CN111122098A - Sealing device and sealing method for negative pressure bin test pipeline wall penetration - Google Patents
Sealing device and sealing method for negative pressure bin test pipeline wall penetration Download PDFInfo
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- CN111122098A CN111122098A CN201911283657.2A CN201911283657A CN111122098A CN 111122098 A CN111122098 A CN 111122098A CN 201911283657 A CN201911283657 A CN 201911283657A CN 111122098 A CN111122098 A CN 111122098A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
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Abstract
The invention belongs to the technical field of tests, and relates to a method and a device for sealing a cable and a pipeline of a box body in a negative pressure environment test through a wall. The sealing device comprises a sealing plate 1, a sealing gasket 2, a plug 6 and a bolt 5. The device can conveniently and effectively lead the tested piece to lead out the cable and the pipeline to pass through the wall plate of the box body of the negative pressure cabin, the negative pressure cabin is airtight, the negative pressure environment of a test area is not influenced, and the stability and the reliability of the test are ensured.
Description
Technical Field
The invention belongs to the technical field of tests, and relates to a sealing device and a sealing method for a negative pressure bin test pipeline wall penetration.
Background
Many test devices include negative pressure environments, such as ice wind tunnels, height test chambers, overhead tables, and the like. During the test of the devices, part of test pieces need to be electrified and ventilated, and test cables and ventilation pipelines need to penetrate through the wall plate of the test box body. Due to the fact that the cable and the pipeline are different in overall dimension and number and different in negative pressure environment, the problem of sealing when the cable and the pipeline penetrate through the wall can be solved without a proper device. In addition, the existing sealing device only adopts the opening of the sealing gasket, and the sealing gasket is tightly pressed between the wall plate and the pipeline, so that the sealing effect is poor.
Disclosure of Invention
The purpose of the invention is: the sealing device and the sealing method for the through-wall of the test pipeline of the negative pressure bin can conveniently and effectively ensure that the negative pressure bin is airtight after a cable and a pipeline led out by a test piece penetrate through a wall plate of a box body of the negative pressure bin, the negative pressure environment of a test area is not influenced, and the test is stable and reliable.
The technical scheme of the invention is as follows: on one hand, the sealing device for the wall penetration of the negative pressure chamber test pipeline is provided, and comprises a sealing plate 1, a sealing gasket 2, a plug 6 and a bolt 5;
the pipeline 4 penetrates through the box body wall plate 3 of the negative pressure cabin and is bent and turned at the outer side of the box body wall plate 3; the sealing plate 1 and the sealing gasket 2 are positioned on the outer side of the negative pressure bin;
the sealing gasket 2 is provided with a sealing groove, and the bent pipeline 4 is positioned in the sealing groove; the sealing plate 1 is matched with the box body wall plate 3 to clamp and press the sealing gasket 2; the sealing plate 1 and the sealing gasket 2 are fixedly connected with the box body wall plate 3 through bolts 5;
the pipeline 4 sequentially penetrates through the sealing groove of the sealing gasket 2 and the plug 6, and a part of the plug 6 is arranged in the sealing groove to seal the sealing groove; and the sealing plate 1 is matched with the box body wall plate 3 to clamp and press the plug 6.
Furthermore, a sealing groove is arranged in the middle of the sealing gasket 2, and one end of the sealing groove extends to the end part of the sealing gasket 2; the sealing gasket 2 is provided with a sealing groove, and the pipeline 4 is wound with a sealing body in the circumferential direction and then is arranged in the sealing groove; the sealing groove and the sealing body cooperate to increase the sealing area of the pipeline 4.
Further, the bolt 5 is provided with an adjusting nut.
Further, the sealing gasket 2 is a sticking sponge or a rubber gasket.
Further, the opening of the plug 6 is in sealing engagement with the pipeline 4.
Further, the plug 6 is a tapered plug.
In another aspect, there is provided a sealing method for a negative pressure chamber test pipeline through-wall, using the sealing device as described above, the sealing method comprising:
the pipeline 4 penetrates through the box body wall plate 3 of the negative pressure cabin and is bent and turned at the outer side of the box body wall plate 3;
the sealing gasket 2 is provided with a sealing groove, the bent pipeline 4 passes through the plug 6, and the pipeline 4 is wound around the sealing body and then is arranged in the sealing groove; one part of the plug 6 is arranged in the sealing groove;
the sealing plate 1 is matched with the box body wall plate 3 to clamp and tightly press the sealing gasket 2 and the plug 6;
and the seal plate 1 and the seal gasket 2 are fixedly connected with the box body wall plate 3 by adjusting nuts of the adjusting bolts 5.
Further, the screw of the adjusting bolt 5 passes through the sealing plate 1 and the gasket 2 and is screwed with the box wall plate 3.
The invention has the advantages that:
according to the sealing method, the pipeline 4 penetrates through the box body wall plate 3 of the negative pressure bin, the outer side of the box body wall plate 3 is bent and turned, and the sealing groove is formed in the sealing gasket 2, so that the sealing area of the pipeline 4 is effectively increased.
This device simple structure, it is easy and simple to handle, can conveniently solve effectively and be drawn forth the cable and pass the problem that influences the test area negative pressure environmental parameter after the negative pressure environment box wallboard by the test piece, guarantee experiment effectively goes on, and is economical effective.
Drawings
FIG. 1 is a schematic view of a cable and conduit wall penetrating device;
the sealing structure comprises a sealing plate 1, a sealing gasket 2, a box body wall plate 3, a pipeline 4, a bolt 5 and a plug 6.
Detailed Description
The present invention is described in further detail below.
Example 1
Fig. 1 is a schematic diagram of a cable and pipeline wall penetrating device, and as shown in fig. 1, in the embodiment, a sealing device for penetrating a wall of a negative pressure chamber test pipeline is provided, and the sealing device comprises a sealing plate 1, a sealing gasket 2, a plug 6 and a bolt 5.
The pipeline 4 penetrates through the box body wall plate 3 of the negative pressure cabin and is bent and turned at the outer side of the box body wall plate 3; the sealing plate 1 and the sealing gasket 2 are positioned on the outer side of the negative pressure bin;
the sealing gasket 2 is provided with a sealing groove, and the bent pipeline 4 is positioned in the sealing groove. The sealing plate 1 is matched with the box body wall plate 3 to clamp and press the sealing gasket 2; and the sealing plate 1 and the sealing gasket 2 are fixedly connected with the box body wall plate 3 through bolts 5.
The pipeline 4 sequentially penetrates through the sealing groove of the sealing gasket 2 and the plug 6, and a part of the plug 6 is arranged in the sealing groove to seal the sealing groove; and the sealing plate 1 is matched with the box body wall plate 3 to clamp and press the plug 6. The opening of the plug 6 is in sealing fit with the pipeline 4, and in this embodiment, the plug 6 is a tapered plug.
Furthermore, a sealing groove is arranged in the middle of the sealing gasket 2, and one end of the sealing groove is opened to the end part of the sealing gasket 2; the sealing gasket 2 is provided with a sealing groove, and the pipeline 4 is wound with a sealing body in the circumferential direction and then is arranged in the sealing groove; the sealing groove and the sealing body cooperate to increase the sealing area of the pipeline 4. In this embodiment, the sealing body may be a sponge. In the present embodiment, the bolt 5 is provided with an adjusting nut. The sealing gasket 2 is a sticking sponge or a rubber gasket. Of course, the sealing gasket 2 may be provided with a plurality of sealing grooves for sealing a plurality of pipelines.
Example 2
In this embodiment, there is provided a sealing method for a negative pressure chamber test pipeline through-wall, which uses the sealing device as described above, and the sealing method includes:
the pipeline 4 penetrates through the box body wall plate 3 of the negative pressure cabin and is bent and turned at the outer side of the box body wall plate 3;
the sealing gasket 2 is provided with a sealing groove, the bent pipeline 4 passes through the plug 6, and the pipeline 4 is wound around the sealing body and then is arranged in the sealing groove; one part of the plug 6 is arranged in the sealing groove;
the sealing plate 1 is matched with the box body wall plate 3 to clamp and tightly press the sealing gasket 2 and the plug 6;
and the seal plate 1 and the seal gasket 2 are fixedly connected with the box body wall plate 3 by adjusting nuts of the adjusting bolts 5.
Further, the screw of the adjusting bolt 5 passes through the sealing plate 1 and the gasket 2 and is screwed with the box wall plate 3.
Exemplarily, in the process of a certain icing wind tunnel test, the working state of a GJB-16 icing detector needs to be monitored, and the product leading-out cables (1) need to penetrate through the bottom wall plate of the icing wind tunnel test section.
In order to solve the problem, the sealing device is adopted, the device leads out a cable and turns to a pipeline through a wall plate with sponge, the contact area is increased, and the sealing is automatically pressed and sealed through the internal and external pressure difference of the environment box. The specific setting steps are as follows:
the first step is as follows: and leading out a cable from the tested product GJB-16 icing detector to penetrate through the hole wall reserved hole.
The second step is that: cutting a strip-shaped gap at the middle position of the multilayer bonding sponge; in this embodiment, the gasket 2 is made of a multi-layer adhesive sponge.
The third step: fixing the slotted bonding sponge on the sealing plate. The pipeline is wrapped with sponge and placed in a tank.
The fourth step: and wrapping the pipeline by using sponge and winding an adhesive tape for fixing to form the plug. In this embodiment, the conical plug is formed by winding a sponge and an adhesive tape.
The fifth step: and fixing the sealing plate with the bonding sponge at the position of a reserved hole of the box body wall plate, preliminarily fixing the sealing plate with 4 bolts with adjusting nuts, and partially positioning the plug in the notch of the sealing gasket.
And a sixth step: when a negative pressure environment is formed in the environment box body, the reserved adjusting bolt is adjusted, and the sealing plate is fastened.
Claims (8)
1. The sealing device for the wall penetration of the negative pressure chamber test pipeline is characterized by comprising a sealing plate (1), a sealing gasket (2), a plug (6) and a bolt (5);
the pipeline (4) penetrates through the box body wall plate (3) of the negative pressure bin and is bent and turned at the outer side of the box body wall plate (3); the sealing plate (1) and the sealing gasket (2) are positioned on the outer side of the negative pressure bin;
the sealing gasket (2) is provided with a sealing groove, and the bent pipeline (4) is positioned in the sealing groove; the sealing plate (1) is matched with the box body wall plate (3) to clamp and press the sealing gasket (2); the sealing plate (1) and the sealing gasket (2) are fixedly connected with the box body wall plate (3) through bolts (5);
the pipeline (4) sequentially penetrates through the sealing groove of the sealing gasket (2) and the plug (6), and one part of the plug (6) is arranged in the sealing groove to seal the sealing groove; the sealing plate (1) is matched with the box body wall plate (3) to clamp and press the plug (6).
2. The sealing device according to claim 1, wherein a sealing groove is formed in the middle of the sealing gasket (2), and one end of the sealing groove extends to the end of the sealing gasket (2); the pipeline (4) is wound around the sealing body in the circumferential direction and then is arranged in the sealing groove; the sealing groove and the sealing body cooperate to increase the sealing area of the pipeline (4).
3. Sealing device according to claim 1, characterized in that the bolt (5) is provided with an adjusting nut.
4. Sealing device according to claim 1, characterized in that the sealing gasket (2) is a sticking sponge or a rubber gasket.
5. A sealing device according to claim 1, wherein the opening of the plug (6) sealingly engages the pipeline (4).
6. A sealing device according to claim 5, characterized in that the plug (6) is a conical plug.
7. A sealing method for negative pressure chamber test pipeline wall penetration, using the sealing device of any one of claims 1 to 6, characterized in that the sealing method comprises:
the pipeline (4) penetrates through the box body wall plate (3) of the negative pressure bin and is bent and turned at the outer side of the box body wall plate (3);
the sealing gasket (2) is provided with a sealing groove, and the pipeline (4) is wound around the sealing body and then is arranged in the sealing groove; the bent pipeline (4) penetrates through the plug (6), and one part of the plug (6) is arranged in the sealing groove;
the sealing plate (1) is matched with the box body wall plate (3) to clamp and press the sealing gasket (2) and the plug (6);
and the adjusting nut of the adjusting bolt (5) fixedly connects the sealing plate (1) and the sealing gasket (2) with the box body wall plate (3).
