CN205323664U

CN205323664U - Ejector with plug nozzle

Info

Publication number: CN205323664U
Application number: CN201521031103.0U
Authority: CN
Inventors: 贺鹏程; 刘卫; 胡亮
Original assignee: AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
Current assignee: Jincheng Nanjing Electromechanical Hydraulic Pressure Engineering Research Center Aviation Industry Corp of China; AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
Priority date: 2015-12-11
Filing date: 2015-12-11
Publication date: 2016-06-22
Anticipated expiration: 2025-12-11

Abstract

The utility model relates to an ejector with plug nozzle, import (4), mixing chamber (5), fluid (6), spray tube (7) and mixing chamber export (8) including the mixing chamber, wherein spray tube (7) comprise one or more plug nozzle (9), and the entry of ejector, makes fluid (6) externally pass through mixing chamber import (4) and flows in mixing chamber (5) through inside spray tube (7) that set up of ejector for mixing chamber import (4) to spray to mixing chamber export (8), export (8) outflow ejector through the mixing chamber. The utility model discloses an ejector will be filled in characteristics such as the formula fully expands and be used for the ejector, can improve and draw the structural adaptability and the intensive mixing nature of penetrating the design to a high performance ejector has been formed.

Description

A kind of injector with plug nozzle

Technical field

This utility model belongs to energy transmission system field, is specifically related to a kind of injector with plug nozzle。

Background technology

Design from the Flugel by Germany of first injector, injector has developed a century, various ejection structures are invented, various injection mechanism and theory are studied, injection kind has subsonic speed injection, supersonic speed injection, gas-liquid injection, gas-solid injection etc., and various injection methods are developed to improve injection performance, and wherein Laval nozzle and shrink nozzle are main injector jet pipe forms, the ejector structure of this form is simple, but injection limited capacity。

There is also some other injector improved form in prior art, for instance lobe type jet pipe, shape of cracking jet pipe, become venturi mixing chamber and jet pipe etc., the ejector structure of these forms is complex, and operation easier is bigger。Compact to design and efficient injection equipment is the further demand of national defence, development in science and technology。

Utility model content

Utility model purpose: propose a kind of injector with plug nozzle, by increasing the jet pipe being made up of one or more plug nozzles, outer nozzle in structure, improves the Combination of injector, pressure ratio adaptability。

Consider the problems referred to above of prior art, an aspect disclosed in this utility model, this utility model by the following technical solutions:

A kind of injector with plug nozzle, including mixing-chamber inlet 4, mixing chamber 5, fluid 6, jet pipe 7 and mixing chamber outlet 8；

Wherein, jet pipe 7 is made up of one or more plug nozzles 9, and each plug nozzle 9 is made up of joint 1 and plug cone 2, and plug cone 2 is cone structure, and plug cone 2, through the endoporus of joint 1, leaves space 3 between plug cone 2 and the endoporus of joint 1, for the flowing of carry fluid；

The entrance of injector is mixing-chamber inlet 4, jet pipe 7 is set inside injector, jet pipe 7 plug cone 2 tips are towards mixing chamber outlet 8) make fluid 6 flow into mixing chamber 5 from outside by mixing-chamber inlet 4 by jet pipe 7, and spray to mixing chamber outlet 8, flow out injector by mixing chamber outlet 8。

It is characterized in that, the version of jet pipe 7 is the toroidal nozzle of multiple circular plug nozzle 9 composition。

Beneficial effect: the characteristics such as plug fully expansion are used for injection equipment by this utility model, it is possible to improve the structure adaptability of injection design and being sufficiently mixed property, thus defining a kind of high-performance injection equipment。

Accompanying drawing explanation

Fig. 1, the axial symmetry sectional view of single plug nozzle。

Fig. 2 (a), jet pipe axonometric chart one。

Fig. 2 (b), jet pipe axonometric chart two。

Fig. 2 (c), jet pipe front view。

Fig. 3, ejector structure figure。

Detailed description of the invention

Below in conjunction with embodiment, this utility model is described in further detail, but embodiment of the present utility model is not limited to this。

Such as Fig. 3, a kind of injector with plug nozzle of the present utility model, including mixing-chamber inlet 4, mixing chamber 5, fluid 6, jet pipe 7 and mixing chamber outlet 8。

Referring to accompanying drawing 1-2, jet pipe 7 is made up of 6 plug nozzles 9, and each plug nozzle 9 is made up of joint 1 and plug cone 2, and plug cone 2 is cone structure, and plug cone 2, through the endoporus of joint 1, leaves space 3 between plug cone 2 and the endoporus of joint 1, for the flowing of carry fluid；

Such as Fig. 3, the entrance of injector is mixing-chamber inlet 4, arranges jet pipe 7 inside injector, jet pipe 7 plug cone 2 tips are towards mixing chamber outlet 8, make fluid 6 flow into mixing chamber 5 from outside by mixing-chamber inlet 4 by jet pipe 7, and spray to mixing chamber outlet 8, flow out injector by mixing chamber outlet 8。

Claims

1. there is an injector for plug nozzle, including mixing-chamber inlet (4), mixing chamber (5), fluid (6), jet pipe (7) and mixing chamber outlet (8)；

Wherein, jet pipe (7) is made up of one or more plug nozzles (9), each plug nozzle (9) is made up of joint (1) and plug cone (2), plug cone (2) is cone structure, the endoporus of plug cone (2) traverse joint (1), space (3) is left, for the flowing of carry fluid between plug cone (2) and the endoporus of joint (1)；

The entrance of injector is mixing-chamber inlet (4), jet pipe (7) is set inside injector, jet pipe (7) plug cone (2) is most advanced and sophisticated towards mixing chamber outlet (8), fluid (6) is made to flow into mixing chamber (5) from outside by mixing-chamber inlet (4) by jet pipe (7), and spray to mixing chamber outlet (8), flow out injector by mixing chamber outlet (8)。

2. a kind of injector with plug nozzle as claimed in claim 1, it is characterised in that the version of jet pipe (7) is the toroidal nozzle that multiple circular plug nozzle (9) forms。