Multi-stage-cutting heat dissipation device and air cooling system based on multi-stage cutting heat dissipation device

Abstract

The invention belongs to the technical field of cooling, and discloses a multi-stage-cutting heat dissipation device and an air cooling system based on the multi-stage-cutting heat dissipation device. The multi-stage-cutting heat dissipation device comprises a heat dissipation device water inlet pipe, a heat dissipation device water outlet pipe and a plurality of heat dissipators which are sequentially connected in series; a heat dissipator water inlet pipe and a heat dissipator water outlet pipe are arranged on each heat dissipator; one end of the heat dissipation device water inlet pipe is used for inputting circulating water, the other end of the heat dissipation device water inlet pipe communicates with the heat dissipator water outlet pipe of the first heat dissipator, one end of the heat dissipation device water outlet pipe is used for outputting circulating water, and the other end of the heat dissipation device water outlet pipe communicates with the heat dissipator water outlet pipe of the second radiator; a heat dissipator water outlet valve is arranged on the heat dissipator water outlet pipe of the second heat dissipator; heat dissipator water inlet valves and heat dissipator bypass pipes are arranged on the heat dissipator water inlet pipes, and the heat dissipator water inlet valves are located between the heat dissipator bypass pipes and the heat dissipators; and each heat dissipator bypass pipe communicates with the heat dissipation device water outlet pipe and is provided with a heat dissipator bypass valve. Cutting of multi-stage heat dissipators is realized, adjustment is flexible, the range is large, and stable operation at the low temperature in winter can be achieved.

Description

technical field [0001] The invention belongs to the technical field of cooling, and relates to a multi-stage cutting heat dissipation device and an air cooling system based thereon. Background technique [0002] The air-cooling system is a cooling method in which the cooling water exchanges heat with the ambient air through the radiator and adopts natural ventilation or mechanical ventilation. The air-cooled radiator is exposed to the atmospheric environment. When the heat load is determined, its cooling capacity directly depends on the temperature of the ambient air. In the low temperature state in winter, due to the large heat exchange area and the relatively small heat storage capacity of the water-air heat exchanger (cooling triangle), if the heat input is not enough to maintain the temperature of the cooling triangle, it will cause the inside of the finned tube bundle to be blocked. Ice blocks can deform or crack radiator finned tubes, causing permanent damage. The po...

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Problems solved by technology

However, this method leads to an increase in the flow rate of other radiator tube bundles, which improves the heat dissipation efficiency that is not needed in winter, and offsets the favorable antifreeze conditions that partially cut off the radiator area; The flow rate is reduced, which deviates from the high-efficiency operating point; and the flexibility of operation adjustment is not high, the adjustment span of the outlet water temperature is large, and even the cracked finned tubes may still occur

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