UTC IC Integrated Circuit Chip UTC6651

08/17/2020

Tubular heat exchanger tube bundle failure and flange leakage

1. Tube bundle failure 　　 1. Corrosion and abrasion of the tube bundle cause tube bundle leakage or scale in the tube bundle causes blockage and malfunction

07/13/2020

Danfoss commercial compressor nameplate changes

Danfoss 40 hp big blue compressor Today I will introduce to you Danfoss CH485 compressor, CH485 40 ton compressor is not only compact but also integrates many innovations. The CH485 compressor has the following characteristics in terms of protection level and improved efficiency:

09/03/2020

The compressor air filter has many knowledge

1. Factors affecting air filter of air compressor 　　The quality of lubricating oil has deteriorated. The poor filtration accuracy of the air filter will cause a large amount of dust to enter the lubrication system, resulting in a decrease in the quality of the lubricating oil,

07/07/2020

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

08/18/2020

Refrigerant filling method of water-cooled screw chiller

The refrigerant plays a vital role in refrigeration equipment. This is something that everyone in this industry needs to understand. What are the refrigerant charging methods for water-cooled screw chillers?

09/10/2020

Working principle of scroll compressor

Features of scroll refrigeration compressor 1. The pressure difference between two adjacent chambers is small, and the leakage of gas is small.

08/11/2020

The relationship between refrigerant and water in explosion-proof chemical air conditioning

Compared with ordinary air conditioners, the good explosion-proof performance of explosion-proof chemical air conditioners is an important factor in the selection of enterprises.

06/14/2020

Analysis of common failure causes of totally enclosed refrigeration compressor

Analysis of common failure causes of totally enclosed refrigeration compressor Running end (R), starting end (S), common end (C), the resistance between RS is greater than that between SC and RC. The resistance between RS is equal to the resistance betweﰸ2䀀
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08/24/2020

Reason analysis of refrigeration compressor can not start or stop soon after start

1) First check the main circuit. Whether the power supply has power, whether the voltage is normal, whether the fuse has been blown due to starting overload, whether the air switch has tripped, whether the switch contacts are good, and whether the power supply is missing phase. Observe the voltmeter and ammeter when starting. When the small-scale refrigeration and air-conditioning equipment does not have an ammeter or electric meter, a multimeter or electric pen can be used to check the power supply. When the power supply voltage is too low, the compressor will not start.

05/06/2023

How Water Source Heat Pumps Work

A heat pump is a device that transfers thermal energy from a low-grade heat source to a high-grade heat source. Heat pumps, driven by electricity, usually first obtain low-grade heat energy from natural air, water or soil, and then provide high-grade heat energy.