CN204628874U - A kind of rectangular toe joint touch flange - Google Patents
A kind of rectangular toe joint touch flange Download PDFInfo
- Publication number
- CN204628874U CN204628874U CN201520231634.8U CN201520231634U CN204628874U CN 204628874 U CN204628874 U CN 204628874U CN 201520231634 U CN201520231634 U CN 201520231634U CN 204628874 U CN204628874 U CN 204628874U
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- flange
- rectangular
- wave tooth
- toe joint
- tooth
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Abstract
The utility model relates to a kind of rectangular toe joint touch flange, comprise upper flange, lower flange and wave tooth spacer, the profile of tooth of described wave tooth spacer is rectangular, the sealing surface of described upper flange and lower flange is respectively equipped with the rectangular serrate slot matched with the upper surface of wave tooth spacer and lower surface, the sealing surface of described upper flange and lower flange does not arrange boss.This flange effectively can reduce moment of flexure and stress and pad not easily offsets, good airproof performance, long working life.
Description
Technical field
The utility model relates to a kind of rectangular toe joint touch flange.
Background technique
Along with economic development and the becoming increasingly conspicuous of contradiction between energy supply and environmental protection; " safety, efficient, environmental protection, economy " becomes the direction of industrial development, and this is mainly reflected in the safe operation of high-temperature service and the tightness of connected system in petrochemical industry.
Flange joint is widely used in the joint of petrochemical industry equal pressure pipeline and pressurized container with its easy-disassembling-assembling advantage, when being in high temperature and high pressure condition for a long time, easily there is leakage failure in flange connections, existing flange often has the following disadvantages: flange (as concave-convex flange and the chase mortise flange) pad that 1) sealing surface is provided with boss is fixed in groove and not easily offsets, but the moment of flexure that flange plate produces is larger, cause pad unbalance stress, flange plate deflects, thus leak, under high-temperature high-pressure state, flange facing, pad and bolt all can be subject to very large stress, cause the creep of each component materials in Flange joint, piping flange connected system is caused to relax, finally cause leakage failure, 2) the end face of flange moment of flexure of not establishing the flange of boss (as face-flange and prominent face flange) to produce is less, but due to pad be not be fixed in groove, so easily offset, cause leakage.
Model utility content
The purpose of this utility model is to provide a kind of rectangular toe joint touch flange, and this flange can effectively reduce moment of flexure and stress, and pad not easily offsets, good airproof performance, long working life.
The technical solution of the utility model is:
A kind of rectangular toe joint touch flange, comprise upper flange, lower flange and wave tooth spacer, the profile of tooth of described wave tooth spacer is rectangular, the sealing surface of described upper flange and lower flange is respectively equipped with the rectangular serrate slot matched with the upper surface of wave tooth spacer and lower surface, the sealing surface of described upper flange and lower flange does not arrange boss.
As further improvement of the utility model, described wave tooth spacer is Expanded graphite metal wave tooth composite pad, and the main body of pad is metal frame, and the upper surface of metal frame and lower surface are equipped with Expanded graphite layer.
As further improvement of the utility model, there is radial deflection between the rectangular tooth on the upper and lower surface of described wave tooth spacer, side-play amount is half tooth distance.
As further improvement of the utility model, described upper flange and lower flange include the flange plate, cone neck and the cylinder that are connected successively, and described flange plate, cone neck and cylinder are as a whole.
As further improvement of the utility model, the flange plate of described upper flange and lower flange is equipped with bolt hole, upper flange and lower flange are bolted fixing.
The beneficial effects of the utility model are:
1) the utility model does not arrange boss, part eliminates the moment of flexure between attachment hole and pad force position, part eliminates the deflection and creep that high temperature and high pressure environment lower flange produces because of moment of flexure, the rectangular tooth on the upper and lower surface of wave tooth spacer coordinates with the rectangular serrate slot of upper and lower flange respectively, and pad not easily offsets.
2) adopt the seal form of rectangular toe joint touch, compared to common flange, increase effective sealing area, reduce the stress level between flange facing and gasket surface, enhance sealing effect.
3) multiple backlash of Expanded graphite metal wave tooth composite pad define multi-stage sealed, form a kind of seal form of similar labyrinth seal, can be heat energy by the kinetic energy of interior media, potential energy as much as possible, reduce the pressure energy of interior media, slow down and even stop a leak, Expanded graphite has very high adsorption force (can adsorb oils, organic molecule etc.) favorable sealing property simultaneously.
4) cylinder (i.e. birdsmouth) is as a whole with flange plate, avoids because butt welding weld bond defect causes leakage, and structure is simple, easy to use.
5) cone neck can increase the bearing capacity to moment of flexure, improves the moment of flexure ability to bear of Flange joint.
6) there is radial deflection between the rectangular tooth on the upper and lower surface of wave tooth spacer makes Expanded graphite metal wave tooth composite pad have better compression recovery performance.
Accompanying drawing explanation
Fig. 1 is overall structure sectional view of the present utility model.
Fig. 2 is the enlarged view at A place in Fig. 1.
