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Injector with adjustable distance between nozzle and mixing chamber inlet and adjustable nozzle critical sectional area

A technology for mixing chambers and injectors, applied in injection devices, liquid injection devices, etc., can solve the problems of reduced working fluid performance, throttling loss, and device complexity, achieving significant energy-saving effects, low consumption of working fluid, and The effect of high work efficiency

Inactive Publication Date: 2010-09-15
杜战奇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above adjustment method, closing the valve on the working fluid pipeline will cause throttling loss, and the working ability of the working fluid will be reduced.
The method of using multiple small injectors in parallel instead of one injector will complicate the device

Method used

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  • Injector with adjustable distance between nozzle and mixing chamber inlet and adjustable nozzle critical sectional area
  • Injector with adjustable distance between nozzle and mixing chamber inlet and adjustable nozzle critical sectional area
  • Injector with adjustable distance between nozzle and mixing chamber inlet and adjustable nozzle critical sectional area

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Embodiment Construction

[0022] Such as figure 1 As shown, the present invention includes a valve body 5 provided with a working fluid inlet 10 and an injector body 9 connected to the front end of the valve body 5 and provided with a mixing chamber 11 and an injection fluid inlet 12. A guide sleeve 6 is provided, the guide sleeve 6 is located on the same axis as the valve body 5 and communicates with the inner cavity of the valve body 5, the working fluid enters the guide sleeve 6 through the working fluid inlet 10 and the inner cavity of the valve body 5, and A valve stem 1 is arranged axially inside the valve body 5 and the guide sleeve 6, and a nut 2 is arranged at the rear end of the valve body 5. The valve stem 1 passes through the screw hole of the nut 2 and is connected with the nut 2 through threads. The front end of the sleeve 6 is provided with a nozzle 8 and a spool 7 opposite to the nozzle 8. The spool 7 is connected to the front end of the valve stem 1. The rear end of the nozzle 8 is fix...

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Abstract

The invention discloses an injector with an adjustable distance between a nozzle and a mixing chamber inlet and an adjustable nozzle critical sectional area. The injector comprises a valve body and an injector body which is connected with the front end of the valve body and is provided with a mixing chamber and a driving fluid inlet, wherein a guide sleeve is arranged in the injector body and is communicated with an inner cavity of the valve body; a valve rod is axially arranged in the valve body and the guide sleeve; the back end of the valve body is provided with a nut; the valve rod is in threaded connection with the nut; the front end of the guide sleeve is provided with the nozzle and a valve core; the valve core is connected with the front end of the valve rod; the back end of the nozzle is connected with a sleeve provided with inside threads; the valve core is provided with a rotating wheel of which the rim is provided with outside threads; the sleeve is movably arranged in a guide groove on an inner wall of the guide sleeve through a sliding key; and the rotating wheel is connected with the sleeve through the threads. The injector has the advantages of adjustable distance between the nozzle and the mixing chamber inlet, adjustable nozzle critical sectional area, high injection efficiency, good energy-saving effect and wide application range.

Description

technical field [0001] The invention relates to an injector, in particular to an injector with adjustable distance between the nozzle and the inlet of the mixing chamber and the critical cross-sectional area of ​​the nozzle. Background technique [0002] An injector working under fixed conditions will only exert its maximum efficiency when the working conditions meet the design requirements. When the working, injecting, and mixing fluid parameters deviate from the design parameters, the efficiency of the injector will decrease sharply if there is no artificial adjustment in time. In order to increase the efficiency of the injector, it must be adjusted. There are two main adjustment methods currently used: one is to adjust the valve on the working fluid pipeline; the other is to change the critical cross-sectional area of ​​the working nozzle, which can be adjusted by a tapered rod ( needle) to achieve. Using multiple small injectors in parallel to replace one injector is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B7/12
Inventor 杜战奇
Owner 杜战奇
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