CN104776278A - Pipe section type steel pipe joint and underwater mounting construction method - Google Patents
Pipe section type steel pipe joint and underwater mounting construction method Download PDFInfo
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- CN104776278A CN104776278A CN201510173397.9A CN201510173397A CN104776278A CN 104776278 A CN104776278 A CN 104776278A CN 201510173397 A CN201510173397 A CN 201510173397A CN 104776278 A CN104776278 A CN 104776278A
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- pipe fitting
- joint
- steel pipe
- welded
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a pipe section type steel pipe joint, which is characterized by consisting of an A-type pipe fitting and a B-type pipe fitting, wherein the two ends of an upper body of the A-type pipe fitting form semi-arc-shaped connecting flange ends; a lifting ring is also welded on the upper body; the two ends of a lower body of the A-type pipe fitting of the pipe section type steel pipe joint are used for being connected in a butting manner with a steel pipe to be connected; the inner side of the lower body of the A-type pipe fitting is provided with a liner plate; a connecting end is formed on the upper edge of the lower body of the A-type pipe fitting; the B-type pipe fitting is integrally of a semi-arc-shaped structure; one end of the B-type pipe fitting is a connecting flange end; a lifting ring is welded on the B-type pipe fitting; a connecting end is welded on the side edge of the semi-arc-shaped edge of the B-type pipe fitting. By using the pipe section type steel pipe joint, problems existing in an existing universal joint are solved, and through improvement, the pipe section type steel pipe joint and an underwater mounting construction method are provided. The joint is processed on the spot according to a needed size, is light in weight, low in manufacturing cost, quick in construction speed and reliable in quality; at the aspect of the manufacturing cost, the manufacturing cost of manufacturing the pipe section type steel pipe joint on the spot is approximately 30% of the manufacturing cost of a nodular cast iron joint customized by a manufacturer; a complicated underwater welding process is avoided; the whole mounting procedure is simple and convenient.
Description
Technical field
The present invention relates to fastener for connection field, is specifically a kind of pipeline section type steel pipe joint and construction method of installation under water.
Background technique
The forms such as the Placement that current building plumbing system construction feedwater piping engineering is commonly used is threaded, groove connection, hot-melt adhesive paste, the connection of card pressure, the Placement that drainage pipeline project is conventional has the modes such as bonding connection, clip connected and mechanical flexibility connection.For getting in common municipal engineering, drainage works, not only to ensure that submarine pipeline is connected with land pipelines and complete within the predetermined time, and in work progress, carry out submarine pipeline connection construction be absolutely necessary.Existing universal joint size is fixed dimension, the requirement of duct length change can not be met, can only customize, thus cause the customization cycle longer, the requirement of construction or repairing can not be met, and the trimmed size that present manufacturer produces is generally DN100mm ~ 400mm, specification can not meet large diameter requirement, and finished product material is generally adopt spheroidal graphite cast iron, uses heavier, and frangible, also cause difficulty being installed under water.
Summary of the invention
The object of the invention is to be fixed dimension to solve existing universal joint size, the requirement of duct length change can not be met, can only customize, thus cause the customization cycle longer, the requirement of construction or repairing can not be met, and the trimmed size that present manufacturer produces is generally DN100mm ~ 400mm, specification can not meet large diameter requirement, and finished product material is generally adopt spheroidal graphite cast iron, uses heavier, and frangible, also cause the problems such as difficulty are installed under water; A kind of pipeline section type steel pipe joint and construction method of installation is under water provided at this by improving.Joint size field processing on demand, lightweight, cost is low, construction speed is fast, reliable in quality; In cost: field fabrication pipeline section type steel pipe joint cost is about about 30% of producer's customization spheroidal graphite cast iron joint; Avoid numerous and diverse Underwater Welding technique, whole installation process is easy.
