Hướng dẫn điều chỉnh áp suất máy nén khí

The problem of pressure drop of the air compressor will cause extremely harmful consequences as follows:

The air source cannot provide enough for the equipment using compressed air in the system, resulting in reduced productivity.

The compressor has to operate for a longer time, so your compressed air system consumes more electricity. For every 0.1 bar of pressure drop at discharge pressure, energy consumption will increase by approximately 1% of outlet flow.

Therefore, overcoming the problem of pressure drop for the air compressor is a problem that needs to be done quickly.

Why is it necessary to adjust the air compressor pressure?

During the operation of your high-pressure compressed air pump, it is inevitable that unexpected incidents such as compressed air pressure will be too high or suddenly lowered. This will have serious consequences that affect the productivity of the entire system.

3 main causes affecting compressed air pressure:

Compressed air loss on compressed air ducts. Due to improper design of your compressed air pipeline or during operation, the hose may leak, resulting in a decrease in compressed air pressure. Therefore, you need to have a plan to design compressed air pipelines to be most effective.

There are too many devices that use compressed air in the system, but you choose an air compressor that does not meet the compressed air flow source for those systems.

You use an old air compressor, so it cannot meet the compressed air needs of the entire system.

Therefore, adjusting the compressed air pressure in the air compressor system is a must-do at this time to best meet the needs of compressed air of the entire system.

Detailed instructions for adjusting pressure through relays

The air compressor's relay is responsible for protecting the air compressor, automatically disconnecting and turning on the machine when the device has provided enough pressure for the system or in case the amount of gas in the tank is lower than the level. need to use. The main pressure relay is a device that controls and contributes to pressure protection in the pipeline.

This device is used to convert pressure signals into switching signals of electrical contacts (which are ON/OFF buttons), this will help users to be active in their work. pressure regulation of the compressed air system.

Pressure relay parts are divided into many types and have many different sizes. The purpose of this device is to give users the most convenience and safety. That is why the relay is one of the indispensable parts in the air compressor in regulating pressure. compressor.

You should equip yourself with the knowledge of adjusting the pressure relay for your screw or piston compressor. This will help the device work stably and efficiently. Instructions to adjust pressure by relay in just 3 minutes:

1. For no-load pressure regulation:

Proceed to loosen the upper locking nut.

Proceed to turn the bolt to adjust the no-load pressure in the same direction as clockwise to increase the no-load pressure and vice versa to reduce the no-load pressure.

Tighten the upper locking nut.

2. For load pressure regulation:

Proceed to loosen the nut on the lower buckle.

Use the nut to adjust the differential pressure clockwise to reduce the pressure or turn counterclockwise to increase the pressure.

Tighten the lower locking nut.

Besides, this also has limitations such as:

Causing the air compressor to operate continuously with a higher pressure than the manufacturer's recommendation, this will cause the machine to not have a guaranteed life.

The system consumes more power than usual, which will cost you a significant amount of extra power for this part.

Things to pay attention to when adjusting the pressure relay for the compressor:

The components and parts involved in the pressure regulation of the air compressor: the cylinder part, the slide valve part are connected to the counterweight by a connecting rod, this pressure regulating element will also be connected to the system. The gas supply system is also connected to the presser by two different installed pipes.

Consumption of compressed air by load components and compressor capacity according to manufacturer's specifications. Between these two values ​​there is a very close relationship as follows: the gas consumption of the entire system is equal to the capacity of the machine, the pressure value will reach a value equal to the rated value. the level given by the manufacturer, and vice versa if the compressed air consumption of the system is greater than the pressure of the machine, the pressure value will be reduced.

The drive system of Piston compressors usually uses a synchronous motor or an asynchronous motor designed with a rotor with a constant rotational speed, so that you adjust the pressure of the machine. affected by the opening and closing of the exhaust valve assembly on the body of the machine

For air compressors using 220V power, the air compression relay will be adjusted to a pressure of about 8kg, and for air compressors using 380V power, the air compressor relay will is adjusted to a pressure of 12kg. However, these also depend on the source of compressed air to be used.

If you want to adjust the automatic disconnection of the relay, you first need to open the relay cover, turn the relay clockwise if you want to increase the pressure and proceed to turn the relay counterclockwise to have compressed air pressure can be reduced.

To completely overcome the limitation of pressure regulation, you need to:

Choose to buy an air compressor suitable for the power consumption of the entire system.

Carry out regular compressor maintenance to ensure the best possible performance.

Maintain compressed air pipelines such as air compressor steam lines, self-retracting compressed air pipes to avoid loss of compressed air causing the compressed air system to drop pressure.

Choose the size of the pipe to match the air flow in the system.

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Hopefully, through the instructions to adjust the air compressor pressure that we have shared above, you have been equipped with enough knowledge to use the air compressor more effectively and safely.