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Working principle of sliding vane compressor
Air is sucked in through a filter and a regulating proportional valve. The regulating valve is mainly used to regulate the pressure chamber formed by the rotor and slide of the air cylinder. The rotor rotates eccentrically with respect to the cylinder, the valve plate is installed in the rotor groove, and the slider is pushed to the cylinder wall by centrifugal force. The efficient oil injection system can ensure the cooling of the compressor and the minimum loss of lubricant. A thin oil film formed on it can prevent direct contact between metal parts and cause wear. During the compression process, the volume between the slider of the compressor rotor and the cylinder is continuously reduced. The compressed oil-gas mixture is mechanically separated and filtered to separate the oil content in the compressed air below 2PPM. The purified compressed air enters the radiator for cooling, and the condensed water formed after cooling is discharged through the separator of the electronic condensate drainage device.
Working process of sliding vane compressor
As shown in Figure 2 below, the body is provided with an intake orifice (left side) and an exhaust orifice (right side). When the cell volume gradually increases, it meets the suction orifice on the left. Start inhaling the gas until the element volume reaches the maximum, and the inhalation ends when the latter slider (relative to the direction of rotation) that constitutes the element volume crosses the upper edge of the inhalation orifice. Later, the cell volume began to shrink, and the gas was compressed in it. When the previous slide that constitutes the elementary volume reaches the upper edge of the exhaust orifice, the elementary volume begins to communicate with the exhaust orifice, the compression process ends, and exhaust begins. When the latter slide of the elementary volume crosses the lower edge of the exhaust orifice, the exhaust is terminated. After that, the cell volume reaches the minimum value. The rotor continues to rotate, and the cell volume begins to increase again. As a result, the compressed gas remaining in the minimum volume expands. When the previous slider of the cell volume reaches the lower edge of the suction orifice, the expanding cell volume is communicated with the suction orifice again, and gas inhalation is restarted. If the number of sliders is z, during each revolution of the rotor, there are z elementary volumes in turn to perform the suction-compression-exhaust-expansion process. Classification: the first category: oil-dropping vane compressors; the second category: oil-injecting vane compressors; the third category: oil-free vane compressors.
Features of sliding vane compressor
1. High reliability, continuous operation for a long time
Due to the use of rotating sliding vane design, the moving part has only one rotor, low speed (1460 rpm), high reliability, low oil temperature and exhaust temperature during operation, and it can be placed in harsh environmental conditions as usual Work-In this way, the downtime is reduced, which is equivalent to saving a lot of money. The screw compressor has many moving parts, including yin and yang rotors, speed-increasing gears and transmission belts. The speed is high (3000 rpm or more), and the reliability is relatively low. After a long time of use, due to axial load and deflection, The rotating teeth will wear out, and the oil temperature and exhaust temperature will increase, so every tens of thousands of hours of screw compressor operation, the rotor must be repaired to maintain its working performance, while the sliding vane compressor can be used permanently without repairing the rotor Go on.
2. Durable and long life
Always maintain good performance, service life exceeds 100,000 hours, no need to replace the main metal parts, the sliding vane compressor has low speed, low wear, long life and high residual value.
3. Excellent performance and high specific power
Vane compressors use advanced technology and high volume efficiency: users can get more compressed air for the same money. The vane itself automatically compensates the gap with the stator cavity wall by centrifugal force, and there is almost no secondary compression, which is also unmatched by screw compressors.
4. Low maintenance, only 3 kinds of consumables, small oil capacity
Spare parts include: oil, oil core and air filter, air filter and oil are replaced every 2000 hours, oil core is replaced every 10000 hours, oil filter does not need to be replaced. It is more fuel-efficient than other models, and the sliding vane compressor is economical to operate. In most cases, this model can save maintenance costs more than other compressors.
5. Energy saving
Slide vane compressors have standard energy-saving control devices, such as "automatic shutdown/startup" and "automatic no-load", which consume less power during unloading operation.
6. Low noise level
Vane compressors use rotary vane technology, which is extremely quiet. Due to the low noise, the compressor can be installed close to the point of use-no need to equip expensive piping and a dedicated compressor room, which greatly reduces the installation cost. The screw compressor needs a noise-cancelling cover to reduce noise, but this affects the heat dissipation of the body. In the summer, almost all screw compressors of the brand must open the cover to dissipate heat. As a result, the machine room often rumbling and heat waves. The vane compressor itself does not require a cover, and it has an aftercooler driven by the same motor. The body hardly generates heat. The temperature of the discharged compressed air is only slightly higher than the ambient temperature by 4-8°C. The only noise comes from the motor And the cooling fan, but the rotor runs quietly. Especially when the machine is running, there will be no vibration, you can stand a coin on the control box of the fuselage without falling down.
