Integrated plate type solar heat pump water heating apparatus

Abstract

The invention discloses an integration flat plate solar heat pump hot water device which combines a flat plate type solar water heater and a heat pump hot water system into one body, wherein the outlet end of a condensing agent tube of an integration flat plate type solar heat collector (1) is connected with the inlet end of a compressor (2) through a first check valve (10), the outlet end of the compressor is connected with the inlet end of a condensing agent tube of a bushing condensator (3), the outlet end of the condensing agent tube of the bushing condensator is connected with the inlet end of a three-way valve (5) through an electromagnetic valve (f) and an electric expansion valve (4); the outlet end of the three-way valve is divided into two ways, wherein one way is connected with the inlet end of the condensing agent tube of the integration flat plate type solar heat collector, the other way is connected with the inlet end of an outdoor air source evaporator (6), and the outlet end of the outdoor air source evaporator is connected between the first check valve (10) and the inlet end of the compressor through a second check valve (110); a water loop of the integration flat plate type solar heat collector (1) is communicated with a first water tank (I), and a water loop of the bushing condensator is communicated with a second water tank (II).

Description

technical field [0001] The invention is an integrated system combining a traditional flat-plate solar water heater and a heat pump hot water system, and belongs to the field of solar heat utilization and the technical field of solar water heaters and heat pumps. Background technique [0002] With the development of solar thermal utilization to this day, great progress has been made both in terms of heat collection efficiency of collectors and in terms of cost performance. Solar water heaters have a very broad market in China, and with the continuous aggravation of the energy crisis, the use of solar energy has been paid more and more attention by the country. However, the most unfavorable factor of solar energy utilization is the instability of solar radiation, and solar water heaters cannot guarantee hot water needs anytime and anywhere. Most of the solar water heaters on the market today use auxiliary electric heating to make up for it. This unreasonable use of high-level...

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Problems solved by technology

[0004] The direct expansion solar heat pump has a compact structure. Since the refrigerant absorbs heat and evaporates, the temperature of the heat collecting plate is relatively low and evenly distributed, and the heat collection efficiency can always be kept at a high level. However, when the solar radiation is sufficient, the heat pump is also kept on, resulting in The indirect expansion solar heat pump can directly generate hot water for use when the solar radiation is sufficient, but when it is used to provide hot water for the evaporator, there will be heat loss in the transmission pipeline, and the heat collection efficiency will decrease with the collection efficiency. The temperature of the hot plate is increased and the temperature is significantly reduced

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