Injection type refrigeration cycle system and utilization method thereof

Abstract

The invention relates to an injection type refrigeration cycle system and a utilization method thereof. The injection type refrigeration cycle system comprises a generator, an injector, a condenser, a throttle valve, an evaporator, a circulating pump, a liquid storage container, a first valve and a second valve, wherein the generator, the injector, the condenser, the circulating pump, the liquid storage container and the first valve are sequentially connected end to end to form a first circulation loop; the injector, the condenser, the throttle valve and the evaporator are sequentially connected end to end to form a second circulation loop; the generator, the second valve, the liquid storage container and the first valve are sequentially connected end to end to form a third circulation loop; and the position of the liquid storage container in the vertical direction is higher than the position of the generator in the vertical direction. According to the injection type refrigeration cycle system, the outlet pressure of the circulating pump is far lower than the outlet pressure of a circulating pump in a traditional injection type refrigeration cycle system, the efficiency of the circulating pump is higher, the size of the integral refrigeration cycle system is effectively decreased, and the practicability is higher.

Description

technical field [0001] The present invention relates to a refrigerating cycle system and its usage method, in particular to a spray type refrigerating cycle system and its usage method. Background technique [0002] Ejection refrigeration is refrigerated by liquid vaporization, which is exactly the same as vapor compression and absorption refrigeration. The refrigeration system has the characteristics of using thermal energy as driving energy, simple structure, and convenient operation and maintenance. Ejection refrigeration system is generally composed of generator, condenser, evaporator, ejector, circulation pump and throttle valve, etc., which has high practical value; steam injection refrigeration system can use water, freon, etc. as working medium. [0003] In the jet refrigeration cycle, the pressure difference between the working medium in the condenser and the generator is large, and the pressure of the working medium in the generator is relatively high. Traditiona...

AI Technical Summary

Problems solved by technology

Traditional ejector refrigeration systems generally use circulating pumps to pressurize the working medium. When the ratio of the inlet and outlet pressures of the circulating pump is large, its efficiency will drop significantly, resulting in a decrease in the energy efficiency ratio of the entire ejector refrigeration system.

In order to overcome this problem, a pumpless jet refrigeration cycle has appeared in the prior art, relying on gravity or capillary force to increase the pressure of the working medium, so no circulation pump is needed; however, when using a pumpless jet refrigeration cycle, it needs Longer pipelines provide sufficient gravity or capillary force, which increases the overall size of the refrigeration cycle system; at the same time, since there is no circulation pump, the operation of the refrigeration cycle system is easily affected by various factors and becomes unstable

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