Cooling system for electrical and electronic equipment

Abstract

The invention provides a cooling system for electrical and electronic equipment. The cooling system comprises a heat dissipation device, a condenser, a refrigerant release valve and a processing unit, wherein the heat dissipation device and the condenser are connected with each other through a cooling pipeline. The refrigerant release valve is arranged on the cooling pipeline, and the processing unit is electrically connected with the heat dissipation device, the condenser and the refrigerant release valve. A flowing refrigerant is arranged in the cooling pipeline; and the processing unit controls the dryness of the outlet of the heat dissipation device to be smaller than a preset value, so that it is ensured that the refrigerant in the cooling pipeline between the outlet of the heat dissipation device and the inlet of the condenser is in a vapor-liquid two-phase state, and the mass fraction of the vapor state is lower than a preset proportion. According to the cooling system, cooling and fire extinguishing are achieved by automatically controlling the refrigerant release valves to release the refrigerant, the refrigerant release valves can be evenly arranged to release the refrigerant, and heat dissipation and fire extinguishing blind areas are reduced to a great extent. And moreover, electrical and electronic devices or other articles cannot be damaged, and the refrigerant amount required by fire extinguishing is much smaller than that required by water mist or inert gas and the like.

Description

technical field [0001] The invention relates to the technical field of heat dissipation of electrical and electronic equipment, in particular to a cooling system for electrical and electronic equipment. Background technique [0002] With the rapid development of rail transit, new energy (such as wind power) and other industries, the power consumption density of electrical and electronic equipment has greatly increased, and the single-phase liquid cooling method is becoming more and more difficult to meet the needs of applications. At the same time, the operational safety of electrical and electronic equipment is crucial to fields such as rail transit and new energy. Once the equipment is out of control and causes problems such as fire, it will cause immeasurable losses to people, equipment and energy production. Therefore, many active or passive measures are adopted in the industry to prevent and deal with the risk of fire. [0003] However, the cooling and fire extinguish...

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Problems solved by technology

[0003] However, the cooling and fire extinguishing systems in the prior art have poor cooling and fire extinguishing effects, or water is used as the coolant and fire extinguishing agent, which easily leads to equipment short circuit and irreparable damage, and the corrosion of water can also cause other destructive and fire extinguishing effects. Hazardous, or use high-temperature meltable materials such as low-melting point alloys to make liquid cooling units, resulting in high production costs

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