Danfoss Compressor SZ175A4PAO

07/21/2020

Basic knowledge of refrigeration compressor (technology sharing)

Compressor, a driven fluid machine that promotes low-pressure gas to high-pressure gas. It is the heart of the refrigeration system. It sucks in low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor, and discharges the high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle. Compression → condensation (heat release) → expansion → evaporation (heat absorption) refrigeration cycle.

07/07/2020

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

08/24/2020

What are the specific operation methods for cold storage screw compressor maintenance

1. Disassembly method of screw compressor in cold storage 　　 Before the screw compressor of the cold storage must be overhauled, if possible, unload the slide valve to the "0" position, stop normally, and cut off the power supply.

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

04/06/2022

How to Make an Air Conditioner With a Fan?

The weather in summer is pretty hot . If there is no air conditioner at home, only the electric fan can we use to cool down. If we still feel hot after turning on the fan, in fact, we can make an electric fan as cool as an air conditioner by ourselves.

09/09/2020

Management method of air compressor station in factory

As an important form of energy generation, air compressors are widely used in various industries, and there are many details in their maintenance. The service life of the air compressor can be prolonged after maintenance. Therefore, how to manage the air compressor room also plays a certain role in the maintenance of the air compressor.

08/19/2020

What should be prepared before the central air conditioner starts, come and see!

In recent years, with the rapid development of central air-conditioning in China, central air-conditioning is frequently touched during work and day. Everyone is enjoying the comfort brought by central air-conditioning,

08/20/2020

Installation and placement conditions of cooling tower of thermal shock tester

Let's learn about the installation and placement conditions of the cooling tower of the thermal shock tester with the editor of okmarts.com! 1. The ground is flat and well ventilated;

03/08/2021

AC servo driver wiring precautions

For signal line and encoder input line, please use shielded wire. Wiring length: the length of signal line from NC to AC servo driver is less than 3m, and the length of input line from AC driver to encoder is less than 20m. The ground wire should be thick wire as far as possible. According to the third grounding standard (grounding resistance < 100 Ω), one point grounding method should be adopted to connect the ground wire. If the motor and the machine tool are insulated, the motor should be grounded.

09/14/2020

Analysis of the consequences of refrigerant liquid entering the compressor

When the refrigerant liquid entering the evaporator is too much or the evaporation pressure is too low, the cold The medium liquid will be sucked into the compressor. Since the refrigerant liquid is incompressible,