CN106969230A - A kind of whipping limitation system and method for high energy pipeline - Google Patents
A kind of whipping limitation system and method for high energy pipeline Download PDFInfo
- Publication number
- CN106969230A CN106969230A CN201710376321.5A CN201710376321A CN106969230A CN 106969230 A CN106969230 A CN 106969230A CN 201710376321 A CN201710376321 A CN 201710376321A CN 106969230 A CN106969230 A CN 106969230A
- Authority
- CN
- China
- Prior art keywords
- high energy
- energy pipeline
- damper
- whipping
- pipeline
- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/005—Devices restraining ruptured tubes from whipping
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
System and method are limited the invention discloses a kind of whipping of high energy pipeline, system includes some groups of whipping limits devices, two whipping limits devices in one group are separately mounted to the both sides of high energy channel bend, and whipping limits device includes carriage assembly, the first key seat, the first bearing pin, velocity sensitization type hydraulic damper, the second bearing pin, the second key seat, nut, bolt, board-like arc pipe collar.By being respectively mounted one or more groups of whipping limits devices on the high energy pipeline close near high energy channel bend both sides, when high energy pipeline produces thermal walking, velocity sensitization type hydraulic damper follows high energy pipeline, and the drag of very little is only produced to high energy pipeline;When in high energy channel bend broken pipe occurs for high energy pipeline, velocity sensitization type hydraulic damper produces locking, to the specified drag of high energy pipeline formation, while effectively protecting other key equipments and high energy pipeline.
Description
Technical field
System and method are limited the present invention relates to a kind of pipeline whipping, and in particular to the whipping to a kind of high energy pipeline is limited
Apparatus and method, belong to electrically with mechanical & electrical technology and energy security field.
Background technology
At present, high energy pipeline is widely used in the fields such as nuclear power and chemical industry, for high energy pipeline, if in high energy pipeline
Tube breaking phenomenon occurs for elbow junction, and high steam can spray, and high energy pipeline is produced and continues larger active force, makes height
Energy pipeline formation whipping, due to high steam sustained firing, the whipping kinetic energy of high energy pipeline can continue to increase, and high energy pipeline is being got rid of
During hitting, if contacted with other key equipments, seriously secondary can be formed with other key equipments of huge energy impact
Accident, to prevent high energy pipeline from occurring other key equipments near whipping, destruction, it is to avoid form serious second accident, institute
So that in key areas such as nuclear powers, pipeline whipping limitation dress can be added on the high energy pipeline being connected with high energy channel bend two ends
Put.The pipeline whipping limits device generally used now is U-shaped(Or other shapes)Hardware, it is contemplated that high energy pipe
The thermal walking in road, U-shaped whipping limits device must leave certain space between high energy pipeline when mounted, meet high energy pipeline
The requirement of thermal walking, but when high energy pipeline high energy channel bend junction occur tube breaking phenomenon when, U-shaped whipping limits device with
Between high energy pipeline reserve high energy pipeline thermal walking space, reformed into high energy pipeline accelerate and whipping energy it is increased because
Element, at the same U-shaped whipping limits device occur geometry deformation when, the drag that U-shaped whipping limits device is formed to high energy pipeline compared with
Small, the whipping energy of high energy pipeline may proceed to increase, when U-shaped whipping limits device, which enters, to be plastically deformed, U-shaped whipping limitation dress
Put and just really start to absorb and consume the whipping energy of high energy pipeline, and now the whipping energy of high energy pipeline is very big
, U-shaped whipping limits device is absorbed and the requirement of consumption is also just improved a lot, in addition, at present worldwide, not having also
High energy pipeline whipping can be truly simulated, the rig for testing tested U-shaped whipping limits device.
