SAND Transmitter PT124-50MPa-M14-200/180

06/25/2020

Is Hitachi air-conditioning compressor Toshiba brand

"I obviously bought a Hitachi air conditioner. It was discovered that the air conditioner used a Toshiba compressor during maintenance." A few days ago, some media reported this complaint about Hitachi air conditioners. Therefore, many consumers questioned the difference between the case and the internal machine brand: the purchase clearly identified a certain brand, why did you change the brand of the contents inside without telling it? Is there any difference between the products of the two brands? What if the after-sales service is not guaranteed?

08/19/2020

Troubleshooting of low valve temperature of screw chiller

The outlet temperature of the expansion valve of the screw chiller reflects the evaporation temperature, which is a factor that affects the heat exchange. Generally, the difference between it and the outlet temperature of the refrigerant water is 5~6℃.

06/23/2020

What is the solution of air conditioning not cooling

There are many reasons why the air conditioner is not cooling. For example, if the air conditioner refrigerant is insufficient, you can find a professional to add snow; secondly, it may be caused by the error of the air conditioner installation, such as the ventilation pipe is too long. It is recommended to shorten the length of the ventilation pipe; A lot of dust stains accumulate on the radiator and cause no cooling. It is recommended to clean the air conditioner.

08/08/2020

Reasons for condensation at the bottom of the condenser

Reasons for condensation at the bottom of the condenser 1. It is abnormal if condensation occurs at the bottom of the condenser when the unit is running. It may be the reason for the low amount of refrigerant.

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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06/14/2020

Cold storage equipment installation and commissioning

Installation of refrigeration compressor unit in cold storage: The condensing unit should avoid installing in high temperature environment, and the outdoor awning should be installed to avoid rain or direct sunlight. The air inlet side of the air-cooled c器2䀀
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07/16/2020

What should I do if there is ice jam in the cold and hot shock test box?

During the environmental test, the thermal shock series and the thermal shock test chamber may have many problems, which may cause ice jams. How to solve this problem? Some people think that when large equipment such as the thermal shock series appears The problem, most people may think that only * maintenance personnel can perform repairs, but this is not the case. Stress screening cold and hot shock test box

06/29/2020

How the compressor works

03/01/2023

The Structure and Basic Working Principle of Air Cylinder

Air cylinder is composed of cylinder barrel, end cap, piston, piston rod, and sealing ring.

07/27/2020

The working principle of screw unit and common failure analysis

1. Refrigeration cycle and pressure enthalpy diagram<br></br> 　　 The refrigeration cycle of a screw chiller can be represented by a pressure-enthalpy diagram. The main state points are shown in the diagram, which will be used in the following discussion.