What Is a Compressor Filter?
The air compressor filter adopts a pre-packaged configuration, requiring only a single power connection and compressed air connection, and a built-in cooling system, which greatly simplifies installation. Air compressor filters consistently provide high-quality compressed air for all walks of life with their high efficiency, high efficiency, maintenance-free, high reliability and other advantages. The screw compression components in the air compressor filter are manufactured in-house using the latest CNC grinders, and with in-line laser technology, they ensure precise manufacturing tolerances. Its reliability and performance ensure that the operating cost of the compressor is always extremely low during its service life. Tuning compressors, integrated compressors and desiccant series are new products in the series of compressors.
Air compressor filter
- This entry lacks an overview map . Supplementing related content makes the entry more complete and can be upgraded quickly. Come on!
- The air compressor filter adopts a pre-packaged configuration, requiring only a single power connection and compressed air connection, and a built-in cooling system, which greatly simplifies installation. Air compressor filter with its high efficiency, high efficiency, free
- 1 Screw air compressor has the advantages of high stability, high efficiency, low vibration and low noise.
- 2 The yin and yang rotors and the cooperation between the rotor and the casing are set so that the leakage of gas backflow is small and there is no remaining gap volume, so the efficiency is high.
- 3 The injected lubricant has sealing, cooling and lubricating effects
- 4 Few parts, no suction, exhaust valve disc.
- 1. Host: European and American brands with excellent performance and reliable operation.
- 2. Motor: The efficiency of F-class air-cooled motor exceeds the EFFL standard.
- 3. Transmission system: compressor oil lubrication is used at the motor drive end, which is highly efficient, maintenance-free and extremely reliable.
- 4. Fan: large cooling air volume and low noise.
- 5. Cooling system: It adopts plate-fin structure and high-quality materials to ensure the pressure resistance of the cooler, high heat dissipation efficiency and good corrosion resistance.
- 6. Air filter: Heavy-duty, multi-stage air inlet filter, dust removal accuracy is 1um (98% filtered), large contact surface and long service life.
- 7. Oil / gas separator: The new-generation separator uses a new filter material, which is more efficient, and the oil content of the air is less than 2ppm.
- 8. Intelligent controller: All the operations and related data of the air compressor are displayed on the control panel, which is controlled by your fingers, which is easy, convenient and accurate.
- High performance and efficiency
- The air compressor filter-screw air compressor uses high-capacity compression components. Its rotor has a low outer circle speed and achieves optimal oil injection, achieving high efficiency and high reliability. The latest design of Mingyuan Kaide ensures extremely low system and compressed air temperatures. All components are guaranteed to achieve the best cooling effect and the longest service life.
- Maintenance-free, highly reliable and efficient drive concept
- Compressor filter-screw air compressors drive compression components at high speeds suitable for the application through an efficient transmission system. No maintenance is required during normal operation.
- Low maintenance costs
- Air compressor equipment-screw air compressor's original compressor design saves unnecessary maintenance costs. All parts are designed with a long life, and the large size inlet filter, oil filter and fine separator ensure the best compressed air quality. All oil filters and separator assemblies of up to 22kW (30hp) are centrifugally opened and closed to reduce maintenance time. "Speed up to repair point" enables maintenance work to be completed in minutes, reducing downtime and maintenance costs.
- Built-in intelligent control
- To reduce operating costs, precise operational control is essential. All CompAir rotary screw compressors are equipped with an intelligent control system with easy-to-use control menus.
- Air compressor filter-screw air compressor standard L series new product-speed governor compressor
- Mingyuan Kaide Air Compressor Filter is another new product beyond the standard series. It adopts a unique reluctance switch variable speed drive system. This drive system enables the output of the compressor to be matched to different demands, thus greatly saving energy consumption. Standard series compressor equipment is equipped with a compressor, so that the output of the entire system can be precisely matched with the demand, and the energy consumption of the compressor is appropriate.
