CN104344086B - Pipeline buttress device and using method - Google Patents
Pipeline buttress device and using method Download PDFInfo
- Publication number
- CN104344086B CN104344086B CN201310316707.9A CN201310316707A CN104344086B CN 104344086 B CN104344086 B CN 104344086B CN 201310316707 A CN201310316707 A CN 201310316707A CN 104344086 B CN104344086 B CN 104344086B
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- Prior art keywords
- side panel
- pipe collar
- panel
- support bar
- steel plate
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- 238000000034 method Methods 0.000 title claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 238000003466 welding Methods 0.000 claims description 19
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 206010057855 Hypotelorism of orbit Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
- F16L3/1008—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing with two members engaging the pipe, cable or tubing, both being made of thin band material completely surrounding the pipe
- F16L3/1016—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing with two members engaging the pipe, cable or tubing, both being made of thin band material completely surrounding the pipe the members being joined by means of two screws
-
- 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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
- F16L3/1091—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing with two members, the two members being fixed to each other with fastening members on each side
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
- Earth Drilling (AREA)
Abstract
A pipeline buttress device belongs to the technical field of oilfield pipeline transportation. The first side panel and the second side panel are vertically welded, the second side panel and the fourth side panel are vertically welded, the first side panel and the fourth side panel are parallel, the side panels and the third side panel are vertically welded, and the second side panel and the third side panel are parallel; the top panel is open, the first side panel and the second side panel are welded with pipe hoop bases, and the pipe hoop connecting steel plate is vertically welded near the center line of the pipe hoop bases; the pipe hoop connecting steel plate is welded with a lower pipe hoop, the lower pipe hoop is a rectangular steel plate, and a semicircular recess is formed in the middle of the rectangular steel plate; the upper part of the lower pipe hoop is connected with the upper pipe hoop through a fastening bolt, the upper pipe hoop is a rectangular steel plate, and a semicircular bulge is arranged in the middle of the rectangular steel plate; the semicircular recess of the lower pipe hoop and the semicircular bulge of the upper pipe hoop are opposite to form a circular ring, and screw holes are drilled on two sides of the circular ring of the recess and the bulge and used for safely fastening bolts; the invention is suitable for pipelines which are frequently required to be disassembled and assembled.
Description
Technical field
The present invention relates to a kind of pipeline buttress device and using method, belong to oil field pipe conveying technologyField.
Background technology
On oil field, the oil gas of Oil/gas Well output need to be carried by pipeline, and section of tubing is erected atOn ground, need to use pipeline buttress, most pipeline buttress generally adopts concrete duct to prop upPier is as support, then by pipeline construction on concrete duct buttress. Concrete duct buttress is generalAdopt reinforcing bar and cement to build, and pre-buried set bolt, and need to deep-cut pipe pier foundation pit, quality isHeavy, cannot to carry out concrete duct buttress carrying and utilization again. Utility model ZL201220110955.9 have announced a kind of movable tube buttress, make simply, can reusePipeline buttress, but this utility model patent has following shortcoming: buttress and pipeline clamp hypotelorism, nothingMethod is carried out heat retaining operation to pipeline; Buttress is being full of after sandstone filler, and removing sandstone filler need to pass throughSlidably dismantle side and shovel out manually, waste time and energy.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of pipeline buttress device and userMethod, the construction speed of raising pipeline, the recycling rate of waterused of raising pipeline buttress, improves under case of emergencyPipeline the speed of speedily carrying out rescue work is installed, improve operability and the portability of pipeline buttress.
A kind of pipeline buttress device, bottom panel and the first side panel, the second side panel, the 3rd sidePanel, the 4th side panel composition; Bottom panel and the first side panel, the second side panel, the 3rd side panel,The 4th side panel is rectangular steel plates; The first side panel and the second side panel carry out vertical welding, secondSide panel and the 4th side panel vertical welding, the first side panel is parallel with the 4th side panel, side panel andThe 3rd side panel vertical welding, the second side panel is parallel with the 3rd side panel; Top panel is uncovered,After the first side panel, the second side panel, the 3rd side panel, the 4th side panel welding, be placed on bottom panelUpper, form uncovered rectangular box;
On the first side panel and the second side panel, be welded with pipe collar pedestal, pipe collar junction steel plate vertical weldingBe connected near the center line of pipe collar pedestal; Pipe collar junction steel plate and the welding of lower pipe collar, lower pipe collar is rectangleSteel plate, has semi-cylindrical canyon at the middle part of rectangular steel plates; Above lower pipe collar by fastening bolt withUpper pipe collar connects, and upper pipe collar is rectangular steel plates, has semi-cylindrical hill at the middle part of rectangular steel plates; Lower pipeAnnulus of semi-cylindrical canyon formation relative to upper pipe collar semi-cylindrical hill of hoop, depression and protruding circular ringBoth sides be drilled with screw hole, for being fastened securely bolt;
Spudded on the pipe collar pedestal square aperture of two rectangles, circular aperture spuds on bottom panel;Support bar is by square aperture and circular aperture; Support bar is mainly by support bar triangle handle, topDisk, bottom lower disc composition on pin, top lower stop lever, support mobile jib, bottom; On top, keep offBar and top lower stop lever are vertically welded in and support on mobile jib, pin on support bar triangle handle, top,Top lower stop lever three is in the same plane; Pin and top lower stop lever lay respectively at square on topThe upper and lower both sides of square aperture of shape, and length is less than the length of square aperture; Disk and bottom on bottomLower disc and support mobile jib coaxial welding, and lay respectively at the upper and lower both sides of circular aperture, disk on bottomAll be greater than circular aperture with bottom lower disc diameter, upper lower disc all can not be extracted out from circular aperture;Support bar is symmetric with pipe collar junction steel plate, and quantitative requirement is more than group.
Be welded with reinforcement steel disc in pipe collar junction steel plate both sides; At the first side panel and the 4th side panel twoSide is welded with casing suspension ring.
Spend by support bar triangle rotatable handle 90, drive pin, top lower stop lever, the end on topDisk and bottom lower disc 90-degree rotation in portion, can form case by bottom panel and side panel lockingBody or release remove sandstone in casing.
In order to make pipe collar junction steel plate more firm, be welded with reinforcement steel in pipe collar junction steel plate both sidesSheet; In order to prevent that pipeline from shaking between upper and lower pipe collar, can increase rubber blanket at upper and lower pipe collar inwallLayer.
A using method for pipeline buttress device, contains following steps; By pipe collar pedestal, four sidesAfter panel welding, be vertically placed on bottom panel, on two support bar triangle handles and top, pin passes throughAfter square aperture passes, support bar triangle rotatable handle 90 is spent, drive pin, top on topDisk and bottom lower disc 90-degree rotation on lower stop lever, bottom, can be by bottom panel and side panelPin, form uncovered rectangular box; Pipeline is placed on lower pipe collar, by logical to upper pipe collar and lower pipe collarCross fastening bolt and be fixed, be positioned in ground grading after casing is filled to sandstone; Dismounting New pipeWhen road buttress, first fastening bolt is unscrewed, pulled down pipe collar and pipeline, support bar triangle handle is revolvedTurn 90 degrees, make on strut triangle handle and top pin 90-degree rotation and pass from square aperture, willBottom panel separates with side version, above carries side panel casing suspension ring and directly pours out sandstone.
Beneficial effect of the present invention can support ground oil and gas pipes, not high to ground level requirements, nothingNeed an excavation pier foundation, greatly reduced the construction operation amount of pipeline buttress foundation pit excavation, reducedLabour intensity; Novel pipeline buttress can recycle, better portable, firm in structure, suitable especiallyClose the pipeline that often needs dismounting.
Brief description of the drawings
When considered in conjunction with the accompanying drawings, by the detailed description with reference to below, can be more better completeUnderstand the present invention and easily learn wherein many advantages of following, but accompanying drawing described herein is used forA further understanding of the present invention is provided, forms a part of the present invention, schematic enforcement of the present inventionExample and explanation thereof be used for explaining and the present invention do not form inappropriate limitation of the present invention, as figure wherein:
Fig. 1 novel pipeline buttress stereochemical structure intention;
Fig. 2 novel pipeline buttress front view;
Fig. 3 novel pipeline buttress top view;
Fig. 4 novel pipeline buttress bottom view;
Fig. 5 novel pipeline buttress bottom panel apart view;
Below in conjunction with drawings and Examples, the present invention is further described.