The content of the invention
The technical solution adopted by the present invention is:
A kind of whipping of high energy pipeline limits two whippings limitation dress in system, including some groups of whipping limits devices, one group
The both sides for being separately mounted to high energy channel bend are put, whipping limits device includes carriage assembly, the first key seat, the first bearing pin, speed
Spend responsive type hydraulic damper, the second bearing pin, the second key seat, nut, bolt, board-like arc pipe collar;The carriage assembly includes
Tray plate, bracket riser, arc pallet, the right-hand member of bracket riser are mutually welded with tray plate, the left end and arc of bracket riser
Shape supporting plate is mutually welded, and tray plate, bracket riser, arc pallet are welded to each other into carriage assembly;The velocity sensitization type hydraulic pressure
Damper includes damper motion portion plunger, damper motion portion, damper fixed part, damper fixed part plunger, damper
Motion portion plunger is fixedly connected on the right-hand member in damper motion portion, and damper fixed part plunger is fixedly connected on damper fixed part
Left end, damper motion portion can relative to damper fixed part produce it is moving axially relative;First key seat is welded on
On carriage assembly;Second key seat is welded on pre-plugged in the wall fixed seat in wall;The velocity sensitization type liquid
Press first key seat formation of the damper motion portion's plunger of damper by the first bearing pin with being welded on carriage assembly to be hinged, hinder
Buddhist nun's device fixed part plunger by the second bearing pin be welded in wall fixed seat the second key seat formation be hinged, velocity sensitization type liquid
Pressure damper is installed between wall and carriage assembly;The board-like arc pipe collar passes through nuts and bolt and carriage assembly
Arc pallet formation is fastenedly connected, and high energy pipeline is tightly embraced on carriage assembly;High energy pipeline passes through carriage assembly, speed
Degree responsive type hydraulic damper is connected with wall.
A kind of whipping method for limiting of high energy pipeline, on the high energy pipeline close near high energy channel bend both sides respectively
One or more groups of whipping limits devices are installed.
A, when high energy pipeline normal operating conditions, when producing thermal walking, radial motion speed very little, high energy pipeline drives support
Frame component, the damper motion portion of velocity sensitization type hydraulic damper consolidate relative to the damper of velocity sensitization type hydraulic damper
Determine portion and wall forms slow motion, according to the characteristic of velocity sensitization type hydraulic damper, in low-speed motion, such as speed is small
In 120mm/min, velocity sensitization type hydraulic damper does not produce locking, and the drag of very little, speed are produced to outside effective object
Responsive type hydraulic damper only produces the drag of very little to high energy pipeline, does not influence high energy when high energy pipeline produces thermal walking
The normal work of pipeline;
B, occurs broken pipe at the Po Guan positions of high energy channel bend A sections when high energy pipeline, high energy steam is from A sections Po Guan positions
Place sprays to the left, and to the thrust F of high energy pipeline formation to the right, high energy pipeline produces to the right whipping, the radial motion of high energy pipeline
Speed is improved rapidly, and according to the characteristic of velocity sensitization type hydraulic damper, when movement velocity reaches certain value, such as speed exists
Between 120mm/min-360mm/min, velocity sensitization type hydraulic damper can produce locking, to the volume of outside effective object formation
Determine drag, when broken pipe whipping occurs for high energy pipeline, high energy pipeline drives carriage assembly, the resistance of velocity sensitization type hydraulic damper
Motion of the Buddhist nun device motion portion relative to the damper fixed part and wall of velocity sensitization type hydraulic damper rises, velocity sensitization type
Hydraulic damper produces locking, and drag is produced to high energy pipeline, on the one hand, the radial displacement of limitation high energy pipeline, prevents high energy
Pipeline produces whipping, destroys other key equipments, on the other hand, high when producing locking due to velocity sensitization type hydraulic damper
The movement velocity of energy pipeline is relatively low, and Bi Ru≤360mm/min limit the whipping energy of high energy pipeline, and high energy pipeline can not be right
Whipping limits device forms larger impulsive force, and same whipping limits device is also smaller to the drag of high energy pipeline, effectively protection
High energy pipeline.
The beneficial effects of the invention are as follows:
The present invention proposes a kind of whipping limitation system and method for high energy pipeline, by close near high energy channel bend both sides
High energy pipeline on be respectively mounted one or more groups of above-mentioned whipping limits devices.When high energy pipeline normal operating conditions, heat is produced
During displacement, velocity sensitization type hydraulic damper follows high energy pipeline, and the drag of very little is only produced to high energy pipeline, high energy is not influenceed
The normal work of pipeline;When in high energy channel bend broken pipe occurs for high energy pipeline, velocity sensitization type hydraulic damper is produced and closed
Lock, to the specified drag of high energy pipeline formation, on the one hand, the radial displacement of limitation high energy pipeline, prevents high energy pipeline is produced from getting rid of
Hit, effectively protect other key equipments;On the other hand, the increase of high energy pipeline whipping energy is limited, is reduced to high energy pipeline
Impulsive force, effectively protection high energy pipeline.
Brief description of the drawings
The embodiment provided below in conjunction with the accompanying drawings is described in more detail to the present invention.
Fig. 1 is the schematic diagram of the present invention.
Embodiment
As shown in figure 1, a kind of whipping of high energy pipeline is limited in system, including some groups of whipping limits devices, one group
Two whipping limits devices are separately mounted to the both sides of high energy channel bend 12, and whipping limits device includes carriage assembly 1, first
Key seat 2, the first bearing pin 3, velocity sensitization type hydraulic damper 4, the second bearing pin 5, the second key seat 6, nut 8, bolt 9, board-like arc
Shape pipe collar 10;The carriage assembly 1 includes tray plate 1-1, bracket riser 1-2, arc pallet 1-3, the bracket riser 1-2 right side
End is welded with tray plate 1-1 phases, and bracket riser 1-2 left end and arc pallet 1-3 phases are welded, and tray plate 1-1, bracket are stood
Plate 1-2, arc pallet 1-3 are welded to each other into carriage assembly 1;The velocity sensitization type hydraulic damper 4 is moved including damper
Portion plunger 4-1, damper motion portion 4-2, damper fixed part 4-3, damper fixed part plunger 4-4, damper motion portion pin
Head 4-1 is fixedly connected on damper motion portion 4-2 right-hand member, and damper fixed part plunger 4-4 is fixedly connected on damper and fixed
Portion 4-3 left end, damper motion portion 4-2 can produce moving axially relative relative to damper fixed part 4-3;Described first
Key seat 2 is welded on carriage assembly 1;Second key seat 6 is welded on pre-plugged in the wall fixed seat 7 in wall;Institute
The damper motion portion plunger 4-1 of velocity sensitization type hydraulic damper 4 is stated by the first bearing pin 3 and is welded on carriage assembly 1
The formation of the first key seat 2 be hinged, damper fixed part plunger 4-4 by the second bearing pin 5 be welded in wall fixed seat 7 the
The formation of two key seats 6 is hinged, and velocity sensitization type hydraulic damper 4 is installed between wall and carriage assembly 1;The board-like arc
Pipe collar 10 is fastenedly connected by the arc pallet 1-3 formation of nut 8 and bolt 9 and carriage assembly 1, and high energy pipeline 11 tightly
Embrace on carriage assembly 1;High energy pipeline 11 is connected by carriage assembly 1, velocity sensitization type hydraulic damper 4 with wall.
A kind of whipping method for limiting of high energy pipeline, on the high energy pipeline 11 close near the both sides of high energy channel bend 12
It is respectively mounted one or more groups of above-mentioned whipping limits devices.
A works as the normal operating conditions of high energy pipeline 11, when producing thermal walking, radial motion speed very little, the band of high energy pipeline 11
Dynamic carriage assembly 1, the damper motion portion 4-2 of velocity sensitization type hydraulic damper 4 are relative to velocity sensitization type hydraulic damper 4
Damper fixed part 4-3 and wall form slow motion, according to the characteristic of velocity sensitization type hydraulic damper, in low-speed motion
When, such as speed is less than 120mm/min, and velocity sensitization type hydraulic damper does not produce locking, and outside effective object is produced very
Small drag, velocity sensitization type hydraulic damper 4 only produces very little when high energy pipeline 11 produces thermal walking to high energy pipeline 11
Drag, the normal work of high energy pipeline 11 is not influenceed;
When high energy pipeline 11 broken pipe occurs at the Po Guan positions of high energy channel bend 12A sections for b, and high energy steam is managed from A sections are broken
Sprayed to the left at position, thrust F to the right is formed to high energy pipeline 11, high energy pipeline 11 produces to the right whipping, high energy pipeline 11
Radial motion speed improve rapidly, according to the characteristic of velocity sensitization type hydraulic damper, when movement velocity reaches certain value,
Such as speed is between 120mm/min--360mm/min, and velocity sensitization type hydraulic damper can produce locking, to external action
The specified drag of object formation, when broken pipe whipping occurs for high energy pipeline 11, high energy pipeline 11 drives carriage assembly 1, speed quick
Damper fixed part 4-3s of the damper motion portion 4-2 of sense type hydraulic damper 4 relative to velocity sensitization type hydraulic damper 4
And the motion of wall rises, velocity sensitization type hydraulic damper 4 produces locking, and drag is produced to high energy pipeline 11, on the one hand, limit
The radial displacement of high energy pipeline 11 processed, prevents high energy pipeline 11 from producing whipping, destroys other key equipments, on the other hand, due to
When velocity sensitization type hydraulic damper 4 produces locking, the movement velocity of high energy pipeline 11 is relatively low, Bi Ru≤360mm/min, limitation
The whipping energy of high energy pipeline 11, high energy pipeline 11 can not form larger impulsive force, same whipping to whipping limits device
Limits device is also smaller to the drag of high energy pipeline 11, effectively protection high energy pipeline 11.
