Liquid phase-change heat transfer type pumping cooling system with booster pump

Abstract

The invention discloses a liquid phase-change heat transfer type pumping cooling system which comprises an evaporator system (2), a liquid feeding pump (6), a condenser (5), a pipeline system and a booster pump (3). The evaporator system (2) is arranged in electrical equipment (1); the liquid feeding pump (6) is used for feeding liquid to the evaporator system (2); cooling media can evaporate in the evaporator system (2) to generate steam; the condenser (5) is used for condensing the steam exhausted from the evaporator system so as to generate single-phase liquid; the booster pump (3) is arranged in the pipeline system at an outlet of the evaporator system and is used for reducing the evaporating pressure and increasing the condensing pressure simultaneously. The evaporator system (2) can comprise one evaporator or a plurality of evaporators, each evaporator comprises heat pipes (7) and a heat exchanger (9), the evaporator system is used for dissipating heat by the evaporators to cool the electrical equipment, and the heat is generated in the electrical equipment. The liquid phase-change heat transfer type pumping cooling system has the advantage that the electrical equipment with distributed heat sources can be cooled by the cooling system efficiently.

Description

technical field [0001] The invention relates to a phase-change heat transfer cooling system, more specifically, to a liquid phase-change heat transfer pumping cooling system with a booster pump for cooling electrical equipment by using liquid phase-change heat transfer. Background technique [0002] Thermal characteristics are very important for electrical equipment, especially low-voltage and high-voltage electrical equipment with high power consumption or higher IP (enclosure protection class) requirements. When the electrical equipment is working, its internal temperature is closely related to the reliability / performance / safety of the electrical equipment. On the other hand, standards such as IEC / GB / IEEE have specific required temperature values ​​for electrical equipment and its internal components. Therefore, a suitable cooling method plays an important role in product design. [0003] Currently, the cooling method commonly used to cool low-voltage and medium-voltage ...

AI Technical Summary

Problems solved by technology

The pumped liquid cooling system is suitable for the heat dissipation of electrical and electronic devices with concentrated heat sources (such as microprocessors, IGBTs, power semiconductor devices, etc.), which usually place the electronic devices that need to be cooled on a heat conduction platform that surrounds the heat pipe. Heat conduction transfers the heat generated by electronic devices to the liquid in the heat pipe to take away the heat, but for distributed heat sources, such as low-voltage or medium-voltage electrical cabinets with scattered heat sources, since the heat sources are scattered, the cooling system poor cooling

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