Cryogenic Pump of Three Basic Principles
1. Cryogenic pumps temperature control
The working temperature of a cryogenic pump is usually around minus 100 ℃, so temperature control is the key to its operation. Cryogenic pumps typically use liquid nitrogen or refrigerant as the cooling medium to control the operating temperature. At the same time, the low-temperature pump also needs to be heated to prevent the occurrence of condensation caused by the supercooling of the cooling medium. The stability of temperature control has a significant impact on the efficiency and lifespan of cryogenic pumps.
2.Cryogenic pumps sealing performance
Cryogenic pumps are typically used to transport low-temperature liquids or gases, therefore requiring very high sealing performance. Low temperature liquids and gases have strong permeability. If the pump does not have good sealing, it will cause liquid or gas leakage inside the pump, seriously affecting the efficiency and safety of the pump. Therefore, low-temperature pumps usually use high-performance sealing materials and pay attention to the details of sealing in their design.
3. Cryogenic pumps material selection
The working environment of cryogenic pumps is usually very harsh, requiring materials that can withstand low temperatures, corrosion, and high pressures. Therefore, the selection of materials is crucial in the design and manufacturing of cryogenic pumps. Common materials include steel, stainless steel, copper, aluminum, etc. These materials have good corrosion resistance and high temperature strength, which can ensure the reliability and safety of low-temperature pumps.
In short, the working principle of a cryogenic pump is different from that of a regular pump, and it is necessary to master its three basic principles: temperature control, sealing, and material selection. Understanding these basic principles is crucial for ensuring the normal operation of cryogenic pumps and extending their lifespan.
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