CN215674080U - Pipeline flange connection leak protection gas seal structure - Google Patents
Pipeline flange connection leak protection gas seal structure Download PDFInfo
- Publication number
- CN215674080U CN215674080U CN202122193870.3U CN202122193870U CN215674080U CN 215674080 U CN215674080 U CN 215674080U CN 202122193870 U CN202122193870 U CN 202122193870U CN 215674080 U CN215674080 U CN 215674080U
- Authority
- CN
- China
- Prior art keywords
- ring
- pipeline
- sealing
- arc groove
- flange
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 61
- 238000001125 extrusion Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model discloses a flange-connected air leakage-proof sealing structure for a pipeline, which comprises a first pipeline and a second pipeline, wherein opposite ends of the first pipeline and the second pipeline are fixedly connected through flanges, a first sealing rubber ring is arranged on the inner side between the flanges, an arc groove is formed in the right side of an inner cavity of the first pipeline, a second rubber sealing ring is fixedly connected to the inner side of the arc groove, and an inserting ring at the left end of the second pipeline is movably inserted in the arc groove; the opposite sides of the left end face of the inner cavity of the arc groove and the left end face of the inserting ring are both provided with circular ring grooves, second sealing rubber rings are movably inserted in the circular ring grooves, and each second sealing rubber ring comprises a circular ring hollow cavity, a circular ring extrusion strip and an elastic sheet. Through equipment overall structure, the leakproofness of increase first pipeline and second pipeline flange joint that can be great has increased the seal performance of junction. Through the annular convex ring structure, the impact force of water flowing at the connecting gap of the first pipeline and the second pipeline is small.
Description
Technical Field
The utility model relates to the technical field of machinery, in particular to an air leakage prevention sealing structure for pipeline flange connection.
Background
The pipe flanges are classified into the following six basic types according to the connection mode with the pipe: flat welded flanges, butt welded flanges, socket welded flanges, loose flanges, threaded flanges and integral flanges, the flanges are also called flange flanges or flanges. The flange is a part for connecting the shafts and is used for connecting pipe ends; there are also flanges on the inlet and outlet of the equipment for the connection between two pieces of equipment, such as reducer flanges. The flange connection or flange joint is a detachable connection which is formed by connecting a flange, a gasket and a bolt with each other to form a group of combined sealing structures. The pipeline flange is a flange for piping in a pipeline device, and is used on equipment to be an inlet and outlet flange of the equipment. The flanges are provided with holes, and the two flanges are tightly connected through bolts. The flanges are sealed with gaskets. The flange is divided into a threaded connection (screw thread connection) flange, a welding flange and a clamping flange. The flanges are used in pairs, and the low-pressure pipeline can be connected with the screw flanges through the screw threads.
When the pipeline flange is used, the connection part is easy to age when being used for a long time, and the air tightness of the flange connection part is poor, so that the air leakage prevention sealing structure for the pipeline flange connection is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an air leakage prevention sealing structure for flange connection of a pipeline, which can greatly increase the sealing degree of the flange connection part of a first pipeline and a second pipeline and increase the sealing performance of the connection part.
The utility model discloses a pipeline flange connection air leakage prevention sealing structure which adopts the technical scheme that the pipeline flange connection air leakage prevention sealing structure comprises a first pipeline and a second pipeline, opposite ends of the first pipeline and the second pipeline are fixedly connected through flanges, a first sealing rubber ring is arranged on the inner side between the flanges, an arc groove is formed in the right side of an inner cavity of the first pipeline, a second rubber sealing ring is fixedly connected to the inner side of the arc groove, and an inserting ring at the left end of the second pipeline is movably inserted in the arc groove;
the opposite sides of the left end face of the inner cavity of the arc groove and the left end face of the inserting ring are both provided with circular ring grooves, second sealing rubber rings are movably inserted in the circular ring grooves, and each second sealing rubber ring comprises a circular ring hollow cavity, a circular ring extrusion strip and an elastic sheet.
