Danfoss Compressor VZH044BHANA

06/14/2020

[Maintenance case] BMW 520Li compressor clutch failure

[Maintenance case] BMW 520Li compressor clutch failure Model: F18. Driving mileage: 3000km. Fault phenomenon: The user reports that the vehicle's air conditioning system is faulty. Sometimes, the cooling effect of the air conditioner suddenly fails器2䀀
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01/14/2021

Brief Analysis of Hitachi Central Air Conditioner and Daikin

In the current domestic central air-conditioning market, the central air-conditioning is still doing well with Japanese brands. But among the Japanese brands, we have to say that Hitachi is the brand of Hitachi. At present, most air conditioners use scrol器2䀀
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09/01/2020

Analysis of three states of mechanical lubrication

There are three types of lubrication: full film lubrication, boundary lubrication, and mixed lubrication. They are in three different states, but they all rely on lubricating oil to lubricate and resist wear.

06/29/2020

Compression ratio of American Copeland compressor

08/27/2020

Multiple precautions and safety guidelines for the use of compressor lubricants

Lubricants of different brands cannot be mixed. Mixing oils of different quality and grades will reduce the performance of the oil, and produce viscous deposits and lacquer deposits, which will block the oil supply system and affect the pressure delivery of the oil.

07/19/2020

Types of refrigeration compressors for industrial chillers

The energy efficiency ratio of the chiller compressor of the chiller unit determines the energy efficiency ratio of the entire refrigeration system. Since the ambient temperature changes, the compressor is in a partial load state most of the time, so the compressor must have energy regulation.

07/05/2020

Hitachi centrifugal compressor

Hitachi centrifugal compressor Hitachi Industrial System Co., Ltd. is a world-renowned top 500 enterprise with rich product resources and strong technical strength. The products involve air compressor systems, control systems, feng shui systems, power distribution and environmental protection systems and other industrial fields, and have more than 100 years of compressor production experience.

09/15/2020

The difference between micro vacuum pump and gas sampling pump

Usually we call small-volume pumps that can generate negative pressure as micro-vacuum pumps, but we must strictly distinguish them when selecting products.

08/04/2020

The correct method and detailed steps of the cooling system of the computer room

1. The equipment pipes of the refrigeration system must be drained before operation to remove the welding slag, iron filings, sand and other dirt remaining in the system during the installation process.

08/14/2020

Factors affecting the boiling heat transfer of refrigerant liquid

In the evaporator, the heat of the cooled medium is transferred to the refrigerant through the heat transfer wall, so that the liquid refrigerant absorbs heat and vaporizes.