NACHI Tool for Metal Cutting NACHI LISTL6272P 20mm

07/08/2024

Water Solenoid Valves: Common Faults, Solutions, ＆ Precautions

solenoid water valve is a valve that allows or restricts the water flow by controlling the operation of an electromagnet. It is usually divided into two types: direct acting and indirect acting.

07/07/2020

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

08/15/2020

Cold storage operation maintenance and management methods

1.Booting and preparation before booting Before starting up, check whether the valves of the unit are in normal starting state, check whether the cooling water source is sufficient, and set the temperature according to the requirements after the power is turned on.

01/08/2021

How Air Conditioners Work

Air conditioners use refrigeration to chill indoor air, taking advantage of a remarkable physical law: When a liquid converts to a gas (in a process called phase conversion), it absorbs heat. Air conditioners exploit this feature of phase conversion by fo器2䀀
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07/20/2020

Before replacing the compressor, remember to do 10 things first, remember

Before replacing, you must check the cause of the damage to the original refrigeration compressor and replace the defective parts. Because damage to other components will directly cause damage to the refrigeration compressor, remember!

03/01/2021

Basic principle and optimization algorithm of BLDC

Brushless direct current motor (BLDCM,) gets rid of the inherent shortcomings of the brushless DC motor, and replaces the mechanical motor rotor with the electronic motor rotor. Therefore, the brushless DC motor not only has the excellent speed characteristics of the DC motor, but also has the advantages of simple structure, no commutation flame, reliable operation and easy maintenance.

04/18/2024

Servo Drives Basics

In the realm of industrial automation, the term "servo drive" has become synonymous with precision and efficiency. These sophisticated electronic devices play a crucial role in controlling the motion of motors, providing unparalleled accuracy in a variety of applications.

08/16/2020

Factors influencing the evaporation capacity of air-cooled chiller evaporator

Whether it is an air-cooled chiller, an air-cooled screw chiller, or an air-cooled low-temperature chiller, an evaporator is needed. Today we are discussing: What is an evaporator? What are the factors that affect the evaporation capacity of an air-cooled chiller evaporator?

01/24/2024

Cooling Fans for Inverter Motors: Necessity, Intelligent Control and Selection Precautions

Since the inverter motor generates a large amount of heat when running, and poor heat dissipation will cause the motor temperature to be too high, thereby reducing the life and efficiency of the motor.

08/19/2020

The difference between ammonia refrigeration system and fluorine refrigeration system

In the early stages of the development of the refrigeration and refrigeration industry, ammonia refrigeration systems have been widely used. With the development of the times, the shortcomings of ammonia systems have gradually been exposed,