Danfoss Compressor SM084W7PBN

07/07/2020

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

07/16/2022

Common Faults of Gear Pump

Cause: A. the rotation direction is opposite; B. the suction or discharge valve is closed

07/21/2020

Analysis of the application advantages and disadvantages of the five major refrigeration compressors

At present, semi-hermetic piston compressors are mostly used in the cold storage and freezing and refrigeration markets (commercial refrigeration and air conditioning are also useful, but they are relatively less used now). The semi-enclosed piston cold storage compressor is generally driven by a four-pole motor, and its rated power is generally between 60-600KW. The number of cylinders is 2-8, up to 12.

07/05/2020

Why is frost formed between the electronic expansion valve and the compressor

Why is frost formed between the electronic expansion valve and the compressor? A customer asked: The compressor is suddenly not cooling, and the electronic expansion valve is frosted to the compressor. Is there any relationship between the two before?

06/14/2020

The structure of the central air conditioner is relatively complicated

The structure of the central air conditioner is relatively complicated. During use, the compressor noise is often accompanied by vibration. The vibration will increase the decibel of the noise, and the two affect each other. However, if the sound of vibra器2䀀
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09/18/2020

What are mineral oil, semi-synthetic oil and fully synthetic oil What is the difference between them

What are mineral oil, semi-synthetic oil and fully synthetic oil What is the difference between them Mineral oil (MineralLubricant) Mineral oil is a lubricating oil extracted from petroleum. The base oil of mineral oil is the bottom oil left over after the fractional distillation of useful light substances (such as aviation oil, gasoline, etc.) during crude oil refining. Into the product. Essentially, it uses the poorer components of crude oil. Mineral oil is currently the most common type of lubricant on the market.

09/08/2020

Precautions for the selection of air compressor tank

Brief introduction of air compressor tank: 　　 Air storage tank is a kind of industrial equipment commonly used in industry to purify and compress air, and it is also one of the special safety equipment strictly regulated by the country.

07/23/2020

The secret of refrigeration compressor lubrication

The refrigeration process can be traced back to the middle of the 18th century, when the experiment was about the production of ice. This technology was perfected in the 18th century, and modern refrigeration was born. This can be used to cool or freeze liquids and foods so that they can be kept longer.

09/11/2020

Bearing and shaft fit tolerance standard

Bearing and shaft fit tolerance standard ①When the bearing inner diameter tolerance zone and the shaft tolerance zone form a fit, the tolerance code originally belonging to the transition fit in the general basic hole system will become an over-win fit, such as k5, k6, m5, m6, n6, etc., but the over-win amount is not Large; when the bearing inner diameter tolerance is matched with h5, h6, g5, g6, etc., it is not a clearance but an over-win fit.

09/09/2020

Installation method to ensure that the air compressor does not leak oil

1. Install the gasket correctly: The gasket between the parts of the air compressor functions as a leak-proof seal. If the material, production quality and installation do not meet the technical specifications, it may cause oil leakage.