What are the reasons for the insufficient working pressure of the screw machine?

Sometimes the operator will find that when the motor is running and the air compressor is inflating the air tank, the air pressure gauge indicates that the air pressure does not reach the starting pressure value. That is, the performance of insufficient pressure of the air compressor, why does this imagination occur? The engineer of the air compressor told us that this is caused by insufficient pressure, and if you find that your screw air compressor is not under air pressure, you can check it immediately.

Here are a few possible causes of this failure and how to fix it: It could be that the barometer is malfunctioning. Observe the barometer, if the indicated pressure is insufficient, you can let the motor run at medium speed for a few minutes, the pressure still does not rise or rises slowly, when the brake pedal is stepped on, the deflation sound is very strong, indicating that the barometer has been damaged, then the barometer should be repaired or replaced.

The transmission belt between the air compressor and the motor is too loose and slippery, or the pipeline between the air compressor and the air storage tank is broken or the joint is leaking. Check whether the air compressor belt is too loose, from the air compressor to the air storage tank, to the control valve inlet pipe, and whether there is any loose, broken or leaking place. Too much sediment in the water separator, line, or air filter is clogged.

The oil-water separator and air filter and pipes should be checked for too much dirt that causes clogging, and if it is blocked, the dirt should be removed immediately.

The air compressor exhaust valve plate is not tightly sealed, the spring is too soft or broken, the air compressor cylinder head bolt is loose, and the sand hole and cylinder head gasket are damaged and leak. Check whether the exhaust valve of the air compressor is leaking, whether the spring is too soft or broken, etc., and replace or repair the damaged parts according to the faults found. The method of air compressor oil filter fault treatment, oil filter refers to the oil and air compression, separation, cooler cooling, and then back to the oil and gas barrel, before returning to the oil and gas barrel through the oil filter filter to filter out impurities, to ensure that no impurities enter the head, in order to prevent the head from too many impurities and blockage, etc., this is the role of oil filtration, for the treatment of oil filter failure air compressor maintenance technician summarized the following points:

First check whether the machine can operate normally or if there is an abnormal phenomenon, listen to the sound of the oil filter, if there is no noise, the oil filter is normal; If the oil filter makes an abnormal sound, then at this time, stop the machine and then remove the oil filter to detect the oil filter; The oil filter may have accumulated a lot of impurities when filtering oil and gas impurities, so it should be replaced once after a period of time; To clean the oil filter, it is necessary to clean it with a special solution, so as to ensure that the oil filter can be cleaned; Screw air compressor is a common type of air compressor, screw air compressor failure will affect its service life and the personal safety of operators, so in industrial production, it is very important to understand the failure of screw air compressor. Screw air compressor fault phenomenon: the unit has large fuel consumption or large compressed air oil content.

Hello, the reason why the air pressure of the screw air compressor is not enough: 1. The air consumption is large, and the air supply of the air compressor is insufficient, resulting in low-pressure operation. 2. The inlet valve is faulty, the inlet valve is not fully opened during loading, and the exhaust pressure is low due to insufficient air intake.

3. Perforation of the cooler, resulting in compressed air entering the cooler and loss, resulting in low-pressure operation (in this case, water-cooled models are more common, and air-cooled models are generally rare).

First, the equipment efficiency is low.

The service life of the equipment is too long, and the gas volume is unreasonable with the terminal and other equipment, which can only meet the basic needs of production; When the air compressor adjustment mode is backward and there is no centralized control, and the air consumption changes randomly, the air compressor is seriously wasted due to unloading; The gas consumption of terminal equipment is unreasonable and inefficient, and there is waste of equipment gas.

Second, the air supply pressure is unreasonable.

Each production link has different requirements for machine gas volume and pressure. Usually the screw air compressor uses high-pressure air supply and mechanical pressure reducing valve to meet different pressure needs, although this method is simple, but there is a disadvantage, that is, a lot of energy is wasted on the valve.

