Ejector capable of automatically adjusting nozzle outlet position

Abstract

The invention discloses an ejector capable of automatically adjusting the nozzle outlet position. The ejector comprises a working fluid communicating pipe, a nozzle, a receiving chamber, a mixing chamber and a diffusing chamber which are sequentially connected along the axis; an ejection fluid communicating pipe is arranged under the receiving chamber and introduced into the receiving chamber; thefront end of the working fluid communicating pipe is provided with the nozzle, the working fluid communicating pipe transversely penetrates and stretch into the receiving chamber, and the working fluid communicating pipe is movably installed and can move front and back along the axis; and a connecting chamber is fixed to the portion, located on the outer side wall of the back side of the receiving chamber, of the working fluid communicating pipe, the connecting chamber is installed at the back end of the receiving chamber along the axis and wraps the back portion of the receiving chamber, andthe front end of the connecting chamber is in sliding contact with the outer side wall of the receiving chamber. According to the ejector capable of automatically adjusting the nozzle outlet position, the nozzle outlet position of the ejector can be automatically adjusted when the working fluid pressure of the ejector changes within a certain range, the performance of the ejector is improved, andthe problem that the ejecting performance is seriously reduced when the working fluid pressure changes a lot is avoided or reduced.

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

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