CN109163147A - Hydraulic engineering piping facility and its hydraulic engineering pipeline support frame - Google Patents
Hydraulic engineering piping facility and its hydraulic engineering pipeline support frame Download PDFInfo
- Publication number
- CN109163147A CN109163147A CN201811325043.1A CN201811325043A CN109163147A CN 109163147 A CN109163147 A CN 109163147A CN 201811325043 A CN201811325043 A CN 201811325043A CN 109163147 A CN109163147 A CN 109163147A
- Authority
- CN
- China
- Prior art keywords
- hydraulic engineering
- limit plate
- bulb
- support frame
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- F16L3/1091—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
-
- 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
Abstract
The present invention relates to a kind of hydraulic engineering piping facility and its hydraulic engineering pipeline support frames.The pedestal of support frame of the invention is an integral structure, in the construction process, first pedestal can be fixed on the ground, then in the spherical accommodating chamber being again mounted on the base the bulb on connection frame, bulb is limited finally by limit plate, thus by bulb to lower limit in spherical accommodating chamber, thus pedestal and bulb can separately be constructed, turn with convenient, simultaneously, it is limited due to pedestal using integral structure and by limit plate, improve the structural stability of pedestal, solve the problems, such as that existing bracket is poor using stability caused by separate structure because of pedestal.
Description
Technical field
The present invention relates to a kind of hydraulic engineering piping facility and its hydraulic engineering pipeline support frames.
Background technique
Hydraulic engineering pipeline needs to carry out in process of deployment the fixation of pipeline using corresponding bracket or hanger, wherein
Bracket is normally applied on the ground, and hanger then needs to be installed by means of wall or building.
Some use fixing hoop structure to bracket in the prior art, if Authorization Notice No. is in 207921480 U of CN
A kind of fixing hoop for the fixed multi-pipeline for being embedded in underground, the utility model disclosed in state's patent document disclose a kind of use
In the fixing hoop of the fixed multi-pipeline for being embedded in underground, including substrate, the substrate is equipped with sliding rail, installs on sliding rail several
A clip body, the clip body can slide along sliding rail and lock its position on the slide rail by the first locking assembly；Described is every
A clip body includes clip pedestal and snap ring, and the snap ring is Ω type structure, and one end and one end of clip pedestal are hinged, another
End is fixed on the other end of clip pedestal by the second locking assembly；There is the arc cooperated with pipeline arc on the clip pedestal
Connected in star, opens up blind hole immediately below the arc groove, and blind hole is provided with Buffer Unit, and the Buffer Unit is to being fixed on snap ring
The external force that interior pipeline is subject to is buffered.This clip can the pipeline parallel to the multiple tracks for being embedded in underground be fixed, precisely
It adjusts, the preferable fixed pipeline being parallel to each other, this structure overcomes pipeline to cause deformation is even damaged to ask because receiving external force
Topic assists the service life for improving pipeline.The bracket of this structure has the following problems: pipeline is in use due to ground
Sedimentation and displacement can make pipeline occur certain angle deflection, using clip hold tightly pipeline after, during deflection, due to bracket
For rigid structure, deflection can not be adapted to, so that bracket and pipeline will receive biggish active force.
In the prior art there are also a type of support of pipelines, the China if Authorization Notice No. is 207486216 U of CN is special
A kind of petrochemical pipe bracket disclosed in sharp document, comprising: pedestal, sphere, connector and support.Pedestal is provided with upper end
The lower part of the sphere accommodating chamber of opening, sphere is arranged in sphere accommodating chamber, and the top of sphere passes through the company of connector and support
It connecing, petrochemical pipe is placed on the top of support, so that when the stress between pipeline and support increases or stress concentration occurs,
Sphere can roll in the sphere accommodating chamber of pedestal, that is, can be along each according to the petroleum pipeline bracket of exemplary embodiment
Direction adjusting position extends the service life of pipeline so that the stress for eliminating bracket and petroleum pipeline is concentrated.Meanwhile above
Support be equipped with vibration-absorptive material with tube contacts, for the active force between buffering pipe and support.The branch of this structure
The pedestal of frame is separate structure, including two pedestal fissions, and two pedestal fissions carry out sphere by way of mutually fastening
Limit, sphere can not be deviate from from the accommodating chamber on pedestal after two pedestal fissions fasten installation, therefore need in the construction process
First the sphere of the seperated upside of two pedestals to be assembled, the problem for causing assembly inconvenient, and pedestal is using seperated knot
Structure, in use its mainly the active force downward and lateral by sphere, such active force will cause separate structure
Pedestal has the risk disengaged, causes the problem of support stability difference.
