Danfoss Compressor SZ148A7AC

08/18/2020

How to replace the lubricating oil and filter drier of the chiller

After the chiller is used for a long time, the lubricating oil will inevitably be contaminated or acidified. Therefore, we must pay attention to the change of oil quality during the operation of the unit.

07/29/2020

Types of refrigeration and air conditioning piping and calculation formula for wall thickness

Types of refrigeration and air conditioning piping<br></br> The types of refrigeration and air-conditioning piping are classified into the first, second, and third types according to the highest operating pressure (design pressure).

08/13/2020

How to choose the internal machine for cold storage Choose air cooler or exhaust pipe

Most of the cold storages we make are divided into many types, such as high temperature storage, low temperature storage, ultra low temperature storage, etc. So how to choose the internal machine of the cold storage?

07/16/2020

Judgment of the failure of piston compressor in starting

Piston compressor It is a type of compressor commonly used in industrial refrigeration. Most piston compressors use a semi-closed shape, which is simple and convenient to maintain and repair. It is widely used in large supermarkets, cold stores, laboratories, and various refrigeration equipment.

09/07/2020

How to distinguish whether air compressor oil has impurities

Everyone knows that screw air compressors have high requirements for oil. However, air compressors are easily mixed with others during use, which will not only affect the work of the air compressor, but also easily cause damage to the air compressor.

06/14/2020

Copeland compressors in the United States (notes)

Copeland compressors in the United States (notes) Heat pump type-excess liquid return test

07/31/2020

What kind of equipment is generally used in cold storage How to select the refrigeration equipment

The cost of cold storage with a refrigeration capacity of less than 60kw is relatively large. It is generally suitable for small cold storage and air conditioning units. The cost of such small cold storage within 100 square meters ranges from 30,000 to 100,000.

07/15/2020

The Secret of Counterfeit Refrigeration Compressor

Mass consumer goods, especially branded products, once counterfeit, copycats, etc., there will be a large number of media and professional counterfeit ears to remind consumers. However, due to the distance between refrigeration products and ordinary consumers, they are rarely bombarded or continuously concerned, and are more often circulated within the industry, which makes it more difficult for the industry to fight counterfeiting.

08/19/2020

How to improve the efficiency of closed cooling tower

No matter how precise the equipment, no matter how tightly formed the structure, and no matter how good the quality of the product, without a correct and good maintenance and maintenance,

06/29/2020

What is the cause of compressor pipeline vibration