Steam jetting refrigerating circulation system

A circulation system and injection technology, which is applied in the field of vapor injection refrigeration cycle system, can solve the problems of difficult adjustment of two-cycle matching operation and complex composite refrigeration system, and achieve the effect of simple structure, improved coefficient of performance, and increased initial investment

Inactive Publication Date: 2008-11-19
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Obviously, this composite refrigeration system is complicated, and it is difficult to adjust the matching operation of the two cycles.

Method used

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  • Steam jetting refrigerating circulation system
  • Steam jetting refrigerating circulation system

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Embodiment Construction

[0013] Such as figure 1 As shown, the refrigeration cycle system of the embodiment of the present invention includes a generator, an evaporator, a condenser, a circulating pump, a throttle valve, a main ejector, and an auxiliary ejector; the outlet end of the generator is connected with the high pressure inlet of the main ejector; The outlet of the main ejector is connected to the low pressure inlet of the auxiliary ejector; one diffuser outlet of the auxiliary ejector is connected to the generator, and the other diffuser outlet is connected to the condenser; the condenser outlet is divided into two paths, one connected to the circulation Pump, the other way is connected to the evaporator through a throttle valve; the outlet of the circulating pump is connected with the high-pressure inlet of the auxiliary ejector; the outlet of the evaporator is connected with the low-pressure inlet of the main ejector; the above are completely connected to form a refrigeration cycle system.

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Abstract

A steam jet refrigeration cycle system comprises a producer, an evaporator, a condenser, a circulation pump, a throttle valve and main and secondary injectors. The producer is used for producing the high-pressure refrigerant working steam. The main injector is used for jetting the low-pressure refrigerant steam coming from the evaporator and the secondary injector is used for jetting the low-pressure refrigerant steam coming from the main injector. The circulating pump outputs the high-pressure refrigerant liquid. The refrigerant liquid coming from one outlet of a diffuser returns to the producer and the refrigerant gas-liquid mixture coming from the other outlet enters to the condenser to condense. The produced refrigerant liquid is divided into two ways, one way is sent to the secondary injector by the circulating pump and the other enters to the evaporator through the throttle valve. The refrigeration is realized by evaporative heat-absorbing of the refrigerant in the evaporator.

Description

Technical field [0001] The invention belongs to the technical field of refrigeration, and relates to a steam jet refrigeration thermodynamic cycle and its system, in particular to a steam jet refrigeration cycle system with an auxiliary ejector (liquid-gas type) for supercharging and heat recovery. The system can be applied to jet refrigeration devices driven by low-grade thermal energy such as solar energy, low-temperature waste heat and waste heat. Background technique [0002] Vapor jet refrigeration is a refrigeration technology driven by heat energy. Compared with absorption and adsorption refrigeration driven by heat energy, it has a simple system structure, no moving parts (except circulating pumps), low investment and operating costs, and refrigerant It has unique advantages such as better selectivity. Since the mid-1950s, people have been committed to the research and application of steam jet refrigeration systems driven by low-grade heat energy. In the 21st century, imp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B9/08
Inventor 鱼剑琳厉彦忠张周卫蒲亮
Owner XI AN JIAOTONG UNIV
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