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Roots blower and centrifugal fan working principle difference: 1, the centrifugal blower works When the motor rotates to drive the fan impeller rotation, the impeller blades also rotate between the gas, and the centrifugal force thrown out of these gases, gas The flow rate increases so that the gas in the flow of kinetic energy into static pressure energy, and then with the fluid pressure, the static pressure energy can be converted to speed, exhaust through the exhaust gas, and in the middle of the impeller to form a certain Negative pressure, as the entrance was negative pressure, so that the external air immediately under the action of atmospheric pressure into the continuous rotation of the impeller continuous discharge and fill gas, so as to achieve the purpose of continuous blasting. Under the same power, wind pressure and air flow in the general inverse ratio. The same power, the wind pressure is high, the air volume will be relatively low, while the air volume, wind pressure will be lower, so as to take full advantage of motor efficiency. 2, Roots blower, Roots blower works How it works: Roots blower is a positive displacement fan, the delivery of air flow and the number of revolutions, trilobate impeller for each rotation by the two impeller 3 suction, exhaust , Compared with the two-leaf type, less gas pulsation, small load changes, high mechanical strength, low noise, vibration is small. In the two parallel axis is equipped with two trilobate impeller, the wheel and the oval-shaped hole in the chassis and the impeller always maintain a slight gap between the three, as the impeller rotation in opposite directions for uniform rotation, so that the box And a certain amount of gas surrounded by the impeller from the suction side to the discharge side. Each impeller is always maintained by the synchronous gear phase correct, will not touch each other phenomenon, which can be high-speed, without internal lubrication, and simple structure, stable operation, stable performance, to adapt to a variety of uses, has been used in a wide range of field. Oasis Roots blower introduction and absorption of clover Roots blower advanced technology, the use of advanced CAD-aided design, research and development and professional Seiko production of high quality, low noise, a new generation of energy efficient products, the product has a reasonable structure, small size, High pressure, high efficiency, large air volume, low noise, stable operation, excellent performance, long life, easy maintenance and so on. Its flow rate from 0.8m3 / min-180m3 / min, boost 9.8kpa-98.8kpa, a total of 11 models, more than 80 kinds of specifications, has been widely used in sewage treatment, aquaculture, pneumatic conveying, vacuum packaging, coal washing, Combustion, booster, casting, mining, metallurgy, chemicals, light industry, building materials, electricity, flour, sandblasting, vacuum and other fields.

When the piston air compressor is working, the internal gas is quickly compressed and the temperature rises quickly. In order to reduce the exhaust gas temperature, the air compressor must be cooled. The usual cooling measures are interstage cylinders and post-press cooling, and there is a cooling medium flow in the cooling system to reduce the temperature of the compressed air and air compressor to ensure their normal operation. 1.2 Cooling can maintain the displacement of the cylinder in addition to improving the lubrication effect, but also maintain the normal displacement of the air compressor. In order to prevent the piston from damaging the cylinder due to thermal expansion. The cylinder of the compressor should maintain a fixed volume of more than 7 volumes. After a good exhaust, there is a small amount of gas remaining in the cylinder. The temperature of the remaining gas gas varies. Under normal circumstances 1 The necessity of air compressor cooling 1.1 Cooling can improve the lubrication conditions During the operation of the air compressor, the viscosity of the lubricating oil is easily torn with the temperature of the oil film. Reduces lubrication and causes various accidents. In severe cases, the lubricating oil evaporates the light fractionated oxide under the action of high temperature to form acid asphalt and carbide. These metamorphic materials are easily deposited to form carbon deposits, and oxidize and exotherm under high temperature and high pressure, if the heat is not released in time. Will spontaneously ignite and produce an explosion. The working cycle of the lower air compressor is 1234 1. However, if the cooling effect on the cylinder is poor. The working cycle of the air compressor becomes 1+2. 3 The exhaust temperature rises and the exhaust pressure increases. It can be seen from 1 that under the condition of poor cooling, the expansion process 41 of the air compressor is increased compared with the expansion process 41 under normal conditions, and the suction process is shortened, that is, 121 2. Due to the atmospheric pressure at the suction port It is basically constant, so the inspiratory velocity is unchanged in both processes. Thereby the amount of inhalation is reduced. There is a reduction in discouragement. Maintaining a good cooling of the cylinder overcomes the problem of high exhaust gas temperature and high pressure fire exhaust. , 1.3 cooling can improve efficiency in order to prevent the formation of carbon deposits. In response to the cylinder of the air compressor, the main purpose is to dissipate the frictional heat between the piston and the cylinder. To provide a good working environment for the lubricating oil, usually control the amount of cooling water to maintain the exhaust temperature + more than 200 is appropriate.

