CN113154150A - Special device for adjusting splayed opening of underwater expansion bent flange - Google Patents
Special device for adjusting splayed opening of underwater expansion bent flange Download PDFInfo
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- CN113154150A CN113154150A CN202110146113.2A CN202110146113A CN113154150A CN 113154150 A CN113154150 A CN 113154150A CN 202110146113 A CN202110146113 A CN 202110146113A CN 113154150 A CN113154150 A CN 113154150A
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- flange
- bolt
- handle
- nut
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/003—Auxiliary devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a special device for adjusting a splayed opening of an underwater expansion bent flange, which comprises a fastening baffle plate, a stress application base plate, a stress application nut and a tension bolt, wherein the tension bolt is arranged at the gap between two flanges, one end of the stress application bolt penetrates through a bolt hole of one of the flanges and is detachably and fixedly connected with the fastening baffle plate, the stress application nut is positioned on one side of one flange, which is far away from the fastening baffle plate, and is in threaded connection with the tension bolt, and the stress application base plate is arranged between one flange and the stress application nut. The invention can solve the problems that the bolt is difficult to put on the two flanges and the bolt rotates along with the wrench.
Description
Technical Field
The invention relates to a special device for adjusting a splayed opening of an underwater expansion bent flange.
Background
The expansion bend flange is installed in a butt joint mode underwater, the existing Bohai Bay generally adopts an installation technology that a ship crane hoists the expansion bend to carry out butt joint, the technology can effectively realize quick butt joint of the expansion bend, project cost is greatly saved, but the technology easily causes the flange surface to be unparallel in the butt joint process, namely the condition of a splayed opening. The traditional 'splayed mouth' method comprises the following steps: (1) for a slight splayed opening, bolts need to be threaded at the positions with larger openings of the two flange surfaces, a ratchet wrench or a hydraulic wrench is used for applying force to the bolts, and the flange surfaces are extruded by nuts of the bolts to reduce the gap between the two flange surfaces, so that the aim of eliminating the splayed opening is fulfilled. In the method, the bolt holes of the two flanges are not coaxial due to the splayed openings, so that the two flanges are difficult to put on the flange, and meanwhile, the bolts are easy to rotate along with the rotation of a stress application tool when stress is applied, so that the adjustment efficiency of the splayed openings is low, and the flange surface is easy to damage due to the small contact surface between the bolts and the flange surface. (2) For the situation that two flange surfaces have larger splayed openings and are difficult to adjust, the threaded bolts need to be detached, and the bolts are butted again by matching with a crane, so that the construction efficiency is low.
Disclosure of Invention
The invention provides a special device for adjusting a splayed opening of an underwater expansion bent flange, which solves the problems that two flanges are difficult to put on a bolt and the bolt rotates along with a wrench.
In order to solve the technical problem, the invention provides a special device for adjusting a splayed opening of an underwater expansion bent flange, which comprises a fastening baffle plate, a stress application base plate, a stress application nut and a tension bolt, wherein the tension bolt is arranged at the gap between the two flanges, one end of the stress application bolt penetrates through a bolt hole of one of the flanges and is detachably and fixedly connected with the fastening baffle plate, the stress application nut is positioned on one side of one flange, which is far away from the fastening baffle plate, and is in threaded connection with the tension bolt, and the stress application base plate is arranged between one flange and the stress application nut.
Furthermore, the fastening baffle comprises a baffle main body, a locking nut, a first handle and a first rope threading hole, the locking nut is fixed on the baffle main body, one end of the first handle is fixed on the baffle main body, the other end of the first handle is provided with the first rope threading hole, and the locking nut is in threaded connection with the tension bolt to realize detachable fixed connection of the locking nut and the tension bolt.
Furthermore, the stressing base plate comprises a base plate main body, a second handle and a second rope threading hole, a through hole is formed in the base plate main body, the tension bolt penetrates through the through hole, one end of the second handle is connected with the base plate main body, and the second rope threading hole is formed in the other end of the second handle.
The invention has the technical effects that:
(1) the invention can realize the quick connection of the stressing bolt and the fastening baffle plate and solve the problem that the stressing bolt with a splayed opening is difficult to put on.
(2) The invention solves the problem that the bolt rotates along with the wrench in the traditional method by utilizing the threaded connection of the locking nut and the stressing bolt on the fastening baffle and the tension bolt.
