Solar water-heating and air-conditioning heating system employing gas or oil to aid heating

Abstract

The invention relates to a solar energy hot water and air conditioning heating system which uses fuel gas or fuel oil to heat. It comprises a solar energy collector, a heat exchange water heater water bank, an auxiliary heating furnace, and an air conditioning heat collector. It is characterized in that: the heat exchange water heater water bank comprises a heat exchange heating water bank and a heat storage water bank, while they are integrated or separated and connected between a heat exchange cycle pump; the air conditioning heat collector via the heat cycle pump and the auxiliary heating furnace is connected the pipeline of heat exchange heating water bank; the system can control the working temperatures of heat exchange heating water bank and the heat storage water bank according to the heat collection priority mode. The invention combines the solar energy collector, the heat exchange heating water bank, the heat storage water bank and the auxiliary heating furnace to realize theselective compensation utilization of several energies; and under the preset heat collection priority mode, to uses the energy with lower cost and less pollution and utilize the solar energy most. Itcan reduce the energy consumption of the building with hot water supply and air conditioners, reduce the environment pollution with auxiliary heating devices, avoid the effects of load vibration between the life and air conditioning heat collection via arranging the heat storage water bank and the auxiliary heating furnace, and improve the quality of hot water supply.

Description

technical field [0001] The invention relates to a solar hot water and air-conditioning heating system using gas or fuel oil for auxiliary heating, and belongs to the technical field of solar energy utilization. Background technique [0002] Building energy consumption mainly includes heating, air conditioning, hot water supply, ventilation, lighting, and home appliances, among which air conditioning heating accounts for the largest proportion, followed by hot water supply. Therefore, in winter in heating areas, solar hot water and air conditioning heating There is no doubt that the system should adopt the working mode of air conditioning and heating priority. Solar energy is a renewable energy source, and the solar water heating system has the characteristics of no pollution, energy saving, environmental protection, safety, etc. However, the existing solar hot water and air-conditioning heating systems that use gas, oil-fired water heaters and electric heating as parallel a...

AI Technical Summary

Problems solved by technology

Solar energy is a renewable energy source, and the solar water heating system has the characteristics of no pollution, energy saving, environmental protection, safety, etc. However, the existing solar hot water and air-conditioning heating systems that use gas, oil-fired water heaters and electric heating as parallel auxiliary heat sources still have shortcomings: First, under the principle of separating domestic hot water from heating hot water, the output of domestic The temperature of hot water or heating hot water is greatly affected by different load changes. For example, when the temperature drops and the heating load increases, the output temperature of domestic hot water will not meet the output requirements; , when the consumption of domestic hot water increases, the supply of heating heat will not meet the output requirements. Therefore, the quality of the two kinds of hot water supply is not stable enough, which makes the auxiliary heating device start-up frequency too high, and also makes the use of The second is that in a given heating operation mode, it is not possible to select the priority mode according to the energy cost and maximize the solar energy utilization rate of the system, including the priority use of solar energy during the day and the priority use of peak and valley power at night, and make the water tank and The operating temperature setting of the system is matched with the maximum efficiency operating temperature range of the solar collector. Therefore, the actual utilization efficiency of solar energy is not high enough, which makes the system use cost high; the third is the gas or oil auxiliary heating device The increase in the number reduces the economy of the system setting, and the degree of integration with the building interior becomes worse. Therefore, it is necessary to further improve the system, increase the utilization rate of solar energy and reduce the cost

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