LEEMIN Filter LX-545B-10

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth

09/06/2020

What are the requirements of modern industry for oil-free air compressors

After the air is mechanically compressed, it becomes compressed air. The equipment used to produce compressed air is usually called an air compressor. Compressed air is an indispensable pneumatic energy source in people's production and life.

06/14/2020

What cooling methods do you know Come chat!

What cooling methods do you know? Come chat! 1. Steam compression refrigeration Principle: In the vapor compression refrigeration cycle system, the compressor sucks low-temperature and low-pressure refrigerant vapor from the evaporator

09/28/2022

What is a Hydraulic Vane Pump?

With the development of hydraulic technology, vane pump, as an indispensable power element, has been more and more deeply penetrated into various fields such as hydraulic systems

06/14/2020

Failure analysis and analysis of other common failures of screw refrigeration compressor

The compression ratio of the screw machine is too large: it proves that this system completely deviates from the design value. The main phenomena are that the temperature of the exhaust temperature is too high, the suction pressure is too low, and the tem器2䀀
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07/16/2020

Working principle of scroll compressor

1. The pressure of the scroll compressor is generated due to the interaction between the scroll disks that make planetary motion. When one of the scroll disks makes planetary motion, the gas enters from the outer opening.

08/15/2020

Comparison of ground source heat pump and air source heat pump

1. Ground source heat pump technology 　　The ground-source heat pump central air-conditioning system is a heating and air-conditioning system composed of rock soil,

06/14/2020

Brief introduction of magnetic suspension refrigeration compressor technology

Magnetic bearing is a high-tech product. Due to its high price, it was only used in aerospace engineering in the past. In 1993, Australia Multistack established a TURBOCORRD department, specializing in the application of magnetic bearings in refrigerationﰸ2䀀
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08/18/2020

Common faults and maintenance methods of air-cooled chillers

Air-cooled chillers are installed outdoors without any obstruction, and are easily affected by outdoor light. So how to maintain good ventilation, good environment and space has a key impact on the cooling effect of the chiller.

06/21/2020

Common failure and analysis of centrifugal air compressor

Common failure and analysis of centrifugal air compressor 1. Abnormal vibration and noise: ① Misalignment ② The compressor rotor is unbalanced ③ The impeller is damaged ④ The bearing is abnormal ⑤ The coupling is faulty or unbalanced ⑥ The sealing ring is bad ⑦ The oil pressure and oil temperature are abnormal ⑧ There is dirt in the oil Clean, wear out the bearing ⑨ Surge ⑩ The stress of the gas pipeline is transmitted to the casing, which causes misalignment ⑪ There is a machine working near the compressor<img src="{{media url=&quot;Common_failure_and_analysis_of_centrifugal_air_compressor.jpg&quot;}}" alt="" />