Detailed description of the invention
Obviously the many modifications and variations that, those skilled in the art do based on aim of the present invention belong toProtection scope of the present invention.
Embodiment 1: as shown in Figure 1, Figure 2, Figure 3 shows, a kind of pipeline buttress device,
Consult Fig. 5. Pipeline buttress of the present invention is mainly made up of casing and pipe collar; Rectangular box is by oneBottom panel 9 and the first side panel 6, the second side panel 7, the 3rd side panel 10, the 4th side panel 11Composition; Bottom panel 9 and the first side panel 6, the second side panel 7, the 3rd side panel 10, the 4th sidePanel 11 is square steel plate, length, the width of casing and be highly 600mm, and steel plate is thickDegree 5mm; The first side panel 6, the second side panel 7 carry out vertical welding, the second side panel 7 andFour side panel 11 vertical weldings, the first side panel 6 is parallel with the 4th side panel 11, the 4th side panel11 and the 3rd side panel 10 vertical welding, side panel 7 is parallel with the 3rd side panel 10; Top surfacePlate 14 is uncovered, the first side panel 6, the second side panel 7, the 3rd side panel 10, the 4th sideAfter plate 11 welding, be placed on bottom panel 9, form uncovered rectangular box.
Consult Fig. 1 and Fig. 2. On the second side panel 7 and the 3rd side panel 10, be welded with pipe collar baseSeat 5, pipe collar junction steel plate 15 is vertically welded near the center line of pipe collar pedestal 5; Pipe collar connectsSteel plate 15 welds with lower pipe collar 16, and lower pipe collar 16 is rectangular steel plates, has at the middle part of rectangular steel platesSemi-cylindrical canyon; Above lower pipe collar 16, be connected upper pipe with upper pipe collar 1 by fastening bolt 2Hoop 1 is rectangular steel plates, has semi-cylindrical hill at the middle part of rectangular steel plates.
Consult Fig. 2 and Fig. 3. Spudded on pipe collar pedestal 5 square aperture 4 of two similar rectangles,Circular aperture 8 spuds on bottom panel 9; 2 pairs of support bars 3 are by square aperture 4 and circular aperture8; Support bar 3 is mainly by pin 3-2, top lower stop lever on support bar triangle handle 3-1, topDisk 3-5, bottom lower disc 3-6 composition on 3-3, support mobile jib 3-4, bottom; Pin on top3-2 and top lower stop lever 3-3 are vertically welded in and support mobile jib 3-4 above, support bar triangle handle 3-1,Pin 3-2 on top, top lower stop lever 3-3 three are in the same plane; Pin 3-2 on topWith top lower stop lever 3-3 and lay respectively at the square aperture of rectangle Shang Xia 4 both sides, and the length side of being less thanShape aperture 4; Disk 3-5 and bottom lower disc 3-6 and support mobile jib 3-4 coaxial welding on bottom,And Shang Xia 8 both sides to lay respectively at circular aperture, disk 3-5 and bottom lower disc 3-6 diameter on bottomAll be greater than circular aperture 8, upper lower disc all can not be extracted out from circular aperture 8.
Consult Fig. 5. Come into operation: by pipe collar pedestal 5, a side panel 6, the second side panel 7, the 3rd sidePanel 10, the 4th side panel 11 are vertically placed on bottom panel 9 after welding by technical scheme, twoAfter on support bar triangle handle 3-1 and top, pin 3-2 passes by square aperture 4, by support barTriangle rotatable handle 90 is spent, disk on pin 3-2, top lower stop lever 3-3, bottom on drive top3-5 and bottom lower disc 3-6 90-degree rotation, can pin bottom panel and side panel, formsUncovered rectangular box; Pipeline is placed on lower pipe collar 16, upper pipe collar 1 and lower pipe collar 16 are passed throughFastening bolt 2 is fixed, and is positioned in ground grading after casing is filled to sandstone. Dismounting:First fastening bolt 2 is unscrewed, pulled down pipe collar 1 and pipeline, by support bar triangle rotatable handle 90Degree, makes on strut triangle handle 3-1 and top pin 3-2 90-degree rotation and wears from square aperture 4Go out, bottom panel 9 can be separated with side version, above carrying side panel casing suspension ring 12 can be directlyPour out sandstone.
