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

A technology of automatic adjustment and condensation temperature, applied in refrigerators, machines using refrigerant evaporation, refrigeration components, etc. Effect

Inactive Publication Date: 2014-10-01
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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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 condensing temperature and jet type refrigerating machine
  • Ejector capable of automatically regulating area ratio along with condensing temperature and jet type refrigerating machine
  • Ejector capable of automatically regulating area ratio along with condensing temperature and jet type refrigerating machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] like figure 1 As shown, an injector that automatically adjusts the area ratio with the condensing 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 to the temperature sensing package 2, the injector cavity 1 is divided into two spaces respectively connected with the temperature sensing package 2 and the fluid outlet 1c, the diaphragm 3, the adjusting cone 4, and the spring 5;

[0037] 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 outlet of the diffusion chamber 1e is provided with a mediation chamber 104, and the fluid outlet 1c is arranged on the side wall of the mediation chamber 104; the diaphragm 3 Set in the mediation room 104, divide the mediation room 104 into two independent spaces, the active room 104a a...

Embodiment 2

[0043] This embodiment is a specific application carried out on the basis of Embodiment 1, a kind of ejector refrigerator using the ejector of Embodiment 1, such as figure 2 shown in figure 1 On the basis of the system shown, 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 is connected to the inlet of the condenser 6, and the outlet of the condenser 6 is connected to the inlet of the circulation pump 9 , the inlet of the throttle valve 7 is connected at the same time, the outlet of the circulation pump 9 is connected with the inlet of the generator 10, the outlet of the generator 10 is connected with the inlet 1a of the working fluid, the outlet of the throttle valve 7 is connected with the inlet of the evaporator 8, and the outlet of the evaporator 8 Connected with ejection fluid inlet 1b;

[0044] The temperature sensing package 2 is located on the pipeline connecting the outlet of the conde...

Embodiment 3

[0049] like image 3 As shown, this embodiment is an improvement on the basis of Example 2. The temperature sensing package 2 is located on the wall of the condenser 6. The heat exchange between the working fluids makes the pressure change in the temperature sensing bulb 2 more sensitive to the change of the condensation temperature.

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Abstract

The invention discloses an ejector capable of automatically regulating an area ratio along with condensing temperature and a jet type refrigerating machine. The ejector capable of automatically regulating the area ratio along with the condensing temperature comprises a steam chamber and a diffusion chamber, the steam outlet of the steam chamber is provided with a working fluid nozzle, and a regulating cone is arranged in the working fluid nozzle; the outlet of the diffusion chamber is provided with a regulating chamber; regulating membranes are arranged in the regulating chamber; the ejector capable of automatically regulating the area ratio along with the condensing temperature further comprises a cavity and a thermo-bulb communicated with a drive chamber, and the thermo-bulb is used for sensing the temperature of fluid at the fluid outlet after being condensed and converting the temperature into a pressure signal to output; the regulating pieces regulate the axial movement of the regulating cone in real time according to the pressure signal of the thermo-bulb so as to realize the regulation for the working fluid nozzle flow area. The ejector capable of automatically regulating the area ratio along with the condensing 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 caused by the membrane change along with the condensing temperature, the pressure at the fluid outlet, the thermo-bulb pressure 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 with the condensing 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 refrigera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/00F25B19/02F25B41/40
Inventor 陈光明陈少杰闫继位方凌云
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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