CN210637505U - Double containment flange evacuation structure - Google Patents
Double containment flange evacuation structure Download PDFInfo
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- CN210637505U CN210637505U CN201921423300.5U CN201921423300U CN210637505U CN 210637505 U CN210637505 U CN 210637505U CN 201921423300 U CN201921423300 U CN 201921423300U CN 210637505 U CN210637505 U CN 210637505U
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- convex ring
- sealing washer
- sealing
- air
- air pressure
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Abstract
The utility model relates to a sealing device field discloses a double containment flange evacuation structure, its characterized in that: the sealing device comprises a first sealing washer and a second sealing washer, wherein a first convex ring and a second convex ring are respectively arranged on the surfaces, close to each other, of the first sealing washer and the second sealing washer, the thicknesses of the first convex ring and the second convex ring are the same, the outer diameter of the second convex ring is smaller than the inner diameter of the first convex ring, when the second convex ring is attached to the first sealing washer and the first convex ring is attached to the second sealing washer, the first sealing washer and the second sealing washer are respectively installed on the two end surfaces, when the two end surfaces are close to each other, sealing between structures of the two surfaces is completed, air in the annular cavity can be discharged through a vacuumizing device, the air is prevented from entering the device, meanwhile, the air pressure in the annular cavity can be detected through an air pressure detection device, when the air pressure is abnormal, the sealing device stops working and immediately overhaul.
Description
Technical Field
The utility model relates to a sealing device field, more specifically says, in particular to double containment flange evacuation structure.
Background
The sealing effect is poor because most of the existing sealing layers are sealing gaskets arranged on the base or the movable cylinder.
How to solve the technical problems becomes a difficult problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a double containment flange evacuation structure to solve the current sealing layer and mostly for installing a seal ring on base or a movable cylinder, sealed not good problem of effect.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a double containment flange evacuation structure which characterized in that: the air pressure measuring device comprises a first sealing washer and a second sealing washer, wherein a first convex ring and a second convex ring are respectively arranged on the surfaces, close to each other, of the first sealing washer and the second sealing washer, the thickness of the first convex ring is the same as that of the second convex ring, the outer diameter of the second convex ring is smaller than the inner diameter of the first convex ring, when the second convex ring is attached to the first sealing washer and the first convex ring is attached to the second sealing washer, an annular cavity is formed by the first sealing washer, the second sealing washer, the first convex ring and the second convex ring, two through holes are formed in the first sealing washer, the second sealing washer or the first convex ring, an air pressure measuring device is arranged in one through hole, an air pipe is arranged in the other through hole, a vacuumizing device can pump out air in the annular cavity through the air pipe to respectively install the first sealing washer and the second sealing washer on the two end faces, when two terminal surfaces are close to each other, sealing between the structures at two surfaces is completed, air in the annular cavity can be discharged through the vacuumizing device, the air is prevented from entering the device, meanwhile, air pressure in the annular cavity can be detected through the air pressure detection device, and when the air pressure is abnormal, the device stops working and is immediately overhauled.
Further, the vacuum pumping device is an air pump, the air pump is connected with an external power supply, the air pump is an existing device, and the technical personnel in the field purchase the air pump from the outside.
Further, the barometer is connected with an external power supply, and the barometer is an existing device purchased from the outside by a person skilled in the art.
Further, all be equipped with on the outer wall of barometry device and trachea and be used for sealed filling layer, the filling layer is for the inflation glue or sealed glue, is equipped with the filling layer between barometry device and the through-hole, between trachea and the through-hole, avoids getting into external gas through the through-hole.
Compared with the prior art, the utility model has the advantages of:
install first seal ring and second seal ring respectively on two terminal surfaces, be close to each other when two terminal surfaces and accomplish the sealed between the structure at two face places, can be with the air escape in the annular chamber through evacuating device, avoid inside the air admission device, can detect the atmospheric pressure in the annular chamber through atmospheric pressure detection device simultaneously, when atmospheric pressure is unusual, stop work overhauls immediately.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a non-use configuration of an embodiment;
FIG. 2 is a schematic view of a first embodiment of the present invention in use;
FIG. 3 is a schematic structural view in use of the second embodiment;
FIG. 4 is a schematic structural view of the third embodiment in use.