Air suspension is not a new technology developed in recent years. Their basic technical solutions are similar, mainly including air springs with compressed air inside and variable damping shock absorbers. Compared with traditional steel suspensions, air suspension has many advantages. The most important point is that the spring's elastic coefficient is the spring's soft and hard energy can be adjusted automatically according to needs. For example, the suspension can be hardened at high speed to improve the stability of the vehicle. When driving at low speed for a long time, the control unit thinks that it is passing through the bumpy road, and the suspension is softened to improve the shock absorption comfort. In addition, the acceleration generated by the impact of the wheel on the ground is also one of the parameters considered when the air spring is automatically adjusted. For example, at high speed cornering, the air springs and shock absorbers of the outer wheel will automatically harden to reduce the roll of the body. The electronic module will also strengthen the spring and shock absorber hardness of the front wheel during emergency braking. To reduce the inertia of the body forward. Therefore, models equipped with air springs have higher control limits and comfort than other vehicles.

The replacement of piston compressors with screw compressors is an inevitable trend for the development of power air compressors. At present, industry statistics show that screw air compressors have become the main force of air compressors, but one cubic meter still needs more distance. In recent years, with the rapid development and maturity of China's large-scale machinery industry, air compressors, which are important components of large-scale machinery, have also entered a period of rapid development. The output of the domestic air compressor industry is growing at a rate of more than 20% per year. According to the "2015-2020 China Air Compressor Industry Production and Sales Demand Forecasting and Transformation and Upgrade Analysis Report" released by relevant agencies, China's air compressors finished products reached 2.609 billion yuan in 2013, an increase of 37.58%; the industrial output value of the industry was 43.276 billion yuan. Yuan, a year-on-year increase of 26.00%. The rapid increase in output corresponds to the increase in demand for air compressors in the downstream industries. The market demand for air compressors in China has been steadily rising since 2008. In 2013, the sales revenue of the air compressor industry was 43.708 billion yuan, a year-on-year increase. 21.37%; industry industrial sales value reached 41.609 billion yuan, an increase of 22.% year-on-year. In 2013, the growth rate of air compressor sales revenue reached 21.37%. The main driving factor was the rapid development of screw-type air compressors. In 2013, the sales growth rate of screw-type air compressors reached 22.23%, faster than that of air compressors for the first time. Growth rate; It is expected that the sales growth rate of screw air compressors in the future will still be faster than the overall growth rate, and the proportion in the air compressor industry will increase. The analysis report predicts that in the coming period, China's air compressor industry will maintain a stable development trend, but at present, the domestic air compressor industry still faces many problems such as low corporate concentration, unregulated competition, weak product competitiveness, and lack of innovation capability. It can be said that the transformation and upgrade of the domestic air compressor industry is imminent.

Taking the single-screw air compressor as an example to illustrate the working principle of the screw air compressor, as shown in the figure is the structural schematic diagram of the single-screw air compressor (screw air compressor). The working principle of screw air compressor (screw air compressor) is as follows: suction, sealing and conveying, compression and exhausting. When the screw rotates in the housing, the screw meshes with the groove of the housing, the air is sucked in by the air inlet, and the oil is also sucked in, and the sucked oil is sealed and transported to the exhaust port due to the rotation of the meshing surface; During the process, the meshing gap of the tooth groove gradually becomes smaller, and the oil and gas is compressed; when the meshing surface of the tooth groove rotates to the exhaust port of the casing, the higher pressure oil and gas mixed gas is discharged from the body. The inverter of the screw air compressor can change the displacement of the screw by changing the speed of the screw rotor. When the volume of the gas changes, the inverter changes the speed of the air compressor to adjust the displacement of the air compressor to achieve a constant discharge pressure. Change and save energy for the purpose.