In addition, when the change of gas consumption on the demand side causes random fluctuations in the pressure of the pipeline network, in order to avoid the frequent start and stop of the unit, it is necessary to set a wide range of pressure changes, resulting in large fluctuations in the outlet pressure of the air compressor and increasing the operating energy consumption of the air compressor system. In order to reduce energy consumption and improve the operating efficiency of the unit, we usually recommend a hierarchical planning of the air supply pressure.

3. Waste of energy.

There are two main types of energy waste: high no-load energy consumption, high climbing energy consumption, and large leakage.

Fourth, the traditional management mechanism.

The company's strict assessment of equipment management personnel has led to the habit of "saving" in the process of work. This habit of excessive economy can lead to insufficient gas supply, which cannot meet production requirements and affect production schedules.

2.Blockage of oil and gas separator: Due to the presence of some impurities in the oil circuit system, after the filter element works for a period of time, the blockage phenomenon will occur, which will increase the resistance of the compressed air through the filter element, affecting the normal operation of the unit.

Therefore, the operator should replace the filter element in time according to the signal displayed on the monitor panel. 3.Air filter clogged:

The purpose of the air filter is to filter the intake air and ensure that the air entering the air compressor is clean. If the air filter element is severely blocked, it will affect the air intake of the unit. Therefore, the filter element must be replaced in time.

4.Failure or damage to the pressure regulator: The function of the pressure regulation system is to automatically adjust the compressor according to the amount of gas consumed by the customer, so as to achieve a balance between supply and demand.

Therefore, it is necessary to replace the damaged pressure regulator in time and adjust the failed pressure regulator in time. 5.The intake valve cannot be fully opened:

The function of the intake valve is to control the amount of air intake. When the unit is running at full load, the inlet valve is fully open. When the user's required air consumption is reduced, the air volume adjustment device inputs compressed air to the intake valve to make the air intake small.

6. The air release valve is faulty (it cannot be closed when loading); 7. Control pipeline leakage: Air leakage of air compressor control pipeline will make the inlet valve unable to open all so that the load of the unit cannot be full. 8. The pressure switch is set too low (relay control unit); 9. Pressure gauge failure (relay control unit); Replace the pressure gauge.

10. Pressure switch failure (relay control unit); Repair and, if necessary, replace the pressure switch.

1. The actual gas consumption is greater than the output of the unit; 2. The air release valve is faulty (it cannot be closed when loading); 3. The inlet valve is faulty and cannot be fully opened; 4. The minimum pressure valve is stuck, and it needs to be cleaned, readjusted or replaced with new parts; 5. There is leakage in the user pipe network;

6. The pressure switch is set too low (relay control unit); 7. Pressure sensor failure; 8. Pressure gauge failure (relay control unit); 9. Pressure switch failure (relay control unit); 10. Air leakage from the input hose of the pressure sensor or pressure gauge.

Hello dear, the air compressor may be a little difficult to start for the following reasons: 1. Check whether the fuse is burned and fused, resulting in the circuit not working and unable to power on. 2. Motor failure.

The insulation layer is aging or the temperature is too high, and the insulation layer is melted, so that the insulation effect is insufficient, and leakage occurs. 3. Motor stall and overcurrent. The lubricant is not enough, or there is a foreign object stuck in the head, so that the current is too large and cannot be started.

4. PLC control failure. The program may have wrong and garbled codes; Or the electrostatic answer car failure, so that the component circuit failure. 5. The contactor or inverter is burned.

The internal components are in poor contact and work, and the electric shock melts, and there is an "arc". 6. Sensor failure. The pressure sensor or temperature return sensor may not be in good contact, the wiring is reversed or even damaged, which will cause it to fail to start.

At this time, you should contact the professional after-sales personnel of Qingshishi for maintenance matters.

Summary. 1. The intake valve and loading relief valve are not sensitive enough.

In order to maintain sufficient pressure during the operation of the equipment, the operation of the inlet valve and the loading relief valve must be sensitive enough. If the intake valve and loading relief valve are not sensitive enough, it will also have a great impact on the pressure of the energy-saving air compressor.

