CN210890509U - High-pressure pipeline flange connection structure - Google Patents
High-pressure pipeline flange connection structure Download PDFInfo
- Publication number
- CN210890509U CN210890509U CN201921955699.1U CN201921955699U CN210890509U CN 210890509 U CN210890509 U CN 210890509U CN 201921955699 U CN201921955699 U CN 201921955699U CN 210890509 U CN210890509 U CN 210890509U
- Authority
- CN
- China
- Prior art keywords
- pressure pipeline
- flange
- fastening
- sealing washer
- sealing
- 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.)
- Active
Links
Images
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model provides a high-pressure pipeline flange connecting structure, which comprises high-pressure pipelines connected with each other, flanges are arranged on two sides of the joint of the high-pressure pipeline, a first sealing ring is arranged between the flange and the high-pressure pipeline, a trapezoidal sealing ring is arranged between the first sealing ring and the high-pressure pipeline, fastening mechanisms in opposite directions are respectively arranged between the flanges at two sides and the outer side of the high-pressure pipeline, the fastening mechanism comprises a fastening disc arranged between the flange and the high-pressure pipeline and a fixing plate arranged on the high-pressure pipeline, a screw rod is arranged on the fixing plate in a penetrating way and is connected with the fastening disc, a nut is arranged at the other end of the screw rod opposite to the fastening disc, the fastening disc with be equipped with the second sealing washer between the flange, be equipped with the metal inner core in the second sealing washer, the second sealing washer with be equipped with the supporting pad between the first sealing washer. The utility model discloses higher leakproofness and reliability have.
Description
Technical Field
The utility model belongs to the technical field of the flange joint, concretely relates to high-pressure pipeline flange joint structure.
Background
The flange connection of the prior art has two structures of threaded flange connection and welding flange connection, the threaded flange connection structure is simple, the sealing surface of the lens pad is a spherical surface, the sealing is reliable, the processing, the installation and the maintenance are very convenient, the thread is processed, the local strength weakening and the local stress exist at the end part of the threaded connection, the safety and the reliability of the connection are insufficient, and the sealing performance of the pipeline connection is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-pressure pipeline flange joint structure has higher leakproofness and reliability.
The utility model provides a following technical scheme:
a high-pressure pipeline flange connecting structure comprises high-pressure pipelines which are connected with each other, flanges are arranged on two sides of the joint of the high-pressure pipelines, a first sealing ring is arranged between the flange and the high-pressure pipeline, a trapezoidal sealing ring is arranged between the first sealing ring and the high-pressure pipeline, fastening mechanisms in opposite directions are respectively arranged between the flange at two sides and the outer side of the high-pressure pipeline, the fastening mechanism comprises a fastening disc arranged between the flange and the high-pressure pipeline and a fixing plate arranged on the high-pressure pipeline, a screw rod is arranged on the fixing plate in a penetrating way and is connected with the fastening disc, a nut is arranged at the other end of the screw rod opposite to the fastening disc, the fastening disc with be equipped with the second sealing washer between the flange, be equipped with the metal inner core in the second sealing washer, the second sealing washer with be equipped with the supporting pad between the first sealing washer.
Preferably, the fastening disc is a union disc, one end of the screw is connected with the union disc, and the other end of the screw penetrates through the fixing plate.
Preferably, the supporting pad is embedded in the first sealing ring and the second sealing ring.
Preferably, a third sealing ring is further arranged between the fastening disc and the flange.
Preferably, the third sealing ring is a shuttle-shaped sealing ring, and a metal ring core is arranged in the shuttle-shaped sealing ring.
The utility model has the advantages that: a fastening structure is additionally arranged at the joint of the flange and the pipeline, so that the reliability and tightness of connection are ensured; and the multiple sealing structure is designed at the joint, so that the sealing reliability of the connection between the flange and the pipeline is ensured.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
marked as 1. high pressure pipe; 2. a flange; 3. a first seal ring; 31. a trapezoidal sealing ring; 4. a second seal ring; 41. a metal inner core; 42. a support pad; 5. fastening a disc; 51. a fixing plate; 52. a screw; 53. a nut; 54. and a third sealing ring.
Detailed Description
As shown in fig. 1, a high-pressure pipeline flange connection structure, including the high-pressure pipeline 1 of interconnect, there are flanges 2 on the both sides of the junction of high-pressure pipeline 1, be equipped with first sealing washer 3 between flange 2 and high-pressure pipeline 1, be equipped with trapezoidal sealing washer 31 between first sealing washer 3 and the high-pressure pipeline 1, be equipped with opposite direction's fastening device between both sides flange 2 and the high-pressure pipeline 1 outside respectively, fastening device is including establishing fastening disk 5 between flange 2 and high-pressure pipeline 1 and establishing fixed plate 51 on high-pressure pipeline 1, wear to be equipped with screw rod 52 on the fixed plate 51, screw rod 52 connects fastening disk 5, screw rod 52 is equipped with nut 53 on the relative fastening disk 5 other end, fastening disk 5 is the union disk, screw rod 52 one end connects the union disk, the other end wears to be established on fixed plate 51, fasten high-pressure pipeline 1 and flange 2 through screw. Be equipped with second sealing washer 4 between fastening disc 53 and the flange 2, be equipped with metal inner core 41 in the second sealing washer 4, be equipped with supporting pad 42 between second sealing washer 4 and the first sealing washer 3, supporting pad 42 inlays to be established on first sealing washer 3 and second sealing washer 4, plays the supporting role. Furthermore, a third sealing ring 54 is further arranged between the fastening disc 5 and the flange 2, the third sealing ring 54 is a shuttle-shaped sealing ring, a metal ring core is arranged in the shuttle-shaped sealing ring, the inner core improves the wear resistance of the sealing ring while the sealing performance is improved, and the shuttle-shaped sealing ring is more favorable for connection tightness.
As shown in fig. 1, in the use process of the high-pressure pipeline flange connection structure, a flange 2 is connected to a high-pressure pipeline 1, a first sealing ring 3 is designed at the joint of the inside of the pipeline and the flange 2, and trapezoidal sealing rings 31 are designed on two sides of the first sealing ring 3, so that a certain buffer space is formed between the flange 2 and the high-pressure pipeline 1 while the sealing performance is ensured, the extrusion deformation is prevented, and sealing raw materials are saved by the trapezoidal sealing rings 31; add between 2 outsides of both sides flange and the high pressure pipeline 1 and establish fastening dish 5, and opposite direction, further draw close the degree of tightness between pipeline and the flange 2 through screw rod 52, be equipped with second sealing washer 4 in fastening dish 5 and flange 2 junction, be equipped with metal inner core 41 in the second sealing washer 4, when improving each other degree of tightness, guarantee the wearability of sealing washer, add between second sealing washer 4 and the first sealing washer 3 and establish supporting pad 42, improve the steadiness of sealing washer and guarantee certain resiliency, improve the reliability of junction.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A high-pressure pipeline flange connection structure is characterized by comprising high-pressure pipelines which are connected with each other, flanges are arranged on two sides of the joint of the high-pressure pipeline, a first sealing ring is arranged between the flange and the high-pressure pipeline, a trapezoidal sealing ring is arranged between the first sealing ring and the high-pressure pipeline, fastening mechanisms in opposite directions are respectively arranged between the flanges at two sides and the outer side of the high-pressure pipeline, the fastening mechanism comprises a fastening disc arranged between the flange and the high-pressure pipeline and a fixing plate arranged on the high-pressure pipeline, a screw rod is arranged on the fixing plate in a penetrating way and is connected with the fastening disc, a nut is arranged at the other end of the screw rod opposite to the fastening disc, the fastening disc with be equipped with the second sealing washer between the flange, be equipped with the metal inner core in the second sealing washer, the second sealing washer with be equipped with the supporting pad between the first sealing washer.
2. A high-pressure pipe flange connection structure according to claim 1, wherein the fastening plate is a union plate, one end of the screw is connected to the union plate, and the other end of the screw penetrates the fixing plate.
3. A high-pressure pipe flange connection according to claim 1, wherein said support pad is embedded in said first seal ring and said second seal ring.
4. A high pressure pipe flange connection according to claim 1, wherein a third gasket is disposed between the tightening plate and the flange.
5. A high-pressure pipe flange connection according to claim 4, wherein the third seal ring is a shuttle-shaped seal ring, and a metal ring core is arranged in the shuttle-shaped seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921955699.1U CN210890509U (en) | 2019-11-13 | 2019-11-13 | High-pressure pipeline flange connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921955699.1U CN210890509U (en) | 2019-11-13 | 2019-11-13 | High-pressure pipeline flange connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210890509U true CN210890509U (en) | 2020-06-30 |
Family
ID=71322710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921955699.1U Active CN210890509U (en) | 2019-11-13 | 2019-11-13 | High-pressure pipeline flange connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210890509U (en) |
-
2019
- 2019-11-13 CN CN201921955699.1U patent/CN210890509U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201521735U (en) | High-pressure pipeline flange connecting structure | |
| CN105840931A (en) | Flexible connector for British standard pipe of low-pressure fluid conveying system | |
| CN210890509U (en) | High-pressure pipeline flange connection structure | |
| CN113983252A (en) | High-voltage connecting structure for steel wire mesh reinforced composite pipe and manufacturing method thereof | |
| CN106122639A (en) | A kind of hose connection device | |
| CN219828038U (en) | Galvanized pipe convenient to splice | |
| CN209818958U (en) | Drainage system pipeline mosaic structure | |
| CN211259911U (en) | Petroleum pipeline sealing device | |
| CN211779520U (en) | Sealing ring and sealing device | |
| CN209800931U (en) | Splicing-convenient corrugated pipe | |
| CN220170058U (en) | Multi-channel heat exchanger connecting assembly | |
| CN212107359U (en) | Sealing rubber ring for water pipe connection | |
| CN206861099U (en) | A kind of Petroleum Pipehead of good seal performance | |
| CN207145842U (en) | A kind of high strength plastic pipe connections | |
| CN210135354U (en) | Limiting expansion piece | |
| CN218032041U (en) | Anti-leakage nonmetal compensator | |
| CN205479829U (en) | A connecting piece for nonrust steel pipe | |
| CN220320599U (en) | Ultrahigh pressure shoulder type flexible joint | |
| CN205592529U (en) | Clamp connection piece | |
| CN220749333U (en) | Quick connection valve and connection structure thereof | |
| CN215807169U (en) | Plastic joint with metal protective sleeve | |
| CN214119267U (en) | Flexible joint for connecting fluid conveying pipelines | |
| JPH09217875A (en) | Base isolation fitting | |
| CN219606364U (en) | Clamp formula fast-assembling elbow spare | |
| CN217003499U (en) | Flexible pipe installation rand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |