Danfoss Compressor SM084W9VI

09/06/2020

Basic knowledge of PID regulation and PID

What is PID regulation and the basic knowledge of PID At present, the level of industrial automation has become an important indicator of the modernization level of various industries.

08/07/2020

How to troubleshoot the icing of the evaporator of the air conditioner

Small split air conditioners often have icing on the indoor unit evaporator in summer. Why does it freeze and how to eliminate it? Here are the following:<br></br> 　　 1. Insufficient refrigerant<br></br>

06/14/2020

Air-conditioning outside machine caught fire early in the morning, the police reminded to pay attention to the age of electrical appliances

Air-conditioning outside machine caught fire early in the morning, the police reminded to pay attention to the age of electrical appliances

08/16/2020

The experience of building a small cold storage correctly, come and learn!

Relying on a series of advantages such as short installation period, fast and efficient use, and reasonable price, the construction of small cold storage has quickly been recognized by the market and has been widely used in many industries.

08/21/2020

Why the air-conditioning supplyreturn water temperature is 7℃-12℃

Reason analysis of 7 degree water supply: 　　 1. Starting from the refrigeration unit, the refrigerant evaporates in the evaporator and absorbs heat to cool the secondary side water. If the evaporation temperature is too low, it will cause frost on the surface of the evaporator and affect the heat transfer efficiency.

06/14/2020

Relay protection concept and basic requirements

Before introducing relay protection, first introduce several working states of the power system (1) Normal working state It means that all the equality and inequality constraints of the power system are satisfied, indicating that the power system me器2䀀
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09/11/2020

Chinese air-conditioning anchored new coordinates for industrial upgrading

Haier "zero distance" customization accelerates the restructuring of the air-conditioning industry The implementation of the new energy efficiency standards is imminent, and the air-conditioning industry may usher in a new inflection point.

07/19/2020

Advantages of adding economizer to screw chiller

The temperature control range of the standard screw chiller is 3～35℃, and the efficiency is significantly reduced when operating under lower temperature conditions. In order to meet the temperature requirements of more industries for chillers, make the single-stage screw compressor work according to the two-stage refrigeration cycle and achieve the effect of energy saving, an economizer can be added to the unit.

06/29/2020

How the compressor works

08/04/2020

Reasons for unstable temperature of refrigerated truck cargo box

In the transportation of frozen and refrigerated food in large supermarkets, refrigerated trucks must be used as carriers.