Internal and external cooling isolation water cooling system

Abstract

The invention discloses an internal and external cooling isolation water cooling system, which is characterized in that different internal and external cooling media divide the system into two non-intersected loops, and intermediate heat exchange equipment such as a plate heat exchanger is added in each loop to solve the problem that the system cannot be applied outdoors in most northern areas; the two non-intersected loops can effectively reduce the dependence on the environment condition during water cooling application; meanwhile, the electric three-way valve is adopted for dynamically adjusting the cooling capacity, the situation that some cooled devices are insufficient in cooling capacity and some cooling capacities are excessive is avoided, and therefore the power electronic devicesof the cooled devices are efficiently cooled, the service life of the power electronic devices is prolonged, and the reliability of the power electronic devices is improved; on the other hand, the conductivity of the cooling medium is controllable; the internal cooling and the external cooling share one set of nitrogen pressure stabilizing system, so that the system can keep stable flow and keepthe temperature of a cooled device running in a high-efficiency state.

Description

technical field [0001] The invention relates to a cooling system for high-power electric electronic devices, in particular to a water-cooling system with internal and external cooling isolation. Background technique [0002] With the development of science and technology and economy, the external dimensions of high-power electronic components are reduced, and the heating power of electronic devices per unit area is increased. Traditional natural heat dissipation and forced air cooling can no longer meet the heat dissipation requirements of some electronic devices. Low power consumption is gradually accepted by the society. With the lowering of the technical threshold, water cooling has been gradually applied to converter stations and server centers. [0003] With the wide application of water-cooling systems, the limitations of its medium are gradually becoming prominent. In practical applications, in order to meet its service life and safety, internal cooling devices use pu...

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Problems solved by technology

[0006] By adopting the above technical scheme, the internal cooling main circulation loop and the external cooling main circulation loop share a plate heat exchanger to separate the internal cooling main circulation loop and the external cooling main circulation loop into two disjoint loops, and the plate heat exchanger is guaranteed When the medium of the internal cooling main circulation loop is running stably, the temperature of the medium in the external cooling main circulation loop is increased through the heat exchange between the internal cooling main circulation loop and the external cooling main circulation loop, so that the medium of the external cooling main circulation loop runs stably and solves the problem of the system The problem that it cannot be applied outdoors in most areas of the north

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