CN105465534B - One kind is used for pipe vibration and controls hot loading device - Google Patents
One kind is used for pipe vibration and controls hot loading device Download PDFInfo
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- CN105465534B CN105465534B CN201610005601.0A CN201610005601A CN105465534B CN 105465534 B CN105465534 B CN 105465534B CN 201610005601 A CN201610005601 A CN 201610005601A CN 105465534 B CN105465534 B CN 105465534B
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- pipeline
- screw rod
- pipe
- loading device
- rotating shaft
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
- Vibration Prevention Devices (AREA)
Abstract
One kind is used for pipe vibration and controls hot loading device, for pipeline, pipe clamp is fixed with pipeline, including two loading devices positioned at pipeline both sides, single loading device includes base, limit pull rod and the guide pad being sequentially connected, the left side of the base is fixed, and the right side of base is provided with base hanger；Limit pull rod is set parallel with pipeline, limit pull rod includes sleeve, the left and right ends of sleeve are threaded with left screw rod and right screw rod respectively, left screw rod and right screw flight are oppositely oriented, and the left end of left screw rod is provided with rotating shaft, and rotating shaft is hinged through the formation of base hanger, can need hot loading when flexibly and easily adjusting yoke screw thread under the conditions of mediate contact pipeline, improve the rigidity of pipe-line system, effectively reduction pipe vibration amplitude, the safety in operation of raising pipeline.
Description
Technical field
The present invention relates to pipe vibration Treatment process, it is especially adapted for use in dynamic in the various industrial systems such as electric power, petrochemical industry
The loading device of hydraulic piping and industrial pipeline.
Background technology
There is data to show, more than 80% pipeline has oscillation phenomenon in the process of running, and the weight simply vibrated is not
Together.
The reason for usual pipe vibration, is complex, and the excited frequency of pipeline fluid is consistent with the intrinsic frequency of pipeline to be caused
The generation of pipe vibration.More basic solution is such as：Change the sides such as pipeline arrangement, the size for changing pipeline, reduction parameter
Formula is often infeasible on the pipeline of operation.
The method for generally administering pipe vibration is the rigidity for changing pipeline by way of increasing pipe-hanger support, so as to carry
The intrinsic frequency of high pipeline.And the mode for increasing pipe-hanger support needs to recalculate the stress of pipeline, checks pipe-line equipment
End points thrust, just can guarantee that the stress of pipeline meets the requirement of corresponding specification, end points thrust is within the allowed band of equipment.
Another mode is typically increase damper.Damper is not although influence the secondary stress and end points of pipeline to push away
Power, but its vibrating effect to frequency low-amplitude, amplitude low-frequency pipeline is not ideal enough, and it is present that cost is higher, frequent oil leak
Etc. intrinsic problem, thus find it is a kind of simple in construction and can device that effectively control pipeline is vibrated into current improvement pipe Vibration
Dynamic key problem in technology.
The content of the invention
It is used for pipe vibration it is an object of the invention to provide one kind and controls hot loading device, for thermal power plant's high temperature
Pressure piping Vibration Treatment, substantially reduces pipeline abnormal vibrations risk.
The technical scheme is that：
One kind is used for pipe vibration and controls hot loading device, and for pipeline, pipe clamp is fixed with pipeline, including positioned at pipe
Two loading devices of road both sides, single loading device includes base, limit pull rod and the guide pad being sequentially connected, the base
Left side fix, the right side of base is provided with base hanger；Limit pull rod is set parallel with pipeline, and limit pull rod includes sleeve, set
The left and right ends of cylinder are threaded with left screw rod and right screw rod respectively, and left screw rod and right screw flight are oppositely oriented, left screw rod
Left end be provided with rotating shaft, rotating shaft through base hanger formation be hinged, the center line of rotating shaft and the central axis of pipeline, guide pad
Middle part be provided with pilot hole, pilot hole is through hole, right screw rod pass through pilot hole, the outer right-hand member end of right screw rod is connected with locking
Nut, locking nut is pressed against on the right side side of guide pad, and the bottom of guide pad is fixedly connected with pipe clamp.
Two loading devices are symmetrical arranged on pipeline.
The pipe clamp is the spacing pipe clamp of biradial；The middle part of sleeve is provided with perforation.
The center of limit pull rod is to the centerline parallel with pipeline.
