CN204628872U - A kind of stepped tooth contact flange - Google Patents
A kind of stepped tooth contact flange Download PDFInfo
- Publication number
- CN204628872U CN204628872U CN201520231607.0U CN201520231607U CN204628872U CN 204628872 U CN204628872 U CN 204628872U CN 201520231607 U CN201520231607 U CN 201520231607U CN 204628872 U CN204628872 U CN 204628872U
- Authority
- CN
- China
- Prior art keywords
- flange
- tooth
- spacer
- stepped
- wave
- 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
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a kind of stepped tooth contact flange, comprise upper flange, lower flange and wave tooth spacer, the profile of tooth of described wave tooth spacer is trapezoidal, the sealing surface of described upper flange and lower flange is respectively equipped with the trapezoidal toothed groove 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 stepped tooth contact 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 stepped tooth contact 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 stepped tooth contact flange, comprise upper flange, lower flange and wave tooth spacer, the profile of tooth of described wave tooth spacer is trapezoidal, the sealing surface of described upper flange and lower flange is respectively equipped with the trapezoidal toothed groove 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 stepped 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 stepped tooth on the upper and lower surface of wave tooth spacer respectively with the trapezoidal toothed slot fit of upper and lower flange, pad not easily offsets.
2) adopt the seal form of stepped tooth contact-type, 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 stepped 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 trapezoidal toothed groove 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 trapezoidal toothed groove 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 stepped tooth contact flange, comprise upper flange 5, lower flange 7 and wave tooth spacer, the profile of tooth of described wave tooth spacer is trapezoidal, the sealing surface of described upper flange 5 and lower flange 7 is respectively equipped with the trapezoidal toothed groove 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 stepped tooth on the upper and lower surface of wave tooth spacer respectively with the trapezoidal toothed slot fit of upper and lower flange 7, pad not easily offsets, adopt the seal form of stepped tooth contact-type, 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 stepped 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 stepped 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 stepped tooth contact 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 trapezoidal, the sealing surface of described upper flange and lower flange is respectively equipped with the trapezoidal toothed groove 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 stepped tooth contact flange as claimed in claim 1, is characterized in that: 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.
3. a kind of stepped tooth contact flange as claimed in claim 1, it is characterized in that: there is radial deflection between the stepped tooth on the upper and lower surface of described wave tooth spacer, side-play amount is half tooth distance.
4. a kind of stepped tooth contact 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 stepped tooth contact 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 |
|---|---|---|---|
| CN201520231607.0U CN204628872U (en) | 2015-04-17 | 2015-04-17 | A kind of stepped tooth contact flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520231607.0U CN204628872U (en) | 2015-04-17 | 2015-04-17 | A kind of stepped tooth contact flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628872U true CN204628872U (en) | 2015-09-09 |
Family
ID=54047900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520231607.0U Expired - Fee Related CN204628872U (en) | 2015-04-17 | 2015-04-17 | A kind of stepped tooth contact flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628872U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247049A (en) * | 2016-07-29 | 2016-12-21 | 武汉工程大学 | A kind of concave-convex type soft graphite metal wave tooth Composition spacer |
| CN107906200A (en) * | 2017-10-17 | 2018-04-13 | 株洲时代新材料科技股份有限公司 | Seal and liquid compound spring for liquid compound spring |
| CN111536338A (en) * | 2020-05-12 | 2020-08-14 | 海盐县法兰厂 | Corrosion-resistant flat welding flange and processing method thereof |
| CN114542424A (en) * | 2020-11-25 | 2022-05-27 | 安徽威灵汽车部件有限公司 | Pipeline sealing structure, compressor, air conditioning equipment and vehicle |
-
2015
- 2015-04-17 CN CN201520231607.0U patent/CN204628872U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247049A (en) * | 2016-07-29 | 2016-12-21 | 武汉工程大学 | A kind of concave-convex type soft graphite metal wave tooth Composition spacer |
| CN107906200A (en) * | 2017-10-17 | 2018-04-13 | 株洲时代新材料科技股份有限公司 | Seal and liquid compound spring for liquid compound spring |
| CN111536338A (en) * | 2020-05-12 | 2020-08-14 | 海盐县法兰厂 | Corrosion-resistant flat welding flange and processing method thereof |
| CN114542424A (en) * | 2020-11-25 | 2022-05-27 | 安徽威灵汽车部件有限公司 | Pipeline sealing structure, compressor, air conditioning equipment and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204628872U (en) | A kind of stepped tooth contact flange | |
| CN204628873U (en) | A kind of lance tooth contact flange | |
| CN204664681U (en) | A kind of high-temperature flange pad profile of tooth contact linkage structure | |
| CN204420391U (en) | A kind of flange sealing structure based on wave tooth composite gasket | |
| CN204459547U (en) | A kind of pipeline sealing device | |
| CN204628874U (en) | A kind of rectangular toe joint touch flange | |
| CN205639961U (en) | Flexible graphite metal ripples tooth composite pads piece | |
| CN204420390U (en) | A kind of novel flange sealing configuration | |
| CN103712005A (en) | Dual-seal flange plate | |
| CN202867836U (en) | Spring composite sealing gasket | |
| CN204420392U (en) | Flange connecting sealing device | |
| CN204284478U (en) | LNG heavy caliber cast steel stop valve | |
| CN204647375U (en) | Nuclear power island heart high pressure adds the hard self-sealing gate valve of pipe arrangement pressure-relief type | |
| CN203614767U (en) | Corrugated pipe forged steel valve | |
| CN201925513U (en) | Top mounted ball valve of inner-propped compound seal forged steel | |
| CN201059400Y (en) | Sealing flange | |
| CN202252179U (en) | Stop check valve for high-pressure bellows | |
| CN202914933U (en) | Double sealing flange | |
| CN204493777U (en) | Corrosion preventive ball-valve stuffing box structure | |
| CN204358089U (en) | A kind of self tightening different angle flank of tooth bipyramid ring pad | |
| CN204878717U (en) | Flange structure | |
| CN201354869Y (en) | rubber-lining check valve on sealing surface | |
| CN202047905U (en) | Hole sealed machine body water cavity | |
| CN203322367U (en) | Compound sealed direct all-welded emptying root ball valve | |
| CN201425050Y (en) | Combined sealed screw |
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 |
Granted publication date: 20150909 Termination date: 20180417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |