Solar photovoltaic and photothermal cogeneration type hybrid heat pump

Abstract

The invention discloses a solar photovoltaic and photothermal cogeneration type hybrid heat pump, and aims to provide a novel heat pump which uses solar energy as main energy and is used for family heating in winter, refrigeration in summer and hot water supply. The solar photovoltaic and photothermal cogeneration hybrid heat pump comprises a solar collection system and a hybrid heat pump system; the solar collection system is a photovoltaic and photothermal cogeneration type system and comprises a solar film battery, a solar heat collector, a phase change heat accumulator and an accumulator; and the rear of the film battery is provided with a fluid passage which is connected with the heat collector. The heat collector comprises the heat pump system consisting of an ammonia absorption refrigeration system, an ammonia compression and refrigeration system and an ammonia diffusion and refrigeration system which are connected in series and coupled, share heat exchange equipment and throttling equipment and a refrigerating medium; and the heat pump comprises a liquid accumulator, a solution pump, a generator, a dephlegmator, a condenser, a compressor, a throttle valve, an evaporator and an absorber which are sequentially communicated by pipes. The generator of the heat pump is provided with phase change heat accumulator heat supply; and a secondary compressor of the heat pump is provided with accumulator power supply.

Description

technical field [0001] The present invention relates to a kind of heat pump equipment, more specifically, the present invention relates to a combination of compression, absorption and diffusion, which uses solar energy as the main energy source, supplemented by partial electric energy, and uses ammonia as the working medium. hybrid heat pump. Background technique [0002] At present, there are two main research directions for solar heat pump systems. The first type: convert solar energy into electrical energy, and the electrical energy drives the compression heat pump; the second type: convert solar energy into heat energy, and the heat drives the air conditioner. For the first type of solar heat pump system, there are two ways to convert solar energy into electrical energy: the solar photovoltaic power generation system uses photovoltaic cells to convert solar energy into electrical energy, and the second is to convert solar energy into high-temperature heat energy to driv...

AI Technical Summary

Problems solved by technology

In terms of low-grade waste heat or heat source, a single conventional refrigeration method is difficult to meet the requirements. Generally, multiple methods of composite refrigeration are used, such as the "Ammonia Water Absorption and Compression Composite Refrigeration Cycle System and Refrigeration Cycle Method" (Patent No. 200710022954.2) proposes a refrigeration cycle system that couples the absorption system and the compression system in series, which can operate efficiently under low-grade waste heat sources, but the system still needs to use a high-pressure solution pump , more suitable for applications and large-scale refrigeration systems, but limited in some small-scale refrigeration equipment or occasions with strict volume requirements

[0010] So far, there are no heat pump systems on the market that run on solar energy and do not require concentrated sunlight

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