- Screw air compressor filter equipment-new products of standard series of screw air compressor, integrated compressor and dryer series
- This new screw air compressor filter series is designed to provide customers with a small, ready-to-use complete product. It has the characteristics of small footprint, easy installation, easy transportation and good handling, and can pass through standard-sized doorways. . The series of compressed air is single-connected, and the power supply is also very easy. There is also an integrated dryer with energy-saving thermal mass unit. The new compressor and dryer unit are L series rotary screw compressors Combined with a freeze dryer. The new series is available in 5 models and specifications. The dryer unit is matched with the compressor. The output air can be dried to a constant pressure dew point of 3oC, and there is no need for a refrigeration control valve to avoid repeated adjustments. Under the premise of ensuring the air quality and the reliability of the dryer, once the dew point is reached, the dryer unit will be shut down. The supply fashion has a large air filter that is easy to replace and is matched with the inlet dehumidifier to ensure the best. performance. Provide a variety of outputs, including 7.5kW, 11kW, 15kW, 18.5kW and 22kW, capable of producing up to 3.46 m3 / min at 7.5 bar, while the highest equipment is only 1450 mm.
- (1) Inspiratory process: the motor drives the rotor, and the groove space of the master and slave rotors is turned to the inlet end wall opening
- In the principle of compression, the space is large, and the outside air is filled with it. When the end face of the air intake side of the rotor is turned away from the air inlet of the casing, the air between the grooves is sealed between the master and slave rotors and the casing. Complete the inspiration process.
- (2) Compression process: At the end of suction, the closed volume formed by the tooth peaks of the master and slave rotors and the casing decreases with the change of the rotor angle and moves in a spiral shape. This is the "compression process".
- (3) Compressed gas and fuel injection process:
- During the transportation process, the volume is continuously reduced, the gas is continuously compressed, the pressure is increased, and the temperature is increased. At the same time, the lubricating oil that has become mist due to the difference in air pressure is sprayed into the compression cavity, thereby achieving compression, reducing temperature, sealing and lubrication. .
- (4) Exhaust process:
- When the closed tooth peak of the rotor rotates to meet the casing exhaust port, the compressed air starts to be discharged until the matching surface of the tooth peak and the groove is moved to the exhaust end face. At this time, the groove space is zero, and the exhaustion is completed. Gas process. At the same time, the other pair of tooth grooves of the master and slave rotors have been rotated to the intake end, forming the largest space, starting the suction process, thereby starting a new compression cycle.
- There are many forms of pressure units. Here we mainly introduce the pressure units commonly used in screw air compressor filters.
- Working pressure, domestic users often call exhaust pressure. Working pressure refers to the maximum pressure of air discharged from the air compressor;
- The common working pressure unit is: bar or Mpa, 1 bar = 0.1 Mpa;
- In general, users usually call the pressure unit: Kg (kg), 1 bar = 1 Kg.
- Air compressor filter volume capacity
- Volume flow, domestic users often call the exhaust volume. Volume flow rate refers to the volume of the gas discharged from the air compressor per unit time at the required exhaust pressure, which is converted to the intake state.
- The unit of volume flow is: m3 / min (cubic / minute) or L / min (liter / minute), 1m3 (cubic) = 1000L (liter);
- Generally, the commonly used flow unit is: m3 / min (cubic / minute);
- Volume flow is also called as exhaust volume or nameplate flow in China.
- Filter power of air compressor
- Generally, the power of the air compressor refers to the nameplate power of the matched drive motor or diesel engine;
- The unit of power is: KW (kilowatt) or HP (horsepower / horsepower), 1KW 1.333HP.
- Air compressor filter use and maintenance safety precautions 1. The compressor must be operated, repaired and maintained by qualified personnel.
- 2. The compressor cannot be reversed. After initial start-up or maintenance of the electronic control system, before the compressor starts, you must first confirm whether the motor rotation direction is consistent with the specified steering.
- 3. When disassembling high-temperature components, the temperature must be cooled to ambient temperature before proceeding.
- 4. It is recommended to use special oil for screw compressors. Different grades of lubricants are not allowed to be mixed.
- 5. Without the manufacturer's permission, do not make any changes to the compressor that affect safety and reliability or add any devices.
- 6. The original spare parts of the compressor are specially designed and manufactured. It is recommended to use authentic spare parts to ensure the reliability and safety of the compressor.
- 7. Never block the compressor suction port during operation.
- 8. Compressed air must not be used for breathing unless it has been indicated that it can be used for breathing.
- 9. The compressor cannot be operated under the conditions of exceeding the specified pressure and temperature.
- 10. Once the compressor is found to be abnormal, stop the compressor immediately and eliminate the abnormality in time.
- 11. Use the right tools to maintain and repair the compressor.
- 12. After maintenance and before starting, confirm that all safety devices have been reinstalled and tools have been removed from the compressor. Maintenance 1. Daily check the oil level, exhaust temperature and exhaust pressure, and check for abnormal sounds;
- 2. Open the separator drain valve to drain condensate every week before starting up, check for leaks everywhere, check the safety valve, and check the belt wear (visual inspection);
- 3. Regularly check the intake control valve, minimum pressure valve, electric control box connection line terminals, safety valve, cooling fan;
- 4. Regularly clean and clean the cooler and test the reliability of the safety valve;
- 5. Regularly change the oil filter element, oil separator filter element, intake filter element and lubricant. Common troubleshooting 1. The machine does not start: check the main switch and power cord, check the motor;
- 2. The machine does not load after starting: adjust the pressure switch setting value or replace the pressure switch, check or replace the solenoid valve;
- 3. The compressor does not unload and the safety valve is released: adjust the setting value of the pressure switch or replace the pressure switch, check or replace the solenoid valve;
- 4. Excessive fuel consumption: use the recommended oil, reduce the oil level to the normal position, remove the oil return pipe for cleaning, and replace the oil and gas separator filter;
- 5. The exhaust pressure is lower than the specified value: reduce the air consumption or increase the compressor, check the system for leaks, clean or replace the intake filter element, replace the oil and gas separator element, check or replace the solenoid valve, repair the intake control valve, replace Belt, adjust the setting value of pressure switch;
- 6. Compressor high-temperature protection shutdown: improve environmental ventilation conditions, clean or clean the cooler, add oil to the specified location, and replace the oil filter;
- 7. When the compressor is unloaded, the exhaust pressure still rises slowly, and the safety valve is released: check or replace the solenoid valve, overhaul the intake control valve, and overhaul the unloading pipeline;
- 8. Relief of safety valve: overhaul or replace safety valve, overhaul minimum pressure valve, replace oil and gas separator filter element, overhaul or replace pressure switch, check intake control valve or solenoid valve. Intake air filter element maintenance air filter is a part that removes air dust and dirt. The filtered clean air enters the compression cavity of the screw rotor compression. Due to the internal clearance of the screw machine, only particles within 15u can be filtered out. If the air filter element is blocked and damaged, a large amount of particles larger than 15u enter the screw machine to circulate, which not only greatly shortens the service life of the oil filter element and the fine oil separation core, but also causes a large number of particles to directly enter the bearing cavity, accelerating bearing wear and increasing the rotor clearance. The compression efficiency is reduced, and the rotor is even boring. Oil filter replacement The oil core should be replaced after the new machine is run for 500 hours for the first time. Use a special wrench to rotate the oil filter back to remove it. It is best to add screw oil before the new filter is installed. Screw the filter back to the oil filter seat with both hands. Tighten firmly. It is recommended to replace the new filter element every 1500-2000 hours. It is best to change the oil filter element at the same time when changing the oil. When the environment is harsh, the replacement cycle should be shortened. It is strictly forbidden to use the oil filter element beyond the deadline, otherwise, because the filter element is severely blocked, the pressure difference exceeds the limit of the bypass valve, the bypass valve opens automatically, and a large amount of stolen goods and particles will directly enter the screw main body, causing serious consequences. The replacement of diesel engine oil filter and diesel filter of diesel engine screw engine should follow the maintenance requirements of diesel engine, and the replacement method is similar to that of screw engine oil core. Maintenance of the oil fine separator The oil fine separator is a component that separates the screw oil from the compressed air. Under normal operation, the service life of the oil fine separator is about 3000 hours. However, the quality of the oil and the air filtration accuracy are different. Its life span has a huge impact. It can be seen that in the severe use environment, the maintenance and replacement cycle of the air filter element must be shortened, and even the installation of a front air filter is considered. The oil fine separator must be replaced after it expires or the pressure difference between the front and rear exceeds 0.12Mpa. Otherwise, the motor will be overloaded and the fine oil separator will be damaged and run. Replacement method: Remove each control pipe joint installed on the oil and gas tank cover. Take out the oil return pipe that extends into the oil and gas barrel cover from the oil and gas barrel cover, and remove the fastening bolt of the oil and gas barrel cover. Remove the upper cover