What are the advantages of the compressor of the screw industrial chiller?

At present, the compressors of screw industrial chillers are mostly selected from Taiwan Hanzhong or German BITZER screw compressors, and are increasingly recognized by the market for their remarkable advantages. With the development of the national economy and the improvement of the design and manufacturing level of screw compressors, the performance index and reliability of screw compressors will be greatly improved, so the market of screw chillers will also be more and more widely.

In fact, everything has two sides. Since it has its unique advantages, there will definitely be shortcomings. Today, Ice Ai Refrigeration shares the advantages and disadvantages of screw industrial chiller refrigeration compressors.

First, the advantages of screw compressor

1. Less parts, less wearing parts and high reliability;

2, whether it is operation or post-maintenance, it is very convenient;

3. There is no unbalanced inertial force, the operation is smooth and the vibration is small;

4, with the characteristics of forced gas transmission, the displacement is almost independent of the exhaust pressure, the working conditions adaptability;

5. The rotor tooth surface of the screw compressor is actually made of a gap, so it is not sensitive to the wet stroke and can withstand liquid hammer;

6, the exhaust temperature is low, can be operated under higher pressure ratio conditions;

7. It can realize stepless adjustment of cooling capacity, adopting slide valve mechanism, so that the cooling capacity can be adjusted steplessly from 15%-100%, saving operating costs;

8, easy to achieve automation, can achieve remote communication,

Second, the shortcomings of screw compressor

1. The rotor tooth surface is a space curved surface. It needs to be processed on expensive equipment by using special props. The machining precision of the body parts also has high requirements, and high-precision equipment must be used.

2. Since the volume between the teeth is periodically connected with the suction and exhaust ports, the compressor noise is high;

3. Due to the limitation of rotor stiffness and bearing life, the internal functions of the compressor depend on the gap seal, so the screw compressor can only be used in the medium and low pressure range, and can not be used in high pressure applications;

4. Due to the large amount of fuel injection, the oil treatment system is complex, so there are many auxiliary equipments for the unit;

5. The screw compressor relies on the gap sealing gas and does not have superior performance in a small volume range;

Screw industrial chiller is a common refrigeration equipment in petrochemical, electronic appliances, food and beverage, ink printing, textile leather, pharmaceutical and pharmaceutical, construction, etc. It has high power, stable operation, fast cooling, affordable price and durability. Etc.