Absorption refrigeration device and flow control method of heat collecting liquid
An absorption refrigeration and heat collection technology, which is applied in the field of solar radiation heat energy utilization, can solve the problems of large fluctuations in the heat collection temperature and heat collection amount of the heat collection liquid, and cannot be adjusted, so as to improve the heat collection efficiency, improve the adaptability, and improve the Effects of stability and efficiency
Active Publication Date: 2018-10-30
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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Problems solved by technology
However, at present, the heat-collecting liquid used to collect heat in solar collectors is mainly in the form of natural convection or pump flow. The heat-collecting level of the heat-collecting liquid is greatly affected by solar radiation, so the heat-collecting temperature and heat-collecting amount of the heat-collecting liquid fluctuate. Larger, unable to dynamically adjust according to the actual cooling level demand of the absorption refrigeration device
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Embodiment 1
[0047] figure 1 A schematic diagram showing the structure of an absorption refrigeration device according to one embodiment of the present invention. The heat energy absorbed by the heat collecting liquid in the heat collector is mainly used for refrigeration. And by adjusting the heat collection level of the heat collector, different cooling demands can be met.
[0048] Such as figure 1 As shown, taking the heat-collecting liquid as the liquid medium as an example, the absorption refrigeration device mainly includes: 1) absorption refrigeration cycle, its structure mainly includes a generator 13, a condenser 14, an evaporator 16, and an absorber that are sequentially connected to form a closed loop. 17 and regenerator 19. Wherein the inside of the generator 13 is provided with a heat exchanger 21 , the water outlet end of the regenerator 19 can be connected with a shower, and the shower extends into the generator 13 and is placed on the top of the heat exchanger 21 . Th...
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The invention relates to an absorption cooling device and a heat collection liquid flow control method. The absorption cooling device comprises an absorption cooling cycle and a solar heat collector; the heat collector comprises a shell and a heat collection portion arranged in the shell; the heat collection portion comprises a liquid inlet and dividing pipe, a liquid outlet and collecting pipe and a pulse heat pipe heat collection unit arranged between the liquid inlet and dividing pipe and the liquid outlet and collecting pipe, and the pulse heat pipe heat collection unit comprises a composite parabolic concentrator, a pulse heat pipe heat absorber and a casing pipe heat exchanger; the pulse heat pipe heat absorber is formed by a plurality of sets of evaporation segments and condensation segments at intervals, the evaporation segments are arranged on the composite parabolic concentrator in a striding-over manner, and a flowing path is formed by heat collection fluid among the liquid inlet and dividing pipe, the liquid outlet and collecting pipe and at least one portion of the casing pipe heat exchanger. According to the device, the cooling requirement is met by adjusting the flow of heat collection liquid.
Description
technical field [0001] The invention relates to the field of utilization of solar radiation heat energy, in particular to an absorption refrigeration device and a process control method for heat collecting liquid. Background technique [0002] At present, the heat collecting liquid in the solar heat collector flows by natural convection or pump. The heat collector temperature and flow are passively adjusted, and it is impossible to dynamically adjust the operating state (heat collector temperature and flow) according to actual needs to adapt to changes in weather and usage requirements; and solar collectors usually use flat-plate heat-absorbing surfaces to absorb solar energy. Moreover, the temperature of the heat-absorbing surface is generally higher than that of the heat-absorbing tube, forming a high-temperature radiation surface and a heat leakage surface, which affect the heat collection efficiency. [0003] At present, the improvement of solar heat collectors is mainl...
Claims
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IPC IPC(8): F25B15/02F25B27/00F25B49/04F24S10/95F24S23/71F24S50/00
CPCF25B15/02F25B27/007F25B49/043Y02A30/27Y02B30/62
Inventor 徐荣吉张群力王瑞祥许淑惠解国珍王刚
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE