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Ejector with automatic adjustment of ejecting flow and refrigerating system comprising same

An automatic adjustment and injector technology, which is applied in refrigerators, refrigeration and liquefaction, lighting and heating equipment, etc., can solve the problems of complex structure and inconvenient adjustment of adjustable injectors, and achieve simple structure, convenient control and convenient manufacture Effect

Inactive Publication Date: 2012-07-11
TIANJIN UNIV OF COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current adjustable injector has a complex structure and is inconvenient to adjust

Method used

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  • Ejector with automatic adjustment of ejecting flow and refrigerating system comprising same
  • Ejector with automatic adjustment of ejecting flow and refrigerating system comprising same
  • Ejector with automatic adjustment of ejecting flow and refrigerating system comprising same

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] The schematic diagram of the injector that automatically adjusts the injection flow rate of the present invention is as figure 1 As shown, a receiving chamber 13, a mixing chamber 4, and a diffuser chamber 5 are arranged in the main body of the injector, and a nozzle 3 is arranged in the receiving chamber 13, and a device communicating with the receiving chamber is arranged on the main body of the injector. The injection fluid inlet connecting pipe 7, the side of the nozzle is connected with the main fluid inlet connecting pipe 2, the rear part of the nozzle is fixedly connected with the baffle plate 8, and an end cover 23 is installed at one end of the receiving chamber of the main body of the injector, A diaphragm 10 is installed between the end cover 23 and the baffle 8, and the diaphragm 10 and the baffle 8 are respectively welded ...

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Abstract

The invention discloses an ejector with automatic adjustment of ejecting flow and a refrigerating system comprising the same. The invention is characterized in that with the change of the refrigerating load of the refrigerating system, the flow of the ejecting fluid can be adjusted to offset the influence of the load change on the working performance of the ejector and further guarantee the operating performance of the refrigerating system in a wider range. The side surface of an ejector nozzle is connected with a main fluid inlet connecting pipe; the rear part of the nozzle is connected with a baffle; one end of a main body receiving chamber of the ejector is provided with an end cover; a diaphragm is arranged between the end cover and the baffle; the diaphragm and the baffle are respectively welded with the inner side of an ejector main body along the circumferential edge; a first pressure cavity is formed between the diaphragm and the end cover; a second pressure cavity is formed between the diaphragm and the baffle; the nozzle is internally provided with a valve needle and a push rod; the front end of the valve needle corresponds to the end surface of a nozzle outlet, and the rear end of the valve needle is fixedly connected with the push rod which is fixedly connected with the diaphragm; a spring is sheathed at the outer part of the push rod in the second pressure cavity; and the end cover is provided with a first connecting pipe.

Description

technical field [0001] The invention relates to an ejector for automatically adjusting ejection flow and a refrigeration system composed of the ejector. Background technique [0002] The current refrigeration system with ejector adopts the ejector with fixed structure designed under a given working state. Once the ejector is made, it cannot be changed. In this way, the ejector can only achieve the maximum efficiency under the designed state. However, in the actual operation process, when the refrigeration load of the refrigeration system changes, the absorption heat load of the evaporator changes, and the state of the injection fluid changes, causing the working parameters of the ejector to deviate from the design parameters, resulting in a decrease in the efficiency of the ejector. It can't even work, affecting the performance of the refrigeration system. In order to enable the ejector to operate efficiently under wider working conditions, the ejector should be adjusted to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B9/08
Inventor 宁静红刘圣春吕冰
Owner TIANJIN UNIV OF COMMERCE
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