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Annular ejector

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

Active Publication Date: 2021-04-27
河北恒德环保科技有限公司
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  • Summary
  • 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

[0015] 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.

[0016] see figure 1 , figure 2 , image 3 , the main body of the ejector, the main body of the ejector includes a front body 12 and a rear body 13, an adjusting flange 8 is respectively arranged on the front body 12 and the rear body 13, and the two adjusting 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, a...

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Abstract

The invention relates to an air-gas ejector, in particular to an annular seam ejector with high ejection efficiency, small volume and easy installation. Including the main body of the ejector, the interior of the main body of the ejector is respectively equipped with a suction chamber cavity, a diffuser cavity, an annular Laval nozzle, and an annular air chamber. The annular air chamber is connected to the suction chamber through the annular Laval nozzle. The body is connected, the cavity of the suction chamber is connected with the cavity of the diffuser, and the main body of the ejector is provided with an ejector gas inlet hole connected with the annular air chamber. The inlet of the Laval nozzle of the present invention is a tapered ring, and the outlet is a gradually expanding ring. The high-speed airflow passing through the ring-shaped Laval nozzle is ring-shaped, and a vacuum environment is formed in the middle part of the ring-shaped outlet. The gas is sucked in from the middle and mixed with the ejected gas, and then the mixed gas is discharged through the diffuser cavity. This annular slot ejector has a strong suction ability and higher efficiency, and the pressure of the pumped gas can be as low as possible. Up to ‑98KPa, and smaller in size for easy installation.

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 Patents(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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