7. Good transmission mode
The compressor and motor of the sliding vane compressor are connected and driven by a maintenance-free coupling, without the need for belts or speed-increasing gears, avoiding deflection tension, the chance of belt slipping and breaking, and there will be no gear wear and bearings Of loss.
8, fanless motor
The motor of the vane compressor drives the compressor and the fan at the same time, reducing the power consumption and the chance of failure.
9. No axial force
Vane vane compressors have only simple rotary motion during operation, and the main shaft is not stressed in the axial direction, and no complicated roller bearings are needed. The screw type air compressor must use roller bearings due to the strong axial thrust of the main shaft. Due to the high speed and radial thrust, the bearing must be replaced regularly after a period of use.
10、Babbitt bearing
Vane compressors use babbitt alloy as bearing bush, with long service life, which can ensure that the entire compressor works for more than 100,000 hours without overhaul and replacement of parts (except filter element and sealing pad, O-ring). Screw compressors use multiple roller bearings, which need to be replaced regularly due to bearing wear. The bearing of the sliding vane compressor can never be replaced.
11, less peripheral control pipeline
Vane compressors use advanced patented technology, oil and gas pipelines are built inside the fuselage, there are few peripheral control pipelines, and there is almost no oil and gas leakage. The screw compressors have many oil and gas pipelines, and the chance of oil and gas leakage increases greatly, and so many pipelines are squeezed in a narrow casing, which is very inconvenient for maintenance.
12. Can be used directly on flat ground
Sliding vane compressor is light weight, such as 2037L is only 680Kg, small size, low center of gravity, can be made into a mobile type after welding the wheel, can be used at the site of use, without complicated pipelines.
13. High purity of gas supply and good quality
The exhaust gas of the vane compressor has less oil and water content, the residual oil content is less than 2ppm, and the difference between the exhaust temperature and the ambient temperature is within 10℃; while the exhaust oil content of the screw compressor is about 3ppm, the difference between the exhaust temperature and the ambient temperature At 12 ℃ ~ 24 ℃.Working principle of sliding vane compressor_Features of sliding vane compressor
Working principle of sliding vane compressor
Air is sucked in through a filter and a regulating proportional valve. The regulating valve is mainly used to regulate the pressure chamber formed by the rotor and slide of the air cylinder. The rotor rotates eccentrically with respect to the cylinder, the valve plate is installed in the rotor groove, and the slider is pushed to the cylinder wall by centrifugal force. The efficient oil injection system can ensure the cooling of the compressor and the minimum loss of lubricant. A thin oil film formed on it can prevent direct contact between metal parts and cause wear. During the compression process, the volume between the slider of the compressor rotor and the cylinder is continuously reduced. The compressed oil-gas mixture is mechanically separated and filtered to separate the oil content in the compressed air below 2PPM. The purified compressed air enters the radiator for cooling, and the condensed water formed after cooling is discharged through the separator of the electronic condensate drainage device.
Working process of sliding vane compressor
As shown in Figure 2 below, the body is provided with an intake orifice (left side) and an exhaust orifice (right side). When the cell volume gradually increases, it meets the suction orifice on the left. Start inhaling the gas until the element volume reaches the maximum, and the inhalation ends when the latter slider (relative to the direction of rotation) that constitutes the element volume crosses the upper edge of the inhalation orifice. Later, the cell volume began to shrink, and the gas was compressed in it. When the previous slide that constitutes the elementary volume reaches the upper edge of the exhaust orifice, the elementary volume begins to communicate with the exhaust orifice, the compression process ends, and exhaust begins. When the latter slide of the elementary volume crosses the lower edge of the exhaust orifice, the exhaust is terminated. After that, the cell volume reaches the minimum value. The rotor continues to rotate, and the cell volume begins to increase again. As a result, the compressed gas remaining in the minimum volume expands. When the previous slider of the cell volume reaches the lower edge of the suction orifice, the expanding cell volume is communicated with the suction orifice again, and gas inhalation is restarted. If the number of sliders is z, during each revolution of the rotor, there are z elementary volumes in turn to perform the suction-compression-exhaust-expansion process. Classification: the first category: oil-dropping vane compressors; the second category: oil-injecting vane compressors; the third category: oil-free vane compressors.