In the main structure of the screw air compressor, there is an important part, that is, the motor, the motor is generally divided into ordinary motor and variable frequency motor. Ordinary motors can only operate stably under rated conditions, while variable-frequency motors do not. It can operate at stable speeds according to different loads and requirements. So, what is the difference between the variable frequency motor and the ordinary motor of the screw air compressor? Screw air compressor variable frequency motor 1, ordinary motor speed is fixed, it can not be adjusted, and variable frequency motor can flexibly adjust the speed, so as to achieve effective energy saving purposes and effects. 2, the same size of the motor, the general motor core cross section should be small and small number of turns, small diameter, low insulation capacity, frequency conversion motor is just the opposite. 3, ordinary motor slot insulation is poor, the quality of the insulation material used is also relatively poor, slot insulation thickness is not enough. 4. The frequency conversion motor increases the electromagnetic load on the basis of the ordinary motor. The above are several important differences between the screw air compressor inverter motor and the ordinary motor. Of course, the difference is far more than these. The user can consult the air compressor salesman or air compressor professional maintenance technicians will get a more detailed answer .

Air compressor maintenance What should we do? Our daily maintenance is generally conducted from the following 6 points. 1) Regularly check the joint drive system of air compressor and water pump. If it is geared, add lubricant to the gear box and check the meshing state of the gears. If it is a toothed belt, check the tension and wear of the belt. If necessary, replace the toothed belt. 2) Periodically inspect the air compressor air filter, clean the filter element with compressed air, and replace the filter element if necessary. 3) Regularly check the oil level in the air compressor oil tank, add oil to the maximum oil level, and periodically replace the oil. 4) Regularly check the air compressor oil filter and replace if necessary. 5) Regularly inspect the oil and gas separator of the air compressor, clean the internal impurities, and replace the filter element of the separator if necessary. 6) Regularly check the working status of the air pressure relief valve of the air compressor to ensure that the pressure relief is exceeded.

Air compressor Why configure the filter? Today to explore the specific reasons, air compressor filters need to install two parts of the filter, respectively, two filters: one is the oil-water separator and precision filters. Then where the water separator installed it? In accordance with the standard installation of oil-water separator is mainly installed in the air compressor outlet and the tank connected to the middle of the original I remember a lot of brands of air compressor in the air outlet directly in front of the air compressor configuration, in order to facilitate the user Need to install the water separator. Most air compressor brands in order to save the cost of air compressor cost are omitted this feature, all for the user demand for gas consumption is high or the configuration of oil-water separation effect is better. He can help post-processing to reduce stress, so that the cold dryer to reduce the load effect and performance greatly enhance the gas source cleaner. Another is the precision filter, and its main function needless to say all know, the air more precise filter. Then it is configured in what position? This is very important, on the air compressor filter in this precision filter 5 and 3 filter points, the general business is probably equipped with a three-stage filter to meet the demand for gas. In some special industries, I have seen mainly electroplating factories. Their requirements are very high. Almost all the water is treated cleanly. If there is a little water they will not be able to discharge the products. So they are equipped with dual dryer and 5 filters, double dryer means a freezer dryer and Taiwan adsorption dryer, so as to meet the requirements. But in 80% of the enterprises are three levels of filtering is enough, level 3 filter is configured in front of and behind the dryer, the first installed in the gas tank and the dryer, this Is the level is the coarsest, the second and third are installed in the cold dryer outlet, after the dryer treated air once again filtered out of the water in order to achieve the air quality standards.

Water comes from the air, because there is always water in the air, the so-called humidity. After compression, it becomes supersaturated. The water in the air is analyzed and becomes a liquid. The moisture content in the compressed air is related to the humidity of the air, because the humidity of the air changes all the year round. It may be that the humidity you are searching for now is playing. As for the oil, the lubrication system from the compressor may be worn by the mechanism, the clearance increases, and the oil escapes into the cylinder. Questioning What causes the wear of the lubrication system? Should it be repaired? Reply It is the wear in long running. If you are concerned about the oil content, you must repair it. In addition, after the air compressor comes out with a larger air tank, the oil and water will settle to the bottom of the tank, and regular discharge can reduce the oil and water content in the compressed air. Of course, filters and the like can be used to further reduce the oil and water content.

