Solar multi-collection heat utilization system

Abstract

The invention relates to the field of heat transfer systems, in particular to a solar multi-collection heat utilization system. A main throttling element is arranged between an outlet of a condenser and an inlet of a main evaporator. An auxiliary throttling element and an auxiliary evaporator are connected in parallel with the two ends of the main throttling element, and are connected in series. According to the system, the auxiliary evaporator is additionally arranged to be connected in series with the main evaporator, and a heat transfer medium fed into the main evaporator is in a gas-liquid mixed state, and enters the main evaporator in a spraying manner, so that the heat absorption contact area of the heat transfer medium is enlarged, and the heat absorption efficiency is improved; different throttling manners and throttling points are adopted for different characteristics of the evaporator of each part, so that each evaporator is ensured to work efficiently, and the overall energy efficiency ratio of the system is favorably increased.

Description

technical field [0001] The invention relates to the field of heat transfer systems, in particular to a solar energy heteropolymer heat utilization system. Background technique [0002] In the existing solar heteropolymeric heat utilization system, the diameter of the transmission pipe is fixed during use, and the flow rate of the heat transfer medium inside it is also basically stable; however, the temperature of the water in the condenser is constant. In the course of the change, its demand for the heat transfer of the heat transfer medium is also constantly changing. However, the existing solar heteropolymeric heat utilization system cannot make corresponding changes when it is working. All the heat transfer medium continues to transfer heat to the condenser after being pressurized and heated by the compressor, resulting in waste, increased energy consumption and loss. [0003] The Chinese patent with the application number CN201410365739.2 discloses a solar heteropolyme...

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Problems solved by technology

However, when the ambient temperature is low, the throttling control device reduces the amount of the heat transfer medium, resulting in a low pressure of the heat transfer medium gas at the inlet of the compressor, which increases the workload of the compressor; and, when the temperature difference of the external environment When the intensity of solar radiation is very large or the intensity of solar radiation varies greatly, the adjustment ability of the system is also very limited.

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