Purification workshop refrigeration equipment scheme
Purification workshop refrigeration equipment scheme
Refrigeration technology is widely used, and the application range can be generally divided into three temperature zones: low temperature zone (below -120℃), mainly used for gas separation, gas liquefaction, superconductivity and aerospace, etc.; medium temperature zone (-120-5 ℃), mainly used for refrigeration, freezing, chemical pharmaceutical and product production process...
Text label: purification pharmaceutical cleanroom refrigeration scheme, purification workshop scheme, purification workshop equipment
Refrigeration equipment scheme of purification pharmaceutical cleanroom
Refrigeration technology is widely used, and the application range can be generally divided into three temperature zones: low temperature zone (below -120℃), mainly used for gas separation, gas liquefaction, superconductivity and aerospace, etc.; medium temperature zone (-120-5 ℃), mainly used for refrigeration, freezing, chemical pharmaceutical and product production process, etc.; high temperature area (5-80 ℃), mainly used for air conditioning, dehumidification, heat pump evaporation and heat pump drying. Refrigeration should be completed with the help of special devices. The actual process and device for realizing refrigeration include: methods, principles, and refrigerants for obtaining low temperature, that is, refrigeration principles; work machines that increase the pressure of refrigerants, namely refrigeration compressors; complete refrigerants Auxiliary equipment for heat absorption or heat release, throttling, safe operation and economical operation, namely refrigeration equipment, etc.
Vapor compression refrigeration equipment is compact, and can be made into large, medium and small to meet the needs of different occasions. It can achieve a wide range of refrigeration temperatures, from slightly lower than ambient temperature to -150℃. It has high cycle efficiency in the temperature range; according to the actual application, it can be divided into single-stage, multi-stage, cascade and other cycles. Single-stage vapor compression refrigeration uses refrigerant to absorb heat in the process of vaporizing from liquid state to vapor state, and the temperature of the cooled medium is reduced due to loss of heat to achieve the purpose of refrigeration. After the refrigerant becomes vapor, it needs to be compressed, Condensing, then re-evaporating to absorb heat; the single-stage vapor-compression refrigeration cycle system constituted according to the principle of vapor-compression refrigeration is composed of pipes of different diameters and components in which the refrigerant changes in different states, which are connected in series to form a In a closed circulation loop, the refrigerant is loaded into the system circuit, and the refrigerant can circulate continuously in this circulation loop; the refrigerant will change from liquid to gaseous state when it flows through each relevant part of the refrigeration cycle system, and then again. The repeatability of changing from gas to liquid is constantly changing. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for purification workshops and dust-free workshops.
The refrigeration compressor is the power of the refrigeration cycle. It is driven by a prime mover such as a motor to work. It not only draws out the vapor in the evaporator in time and maintains low temperature and low pressure, but also increases the pressure and pressure of the refrigerant vapor through compression. The temperature creates the conditions for transferring the heat of the refrigerant vapor to the external environmental medium, and compresses the low-temperature and low-pressure refrigerant vapor to a high-temperature and high-pressure state, so that the refrigerant vapor can be condensed by using normal temperature air or water as the cooling medium. The condenser is a heat exchange device that uses the ambient cooling medium air or water to take away the heat of the high-temperature and high-pressure refrigeration vapor from the refrigeration compressor, so that the high-temperature and high-pressure refrigerant vapor is cooled and condensed into a high-pressure and normal-temperature refrigerant liquid; the condenser The amount of heat dissipated to the cooling medium is proportional to the size of the condenser area, and is proportional to the temperature difference between the temperature of the refrigerant vapor and the temperature of the cooling medium. The high pressure and normal temperature refrigerant liquid cannot be directly sent to the low temperature and low pressure evaporator. According to the principle of one-to-one correspondence between the saturation pressure and the saturation temperature, the pressure of the refrigerant liquid is reduced, thereby reducing the temperature of the refrigerant liquid, and the high pressure and normal temperature refrigerant liquid is passed through. The throttling element of the pressure-reducing device obtains low-temperature and low-pressure refrigerant, which is then sent to the evaporator to absorb heat and vaporize. The commonly used throttling elements in vapor compression refrigeration systems include expansion valves and capillaries.
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