Summary of the invention
The present invention provides a kind of hydraulic engineering pipeline support frame, to solve existing support of pipelines because pedestal is using seperated knot
It is constructed of the problem of assembly inconvenience, stability difference；Meanwhile above-mentioned hydraulic engineering pipeline support is used the present invention also provides a kind of
The hydraulic engineering piping facility of frame.
Hydraulic engineering piping facility of the invention adopts the following technical scheme that
Hydraulic engineering pipeline support frame is connect including the connection frame for connecting with hydraulic engineering pipeline and with the connection frame
And the pedestal for fixing on the ground, the pedestal are equipped with spherical accommodating chamber, the connection frame is equipped with and the spherical shape
The bulb that accommodating chamber is rotatably assorted, the pedestal are an integral structure, and the spherical shape accommodating chamber is less than or equal to hemispherical
Structure, the pedestal be equipped with limit hole limit plate, the limit plate be sleeved on the outside of the bulb and with institute
It states bulb to cooperate to lower limit, by the bulb to lower limit in the spherical accommodating chamber.
The arc lube plate being slidably matched with the bulb is equipped in the spherical shape accommodating chamber.
Elastic buffering pad is equipped between the arc lube plate and the cavity wall of the spherical accommodating chamber.
At least one side of the elastic buffering pad is equipped with protrusion.
The downside of the limit plate and the upside of the arc lube plate limit cooperation, the elastic buffering pad downwards
Upper side and the limit plate interval be arranged, interval between the upper side of elastic buffering pad and the limit plate forms and is used for
For the deformation space of elastic buffering pad deformation.
The limit plate includes limit plate ontology and the sliding part that is slidably matched with the bulb, the limit plate ontology
It is equipped with the throat structure of big mouth down, the limit plate ontology presses downwards limit by the throat structure and the sliding part
Position cooperation.
The limit plate includes two limit plate halfbodies, and two limit plate halfbodies mutually fasten rear enclosure mounted in the bulb
On.
Two limit plate halfbodies are bolted on the pedestal.
Hydraulic engineering pipeline support frame of the invention adopts the following technical scheme that
Hydraulic engineering piping facility, including hydraulic engineering pipeline and the support frame being arranged on the hydraulic engineering pipeline, branch
Support includes connection frame for connecting with hydraulic engineering pipeline and connect with the connection frame and be used to fix on the ground
Pedestal, the pedestal is equipped with spherical accommodating chamber, and the connection frame is equipped with the ball being rotatably assorted with the spherical accommodating chamber
Head, the pedestal are an integral structure, and the spherical shape accommodating chamber is to be set on the pedestal less than or equal to hemispheric structure
There is the limit plate with limit hole, the limit plate is sleeved on the outside of the bulb and cooperates with the bulb to lower limit,
With by the bulb to lower limit in the spherical accommodating chamber.
The arc lube plate being slidably matched with the bulb is equipped in the spherical shape accommodating chamber.
Elastic buffering pad is equipped between the arc lube plate and the cavity wall of the spherical accommodating chamber.
At least one side of the elastic buffering pad is equipped with protrusion.
The downside of the limit plate and the upside of the arc lube plate limit cooperation, the elastic buffering pad downwards
Upper side and the limit plate interval be arranged, interval between the upper side of elastic buffering pad and the limit plate forms and is used for
For the deformation space of elastic buffering pad deformation.
The limit plate includes limit plate ontology and the sliding part that is slidably matched with the bulb, the limit plate ontology
It is equipped with the throat structure of big mouth down, the limit plate ontology presses downwards limit by the throat structure and the sliding part
Position cooperation.
The limit plate includes two limit plate halfbodies, and two limit plate halfbodies mutually fasten rear enclosure mounted in the bulb
On.
Two limit plate halfbodies are bolted on the pedestal.
It, in the construction process, can be with the beneficial effects of the present invention are: the pedestal of support frame of the invention is an integral structure
First pedestal is fixed on the ground, in the spherical accommodating chamber for being then again mounted on the base the bulb on connection frame, is finally led to
Limit plate is crossed to limit bulb, thus by bulb to lower limit in spherical accommodating chamber, it thus can be by pedestal and ball
Head separately construction, it is convenient to turn to match, simultaneously as pedestal is limited using integral structure and by limit plate, improves pedestal
Structural stability solves the problems, such as that existing bracket is poor using stability caused by separate structure because of pedestal.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the structural representation of the hydraulic engineering pipeline support frame in the embodiment of hydraulic engineering piping facility of the invention
Figure；
Fig. 2 is the structural schematic diagram of the limit plate halfbody in Fig. 1；
Fig. 3 is the structural schematic diagram of the elastic buffering pad in Fig. 1；
Fig. 4 is schematic diagram when hydraulic engineering piping facility of the invention uses；
In figure: 10, support frame；20, hydraulic engineering pipeline；1, pedestal；2, elastic buffering pad；3, arc lube plate；4, limit plate；
5, sliding part；6, bulb；7, connection frame；8, position-limited rack；41, limit plate installs bolt；42, limit plate mounting hole；21, deformation is empty
Between；22, the first protrusion；23, the second protrusion；81, position-limited rack installs bolt.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of hydraulic engineering piping facility of the invention, as shown in Figures 1 to 4, hydraulic engineering piping facility, including
Hydraulic engineering pipeline 20 and the support frame 10 being arranged on hydraulic engineering pipeline 20, support frame 10 include being used for and hydraulic engineering
The connection frame 7 that pipeline 20 connects and the pedestal 1 for connecting with connection frame 7 and being used to fix on the ground, pedestal 1 are equipped with spherical shape
Accommodating chamber, connection frame 7 are equipped with the bulb 6 being rotatably assorted with spherical accommodating chamber, and pedestal 1 is an integral structure, spherical accommodating chamber
For less than or equal to hemispheric structure, pedestal 1 is equipped with the limit plate 4 with limit hole, and limit plate 4 is sleeved on bulb 6
Outside and with bulb 6 to lower limit cooperate, by bulb 6 to lower limit in spherical accommodating chamber.In the present embodiment, it connects
Frame 7 and bulb are connected, and for the stability for guaranteeing structure, the two is directly wholely set, and connection frame 7 is equipped with groove, Pipe installing
In the groove, the upper surface of connection frame is equipped with position-limited rack 8, and locating part 8 is installed bolt 81 by position-limited rack and connect with connection frame, and two
Pipeline is fixed after person's connection, the effect for functioning as a hoop of this part.
After bulb is mounted in spherical lubricating cavity, it is fixed to lower limit by limit plate, avoids bulb from the spherical shape
Deviate from lubricating cavity, in order to guarantee that limit plate can provide bulb reliable limit, needs to guarantee that limit plate is in bulb
Upper half ball portion.
In order to guarantee bulb and smoothness during rotation, in the present embodiment, in spherical accommodating chamber setting with
The arc lube plate 3 that bulb 6 is slidably matched, the material about arc lube plate can use existing solid self lubricant material,
Such as polytetrafluoroethylene (PTFE), graphite, nylon or other fixation self-lubricating materials.
In use, different degrees of vibration can be generated to pipeline by being protected from environmental, this vibration can make pipeline with
Active force is generated between connection frame, influences the stability and pipeline life of support frame, therefore, in order to avoid the production of above situation
It is raw, elastic buffering pad 2 is set between arc lube plate 3 and the cavity wall of spherical accommodating chamber.When pipeline receives vibration, active force
It is transmitted on elastic buffering pad by connection frame, elastic buffering pad is enabled to eliminate these shaking forces.Elastic buffering pad is specific
Material can use rubber material or other flexible materials.
In order to guarantee that elastic buffering pad can be deformed effectively, elastic buffering pad is arranged to structure as shown in Figure 3, elasticity
At least one side of cushion 2 is equipped with protrusion, specifically, inside and outside be equipped with protrusion on face, be specially arranged outside
First protrusion 22 and the second protrusion 23 being arranged on medial surface on side.It is convex in order to further improve deformability, first
It rises and the second protrusion is staggered in the circumferential.
