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Circular-seam ejector

A technology of ejector and annular slot, applied in the field of annular slot ejector, can solve the problems of low ejection efficiency, inconvenient installation and disassembly, large volume, etc., and achieve the effect of high ejection efficiency

Active Publication Date: 2017-08-15
河北恒德环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A vacuum environment is formed around the expanding high-speed column flow, which injects the peripheral gas in, enters the diffuser and discharges it after boosting the pressure. The ejection efficiency of this injector is low. Very large, very inconvenient to install and remove

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the examples, the purpose is only to better understand the contents of the present invention, therefore, the examples given do not limit the protection scope of the present invention.

[0023] see figure 1 1. The main body of the ejector, the main body of the ejector includes a front body 12 and a rear body 13, and an adjustment flange 8 is respectively arranged on the front body 12 and the rear body 13, and the two adjustment flanges 8 are connected by bolts 5 , and then the front body 12 and the rear body 13 are connected together to form the ejector main body, and the front end of the rear body 13 extends into the inner hole of the front body 12 and the front body 12 together constitutes the annular air chamber 2 and the ring Laval-shaped nozzle 4, the front end of the rear body 13 and the inner hole of the front body 12 are fitted with an annular sealing ring 3 for sealing, and the connection ...

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Abstract

The invention relates to a gas-gas ejector device and particularly relates to a circular-seam ejector which is high in ejection efficiency, small in size and convenient to install. The circular-seam ejector comprises an ejector main body, the ejector main body is internally provided with a suction chamber cavity, a pressure expander cavity, a ring-shaped laval nozzle and a ring-shaped gas chamber, the ring-shaped gas chamber communicates with the suction chamber cavity through the ring-shaped laval nozzle, the suction chamber cavity communicates with the pressure expander cavity, and the ejector main body is provided with an ejection gas feeding hole communicating with the ring-shaped gas chamber. An inlet of the laval nozzle is of a gradually-shrunk ring shape, an outlet of the laval nozzle is of a gradually-expanded circular ring shape, the high-speed air flow passing through the ring-shaped laval nozzle is of a circular ring shape, the middle portion of the circular-ring-shaped outlet forms a vacuum environment, the ejected gas is pumped in from the middle to be mixed with the ejection gas, and the mixed gas is discharged through the pressure expander cavity. The pumping capacity of the circular-seam ejector is quite high, efficiency is higher, and the pressure of the gas capable of being pumped can reach -98 KPa at the minimum; and meanwhile, the circular-seam ejector is smaller in size and convenient to install.

Description

technical field [0001] The invention relates to an air-gas ejector, in particular to an annular seam ejector with high ejection efficiency, small volume and easy installation. Background technique [0002] In the field of vacuum equipment, there is a type of gas ejector device, which can not only evacuate the container, but also be used as a suction pump to transport gas. Generally, the gas ejector consists of two parts: Laval nozzle and diffuser, the Laval nozzle accelerates the ejected gas above the speed of sound, so that a vacuum environment is formed around the Laval nozzle outlet, and the ejected gas around the Laval nozzle outlet is sucked, and the diffuser The function is to pressurize the ejected and ejected mixed gas and discharge it out of the ejector, so as to realize the function of sucking the ejected gas. The Laval nozzle commonly used in the current gas ejector has a tapered inlet. The bell mouth, the throat is a short cylindrical shape, and the outlet is a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04F5/16F04F5/46F04F5/44
CPCF04F5/16F04F5/46F04F5/461
Inventor 吕建明孙冰冰高强樊鹏吴英杰
Owner 河北恒德环保科技有限公司
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