Nader Contactor NDC3-25 DC48V

07/10/2020

Structure and principle of screw air compressor

Structure and principle of screw air compressor 1.Basic Structure Generally, what we call a screw compressor refers to a twin screw compressor, and its basic structure is shown in the figure above. A group of interlocking spiral rotors are arranged in parallel in the main machine of the compressor.

08/14/2020

Commissioning of the water system (heat source) of the air conditioning system-equipment commissioning

Water test operation of surface cooler and spray device in air conditioning unit. Check whether the pressure difference between the inlet pipe pressure and the outlet pipe pressure of the meter cooler is within the normal range and whether there is water leakage; whether the water trap of the meter cooler is installed correctly and whether the discharge is smooth.

06/29/2020

How the compressor works

09/06/2020

New type filter for screw compressor-oil bath air filter

In the environment with high dust concentration in the air, the dust removal filter device used by the screw compressor is mostly paper or fiber material. The accumulation of dust particles is easy to block, and frequent shutdowns are required to replace filter materials.

06/23/2020

What refrigerator is used for cooling

Most of them use fluorine-free refrigerants, and the models include R600A, R410A, R407A, R134A, etc., which are all green and environmentally friendly. The specific models are marked on the nameplate on the rear side of the refrigerator. the way.

08/05/2025

The working principle and the common wiring method of the servo drive

The servo drives, the motor under the command signal from a control system, so whether the drive can work normally or not directly affects the overall performance of the equipment. In the servo control system, the servo drive is equivalent to the brain, and the servo motor is equivalent to the hands and feet.

06/04/2025

Appraisal and Test Method for Water Volume of FRP Cooling Tower

To control water resources, save scarce resources, and achieve full utilization of resources, FRP cooling towers have been widely used. It has corrosion resistance, high strength, light weight,

09/23/2020

Talking about screw compressor

It has become an inevitable trend to use highly reliable screw compressors to replace piston compressors with many wearing parts and poor reliability. Japan's screw compressors accounted for only 27% in 1976, and rose to 85% in 1985; the current market share of screw compressors in western developed countries is about 80%, and it maintains an upward trend.

10/16/2020

What is the cause of insufficient displacement of Copeland compressor

Insufficient compressor displacement has a great impact on the entire refrigeration system. If it is not repaired and handled in time, it may cause problems such as the cylinder, cylinder head rupture, and compressor water intake, which will destroy the entire refrigeration system cycle. It may even cause accidents such as compressor combustion and explosion. So what causes the insufficient displacement of Copeland compressor? Let's take a look.

01/08/2021

Four major producing areas of Mitsubishi Electric's central air conditioner

Four major producing areas of Mitsubishi Electric's central air conditioner Four-major-producing-areas-of-mitsubishi-electric's-central-air-conditioner Wakayama, Japan Founded in 1943, the cold and heat system manufacturing plant entered the open r器2䀀
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