UTC IC Integrated Circuit Chip UTC2000T

02/21/2023

Working Principle of Butterfly Valve and Emergence of New Butterfly Valve

Butterfly valve is a kind of valve that opens, closes, and adjust medium flow by using disc type hoist to turn back and forth about 90 °.

06/14/2020

Piston compressor

The work of the piston compressor is completed by the working volume composed of the cylinder, the air valve and the piston reciprocating in the cylinder. If the volume loss and energy loss (that is, the ideal working process) of the actual operation of t器2䀀
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08/21/2020

Common problems and solutions of industrial chillers summarized by the maintenance master

1. Water leakage (first determine the location of the water leakage) 　　 1. The pump leaks (causes: the shaft seal at the water pump is not well connected or the shaft seal has been damaged)

08/20/2020

Popularization of food cold storage and precautions for use

With the development of science and technology, people's living standards are improving day by day, and more and more types of food are used. It can be described as a dazzling array of items.

06/14/2020

Analysis of common failures and causes of refrigeration compressors

Analysis of common failures and causes of refrigeration compressors The refrigeration compressor is the heart of the entire refrigeration system and the most important in the refrigeration system. Its main role is to compress the low-temperature and low-器2䀀
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08/17/2020

Features of screw and centrifugal chillers

The chiller is a kind of water-cooled equipment as its name implies, but it is a mechanized equipment that can provide constant temperature, constant pressure and constant current.

07/27/2020

In order to extend the life of the screw unit, these failures must be avoided

During the use of screw chillers, there are some failures, such as high pressure failure, low pressure failure, low valve temperature failure, compressor overheating failure, communication failure, etc.,

06/23/2025

What is Configuration Software? - HMI/ MMI/ SCADA

Configuration software is a control system composed of HMI (Human and Machine Interface) / MMI (Man and Machine Interface)/ SCADA (Supervisory Control and Data Acquisition).

07/30/2020

Analysis of common failure causes of hermetic refrigeration compressors

The resistance between running terminal (R), starting terminal (S), common terminal (C), RS is greater than the resistance between SC and RC. The resistance between RS is equal to the resistance between SC and the resistance between RC.

07/07/2020

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