The downside of limit plate 4 and the upside of arc lube plate 3 limit cooperation, the upper side of elastic buffering pad 2 downwards
It is spaced and is arranged with limit plate 4, the interval between the upper side and limit plate 4 of elastic buffering pad 2 is formed for for elastic buffering pad 2
The deformation space 21 of deformation.Arc lube plate can be limited by limit plate in this way, without other limit knots
Structure keeps support frame structure simple.
Limit plate 4 includes limit plate ontology and the sliding part 5 being slidably matched with bulb 6, and limit plate ontology is equipped with big
The throat structure of mouth down, limit plate ontology pass through throat structure and the cooperation of press limit downwards of sliding part 5.Limit plate passes through contracting
Mouth structure can carry out press-fit to sliding part, and structure is simple, limit fixed reliable.The material of sliding part 5 uses solid
Self-lubricating material, such as polytetrafluoroethylene (PTFE), graphite, nylon or other fixation self-lubricating materials.
In the present embodiment, limit plate includes two limit plate halfbodies, and two limit plate halfbodies mutually fasten rear enclosure and are mounted in
On bulb 6.Two limit plate halfbodies easily can be fastened into rear enclosure on bulb during the installation process in this way.Specifically
Ground, limit plate are equipped with limit plate mounting hole 42, and two limit plate halfbodies install bolt 81 by position-limited rack and are fixed on pedestal 1
On.
The pedestal of support frame of the invention is an integral structure, and in the construction process, pedestal first can be fixed on ground
On, in the spherical accommodating chamber that is then again mounted on the base the bulb on connection frame, bulb is carried out finally by limit plate
Limit turns formula to thus pedestal and bulb can separately be constructed by bulb to lower limit in spherical accommodating chamber
Just, simultaneously as pedestal is limited using integral structure and by limit plate, the structural stability of pedestal is improved, is solved
Existing bracket is because pedestal is using the problem of stability difference caused by separate structure.
In other embodiments of the invention, bulb and connection frame releasable connection, such limit plate can be set as whole
Limit plate is attached on bulb in installation process by body structure from the top of bulb set；Profit can also be set in spherical accommodating chamber
Consistent lubricant or lubricating oil lubricate；Elastic buffering pad can also be directly disposed as waveform, can also have good change in this way
Shape effect；Limit plate can using whole installation as solid self lubricant material, or between limit plate and bulb be arranged lubricating grease,
Lubricating oil lubricates to realize.
The embodiment of hydraulic engineering pipeline support frame of the invention, the hydraulic engineering pipeline support frame and above-mentioned water conservancy work
The structure of hydraulic engineering pipeline support frame in the implementation of journey piping facility is identical, repeats no more.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. hydraulic engineering pipeline support frame connects including the connection frame for connecting with hydraulic engineering pipeline and with the connection frame
The pedestal for connecing and being used to fix on the ground, the pedestal are equipped with spherical accommodating chamber, and the connection frame is equipped with and the ball
The bulb that shape accommodating chamber is rotatably assorted, it is characterised in that: the pedestal is an integral structure, it is described spherical shape accommodating chamber be less than or
Person is equal to hemispheric structure, and the pedestal is equipped with the limit plate with limit hole, and the limit plate is sleeved on the bulb
Outside and cooperate with the bulb to lower limit, by the bulb to lower limit in the spherical accommodating chamber.
2. hydraulic engineering pipeline support frame according to claim 1, it is characterised in that: it is described spherical shape accommodating chamber in be equipped with
The arc lube plate that the bulb is slidably matched.
3. hydraulic engineering pipeline support frame according to claim 2, it is characterised in that: the arc lube plate and the ball
Elastic buffering pad is equipped between the cavity wall of shape accommodating chamber.
4. hydraulic engineering pipeline support frame according to claim 3, it is characterised in that: at least the one of the elastic buffering pad
Side is equipped with protrusion.
5. hydraulic engineering pipeline support frame according to claim 3 or 4, it is characterised in that: the downside of the limit plate
Cooperation is limited downwards with the upside of the arc lube plate, and the upper side of the elastic buffering pad is set with the limit plate interval
It sets, the interval between the upper side of elastic buffering pad and the limit plate is formed for the deformation for elastic buffering pad deformation
Space.