Features of sliding vane compressor
1. High reliability, continuous operation for a long time
Due to the use of rotating sliding vane design, the moving part has only one rotor, low speed (1460 rpm), high reliability, low oil temperature and exhaust temperature during operation, and it can be placed in harsh environmental conditions as usual Work-In this way, the downtime is reduced, which is equivalent to saving a lot of money. The screw compressor has many moving parts, including yin and yang rotors, speed-increasing gears and transmission belts. The speed is high (3000 rpm or more), and the reliability is relatively low. After a long time of use, due to axial load and deflection, The rotating teeth will wear out, and the oil temperature and exhaust temperature will increase, so every tens of thousands of hours of screw compressor operation, the rotor must be repaired to maintain its working performance, while the sliding vane compressor can be used permanently without repairing the rotor Go on.
2. Durable and long life
Always maintain good performance, service life exceeds 100,000 hours, no need to replace the main metal parts, the sliding vane compressor has low speed, low wear, long life and high residual value.
3. Excellent performance and high specific power
Vane compressors use advanced technology and high volume efficiency: users can get more compressed air for the same money. The vane itself automatically compensates the gap with the stator cavity wall by centrifugal force, and there is almost no secondary compression, which is also unmatched by screw compressors.
4. Low maintenance, only 3 kinds of consumables, small oil capacity
Spare parts include: oil, oil core and air filter, air filter and oil are replaced every 2000 hours, oil core is replaced every 10000 hours, oil filter does not need to be replaced. It is more fuel-efficient than other models, and the sliding vane compressor is economical to operate. In most cases, this model can save maintenance costs more than other compressors.
5. Energy saving
Slide vane compressors have standard energy-saving control devices, such as "automatic shutdown/startup" and "automatic no-load", which consume less power during unloading operation.
6. Low noise level
Vane compressors use rotary vane technology, which is extremely quiet. Due to the low noise, the compressor can be installed close to the point of use-no need to equip expensive piping and a dedicated compressor room, which greatly reduces the installation cost. The screw compressor needs a noise-cancelling cover to reduce noise, but this affects the heat dissipation of the body. In the summer, almost all screw compressors of the brand must open the cover to dissipate heat. As a result, the machine room often rumbling and heat waves. The vane compressor itself does not require a cover, and it has an aftercooler driven by the same motor. The body hardly generates heat. The temperature of the discharged compressed air is only slightly higher than the ambient temperature by 4-8°C. The only noise comes from the motor And the cooling fan, but the rotor runs quietly. Especially when the machine is running, there will be no vibration, you can stand a coin on the control box of the fuselage without falling down.
7. Good transmission mode
The compressor and motor of the sliding vane compressor are connected and driven by a maintenance-free coupling, without the need for belts or speed-increasing gears, avoiding deflection tension, the chance of belt slipping and breaking, and there will be no gear wear and bearings Of loss.
8, fanless motor
The motor of the vane compressor drives the compressor and the fan at the same time, reducing the power consumption and the chance of failure.
9. No axial force
Vane vane compressors have only simple rotary motion during operation, and the main shaft is not stressed in the axial direction, and no complicated roller bearings are needed. The screw type air compressor must use roller bearings due to the strong axial thrust of the main shaft. Due to the high speed and radial thrust, the bearing must be replaced regularly after a period of use.
10、Babbitt bearing
Vane compressors use babbitt alloy as bearing bush, with long service life, which can ensure that the entire compressor works for more than 100,000 hours without overhaul and replacement of parts (except filter element and sealing pad, O-ring). Screw compressors use multiple roller bearings, which need to be replaced regularly due to bearing wear. The bearing of the sliding vane compressor can never be replaced.
11, less peripheral control pipeline
Vane compressors use advanced patented technology, oil and gas pipelines are built inside the fuselage, there are few peripheral control pipelines, and there is almost no oil and gas leakage. The screw compressors have many oil and gas pipelines, and the chance of oil and gas leakage increases greatly, and so many pipelines are squeezed in a narrow casing, which is very inconvenient for maintenance.
12. Can be used directly on flat ground
Sliding vane compressor is light weight, such as 2037L is only 680Kg, small size, low center of gravity, can be made into a mobile type after welding the wheel, can be used at the site of use, without complicated pipelines.
13. High purity of gas supply and good quality
The exhaust gas of the vane compressor has less oil and water content, the residual oil content is less than 2ppm, and the difference between the exhaust temperature and the ambient temperature is within 10℃; while the exhaust oil content of the screw compressor is about 3ppm, the difference between the exhaust temperature and the ambient temperature At 12 ℃ ~ 24 ℃.Subscribe to relevant news content?
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