An injector with automatically adjustable nozzle outlet position

Abstract

The invention discloses an injector whose outlet position of a nozzle can be automatically adjusted. The injector comprises a working fluid flow pipe, a nozzle, a receiving chamber, a mixing chamber and a diffusing chamber which are sequentially connected along the axis; The jet fluid flow pipe, the ejection fluid flow pipe leads into the receiving chamber; the front end of the working fluid flow pipe is a nozzle, the working fluid flow pipe crosses and extends into the receiving chamber, the working fluid flow pipe is movable and can move forward and backward along the axis; The working fluid flow pipe is located on the outer wall of the receiving chamber and is fixed with a connecting chamber. The connecting chamber is installed on the rear end of the receiving chamber along the axis and encloses the rear of the receiving chamber. The front end of the connecting chamber is in sliding contact with the outer wall of the receiving chamber; The invention can automatically adjust the outlet position of the nozzle of the injector when the pressure of the working fluid of the injector changes within a certain range, improves the performance of the injector, and avoids or reduces the problem of serious drop in injection performance when the pressure of the working fluid changes greatly.

Description

technical field [0001] The invention relates to an injector whose nozzle outlet position can be automatically adjusted. Background technique [0002] Ejector is a kind of fluid machinery that uses high-pressure fluid to entrain low-pressure fluid; this equipment increases the pressure of low-pressure fluid without directly consuming mechanical energy, and is an energy-saving equipment; its structure is simpler and more reliable than mechanical booster equipment, and its energy-saving effect is also great. In addition, it has the advantages of easy manufacture and convenient maintenance and management, so it has been widely used in the field of refrigeration at home and abroad. [0003] At present, there are many studies on the mechanism of the injector, among which some studies have shown that the structural parameters of the injector have an important influence on the performance of the injector; figure 1 As shown, it is an existing steam injector, which is mainly composed...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide an injector with an automatically adjustable nozzle outlet position. When the pressure of the working fluid changes, the injector can automatically adjust the distance between the nozzle outlet and the inlet of the mixing chamber, so that the injector can adapt to the new Working fluid pressure, thereby improving the performance of the injector, and solving the problem that the injection performance of the injector is seriously degraded when the working fluid pressure changes greatly

Images