Thermoelectric decoupling system and operation method of heat storage tank coupled compression heat pump
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A compression heat pump and heat storage tank technology, which is applied in heating systems, heat pumps, heating methods, etc., can solve the problems of limited flexibility of cogeneration units, restrictions on the application of heat storage tanks, and large volume of heat storage tanks , to achieve the effect of lowering the temperature, improving the performance of deep peak regulation, and simplifying the system
Active Publication Date: 2020-12-08
XI AN JIAOTONG UNIV
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[0003] However, the heat storage tank is large in size, covers a large area, and requires a large investment, which greatly restricts the application of the heat storage tank in thermal power plants. limit
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[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0019] like figure 1 As shown, a thermoelectric decoupling system of a heat storage tank coupled with a compression heat pump in the present invention is composed of a heat storage tank 1, a hot water pump 21, a heat storage hot water regulating valve 22, a first exothermic hot water regulating valve 23, a second Two exothermic hot water regulating valve 24, heat network heater 3, heat user 4, heat network circulating pump 5, cold water pump 61, heat storage cold water regulating valve 62, first exothermic cold water regulating valve 63, second exothermic cold water Regulating valve 65, evaporator 641, throttle valve 642, compressor 643, condenser 644 and regulating valve 7;
[0020] The hot water pipeline of the heat storage tank 1 is connected to the outlet of the hot water pump 21 through the heat storage hot water regulating valve 22, the inlet of the ho...
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Abstract
The invention discloses a heat-electrolysis coupling system of a heat-storage tank coupling compression type heat pump and an operation method. The heat-electrolysis coupling system comprises a heat storage tank, a hot water pump, a heat storage hot water valve, a first heat release hot water adjusting valve, a second heat release hot water adjusting valve, a hot net heater, a hot user, a hot netcirculating pump, a cold water pump, a heat storage cold water adjusting valve, a first heat release cold water adjusting valve, a second heat release cold water adjusting valve, an evaporator, a throttling valve, a condenser and a compressor. The invention further discloses the operation method of the heat-electrolysis coupling system. According to the heat-electrolysis coupling system, the compression type heat pump is additionally arranged in a cold water pipeline of the heat storage tank, so that the temperature of the cold water entering the heat storage tank is reduced, the temperature difference of the cold water and the hot water of the heat storage tank is expanded, and the water amount of the heat storage tank is reduced under the condition of the same heat storage capacity, so that the volume of the heat storage tank is reduced, and meanwhile, the compression type heat pump consumes part of electric energy, so that the external power supply amount is reduced, and the deep peak shaving performance of a combined heat and power generation unit is improved.
Description
technical field [0001] The invention relates to a thermoelectric decoupling system, in particular to a thermoelectric decoupling system and an operation method in which a heat storage tank is coupled with a compression heat pump. Background technique [0002] With the increase in the proportion of new energy power generation, the phenomenon of "abandoning wind" and "abandoning light" is becoming more and more serious. Improving the peak-shaving capacity of the power grid and increasing the intensity of new energy consumption are new challenges in the new era of the power generation industry. The improvement of the flexibility of thermal power units is of great significance to solve the problem of insufficient peak regulation in the power grid, especially the improvement of the flexibility of cogeneration units. Due to its own characteristics, the thermal power unit has a certain "coupling" relationship between its electrical output and thermal output. How to decouple this re...
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