One kind is used for pipe vibration and controls hot loading device, and for pipeline, pipe clamp is fixed with pipeline, including positioned at pipe
Two loading devices of road both sides, single loading device includes base, limit pull rod and the guide pad being sequentially connected, the base
Left side fix, the right side of base is provided with base hanger, and limit pull rod is set parallel with pipeline, and limit pull rod includes sleeve, covers
The left and right ends of cylinder are threaded with left screw rod and right screw rod respectively, and left screw rod and right screw flight are oppositely oriented, left screw rod
Left end be provided with first rotating shaft, rotating shaft through base hanger formation be hinged, the center line of rotating shaft and the central axis of pipeline are led
Pilot hole is provided with to the middle part of block, pilot hole is through hole, right screw rod passes through pilot hole, the outer right-hand member of right screw rod is fixedly connected with
Outside on the left clasp of closing, pipe clamp is provided with fixed block, and outer side and the right clasp of fixed block are provided with the second rotating shaft, right button
Ring passes through left clasp, forms chain structure.
Two loading devices are symmetrical arranged on pipeline.
The pipe clamp is the spacing pipe clamp of biradial.
The center of limit pull rod is to the centerline parallel with pipeline.
First rotating shaft is vertical with the second rotating shaft；In pipeline in the radial direction, there is spacing between limit pull rod and pipe clamp.
Apparatus of the present invention are simple in construction, easy to implement, easy and effective.
Apparatus of the present invention are in order to solve the above problems, and the concept of the hot loading of proposition simultaneously designs pipe vibration control device,
Influence will not be not only produced on pipe stress and simple in construction, be not required to safeguard substantially, cost is low, and Vibration Treatment effect is extremely
It is preferable.
The present invention is used for thermal power plant's high-temperature and pressure pipeline Vibration Treatment, and method is simple, easy to implement, and regulation effect is good, behaviour
Make controllability good.It is unadjustable and brought to pipeline that the hot loading device of vibration control of design changes Conventional limit device
The shortcomings of additional stress, can need hot loading when flexibly and easily adjusting yoke screw thread in mediate contact pipeline condition
Under, improve the rigidity of pipe-line system, effectively reduction pipe vibration amplitude, the safety in operation of raising pipeline.And vibration control heat
The easily fabricated processing of state loading device, can avoid bringing pipeline additional stress, can substantially reduce pipeline abnormal vibrations risk.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is the schematic diagram of limit pull rod；
Fig. 3 is the structural representation of the embodiment of the present invention two.
Embodiment
As shown in Figure 1, 2, one kind of the invention is used for the hot loading device of pipe vibration control, for pipeline 10, pipeline
Pipe clamp 11 is fixed with 10.Pipe clamp is the spacing pipe clamp of biradial.
Embodiment one, the present invention includes two loading devices positioned at pipeline both sides, and two loading devices are on pipeline 10
It is symmetrical arranged.
Single loading device includes base 1, limit pull rod 2 and the guide pad 3 being sequentially connected, and the left side of base 1 is fixed on
On wall or the support of fixation, the right side of base 1 is provided with base hanger 4；Limit pull rod 2 is set parallel with pipeline, spacing to draw
Bar 2 includes sleeve 5, and the left and right ends of sleeve 5 are threaded with left screw rod 6 and right screw rod 7 respectively, and the left end of left screw rod 6 is provided with
First rotating shaft 8, rotating shaft 8 is hinged through the formation of base hanger 4, the center line of rotating shaft 8 and the central axis of pipeline 10, left screw rod
6 and right screw rod 7 it is oppositely oriented, rotational sleeve 5 can simultaneously inwardly or outwardly rotate left screw rod 6 and right screw rod 7, it is rectangular
The middle part of guide pad 3 is provided with pilot hole 9, and pilot hole 9 is through hole, and right screw rod 7 passes through pilot hole 9.
The outer right-hand member end of right screw rod 7 is connected with multiple locking nuts 12, and locking nut 12 is pressed against the right side of guide pad 3
On the side of side, the bottom of guide pad 3 is fixedly connected with pipe clamp 11.The center of sleeve 5 and limit pull rod is to the center with pipeline 10
Line is parallel.
