CELDUC Relay SOD843180

08/20/2020

What are the requirements of the chiller for the performance of compressor lubricants

The refrigeration compressor is one of the most important components of the chiller, so the lubricating oil (also called refrigerating machine oil) it uses is very demanding.

09/10/2020

The basic points of choosing laboratory bench centrifuge

The desktop centrifuge uses the powerful centrifugal force generated by the high-speed rotation of the centrifuge rotor to accelerate the sedimentation speed of particles in the liquid, and separate substances with different sedimentation coefficients and buoyancy densities in the sample.

06/29/2020

How the compressor works

11/15/2023

Computer Fan Basics: Size, Bearing, Connector, Frame

A passive heatsink does not make noise, and the quiet effect is naturally superior to all active heatsinks, but it will have a large gap with the latter in terms of heat dissipation.

07/09/2022

What is A Mechanical Sealing

A mechanical seal is simply a method of containing fluid within a vessel (typically pumps, mixers, etc.) where a rotating shaft passes through a stationary housing or occasionally, where the housing rotates around the shaft.

03/01/2021

The main difference between brushless DC motor and DC servo motor

Different definitions: (1) Brushless DC motor is a typical mechatronics product, which is composed of motor body and driver. Brushless motor refers to the motor without brush and commutator (or collector ring), also known as commutator less motor. As early as the 19th century, when the motor was born, the practical motor was the brushless form, that is, the AC squirrel cage asynchronous motor, which has been widely used. However, the asynchronous motor has many insurmountable defects, so that the development of motor technology is slow. The transistor was born in the middle of last century, so the brushless DC motor using transistor commutation circuit instead of brush and commutator came into being. This new type of brushless motor is called electronic commutation DC motor, which overcomes the defects of the first generation of brushless motor.

07/17/2020

Cause Analysis and Treatment Method of Copper Tube Leakage of Evaporator of Single Cooling Unit

Cause Analysis and Treatment Method of Copper Tube Leakage of Evaporator of Single Cooling Unit A central air-conditioning system in a public area uses a screw chiller. During operation, a copper tube in the evaporator leaks due to a malfunction. After further inspection by the technical staff, it was confirmed that the fault was leakage of the copper pipe of the evaporator of the chiller.

01/09/2021

Do you know what is a central dust removal system ？

How to create a cleaner environment more efficiently, along with people's awareness and awareness of cleanliness, also mentioned in front of people. Generally, various cleaning agents, cleaning tools and cleaning equipment in the traditional sense have va器2䀀
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08/08/2020

Ten matters needing attention in the use of liquid nitrogen tanks

Liquid nitrogen tanks can generally be divided into liquid nitrogen storage tanks and liquid nitrogen transportation tanks. The storage tank is mainly used for the static storage of indoor liquid nitrogen, and is not suitable for long-distance transportat–ﰨ2䀀湠疖VǜV

01/04/2021

Integrally Geared Compressors

Integrally Geared Compressors From Aaron M. Rimpel, ... Kolja Metz, in Compression Machinery for Oil and Gas, 2019 Petrochemical The oil and gas industry requires strict compliance with API 617 [4], and there is limited application for IGCs directly in器2䀀
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