Preferably, the cross section of the second rubber sealing ring is a right triangle, the outer side surface of the inserting ring is an inclined surface, and the inclined surface of the second rubber sealing ring and the inclined surface of the inserting ring are mutually attached.
As a preferred scheme, the right end of the inner side wall of the first pipeline and the right end of the inner side wall of the inserting ring are fixedly connected with circular ring convex rings.
According to the preferable scheme, a circular ring hollow cavity is formed in the middle of the second sealing rubber ring, circular ring extrusion strips are inserted into the left side and the right side of the inner cavity of the circular ring hollow cavity in an inserting mode, and the cross section of each circular ring extrusion strip is arc-shaped.
Preferably, a plurality of elastic pieces are fixedly arranged between the circular ring extrusion strips in an annular array, the elastic pieces are all arc-shaped, and the elastic pieces are arranged oppositely from top to bottom.
The utility model discloses an air leakage prevention sealing structure for pipeline flange connection, which has the beneficial effects that:
through the overall structure of equipment, the leakproofness of increase first pipeline and second pipeline flange joint that can be great has increased the seal performance of junction.
Through being equipped with the circular arc groove, second rubber seal ring, the structure of plug ring and second sealing rubber ring, the inclined plane of second rubber seal ring and the inclined plane of plug ring laminate each other, can increase like this and the sealed degree of the inclined plane laminating of plug ring, the flexure strip is in the extrusion state, can exert the power to the outside to two ring extrusion strips, thereby great increase second sealing rubber ring's elasticity, thereby make the great increase of the sealed degree of second sealing rubber ring junction, thereby make flange joint department sealed degree inseparabler, the sealed degree effect is better.
Through the structure that is equipped with the annular bulge loop, can make the water impact force of first pipeline and second pipeline joint gap department flow less, make the impact force of liquid less like this, increase equipment leakproofness.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;
fig. 4 is a sectional view of a second rubber seal ring of the present invention.
In the figure: 1 first pipeline, 2 second pipelines, 3 flanges, 4 circular arc grooves, 5 second rubber sealing rings, 6 first sealing rubber rings, 7 plug rings, 8 second sealing rubber rings, 81 circular ring hollow cavities, 82 circular ring extrusion strips, 83 elastic sheets and 9 circular ring convex rings.
Detailed Description
The utility model will be further elucidated and described with reference to the embodiments and drawings of the specification:
referring to fig. 1-4, the present invention: the utility model provides a pipeline flange joint leak protection gas seal structure, includes first pipeline 1 and second pipeline 2, first pipeline 1 is the same with second pipeline 2 structure, first pipeline 1 and 2 looks remote terminals of second pipeline pass through flange 3 fixed linking to each other, and flange 3 adopts the current flange on the market, the inboard is equipped with first sealing rubber ring 6 between the flange 3, and first sealing rubber ring 6 can increase the leakproofness of two flange 3 junctions, open the inner chamber right side of first pipeline 1 has circular arc groove 4, the inboard fixedly connected with second rubber sealing ring 5 of circular arc groove 4, and the inside activity of circular arc groove 4 is pegged graft and is had the grafting ring 7 of 2 left ends of second pipeline.
The opposite sides of the left end face of the inner cavity of the circular arc groove 4 and the left end face of the inserting ring 7 are both provided with circular ring grooves, the inside of each circular ring groove is movably inserted with a second sealing rubber ring 8, and each second sealing rubber ring 8 comprises a circular ring hollow cavity 81, a circular ring extrusion strip 82 and an elastic sheet 83. The second sealing rubber ring 8 can increase the sealing degree of the joint of the first pipeline 1 and the plug ring 7.
As shown in fig. 2 and 3:
the cross-section of second rubber seal ring 5 is right triangle, the lateral surface of grafting ring 7 is the inclined plane, the inclined plane of second rubber seal ring 5 and the inclined plane of grafting ring 7 laminate each other. The inclined plane of the second rubber sealing ring 5 and the inclined plane of the inserting ring 7 are mutually attached, so that the sealing degree of the joint can be increased.
As shown in fig. 3:
the right end of the inner side wall of the first pipeline 1 and the right end of the inner side wall of the inserting ring 7 are fixedly connected with a circular ring convex ring 9. The annular convex ring 9 can enable the impact force of water flowing at the connecting gap of the first pipeline 1 and the second pipeline 2 to be smaller, so that the impact force of liquid is smaller, and the sealing degree of the equipment is increased.
As shown in fig. 4:
the middle part of the second sealing rubber ring 8 is provided with a circular ring hollow cavity 81, the left side and the right side of the inner cavity of the circular ring hollow cavity 81 are inserted with circular ring extrusion strips 82, and the cross section of each circular ring extrusion strip 82 is circular arc. The ring pressing strip 82 can apply a force to the side wall of the second rubber seal ring 8.
As shown in fig. 4:
a plurality of elastic pieces 83 are fixedly arranged between the circular ring extrusion strips 82 in an annular array, the elastic pieces 83 are all arc-shaped, and the elastic pieces 83 are arranged oppositely up and down. The elastic piece 83 is in an extrusion state, and can apply outward force to the two circular ring extrusion strips 82, so that the elasticity of the second sealing rubber ring 8 is greatly increased, and the sealing degree of the joint of the second sealing rubber ring 8 is greatly increased.
The principle is as follows: when the flanges are connected, the two flanges are fixedly connected through bolts, and the first sealing rubber ring 6 is positioned on the inner side between the two flanges 3;
the right side of the inner side of the first pipeline 1 is provided with an arc groove 4, the left end of the first pipeline is provided with an inserting ring 7, the left end of the inner side of the second pipeline 2 is provided with an inserting ring 7, the right side of the inner side of the second pipeline is provided with an arc groove 4, the inserting ring 7 is inserted into the arc groove 4, different pipelines are sequentially connected in an inserting mode, the inner side of the arc groove 4 is provided with a second rubber sealing ring 5, the inclined surface of the second rubber sealing ring 5 is attached to the inclined surface of the inserting ring 7, and therefore the sealing degree of the inclined surface of the inserting ring 7 can be increased;
the circular ring convex ring 9 can enable the impact force of water flowing at the connecting gap of the first pipeline 1 and the second pipeline 2 to be smaller, so that the impact force of liquid is smaller, and the sealing degree of equipment is increased;
and the inside activity of ring groove is pegged graft second sealing rubber ring 8, and flexure strip 83 is in extrusion state, can exert outside power to two ring extrusion strips 82 to great increase second sealing rubber ring 8's elasticity makes the great increase of degree of sealing of second sealing rubber ring 8 junction, thereby makes flange 3 junction degree of sealing inseparabler, and the degree of sealing effect is better.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The utility model provides a leak protection gas seal structure is connected to pipeline flange, includes first pipeline (1) and second pipeline (2), first pipeline (1) and second pipeline (2) looks remote end pass through flange (3) fixed the linking to each other, its characterized in that: a first sealing rubber ring (6) is arranged on the inner side between the flanges (3), an arc groove (4) is formed in the right side of an inner cavity of the first pipeline (1), a second rubber sealing ring (5) is fixedly connected to the inner side of the arc groove (4), and an inserting ring (7) at the left end of the second pipeline (2) is movably inserted into the arc groove (4);
the left end face of the inner cavity of the circular arc groove (4) and the opposite side of the left end face of the inserting ring (7) are both provided with circular ring grooves, second sealing rubber rings (8) are movably inserted in the circular ring grooves, and each second sealing rubber ring (8) comprises a circular ring hollow cavity (81), a circular ring extrusion strip (82) and an elastic sheet (83).
2. The anti-leakage sealing structure for the flange connection of the pipeline as claimed in claim 1, wherein: the cross-section of second rubber seal ring (5) is right triangle, the lateral surface of grafting ring (7) is the inclined plane, the inclined plane of second rubber seal ring (5) and the inclined plane of grafting ring (7) laminate each other.
