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  • How to calculate the cost of cold storage?

    How to calculate the cost of cold storage?

    How to calculate the cost of cold storage? The cost of cold storage has always been the most concerned issue for customers who want to build and invest in cold storage. After all, it’s normal to want to know how much money you need to invest in a project with your own m...
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  • Do you know  why the high and low pressure of the cold storage system is abnormal?

    Do you know why the high and low pressure of the cold storage system is abnormal?

    The evaporating pressure, temperature and the condensing pressure and temperature of the refrigeration system are the main parameters. It is an important basis for operation and adjustment. According to the actual conditions and system changes, the operating parameters are continuously adjusted a...
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  • What is the difference between R404a and R507 refrigerant?

    What is the difference between R404a and R507 refrigerant?

    The refrigerant R410A is a mixture of HFC-32 and HFC-125 (50%/50% mass ratio). R507 refrigerant is a non-chlorine azeotropic mixed refrigerant. It is a colorless gas at room temperature and pressure. It is a compressed liquefied gas stored in a steel cylinder. The difference between R404a and R50...
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  • Operation of screw refrigeration compressor

    Operation of screw refrigeration compressor

    1.First start and stop Before starting up, the coupling must be realigned. When starting up for the first time, you must first check the working conditions of all parts of the compressor and electrical components. The inspection items are as follows:   a. Close the power switch and select the man...
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  • Freezing refrigeration system cycle and components

    Freezing refrigeration system cycle and components

    There are many refrigeration methods, and the following are commonly used: 1. Liquid vaporization refrigeration 2. Gas expansion and refrigeration 3. Vortex tube refrigeration  4. Thermoelectric cooling     Among them, liquid vaporization refrigeration is the most widely used. It uses the heat ab...
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  • Refrigeration welding operation experience sharing

    Refrigeration welding operation experience sharing

    1.Precautions for welding operation When welding, the operation should be carried out strictly according to the steps, otherwise, the quality of welding will be affected. (1) The surface of the pipe fittings to be welded should be clean or flared. The flared m...
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  • A2L HFO replaces R22, R410, R404 and other precautions

    A2L HFO replaces R22, R410, R404 and other precautions

    It is imminent to find replacements for second- and third-generation refrigerants! On September 15, 2021, the "Kigali Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer" entered in...
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  • China IOT Cold Chain Committee, Yiliu Technology, and CISCS jointly release new cold chain related indexes

    China IOT Cold Chain Committee, Yiliu Technology, and CISCS jointly release new cold chain related indexes

    In recent years, the country and related logistics companies have begun to pay attention to the development of cold chain logistics, because cold chain logistics can effectively ensure food safety, and the low temperature in the co...
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