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Ejector capable of automatically regulating area ratio along with generating temperature and jet type refrigerating machine

An automatic adjustment and ejector technology, which is applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as heavy workload, complicated operation and maintenance, and achieve the effect of improving efficiency and increasing ejection coefficient.

Inactive Publication Date: 2014-10-01
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned injectors need to be adjusted manually, the workload is large, and the operation and maintenance are relatively complicated.

Method used

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  • Ejector capable of automatically regulating area ratio along with generating temperature and jet type refrigerating machine
  • Ejector capable of automatically regulating area ratio along with generating temperature and jet type refrigerating machine
  • Ejector capable of automatically regulating area ratio along with generating temperature and jet type refrigerating machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, an injector that automatically adjusts the area ratio with the generated temperature includes an injector cavity 1 including a working fluid inlet 1a, an injection fluid inlet 1b, a fluid outlet 1c, a working fluid nozzle 1d, and a diffuser chamber 1e, and The injector cavity 1 is connected with the temperature sensing package 2, the injector cavity 1 is divided into two spaces respectively connected with the temperature sensing package 2 and the working fluid inlet 1a, the diaphragm 3, the adjusting cone 4, and the spring 5;

[0035] The injection cavity 1 is divided into a steam chamber 101, an injection chamber 102, a mixing chamber 103 and a diffusion chamber 1e; the diaphragm 3 is arranged in the steam chamber 101, and the steam chamber 101 is divided into two parts: the active chamber 101a and the driven chamber 101b. Diaphragm 3 is an elastic sheet, metal sheet, plastic sheet, etc. can be used, and its surroundings are sealed and fixed ...

Embodiment 2

[0042] This embodiment is a specific application carried out on the basis of Example 1: a jet refrigerator using the ejector of Example 1, such as figure 2 shown in figure 1 On the basis of the shown system, it also includes a condenser 6, a throttle valve 7, an evaporator 8, a circulation pump 9, and a generator 10; the fluid outlet 1c of the ejector is connected with the inlet of the condenser 6, and the outlet of the condenser 6 is connected with the circulation The inlet of the pump 9 and the inlet of the throttle valve 7 are simultaneously connected, the outlet of the circulating pump 9 is connected with the inlet of the generator 10, the outlet of the generator 10 is connected with the working fluid inlet 1a of the injector, and the outlet of the throttle valve 7 is connected with the inlet of the evaporator 8 Through, the outlet of the evaporator 8 is connected with the injection fluid inlet 1b of the injector;

[0043] The temperature sensing bulb 2 is located on the...

Embodiment 3

[0048] Such as image 3 As shown, this embodiment is an improvement carried out on the basis of Example 2. The temperature-sensing package 2 is located on the wall of the generator 10. The heat exchange between the working fluids makes the pressure change in the temperature sensing bulb 2 more sensitive to the temperature change.

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Abstract

The invention discloses an ejector capable of automatically regulating an area ratio along with generating temperature and a jet type refrigerating machine with the same. The ejector capable of automatically regulating the area ratio along with the generating temperature comprises an ejector cavity and a thermometer bulb communicated with a drive chamber, wherein the ejector cavity comprises a steam chamber with a working fluid nozzle, and a regulating cone coaxial with the working fluid nozzle is arranged therein; a regulating piece for dividing the steam chamber into the drive chamber and a driven chamber independent from each other is arranged therein; the regulating piece regulates the axial movement of the regulating cone in real time according to pressure signals of the thermometer bulb so as to regulate the fluid nozzle flow area. The ejector capable of automatically regulating the area ratio along with the generating temperature breaks through the restraints of traditional ideas, the working fluid nozzle flow area is changed through the position change of the regulating cone in the axial direction of the working fluid nozzle due to the deformation or move caused by the regulating piece change along the generating temperature, the pressure at a working fluid inlet, the pressure of the thermometer bulb and a spring, and then the ejector area ratio is changed, and the ejector can work under the best size.

Description

technical field [0001] The invention belongs to the technical field of refrigeration, and in particular relates to an ejector and an ejector refrigerator which can automatically adjust the area ratio according to the generated temperature. Background technique [0002] Ejection refrigeration technology is a heat-driven refrigeration technology. Compared with mechanical compression refrigeration technology, its main advantage is that it only consumes little mechanical energy and can directly use heat energy as the driving energy. It has the advantages of simple structure, small size and low cost. Low cost, reliable operation, long service life and other advantages. Jet refrigeration is a refrigeration method driven by low-grade energy, which can effectively utilize renewable energy such as solar energy and geothermal energy, as well as industrial waste heat and waste heat; the refrigerant used in jet refrigeration is mainly water, hydrocarbons or hydrofluorine Hydrocarbon re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/00F25B49/00F25B41/40
Inventor 陈光明陈少杰方凌云闫继位
Owner ZHEJIANG UNIV
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