CN203322619U - Pipe flange connecting piece - Google Patents
Pipe flange connecting piece Download PDFInfo
- Publication number
- CN203322619U CN203322619U CN201320268002XU CN201320268002U CN203322619U CN 203322619 U CN203322619 U CN 203322619U CN 201320268002X U CN201320268002X U CN 201320268002XU CN 201320268002 U CN201320268002 U CN 201320268002U CN 203322619 U CN203322619 U CN 203322619U
- Authority
- CN
- China
- Prior art keywords
- flange
- electric heating
- positioning ring
- heating melting
- electric hot
- 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.)
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Links
- 238000002844 melting Methods 0.000 claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 238000005485 electric heating Methods 0.000 claims description 40
- 230000000295 complement Effects 0.000 claims description 5
- 210000003298 Dental Enamel Anatomy 0.000 claims description 4
- 210000004243 Sweat Anatomy 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract 5
- 150000001875 compounds Chemical class 0.000 abstract 3
- 239000000203 mixture Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000001503 Joints Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model discloses a pipe flange connecting piece, and particularly relates to the flange connecting piece used for a medium pressure level steel wire gauze framework PE plastic compound pipeline system. The pipe flange connecting piece which can prevent sealing failure of the medium pressure level steel wire gauze framework PE plastic compound pipeline system comprises a flange pipe fitting, a connecting bolt, a sealing ring and an electric hot melting flange. The electric hot melting flange and a steel wire gauze framework PE plastic compound pipeline are welded together through an electric hot melting method. The sealing ring is placed in a step arranged on the end face of the electric hot melting flange. The connecting bolt is used for enabling the electric hot melting flange and the flange pipe fitting to be fixedly connected. A steel positioning ring is additionally arranged, the steel positioning ring is arranged on a joint part of the electric hot melting flange in a sleeved mode, and the inner diameter of the steel positioning ring is matched with the outer diameter of the joint part of the electric hot melting flange. Due to the fact that the steel positioning ring is adopted, radial deformation of the electric hot melting flange is limited, and sealing failure caused by looseness of the sealing ring is avoided.
Description
Technical field
The utility model relates to a kind of piping flange link, particularly a kind of flange connector of the PE of the steel wire mesh frame for medium pressure grade plastic composition pipeline system.
Background technique
In the prior art, the flange connector connected for steel wire network framework PE plastic composition pipeline is comprised of flanged fitting, threaded connector, seal ring, steel flanges, electric heating melting flange and plastic tube, and wherein the inwall of electric heating melting flange is complementary with needing the plastic pipe outer wall be connected.Electric heating melting flange and plastic pipe hot-melt are welded as a whole, seal ring is placed on to the electric heating melting flange end face, with threaded connector, steel flanges, electric heating melting flange, flanged fitting are fixedly connected with.
Because the PE plastics have creep properties, under the long term of hydraulic stress, radial deformation can occur in the electric heating melting flange be welded as a whole with plastic tube, and the seal ring that makes to be positioned at the electric heating melting flange end face is loose, thereby make seal failure and occur leaking, causing pipe-line system normally not move.
The model utility content
Technical problem to be solved in the utility model is to provide and a kind ofly can prevents that medium pressure grade steel wire mesh frame PE multiple tube system from making the piping flange link of seal failure because of the electric heating melting flange radial deformation.
The piping flange link adopted for solving the problems of the technologies described above the utility model, comprise flanged fitting, threaded connector, seal ring, plastic tube, electric heating melting flange, described electric heating melting flange also comprises the joint part that is positioned at its front end, described electric heating melting flange sweat soldering is on plastic tube, described seal ring is positioned at the step that the electric heating melting flange end face arranges, electric heating melting flange and flanged fitting are threaded connection part and interconnect, it is characterized in that: also comprise positioning ring, this positioning ring is set on the joint part of electric heating melting flange, the external diameter of the internal diameter of this positioning ring and the joint part of electric heating melting flange is complementary.