Embodiment two
As shown in figure 3, being with the difference of embodiment one, the outer right-hand member of right screw rod 7 is fixedly connected with a left side for closing
Outside on clasp 13, pipe clamp 11 is provided with fixed block 16, and second turn is provided between the outer side of fixed block 16 and right clasp 14
Axle 15, formation is hinged, and right clasp 14 passes through left clasp 13, forms chain structure, chain structure is common structure, such as common
The iron hoop being sequentially connected constitutes an iron chain.Pipe clamp 11 can be pulled, vibration is prevented.The place face of right clasp 14 and left clasp
13 places face are vertical, and the place face of left clasp 13 and the centerline parallel of sleeve 5, first rotating shaft 8 are vertical with the second rotating shaft 15.It is right
Clasp 14 is pressed on the outer side of fixed block 16, in pipeline in the radial direction, between having between limit pull rod 2 and pipe clamp 11
Away from.
The present invention is, according to the Stress calculation analysis to pipeline and to the measurement result of live thermal expansion curve, to design one
Plant and can adjust at three, maximum possible is applied to the hot loading device of vibration control of the various installation situations at scene.Its maximum
Feature is the vibration that pipeline is effectively controlled in the case where not bringing any additional stress to pipeline.Vibration control heat
State loading device, by adding a minimum power, and then the vibration of control pipeline to pipeline in the maximum swelling value of pipeline.
Device characteristic：
1st, the root of device can be swung using being articulated and connected in different directions；
2nd, sleeve 5 and the screw thread member at two ends use the connecting mode of left-right rotary, and the centre of sleeve 5 is provided with circular hole, just
In regulation；
3rd, coupled between the screw thread member of sleeve 5 and limit pull rod 2 using right-hand thread；
4th, limit pull rod 2 is coordinated with guide pad 3 using gap（The external diameter of pilot hole in the middle part of guide pad is more than the outer of pull bar
Footpath）, it is ensured that pull bar can be carried out slidably between guide pad；
5th, guide pad 3 is fixed on by way of welding on the spacing pipe clamp 11 being installed on pipeline；
6th, each section of reach need to combine the calculating of pipe expansion displacement and the actual measured results at scene, particularly be oriented to
Screw thread in block 3 must assure that shut down and run two states under in guide pad, prevent screw thread to be stuck on guide pad 3.
The methods that pipe vibration is administered, pipe vibration is administered using the method for the hot special stopping means of loading.Tool
Body implementation steps are as follows：
First, on-the-spot test pipe vibration situation, analysis conduit vibration characteristics；
2nd, the eigenfrequncies and vibration models of piping are calculated, analyzed, determining using finite element software CaesarII；
3rd, pipe vibration and the vibration shape are compared, vibration control scheme, such as pipe vibration control device are formulated with reference to field condition
Position, quantity.
4th, site operation is installed.
5th, conduit running is steady, and swell increment is reached after maximum, adjusts special limit pull rod length to correct position, treats pipe
Road vibration reaches that the moment of peak value tightens locking nut.
The present invention is used for thermal power plant's high-temperature and pressure pipeline Vibration Treatment, and method is simple, easy to implement, and regulation effect is good, behaviour
Make controllability good.It is unadjustable and brought to pipeline that the hot loading device of vibration control of design changes Conventional limit device
The shortcomings of additional stress, can need hot loading when flexibly and easily adjusting yoke screw thread in mediate contact pipeline condition
Under, improve the rigidity of pipe-line system, effectively reduction pipe vibration amplitude, the safety in operation of raising pipeline.And vibration control heat
The easily fabricated processing of state loading device, can avoid bringing pipeline additional stress, can substantially reduce pipeline abnormal vibrations risk.
Disclosed above is only the specific implementation example of the present invention, but the present invention is not limited to this, any ability
What the technical staff in domain can think change, without departing from scope described in appended claims, should all fall the guarantor in the present invention
Within the scope of shield.
Claims (5)
1. one kind, which is used for pipe vibration, controls hot loading device, for pipeline, pipe clamp is fixed with pipeline, it is characterised in that：
Including two loading devices positioned at pipeline both sides, single loading device includes base, limit pull rod and the guiding being sequentially connected
Block, the left side of the base is fixed, and the right side of base is provided with base hanger, and limit pull rod is set parallel with pipeline, limit pull rod
Including sleeve, the left and right ends of sleeve are threaded with left screw rod and right screw rod, left screw rod and right screw flight rotation direction respectively
On the contrary, the left end of left screw rod be provided with first rotating shaft, first rotating shaft through base hanger formation be hinged, the center line of first rotating shaft with
The central axis of pipeline, the middle part of guide pad is provided with pilot hole, and pilot hole is through hole, and right screw rod passes through pilot hole, right screw rod
The outside that outer right-hand member is fixedly connected with the left clasp of closing, pipe clamp is provided with fixed block, outer side and the right side of fixed block
The second rotating shaft is provided between clasp, right clasp passes through left clasp, forms chain structure；The bottom of the guide pad is fixed with pipe clamp
Connection.
