The cascade refrigeration cycle refers to a cycle in which two or more refrigeration cycles are combined and cooled according to a certain structure. Generally, the power is large, so a screw refrigeration compressor is used. The chiller is called a cascade screw chiller.
The temperature control range of the screw chiller is 5-35 ° C, and the cascade screw chiller can obtain a lower evaporation temperature than the multi-stage compression, such as adding two single-stage or single-stage two-stage doubling. A refrigeration cycle consisting of a single-stage system of low-temperature working fluid can obtain a low temperature of -110 to -140 °C. Usually, this is a water-cooled series, so there is another type of water-cooled screw chiller called a cascade.
Principle of cascade refrigeration chiller refrigeration cycle system
The commonly used cascade screw chiller refrigeration cycle is composed of two parts, which are called high temperature part and low temperature part. The high temperature part uses the medium temperature refrigerant, and the low temperature part uses the low temperature refrigerant. The two parts are each called a refrigeration system (single stage or two stage compression) using a single refrigerant, wherein the evaporation of the refrigerant in the high temperature part system is used for absorption. The amount of heat released by the refrigerant in the condenser in the low temperature part of the system.
The two parts of the cascade refrigeration cycle are connected by a condensing evaporator which is both a condenser in the low temperature section and an evaporator in the high temperature section. Thus, the heat absorbed by the low temperature portion (i.e., the amount of refrigeration of the cycle) can be transferred to the refrigerant at the high temperature portion, and the refrigerant at the high temperature portion transfers the heat (i.e., the circulating condensation load) to the environmental medium (air or water).
There are also cascaded water-cooled screw chiller refrigeration cycles consisting of three parts, called high temperature part, medium temperature part and low temperature part, with three refrigerants as working medium.
The working principle of the cascade water-cooled screw chiller is as described above, and I hope to guide you. Can help you better understand the working principle of the cascade screw chiller.
The temperature control range of the screw chiller is 5-35 ° C, and the cascade screw chiller can obtain a lower evaporation temperature than the multi-stage compression, such as adding two single-stage or single-stage two-stage doubling. A refrigeration cycle consisting of a single-stage system of low-temperature working fluid can obtain a low temperature of -110 to -140 °C. Usually, this is a water-cooled series, so there is another type of water-cooled screw chiller called a cascade.
Principle of cascade refrigeration chiller refrigeration cycle system
The commonly used cascade screw chiller refrigeration cycle is composed of two parts, which are called high temperature part and low temperature part. The high temperature part uses the medium temperature refrigerant, and the low temperature part uses the low temperature refrigerant. The two parts are each called a refrigeration system (single stage or two stage compression) using a single refrigerant, wherein the evaporation of the refrigerant in the high temperature part system is used for absorption. The amount of heat released by the refrigerant in the condenser in the low temperature part of the system.
The two parts of the cascade refrigeration cycle are connected by a condensing evaporator which is both a condenser in the low temperature section and an evaporator in the high temperature section. Thus, the heat absorbed by the low temperature portion (i.e., the amount of refrigeration of the cycle) can be transferred to the refrigerant at the high temperature portion, and the refrigerant at the high temperature portion transfers the heat (i.e., the circulating condensation load) to the environmental medium (air or water).
There are also cascaded water-cooled screw chiller refrigeration cycles consisting of three parts, called high temperature part, medium temperature part and low temperature part, with three refrigerants as working medium.
The working principle of the cascade water-cooled screw chiller is as described above, and I hope to guide you. Can help you better understand the working principle of the cascade screw chiller.
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