CN109737243A - A kind of universal viscous damper for pipeline vibration isolation protecting against shock - Google Patents
A kind of universal viscous damper for pipeline vibration isolation protecting against shock Download PDFInfo
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- CN109737243A CN109737243A CN201910176688.1A CN201910176688A CN109737243A CN 109737243 A CN109737243 A CN 109737243A CN 201910176688 A CN201910176688 A CN 201910176688A CN 109737243 A CN109737243 A CN 109737243A
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- 238000002955 isolation Methods 0.000 title claims abstract description 33
- 230000035939 shock Effects 0.000 title claims abstract description 28
- 238000013016 damping Methods 0.000 claims abstract description 38
- 238000009434 installation Methods 0.000 claims description 44
- 239000003795 chemical substances by application Substances 0.000 claims description 31
- 230000005855 radiation Effects 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- 229920002367 Polyisobutene Polymers 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
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- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of universal viscous dampers for pipeline vibration isolation protecting against shock, including upper junction plate, lower connecting plate, cylinder body, cover and piston；The cylinder body and the lower connecting plate are integrally formed, and are contained with damping agent in the cylinder body, and the piston being fixedly connected with the upper junction plate is equipped in the damping agent of cylinder body, and the cover is covered at outside the cylinder body and is fixedly connected with the upper junction plate.The present invention can carry out pre- inclined dress to viscous damper, guarantee that pipe vibration system there are enough offsets in normal operating conditions, in addition, the viscous damper can the vibration of six-freedom degree of linear oscillator and twisting vibration to vibrational system damping is provided, the amplitude for controlling vibration, attenuates vibration.
Description
Technical field
The present invention relates to a kind of dampers, and in particular to a kind of universal viscous damper for pipeline vibration isolation protecting against shock.
Background technique
Pipeline is widely used in the fields such as thermal power plant, nuclear power plant, chemical industry, steel plant, ship.It is transporting
In the pipeline of fluid (liquid, steam, powder), in nominal situation, or due to the adjusting of production process, often need to open and close valve
Door, water pump and the hydraulic turbine are also possible to that there is a situation where open, stop suddenly.When this, the liquid velocity in pipeline will occur
Suddenly change, the pressure in pipeline rise rapidly or decline, and lead to pipe vibration or shaking, so that pipeline is in certain direction
It is upper to generate biggish offset, it will lead to collapsing for pipeline when serious, seriously affect the normal operation of pipe-line system.Long-term
Pipe vibration can greatly shorten the service life of pipe-line system and its connecting device, and may occur in the case of specific run
High vibration may directly result in the generation of safety accident, this is for needing to show for the pipe-line system long lasting for operation
It is so unallowable.The hydraulic damper being widely used at present and rubber support vibration isolation can only one direction vibration isolation, not can be carried out
Multi-direction vibration isolation, while rubber support is unable to passive energy dissipation, and common rubber support tensile property is weaker, occurs in device
It is bad that it is easy drawing when large deformation, can also be easy aging.
Similar to a kind of control pipe vibration and rolling described in the Chinese invention patent that Authorization Notice No. is CN205606073U
Dynamic viscous damper, including pedestal and with the cylinder body that pedestal is linked together, damping agent is contained in cylinder body, in cylinder body
The piston being fixedly connected with top cover is provided in damping agent, the diameter of the piston is the 2/3 to 4/5 of cylinder diameter, under top cover
The sealing shroud of elastic connection is installed between end and cylinder body.The damper structure is simple and reliable, long service life and can be effective
Control pipe vibration and shaking.But it since the viscous damper course of work generates amount of heat, is sealed and is connected with elastic seal cartridge
It connects cylinder body and top cover is unfavorable for radiating, and elastic seal cartridge is easy to produce heat ageing phenomenon so that the case where failing, service life
It is short.
Summary of the invention
Damper is a kind of basic original part of widely applied vibration control, is widely applied to energy source and power chemical industry, steel
The vibration isolation of the pipe-line system in field consumes energy and prevents from impacting.Common hydraulic damper is very perfect, but easy aging,
It is easy oil leak, sealing system and is easily damaged that failure, structure is complicated, cost height, service life are low, the wasting of resources, environmental pollution.The present invention
Purpose be to solve the problems, such as current hydraulic damper and rubber support vibration isolation cannot multi-direction vibration isolation and passive energy dissipation, mention
For a kind of viscous damper, which is able to carry out multi-faceted passive energy dissipation.
The present invention solves technical solution used by the technical problem: a kind of for the universal viscous of pipeline vibration isolation protecting against shock
Stagnant damper, the damper include upper junction plate, lower connecting plate, cylinder body, cover and piston；The cylinder body and the lower connection
Plate is integrally formed, and is contained with damping agent in the cylinder body, is equipped in the damping agent of cylinder body and is fixedly connected with the upper junction plate
Piston, it is outer and be fixedly connected with the upper junction plate that the cover covers at the cylinder body.
Further, the outer surface of the cylinder body is equipped with stroke mark board, and the stroke mark board reflects the cover
Relative to the displacement in the vertical direction of cylinder base, it is used to indicate the expansion displacement of pipeline and equipment.
Further, the edge of the upper junction plate and the lower connecting plate is equipped with installation through-hole.The installation is logical
Hole can be used to connect the fixing piece or vibrational system of sufficiently large rigidity.