of the oil and gas barrel and remove the oil. Remove asbestos pads and dirt stuck to the upper cover. Install a new oil fine separator. Note that the upper and lower asbestos pads must be stapled. The asbestos pads must be arranged neatly when pressed, otherwise it will cause punching pads. Replace the upper cover, oil return pipe, and control pipes as they are, and check for leaks. The quality of maintenance and replacement of the screw oil has a decisive influence on the performance of the oil injection screw machine. Good oils have good oxidation stability, rapid separation, good defoaming, high viscosity, and good corrosion resistance. Therefore, users must Use pure and special screw oil of our company. After the new machine runs-in period of 500 hours, the first oil change is performed, and the new oil is replaced every 2000 hours afterwards. It is best to change the oil filter at the same time when changing the oil. Use in harsh environments to shorten the replacement cycle. Replacement method: Start the air compressor and run for 5 minutes to increase the oil temperature to above 50 ° C and reduce the oil viscosity. Stop operation. When there is 0.1Mpa pressure in the oil and gas barrel, open the oil drain valve at the bottom of the oil and gas barrel and connect the oil storage tank. The oil drain valve should be opened slowly to prevent the lubricant from being splashed under pressure and temperature. Wait for the lubricant to drip and close the drain valve. Unscrew the oil filter element, drain all the oil in each pipeline at the same time, and replace it with a new oil filter element. Open the filler plug and fill with new oil so that the oil level is within the scale of the oil mark. Tighten the filler plug and check for leaks. Lubricating oil must be checked frequently during use. When the oil level is too low, new oil should be replenished in a timely manner. Condensate must also be drained frequently during the use of lubricating oil. Generally, it is drained once a week. It should be 2-3 days in high temperature Discharge once. Stop for more than 4 hours, open the drain valve without pressure in the oil and gas barrel, drain the condensate, and close the valve quickly when you see the organic oil flowing out. It is strictly forbidden to mix lubricants with different brands. Do not use lubricants beyond the deadline, otherwise the quality of lubricants will be degraded, the lubricity will be poor, and the flash point will be lowered, which will easily cause high-temperature shutdown and cause the oil to ignite.
- A common type of screw air compressor filter. Failure of the screw air compressor filter will affect its service life and the personal safety of the operator. Therefore, in industrial production, it is very important to understand the failure of the screw air compressor.
- 1. Screw air compressor filter failure phenomenon: large fuel consumption of the unit or large oil content of compressed air
- The cause of this failure is due to too much cooling amount, the correct position should be observed when the unit is loaded, and the oil level should not be higher than half; the block of the return pipe will also cause the screw air compressor to malfunction;
- If the installation of the oil return pipe does not meet the requirements, the screw air compressor will consume too much fuel; the exhaust pressure during the operation of the unit is too low; the oil separation core rupture will cause the screw air compressor to fail; the internal partition of the separation cylinder will be damaged; cooling Agents deteriorate or expired.
- 2. Screw air compressor failure phenomenon: low unit pressure
- The cause of this failure is that the actual air consumption is greater than the output of the unit; screw air compressor bleeds and the intake valve fails (cannot be closed when loading); the transmission system is abnormal, the ambient temperature is too high, and the air filter is blocked; Solenoid valve (1SV) failure; minimum pressure valve stuck; leakage in user's pipe network; failure of screw air compressors such as pressure sensors, pressure gauges, pressure switches will cause low unit pressure; leakage of pressure sensor or pressure gauge input hose ;
- 3. Screw air compressor failure phenomenon: fan motor overload
- Fan deformation; fan motor failure; fan motor thermal relay failure (aging); loose wiring; blocked cooler; large exhaust resistance.
- 4. Screw air compressor failure phenomenon: the unit current is large
- The voltage is too low; the wiring is loose; the unit pressure exceeds the rated pressure; the oil separation core is blocked; the contactor fails; the host fails; the main motor fails;
- Failure phenomenon 1. Failure phenomenon: the unit exhaust temperature is high (over 100 ° C) · the coolant level of the unit is too low (should be seen from the oil sight glass, but not more than half);
- · The oil cooler is dirty. How to judge whether the cooler is dirty depends on the temperature of the oil inlet and the oil outlet.
- The temperature difference between the normal temperature difference between 20-30 degrees, if it is external dust blocking the heat radiation
- Blow dry with compressed air. If it cannot be blown off, the inside of the radiator needs to be cleaned with a professional cleaning agent.
