NEC Relay UD2-3SNUN-LQ

06/14/2020

What cooling methods do you know Come chat!

What cooling methods do you know? Come chat! 1. Steam compression refrigeration Principle: In the vapor compression refrigeration cycle system, the compressor sucks low-temperature and low-pressure refrigerant vapor from the evaporator

09/04/2020

How many do you know about the essential nine almighties in the bearing industry

1. Installation of bearing 　　 Whether the bearing is installed correctly or not affects the accuracy, life and performance. Therefore, the design and assembly department must fully study the bearing installation. Hope to install in accordance with operating standards. The work standard items are usually as follows:

06/29/2020

How the compressor works

06/14/2020

In doing so, there is no need to worry about reversing the refrigeration compressor! (technology sharing)

In doing so, there is no need to worry about reversing the refrigeration compressor! (technology sharing) When the refrigeration compressor unit is in normal operation, it should also be checked accordingly to prevent the refrigeration compressor from re器2䀀
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08/09/2020

How does the HVAC industry achieve energy conservation and environmental protection

The principles of HVAC development are summarized as: energy saving, environmental protection, sustainable development, ensuring the sanitation and safety of the built environment, adapting to the national energy structure adjustment strategy

06/29/2020

Semi-closed piston refrigeration compressor 4SJH-3000

Semi-closed piston refrigeration compressor 4SJH-3000 Features of semi-hermetic piston compressor 4SJH-3000: 1. Light in size and small in space 2. Suitable for R12, R22 and R502, with a wide range of applications

08/17/2020

What is a plate heat exchanger What are its advantages and scope of application

The plate heat exchanger is stamped into a veneer with corrugated grooves of a certain regular shape from a thin metal plate (usually steel or stainless steel), and then the single pieces are assembled into the required multi-piece group.

06/14/2020

Detailed explanation of screw compressor structure and working principle

Detailed explanation of screw compressor structure and working principle Screw compressors, also known as screw compressors, include screw air compressors and screw process compressors (vinyl chloride compressors, etc.).

07/31/2020

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

1. Water leakage (first determine the location of the water leakage)<br></br> 　　 1. Water leakage from the pump (causes: the shaft seal at the water pump is not well connected or the shaft seal has been damaged)

07/26/2020

Why is your air conditioner not effective in heating What are the factors

The Central Meteorological Observatory issued a blue warning for cold wave, and there is about to be a cooling rain across the country, and the temperature across the country will drop by 10 to 12 degrees, with a local drop exceeding 15 degrees!