Flowing phase-change energy storing type falling-film evaporating heat pump unit
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A technology of heat pump units and falling film evaporation, which is applied in heat pumps, evaporation, horizontal tube evaporators, etc., can solve problems such as unbalanced use of cold/heat in two directions, constraints on the properties of energy storage materials, and difficulty in improving heat exchange efficiency, etc., to achieve structural Reasonable, ensure uniformity, improve the effect of heat transfer efficiency
Active Publication Date: 2015-03-11
HARBIN INST OF TECH
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Problems solved by technology
[0003] The present invention aims to solve the problem of large volume of accumulator in the system, equipment and method of the existing sleeve-type energy storage type multi-source heat pump integrated system, difficulty in improving heat exchange efficiency, constraints by the properties of energy storage materials, and two-way cooling / heating. Taking advantage of the unbalanced problem, a falling film evaporation heat pump unit with mobile phase change energy storage is provided
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specific Embodiment approach 1
[0022] Specific implementation mode one: combine Figure 1 to Figure 6Describe this embodiment, this embodiment includes a compressor 1, an electric four-way reversing valve 2, an outdoor finned tube air heat exchanger 3, a refrigerant / water dry heat exchanger 4, a hot and cold water circulation pump 5, Falling film energy storage evaporator 6, stainless steel magnetic pump 7, energy storage tank 8, water pump 9, solar heat collector 10, first pipeline 11, second pipeline 12, third pipeline 13, fourth pipeline 14. Fifth pipeline 15, sixth pipeline 16, seventh pipeline 17, eighth pipeline 18, ninth pipeline 19, tenth pipeline 20, eleventh pipeline 21, twelfth pipeline 22. Thirteenth pipeline 23, fourteenth pipeline 24, fifteenth pipeline 25, sixteenth pipeline 26, seventeenth pipeline 27, eighteenth pipeline 28, nineteenth pipeline 29 , the twentieth pipeline 30, the first three-way 31, the second three-way 32, the third three-way 33, the fourth three-way 34, the fifth three-w...
specific Embodiment approach 2
[0023] Specific implementation mode two: combination figure 1 To describe this embodiment, the refrigerant selected for the falling film evaporation energy storage heat pump unit of this embodiment is R134a refrigerant. R134a refrigerant is a medium and low temperature environmentally friendly refrigerant with good overall performance. Other components and connections are the same as those in the first embodiment.
specific Embodiment approach 3
[0024] Specific implementation mode three: combination Figure 7 and Figure 8 To illustrate this embodiment, the throttling orifice R4 of this embodiment is composed of two orifice R41 connected in series, and each orifice R41 is provided with several throttling holes R411. The existing orifice plate R41 is a single hole structure. Other compositions and connections are the same as those in Embodiment 1 or 2.
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Abstract
The invention provides a flowing phase-change energy storing type falling-film evaporating heat pump unit. The flowing phase-change energy storing type falling-film evaporating heat pump unit is that an inner water pipe inlet, a medium water pipe inlet and an outer water pipe inlet are all connected with a pump-out end of a water pump; an inner water pipe outlet, a medium water pipe outlet and an outer water pipe outlet are all connected with an inlet of a solar thermal collector; an outlet of the solar thermal collector is connected with a suction inlet of the water pump through a second pipeline; the outlet end of a phase-change micro-emulsion discharge pipe is connected with the suction end of a stainless steel magnetic pump; the inlets of a plurality of groups of phase-change micro-emulsion external surface enhanced pipe bundles are all connected with the pump-out end of the stainless steel magnetic pump, and the outlets of the plurality of groups of phase-change micro-emulsion external surface enhanced pipe bundles are all connected with a phase-change micro-emulsion feeding pipe of an energy storing tank; and an electric four-way reversing valve and a falling-film energy storing evaporating device are respectively connected with a compressor, an outdoor side fin type tubular air heat exchanger and a refrigerant/ water drying type heat exchanger. The flowing phase-change energy storing type falling-film evaporating heat pump unit is applied to a solar energy and air energy coupling heat pump system.
Description
technical field [0001] The invention relates to a heat pump unit used in an energy storage heat pump system, in particular to a falling film evaporation heat pump unit with flow phase change energy storage. Background technique [0002] At present, air source heat pumps have been widely used in various regions, but there is a problem of low heating efficiency in the northern cold climate region, and there is also the problem of frosting on the outdoor heat exchanger of the heat pump cycle in regions with high outdoor relative humidity. Therefore, the air source heat pump integrated system combined with technologies in other fields has become a new development direction. Most of the integrated systems are still in the conceived stage, failing to combine the strengths and weaknesses of different types of technologies rationally. In the existing energy-storage heat pumps, most of the energy-storage heat exchangers are casing-type structures, and their disadvantages are: 1) The ...
Claims
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