Siemens PLC 6ES7194-2AA00-0AA0

08/18/2020

Causes of vibration of air conditioning fans in computer rooms

There should be a qualified mechanical professional technician (or, hire a contract mechanical professional technician) among the staff in the data center.

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="" />

06/29/2020

Compression ratio of American Copeland compressor

07/25/2024

Heat Pump Reversing Valve Structure, Working Principle and Troubleshooting

The heat pump reversing valve (HVAC reversing valve) is mainly used in heat pumps. Since there are mainly four pipes connected to it in structure, it is often called a four-way reversing valve.

08/24/2020

How long is the service life of the refrigerator

Currently, there is no mandatory standard for the service life of electrical appliances.<br></br> 　　 The "Safety Life of Household Appliances" formulated by the Household Appliances Industry Association specifies that the safe use of refrigerators is 10 years.

08/19/2020

Don’t worry about the November holiday, let’s take a look at the air conditioner relocation

Tomorrow the November holiday will officially begin, and many friends who are backed up have asked for leave in advance to go home. When I’m idle this holiday, I don’t have to toss and toss

07/20/2020

How to judge the starter of the refrigerator compressor is broken

1. The heavy hammer starter, the part that is easily damaged is the poor contact of the start contact. During the measurement, the weight starter can be removed and measured with a multimeter ohm block according to the original installation direction.

07/17/2020

Empty and replace the expansion valve after servicing the refrigeration system

Let's introduce the operation process when replacing the expansion valve in the refrigeration system. In the system, when the low pressure of the system is under pressure control, short-circuit the controller before venting the system to prevent the system from jumping during vacuum.

06/14/2020

Advantages of scroll refrigeration compressor

1. There is no reciprocating mechanism, so the structure is simple, small size, light weight, few parts (especially few wearing parts), and high reliability; 2. The torque change is small, the balance is high, the vibration is small, the operation is staﰸ2䀀
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09/09/2020

Compressor companies have caused the misunderstanding of killing, how many tricks have you hit

In recent years, many machinery manufacturing companies, including the compressor industry, have suffered unprecedented tests. Some are not adaptable due to the transformation of the economic system, and there are also "secret injuries" from the company’s own business strategy.