A high-efficiency direct expansion solar heat pump and water source heat pump coupled heating system
A technology of solar heat pump and water source heat pump, which is applied in the direction of solar heating system, solar heat storage, solar thermal energy, etc., can solve problems such as instability and intermittent solar resources, and achieve the effect of improving system performance
Active Publication Date: 2019-07-12
大连葆光节能空调有限公司
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Problems solved by technology
[0003] At present, to solve the problem of intermittency and instability of solar energy resources, how to develop high-efficiency solar heat collection and thermal storage technology coupled with water source heat pump has become a bottleneck for popularization and application
Method used
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specific Embodiment approach
[0019] Such as figure 1 As shown, the refrigerant absorbs solar energy through the solar heat collector (9), and enters the phase change heat storage device (12), compressor (13), heat storage tank (6), and electronic expansion valve (8) in sequence, completing a The closed circuit finally stores the solar energy in the heat storage tank (6). The water body of the low-level cold and heat source is pumped into the automatic decontamination device (2) by the water pump (1), and the dirt and sundries are removed; the filtered water enters the heat exchanger (3) to exchange heat with the intermediate water. Driven by the intermediate water circulation pump (5), the intermediate water enters the heat exchanger (3) to extract the heat in the low-level cold and heat source water body, and then is further heated by the heat storage tank (6), and then enters the water source heat pump unit (14 ) inside the evaporator releases heat, thus completing a cycle. The water source heat pump ...
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The invention discloses an efficient direct-expansion solar heat pump and water source heat pump coupled heat supplying system. The system is characterized in that the angle of a solar heat collector is adjusted in real time through a full-automatic solar tracking device, therefore, sunlight vertically irradiates the solar heat collector, and maximum solar radiation energy is achieved; by arranging a phase change heat storage device on a direct-expansion solar heat pump system, the evaporating temperature of a refrigerating agent is kept within a certain range, and then influences of changes of the solar radiation intensity to the system stability are greatly reduced; solar energy is stored through a heat storage water tank, intermediate water is preheated through the heat storage water tank, therefore, heat obtained through the direct-expansion solar heat pump system is effectively transmitted to a user, and then effective coupling of a solar heat collection and heat storage technology and a water source heat pump is completed. The efficient direct-expansion solar heat pump and water source heat pump coupled heat supplying system has the advantages that the problems of intermittency and unstability of solar energy sources are effectively solved, it is guaranteed that the system can stably supply energy, the system performance is significantly improved, and high efficiency and environmental friendliness are achieved.
Description
technical field [0001] The invention belongs to the technical field of energy utilization, and relates to a high-efficiency direct expansion solar heat pump and a water source heat pump coupled heating system. Background technique [0002] The use of cold and heat sources such as sewage, seawater, and groundwater can alleviate the current energy shortage situation, and has good energy-saving effects, environmental protection benefits, and economic benefits. It will save increasingly scarce fresh water resources, open up new areas for energy utilization, and provide comprehensive A new way of thinking is provided for comprehensive utilization of water resources. Solar energy is inexhaustible and clean renewable energy. my country has a vast territory and abundant solar energy resources. Solar radiation is dispersive. The collector is a device that collects solar energy and converts it into heat energy. The performance of the collector directly affects the quality of the col...
Claims
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IPC IPC(8): F25B30/06F25B30/02F24S50/20F24S60/10F25B49/02
CPCF24S50/20F24S60/00F25B30/02F25B30/06F25B49/02Y02E10/47
Inventor 毕海洋
Owner 大连葆光节能空调有限公司