Two-phase flow injector replacing refrigerator throttling element

A throttling element and ejector technology, which is used in refrigerators, ejectors, refrigeration and liquefaction, etc., can solve the problems that refrigerants are prone to shock waves, reduce nozzle efficiency, reduce ejector efficiency, etc., and achieve significant social benefits and Economic benefit, efficiency improvement, effect of improving efficiency

Inactive Publication Date: 2006-05-24
YORK WUXI AIR CONDITIONING & REFRIGERATION CO LTD
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  • Abstract
  • Description
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Problems solved by technology

Since the mainstream fluid at the inlet of the injector is liquid refrigerant, a metastable flow phenomenon will appear during the expansion process in the nozzle, which will reduce the efficiency of the nozzle. This invention does not take measures to eliminate th...

Method used

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  • Two-phase flow injector replacing refrigerator throttling element

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Embodiment Construction

[0010] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0011] Such as figure 1 As shown, the present invention includes: stepper motor 1, sealing nut 2, sealing packing 3, regulating valve stem 4, regulating valve body 5, nozzle 6, injection fluid inlet joint 7, injector housing 8, suction chamber 9 , Mixing chamber 10, diffuser chamber 11, mixed fluid outlet joint 12, mainstream fluid inlet joint 13. One end of the regulating valve stem 4 is connected with the output shaft of the stepping motor 1, and the other end is made into a cone shape, and extends into the regulating valve body 5 after passing through the sealing nut 2 and the sealing packing 3, and the middle part of the regulating valve stem 4 is in contact with the regulating valve body. The contact part of the body 5 is threaded, the mainstream fluid inlet joint 13 is integrated with the regulating valve body 5, the inlet of the n...

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Abstract

Injector in two-phase flow includes step motor, adjustable valve body, nozzle, case of injector, adaptor of injection liquid, air intake cavity, mixing chamber and pressure expansion chamber etc. In nozzle, refrigerant agent is quickened up continuously so as to reduce pressure in the air intake cavity. Thus, gaseous refrigerant agent from evaporator is injected to the air intake cavity. Then, gaseous refrigerant agent and liquid in main flow from condenser are mixed in the mixing chamber. Pressure expansion is carried out in pressure expansion chamber, and mixed flow outflows from case of injector. Mixing liquid in main flow with injection liquid is carried out under approximate equi-pressure. The pressure expansion chamber is designed based on theory of equal flow of momentum rate so as to raise efficiency of injector. Features are: few moving parts, raised efficiency of system about 5úÑ-20úÑ.

Description

technical field [0001] The invention relates to an ejector, especially a two-phase flow ejector whose mainstream fluid at the inlet of the ejector is liquid refrigerant and whose cooling capacity can be adjusted, and which is used to replace the throttling element of a refrigerator, which belongs to refrigeration [0002] technology field. Background technique [0003] Most of the existing refrigerators are composed of four parts: compressor, condenser, expansion valve, and evaporator. After being compressed by the compressor, the gaseous refrigerant enters the condenser to condense into a high-pressure and high-temperature liquid, and then expands through the expansion valve. It becomes a low-temperature and low-pressure two-phase fluid, then enters the evaporator to evaporate, absorbs the heat of the fluid outside the evaporator to vaporize, and then enters the compressor to complete a cycle. During the refrigerant cycle, the refrigerant is in a liquid state at the outlet ...

Claims

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Application Information

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IPC IPC(8): F25B9/08B05B7/04
Inventor 刘敬辉陈江平陈芝久
Owner YORK WUXI AIR CONDITIONING & REFRIGERATION CO LTD
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