3. The anti-leakage sealing structure for the flange connection of the pipeline as claimed in claim 1, wherein: the right end of the inner side wall of the first pipeline (1) and the right end of the inner side wall of the inserting ring (7) are fixedly connected with a circular ring convex ring (9).
4. The anti-leakage sealing structure for the flange connection of the pipeline as claimed in claim 2, wherein: the middle part of the second sealing rubber ring (8) is provided with a ring hollow cavity (81), the left side and the right side of the inner cavity of the ring hollow cavity (81) are spliced with ring extrusion strips (82), and the cross sections of the ring extrusion strips (82) are arc-shaped.
5. The anti-leakage sealing structure for the flange connection of the pipeline as claimed in claim 1, wherein: a plurality of elastic pieces (83) are fixedly arranged between the circular ring extrusion strips (82) in an annular array, the elastic pieces (83) are all arc-shaped, and the elastic pieces (83) are arranged up and down oppositely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122193870.3U CN215674080U (en) | 2021-09-10 | 2021-09-10 | Pipeline flange connection leak protection gas seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122193870.3U CN215674080U (en) | 2021-09-10 | 2021-09-10 | Pipeline flange connection leak protection gas seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215674080U true CN215674080U (en) | 2022-01-28 |
Family
ID=79962390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122193870.3U Expired - Fee Related CN215674080U (en) | 2021-09-10 | 2021-09-10 | Pipeline flange connection leak protection gas seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215674080U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118500488A (en) * | 2024-07-09 | 2024-08-16 | 浙江蓝宝石仪表科技有限公司 | Nested gas ultrasonic flowmeter and preparation method |
-
2021
- 2021-09-10 CN CN202122193870.3U patent/CN215674080U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118500488A (en) * | 2024-07-09 | 2024-08-16 | 浙江蓝宝石仪表科技有限公司 | Nested gas ultrasonic flowmeter and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215674080U (en) | Pipeline flange connection leak protection gas seal structure | |
| CN110307436B (en) | A PVC pipe tail head device | |
| CN219673586U (en) | Fire control pipeline connecting device | |
| CN217401971U (en) | A leak-proof sealing ring for pressing pipe fittings | |
| CN218954286U (en) | Positive pressure-resistant plastic composite pipe sleeve type flange connection device | |
| CN212056245U (en) | Natural gas transportation is with preventing leaking pipeline | |
| CN207750631U (en) | A kind of liquid interface tube device for plugging | |
| CN217056710U (en) | High-pressure-resistant flange plate with good sealing performance | |
| CN210424069U (en) | Special-shaped hole flange | |
| CN216843564U (en) | High-voltage-resistant insulating sealing gasket | |
| CN205173851U (en) | Rapid rush -repair device for high pressure resistance pipeline | |
| CN215293990U (en) | Leak protection mechanism is used in transmission of harmful gas pipeline | |
| CN212298041U (en) | Flange with good sealing effect | |
| CN216307063U (en) | A PE pipe that can be quickly connected | |
| CN212986377U (en) | Stainless steel fast-plugging groove pipe fitting | |
| CN210069178U (en) | Flaring clamp formula pipe connector | |
| CN222229760U (en) | An easy-to-connect stainless steel pipe assembly | |
| CN216279910U (en) | Aluminum alloy flange | |
| CN214331784U (en) | Air-tight pipeline joint | |
| CN213206907U (en) | All-metal pneumatic quick-insertion three-way connector | |
| CN221463161U (en) | Pipe fitting connecting piece with high sealing performance | |
| CN216009955U (en) | High-density polyethylene pipeline joint sealing device | |
| CN224214892U (en) | A flange structure for chemical pipelines with good sealing performance | |
| CN223708744U (en) | Valve turbine head device with multiple sealing structure | |
| CN221145707U (en) | Connecting piece for UPVC elbow |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |