CN204459547U - A kind of pipeline sealing device - Google Patents

A kind of pipeline sealing device Download PDF

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Publication number
CN204459547U
CN204459547U CN201520067586.3U CN201520067586U CN204459547U CN 204459547 U CN204459547 U CN 204459547U CN 201520067586 U CN201520067586 U CN 201520067586U CN 204459547 U CN204459547 U CN 204459547U
Authority
CN
China
Prior art keywords
flange
seal
flange plate
pipeline
vent
Prior art date
Application number
CN201520067586.3U
Other languages
Chinese (zh)
Inventor
孙国友
王恒
鲁志远
王珍珍
余阳阳
马力
Original Assignee
郑州大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 郑州大学 filed Critical 郑州大学
Priority to CN201520067586.3U priority Critical patent/CN204459547U/en
Application granted granted Critical
Publication of CN204459547U publication Critical patent/CN204459547U/en

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Abstract

The utility model provides a kind of pipeline sealing device, comprise the left flange of two Flange joint and right flange, the outside of left flange and right flange is all connected with pipeline, left flange comprises left flange plate, right flange comprises right flange plate, gap between left flange plate and right flange plate adjacent surface is called seal clearance, at left flange plate, on the seal clearance of right flange plate, hoop is provided with the seal groove for installing seal ring in the inner part, in seal groove, seal ring is installed, left flange plate or right flange plate are also provided with vent, on a left side, right flange in the radial direction, vent is positioned at the outside of seal groove, vent is through left flange plate or right flange plate, left flange plate or the right flange plate at vent place connect Packed test chamber.The pipeline sealing device that the utility model provides, provides good sealability and leak detection performance.

Description

A kind of pipeline sealing device
Technical field
The utility model relates to seal for pipe joints field, especially relates to a kind of seal arrangement.
Background technique
The inflammable gass such as rock gas have the characteristics such as inflammable, explosive, require good sealability to pipe-line equipment.Static seal is modal seal form in pipe-line system, applies impacting force by bolt to seal element, makes seal element produce elasticity or yield deformation, fills up the gap in upper-lower seal gap, stop and leak.But according to statistics, in pipe-line system, the 60%-70% of unscheduled maintenance amount carries out for seal point.Therefore, need to design a kind of novel seal for pipe joints form, there is good sealing and leak detection performance.
Model utility content
The purpose of this utility model is to provide a kind of pipeline sealing device, provides good sealability and leak detection performance.
The technical solution of the utility model is:
A kind of pipeline sealing device, comprise the left flange of two Flange joint and right flange, the outside of left flange and right flange is all connected with pipeline, left flange comprises left flange plate, right flange comprises right flange plate, gap between left flange plate and right flange plate adjacent surface becomes seal clearance, at left flange plate, on the seal clearance of right flange plate, hoop is provided with the seal groove for installing seal ring in the inner part, in seal groove, seal ring is installed, left flange plate or right flange plate are also provided with vent, on a left side, right flange in the radial direction, vent is positioned at the outside of seal groove, vent is through left flange plate or right flange plate, left flange plate or the right flange plate at vent place connect Packed test chamber, described test chamber is provided with valve, the two ends of vent are communicated with test chamber with seal clearance respectively, the ventilating hole with pipeline communication is provided with in the inner side of seal clearance place seal groove.
Also be provided with tenon-slot type sealing configuration between described left and right flanges dish, in left and right flanges in the radial direction, tenon-slot type sealing configuration is between seal groove and the bolt for clamp flange.
At tenon-slot type sealing configuration place, between left and right flanges dish, be provided with the pad for sealing.
Seal ring is C V-shaped ring.
C V-shaped ring comprises nested nonmetal C V-shaped ring and metal C V-shaped ring, and nonmetal C V-shaped ring is positioned at the outside of metal C V-shaped ring.
The center line of vent is vertical with seal clearance.
Left and right flanges comprises the cylindrical neck portion be connected with left and right flanges dish one respectively.
Test chamber comprises housing, and the Flange joint at vent place has pipeline, and the outer side surface of this pipeline and the outer side surface of flange and housing form test chamber.
Advantage of the present utility model:
1, when in pipeline during conveying high-pressure gas, pressurized gas enter in the cavity of C shape metallic packing ring by ventilating hole, compressive strain is produced to C shape metallic packing ring, seal pressure on flange seal gap is increased, along with the rising of conveying gas pressure, seal pressure power on seal clearance raises, and sealability is better, has the effect of self-tightening sealing.And when carrying gas, only have C type metallic packing ring to touch conveying gas, avoid conveying gas to the infringement of nonmetal seal ring.
2, adopt the sealing of C V-shaped ring and tenon-slot type sealing, carried out double seal to pipeline, even if during first C V-shaped ring seal failure, tenon-slot type sealing also plays sealing effect, is unlikely to conveying gas and is directly leaked in air.When the seal failure of C V-shaped ring, fed sheet of a media is revealed, test chamber can be entered into by vent, inspector only needs to detect in test chamber whether have fed sheet of a media, can judge whether pipeline sealing device lost efficacy, test chamber is furnished with a valve, directly opens valve and can detect whether have Leakage Gas, convenient detection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1.
In figure, the left pipeline of 1-; 2-left flange plate; 3-bolt; The right flange plate of 4-; 5-tenon-slot type sealing configuration; 6-nut; 7-valve; 8-test chamber; The right pipeline of 9-; 10-pad; 11-C V-shaped ring; 12-ventilating hole; The nonmetal C V-shaped ring of 13-; 14-metal C V-shaped ring; 15-vent; 16-seal clearance; The left flange of 17-; The right flange of 18-; 19-seal groove.
Embodiment
As shown in Figure 1, 2, the utility model comprises left flange 17, the right flange 18 of two Flange joint, and the outside of left and right flanges 17,18 is connected to left and right pipeline 1,9.Connected by bolt 3, plain washer, nut 6 between left flange 17, right flange 18.Each flange includes the cylindrical neck portion 20 be connected with flange plate one.Gap between left flange plate 2 and right flange plate 4 adjacent surface is called seal clearance 16.
Left and right flanges 17,18 comprises left flange plate 2, right flange plate 4 respectively, the seal clearance 16 of left flange plate 2, right flange plate 4 is provided with seal groove 19 for installing seal ring in the inner part, be provided with seal ring in seal groove 19, seal ring is C V-shaped ring 11.C V-shaped ring 11 comprises nested nonmetal C V-shaped ring 13 and metal C V-shaped ring 14, and nonmetal C V-shaped ring 13 is positioned at the outside of metal C V-shaped ring 14.
Also be provided with tenon-slot type sealing configuration 5 between left and right flanges dish 2,4, tenon-slot type sealing configuration 5 is between seal groove 19 and the bolt 3 for clamp flange.The pad 10 for sealing is provided with in the middle of tenon-slot type sealing configuration 5.
Right flange plate 4 is laterally provided with vent 15, and the center line of vent 15 is vertical with seal clearance 16.In radial directions, the suction port of vent 15 is between seal groove 19 and tenon-slot type sealing configuration, vent 15 is through right flange plate 4, the right flange plate 4 at vent 15 place connects Packed test chamber 8, test chamber 8 is provided with valve 7, and the two ends of vent 15 are communicated with test chamber 8 with seal clearance 16 respectively.Test chamber 8 comprises housing, and the right flange 18 at vent 15 place is connected with right pipeline 9, and the outer side surface of right pipeline 9 and the outer side surface of right flange 18 and housing form test chamber 8 jointly, directly can utilize right pipeline 9, a part that right flange 18 forms test chamber 8.In radial directions, the ventilating hole 12 with pipeline communication is provided with in the inner side of seal clearance 16 place seal groove 19.
The beneficial effects of the utility model:
1, tenon-slot type sealing 5 and C V-shaped ring 11 is adopted: be made up of nonmetal C V-shaped ring 13 and metal C V-shaped ring 14, nonmetal C V-shaped ring 13 is nested with metal C V-shaped ring 14.Tight a bolt 3 time, bolt force by flange seal gap 16 compress gasket 10 and C V-shaped ring 11, in C V-shaped ring 11, compresses the nonmetal seal ring 13 of C shape and produces compressive strain, and be filled with a sealing 16 gaps formed between gap, forms sealing.When in pipeline during conveying high-pressure gas, pressurized gas enter in the cavity of C shape metallic packing ring 14 by ventilating hole 12, compressive strain is produced to C shape metallic packing ring 14, seal pressure on flange seal gap 16 is increased, along with the rising of conveying gas pressure, seal pressure power on seal clearance 16 raises, and sealability is better, has the effect of self-tightening sealing.And when carrying gas, only have C type metallic packing ring 14 to touch conveying gas, avoid conveying gas to the infringement of nonmetal seal ring 13.
2, adopt the sealing of C V-shaped ring and tenon-slot type sealing, carried out double seal to pipeline, even if during first C V-shaped ring 14 seal failure, tenon-slot type sealing also plays sealing effect, is unlikely to conveying gas and is directly leaked in air.When 11 seal failure of C V-shaped ring, fed sheet of a media is revealed, test chamber 8 can be entered into by vent 15, inspector only needs to detect in test chamber 8 whether have fed sheet of a media, can judge whether pipeline sealing device lost efficacy, test chamber 8 is furnished with a valve 7, directly opens valve 7 and can detect whether have Leakage Gas, convenient detection.

Claims (9)

1. a pipeline sealing device, comprise the left flange of two Flange joint and right flange, the outside of left flange and right flange is all connected with pipeline, left flange comprises left flange plate, right flange comprises right flange plate, gap between left flange plate and right flange plate adjacent surface is called seal clearance, it is characterized in that: at left flange plate, on the seal clearance of right flange plate, hoop is provided with the seal groove for installing seal ring in the inner part, in seal groove, seal ring is installed, left flange plate or right flange plate are also provided with vent, on a left side, right flange in the radial direction, vent is positioned at the outside of seal groove, vent is through left flange plate or right flange plate, left flange plate or the right flange plate at vent place connect Packed test chamber, described test chamber is provided with valve, the two ends of vent are communicated with test chamber with seal clearance respectively, the ventilating hole with pipeline communication is provided with in the inner side of seal clearance place seal groove.
2. pipeline sealing device according to claim 1, it is characterized in that: between described left and right flanges dish, be also provided with tenon-slot type sealing configuration, in left and right flanges in the radial direction, tenon-slot type sealing configuration is between seal groove and the bolt for clamp flange.
3. pipeline sealing device according to claim 2, is characterized in that: in left and right flanges in the radial direction, and the suction port of vent is between seal groove and tenon-slot type sealing configuration.
4. pipeline sealing device according to claim 2, is characterized in that: at tenon-slot type sealing configuration place, is provided with the pad for sealing between left and right flanges dish.
5. pipeline sealing device according to claim 1 and 2, is characterized in that: seal ring is C V-shaped ring.
6. pipeline sealing device according to claim 5, is characterized in that: C V-shaped ring comprises nested nonmetal C V-shaped ring and metal C V-shaped ring, and nonmetal C V-shaped ring is positioned at the outside of metal C V-shaped ring.
7. pipeline sealing device according to claim 1 and 2, is characterized in that: the center line of vent is vertical with seal clearance.
8. pipeline sealing device according to claim 1 and 2, is characterized in that: left and right flanges comprises the cylindrical neck portion be connected with left and right flanges dish one respectively.
9. pipeline sealing device according to claim 1 and 2, is characterized in that: test chamber comprises housing, the Flange joint at vent place has pipeline, and the outer side surface of this pipeline and the outer side surface of flange and housing form test chamber.
CN201520067586.3U 2015-01-31 2015-01-31 A kind of pipeline sealing device CN204459547U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520067586.3U CN204459547U (en) 2015-01-31 2015-01-31 A kind of pipeline sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520067586.3U CN204459547U (en) 2015-01-31 2015-01-31 A kind of pipeline sealing device

Publications (1)

Publication Number Publication Date
CN204459547U true CN204459547U (en) 2015-07-08

Family

ID=53666431

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520067586.3U CN204459547U (en) 2015-01-31 2015-01-31 A kind of pipeline sealing device

Country Status (1)

Country Link
CN (1) CN204459547U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105715890A (en) * 2016-04-22 2016-06-29 武汉工程大学 Leakage monitoring system of quickly disassembled flange
CN106704738A (en) * 2016-12-26 2017-05-24 中国航空工业集团公司西安飞机设计研究所 Multi-functional flange plate
CN108223183A (en) * 2018-03-21 2018-06-29 潍柴动力股份有限公司 The seal assembly of a kind of cylinder head and exhaust manifold, engine and vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105715890A (en) * 2016-04-22 2016-06-29 武汉工程大学 Leakage monitoring system of quickly disassembled flange
CN106704738A (en) * 2016-12-26 2017-05-24 中国航空工业集团公司西安飞机设计研究所 Multi-functional flange plate
CN108223183A (en) * 2018-03-21 2018-06-29 潍柴动力股份有限公司 The seal assembly of a kind of cylinder head and exhaust manifold, engine and vehicle

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150708

Termination date: 20160131