The present invention puies forward a kind of whipping limitation system and method for high energy pipeline, by attached close to high energy channel bend both sides
One or more groups of whipping limits devices are respectively mounted near high energy pipeline.When high energy pipeline normal operating conditions, thermal potential is produced
During shifting, velocity sensitization type hydraulic damper follows high energy pipeline, and the drag of very little is only produced to high energy pipeline, high energy pipe is not influenceed
The normal work in road;When in high energy channel bend broken pipe occurs for high energy pipeline, velocity sensitization type hydraulic damper produces locking,
To the specified drag of high energy pipeline formation, on the one hand, the radial displacement of limitation high energy pipeline, prevent high energy pipeline from producing whipping,
Effectively protect other key equipments;On the other hand, the increase of high energy pipeline whipping energy is limited, reduction is rushed to high energy pipeline
Power is hit, effectively protection high energy pipeline.
Described above is only the preferred embodiment of the present invention, it should be pointed out that:For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (2)
1. a kind of whipping of high energy pipeline limits two whippings limitation in system, including some groups of whipping limits devices, one group
Device is separately mounted to high energy channel bend(12)Both sides, it is characterised in that:The whipping limits device includes carriage assembly
(1), the first key seat(2), the first bearing pin(3), velocity sensitization type hydraulic damper(4), the second bearing pin(5), the second key seat(6)、
Nut(8), bolt(9), board-like arc pipe collar(10);The carriage assembly(1)Including tray plate(1-1), bracket riser(1-
2), arc pallet(1-3), bracket riser(1-2)Right-hand member and tray plate(1-1)Mutually weld, bracket riser(1-2)Left end
With arc pallet(1-3)Mutually weld, tray plate(1-1), bracket riser(1-2), arc pallet(1-3)It is welded to each other into bracket
Component(1);The velocity sensitization type hydraulic damper(4)Including damper motion portion plunger(4-1), damper motion portion(4-
2), damper fixed part(4-3), damper fixed part plunger(4-4), damper motion portion plunger(4-1)It is fixedly connected on resistance
Buddhist nun's device motion portion(4-2)Right-hand member, damper fixed part plunger(4-4)It is fixedly connected on damper fixed part(4-3)Left end,
Damper motion portion(4-2)Can be relative to damper fixed part(4-3)Produce moving axially relative;First key seat(2)
It is welded on carriage assembly(1)On;Second key seat(6)It is welded on wall fixed seat of the pre-plugged in wall(7)On;Institute
State velocity sensitization type hydraulic damper(4)Damper motion portion plunger(4-1)Pass through the first bearing pin(3)With being welded on bracket group
Part(1)On the first key seat(2)Formation is hinged, damper fixed part plunger(4-4)Pass through the second bearing pin(5)With being welded on wall
Fixed seat(7)On the second key seat(6)Formation is hinged, velocity sensitization type hydraulic damper(4)It is installed in wall and bracket group
Part(1)Between;The board-like arc pipe collar(10)Pass through nut(8)And bolt(9)With carriage assembly(1)Arc pallet(1-
3)Formation is fastenedly connected, and high energy pipeline(11)Tightly embrace in carriage assembly(1)On;High energy pipeline(11)Pass through bracket group
Part(1), velocity sensitization type hydraulic damper(4)It is connected with wall.
2. a kind of whipping method for limiting of high energy pipeline, it is characterised in that close to high energy channel bend(12)Height near both sides
Can pipeline(11)On be respectively mounted whipping limits device described in one or more groups of claims 1;
(a), when high energy pipeline(11)Normal operating conditions, when producing thermal walking, radial motion speed very little, high energy pipeline(11)
Drive carriage assembly(1), velocity sensitization type hydraulic damper(4)Damper motion portion(4-2)Relative to velocity sensitization type liquid
Press damper(4)Damper fixed part(4-3)And wall forms slow motion, due to when in low-speed motion, speed sensitive
Type hydraulic damper does not produce locking, and the drag of very little, velocity sensitization type hydraulic damper are produced to outside effective object(4)
High energy pipeline(11)When producing thermal walking, only to high energy pipeline(11)The drag of very little is produced, high energy pipeline is not influenceed(11)'s
Normal work;
(b), when high energy pipeline(11)In high energy channel bend(12)Broken pipe occurs at the Po Guan positions of A sections, high energy steam is cut from A
Face is sprayed to the left at Po Guan positions, to high energy pipeline(11)Form thrust F to the right, high energy pipeline(11)Whipping is produced to the right,
High energy pipeline(11)Radial motion speed improve rapidly, because velocity sensitization type hydraulic damper reaches necessarily in movement velocity
Locking can be produced during value, to the specified drag of outside effective object formation, in high energy pipeline(11)When occurring broken pipe whipping, high energy
Pipeline(11)Drive carriage assembly(1), velocity sensitization type hydraulic damper(4)Damper motion portion(4-2)Relative to speed
Responsive type hydraulic damper(4)Damper fixed part(4-3)And the motion of wall rises, velocity sensitization type hydraulic damper
(4)Locking is produced, to high energy pipeline(11)Produce drag, on the one hand, limitation high energy pipeline(11)Radial displacement, prevent high energy
Pipeline(11)Whipping is produced, other key equipments are destroyed, on the other hand, due to velocity sensitization type hydraulic damper(4)Generation is closed
During lock, high energy pipeline(11)Movement velocity it is relatively low, limit high energy pipeline(11)Whipping energy, high energy pipeline(11)Can not
Big impulsive force is formed to whipping limits device, same whipping limits device is to high energy pipeline(11)Drag it is also smaller, effectively
Protect high energy pipeline(11).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710376321.5A CN106969230A (en) | 2017-05-25 | 2017-05-25 | A kind of whipping limitation system and method for high energy pipeline |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710376321.5A CN106969230A (en) | 2017-05-25 | 2017-05-25 | A kind of whipping limitation system and method for high energy pipeline |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106969230A true CN106969230A (en) | 2017-07-21 |
Family
ID=59326399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710376321.5A Pending CN106969230A (en) | 2017-05-25 | 2017-05-25 | A kind of whipping limitation system and method for high energy pipeline |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106969230A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109524136A (en) * | 2018-11-22 | 2019-03-26 | 西南石油大学 | A kind of experimental rig and method of high energy pipe fracture whipping behavior |
CN110091102A (en) * | 2019-05-24 | 2019-08-06 | 薛溪健 | A kind of auxiliary docking facilities for chemical pipeline welding |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3214687A1 (en) * | 1982-04-16 | 1983-10-27 | Gerb Gesellschaft für Isolierung mbH & Co KG, 1000 Berlin | Device for the sprung retention of pipelines and the like |
CN2651560Y (en) * | 2003-10-16 | 2004-10-27 | 上海理工大学附属工厂 | Hydraulic damper for nuclear power station |
CN201461843U (en) * | 2009-07-14 | 2010-05-12 | 航天科工哈尔滨风华有限公司电站设备分公司 | Double-action damper of hydraulic shock absorption device |