(3) Compared with the contact area of a stress application nut and a flange in the traditional method, the contact area of the fastening baffle plate, the stress application base plate and the flange is much larger, the force can be uniformly transmitted to the two flange surfaces to a greater degree, the splayed opening between the flange surfaces can be effectively adjusted, and the flange surfaces can be prevented from being damaged due to the direct contact of the stress application nut and the flange surfaces in the stress process.
Drawings
Fig. 1 is a front view of a preferred embodiment of the present invention.
Fig. 2 is a front view of a fastening baffle in a preferred embodiment of the present invention.
Fig. 3 is a front view of a thrust plate in a preferred embodiment of the present invention.
Reference numerals: a fastening baffle-1; a tension bolt-2; a stress application base plate-3; a stressing bolt-4; a first handle-1.1; a first stringing hole-1.2; baffle body-1.3; 1.4 of a locking nut; a second handle-3.1; a second stringing hole-3.2; backing plate main body-3.3; through hole-3.4.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
The embodiment of the invention discloses a special device for adjusting a splayed opening of an underwater expansion bent flange, which comprises a fastening baffle plate 1, a tension bolt 2, a stress application base plate 3 and a stress application nut, as shown in figures 1 to 3. The diver inserts the fastening baffle plate 1 into the gap between two flange surfaces with the splayed opening, and the tension bolt 2 is inserted into the gap from one flange bolt hole and fastened with the locking nut 1.4 of the fastening baffle plate 1.
In this embodiment, the fastening baffle 1 includes a first handle 1.1, a first rope threading hole 1.2, a baffle main body 1.3 and a lock nut 1.4. The locking nut 1.4 is fixed in the baffle main part 1.3, and the one end of first in command 1.1 is fixed in the baffle main part 1.3, is equipped with first stringing hole 1.2 on the other end, and locking nut 1.4 and 2 threaded connection of lag bolt are in order to realize detachable fixed connection between them. The fastening baffle plate 1 is a DH36 type steel plate with the thickness of 10mm, the thickness of the locking nut 1.4 is 10mm, the locking nut 1.4 is in welded connection with the fastening circular baffle plate, the locking nut 1.4 is used for locking the stressing bolt 4, and the bolt is prevented from continuing to feed and rotate through the fastening circular baffle plate. Meanwhile, a first handle 1.1 and a first rope threading hole 1.2 are arranged for the underwater diver to operate and carry conveniently.
In this embodiment, afterburning backing plate 3, including backing plate main part 3.3, second handle 3.1 and second bolt hole 3.2, be equipped with through-hole 3.4 on the backing plate main part 3.3, pulling force bolt 2 passes through-hole 3.4, and the one end and the backing plate main part 3.3 of second handle 3.1 are connected, and the other end is equipped with second bolt hole 3.2. The stressing pad plate 3 is a DH36 type steel plate with a thickness of 10 mm. The stress application baffle plate penetrates through the tension bolt 2 through the through hole 3.4 and is used for increasing the acting area of the stress application nut acting on the flange. Meanwhile, a second handle 3.1 and a second bolt hole 3.2 are arranged for the underwater diver to operate and carry conveniently.
When the splayed opening between the two flanges is adjusted, the invention is carried out by the following steps: when the expansion bent flange is butted and has a splayed opening, the fastening baffle plate 1 is inserted into the gap between two flange surfaces with the splayed opening, and the tension bolt 2 is inserted from one flange bolt hole and fastened with the locking nut 1.4 of the fastening baffle plate 1; a stressing cushion plate 3 is penetrated on a stressing bolt 4 on the outer side surface of one flange, and then a stressing nut is installed; a diver fixes the fastening baffle 1 between the two flanges by using a tool, the other side fastens the stressing nut by using a wrench, the stressing nut is stressed and fed along the thread of the tension bolt 2 to extrude the stressing base plate 3, and the stressing base plate 3 acts on the flanges again to make the two flange surfaces approach, thereby realizing the adjustment of the splayed opening.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (3)
1. The utility model provides a isolated plant that is used for bent flange "splayed mouth" of expansion under water to adjust which characterized in that: the flange reinforcing device comprises a fastening baffle plate, a reinforcing base plate, a reinforcing nut and a tension bolt, wherein the tension bolt is arranged at the gap between two flanges, one end of the reinforcing bolt penetrates through a bolt hole of one flange and is detachably and fixedly connected with the fastening baffle plate, the reinforcing nut is positioned on one side, far away from the fastening baffle plate, of one flange and is in threaded connection with the tension bolt, and the reinforcing base plate is arranged between one flange and the reinforcing nut.
2. The special device for adjusting the splayed opening of the underwater expansion bent flange according to claim 1, characterized in that: the fastening baffle comprises a baffle main body, a locking nut, a first handle and a first rope threading hole, the locking nut is fixed on the baffle main body, one end of the first handle is fixed on the baffle main body, the other end of the first handle is provided with the first rope threading hole, and the locking nut is in threaded connection with the tension bolt to realize detachable fixed connection of the locking nut and the tension bolt.
3. The special device for adjusting the splayed opening of the underwater expansion bent flange according to claim 1, characterized in that: the stressing backing plate comprises a backing plate main body, a second handle and a second rope threading hole, the backing plate main body is provided with a through hole, the tension bolt penetrates through the through hole, one end of the second handle is connected with the backing plate main body, and the other end of the second handle is provided with the second rope threading hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110146113.2A CN113154150B (en) | 2021-02-02 | 2021-02-02 | Special device for adjusting splayed opening of underwater expansion bent flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110146113.2A CN113154150B (en) | 2021-02-02 | 2021-02-02 | Special device for adjusting splayed opening of underwater expansion bent flange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113154150A true CN113154150A (en) | 2021-07-23 |
| CN113154150B CN113154150B (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110146113.2A Active CN113154150B (en) | 2021-02-02 | 2021-02-02 | Special device for adjusting splayed opening of underwater expansion bent flange |
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| CN (1) | CN113154150B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000120953A (en) * | 1998-10-20 | 2000-04-28 | Kubota Corp | Packing for flange coupling |
| CN101598246A (en) * | 2008-06-06 | 2009-12-09 | 中国海洋石油总公司 | The method of pipeline under the ocean flange underwater mating |
| CN204062251U (en) * | 2014-09-05 | 2014-12-31 | 中交天津航道局有限公司 | The linkage structure of rigid pipe and transparent pipe |
| CN204976483U (en) * | 2015-08-03 | 2016-01-20 | 深圳海油工程水下技术有限公司 | Flange straining device |
| CN106402540A (en) * | 2016-11-25 | 2017-02-15 | 中国海洋石油总公司 | Mounting device of underwater expansion bent flange gasket |
| CN110722500A (en) * | 2019-10-18 | 2020-01-24 | 中船澄西船舶修造有限公司 | Disassembly and assembly tool and disassembly and assembly method for flange gasket of ship pipe system butt joint pipe |
-
2021
- 2021-02-02 CN CN202110146113.2A patent/CN113154150B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000120953A (en) * | 1998-10-20 | 2000-04-28 | Kubota Corp | Packing for flange coupling |
| CN101598246A (en) * | 2008-06-06 | 2009-12-09 | 中国海洋石油总公司 | The method of pipeline under the ocean flange underwater mating |
| CN204062251U (en) * | 2014-09-05 | 2014-12-31 | 中交天津航道局有限公司 | The linkage structure of rigid pipe and transparent pipe |
| CN204976483U (en) * | 2015-08-03 | 2016-01-20 | 深圳海油工程水下技术有限公司 | Flange straining device |
| CN106402540A (en) * | 2016-11-25 | 2017-02-15 | 中国海洋石油总公司 | Mounting device of underwater expansion bent flange gasket |
| CN110722500A (en) * | 2019-10-18 | 2020-01-24 | 中船澄西船舶修造有限公司 | Disassembly and assembly tool and disassembly and assembly method for flange gasket of ship pipe system butt joint pipe |
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| Publication number | Publication date |
|---|---|
| CN113154150B (en) | 2022-12-23 |
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Effective date of registration: 20230531 Address after: 100010 No. 25 North Main Street, Dongcheng District, Beijing, Chaoyangmen Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Patentee after: OFFSHORE OIL ENGINEERING Co.,Ltd. Patentee after: COOEC SUBSEA TECHNOLOGY Co.,Ltd. Address before: 100010 No. 25 North Main Street, Dongcheng District, Beijing, Chaoyangmen Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Patentee before: OFFSHORE OIL ENGINEERING Co.,Ltd. |
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Address after: 100010 No. 25 North Main Street, Dongcheng District, Beijing, Chaoyangmen Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Patentee after: OFFSHORE OIL ENGINEERING Co.,Ltd. Patentee after: CNOOC Shenzhen Ocean Engineering Technology Service Co.,Ltd. Address before: 100010 No. 25 North Main Street, Dongcheng District, Beijing, Chaoyangmen Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Patentee before: OFFSHORE OIL ENGINEERING Co.,Ltd. Patentee before: COOEC SUBSEA TECHNOLOGY Co.,Ltd. |