Further, also comprise steel flanges, described threaded connector is connected with steel flanges and by the three through flanged fitting, electric heating melting flange successively.
Further, on described positioning ring, be provided with bolt slot, the distributing position of bolt slot, size and quantity are consistent with distributing position, size and the quantity of bolt hole on described flanged fitting port.
Further, be provided with the enamel anticorrosion layer on the internal surface of described flanged fitting.
Further, described positioning ring and flanged fitting are an overall structure.
Further, described positioning ring and flanged fitting are Split type structure.
The beneficial effects of the utility model are: owing on the external diameter at the electric heating melting flange joint, positioning ring being installed, thereby limited the radially deformation that the electric heating melting flange that is welded as a whole with plastic tube occurs because of creep under the hydraulic stress long term, avoided, because being arranged on the loose seal failure caused of seal ring in electric heating melting flange end face step, having guaranteed the safe operation of the steel wire mesh frame PE plastic composition pipeline system of middle pressure grade.Consistent with the bolt hole on flanged fitting port and steel flanges owing to being provided with bolt slot and its distributing position, size and quantity on the steel positioning ring, thus connection can be installed easily.The enamel anticorrosion layer arranged on the flanged fitting internal surface, can prevent pipe fitting corrosion phenomenon.Positioning ring and flanged fitting both can be designed to an overall structure, can make positioning ring become separately a part by the design mix body structure again.Overall structure can make construction and installation more convenient owing to having reduced required number of parts, and Split type structure is convenient to production and processing, can reduce costs.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the plan view of positioning ring;
Fig. 3 is the sectional view of the A-A line of Fig. 2;
Component, position and numbering in figure: flanged fitting 1, threaded connector 2, seal ring 3, electric heating melting flange joint part 4, positioning ring 5, steel flanges 6, electric heating melting flange 7, plastic tube 8, bolt slot 9.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, piping flange link of the present utility model is comprised of flanged fitting 1, threaded connector 2, seal ring 3, electric heating melting flange 7, positioning ring 5.The inwall of electric heating melting flange 7 is complementary with the outer wall of the plastic tube 8 that needs to be connected, and the external diameter of the joint part 4 of the internal diameter of positioning ring 5 and electric heating melting flange 7 is complementary.During installation, first electric heating melting flange 7 and plastic tube 8 sweat solderings are integral, then in the step that seal ring 3 is placed on to electric heating melting flange 7 end faces settings.Positioning ring 5 is inserted in towards the plastic tube direction from joint part, positioning ring 5 inwalls are contacted with the outer wall of the joint part 4 of electric heating melting flange 7, and fit with the end face of flanged fitting 1, so that positioning ring 5 is positioned at the joint part 4 of yielding electric heating melting flange 7 just, like this when electric heating melting flange 7 produces Radial Deformation under the hydraulic stress long term, the positioning ring 5 of setting up can limit its distortion, to prevent because being placed on the loose seal failure caused of seal ring 3 in electric heating melting flange 7 end face steps.Finally with threaded connector 2, steel flanges 6, electric heating melting flange 7, flanged fitting 1 are coupled together, make flanged fitting 1 and surface of contact laminating the press seal circle of electric heating melting flange 7 form seal for pipe joints.In order to obtain better anti-deforming effect, positioning ring 5 can adopt steel material.
Install and can on described positioning ring 5, bolt slot 9 be set for convenient construction as depicted in figs. 1 and 2, and the distributing position of bolt slot 9, size and quantity are consistent with distributing position, size and the quantity of bolt hole on described flanged fitting 1 port, so that the threaded connector of adpting flange pipe fitting 1 and steel flanges 6 passes through from steel positioning ring 5.
Because flanged fitting 1 internal surface contacts with liquid for a long time, for preventing it, be subject to corrosion the enamel anticorrosion layer to be set at described flanged fitting 1 internal surface.