CN103216123A (en) * | 2013-04-16 | 2013-07-24 | 中国电力工程顾问集团华东电力设计院 | Nuclear power conventional island whipping prevention device |
CN105805476A (en) * | 2016-04-27 | 2016-07-27 | 国核电力规划设计研究院 | High-energy pipeline impact energy absorber |
CN106090440A (en) * | 2016-06-16 | 2016-11-09 | 清华大学 | One kind firm supporting damping framework |
CN106678484A (en) * | 2016-11-17 | 2017-05-17 | 国家电网公司 | High-energy pipeline impact power absorber in power planning |
-
2017
- 2017-05-25 CN CN201710376321.5A patent/CN106969230A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3214687A1 (en) * | 1982-04-16 | 1983-10-27 | Gerb Gesellschaft für Isolierung mbH & Co KG, 1000 Berlin | Device for the sprung retention of pipelines and the like |
CN2651560Y (en) * | 2003-10-16 | 2004-10-27 | 上海理工大学附属工厂 | Hydraulic damper for nuclear power station |
CN201461843U (en) * | 2009-07-14 | 2010-05-12 | 航天科工哈尔滨风华有限公司电站设备分公司 | Double-action damper of hydraulic shock absorption device |
CN103216123A (en) * | 2013-04-16 | 2013-07-24 | 中国电力工程顾问集团华东电力设计院 | Nuclear power conventional island whipping prevention device |
CN105805476A (en) * | 2016-04-27 | 2016-07-27 | 国核电力规划设计研究院 | High-energy pipeline impact energy absorber |
CN106090440A (en) * | 2016-06-16 | 2016-11-09 | 清华大学 | One kind firm supporting damping framework |
CN106678484A (en) * | 2016-11-17 | 2017-05-17 | 国家电网公司 | High-energy pipeline impact power absorber in power planning |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109524136A (en) * | 2018-11-22 | 2019-03-26 | 西南石油大学 | A kind of experimental rig and method of high energy pipe fracture whipping behavior |
CN109524136B (en) * | 2018-11-22 | 2022-05-20 | 西南石油大学 | Device and method for testing high-energy tube fracture whipping behavior |
CN110091102A (en) * | 2019-05-24 | 2019-08-06 | 薛溪健 | A kind of auxiliary docking facilities for chemical pipeline welding |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106969230A (en) | A kind of whipping limitation system and method for high energy pipeline | |
WO2013086898A1 (en) | Troubleshooting and energy absorbing device and leading car of motor train unit | |
CN105506251B (en) | High-pressure water jet eliminates material internal residual stress nozzle system and method | |
CN107166128A (en) | The whipping limits device and method of a kind of high energy pipeline | |
CN108316258A (en) | A kind of baffle wall style with resistance device | |
CN106639022A (en) | Novel nonlinear earthquake reduction device | |
CN206141628U (en) | Strike energy -absorbing device and vehicle | |
CN108385852A (en) | A kind of environmentally friendly damping device for building | |
CN108755596B (en) | Marine high pile cap series connection anticollision energy-absorbing structure | |
CN113700363A (en) | Assembled easy-to-reset rotating energy consumption node | |
CN207045351U (en) | A kind of turnup combined type anti-climbing energy-absorbing device | |
CN202647053U (en) | Throwing and impacting resisting limit piece for pipeline of nuclear power plant | |
CN207111813U (en) | Shearing resistance cut type self-locking spring damper | |
CN105805476B (en) | High energy pipeline impacts energy absorber | |
CN105000029B (en) | A kind of metal tube honeycomb core combined type anticreeper built in honeycomb core | |
CN105953025B (en) | A kind of wiper receives anticollision device, collision-prevention device | |
CN101315113B (en) | Viscous damping device with radial position limiter | |
Yu et al. | Influence of FRP arrestors on the dynamic collapse and implosion of underwater pipelines | |
CN111810758A (en) | Protective device for resisting pipeline impact | |
CN106347404B (en) | A kind of collision energy-absorbing device used for rail vehicle | |
CN115788521B (en) | Roadway combined energy dissipation and shock absorption supporting device for preventing rock burst | |
CN104120648B (en) | Collection point-type swathes formula anticollision device of pier | |
CN105040852A (en) | Prestress viscoelastic damper | |
CN105113507A (en) | Hydraulic pile hammer | |
CN208995984U (en) | A kind of sea high-rise pile cap series connection anti-collision energy absorption structure |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170721 |