The origin of freeze-drying machines originated in the 1920s vacuum freeze-drying technology after decades of ups and downs, and made great progress in the 20 years after Zui. In the 21st century, vacuum freeze-drying technology has become more and more popular with people due to the advantages that other drying methods cannot match. In addition to its wide application in the fields of medicine, biological products, food, blood products and active substances, its application scale and field Still expanding. To this end, vacuum freeze drying is bound to become an important application technology in the 21st century. Freeze-drying process The freeze-drying process plays a key role in the manufacture of certain biological products and pharmaceuticals. For example, the measles vaccine and BCG vaccine are only valid for 3 months in the case of cold preservation, and the BCG vaccine safety test takes 2 months to complete. The lyophilization process keeps the live bacteria count of BCG in a qualified level after 4 to 5 years of storage. At present, the lyophilization process biopharmaceutical is mainly used in the production of biological, biochemical products, traditional Chinese medicine injection products and heat-labile antibiotic products.

What are the reasons why the high pressure blower impeller does not rotate? How to solve it? There are many reasons why the vortex pump does not rotate. 1, is not connected to power - this is the simplest but there may be issues, as long as the power can be 2, the motor does not work - there are two problems, one is the wrong motor wiring, need to check the wiring, or the motor is broken, if the motor is broken, you need to repair or replace 3, pump head damage - repair the pump or replace 4, foreign objects in the pump stuck - remove foreign matter debris will be solved! The above is the common reason why the impeller does not rotate.

Machine, has a broad prospect of large-scale promotion and application. 1 In the former section of the old air compressor, the 5408 type rolling machine that was used in the Yuli Coal Mine was upgraded in 1985. It has high energy consumption, high noise and its anvil characteristics, and the failure rate is also high, which cannot guarantee production. The source of compressed air during the process. It has many defects and hidden dangers in many aspects. For example, the crankcase is easy to destroy the crankshaft fatigue broken connecting rod and the like. The wind-water-containing large synchronous motor is affected by the high temperature weather in summer and the aging of the electrical components is affected, which is unfavorable for safe production. It can only be unloaded, not automatically stopped. Also can't be! move. Maintenance 1 is large, there is no reliable 1 guarantee, and the unit cost of gas production in the production process is relatively high, so it is necessary to step up the renovation to improve work efficiency and reduce production costs. Moreover, this type of equipment has also entered, and the list of households has been eliminated. According to the characteristics of the coal mine, the power equipment must be required to have a higher level; 1 venting is particularly effective in the prevention of melon 4 in the underground, which seems to be unsatisfactory and the maintenance workload cannot be too high. There are many drawbacks based on the old series of air compressors, and it is an irresistible trend to promote the new series of air compressors. 2 characteristics of single screw air compressor The new series of air compressors is the most advanced technical equipment in the country. It is also an advanced technology in the 1st world. Research and promotion of such technical equipment has a very important meaning for improving the scientific and technological progress of mining areas, improving safety production capacity, reducing consumption, improving the operating environment, and improving the economic efficiency of enterprises. Promoting the new series of air compressors can solve the old series of air compressors. Many questions existed in the machine to achieve better safety production and energy saving targets, and have the effect of reducing noise and improving the environment. The main points are as follows: ensuring safe production and meeting the demand for compressed air in the well; reducing noise, improving the environment, and improving the health of operators; improving work efficiency and energy saving, reducing oil consumption and reducing electricity consumption!

Advantages of Miniature Fully Enclosed Single-Phase Two-Stage Compressor In order to reduce the leakage caused by the gap between the piston and the cylinder, the pressure in the compressor casing should be the high-pressure inlet pressure so that the pressure difference across the two-stage piston is minimized. A buffer tank is provided at each of the high and low pressure inlet and outlet to reduce the vibration caused by the airflow pulse. The miniature single-machine two-stage hermetic compressor adopts the movable or angled structure to balance all or part of the inertial force, so that the vibration caused by the inertial force and the noise caused by it will not increase, but will have some reduce. In terms of wear, the main bearing becomes smaller due to the offset of the inertial force balance, and the gas force of the piston can be reduced and balanced, and the load condition is improved, so the life is also improved. The connecting rod size head bearing also reduces the gas pressure difference at both ends of the piston, the friction loss is reduced, and the life is also improved. Valve life is also extended by the pressure differential and compression ratio. The use of two-stage compression makes the compression power smooth and reduces, and the motor output power is correspondingly smooth and small, which is beneficial to the improvement of the life and efficiency of the motor. After the exhaust gas temperature is lowered, the lubrication condition of the compressor will be greatly improved. The gas transmission coefficient is increased as the volume, pressure, temperature, and leakage coefficient increase. In the refrigerator application, the compression power consumption can be reduced; the intermediate pressure of the two-stage compression, combined with the refrigeration and refrigeration characteristics of the refrigerator, can reasonably determine the ratio of the two-stage piston area, optimize the freezing and refrigerating evaporation pressure and temperature, and reduce the heat exchange temperature difference. , to reduce the frost in the refrigerator, and to achieve the purpose of reducing the ineffective heat loss, the refrigeration coefficient can be increased about. In short, after using the single-stage two-stage fully enclosed compressor, the inertial force and the gas force are partially balanced, which is much better than the existing micro single-row single-stage fully enclosed compressor, and can greatly extend the service life of the compressor. Reduce energy consumption in applications. The preliminary concept of the structure of the miniature fully enclosed single-stage two-stage compressor is mainly to manufacture the refrigerator and the micro-closed single machine with low cost in the case of the existing refrigerator compressor manufacturing process and equipment. The two-stage compressor conforms to the energy-saving trend of the refrigerator, which makes it play a certain role in the energy-saving application of the refrigerator.

For general users, provide some compressor maintenance recommendations, users can refer to the implementation. 1 per week: a. Check the unit for abnormal noise and leakage. b Check that the meter reading is correct. c. Check if the temperature display is normal. 2 monthly: a. Check if there is any rust or looseness inside the machine. If there is rust, remove the rust and oil or paint, tighten the loose place b. Drain the condensed water. 3 every three months: a. Remove the outer surface of the cooler and the fan cover and the dust at the fan blade. b. Fill the motor bearing with the lubricating oil. c. Check the hose for aging or cracking. d. Check the electrical components and clean the electrical control box.

1, first of all to understand the type of pump, characteristics, the current situation. Understand the requirements, determine the repair target. Before testing, prepare for testing. 2, to determine the fault, diagnosed fault. Judgment, may save trouble. Confirmed to verify. 3, troubleshooting, first Jane after the complex, the first easy hard. Do not disassemble without demolition. To reduce the lack of special tools and improper operation caused by new damage, reduce the position changes and run-in time. In general, the splicing rotor is not removable, otherwise the form of tolerance can not be guaranteed, the rotor scrapped. 4, toxic, harmful, corrosive pumps, users should be invited to clean, and inform the necessary protective measures to protect the health of maintenance personnel. 5, classification of the proposed fault is divided into operational failure and performance problems. Operation failure can include pump does not turn, the pump temperature is too high, oil spills, water leakage, the maximum power exceeded. Performance failure can include the ultimate pressure, extreme pressure, suction efficiency, noise, fuel injection, gas town performance, etc. can not meet the requirements or not. 6, fault diagnosis and diagnostic examples (1) pump does not turn. Unidentified can not open the pump, so as not to aggravate the fault. Can be used to move hands and can not move. ① pump can move without turning. The reason can be coupling failure; belt slippage; motor wiring is wrong; motor damage; no power and so on. ② can not panic or plate up very heavy, the reason can be because the starting pump temperature is too low, the pump oil viscosity is too high; design and manufacture of pump stop too much oil. Too much oil caused by the pump back to the oil too much (too much fuel, or water vapor condensation in the pump, or condensate in the exhaust pipe back to the pump); foreign matter in the pump (intake manifold welding (Copper sleeve, rotor, wall, pump cover, stator, bearings). (2) the pump temperature is too high. The fingers Low-grade exhaust valve measured near the maximum oil temperature exceeds the manual value.As the pump temperature will make a substantial decline in the viscosity of the pump oil, and the saturated vapor pressure of the pump oil to increase the maximum pressure of the pump and pumping The gas efficiency is reduced; the rubber parts are easily aged; the thermal expansion reduces the running clearance, especially the thickness direction of certain non-metallic rotary blades and the clearance of the copper sleeve inner hole, affecting the reliability of pump operation. The ambient temperature is too high, the intake air temperature is too high, the intake cooling device fails, the pump long-term continuous operation inlet pressure is too high; water cooling pump cooling water is insufficient, circulating water design is not good; temperature control water regulating valve failure, etc. (3) Oil leakage can occur in the shaft seal, fuel tank and Pump parts sealing surface, drain plug, oil standard, oil hole bulkhead, stator parts and support through-hole connections Department, the gas town valve (for example 2X-8) and other parts.Can be aging seals, improper installation, damage Failure, uneven surface, impurities, rough and loose castings, etc. If you stop the pump back to the oil, the oil will enter the gas town valve, gas valve may not leak oil. Homemade rubber mat, be sure to use oil-resistant rubber , According to the original design shape, the sealing surface is too large when the pressure is not tight will leak. (4) Water leakage can occur in the water pipe joints, water jacket boring cover plane, drain hole screw plug, drain valve, Casting defects, cracking, may also lead to water leakage. (5) High power over standard. Can be long-term continuous for the inlet pressure is too high, the exhaust pressure is too high, debris into the occlusion occurs, the pump temperature is too high, Too small, the voltage is too high, the pump fluid is too much back into the pump caused by damage to the motor should be avoided in the vicinity of the maximum power long-term continuous operation. If there is sediment on the surface, to be regularly removed for removal. Pressure is not up to standard , Internal leakage, blockage of oil hole, poor or bad quality of pump oil, deterioration of water, condensable substances such as water vapor, distortion of instrumentation, abnormal pump operation, etc. When the leakage is large, white steam can be seen through the exhaust port. There are more bubbles in the standard place, the hand can feel the exhaust pressure on the exhaust port, the low-level exhaust valve has more air bubbles on the oil surface, and the power will increase.At this point, first check whether the air-ballast valve is closed. Because the new pump factory in the pump each port to measure the ultimate pressure, so if the leakage phenomenon, the pump port and the pipeline, valves, containers one by one inspection. Outside the shaft seal failure, the oil cup oil-free, gas-tight head can also leak Resulting in leakage.The internal leakage can be caused by the movement of the pump clearance, exhaust valve seat plane, the exhaust valve sealing surface, the shaft seal, pump cover plane, intake pipe, gas valve seals, etc .. Wear, corrosion, occlusion Will make the running clearance increase.Oil blocking, open the refueling hole to listen, the pump noise will be lighter, in the case of a good seal, if the hand on the exhaust port has been sucked feeling, the exhaust valve may fail. If the pump oil clean, unused long-term storage, open the town valve to purify the water vapor pump. If invalid, should check apricot meter. If the pump oil yellow and white has emulsified, the gas can be fully open the town, adjust the atmosphere to purify the operation, if necessary, the amount of gas into the pump port operation, can speed up the purification process. If other volatile gases or liquids are pumped, please change the oil in time and wash the oil tank if necessary. Some pumps, in the interstital airway will be deposited pump fluid, in order to obtain a good oil change effect, to find ways to drain the pump fluid. The ultimate pressure is measured using a seat compression mercury vacuum gauge. Measured values increase with a full pressure gauge such as a calibrated thermocouple gauge. Note the regulation of the thermocouple gauge to be paired. It is advisable to back up a calibration that is calibrated at the same time for comparison against any suspected contamination regulation. Increasing the ultimate pressure will decrease the pumping efficiency during high vacuum and will also raise the ultimate total pressure. Can refer to the above description to determine, check, deal with the decline in pumping efficiency and the ultimate pressure rise of the failure. (7) noise. Pump structure design, the motor and pump bearing noise, rotating pieces and other moving parts are smooth, too much oil into the fan, the noise generated by the transmission, a large intake, open air town operation, the oil pan and other pumps Loose parts, inequitable installation caused by vibration, will affect the pump noise. (8) fuel injection. To prevent the injection of fuel tank back to the oil hole size, location, sealing conditions, oil retaining plate design, installation, exhaust part of the mist reducer, oil cap, gas separator, the level of oil into the oil The amount of the size, will affect the pump fuel injection, pump open air pumping, direct pump exhaust air flow rate can be as high as 30m / s, blowing the oil surface, the pump circulating oil and air out of the oil Will test the measures to prevent fuel injection. 7, other. Some pumps have oil pumps, oil separators, check valves on oil lines, mist eliminators, inlet filters (for oil vapor return flow), inlet dust filters and other components or accessories, as well as checks . Pump failure will pump lubrication and seal failure, mist eliminator failure, it is possible to make the exhaust pressure increases, the power increases, damage to the motor, inlet filter failure can increase the intake resistance, pumping speed decline, pumping Decreased efficiency. 8, cleaning. Should not be dipped, so as to avoid the spill into the splicing internal, difficult to discharge. 9, disassembly. In accordance with the use of shouting recommendations and regulations to orderly carried out, remember the location, reasonable display, so as to avoid wrong equipment.

The air compressor output air pressure is sufficient, but the air pressure gauge refers to zero phenomenon: the air compressor is not inflated, the double needle air pressure gauge always points to [0", and the brake pedal is also used to no avail, and no leaks are found in each pipeline. Remove the wet air reservoir intake pipe joint, start the engine to run at medium speed, and block the air source pipe with your thumb to check that the airflow is weak. Remove the air compressor outlet pipe joint and block the air supply pipe with your thumb. It feels that the air pressure output from the air compressor is very high, and the thumb cannot block the air flow. The air compressor is inflated slowly (1) Phenomenon: When the engine is running at medium speed, the air compressor is not inflated or inflated slowly. (2) Reason: The air compressor outlet pipe is blocked by grease. (3) Analysis: Due to the obstruction of the air compressor outlet pipe, it is difficult for the compressed air to enter the air reservoir, so the air compressor is inflated slowly or not. At the same time, the pressure of the air compressor outlet pipe rises and its temperature rises. (4) Judgment: When the air compressor is inflated slowly or not, touch the air pipe by hand. If the air pipe has a hot feeling, it may be the air pipe blockage between the air compressor and the wet air reservoir. Remove the air pipe joint on the wet gas cylinder check valve, start the engine, and drive the air compressor to run. If the air pipe has no airflow or substantially no airflow output, remove the air outlet pipe joint on the air compressor. If the air compressor has a normal airflow output at this time, it indicates that the air pipe between the air compressor and the wet air reservoir is blocked. (5) Treatment: Remove the air pipe from the air compressor to the wet air reservoir, and heat the gas pipe one by one on the fire to make the oil scale in the pipe become brown powder by high temperature. With the nozzle facing down, tap gently with a small wooden stick and pour out the powder inside the tube. The root cause of this failure is caused by the air gap between the air compressor and the cylinder wall being too large. Therefore, the good working performance of the air filter and the normal technical state of the air pressure regulating valve should be maintained to reduce the wear of the internal parts of the cylinder, prevent the early oil from being smashed, and prolong the service life of the air compressor. In addition, the oil plug spring of the air compressor is too soft or improperly assembled (the crankshaft and the oil hole positioning hole are not inserted at both ends of the spring), so that the oil plug and the back cover are in poor contact, and the air compressor is easily smashed. If this is the case, replace the spring or reassemble.

After the blockage, the piezoresistance increases, causing the actual exhaust pressure of the unit to increase, the unit energy consumption increases, and the production cost increases. The function of the oil filter: The function of the oil filter is to filter out the metal particles and impurities in the special oil for the air compressor. The oil that enters the host is very clean to protect the host from the material used to safely run the oil filter: The replacement standard for the high-precision filter paper oil filter is replaced after the actual use time reaches the design life time. Oil filter design life is usually 2000 hours. It must be replaced after it expires. The poor condition of the air compressor should be shortened using the design time. The plugging alarm should be replaced immediately after the service life limit. The set value of the oil filter clogging alarm is usually 1.0-1.4bar. The hazard of the overuse of the oil filter: insufficient oil return after plugging. Causes the exhaust gas temperature to be too high, which shortens the service life of the oil and the oil separation core. The lack of return oil after plugging causes insufficient lubrication of the main engine and severely shortens the service life of the host. After the filter element is damaged, the unfiltered oil containing a large amount of metal particles enters the host, resulting in damage to the host. . The function of the air filter: The air filter is an important protective barrier for the air compressor. It filters out the dust and impurities in the air sucked by the air compressor. The cleaner the air to be sucked in, the service life of the oil filter, air separation core and oil can be More protection; prevent other foreign materials from entering the host, because the components of the host are very precise, and the important cooperation gap is 30-150μ. Therefore, the entry of foreign matter will inevitably cause damage to the host, causing the host to [lock up" or even replace the waste filter. Standard: The replacement criteria of the air filter are determined based on the design filter life of the air filter and the ambient air quality of the air compressor.

