Danfoss Compressor SM124A4AN

08/02/2020

Treatment method after load damage of screw chiller

First of all, we must confirm whether the compressor load has been burned or the components have been worn away. If so, the refrigerant system will inevitably be contaminated. For example, residual refrigerant oil remains in the pipeline after carbonization

08/27/2020

Brief Discussion on Monitoring of Safety Protection Device of Mine Air Compressor

In the process of monitoring and inspecting the safety of air compressors in mining enterprises, the author found that more than 90% of the equipment was not equipped or not fully equipped with the temperature and pressure protection devices that should be configured.

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.

08/25/2023

Heat Pump vs Mini Split: Which is Better for Your Home?

When it comes to heating and cooling your home, there are many options available on the market. Two popular choices are heat pumps and mini splits.

08/04/2020

Anatomy of the pressure adjustment mode of the condenser of the small chiller

During the operation of a small chiller, changes in temperature will cause changes in condensing pressure.

08/29/2020

Discussion on ways to reduce the design cost of air compressor

Reduce the friction between the end face of the crankshaft and the end face of the crankcase On the direct-coupled air compressor, the front end of the crankshaft adopts gear transmission, and the gears are divided into straight and helical teeth.

01/14/2025

Refrigerator PTC Relay Wiring Method

The PTC (positive temperature coefficient) relay is directly connected in series with the secondary winding (start winding).

04/11/2025

Overview of Screw Refrigeration Compressor Technology

Screw compressors, also known as screw compressors, are divided into single screw compressors and twin screw compressors. The single screw compressor was developed by Sinn, France in the 1970s.

07/07/2020

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

09/05/2020

Viscosity index requirements for air compressor lubricants

As everyone knows, air compressor lubricating oil is very important, and it is an indispensable necessity during the operation of oil screw air compressor. There are many functions of lubricating oil in screw air compressors, the most important of which is lubrication.