A using method for pipeline buttress device, contains following steps; Consult Fig. 1, Fig. 2, Fig. 3.Pipe collar pedestal 5, four side panels 6,7,10,11 are vertically placed on after by technical scheme weldingOn bottom panel 9, on two support bar triangle handle 3-1 and top, pin 3-2 is by square aperture 4After passing, support bar triangle rotatable handle 90 is spent, drive pin 3-2, top lower block on topDisk 3-5 and bottom lower disc 3-6 90-degree rotation on bar 3-3, bottom, can be by bottom panelPin with side panel, form uncovered rectangular box; Pipeline is placed on lower pipe collar 16, by upper pipeHoop 1 and lower pipe collar 16 are fixed by fastening bolt 2, by casing fill be positioned over after sandstone flatOn whole ground; When dismounting novel pipeline buttress, first fastening bolt 2 is unscrewed, pulled down pipe collar1 and pipeline, support bar triangle rotatable handle 90 is spent, make on strut triangle handle 3-1 and topPin 3-2 90-degree rotation also passes from square aperture 4, bottom panel 9 and side version can be dividedFrom, above carry side panel casing suspension ring 12 and can directly pour out sandstone.
As mentioned above, embodiments of the invention are explained, but as long as do not have in factHave the inventive point of the present invention of disengaging and effect can have a lot of distortion, this is to those skilled in the artApparent. Therefore, such variation is also all included in protection scope of the present inventionWithin.
Claims (4)
1. a pipeline buttress device, it is characterized in that a bottom panel and the first side panel, the second side panel, the 3rd side panel,The 4th side panel composition; Bottom panel and the first side panel, the second side panel, the 3rd side panel, the 4th side panel are squareShape steel plate; The first side panel and the second side panel carry out vertical welding, the second side panel and the 4th side panel vertical welding,The first side panel is parallel with the 4th side panel, the 4th side panel and the 3rd side panel vertical welding, the second side panel and the 3rdSide panel is parallel; Top panel is uncovered, the first side panel, the second side panel, the 3rd side panel, the 4th side panel welderingAfter connecing, be placed on bottom panel, form uncovered rectangular box;
On the first side panel and the second side panel, be welded with pipe collar pedestal, pipe collar junction steel plate is vertically welded in pipe collar pedestalCenter line near; Pipe collar junction steel plate and the welding of lower pipe collar, lower pipe collar is rectangular steel plates, has at the middle part of rectangular steel platesSemi-cylindrical canyon; Above lower pipe collar, be connected with upper pipe collar by fastening bolt, upper pipe collar is rectangular steel plates, at rectangleThere is semi-cylindrical hill at the middle part of steel plate; Annulus of the semi-cylindrical canyon of lower pipe collar formation relative to upper pipe collar semi-cylindrical hill,The both sides of depression and protruding circular ring are drilled with screw hole, for fastening bolt is installed;
Spudded on the pipe collar pedestal square aperture of two rectangles, circular aperture spuds on bottom panel; Support bar is by sideShape aperture and circular aperture; Support bar is mainly by pin, top lower stop lever, support master on support bar triangle handle, topDisk, bottom lower disc composition on bar, bottom; On top, pin and top lower stop lever are vertically welded in and support on mobile jib,Pin on support bar triangle handle, top, top lower stop lever three are in the same plane; On top under pin and topPin also lays respectively at the upper and lower both sides of square aperture of rectangle, and length is less than the length of square aperture; On bottom disk andBottom lower disc with support mobile jib coaxial welding, and lay respectively at the upper and lower both sides of circular aperture, on bottom under disk and bottomDisk diameter is all greater than circular aperture, and upper lower disc all can not be extracted out from circular aperture; Support bar is with pipe collar junction steel plateBe symmetric, quantity is more than or equal to 2.
2. a kind of pipeline buttress device according to claim 1, is characterized in that being welded with reinforcement in pipe collar junction steel plate both sidesSteel disc; Be welded with casing suspension ring at the first side panel and the 4th side panel both sides.
3. a kind of pipeline buttress device according to claim 1, is characterized in that spending by support bar triangle rotatable handle 90,Drive disk and bottom lower disc 90-degree rotation on pin on top, top lower stop lever, bottom, can be by bottom panel andSide panel locking forms casing or release removes sandstone in casing.
4. a using method for pipeline buttress device, contains following steps; To after pipe collar pedestal, four side panel welding, vertically putPut on bottom panel, after on two support bar triangle handles and top, pin passes by square aperture, by support bar triangleRotatable handle 90 is spent, and drives disk and bottom lower disc 90-degree rotation on pin on top, top lower stop lever, bottom,Bottom panel and side panel can be pinned, form uncovered rectangular box; Pipeline is placed on lower pipe collar, by upper pipe collarBe fixed by fastening bolt with lower pipe collar, be positioned in ground grading after casing is filled to sandstone; Dismounting pipeline buttressWhen device, first fastening bolt is unscrewed, pulled down pipe collar and pipeline, support bar triangle rotatable handle 90 is spent, make strutPin 90-degree rotation passing from square aperture on triangle handle and top, separates bottom panel with side version, above put forward sidePanel casing suspension ring are directly poured out sandstone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310316707.9A CN104344086B (en) | 2013-07-25 | 2013-07-25 | Pipeline buttress device and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310316707.9A CN104344086B (en) | 2013-07-25 | 2013-07-25 | Pipeline buttress device and using method |
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| Publication Number | Publication Date |
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| CN104344086A CN104344086A (en) | 2015-02-11 |
| CN104344086B true CN104344086B (en) | 2016-05-11 |
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| CN201310316707.9A Active CN104344086B (en) | 2013-07-25 | 2013-07-25 | Pipeline buttress device and using method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108771906A (en) * | 2018-06-06 | 2018-11-09 | 沈婷 | A kind of sewage-treatment plant |
| CN108591618A (en) * | 2018-07-04 | 2018-09-28 | 湖北江汉利达石油物资装备有限公司 | Environmentally friendly bogey |
| CN114733280A (en) * | 2022-04-13 | 2022-07-12 | 衢州元立金属制品有限公司 | Filter additionally arranged on pneumatic ash conveying pipeline |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202302309U (en) * | 2011-11-04 | 2012-07-04 | 中国石油天然气集团公司 | Adjustable fixed base |
| CN202532021U (en) * | 2012-03-22 | 2012-11-14 | 中国石油天然气股份有限公司 | Movable pipeline buttress |
| CN202646926U (en) * | 2012-04-14 | 2013-01-02 | 智红梅 | Fireproof type electric cable bridge |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006283814A (en) * | 2005-03-31 | 2006-10-19 | Hitachi Kokusai Electric Inc | Fixing structure of pipe |
| JP2011208778A (en) * | 2010-03-30 | 2011-10-20 | Sanwa Tekki Corp | Piping fixing device |
| KR101392459B1 (en) * | 2011-11-22 | 2014-05-08 | 한국가스공사 | Pipe supporting appartus |
-
2013
- 2013-07-25 CN CN201310316707.9A patent/CN104344086B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202302309U (en) * | 2011-11-04 | 2012-07-04 | 中国石油天然气集团公司 | Adjustable fixed base |
| CN202532021U (en) * | 2012-03-22 | 2012-11-14 | 中国石油天然气股份有限公司 | Movable pipeline buttress |
| CN202646926U (en) * | 2012-04-14 | 2013-01-02 | 智红梅 | Fireproof type electric cable bridge |
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| CN104344086A (en) | 2015-02-11 |
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