6. hydraulic engineering pipeline support frame according to claim 5, it is characterised in that: the limit plate includes limit plate sheet
Body and the sliding part being slidably matched with the bulb, the limit plate ontology is equipped with the throat structure of big mouth down, described
Limit plate ontology presses downwards limit cooperation by the throat structure and the sliding part.
7. hydraulic engineering pipeline support frame described in any one of -4 according to claim 1, it is characterised in that: the limit plate
Including two limit plate halfbodies, two limit plate halfbodies mutually fasten rear enclosure on the bulb.
8. hydraulic engineering pipeline support frame according to claim 7, it is characterised in that: two limit plate halfbodies pass through bolt
It fixes on the base.
9. hydraulic engineering piping facility, including hydraulic engineering pipeline and the support frame being arranged on the hydraulic engineering pipeline,
Support frame as described above is the hydraulic engineering pipeline support frame as described in any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811325043.1A CN109163147A (en) | 2018-11-08 | 2018-11-08 | Hydraulic engineering piping facility and its hydraulic engineering pipeline support frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811325043.1A CN109163147A (en) | 2018-11-08 | 2018-11-08 | Hydraulic engineering piping facility and its hydraulic engineering pipeline support frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109163147A true CN109163147A (en) | 2019-01-08 |
Family
ID=64875733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811325043.1A Pending CN109163147A (en) | 2018-11-08 | 2018-11-08 | Hydraulic engineering piping facility and its hydraulic engineering pipeline support frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109163147A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798323A (en) * | 2019-03-22 | 2019-05-24 | 中国核电工程有限公司 | A kind of support device and storage system |
| CN114413071A (en) * | 2021-12-30 | 2022-04-29 | 上海科华热力管道有限公司 | Method for locking and supporting high-temperature steam pipeline based on universal bracket |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU522370A1 (en) * | 1974-11-18 | 1976-07-25 | Pipeline support | |
| SU709898A2 (en) * | 1976-05-25 | 1980-01-15 | Всесоюзный Институт По Проектированию Объектов Газовой Промышленности "Союзгазпроект" | Above/ground pipeline free-movable support |
| CN205261031U (en) * | 2015-12-16 | 2016-05-25 | 天津京银泰科技发展有限公司 | Adjustable pipe strap structure with damping function |
| CN205533752U (en) * | 2016-01-21 | 2016-08-31 | 河南省大方重型机器有限公司 | Ball pivot strutting arrangement |
| CN205663993U (en) * | 2016-06-03 | 2016-10-26 | 台州枫叶船业有限公司 | Pipe gallows for boats and ships of moving away to avoid possible earthquakes |
| CN207486234U (en) * | 2017-09-12 | 2018-06-12 | 苏州诺力达工程技术服务有限公司 | A kind of petroleum pipeline supporting rack |
-
2018
- 2018-11-08 CN CN201811325043.1A patent/CN109163147A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU522370A1 (en) * | 1974-11-18 | 1976-07-25 | Pipeline support | |
| SU709898A2 (en) * | 1976-05-25 | 1980-01-15 | Всесоюзный Институт По Проектированию Объектов Газовой Промышленности "Союзгазпроект" | Above/ground pipeline free-movable support |
| CN205261031U (en) * | 2015-12-16 | 2016-05-25 | 天津京银泰科技发展有限公司 | Adjustable pipe strap structure with damping function |
| CN205533752U (en) * | 2016-01-21 | 2016-08-31 | 河南省大方重型机器有限公司 | Ball pivot strutting arrangement |
| CN205663993U (en) * | 2016-06-03 | 2016-10-26 | 台州枫叶船业有限公司 | Pipe gallows for boats and ships of moving away to avoid possible earthquakes |
| CN207486234U (en) * | 2017-09-12 | 2018-06-12 | 苏州诺力达工程技术服务有限公司 | A kind of petroleum pipeline supporting rack |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798323A (en) * | 2019-03-22 | 2019-05-24 | 中国核电工程有限公司 | A kind of support device and storage system |
| CN114413071A (en) * | 2021-12-30 | 2022-04-29 | 上海科华热力管道有限公司 | Method for locking and supporting high-temperature steam pipeline based on universal bracket |
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Application publication date: 20190108 |
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