Also positioning ring 5 and flanged fitting 1 can be designed to an overall structure, can reduce like this number of parts and make to install faster, convenient.
Also positioning ring 5 and flanged fitting 1 can be designed to Split type structure, make positioning ring 5 become separately a part, like this can so that production and processing reduce costs.
Claims (6)
1. piping flange link, comprise flanged fitting (1), threaded connector (2), seal ring (3), plastic tube (8), electric heating melting flange (7), described electric heating melting flange (7) also comprises the joint part (4) that is positioned at its front end, described electric heating melting flange (7) sweat soldering is on plastic tube (8), described seal ring (3) is positioned at the step that electric heating melting flange (7) end face arranges, electric heating melting flange (7) and flanged fitting (1) are threaded connection part (2) and interconnect, it is characterized in that: also comprise positioning ring (5), this positioning ring (5) is set on the joint part (4) of electric heating melting flange (7), the external diameter of the joint part (4) of the internal diameter of this positioning ring (5) and electric heating melting flange (7) is complementary.
2. piping flange link as claimed in claim 1 is characterized in that: also comprise steel flanges (6), described threaded connector (2) successively through flanged fitting (1), electric heating melting flange (7) is with steel flanges (6) and the three is connected.
3. piping flange link as claimed in claim 1, it is characterized in that: be provided with bolt slot (9) on described positioning ring (5), distributing position, size and the quantity of bolt slot (9) is consistent with distributing position, size and the quantity of bolt hole on described flanged fitting (1) port.
4. piping flange link as claimed in claim 1, is characterized in that: on the internal surface of described flanged fitting (1), be provided with the enamel anticorrosion layer.
5. the described piping flange link of claim as arbitrary as claim 1 to 4 is characterized in that: described positioning ring (5) is an overall structure with flanged fitting (1).
6. the described piping flange link of claim as arbitrary as claim 1 to 4 is characterized in that: described positioning ring (5) is Split type structure with flanged fitting (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320268002XU CN203322619U (en) | 2013-05-16 | 2013-05-16 | Pipe flange connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320268002XU CN203322619U (en) | 2013-05-16 | 2013-05-16 | Pipe flange connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322619U true CN203322619U (en) | 2013-12-04 |
Family
ID=49661970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320268002XU Active CN203322619U (en) | 2013-05-16 | 2013-05-16 | Pipe flange connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360387A (en) * | 2019-07-19 | 2019-10-22 | 上海英泰塑胶股份有限公司 | A kind of high pressure resistant pipe fitting of housing steel lining modeling anti-corrosion and production method |
-
2013
- 2013-05-16 CN CN201320268002XU patent/CN203322619U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360387A (en) * | 2019-07-19 | 2019-10-22 | 上海英泰塑胶股份有限公司 | A kind of high pressure resistant pipe fitting of housing steel lining modeling anti-corrosion and production method |
| CN110360387B (en) * | 2019-07-19 | 2021-05-28 | 上海英泰塑胶股份有限公司 | Outer-sleeved steel inner-plastic-lined anti-corrosion high-pressure-resistant pipe fitting and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170707 Address after: Jinyuan Industrial Avenue, Dayi County town of 611330 in Sichuan province Chengdu City 2 No. 1 Patentee after: Chengdu root Pipeline Technology Co., Ltd. Address before: Jinyuan Industrial Avenue, Dayi County town of 611330 in Sichuan province Chengdu city two No. 1 Patentee before: Chengdu Beigen Pipeline Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 611330 No. 1, Section 2, Industrial Avenue, Jinyuan Town, Dayi County, Chengdu City, Sichuan Province Patentee after: Chengdu Common Steel and Plastic Products Co., Ltd. Address before: 611330 No. 1, Section 2, Industrial Avenue, Jinyuan Town, Dayi County, Chengdu City, Sichuan Province Patentee before: Chengdu root Pipeline Technology Co., Ltd. |