The present invention is achieved in that a kind of pipeline section type steel pipe joint of structure, it is characterized in that: described pipeline section type steel pipe joint is made up of A type and Type B pipe fitting;
The upper body of adpting flange end 3,4, the A type pipe fitting of the two ends formation semicircular arc of the upper body of described A type pipe fitting is also welded with suspension ring 5, and the two ends of the lower body of its A type pipe fitting are used for docking with steel pipe waiting, are provided with liner plate inside it; The upper edge place of its lower body forms connecting end 7;
Type B pipe fitting entirety is semi-circle structure, and one end is adpting flange end 8, it is welded with suspension ring 9, and the edge side edge of its semi-circle is welded with connecting end 10;
The adpting flange end 3,4 of A type pipe fitting is for docking with the adpting flange end of Type B pipe fitting; The connecting end 7 of A type pipe fitting is for docking with the connecting end 10 of Type B pipe fitting; Its Type B arranged at inner side of pipe fitting is provided with liner plate;
Adpting flange end 3,4, adpting flange end 8 corresponding part is welded with I type stiffened plate, liner plate corresponding part is welded with II type stiffened plate.
According to pipeline section type steel pipe joint of the present invention, it is characterized in that: A type and Type B pipe fitting are connected mainly through bolt and rubber water-proof pad.
According to pipeline section type steel pipe joint of the present invention, it is characterized in that: A, Type B pipe fitting liner plate internal diameter are equal to controlled working size with outer diameter of steel pipes waiting, select the steel identical with former design pipe material.
A construction method of installation under water for pipeline section type steel pipe joint, is characterized in that: operate as follows; Land part is conventional foundation trench excavation and pipeline welding connection construction, underwater portion adopts dredger fluting, utilize barge transportation by driving tube coupling and sink, carrying out connection construction under water by pipeline section type steel pipe joint, then building C30 underwater concrete in joint and assure and closed joint gap; Be specially;
Step 1: utilize dredger to carry out underwater excavation tube seat and deepen pipe trench 1.0 ~ 1.5 meters in joint;
Step 2: utilize the first length of tubing (connecting end welds three place's limiting stoppers) of barge transportation by driving and sink in place;
Step 3: utilize barge and cucurbit to hang A type pipe fitting, dirver assists in place;
Step 4: lifting second section pipeline, dirver assists in place;
Step 5: lifting A type pipe fitting and pipeline waiting are adjacent to;
Step 6: location truss is set by relative position on barge, lifting Type B pipe fitting, carries out bolt under water by dirver and connects and fill space with cotton-wool;
Step 7: refill adaptor two ends sand gravel, build underwater concrete encapsulating steel pipe joint, Cast-in-situ Piles in Sand-filling gravel is to original bed line.
The invention has the advantages that: pipeline section type steel pipe joint Applicable scope of the present invention and advantage:
1, Applicable scope: submarine pipeline joint and be inconvenient to the pipe coupling using electric welding.
2, advantage:
(1) avoid numerous and diverse Underwater Welding technique, whole installation process is easy;
(2) positioning ring internal diameter is greater than pipeline 20mm waiting, allows docking pipeline to there is certain misalignment of axe, reduces difficulty of construction;
(3) joint size field processing on demand, lightweight, cost is low, construction speed is fast, reliable in quality.
In speed: field fabrication is only once pressing required size machine shaping to two days, and use can be provided in time, and existing universal joint size is fixed dimension, the requirement of duct length change can not be met, can only customize, thus cause the customization cycle longer, the requirement of construction or repairing can not be met, and the trimmed size that present manufacturer produces is generally DN100mm ~ 400mm, specification can not meet large diameter requirement, and finished product material is generally adopt spheroidal graphite cast iron, uses heavier, and frangible, also cause difficulty being installed under water.
In cost: field fabrication pipeline section type steel pipe joint cost is about about 30% of producer's customization spheroidal graphite cast iron joint.
Accompanying drawing explanation
Fig. 1 is pipeline section type steel pipe joint planimetric map
Fig. 2 is pipeline section type steel pipe joint side elevation view
Fig. 3 is pipeline section type steel pipe joint cut-away view
Fig. 4 is A type pipe fitting elevation
Fig. 5 is A type pipe fitting planimetric map
Fig. 6 is the corresponding schematic diagram of A type inside pipe fitting
Fig. 7 is suspension ring 5 schematic diagram
Fig. 8 is Type B pipe fitting elevation
Fig. 9 is Type B pipe fitting planimetric map
Figure 10 is the corresponding schematic diagram of Type B inside pipe fitting
Figure 11 is suspension ring 9 schematic diagram
Figure 12 is I type stiffened plate schematic diagram
Figure 13 is II type stiffened plate schematic diagram
Figure 14-15 is steel pipe schematic diagram waiting
Figure 16 is standoff features figure in steel pipe waiting
Figure 17 is limiting stopper profile in steel pipe waiting
Figure 18-24 is installation steps schematic diagram
Figure 25 is A detailed drawing in Figure 23 (pipeline bolt connection diagram)
Figure 26 is B detailed drawing in Figure 23 (play movement filling cotton-wool schematic diagram)
Wherein: the upper body 1a of A type pipe fitting 1, A type pipe fitting, the lower body 1b of A type pipe fitting, Type B pipe fitting 2, adpting flange end 3,4, suspension ring 5, liner plate 6, connecting end 7, adpting flange end 8, suspension ring 9, connecting end 10, I type stiffened plate 11, II type stiffened plate 12, steel pipe 13,14 waiting, limiting stopper 15.
Embodiment
Below in conjunction with accompanying drawing 1-17, the present invention is described in detail, is clearly and completely described the technological scheme in the embodiment of the present invention, and obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The present invention is in order to solve the problems of the prior art; A kind of pipeline section type steel pipe joint is provided at this, as shown in the figure: described pipeline section type steel pipe joint is made up of A type pipe fitting 1 and Type B pipe fitting 2 by improving;
The upper body 1a of adpting flange end 3,4, the A type pipe fitting 1 of the two ends formation semicircular arc of the upper body 1a of described A type pipe fitting 1 is also welded with suspension ring 5, and the two ends of the lower body 1b of its A type pipe fitting 1 are used for docking with steel pipe waiting, are provided with liner plate 6 inside it; The upper edge place of its lower body 1b forms connecting end 7;
Described Type B pipe fitting 2 entirety is semi-circle structure, and one end is adpting flange end 8, it is welded with suspension ring 9, and the edge side edge of its semi-circle is welded with connecting end 10;
The adpting flange end 3,4 of A type pipe fitting 1 is for docking with the adpting flange end 8 of Type B pipe fitting 2; The connecting end 7 of A type pipe fitting 1 is for docking with the connecting end 10 of Type B pipe fitting 2; Liner plate 6 is provided with inside its Type B pipe fitting 2;
Adpting flange end 3,4, adpting flange end 8 corresponding part is welded with I type stiffened plate 11, liner plate 6 corresponding part is welded with II type stiffened plate 12.
Described pipeline section type steel pipe joint, A type and Type B pipe fitting are connected mainly through bolt and rubber water-proof pad.A, Type B pipe fitting liner plate 6 internal diameter are equal to controlled working size with outer diameter of steel pipes waiting, select the steel identical with former design pipe material.
A construction method of installation under water for pipeline section type steel pipe joint, is operating as; Land part is conventional foundation trench excavation and pipeline welding connection construction, underwater portion adopts dredger fluting, utilize barge transportation by driving tube coupling and sink, carrying out connection construction under water by pipeline section type steel pipe joint, then building C30 underwater concrete in joint and assure and closed joint gap; Be specially;
Step 1: utilize dredger to carry out underwater excavation tube seat and deepen pipe trench 1.0 ~ 1.5 meters in joint;
Step 2: utilize the first length of tubing (connecting end welds three place's limiting stoppers) of barge transportation by driving and sink in place;
Step 3: utilize barge and cucurbit to hang A type pipe fitting 1, dirver assists in place;
Step 4: lifting second section pipeline, dirver assists in place;
Step 5: promote A type pipe fitting 1 and be adjacent to pipeline waiting;
Step 6: location truss is set by relative position on barge, lifting Type B pipe fitting 2, carries out bolt under water by dirver and connects and fill space with cotton-wool;
Step 7: refill adaptor two ends sand gravel, build underwater concrete encapsulating steel pipe joint, Cast-in-situ Piles in Sand-filling gravel is to original bed line.
Complete within the predetermined time for ensureing that submarine pipeline is connected with land pipelines, the construction of submarine pipeline joint test is carried out in the pipeline section type steel pipe joint after this employing improvement:
Getting in Yibin paper industry integral moving engineering, drainage works, construction scale is: build one 9.5 ten thousand tons of/day water intaking production lines, engineering properties: newly-built taking and discharging engineering.
Complete within the predetermined time for ensureing that submarine pipeline is connected with land pipelines, my unit is according to on-site actual situations, and submarine pipeline connection construction is carried out in employing " pipeline section type steel pipe joint ".
Job location: land construction part is positioned at district Pei Shi light industry garden, Yibin City Nanxi, Sichuan Province (Ma Liuba village), Pipe installing length 453 meters; Underwater construction part is positioned at waters, dam, water channel school, bronze drum beach, Yibin, the Changjiang river (Upper Yangtze River navigation channel mileage 993Km), double 126 meters, river pipeline is excessively installed, caliber 920mm, at the bottom of design pipe, elevation is 239.955 meters, the reserved degree of depth 1 meter, this river section water level is about 249.00 meters, channel sand gravel thickness 9 ~ 12 meters.
Pipeline construction method: land part is conventional foundation trench excavation and pipeline welding connection construction, underwater portion adopts dredger fluting, utilize barge transportation by driving tube coupling and sink, carry out connection construction under water by " pipeline section type steel pipe joint ", then build C30 underwater concrete in joint and assure and closed joint gap.
Underwater Welding technique easily operates, and reduces difficulty of construction; Joint size field processing on demand, lightweight, cost is low, construction speed is fast, reliable in quality.Field fabrication only once pressing required size machine shaping to two days, and can provide use in time.Field fabrication pipeline section type steel pipe joint cost is about about 30% of producer's customization spheroidal graphite cast iron joint.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a pipeline section type steel pipe joint, is characterized in that: described pipeline section type steel pipe joint is made up of A type and Type B pipe fitting (1,2);
The two ends of the upper body (1a) of described A type pipe fitting (1) form the adpting flange end (3 of semicircular arc, 4), the upper body (1a) of A type pipe fitting (1) is also welded with suspension ring (5), the two ends of the lower body (1b) of its A type pipe fitting (1) are used for docking with steel pipe waiting, are provided with liner plate (6) inside it; The upper edge place of its lower body (1b) forms connecting end (7);
Type B pipe fitting (2) entirety is semi-circle structure, and one end is adpting flange end (8), it is welded with suspension ring (9), and the edge side edge of its semi-circle is welded with connecting end (10);
The adpting flange end (3,4) of A type pipe fitting (1) is for docking with the adpting flange end (8) of Type B pipe fitting (2); The connecting end (7) of A type pipe fitting (1) is for docking with the connecting end (10) of Type B pipe fitting (2); Its Type B pipe fitting (2) inner side is provided with liner plate (6);
Adpting flange end (3,4), adpting flange end (8) corresponding part are welded with I type stiffened plate (11), and liner plate (6) corresponding part is welded with II type stiffened plate (12).
2. pipeline section type steel pipe joint according to claim 1, is characterized in that: A type and Type B pipe fitting (1,2) are connected mainly through bolt and rubber water-proof pad.
3. pipeline section type steel pipe joint according to claim 1, is characterized in that: A, Type B pipe fitting liner plate (6) internal diameter are equal to controlled working size with outer diameter of steel pipes waiting, select the steel identical with former design pipe material.
4. a construction method of installation under water for pipeline section type steel pipe joint, is characterized in that: operate as follows; Land part is conventional foundation trench excavation and pipeline welding connection construction, underwater portion adopts dredger fluting, utilize barge transportation by driving tube coupling and sink, carrying out connection construction under water by pipeline section type steel pipe joint, then building C30 underwater concrete in joint and assure and closed joint gap; Be specially;
Step 1: utilize dredger to carry out underwater excavation tube seat and deepen pipe trench 1.0 ~ 1.5 meters in joint;
Step 2: utilize the first length of tubing of barge transportation by driving and sink in place;
Step 3: utilize barge and cucurbit to hang A type pipe fitting (1), dirver assists in place;
Step 4: lifting second section pipeline, dirver assists in place;
Step 5: promote A type pipe fitting (1) and be adjacent to pipeline waiting;
Step 6: location truss is set by relative position on barge, lifting Type B pipe fitting (2), carries out bolt under water by dirver and connects and fill space with cotton-wool;
Step 7: refill adaptor two ends sand gravel, build underwater concrete encapsulating steel pipe joint, Cast-in-situ Piles in Sand-filling gravel is to original bed line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510173397.9A CN104776278A (en) | 2015-04-14 | 2015-04-14 | Pipe section type steel pipe joint and underwater mounting construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510173397.9A CN104776278A (en) | 2015-04-14 | 2015-04-14 | Pipe section type steel pipe joint and underwater mounting construction method |
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| Publication Number | Publication Date |
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| CN104776278A true CN104776278A (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510173397.9A Pending CN104776278A (en) | 2015-04-14 | 2015-04-14 | Pipe section type steel pipe joint and underwater mounting construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730640A (en) * | 2018-04-28 | 2018-11-02 | 安徽砼宇特构科技有限公司 | A kind of multilayer net like concrete plug |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191328617A (en) * | 1913-12-11 | 1914-11-26 | Maxim Kogan | Improvements in or relating to Couplings for Pipes or Tubes. |
| JP2003232468A (en) * | 2002-02-07 | 2003-08-22 | Ohbayashi Corp | Underwater connecting method for water collecting pipe |
| CN103982707A (en) * | 2014-02-27 | 2014-08-13 | 罗晓晖 | Laying-in-site concrete-enveloped flexible pipe diversion system |
| CN204611146U (en) * | 2015-04-14 | 2015-09-02 | 四川三江港口航道工程建设有限公司 | Pipeline section type steel pipe joint |
-
2015
- 2015-04-14 CN CN201510173397.9A patent/CN104776278A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191328617A (en) * | 1913-12-11 | 1914-11-26 | Maxim Kogan | Improvements in or relating to Couplings for Pipes or Tubes. |
| JP2003232468A (en) * | 2002-02-07 | 2003-08-22 | Ohbayashi Corp | Underwater connecting method for water collecting pipe |
| CN103982707A (en) * | 2014-02-27 | 2014-08-13 | 罗晓晖 | Laying-in-site concrete-enveloped flexible pipe diversion system |
| CN204611146U (en) * | 2015-04-14 | 2015-09-02 | 四川三江港口航道工程建设有限公司 | Pipeline section type steel pipe joint |
Non-Patent Citations (1)
| Title |
|---|
| 李峻: "浅析水下大型取水管道施工技术", 《城市建设理论研究》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730640A (en) * | 2018-04-28 | 2018-11-02 | 安徽砼宇特构科技有限公司 | A kind of multilayer net like concrete plug |
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Application publication date: 20150715 |