2. a kind of pipe vibration that is used for according to claim 1 controls hot loading device, it is characterised in that：Two loadings
Device is symmetrical arranged on pipeline.
3. a kind of pipe vibration that is used for according to claim 1 controls hot loading device, it is characterised in that：The pipe clamp
For the spacing pipe clamp of biradial.
4. a kind of pipe vibration that is used for according to claim 1 controls hot loading device, it is characterised in that：Limit pull rod
Center line and pipeline centerline parallel.
5. a kind of pipe vibration that is used for according to claim 1 controls hot loading device, it is characterised in that：First rotating shaft
It is vertical with the second rotating shaft；In pipeline in the radial direction, there is spacing between limit pull rod and pipe clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005601.0A CN105465534B (en) | 2016-01-07 | 2016-01-07 | One kind is used for pipe vibration and controls hot loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005601.0A CN105465534B (en) | 2016-01-07 | 2016-01-07 | One kind is used for pipe vibration and controls hot loading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105465534A CN105465534A (en) | 2016-04-06 |
| CN105465534B true CN105465534B (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610005601.0A Active CN105465534B (en) | 2016-01-07 | 2016-01-07 | One kind is used for pipe vibration and controls hot loading device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748702B (en) * | 2019-10-30 | 2021-05-28 | 广船国际有限公司 | Reinforced structure arrangement method of ship pipeline system |
| CN112833273B (en) * | 2021-01-19 | 2022-03-29 | 中石化中原石油工程设计有限公司 | Resonance control device for buffer tank of compressor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB565186A (en) * | 1942-03-09 | 1944-10-31 | Gen Spring Corp | Improvements in or relating to devices for supporting and bracing pipe lines |
| CA2592684C (en) * | 2004-12-30 | 2017-01-03 | Car-Ber Investments Inc. | Method and apparatus for applying axial stress for weld testing |
| CN202674552U (en) * | 2012-07-04 | 2013-01-16 | 厦门嘉达声学技术工程有限公司 | Pipe vibration isolation structure |
| CN103234083B (en) * | 2013-05-14 | 2015-08-05 | 张倩秋 | A kind of large diameter pipeline annular floating formula thrust frame |
| CN205350694U (en) * | 2016-01-07 | 2016-06-29 | 国网河南省电力公司电力科学研究院 | Pipeline vibration controls hot loading device |
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| CN105465534A (en) | 2016-04-06 |
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| CB03 | Change of inventor or designer information |
Inventor after: Ma Dongfang Inventor after: Cai Hongsheng Inventor after: Li Shitao Inventor after: Yang Xu Inventor after: Zhao Yongfeng Inventor after: Wu Kehua Inventor after: Wei Quanquan Inventor after: Li Yanjun Inventor after: Chen Yan Inventor after: Niu Yujing Inventor after: Zhang Liubin Inventor after: Xu Liang Inventor after: Zhou Shukang Inventor before: Ma Dongfang Inventor before: Wei Quanquan Inventor before: Wu Kehua Inventor before: Cai Hongsheng Inventor before: Li Shitao Inventor before: Zhang Liubin Inventor before: Zhou Shukang Inventor before: Niu Yujing Inventor before: Zhao Yongfeng Inventor before: Yang Xu |
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Address after: 450052 No. 85 South Songshan Road, 27 District, Henan, Zhengzhou Co-patentee after: Henan jiuyu enpai Power Technology Co., Ltd Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID HENAN ELECTRIC POWER Co. Co-patentee after: State Grid Corporation of China Address before: 450052 No. 85 South Songshan Road, 27 District, Henan, Zhengzhou Co-patentee before: HENAN ENPAI HIGH-TECH GROUP Co.,Ltd. Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID HENAN ELECTRIC POWER Co. Co-patentee before: State Grid Corporation of China |
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| CP01 | Change in the name or title of a patent holder |