After the blockage, the piezoresistance increases, causing the actual exhaust pressure of the unit to increase, the unit energy consumption increases, and the production cost increases. The function of the oil filter: The function of the oil filter is to filter out the metal particles and impurities in the special oil for the air compressor. The oil that enters the host is very clean to protect the host from the material used to safely run the oil filter: The replacement standard for the high-precision filter paper oil filter is replaced after the actual use time reaches the design life time. Oil filter design life is usually 2000 hours. It must be replaced after it expires. The poor condition of the air compressor should be shortened using the design time. The plugging alarm should be replaced immediately after the service life limit. The set value of the oil filter clogging alarm is usually 1.0-1.4bar. The hazard of the overuse of the oil filter: insufficient oil return after plugging. Causes the exhaust gas temperature to be too high, which shortens the service life of the oil and the oil separation core. The lack of return oil after plugging causes insufficient lubrication of the main engine and severely shortens the service life of the host. After the filter element is damaged, the unfiltered oil containing a large amount of metal particles enters the host, resulting in damage to the host. . The function of the air filter: The air filter is an important protective barrier for the air compressor. It filters out the dust and impurities in the air sucked by the air compressor. The cleaner the air to be sucked in, the service life of the oil filter, air separation core and oil can be More protection; prevent other foreign materials from entering the host, because the components of the host are very precise, and the important cooperation gap is 30-150μ. Therefore, the entry of foreign matter will inevitably cause damage to the host, causing the host to [lock up" or even replace the waste filter. Standard: The replacement criteria of the air filter are determined based on the design filter life of the air filter and the ambient air quality of the air compressor.

The oil-free air compressor is the main body in the air source device, which is a device that converts the mechanical energy of the prime mover (usually an electric motor) into gas pressure energy, and is a pneumatic generating device for compressed air. The following is a brief introduction to several things to be aware of when using an oil-free air compressor, as follows: 1 When the oil-free air compressor is shut down due to power failure, in order to prevent the compressor from starting with pressure, the pressure switch power-off handle should be pulled when the power is turned on again, the air in the pipeline is drained, and the compressor is restarted. 2. The user must set the oil-free air compressor to protect the grounding wire to ensure good contact between all metal casings of the compressor and the earth. The grounding resistance should meet the national standards. 3. The oil-free air compressor should stop running immediately when it finds serious air leak, abnormal noise or odor, and find out the cause can be re-run after the fault is restored. 4. The air compressor is an oil-free air compressor, and the friction parts are self-lubricating, so do not add lubricating oil. 5. The air compressor must be fixed on a ventilated, stable and sturdy work surface. To reduce noise and vibration, a shock absorber must be provided. 6. The filter medium (foam sponge or felt) in the filter should be cleaned every three months to blow off the dust on the medium. If necessary, wash it with water, dry it and use it again. 7. The oil-free air compressor is maintained at least once a quarter. The maintenance includes thoroughly removing the dust and dirt from the compressor, checking and tightening the connecting bolts around the compressor, whether the grounding wire is intact, and checking the electrical circuit for aging damage. .

In order to use Piston Air Compressor safely and efficiently, it is necessary to carry out the power-on inspection after the general commissioning and installation. The specific parts to be inspected are as follows: 1. Check the stability Piston Air Compressor: Before starting, first make sure that the giant air compressor is fixed and the screws are tightened. Another important point is that the air compressor operator must have a certain technical foundation and a strong sense of responsibility. It is strictly forbidden to leave the post privately while the piston air compressor is working. 2. Check the safety valve Piston Air Compressor: Before starting the air compressor, make sure that the safety valves of all levels are working properly. The pointer of the safety valve indicates the correct position. If the pointer is deflected, the piston air compressor should be operated before troubleshooting. 3. Check the air pressure Piston Air Compressor: Those who have operated air compressors generally know that when a piston air compressor is started, the starting current is several times larger than when it is normally operated. Such a strong starting current is a big challenge to the performance of the motor itself, to the transformer, and the gas transmission line, and it is easy to damage it. Therefore, how to shorten the starting time of the piston air compressor and reduce the starting current of the air compressor is a subject worth studying. So far, no-load start-up is the most effective measure to guarantee this requirement. In order to meet this requirement, the current operation is to ensure that there is no pressure in the cylinder before the start air compressor. If there is pressure in the cylinder, the starting torque will become larger, so that the starting current of the motor will increase, which may easily cause motor overload or grid accident. Therefore, before the start Piston Air Compressor, the operator must gradually check the pressure of the pressure gauges at all levels. If it is found that there is gas, the air compressor should be vented and depressurized.