Low-quality waste heat recycling system and control method thereof

Abstract

The invention provides a low-quality waste heat recycling system and a control method thereof. The low-quality waste heat recycling system comprises a liquid cooling system which comprises a cooling tail end, a cooling inlet pipe and a cooling return pipe, and the cooling inlet pipe and the cooling return pipe are connected with the cooling tail end so that cooling liquid can flow; the heating system comprises a heating device, a heating tail end, a heating inlet pipe, a heating return pipe and a heat exchange outlet pipe; and the heat exchanger is connected with the cooling inlet pipe and the cooling return pipe of the liquid cooling system, and is connected with the heating outlet pipe and the heat exchange outlet pipe of the heating system, so that the cooling liquid of the liquid cooling system exchanges heat with the circulating liquid of the heating system. After the cooling liquid of the liquid cooling system absorbs the heat of the low-quality heat source, the heat is transferred to the circulating liquid of the heating system through the heat exchanger, the heat of the low-quality heat source is recycled, after the circulating liquid absorbs the heat of the low-quality heat source, the energy consumption of the heating device can be reduced when the heating device is used for heating, and the purpose of saving energy is achieved.

Description

technical field [0001] The invention relates to the technical field of mining equipment, in particular to a low-quality waste heat recovery and utilization system and a control method thereof. Background technique [0002] For the current electronic equipment, it not only generates a lot of heat, but also works 24 hours a day, which is equivalent to a continuous and stable heat source. Usually, electronic equipment is cooled by air cooling. The cooling principle of air cooling is to use air to take away heat, which is inconvenient for centralized recovery of heat. It can only be directly scattered into the atmosphere to waste heat. At present, due to the increase in the power density of computing electronic equipment, the efficiency of air cooling has reached a bottleneck. More and more heat dissipation systems use liquid cooling to dissipate heat, and liquid cooling systems can facilitate centralized recovery of heat. [0003] Although limited by the working temperature of...

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Problems solved by technology

[0004] Based on this, it is necessary to provide a low-quality waste heat recovery system and its control method that can reliably use waste heat from low-quality heat sources to effectively solve the problem of energy waste caused by the unreliable recovery of heat from electronic equipment as a heat source.

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