How to adjust the air volume of the air compressor

This article summarizes how to adjust the air volume of the air compressor, first summarizes how to detect the air volume of the air compressor, and then summarizes how to adjust the air volume of the air compressor, hoping to help you.
This article summarizes how to adjust the air volume of the air compressor, first summarizes how to detect the air volume of the air compressor, and then summarizes how to adjust the air volume of the air compressor, hoping to help you.
How to check the air volume of the air compressor:
For how to detect the air volume of the air compressor, there are four methods to detect, the following is a simple example:
1. Method – check the current air compressor air volume
2. Estimation method (V=V gas consumption of current machinery and equipment + V gas consumption of post-processing process machinery and equipment + V leakage + V storage)
3. Identify the need to boost air compression
4. The influence of system software steam leakage
How to adjust the air volume of the air compressor:
1. Speed ​​ratio adjustment
Rate regulation is the adjustment of the displacement by changing the compressor speed. The advantage of this type of regulation is that the gas volume is continuous, the specific function loss is small, the pressure ratio of the compressor will not change, and the compressor does not need a special regulating organization; but it is only widely used in the compressor of gas turbines and steam turbine generators. If the controller is an electric motor, it needs to be equipped with a frequency converter. Due to the high power, the high-voltage frequency converter is more expensive and requires a lot of maintenance. To maintain this, this method is rarely used for motor-driven reciprocating compressors. In addition, speed regulation may have a negative impact on the compressor operation, such as valve vibration and component wear. Vibration enhancement, insufficient lubrication, etc., also limit the wide application of this method.
2. Press open the intake valve to adjust
According to the length of the whole process of reducing the intake valve at one time, this method is divided into two methods: full stroke arrangement to press the intake valve and partial stroke arrangement to press the intake valve to open. The adjustment of the open intake valve is arranged for the full stroke, and during the intake process, the gas is drawn into the cylinder. In the reduction stage, because the intake valve is completely opened, all the inhaled gas is also released to the cylinder. Assuming a compressor with a single-stage double-acting cylinder, if there is only one intake valve on one side of the piston rod, the air volume will also be reduced by 50%. If both sides are opened at the same time, the exhaust volume is zero. Therefore, the device can realize 0, 50% and three-level adjustment of gas volume. It can be seen that the adjustment range of the full-stroke arrangement to open the intake valve is relatively large, and it is suitable for rough adjustment. The basic principle of the adjustment of the partial stroke arrangement to open the intake valve is similar to that of the full stroke arrangement to open the intake valve. Because the success of downsizing is basically positively related to the reduction in displacement, the operational rationality is still very high
3. Bypass valve adjustment
The exhaust pipe is connected with the intake port according to the bypass pipe and the intake valve. When adjusting, just open the intake valve, and part of the exhaust pipe will return to the intake port. This kind of adjustment method is flexible and smooth, and the control system adjusts with high precision. But it is less plausible due to all the compressed power dissipation light of the unnecessary vapor. Therefore, this method is suitable for occasions where the adjustment or adjustment force is small.
4. Remaining cavity adjustment
On the cylinder of the compressor, there is no certain inner cavity except for the fixed clearance capacity. When adjusting, connect the individual studio of the cylinder, increase the void capacity, reduce the capacity index, and reduce the displacement. This is how the void cavity adjustment works. According to the difference method of subsidy capacity connection, it can be divided into continuous. Grade classification adjustment is generally used for large and medium-sized processing technology compressors. The main disadvantages of this type of adjustment method are: the general manual adjustment has a slow response speed and generally needs to be used in conjunction with other adjustment methods. Although the method of connecting the variability to supplement the void capacity can be adjusted within the range of 0% under normal circumstances, the reliability index is poor, there are many consumable parts, and the maintenance is difficult.


Post time: Aug-05-2022