CN106247021B - A kind of auxiliary device of conveying lightweight oil-piping - Google Patents
A kind of auxiliary device of conveying lightweight oil-piping Download PDFInfo
- Publication number
- CN106247021B CN106247021B CN201610603477.8A CN201610603477A CN106247021B CN 106247021 B CN106247021 B CN 106247021B CN 201610603477 A CN201610603477 A CN 201610603477A CN 106247021 B CN106247021 B CN 106247021B
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- China
- Prior art keywords
- plate
- rolling groove
- connecting plate
- oil
- side plate
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- 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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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
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
- F16L3/20—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
- F16L3/205—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs
-
- 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
- F16L3/02—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing
Abstract
The invention discloses a kind of auxiliary devices of conveying lightweight oil-piping, including pedestal, support plate, supporting rod and rolling groove are provided on pedestal, limited block is installed on rolling groove, rotation axis, connecting plate are also set up between supporting rod, setting rotating roller and shaft in connecting plate lower end groove, rotating roller rotates around the axis, connecting plate upper end is fixed with pipe-line tank, petroleum pipeline is provided in pipe-line tank, the both sides of connecting plate are fixed with side plate, and the positive upper and lower of side plate is respectively set overhead gage and lower baffle plate, several springs are provided between side plate and upper and lower baffle.The present invention is easy to happen the area of variation to the external stress caused by oil pipeline or oil pipeline holder for high wind area or geologic structure; the internal stress generated by external stress can be shed by the inclination of connecting plate; achieve the purpose that protect oil pipeline and support construction; avoid oil leakage and caused by economic loss, have extensive use value.
Description
Technical field
The present invention relates to a kind of holders of transfer oil pipeline, and in particular to a kind of auxiliary dress of conveying lightweight oil-piping
It sets.
Background technology
The main component of oil is the mixture of various alkane, cycloalkane, aromatic hydrocarbon, is a kind of sticky, dark brown liquid
Body is referred to as " industrial blood " since it belongs to the indispensable raw material of the modern industry.From 1853 in Polish south gram
Loews promise nearby the First modern times oil field opened up and 1861 since Baku establishes First oil plant in the world,
Oil progresses into people's lives, and closely bound up with daily life.
Controlling methodology of oil pipeline is the pipe-line system for transporting oil and oil product, mainly by petroleum pipeline, oil transportation station
And other relevant ancillary equipments are constituted, be one of capital equipment of oil movement and storage industry and crude oil and oil product most
Main conveying equipment, compared with railway and highway oil transportation, the means of transportation of oil pipeline have big freight volume, good leak tightness, at
The features such as this low and safety coefficient is high.
When being laid with the oil pipeline of long range, it is often necessary to according to the difference of landform, be arranged in the lower section of oil pipeline
Support construction so that oil pipeline can adapt to different landform.But for some geologic structures be easy to happen variation or
The larger area of person's wind-force, traditional oil pipeline holder unload destressing due to that can not generate adaptive deflection, lead to stress
Accumulation eventually leads to oil pipeline fracture or holder damage in the holder of oil pipeline or oil pipeline, leads to oil
Leakage, causes serious economic loss.
Invention content
The technical problem to be solved by the present invention is to for the defect of conventional oil pipeline road holder, and it is an object of the present invention to provide one kind
The auxiliary device for conveying lightweight oil-piping is easy to happen the area of variation for high wind area or geologic structure, it is defeated to solve tradition
The oil pipeline or holder that oil-piping holder can not shed the internal stress of external stress generation and make damage, and eventually lead to oil
It reveals, cause the problem of serious economic loss.
The present invention is achieved through the following technical solutions：A kind of auxiliary device of conveying lightweight oil-piping, including pedestal, it is described
It is provided with support plate on pedestal, the supporting rod being provided on pedestal between support plate and between the supporting rod
Rolling groove, the upper surface of the rolling groove is circular arc concave surface, and rolling groove is symmetrical about the plane where two supporting rods, is rolled
Slot is more than the height for rolling groove center close to the height of support plate, is provided with several screw holes on rolling groove, further include limiting plate, with
And the bolt to match with screw hole, the bolt lower end is through limiting plate and is inserted into screw hole, limiting plate bottom surface and rolling groove
Upper surface matches, and the connecting plate of rotation axis and the undercut shape rotated around rotation axis, institute are additionally provided between supporting rod
It states and is provided with rotating roller and shaft in the groove of connecting plate lower end, rotating roller rotates around the axis, upper table of the rotating roller along rolling groove
Face rolls, and connecting plate upper end is fixed with pipe-line tank, and petroleum pipeline is provided in pipe-line tank, and the both sides of connecting plate are fixed with perpendicular to even
The positive upper and lower of the side plate of fishplate bar, the side plate is respectively arranged with overhead gage and lower baffle plate, and the overhead gage and lower baffle plate are pacified
Dress is provided with several springs on the supporting plate, between side plate and overhead gage, is also equipped between the side plate and lower baffle plate several
Spring.In the prior art, traditional oil pipeline holder, which uses, is embedded in pedestal fixation in soil, exposes holder on the ground
Upper placement pipe-line tank, pipe-line tank place oil pipeline.Setting can reach support oil pipeline in this way, make the oil transportation of oil pipeline
Circuit can cross some special landform such as river, rugged mountain path etc..But for some high wind area, high wind
Cause external stress that the stress of internal stent is changed on holder, internal stent generates inclined internal stress, however, whole
The fixed structure of body does not allow holder or pipeline road to make corresponding movement to this internal stress, and can only deform upon, because
This holder or pipeline road are susceptible to crackle, occur breakage when serious, cause oil to be revealed, cause serious economic loss,
Especially for remote districts, the repair to holder or pipeline road is very difficult.Meanwhile soft for some geology,
Or the area that massif gradually slides, be embedded in pedestal in soil also can run-off the straight, if holder do not generated with respect to pedestal it is corresponding
Inclination, then holder will pull pipeline road, and pipeline road is caused to rupture, equally will also result in oil leakage.In order to
It solves the above problems, the present invention is easy to happen the area of variation for high wind area or geologic structure, it is proposed that one kind can be certainly
Body coordinates the relative position between holder and pedestal, to reach the oil pipeline support knot for shedding holder or oil pipeline internal stress
Structure.The support construction includes the pedestal being embedded in soil, and there are two the support plate being mutually parallel, the two parts for setting on pedestal
All it is the structure that conventional oil pipeline holder is possessed.Unlike, the present invention is additionally provided with two supporting rods and is set on pedestal
The rolling groove between supporting rod is set, rolling groove is circular arc concave structure, and the front view section of upper surface is a minor arc, is rolled
Slot is symmetrical about the plane that two supporting rods are formed and it is more than the height of the center close to the height of the side of support plate
Degree.Rotation axis is additionally provided between supporting rod, the both ends of rotation axis through connecting plate and are slidably inserted into supporting rod, connecting plate
It can realize and be rotated around rotation axis.Connecting plate is a concave structure upsided down, the upper end fixed -piping slot of connecting plate, pipeline
Petroleum pipeline is set in slot, shaft and rotating roller are installed in the groove of the lower end of connecting plate, rotating roller is along the upper surface of rolling groove
It slidably reciprocates, rolling groove plays a part of support to the parts connected above rotating roller and rotating roller, it is preferred that shaft
Axis along rotating roller through two bottom surfaces of rotating roller and is slidably inserted into connecting plate, and shaft should be mutual with rotation axis
It is parallel, also set up there are two side plate in two sides of connecting plate, surface, the underface of side plate be respectively arranged with overhead gage and
Lower baffle plate, overhead gage and lower baffle plate are respectively mounted on the supporting plate.Several springs are both provided between side plate and upper and lower baffle.Make
When with the present apparatus, first, pedestal is embedded in soil, on the ground by support plate, rolling groove, supporting rod dew；Then, bullet is checked
Whether the elasticity of spring, shaft, rotation axis are coated with lubricating oil；Adjustment spring later, it is horizontal positioned, connection to adjust and calibrate side plate
Plate is to be disposed vertically, correspondingly, the rotating roller below connecting plate is located at the minimum point of the circular arc concave surface of rolling groove；It finally, will be defeated
Oil pipe is put into pipe-line tank.By above structure, when encountering high wind, pipe-line tank swings back and forth with petroleum pipeline, drives connecting plate
It is swung around rotation axis, and the rotating roller of connecting plate lower end then slidably reciprocates on rolling groove, due to being affected by gravity, rotating roller
Always it can move, i.e., be drawn close to center to the minimum point of the circular arc concave surface of rolling groove, so, after high wind stopping, connection
Plate can keep vertical again, in addition, connecting plate, when swinging, the side plate on connecting plate can be rebounded by coupled spring
Or the effect stretched, the amplitude of fluctuation of connecting plate is further limited, sheds part wind-force so that connecting plate is easier after becalming
Restore to initial upright position；Meanwhile the area of variation is easy to happen for geologic structure, and after pedestal run-off the straight, rolling
The low dot location of dynamic slot upper surface changes, and causes the position of rotating roller also to occur to change accordingly, rotating roller drives connection
Plate tilts so that connecting plate relative level remains vertical.In conclusion the present invention is for high wind area or geologic structure
It is easy to happen the regional to the external stress caused by oil pipeline or oil pipeline holder of variation, it being capable of inclining by connecting plate
The internal stress generated by external stress tiltedly is shed, achievees the purpose that protect oil pipeline and support construction, avoids oil and let out
Dew and caused by economic loss, have extensive use value.
For wind-force is more powerful compared with general area or geologic structure variation causes the gradient of pedestal higher
Area, since connecting plate amplitude of fluctuation or angle of inclination are larger, side plate can frequently hit overhead gage and lower baffle plate, or be against
On overhead gage or lower baffle plate, continue to increase pressure, eventually result in side plate, overhead gage or lower baffle plate in this way and fracture, damages
The present apparatus.To solve the above-mentioned problems, the present invention installs limiting plate on rolling groove, the lower surface of limiting plate and rolling groove it is upper
Surface matches, and several screw holes are provided on rolling groove, by the bolt-through limiting plate to match with screw hole dimensions and inserting
Enter into screw hole to have the function that limiting plate being fixed on rolling groove.When without using limiting plate, limiting plate can be taken
Under；When finding that side plate continually hits overhead gage or lower baffle plate, then basis wants the connecting plate amplitude of fluctuation reached on rolling groove
The position of degree setting limiting plate, limiting plate further limit connecting rod by limiting sliding distance of the rotating roller on rolling groove
With the amplitude of fluctuation of side plate.By above structure, the present apparatus can further adapt to that wind-force is more powerful or geologic change is bright
The region for showing and causing pedestal gradient larger, avoiding side plate, overhead gage and lower baffle plate, there is a situation where fracture in use.
Further, limiting plate is two pieces, and symmetrical about the plane where two supporting rods.Usually two pieces of limits of setting
Plate, and two pieces of limiting plates are symmetrical about the plane where supporting rod, setting in this way can cope with the high wind for often changing wind direction.
Further, anti-skidding salient point is provided on the inside of pipe-line tank, the material of the anti-skidding salient point is nitrile rubber.Butyronitrile rubber
Glue can not only buffer generated impulse force when petroleum pipeline is contacted with pipe-line tank, also have and increase friction as universal rubber
Power avoids petroleum pipeline from being relatively moved with pipe-line tank.The shape of anti-skidding salient point also for enhancing petroleum pipeline and pipe-line tank it
Between frictional force.
Further, the distance between the side plate and overhead gage are 20~30 centimetres, between the side plate and lower baffle plate
Distance be 20~30 centimetres.If side plate is too wide at a distance from overhead gage, lower baffle plate, the amplitude of fluctuation of connecting plate can be caused too
Greatly, petroleum pipeline is caused to be slid from pipe-line tank；If apart from too narrow, side plate can be made frequently to occur with overhead gage, lower baffle plate
Collision, shortens the service life of side plate, overhead gage, lower baffle plate.
Compared with prior art, the present invention having the following advantages and advantages：
1, the present invention is easy to happen the area of variation to oil pipeline or oil pipeline for high wind area or geologic structure
External stress caused by holder can shed the internal stress generated by external stress by the inclination of connecting plate, reach guarantor
Protect oil pipeline and support construction purpose, avoid oil leakage and caused by economic loss, have extensive use value；
2, the present invention defines sliding distance of the rotating roller on rolling groove, reaches by the way that limiting plate is arranged in rolling groove
To the effect of the amplitude of fluctuation of limitation connecting plate, side plate, enabling to the present apparatus further to adapt to, wind-force is more powerful or ground
The region that qualitative changeization is apparent and causes pedestal gradient larger, avoids side plate, overhead gage and lower baffle plate and rolls in use
Disconnected situation；
3, the present invention is provided with rolling groove, is matched with the rotating roller for being arranged in connecting plate bottom by rolling groove, not only
To connecting plate and its more than parts play the role of support, moreover it is possible to the swing of connecting plate is changed into rolling friction, promoted
Shed the effect of external stress；
4, the present invention is provided with the anti-skidding salient point of nitrile rubber material between pipe-line tank and petroleum pipeline, avoids the two phase
To movement, prevent petroleum pipeline from sliding out pipe-line tank.
Description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the vertical view of rolling groove；
Connection diagrams of the Fig. 3 between connecting plate and rotating roller.
Label and corresponding parts title in attached drawing：
1- pedestals, 2- support plates, 3- pipe-line tanks, 4- petroleum pipelines, 5- overhead gages, 6- lower baffle plates, 7- rolling grooves, 8- supports
Bar, 9- limiting plates, 10- springs, 11- rotation axis, 12- connecting plates, 13- rotating rollers, 14- bolts, 15- screw holes.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, the present invention is a kind of auxiliary device of conveying lightweight oil-piping, including pedestal 1, bottom
It is provided with support plate 2 on seat 1, the supporting rod 8 that is provided on pedestal 1 between support plate 2 and is located at the supporting rod 8
Between rolling groove 7, the upper surface of rolling groove 7 is circular arc concave surface, and rolling groove 7 is symmetrical about the plane where two supporting rods 8,
Rolling groove 7 is more than the height at 7 center of rolling groove close to the height of support plate 2, is provided with several screw holes 15 on rolling groove 7, also wraps
Limiting plate 9 and the bolt to match with screw hole 15 14 are included, 14 lower end of bolt is through limiting plate 9 and is inserted into screw hole 15, limits
Position 9 bottom surface of plate matches with 7 upper surface of rolling groove, rotation axis 11 is additionally provided between supporting rod 8 and around 11 turns of rotation axis
The connecting plate 12 of dynamic undercut shape is provided with rotating roller 13 and shaft in the groove of 12 lower end of connecting plate, and rotating roller 13 rotates
Shaft rotation is dynamic, and rotating roller 13 is rolled along the upper surface of rolling groove 7, and 12 upper end of connecting plate is fixed with pipe-line tank 3, is arranged in pipe-line tank 3
There are petroleum pipeline 4, the both sides of connecting plate 12 to be fixed with the side plate perpendicular to connecting plate 12, the positive upper and lower of side plate is respectively arranged with
Overhead gage 5 and lower baffle plate 6, overhead gage 5 and lower baffle plate 6 are installed in support plate 2, if being provided between side plate and overhead gage 5
Dry spring 10 is also equipped with several springs 10 between side plate and lower baffle plate 6；Limiting plate 9 is two pieces, and about two supporting rods 8
The plane at place is symmetrical；3 inside of pipe-line tank is provided with anti-skidding salient point, and the material of anti-skidding salient point is nitrile rubber；Side plate and upper gear
The distance between plate 5 is 20~30 centimetres, and the distance between side plate and lower baffle plate 6 are 20~30 centimetres.
When using the present apparatus, first, pedestal 1 is embedded in soil, support plate 2, rolling groove 7, supporting rod 8 are exposed at ground
On；Then, the elasticity of spring 10 is checked, whether shaft, rotation axis 11 are coated with lubricating oil, it is strong to count the long-term wind-force in this area
Degree, geology loosen situation；Adjustment spring 10 later, adjust and calibrate side plate be horizontally arranged, connecting plate 12 be disposed vertically, phase
It answers, the rotating roller 13 of 12 lower section of connecting plate is located at the minimum point of the circular arc concave surface of rolling groove 7, and limit is installed on rolling groove 7
Limited block 9 is locked on rolling groove 7 by block 9 by bolt 14 and screw hole 15；Finally, petroleum pipeline 4 is put into pipe-line tank 3.When
When encountering high wind, pipe-line tank 3 swings back and forth with petroleum pipeline 4, and connecting plate 12 is driven to be swung around rotation axis 11, and rotating roller 13 then exists
It slidably reciprocates on rolling groove 7, if wind-force is powerful, then rotating roller 13 collides with limited block 9, avoids side plate and overhead gage
5 and 6 reciprocating collision of lower baffle plate, after high wind stops, rotating roller 13 is back to the minimum point of rolling groove 7, and connecting plate 12 keeps vertical, separately
Outside, for connecting plate 12 when swinging, the side plate on connecting plate 12 can be by the coupled rebound of spring 10 or making for stretching
With further limiting the amplitude of fluctuation of connecting plate 12 so that connecting plate 12 is easier to restore to initial upright position；For
Geologic structure is easy to happen the area of variation, and after 1 run-off the straight of pedestal, the low dot location of 7 upper surface of rolling groove changes,
The position of rotating roller 13 is caused also to occur to change accordingly, rotating roller 13 drives connecting plate 12 to tilt so that connecting plate 12 is opposite
Horizontal plane remains vertical.In conclusion the area that the present invention is easy to happen variation for high wind area or geologic structure is right
External stress caused by oil pipeline or oil pipeline holder can be shed by the inclination of connecting plate 12 due to external stress
The internal stress of generation achievees the purpose that protect oil pipeline and support construction, avoid oil leakage and caused by economic loss,
With extensive use value.
Above-described specific implementation mode has carried out further the purpose of the present invention, technical solution and advantageous effect
It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not intended to limit the present invention
Protection domain, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (4)
1. a kind of auxiliary device of conveying lightweight oil-piping, including pedestal (1) is provided with support plate (2) on the pedestal (1),
It is characterized in that, the supporting rod (8) that is provided on pedestal (1) between support plate (2) and being located at the supporting rod (8)
Between rolling groove (7), the upper surface of the rolling groove (7) is circular arc concave surface, and rolling groove (7) is about two supporting rod (8) institutes
Plane it is symmetrical, rolling groove (7) is more than the height at rolling groove (7) center close to the height of support plate (2), on rolling groove (7)
Several screw holes (15) are provided with, further include limiting plate (9) and the bolt (14) to match with screw hole (15), the bolt
(14) lower end through limiting plate (9) and is inserted into screw hole (15), and limiting plate (9) bottom surface matches with rolling groove (7) upper surface,
The connecting plate (12) of rotation axis (11) and the undercut shape around rotation axis (11) rotation is additionally provided between supporting rod (8),
It is provided with rotating roller (13) and shaft in the groove of connecting plate (12) lower end, rotating roller (13) rotates around the axis, rotating roller
(13) it is rolled along the upper surface of rolling groove (7), connecting plate (12) upper end is fixed with pipe-line tank (3), is provided in pipe-line tank (3) defeated
The both sides of oil pipe (4), connecting plate (12) are fixed with the side plate perpendicular to connecting plate (12), the positive upper and lower difference of the side plate
It is provided with overhead gage (5) and lower baffle plate (6), the overhead gage (5) and lower baffle plate (6) are installed in support plate (2), the side
It is provided with several springs (10) between plate and overhead gage (5), several springs are also equipped between the side plate and lower baffle plate (6)
(10)。
2. a kind of auxiliary device of conveying lightweight oil-piping according to claim 1, which is characterized in that the limiting plate
(9) it is two pieces, and symmetrical about the plane where two supporting rods (8).