2. If there is a problem with the pressure switch, for example, if it fails, it will directly lead to insufficient pressure of the air compressor, so if this situation occurs, it should be replaced in time.

3. The aging or failure of the air compressor is also an important reason for the lack of pressure of the air compressor, because the core of the air compressor is the machine head, and this part is the place where the pressure is generated. Therefore, if the head fails, the pressure of the air compressor will also be affected.

What is the total differential pressure of the screw air compressor.

1. The intake valve and loading relief valve are not sensitive enough, and the equipment must maintain sufficient pressure during operation, so the operation of the inlet valve and loading relief valve must be sensitive enough. If the intake valve and loading relief valve are not sensitive enough, it will also have a great impact on the pressure of the energy-saving air compressor. 2. If there is a problem with the pressure switch, for example, if it fails, it will directly lead to insufficient pressure of the air compressor, so if there is a situation of this cherry feast, it should be replaced in time.

3. The aging or failure of the spine dust head is also an important cause of insufficient pressure of the air compressor, because the core of the air compressor is the head, and this part is the place where the pressure is generated. Therefore, if the head fails, the pressure of the air compressor will also be affected.

Hello. The cause of the fault has been sent to you.

Often, high air pressure in a screw machine can be caused by a malfunction of valves, regulators or compressors within the system. In order to reset the fault, you can try the following steps:1

First, check whether the valve and regulator are opened properly and there is no abnormality. If an abnormality is found, the Circle can be used to try to adjust the valve and regulator to reset. 2.

If the valve and regulator are normal, you can turn off the machine and cut off the power for about 30 minutes, and then turn it back on again to see if you can reset the fault. 3.If none of the above methods work, a more in-depth investigation and overhaul of the screw machine may be required.

It is recommended to contact a professional technician for repairs.

Hello dear, screw machine is a commonly used compressor, when its air pressure is too high, it needs to be reset to solve the fault. The following are the steps to reset the screw machine with high air pressure: first turn off the power of the screw machine and wait a few minutes to ensure that the machine stops completely.

Open the machine's control panel to see the machine's faults**, usually represented as a number or letter combination. According to the description of the fault**, determine the specific cause of the failure. If the fault is caused by high air pressure, it needs to be dealt with accordingly.

Locate the reset button of the screw machine, usually located in a corner of the control surface hole, press this button and wait for the machine to restart. If there is still a fault after resetting, it is recommended to contact a professional Wiener repair personnel for repair and maintenance. It should be noted that resetting when the air pressure of the screw machine is too high requires caution to ensure that the correct steps are followed to avoid causing more damage.

At the same time, regular maintenance and maintenance of the screw machine can effectively reduce the probability of failure.

Kiss! Hello, happy to answer your <>

The solution to the low suction pressure of the pro-screw compressor is as follows: Solution: clean the air filter or replace the filter element, and do a good job in the maintenance of the unit regularly.

2. The filter element of the oil-gas separator is blocked, resulting in low exhaust volume. Regularly replace the filter element of the oil-air separator 3, and the failure of the pressure regulator leads to a reduction in the exhaust volume. 4. The failure of the inlet valve leads to insufficient exhaust and low pressure.

Regular inspections find problems and timely repairs. 5. Pipeline leakage. Check the pipelines, and if any leaks are found, they should be dealt with in time.

In the 30s of the 20th century, when the Swedish engineer Alf Lysholm was researching gas turbines, he hoped to find a compressor with a rotary motion of the wheel, requiring its speed to be much higher than that of a piston compressor, so that it could be directly driven by a gas turbine and would not surge. To achieve the above goals, he invented the screw compressor. Theoretically, screw compressors have the characteristics they need, but they do not find applications in this field because they must have a very large displacement to meet the requirements of gas turbine operation.

Nevertheless, Alf Lysholm and his company, SRM in Sweden, continue to conduct in-depth research on the application of screw compressors in other fields. Hope mine can help you <>

Do you have any other questions?