In figure: 1-flange plate; 2-bolt; 3-bores neck; 4-cylinder; 5-upper flange; 6-Expanded graphite metal wave tooth composite pad; 7-lower flange; The rectangular serrate slot of 8-upper flange sealing surface; The upper surface of 9-Expanded graphite metal wave tooth composite pad; 10-metal frame; The lower surface of 11-Expanded graphite metal wave tooth composite pad; The rectangular serrate slot of 12-lower flange sealing surface.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of rectangular toe joint touch flange, comprise upper flange 5, lower flange 7 and wave tooth spacer, the profile of tooth of described wave tooth spacer is rectangular, the sealing surface of described upper flange 5 and lower flange 7 is respectively equipped with the rectangular serrate slot matched with the upper surface of wave tooth spacer and lower surface, the sealing surface of described upper flange 5 and lower flange 7 does not arrange boss.The utility model does not arrange boss, and part eliminates moment of flexure between attachment hole and pad force position, and part eliminates high temperature and high pressure environment lower flange 7 and coils 1 deflection produced because of moment of flexure and creep; The rectangular tooth on the upper and lower surface of wave tooth spacer coordinates with the rectangular serrate slot of upper and lower flange 7 respectively, pad not easily offsets, adopt the seal form of rectangular toe joint touch, compared to common flange, increase effective sealing area, reduce the stress level between flange facing and gasket surface, enhance sealing effect.
Multiple backlash of wave tooth spacer define multi-stage sealed, form a kind of seal form of similar labyrinth seal, can as much as possible by the kinetic energy of interior media, potential energy is heat energy, reduce the pressure energy of interior media, slow down and even stop a leak, as depicted in figs. 1 and 2, in the present embodiment, described wave tooth spacer is Expanded graphite metal wave tooth composite pad 6, the main body of pad is metal frame 10, the upper surface of metal frame 10 and lower surface are equipped with Expanded graphite layer, Expanded graphite has very high adsorption force (can adsorb oils, organic molecule etc.) favorable sealing property.
As depicted in figs. 1 and 2, in the present embodiment, radial deflection is there is between the rectangular tooth on the upper and lower surface of described Expanded graphite metal wave tooth composite pad 6, side-play amount is half tooth distance, there is radial deflection and make Expanded graphite metal wave tooth composite pad 6 have better compression recovery performance between the rectangular tooth on the upper and lower surface of Expanded graphite metal wave tooth composite pad 6.
As shown in Figure 1, in the present embodiment, described upper flange 5 and lower flange 7 include the flange plate 1, cone neck 3 and the cylinder 4 that are connected successively, and described flange plate 1, cone neck 3 and cylinder 4 are as a whole.Cylinder 4(and birdsmouth) as a whole with flange plate 1, avoid because butt welding weld bond defect causes leakage, structure is simple, easy to use; Cone neck 3 can increase the bearing capacity to moment of flexure, improves the moment of flexure ability to bear of Flange joint.The flange plate 1 of described upper flange 5 and lower flange 7 is equipped with bolt 2 hole, upper flange 5 and lower flange 7 are connected and fixed by bolt 2.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (5)
1. a rectangular toe joint touch flange, it is characterized in that: comprise upper flange, lower flange and wave tooth spacer, the profile of tooth of described wave tooth spacer is rectangular, the sealing surface of described upper flange and lower flange is respectively equipped with the rectangular serrate slot matched with the upper surface of wave tooth spacer and lower surface, the sealing surface of described upper flange and lower flange does not arrange boss.
2. a kind of rectangular toe joint touch flange as claimed in claim 1, it is characterized in that: described wave tooth spacer is Expanded graphite metal wave tooth composite pad, the main body of pad is metal frame, and the upper surface of metal frame and lower surface are equipped with Expanded graphite layer.
3. a kind of rectangular toe joint touch flange as claimed in claim 1, it is characterized in that: there is radial deflection between the rectangular tooth on the upper and lower surface of described wave tooth spacer, side-play amount is half tooth distance.
4. a kind of rectangular toe joint touch flange as claimed in claim 1, is characterized in that: described upper flange and lower flange include the flange plate, cone neck and the cylinder that are connected successively, and described flange plate, cone neck and cylinder are as a whole.
5. a kind of rectangular toe joint touch flange as claimed in claim 1, it is characterized in that: the flange plate of described upper flange and lower flange is equipped with bolt hole, upper flange and lower flange are bolted fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520231634.8U CN204628874U (en) | 2015-04-17 | 2015-04-17 | A kind of rectangular toe joint touch flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520231634.8U CN204628874U (en) | 2015-04-17 | 2015-04-17 | A kind of rectangular toe joint touch flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628874U true CN204628874U (en) | 2015-09-09 |
Family
ID=54047902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520231634.8U Expired - Fee Related CN204628874U (en) | 2015-04-17 | 2015-04-17 | A kind of rectangular toe joint touch flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628874U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461557A (en) * | 2017-08-11 | 2017-12-12 | 宁波天生密封件有限公司 | sealing and connecting device |
| CN109603503A (en) * | 2019-01-28 | 2019-04-12 | 中建材环保研究院（江苏）有限公司 | A kind of high speed rotation atomizer with vibration protection function |
| CN113864551A (en) * | 2021-10-25 | 2021-12-31 | 沪东重机有限公司 | Connecting structure for connecting pipelines with different pipe diameters |
-
2015
- 2015-04-17 CN CN201520231634.8U patent/CN204628874U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461557A (en) * | 2017-08-11 | 2017-12-12 | 宁波天生密封件有限公司 | sealing and connecting device |
| CN109603503A (en) * | 2019-01-28 | 2019-04-12 | 中建材环保研究院（江苏）有限公司 | A kind of high speed rotation atomizer with vibration protection function |
| CN109603503B (en) * | 2019-01-28 | 2024-06-04 | 中建材环保研究院（江苏）有限公司 | High-speed rotary atomizer with vibration protection function |
| CN113864551A (en) * | 2021-10-25 | 2021-12-31 | 沪东重机有限公司 | Connecting structure for connecting pipelines with different pipe diameters |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20180417 |