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How to choose a suitable screw air compressor

2022-06-27

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Many friends ask me, how to choose a suitable screw air compressor?
Below, Rongjingsheng Electromechanical will answer some of your concerns.
1. Choose the right air compressor

First of all, users should first calculate the compressed air volume required by their own equipment, and generally reserve a 15%-20% margin on the calculated air volume.

2. Choose the right pressure model

1. The minimum pressure requirement of the equipment + the pressure loss of the pipe network + the pressure loss of the air purification + the pressure difference of about 0.1Mpa is the appropriate pressure you need.

2. Misunderstanding of pressure selection: Many friends think that it is better to choose a machine with relatively high pressure. This is actually a misunderstanding. In fact, all you need is the appropriate pressure calculated from the formula above. For every 0.1Mpa increase in the output pressure of the air compressor, you will waste 7-8% of the electricity.

3. Choose a slightly oil-lubricated or oil-free air compressor

Many users do not understand the difference between micro-oil lubrication and oil-free lubrication screw machines. It is believed that the use of micro-oil screw and precision filter can achieve the level of oil-free machine. In some cases where it is not required, it is possible. However, high-demand occasions, such as precision electronics, medicine, biology, precision spraying, etc., cannot meet the requirements of the process. Moreover, the method of micro-oil screw + filtration is used for processing. Once there is a problem with the oil-gas separator or the compressed air precision filter of the micro-oil screw, there will be a greater risk.

Therefore, when the investment budget is appropriate, choose the appropriate oil-free or micro-oil screw air compressor according to your own process requirements.

Rongjingsheng provides you with a full range of Fusheng brand oil-free screw air compressors, which have obtained the German TUV0CLASS oil-free certification.

3. Choose the right air purification equipment
We know that there is a lot of dust and moisture in the air. According to your own equipment needs, you can choose to use a freeze dryer or an adsorption dryer, and a suitable air precision filter to achieve the level of compressed air suitable for your own process.
4. Choose an air compressor with a higher energy efficiency level
At present, according to the relevant national standards, air compressors have three energy efficiency levels, and there will be an energy consumption difference of about 8% between each energy efficiency level. If the budget is appropriate, it is more energy-saving to choose a product with first-level energy efficiency.
Rongjingsheng Electromechanical provides you with screw air compressors with better energy efficiency standards.
5. Try to choose inverter models
In fact, the compressed air demand of most customer factories is constantly changing. The use of variable frequency air compressors can ensure that as much compressed air as the user uses, as much compressed air is generated, reducing the no-load time of the air compressor, which can also greatly of energy saving.
At the same time, as we mentioned above, what the user actually needs is the pressure (low pressure) when the air compressor is loaded. When the outlet pressure of the air compressor increases by 0.1Mpa, 7-8% more electric energy is consumed, and the frequency conversion air compressor is used. , the output pressure of the air compressor can be accurately maintained within the range of ±0.01Mpa required by customers, which greatly saves energy.