- Washing (such as heavy oil stain cleaning agent \ Copper copper \ Polyester dust, etc.) If the radiator is blocked inside, it needs to be used; water
- Pump cycle cleaning, cleaning time depends on the situation. If the water-cooled radiator is blocked, the best way is to disassemble
- Clean the inside of the copper pipe with iron bars on the front and rear covers.
- · Oil filter core is clogged;
- The temperature control valve is faulty (the component is broken);
- · The oil shut-off solenoid valve is not powered or the coil is damaged or the solenoid valve diaphragm is broken or aged;
- Now in older models.
- Failure of cooling fan motor;
- · Exhaust duct is not smooth or the exhaust resistance (back pressure) is large;
- · Ambient temperature exceeds the specified range (38 ° C or 46 ° C);
- · Temperature sensor failure (Intellisys control unit);
- Whether the pressure gauge is faulty (relay-controlled unit).
- 2. Failure phenomenon: The unit consumes a lot of oil or the compressed air contains a large amount of oil. The cooling amount is too much. The correct position should be observed when the unit is loaded. At this time, the oil level should not be higher than half.
- · The oil return pipe is blocked;
- The installation of the return pipe (distance from the bottom of the oil separation core) does not meet the requirements;
- The exhaust pressure is too low when the unit is running;
- The oil separation core is broken;
- · The internal partition of the separation cylinder is damaged;
- · The unit has oil leakage;
- · Coolant deterioration or overdue use.
- ·Temperature is too high
- 3. Failure phenomenon: low unit pressure · actual gas consumption is greater than unit output gas volume;
- · Bleed valve failure (cannot be closed when loading);
- · Intake valve failure;
- The transmission system is abnormal, the ambient temperature is too high, and the air filter is blocked;
- Malfunction of load solenoid valve (1SV)
- The minimum pressure valve is stuck;
- Leakage in user's pipe network;
- The pressure setting is too low;
- Pressure sensor failure (Intellisys control unit);
- · Pressure gauge failure (relay control unit);
- · Pressure switch failure (relay control unit);
- Leakage of pressure sensor or pressure gauge input hose;
- 4. Failure phenomenon: the unit exhaust pressure is too high and the intake valve is faulty;
- · Hydraulic cylinder failure;
- The load solenoid valve (1SV) is faulty;
- The pressure is set too high;
- Pressure sensor failure (Intellisys control unit);
- · Pressure gauge failure (relay control unit);
- Pressure switch failure (relay control unit).
- 5. Failure phenomenon: the unit current is too large and the voltage is too low;
- Loose wiring;
- · The unit pressure exceeds the rated pressure;
- · Oil separation core is blocked;
- · Contactor failure;
- Host failure;
- · Main motor failure;
- 6.Failure phenomenon: the unit cannot start
- · Broken fuse;
- The temperature switch is broken;
- Loose wiring;
- The main motor thermal relay operates;
- · The fan motor thermal relay operates;
- · Transformer is broken;
- Intellisys without power input (Intellisys control unit);
- The fault has not been eliminated (Intellisys control unit);
- · Intellisys controller failure.
- 7.Failure phenomenon: When the unit starts, the current is large or tripped
- User air switch problem;
- · The input voltage is too low;
- · Star-delta conversion interval is too short (should be 10-12 seconds);
- · Hydraulic cylinder failure (no reset);
- Intake valve failure (opening is too large or stuck);
- Loose wiring;
- Host failure;
- · Main motor failure;
- · 1TR time relay is broken (relay control unit).
- 8. Failure phenomenon: fan motor overload
- Fan deformation;
- Fan motor failure;
- Fan motor thermal relay failure (aging);
- Loose wiring;
- · Blocked cooler;
- · Exhaust resistance
- Exhaust pressure
- The higher the discharge pressure of the compressor, the more energy is consumed. Set the sum of the use pressure, pipeline resistance loss and pressure drop of the supporting equipment as the lower limit value of the rated exhaust pressure of the screw air compressor. In general, the diameter of the gas pipeline should be selected to be larger. In order to reduce the resistance loss, the purpose of reducing energy consumption for long-term operation is achieved. The higher the discharge pressure of the compressor, the more energy is consumed. So don't choose a compressor with too high exhaust pressure
- 2.Displacement
- Calculate the actual total gas usage factor 1.1-1.2. As a model for selecting the exhaust volume, if the selection is too low, it cannot reach the specified value of the gas consumption equipment. The uneconomical operation of the Netherlands. At the same time, the purchase cost of purchasing a large displacement screw air compressor is relatively high.
- 3. Compressed air quality
- According to the industry's gas equipment requirements for compressor gas, screw air compressors and supporting equipment should be appropriately selected. The following points to consider:
- 1) To reduce the oil content in the compressed gas, an oil removal purifier can be used. If the processing index is high, a multi-stage treatment can be selected.
- 2) To reduce the water content in compressed gas, water removal equipment can be used.
- Comparison of piston machine and screw machine
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- The following is a complete set of installation recommendations in general, for reference only. System one: screw air compressor / piston air compressorvertical air storage tankclass precision filterfreeze dryerP class precision filter role: general purpose protection application scope: general workshop, wind Moving tools, general inkjet. System two: screw air compressor / piston air compressorvertical air storage tankQ-class precision filterfreeze dryerP-class precision filterS-class precision filter Role: Oil-free type "Compressor replacement applications: electronics industry, precision industry, instrumentation, electrostatic printing. System three: screw air compressor / piston air compressorvertical air storage tankQ precision filterfreeze dryerP precision filterS precision filterC precision filter Function: Oil-free and odor-free treatment method Application scope: hospital, breathing, transportation, pharmaceutical, stirring, aseptic packaging, food industry. System four: screw air compressor / piston air compressorvertical air storage tankQ-class precision filterfreeze dryerP-class precision filterS-class precision filteradsorption dryer Class C precision filter role: Ultra-low dew point processing method Application scope: chemical analysis, laboratory, food, breathing, ultra-dryer, brewing industry, high-voltage electrical insulation, optical lenses in powder storage, microelectronic chip manufacturing, static electricity Painting.
- Air compressor energy saving
- With the continuous progress of society and the development of science, energy saving has become a topic of concern more and more. Various industries in various countries are taking active and effective measures to save energy. This article will tell you the energy saving methods of air compressors.
- First, solve the air compressor leakage and gas usage
- According to testing by authoritative organizations, only 10% of the electrical energy consumed by air compressors is converted into compressed air, and the remaining 90% is converted into thermal energy. It can be seen that compressed air is ten times more expensive than electricity bills, but we often ignore it. at this point. In most factories, air leakage can be heard everywhere, but no one cares at all. If we solve the leakage problem, we will save a lot of energy. Therefore, when we hear the air leakage, we must take appropriate measures in time. Measures. There are also some large errors in the use of gas in some factories. For example, in circuit board manufacturers, most electroplating lines use vibration to increase the plating ability of small holes. Some manufacturers prefer to use gas vibration to achieve this purpose. As everyone knows, this method consumes more than ten times more power than using electrical vibration. Therefore, the energy saving of the air compressor, in the timely treatment of air leakage problems, but also to avoid improper gas consumption.
- Second, energy-saving retrofit air compressor
- There are three main energy-saving retrofit methods for air compressors: 1. Variable-frequency speed regulation mode Variable-frequency speed regulation mode is adopted to reduce the shaft power output of the air compressor motor. Before the transformation, when the pressure of the air compressor reached the set pressure, it was automatically unloaded. After the transformation, the air compressor was not unloaded. Instead, the speed of the compressor was reduced by reducing the rotational speed to maintain the required gas network. The lowest pressure. There are two places to save energy: (1) Reduce the power consumption caused by the sudden change of the compressor from the unloaded state to the loaded state. (2) The motor's operating frequency is reduced below the power frequency, which reduces the output power of the motor shaft. The above two methods have reduced the energy consumption of the air compressor in different degrees during operation. However, the air compressor generates such a large amount of heat energy during work that it is emitted to the air in vain. It cannot be said that it is not a great regret that it has not received the general attention of users within a period of time. 2. Centralized control mode Centralized control mode is adopted for multiple air compressors. The number of air compressors is automatically controlled according to the gas consumption. Before the transformation, the number of air compressors turned on was fixed. (1) If the air consumption is further reduced, the air compressor with good performance will automatically stop. In the case of (1), the air compressor consumes electric energy even when it is unloaded. After the transformation, the corresponding number of air compressors can be stopped, and the number of operating units is reduced, which undoubtedly saves electricity. (2) When the gas consumption is reduced to a certain amount, the air compressor reduces the gas production by reducing the loading time. 3. Air compressor heat energy recovery Air compressor heat energy recovery is a very environmentally friendly energy saving method.