Mitsubishi Compressor RB165WPDC

08/21/2020

What are the advantages of using economizers for screw chillers

1. What is an economizer Economizers are often used in secondary air screw compressor refrigeration systems. Under working conditions with relatively low evaporation temperatures (below -25°C), the efficiency of ordinary single-stage screw compressors decreases,

08/02/2020

New refrigerant R450A is used for performance study of ejector refrigeration cycle

The new refrigerant R450A is a substitute for R134a, which is environmentally friendly and reliable. There are still few studies on it.

08/02/2020

How to choose a mobile cold storage

Mobile cold storage is also called combined cold storage, movable cold storage, and assembled cold storage. It is a new type of cold storage corresponding to the traditional civil cold storage.

07/03/2024

Proportional Valve vs. Solenoid Valve vs. Servo Valve

The way the valve controls the fluid can be divided into two types: one is on/off control, either fully open or fully closed. Examples for this type of valve include ordinary direct-acting solenoid valves, solenoid-operated directional valves, electro-hydraulic directional valves, etc.

07/19/2020

Centrifugal compressor unit

The machinery of each component in the mixture of liquid and liquid. The centrifugal refrigeration compressor is a rotary speed compressor, which is most suitable for compressing large-capacity gas or steam. The centrifugal chiller uses electricity as the power source.

06/29/2020

Compression ratio of American Copeland compressor

08/19/2020

Discussion on ills of central air-conditioning water system

The central air-conditioning water system is a relatively complex system, which is very important to the operation effect of the central air-conditioning system. The article summarized several common ills of central air-conditioning water system,

08/15/2020

Illustrate the working principle and characteristics of various heat exchangers

1. Heat exchanger<br></br> 1. U-shaped tube heat exchanger<br></br> Each tube is bent into a U shape and fixed on the same side tube plate. Each tube can be freely expanded and contracted, also in order to eliminate thermal stress.

07/17/2020

Reasonably adjust the cold storage evaporator and defrost in time

Reasonably adjust the cold storage evaporator and defrost in time Generally speaking, every increase in the cold storage evaporation temperature can save energy Therefore, under the premise of satisfying the low refrigeration process of the product, the evaporation temperature can be increased as much as possible by adjusting the amount of liquid supplied. The thermal resistance of the frost layer is generally much larger than the thermal resistance of the steel pipe.

06/14/2020

New technology for refrigeration compressors

Refrigeration compressors are too extensive, from small refrigerator wine cabinets to large ice storage chillers, the core of which is a refrigeration compressor, and the mechanical structure is completely different. Each subdivided compressor can be diviﰸ2䀀
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