CRYDOM Relay H12D4890K

08/05/2020

Do you know all the protective devices for air-cooled chiller refrigeration compressors

In order to prevent the air-cooled chiller from running uninterruptedly for 24 hours, causing the compressor to operate under high load, the electromagnetic switch is not good, the overcurrent caused by the shaft holding,

01/08/2021

The relationship between the start of the compressor with liquid and the migration of refrigerant and the solution

The relationship between the start of the compressor with liquid and the migration of refrigerant and the solution One, start with liquid First, let's define what is called liquid start. When the refrigeration unit is in the shutdown state, there is ref器2䀀
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06/21/2020

Composition principle of refrigeration system of refrigerator

Composition principle of refrigeration system of refrigerator Refrigerators have a larger cooling capacity than household refrigerators, and there are more refrigerants filled in the system. Therefore, a liquid storage tank is installed on the pipeline between the condenser and the filter, and a shut-off valve is installed on the tank to shut down the system for a long time. When closing the shut-off valve, the refrigerant liquid is stored in the tank.<img src="{{media url=&quot;Composition_principle_of_refrigeration_system_of_refrigerator.jpg&quot;}}" alt="" />

07/27/2020

World Compressor Market Overview of the Compressor Market Oil-free technology

Compressors using oil-free technology have attracted more and more attention in the global market because they reduce operating and maintenance costs and are an energy-saving product.

08/31/2020

Talking about the characteristics and main points of air compressor waste heat recovery

With the continuous improvement of the domestic economic level, the corresponding prices of various energy products continue to rise, and energy consumption is critical to the corresponding production and operation of related industrial enterprises.

08/24/2020

Where is the safety boundary of cold chain logistics what are the risks How to ensure safety

Following the detection of the new crown virus from the cutting board of imported salmon in Beijing Xinfadi Market, the topic of how the virus is transmitted has become a focus.

10/31/2021

Study on the Performance of Single Phase AC-DC-AC Inverter Circuit

Variable Frequency Drive(VFD) converts power in the motion control system. The motion control system now contains a variety of disciplines.

07/23/2020

R410a and R22 refrigerant comparison application and installation specifications

1.Introduction to the properties of R410a refrigerant<br></br> 1. R410a is a HFCs refrigerant mixed with two working fluids of R32 and R125 at a mass fraction of 50% and 50%. It is a near-azeotropic mixture (pseudo-azeotrope), and its thermal performance is close to a single working fluid.

07/07/2020

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

08/06/2020

Root Causes and Prevention Methods of Coil Freezing Cracks of Air Conditioning Unit

Root Causes and Prevention Methods of Coil Freezing Cracks of Air Conditioning Unit<br></br> In general, the heat medium in the heat exchanger of the air conditioning unit is water (surface cooling: 7-12°C; heating 70-90°C or steam heating).