Description of reference numerals: 1 a first sealing washer, 2 a second sealing washer, 3 a first convex ring, 4 a second convex ring, 5 through holes and 6 annular cavities.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
Referring to fig. 1, a double-sealing flange vacuum pumping structure includes a first sealing gasket 1 and a second sealing gasket 2, the first sealing gasket 1 and the second sealing gasket 2 are respectively installed on two end faces of a device to be sealed, a first convex ring 3 and a second convex ring 4 are respectively arranged on the surfaces of the first sealing gasket 1 and the second sealing gasket 2 close to each other, the first convex ring 3 and the second convex ring 4 can be rubber sealing gaskets, the thicknesses of the first convex ring 3 and the second convex ring 4 are the same, the outer diameter of the second convex ring 4 is smaller than the inner diameter of the first convex ring 3, the second convex ring 4 is attached to the first sealing gasket 1, when the first convex ring 3 is attached to the second sealing gasket 2, an annular cavity 6 is formed by the first sealing gasket 1, the second sealing gasket 2, the first convex ring 3 and the second convex ring 4, two through holes 5 are opened on the first sealing gasket 1, the second sealing gasket 2 or the first convex ring 3, please refer to fig. 2, fig. 3 and fig. 4, one of the through holes 5 is provided with an air pressure measuring device, the other through hole 5 is provided with an air pipe, the air pipe can be used for pumping out the air in the annular cavity 6 by the vacuum pumping device, the first sealing washer 1 and the second sealing washer 2 are respectively arranged on the two end faces, when the two end faces are close to each other, the sealing between the structures of the two faces is completed, the air in the annular cavity 6 can be discharged by the vacuum pumping device, the air is prevented from entering the device, meanwhile, the air pressure in the annular cavity 6 can be detected by the air pressure detecting device, when the air pressure is abnormal, the work is stopped, and the maintenance is immediately carried out.
In this embodiment, the vacuum pumping device is a suction pump, and the suction pump is connected with an external power supply, and the suction pump is an existing device, and is purchased from the outside by a person skilled in the art.
In this embodiment, the air pressure measuring device is a barometer, and the barometer is connected with an external power supply, and the barometer is a conventional device purchased from the outside by a person skilled in the art.
In this embodiment, all be equipped with on the outer wall of atmospheric pressure measuring device and trachea and be used for sealed filling layer, the filling layer is the inflation glue or sealed glue, is equipped with the filling layer between atmospheric pressure measuring device and the through-hole, between trachea and the through-hole, avoids getting into external gas through-hole 5.
This is the working principle of the double-sealing flange vacuum pumping structure, and the contents which are not described in detail in the specification belong to the prior art which is well known to those skilled in the art.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, the owner of the patent may make various modifications or changes within the scope of the appended claims, for example, the specific materials of the first and second convex rings 3 and 4 may be replaced by conventional ones, and the protection scope of the present invention should be within the scope of the claims.
Claims (4)
1. The utility model provides a double containment flange evacuation structure which characterized in that: the air pressure measuring device comprises a first sealing washer (1) and a second sealing washer (2), wherein a first convex ring (3) and a second convex ring (4) are respectively arranged on the surfaces, close to each other, of the first sealing washer (1) and the second sealing washer (2), the thicknesses of the first convex ring (3) and the second convex ring (4) are the same, the outer diameter of the second convex ring (4) is smaller than the inner diameter of the first convex ring (3), the second convex ring (4) is attached to the first sealing washer (1), and when the first convex ring (3) is attached to the second sealing washer (2), a ring cavity (6) is formed by the first sealing washer (1), the second sealing washer (2) and the second convex ring (4), two through holes (5) are formed in the first sealing washer (1), the second sealing washer (2) or the first convex ring (3), one air pressure measuring device is installed in the through holes (5), an air pipe is arranged in the other through hole (5), and the air in the annular cavity (6) can be pumped out by the vacuum pumping device through the air pipe.
2. The dual sealing flange evacuation structure of claim 1, wherein: the vacuum pumping device is an air pump, the air pump is connected with an external power supply, the vacuum pumping device is an existing device, and technicians in the field purchase the vacuum pumping device from the outside.
3. The dual sealing flange evacuation structure of claim 1, wherein: the barometer is connected with an external power supply, is an existing device, and is purchased from the outside by a person skilled in the art.
4. The dual sealing flange evacuation structure of claim 1, wherein: the outer walls of the air pressure measuring device and the air pipe are provided with filling layers for sealing, the filling layers are made of expansion glue or sealant, and the filling layers are arranged between the air pressure measuring device and the through hole and between the air pipe and the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921423300.5U CN210637505U (en) | 2019-08-30 | 2019-08-30 | Double containment flange evacuation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921423300.5U CN210637505U (en) | 2019-08-30 | 2019-08-30 | Double containment flange evacuation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210637505U true CN210637505U (en) | 2020-05-29 |
Family
ID=70796945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921423300.5U Active CN210637505U (en) | 2019-08-30 | 2019-08-30 | Double containment flange evacuation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210637505U (en) |
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2019
- 2019-08-30 CN CN201921423300.5U patent/CN210637505U/en active Active
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