Solar-assisted air source heat pump multi-family hot water supply system

Abstract

The invention discloses a multi-family solar hot water supply system with an auxiliary air-source heat pump. The multi-family solar hot water supply system is characterized in that a water outlet of a solar collector array is respectively connected with a heat-insulation water tank and a heat storage pond by a three-way valve, a water outlet of the heat storage pond is connected with a header, a water outlet of the header is connected with a water inlet of the solar collector array, and another water outlet of the header is connected with a water inlet of the heat-insulation water tank; and the air-source heat pump is connected with the heat-insulation water tank. The multi-family solar hot water supply system has the advantages that the multi-family solar hot water supply system is high in heat efficiency, sensible heat of solar energy can be stored and dispensed by the aid of the heat storage pond, and stored heat can be reused; a heat supply strategy can be conveniently adjusted according to the intensity of the solar energy, the air-source heat pump can be used for auxiliary heating as needed, and the integral system is flexible in use; as the air-source heat pump has merits of flexibility, high efficiency, energy conservation and the like, the air-source heat pump and the solar energy are used together to supply hot water, and shortcomings of the solar energy can be overcome; and the proper temperature of a biogas digester can be maintained by the hot water of a bypass pipe, and accordingly biogas can be assuredly generated stably and efficiently.

Description

technical field [0001] The invention relates to daily heat supply for households, in particular to a solar-assisted air source heat pump multi-household hot water supply system, and belongs to the technical field of heat supply. Background technique [0002] In some rural areas, solar water heaters are used more. This kind of solar water heater is often used by a single household, and the households are independent of each other without forming a union. Moreover, at different times of the day, due to the different intensity of sunlight, there is a big difference in the heat energy contributed by the solar collector. The light is usually the strongest at noon, but the amount of hot water used is often less, and at night, it is the large amount of heat used. When there is water, there is no light at all at this time. Therefore, how to accumulate solar energy and release it when needed is a problem that needs to be solved, otherwise the effectiveness of solar heat collectors ...

AI Technical Summary

Problems solved by technology

This kind of solar water heater is often used by a single household, and the households are independent of each other without forming a joint

Moreover, at different times of the day, due to the different intensity of sunlight, there is a big difference in the heat energy contributed by the solar collector. The light is usually the strongest at noon, but the amount of hot water used is often less, and at night, it is the large amount of heat used. When the water is in the water, the light is completely absent at this time

Therefore, how to accumulate solar energy and release it when needed is a problem that needs to be solved, otherwise the effectiveness of solar collectors will be difficult to really fully exert

At the same time, solar energy has the characteristics of intermittent and unstable, which restricts the large-scale application of solar energy.

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