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A vacuum-protected flange connection

A technology for vacuum protection and connectors, which is applied in the direction of flange connections, pipes/pipe joints/fittings, passing components, etc. It can solve problems such as production environment damage, corrosion of flange joints, and enterprise shutdown and production shutdown, so as to slow down the electrochemical process. Corrosion, the effect of high connection fastness

Active Publication Date: 2018-05-29
黄琴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the continuous production of modern industry, flanges are affected by medium corrosion, erosion, temperature, pressure, vibration and other factors. Moisture in the air causes electrochemical corrosion at the flange joints and destroys the tightness of the flange joints, which inevitably causes flange leakage
If the flange leakage problem cannot be dealt with in time, the leakage will expand rapidly under the scouring of the medium, resulting in the loss of materials, the destruction of the production environment, and the shutdown of the enterprise, resulting in huge economic losses.
Leakage of toxic, harmful, flammable and explosive media may cause serious accidents such as personnel poisoning, fire and explosion

Method used

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  • A vacuum-protected flange connection
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Embodiment Construction

[0020] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0021] Such as figure 1 and figure 2 As shown, a vacuum-protected flange connection in this embodiment includes an upper flange 1 , a lower flange 2 , a sealing ring 3 , a connecting block 4 and a protective device 5 .

[0022] The upper flange 1 is provided with annular No. 1 upper flange 11 and No. 2 upper flange 12; the No. 1 upper flange 11 is provided with six bolt through holes, and the No. 1 upper flange 11 is provided with a No. 1 external thread 13; the No. 2 upper flange 12 is located above the No. 1 upper flange 11;

[0023] The lower flange 2 is provided with annular No. 1 lower flange 21 and No. 2 lower flange 22; the No. 1 lower flange 21 is provided with six bolt through holes, and the No. 1 lower flange 21 is provided with a No...

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Abstract

The invention relates to the field of flanges, in particular to a vacuum protective flange connector. The vacuum protective flange connector comprises an upper flange, a lower flange, a sealing ring, a connection block and a protecting device, wherein the upper flange is provided with a first annular upper convex edge and a second annular upper convex edge; the lower flange is provided with a first annular lower convex edge and a second annular lower convex edge; the sealing ring is mounted between the upper flange and the lower flange; the protecting device comprises a protecting cover, annular elastic rubber bases located at the upper end and lower end of the protecting cover, and sealing pads; an air suction opening is formed in the side face of the protecting cover; and an air plug is installed in the air suction opening. The vacuum protective flange connector is high in connecting firmness and free from invasion of rain water, dust and the like; and a cavity in the protecting cover is nearly vacuum by pumping air in the protecting cover, so that the electrochemical corrosion to the vacuum protective flange connector is relieved.

Description

technical field [0001] The invention relates to the field of flanges, in particular to a vacuum-protected flange connector. Background technique [0002] Flange is otherwise known as flange flange or flange. Flanges are parts that are connected to each other between pipes and are used for connection between pipe ends; they are also useful for flanges on equipment inlets and outlets, And can be used as connection between two equipments, example reducer flanges. Flange connection or flange joint refers back to the detachable connection of flange, Gasket and bolt as a team of combined sealing structure. Pipe flange refers back to the flange used for piping in the pipeline installation, And used on the equipment refers to the inlet and outlet flange of the equipment. There are holes in the flange, and the bolts tightly connect the two flanges. The flanges are sealed with gaskets. Flanges are divided into threaded (screw connection) flanges, welding flanges and clip flanges. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L23/032
CPCF16L23/006F16L23/032
Inventor 袁林
Owner 黄琴
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