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06/14/2020

Centrifugal compressor2

Centrifugal compressors, also known as turbine compressors, are mainly used to compress gas. They are mainly composed of a rotor and a stator: the rotor includes an impeller and a shaft, and the impeller has blades, a balance disk, and a part of the shaft器2䀀
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08/15/2020

Illustrate the working principle and characteristics of various heat exchangers

1. Heat exchanger<br></br> 1. U-shaped tube heat exchanger<br></br> Each tube is bent into a U shape and fixed on the same side tube plate. Each tube can be freely expanded and contracted, also in order to eliminate thermal stress.

01/24/2023

What is a Pressure Transmitter?

A pressure transmitter is a device that converts pressure into pneumatic or electric signals for control and remote transmission.

07/07/2020

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

06/16/2020

Martin Rossen new global head of public affairs and communication at Danfoss

Martin Rossen will join Danfoss as Senior Vice President, Group Communication & Reputation 1st November, 2020, where he will be responsible for Danfoss’ global public affairs and communication activities. As of 1st November 2020, Martin Rossen takes on t器2䀀
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07/08/2020

Advantages and disadvantages of Hitachi central air conditioning

Advantages and disadvantages of Hitachi central air conditioning Hitachi Central Air Conditioning has always been at the forefront of air-conditioning technology, advocating the development and transformation of air-conditioning technology with the height of giants. Advantages: 1. Patented scroll compressor technology, as early as 1983, Hitachi invented the world's first scroll-type air-conditioning compressor and has a patent; and in 2003, Hitachi launched the industry's first internal oil separation function The new high-pressure cavity scroll compressor further improves the efficiency and reliability of the compressor and effectively increases the service life of the air-conditioning host.

08/07/2020

What to do if the air conditioner drips Why not try this trick

Every household basically has air conditioners, but dripping of air conditioners is really a big problem. Many people don't understand why the air conditioners are dripping.

07/16/2020

Analysis of the reason why cold storage should not be built underground

Many people think that building cold storage underground will have better thermal insulation effect than cold storage on the ground, because in the past, when the technology was backward, it was very common to choose cellars as crop storage. But from a commercial point of view, it is not scientific to blindly build the cold storage underground. The cold storage construction team stands from the perspective of consideration for customers

04/21/2022

Six Level Measuring Instruments and Relative Merits?

Float level meter is an instrument of measuring liquid level based on buoyancy principle. Usually, the combination of floating ball and scale enables the observer to intuitively read the height of liquid level.

08/20/2020

Precautions for water treatment of central air conditioning chillers

The central air conditioner of many units will have various problems during operation. After analysis, a considerable part of it is caused by the unreasonable design of the design department or even the design error.