8. The sealing method according to claim 7, characterized in that the screws of the adjusting bolts (5) pass through the sealing plate (1) and the gasket (2) and are screwed with the box wall plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911283657.2A CN111122098A (en) | 2019-12-13 | 2019-12-13 | Sealing device and sealing method for negative pressure bin test pipeline wall penetration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911283657.2A CN111122098A (en) | 2019-12-13 | 2019-12-13 | Sealing device and sealing method for negative pressure bin test pipeline wall penetration |
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| Publication Number | Publication Date |
|---|---|
| CN111122098A true CN111122098A (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911283657.2A Pending CN111122098A (en) | 2019-12-13 | 2019-12-13 | Sealing device and sealing method for negative pressure bin test pipeline wall penetration |
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| CN (1) | CN111122098A (en) |
Citations (9)
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|---|---|---|---|---|
| SU943151A1 (en) * | 1980-12-17 | 1982-07-15 | Предприятие П/Я Р-6218 | Apparatus for determining aerodynamic characteristics of pneumatic transport system container |
| CN102863158A (en) * | 2011-07-05 | 2013-01-09 | 洛阳兰迪玻璃机器股份有限公司 | Vacuum glass sealing method and device |
| CN203604824U (en) * | 2013-11-14 | 2014-05-21 | 北京金日恒升科技有限公司 | Novel cable sealing gasket |
| CN203857975U (en) * | 2014-05-26 | 2014-10-01 | 北京金自天成液压技术有限责任公司 | Sensor protecting device with combined structure and hydraulic cylinder |
| CN203857138U (en) * | 2014-04-29 | 2014-10-01 | 柳州柳工挖掘机有限公司 | Cab pipeline via hole sealing device |
| CN204533839U (en) * | 2015-03-31 | 2015-08-05 | 安徽五信新材料有限公司 | A kind of cut reducing elastic module sealed for cable and pipeline penetration hole |
| CN206602428U (en) * | 2017-04-01 | 2017-10-31 | 广州钜源泵业有限公司 | A kind of cable seal structure applied to immersible pump |
| CN208874259U (en) * | 2018-08-30 | 2019-05-17 | 西安兆瓦电气科技有限公司 | A kind of cable installation sealing device |
| CN209448036U (en) * | 2019-07-08 | 2019-09-27 | 昆明明超电缆有限公司 | A kind of steel-tape armouring pvc sheath quad |
-
2019
- 2019-12-13 CN CN201911283657.2A patent/CN111122098A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU943151A1 (en) * | 1980-12-17 | 1982-07-15 | Предприятие П/Я Р-6218 | Apparatus for determining aerodynamic characteristics of pneumatic transport system container |
| CN102863158A (en) * | 2011-07-05 | 2013-01-09 | 洛阳兰迪玻璃机器股份有限公司 | Vacuum glass sealing method and device |
| CN203604824U (en) * | 2013-11-14 | 2014-05-21 | 北京金日恒升科技有限公司 | Novel cable sealing gasket |
| CN203857138U (en) * | 2014-04-29 | 2014-10-01 | 柳州柳工挖掘机有限公司 | Cab pipeline via hole sealing device |
| CN203857975U (en) * | 2014-05-26 | 2014-10-01 | 北京金自天成液压技术有限责任公司 | Sensor protecting device with combined structure and hydraulic cylinder |
| CN204533839U (en) * | 2015-03-31 | 2015-08-05 | 安徽五信新材料有限公司 | A kind of cut reducing elastic module sealed for cable and pipeline penetration hole |
| CN206602428U (en) * | 2017-04-01 | 2017-10-31 | 广州钜源泵业有限公司 | A kind of cable seal structure applied to immersible pump |
| CN208874259U (en) * | 2018-08-30 | 2019-05-17 | 西安兆瓦电气科技有限公司 | A kind of cable installation sealing device |
| CN209448036U (en) * | 2019-07-08 | 2019-09-27 | 昆明明超电缆有限公司 | A kind of steel-tape armouring pvc sheath quad |
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| LAN ZHANG等: "Mechanics analysis and performance research of hermetic rubber barrel for large diameter submarine pipeline stopper used in deepwater environment", 《POLYMER TESTING》 * |
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Application publication date: 20200508 |
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