Nidec Fan C34447

07/18/2020

Fault analysis and treatment of excessive oil consumption of the refrigeration compressor of piston chiller

Commonly used chillers are divided into piston type, screw type, centrifugal type, and vortex type chiller according to the type of refrigeration compressor used. Their evaporators and condensers generally use shell and tube heat exchangers, the throttling device uses thermal expansion valves, the refrigerant is freon

08/05/2020

Do you know all the protective devices for air-cooled chiller refrigeration compressors

In order to prevent the air-cooled chiller from running uninterruptedly for 24 hours, causing the compressor to operate under high load, the electromagnetic switch is not good, the overcurrent caused by the shaft holding,

08/26/2021

What is a Knock Sensor?

Cars have an airbag that everyone doesn't want to use because it plays a role in car collisions, but the airbag is on standby all the time, with the effect of a knock sensor

09/14/2020

Maintenance steps and methods of G series oil and gas separator

1. Disassemble all connecting pipelines connected to the cylinder head and clean the surface dust. 2. Take out the oil return pipe (air compressors below GA90 cannot be removed).

06/24/2020

The reason why the air conditioner is not cooling

Occasionally encounter the problem that the air conditioner does not cool in life. Don't worry at this time. The reason for the air conditioner not cooling is not very complicated. After understanding the reason for the air conditioner not cooling, you can solve the problem by taking the right medicine.

08/17/2020

Analysis of 4 major reasons for the high energy consumption of building HVAC systems

1. Analysis of the high energy consumption of the building HVAC system 　　 The reasons for the high energy consumption of building HVAC systems are mainly reflected in the following aspects:

09/04/2020

How many do you know about the essential nine almighties in the bearing industry

1. Installation of bearing 　　 Whether the bearing is installed correctly or not affects the accuracy, life and performance. Therefore, the design and assembly department must fully study the bearing installation. Hope to install in accordance with operating standards. The work standard items are usually as follows:

07/08/2020

Advantages and disadvantages of Hitachi central air conditioning

Advantages and disadvantages of Hitachi central air conditioning Hitachi Central Air Conditioning has always been at the forefront of air-conditioning technology, advocating the development and transformation of air-conditioning technology with the height of giants. Advantages: 1. Patented scroll compressor technology, as early as 1983, Hitachi invented the world's first scroll-type air-conditioning compressor and has a patent; and in 2003, Hitachi launched the industry's first internal oil separation function The new high-pressure cavity scroll compressor further improves the efficiency and reliability of the compressor and effectively increases the service life of the air-conditioning host.

06/14/2020

Danfoss cocuses on providing energy efficient, sustainable and smart refrigeration compressors for a varied range of commercial applications such as cold rooms

07/21/2020

How to protect the refrigeration compressor, you must master the following knowledge!

When the compressor is running, some abnormal conditions may occur, such as: exhaust pressure is too high, suction pressure is too low, oil pressure is insufficient, motor is overheated, excess liquid enters the cylinder, etc. In the event of an abnormal situation, the compressor will be damaged if there is no protective measure.