3. a kind of auxiliary device of conveying lightweight oil-piping according to claim 1, which is characterized in that the pipe-line tank
(3) inside is provided with anti-skidding salient point, and the material of the anti-skidding salient point is nitrile rubber.
4. it is according to claim 1 it is a kind of conveying lightweight oil-piping auxiliary device, which is characterized in that the side plate with it is upper
The distance between baffle (5) is 20~30 centimetres, and the distance between the side plate and lower baffle plate (6) are 20~30 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610603477.8A CN106247021B (en) | 2016-07-28 | 2016-07-28 | A kind of auxiliary device of conveying lightweight oil-piping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610603477.8A CN106247021B (en) | 2016-07-28 | 2016-07-28 | A kind of auxiliary device of conveying lightweight oil-piping |
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| Publication Number | Publication Date |
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| CN106247021A CN106247021A (en) | 2016-12-21 |
| CN106247021B true CN106247021B (en) | 2018-11-02 |
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| CN201610603477.8A Active CN106247021B (en) | 2016-07-28 | 2016-07-28 | A kind of auxiliary device of conveying lightweight oil-piping |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107098103A (en) * | 2017-04-18 | 2017-08-29 | 成都乔依赛斯石油科技有限公司 | Oil storage device is horizontal to use moving assembly |
| CN107061870A (en) * | 2017-04-20 | 2017-08-18 | 成都亨通兆业精密机械有限公司 | A kind of pipeline dynamic support system pumped for oil gas |
| CN108006322A (en) * | 2017-12-14 | 2018-05-08 | 张荣银 | A kind of supporting rack that can adjust height of petroleum pipeline installation |
| CN108331971B (en) * | 2018-01-30 | 2018-11-13 | 刘凤云 | A kind of highway bridge pipeline support equipment |
| CN110918310B (en) * | 2019-11-30 | 2020-12-01 | 盐城市权航科技有限公司 | A anticorrosive device that spouts of scribbling for urban construction water supply pipe |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3830108C2 (en) * | 1988-09-05 | 1993-11-18 | Oelsch Fernsteuergeraete | Inclinometer |
| US20070246116A1 (en) * | 2006-04-21 | 2007-10-25 | Peak B David | Drainage pipe slope measuring device |
| CN103423515A (en) * | 2013-08-01 | 2013-12-04 | 黄平 | Circular tube clamping sleeve |
| CN203757191U (en) * | 2014-04-11 | 2014-08-06 | 辽河石油勘探局 | Large-diameter oil-gas pipeline rolling supporting device |
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| CN106247021A (en) | 2016-12-21 |
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Effective date of registration: 20180921 Address after: 610000 Rong Ou, 144 Qingbaijiang Road, Chengdu, Sichuan. Applicant after: Chengdu Zhi Rong Chuang Intellectual Property Operation Co., Ltd. Address before: 610000 Jianshe Road, Chengdu, Chengdu, Sichuan Province, No. 56 Applicant before: The Chengdu general petroleum works technology of height Co., Ltd |
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