Absorption refrigeration device and flow control method of heat collecting liquid

Abstract

The invention relates to an absorption refrigeration device and a process control method of a heat collecting liquid. The absorption refrigeration device includes an absorption refrigeration cycle of an absorption refrigeration device and a solar heat collector, which includes a shell and is placed in the shell The heat collecting part, the heat collecting part includes several heat collecting units; wherein, the heat collecting unit includes a compound parabolic concentrator and a capillary heat absorber straddled on the compound parabolic concentrator; The heat collecting liquid forms a flow path between the liquid inlet liquid pipe, the liquid outlet liquid collection pipe and at least a part of the capillary heat absorber, and a heat exchanger is arranged in the generator, and the heat exchanger The heater makes the flow path form a closed loop; and on the premise of physical significance, the number of the capillary heat absorbers connected to the flow path can be adjusted in an adjustable manner. The device of the present invention satisfies the cooling demand by adjusting the flow of heat collecting 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...

AI Technical Summary

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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