Steam ejector

Abstract

The invention provides a steam ejector. The steam ejector is composed of three parts of a diffuser pipe, an ejecting nozzle and a suction chamber; the diffuser pipe structurally comprises an exit section expanded gradually, a larynx part with uniform section and an entrance section reduced gradually; the ejecting nozzle structurally comprises an ejecting nozzle outlet, an ejecting nozzle larynx part, an ejecting nozzle steam inlet pipe, an ejecting nozzle spindle, a sleeve, a driving steam inlet, an end thread, a hand wheel and a steam inlet pipe thread; the suction chamber structurally comprises a suction chamber shell and a steam inlet; the outlet of the suction chamber shell is connected with the entrance section of the diffuser pipe, the other end of the entrance section of the diffuser pipe is connected with the larynx part of the diffuser pipe, and the other end of the larynx part is connected with the exit section of the diffuser pipe; one end of the ejecting nozzle spindle is the hand wheel, the other end of the ejecting nozzle spindle is in a circular cone shape, the top end of the circular cone shape points to the ejecting nozzle larynx part located on the end part of thesteam inlet pipe, two sections of threads are located on the ejecting nozzle spindle, the thread close to the hand wheel is matched with the end thread on the sleeve, the thread in the middle is matched with the steam inlet thread, and the steam inlet is slidably attached to the inner wall of the sleeve.

Description

Technical field [0001] The invention relates to thermal engineering technology, in particular to a steam ejector. Background technique [0002] A steam ejector is a device that uses high-pressure steam to suck low-pressure steam to increase the pressure of the low-pressure steam being ejected. [0003] The steam ejector has simple and reliable structure, low operating cost and is widely used, such as vacuum system, refrigeration cycle, chemical industry, rocket and jet aircraft propulsion system, and even the core cooling system of nuclear power plant. [0004] Steam ejectors are widely used in industries that use steam as power, such as textiles, papermaking, petroleum, thermal power, etc., to promote steam circulation and increase low-pressure steam pressure. [0005] Because enterprises in these industries produce low-pressure steam during the production process, there may be multiple levels of steam in a production plant or workshop. Steam ejectors can use the available energy of ...

AI Technical Summary

Problems solved by technology

[0014] This adjustment relationship usually cannot meet the actual needs, that is, the steam injector often cannot work in the best state, resulting in relatively low energy efficiency of the steam injector

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