Low-temperature exhaust air source spray heat capturing efficient water source heat pump fresh air system

Abstract

The invention relates to a low-temperature exhaust air source spray heat capturing efficient water source heat pump fresh air system. The low-temperature exhaust air source spray heat capturing efficient water source heat pump fresh air system has the advantages that antifreeze fluid is sprayed to capture heat from a low-temperature exhaust air source, and the heat is boosted to be the heat of high quantity by a water source heat pump and then used for heating fresh air of a mine, so that the freezing of spray water is avoided; the heat pump absorbs heat in a high flow manner so as to increase evaporating temperature and energy efficiency; a fluid supply pool and a fluid return pool are subjected to cold-hot separation, and the heat pump is enabled to obtain fluid from the fluid supply pool which is heated after spray heat capturing, so as to increase the evaporating temperature and the energy efficiency; a spraying chamber is enabled to obtain fluid from the fluid return pool which is cooled after the heat pump carries out evaporating heat absorption, so as to increase heat exchange temperature difference and heat capturing efficiency; the temperature of supply water of the heat pump is reduced so as to increase heating efficiency; and the heat pump supplies heat in a low flow manner so as to reduce circulatory pumping power.

Description

(1) Technical field [0001] The invention relates to a low-temperature exhaust air source spraying and high-efficiency water source heat pump fresh air system, which is about extracting heat from the low-temperature exhaust air source of a mine by spraying antifreeze, and then raising it to high-level heat by a high-efficiency water source heat pump, and reheating Mine fresh air, the technology to prevent the fresh air shaft wall pipeline from freezing. (2) Background technology [0002] The winter heating and anti-freezing of coal mine fresh air shaft wall pipelines, the hot water for bathing in employee bathrooms, and the heating of coal mine ground buildings all require huge high-level heat consumption; while the traditional method is to provide heat sources through coal-fired boilers to meet the above needs. It not only consumes a large amount of coal, but also seriously pollutes the environment. On the other hand, the exhaust air volume of the mine is huge, and the exha...

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Problems solved by technology

[0015] 3. If the heat pump unit still absorbs heat and evaporates at the standard flow rate with a temperature difference of 5°C between the inlet and outlet water, then when the temperature of the exhaust air source of the mine is lower than 12°C, the evaporation temperature will drop rapidly, and the heat absorption and heating energy efficiency of the heat pump will be lower. also decays quickly;

[0016] 4. If the heat pump unit still maintains heating at the standard water supply temperature of 45°C, when the mine exhaust air source temperature is lower than 12°C, the heating capacity and heating energy efficiency of the heat pump will also decay quickly

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