What is the reason for the frequent depressurization of the single screw compressor fan?

1. Reasons for frequent loading and unloading of air compressors.

1. Control the cause.

As we all know, the exhaust pressure of the air compressor is the main basis for controlling the loading and unloading of the air compressor. If the difference between the two setpoints becomes smaller, it may lead to frequent loading and unloading of the unit. When the loading pressure value of the unit increases, the unloading pressure value decreases; Or simply the increase of the loading pressure value and the decrease of the unloading pressure value will make the loading and unloading cycle of the unit shorter, that is, the closer the loading and unloading pressure value of the unit is to the constant gas consumption, the more frequent the loading and unloading, and the greater the hidden danger of the safe operation of the equipment.

2. System reasons.

If the setting value of the loading and unloading pressure of the unit is normal, it can be considered whether there is pipeline blockage between the outlet of the air compressor and the gas storage tank. If the pipeline is blocked but not completely blocked, the compressed air circulation will be seriously blocked, and the gas pressure between the blockage point and the air compressor is difficult to remove quickly during the loading of the air compressor, resulting in the unloading pressure value reached in a short time and unloading. However, due to the limited air volume between the blockage point and the outlet of the air compressor, coupled with the system loss (such as filter drainage with air, refrigeration dryer regeneration) and a small part of the circulation to the air storage tank, the pressure quickly drops to the loading pressure value, and the air compressor is reloaded, and so on.

Second, the air compressor frequent addition and unloading processing method.

1. Control the treatment method of frequent loading and unloading caused by reasons.

This reason can be directly seen through the pressure display of the unit when loading and unloading, if there is indeed a change, it can be solved by ** calibration or remove the pressure sensor for detailed detection and re-installation of the sensor. Of course, it is also common for the measurement error caused by the blockage of the pressure sensor measurement line, and our usual practice is to use compressed air to purge the sampling line.

2. The treatment method of frequent addition and unloading caused by system reasons.

The cause of the system is more complicated, and it can be judged by the difference between the outlet pressure of the air compressor and the outlet pressure of the refrigeration dryer. Due to the large number of equipment in this pipeline, after long-term maintenance and observation, it is found that the equipment that is often easy to be blocked is: 1) oil removal and water removal filter; 2) The internal adsorption dryer of the refrigeration dryer A and B inlet switching valves; 3) The temperature regulation of the pre-cooler and evaporator in the refrigeration dryer is not good; 4) The one-way valve at the outlet of the dust removal filter is installed incorrectly or the valve stem and valve body fall off.

During the long-term operation of the air compressor, there are often some problems and failures, if these problems or failures cannot be solved in time, it is easy to cause the efficiency of the air compressor to be reduced and the equipment damaged. In particular, the frequent loading and unloading of air compressors not only shortens the life of equipment such as solenoid valves, air compressor entrance doors and unloading valves, but also seriously threatens the safe operation of the entire unit.

1. Irregular dust blowing and replacement of the air filter element will cause: the air filter element will be blocked, the air intake volume will be reduced, and the exhaust volume will also be reduced. Irregular replacement will cause the negative pressure to increase the pressure breakdown, pollutants into the machine, clog the oil filter, oil separation core, cooling lubricating oil deterioration, and the main engine wear.

2. The oil filter is replaced from time to time: with the increase of the pressure difference between the front and rear, the oil is reduced, and the exhaust temperature of the main engine rises and stops, if the pressure difference between the front and rear is too large and the breakdown, the pollutants enter the machine, the oil separation core is blocked, and the main engine is worn.

Hello, there are two reasons, 1It is because your gas consumption increases, the power of the air compressor is small, and the gas volume generated is insufficient, so it will start frequently. 2. That is, the maximum pressure and minimum pressure settings of your work are relatively small, and the production line is easy to start frequently with gas, so it is recommended that you adjust the pressure value.

There is also a small air compressor, and increasing the gas storage tank is a palliative rather than a cure.

Turn that allowable pressure up a little bit because it's automatic. When you reach the set pressure, use the automatic stop. Also, did you release any water? After a long time, the water should be released.

Is it gas ** not up? It may be just because the air compressor is small, and many manufacturers that expand production will encounter such problems.

Summary. Hello Dear We are happy to answer for you. What happens to the frequent loading and unloading of screw air compressor?

It has been found for you: the frequent loading and unloading of screw air compressors is generally caused by the following reasons: First, when the motor runs at a constant frequency, the panel shows that the pressure fluctuates up and down.

If this is the case, a different pressure sensor will solve the problem. Second, the value of the air supply pressure and the unloading pressure is too close, when the screw machine reaches the air supply pressure, if the air consumption suddenly decreases, the inverter has no time to control the motor to slow down, which will cause excessive gas production, thus causing the situation of unloading. In this case, we set the difference between the supply pressure and the unloading pressure larger, usually more than or equal to kilograms.

The third type of gas consumption is unstable, and the gas consumption suddenly increases or decreases a large amount, and the air supply pressure will fluctuate at this time. The inverter controls the motor to change the frequency output to maintain air stability. However, when the speed change speed of the motor cannot keep up with the speed of the gas consumption at the end of the air consumption, it will cause the pressure of the machine to fluctuate, and then there may be a situation of loading and unloading.

Hello Dear We are happy to answer for you. What happens to the frequent loading and unloading of screw air compressor? I've found it for you:

The frequent loading and unloading of the screw clump air compressor is generally caused by the following reasons: First, when the motor runs at a constant frequency, the panel shows that the pressure fluctuates up and down. If this is the case, a different pressure sensor will solve the problem.

Second, the value of the air supply pressure and the unloading pressure is too close to Zheng Xiaoying, when the screw machine reaches the air supply pressure, if the gas consumption suddenly decreases, the inverter has no time to control the motor to slow down, which will cause excessive gas production, resulting in unloading. In this case, we set the difference between the supply pressure and the unloading pressure larger, usually the difference is greater than or equal to kilograms. The third type of gas consumption is unstable, and the gas consumption suddenly increases or decreases a large amount, and the air supply pressure will fluctuate at this time.

The inverter controls the motor to change the frequency output to maintain air stability. However, when the speed change speed of the motor cannot keep up with the speed of the gas consumption at the end of the air consumption, it will cause the pressure of the machine to fluctuate, and then there may be a situation of loading and unloading.

Kiss your early turn: Solution: First, don't use multiple devices at the same time, you can turn on the gas equipment one by one.

Second, adjust the frequency conversion speed of the inverter to increase the speed of change of the output gas volume, and adapt to the change of gas consumption. Third, a larger gas tank can be used for buffering. <>