Danfoss Compressor SZ120A7PAL

09/05/2020

What is the two-stage compression permanent magnet frequency conversion

Domestic sales of energy-saving air compressors are in full swing. Permanent magnet variable frequency air compressors and two-stage compression permanent magnet variable frequency air compressors are representative of energy-saving air compressors and are currently the mainstream products on the scene.

08/11/2020

Why is the duct air conditioner not a central air conditioner

Many people think that the air duct machine is also a central air conditioner. Strictly speaking, this understanding is actually wrong. Ducting machine is the abbreviation of concealed air conditioner. It can also be called air-conditioning ducting machine or ducted air-conditioning.

08/20/2020

Which is cost-effective to rent a cold storage or build a cold storage yourself

Which is cost-effective to rent a cold storage or build a cold storage yourself? On this issue, we mainly have the following considerations:

06/26/2020

Maintenance method of refrigerator compressor without stopping

Maintenance method of refrigerator compressor without stopping The focus of non-stop compressor maintenance is on the cooling effect. If the cooling effect is normal without stopping, the fault is in the thermostat. Otherwise, it is because the system lacks fluorine and the temperature falls below the control point, which results in non-stop. When repairing,

08/19/2020

Troubleshooting of low valve temperature of screw chiller

The outlet temperature of the expansion valve of the screw chiller reflects the evaporation temperature, which is a factor that affects the heat exchange. Generally, the difference between it and the outlet temperature of the refrigerant water is 5~6℃.

09/02/2020

A Brief Discussion on the Life Cycle Cost Theory of Air Compressors

This article carefully analyzes the cost of air compressor equipment throughout its life cycle from the perspective of users. First of all, air compressors are general equipment. Air compressors can be found in civilian hospitals and medical fields, industrial manufacturing companies, construction markets, and transportation operations.

09/21/2020

How to determine and calculate gas consumption

The traditional method of determining the compressed air requirements of a new plant is to add up the air consumption (m3/min) of all air-consuming equipment, and then consider adding a safety, leakage and development factor

07/27/2020

What is the principle of air conditioning refrigeration system? What is the heating principle of the air conditioner?

When we use the air conditioner, the commonly used function should be the cooling function, because the cooling function can bring us a more comfortable and cool environment in summer,

06/29/2020

Compression ratio of American Copeland compressor

09/09/2020

The influence of machining on fatigue life

The residual compressive stress introduced by shot blasting/shot peening is a percentage of the final tensile stress strength, and this ratio increases as the strength/hardness of the part material itself increases. High-strength/hardness metals are more brittle and more sensitive to surface defects. Shot blasting/shot peening will allow these high-strength metals to be used in fatigue-prone working conditions. Aircraft landing gear is usually designed with a fatigue strength of 300 ksi (2068 MPa), combined with shot blasting/shot peening.