It further, further include locking level, the locking level includes the body of rod and extension, and the extension includes upper extension
Portion and lower extension, the upper extension and the lower extension be respectively arranged on the upper and lower ends of the body of rod and the vertical body of rod to
Outer extension, the end of the upper extension are equipped with the first installation through slot, and the end of the lower extension is equipped with the second installation through slot,
The edge of the upper junction plate is equipped with first through hole, and the edge of the lower connecting plate is equipped with the second through-hole；Described first is logical
Hole and second through-hole are ellipse hole, and the first through hole and the first installation through slot are detachably solid by fastener
Fixed connection, second through-hole, which with described second is installed through slot and is detachably fixed by fastener, to be connect, when being connected and fixed described in
The transverse direction of first through hole and the transverse direction of second through-hole are orthogonal.It, should by the way that locking level is arranged
Locking level can ensure that the upper junction plate of viscous damper and the position of lower connecting plate are relatively fixed in transport, i.e., piston does not have
Relative damping agent campaign avoids damping agent leakage from being readily transported.It is logical by setting ellipse for first through hole and the second through-hole
Hole allows upper junction plate to deviate lower connecting plate certain distance and carries out pre- inclined dress, avoids displacement occur not when working normally
The situation of foot, the transverse direction of first through hole long axis direction and the second through-hole is mutually perpendicular to when being connected and fixed, so that upper company
Fishplate bar and lower connecting plate can carry out pre- inclined dress in the X-Y dimension plane of restriction, increase the space of offset.
Further, the transverse direction of each first through hole of the upper junction plate edge is to set in parallel
It sets, the transverse direction of each second through-hole of the lower connecting plate edge is to be arranged in parallel；The upper extension
End be recessed the first installation through slot in the direction of extension, the end of the lower extension is recessed in the direction of extension
Second installation through slot.It, can be directed along when installing fixed by the way that the first installation through slot and the second installation through slot of indent is arranged
The direction of indent and fixing piece are clamped, and are fixed by fixing piece, and installation is facilitated.
It further, further include every heat radiation supported；It is described every heat radiation supported include the first bearing plate, the second bearing plate and
Several vertical plates；First bearing plate is arranged in parallel with second bearing plate, and several vertical plates are vertically consolidated in described
Between one bearing plate and the second bearing plate, several vertical plates along the middle part of the first bearing plate or the second bearing plate radially
Equiangularly arranged setting.The contact area that damper and outside air can be increased using the structure is had and is imitated well every heat dissipation
Fruit uses so that the viscous damper can be up in the running temperature spent 600 more in pipeline.
Further, the edge of first bearing plate and the second bearing plate is equipped with connection through-hole, and the connection is logical
Hole matches the installation through-hole, and the installation through-hole is detachably connected with the connection through-hole by bolt.
Preferably, the damping agent is the resisting medium based on polyisobutene.The resisting medium is capable of providing medium resistance
Buddhist nun's coefficient, the vibrational system for being -10 DEG C to+40 DEG C suitable for running temperature under continuous operation operating condition.
Preferably, the damping agent is the resisting medium based on silicone oil.The resisting medium is capable of providing lower damping system
Number, the vibrational system for being -30 DEG C to+110 DEG C suitable for running temperature under continuous operation operating condition.
Preferably, the damping agent is high viscosity organic liquid or hydrocarbon and its non metallic derivatives composition
Complex mixture.
Compared with prior art, there is following good effect:
1. viscous damper of the present invention, piston can be in the cylinder for the damping agent for impregnating the organic media containing high viscosity
Any direction offset in internal portion, can the vibration of six-freedom degree of linear oscillator and twisting vibration to vibrational system resistance is provided
Buddhist nun controls the amplitude of vibration, decaying vibration.
2. viscous damper of the present invention, cover can prevent external dust and impurity, unclarified liquid from entering cylinder
Damping agent inside body internal contamination, and the cover is non-aging, long service life.
3. viscous damper of the present invention, by the way that cover to cover to the design of cylinder body, outside cover inner wall and cylinder body
Space between wall facilitate cylinder interior generation heat can Quick diffusing, reduce influence of the heat radiation to damping agent.
4. viscous damper of the present invention, vibration when for being opened and closed suddenly by pipeline is so that the offset that pipeline generates
The problem of offset that can be used when consuming normal work, only needs during installation, the phase in the direction that piston is deviated toward pipeline
Opposite direction deviates certain deviation amount, and piston is located at the middle position of damping agent when can pipe-line system be worked normally, and makes
Enough displacements can be had by obtaining piston.
5. the configuration of the present invention is simple, without precise part, low cost, performance stabilization, reliable operation, without wearing terrain, service life
It grows, can directly be used continuously, is practical substantially without maintenance, environmental protection.
Present invention will be further explained below with reference to the attached drawings and examples.
Detailed description of the invention
Fig. 1 is a kind of universal viscous damper for pipeline vibration isolation protecting against shock described in the embodiment of the present invention one
Structural schematic diagram.
Fig. 2 is a kind of universal viscous damper for pipeline vibration isolation protecting against shock described in the embodiment of the present invention one
Median plane cross-sectional view.
Fig. 3 is a kind of universal viscous damper biasing for pipeline vibration isolation protecting against shock described in the embodiment of the present invention one
Structural schematic diagram when installation.
Fig. 4 is a kind of lock of the universal viscous damper for pipeline vibration isolation protecting against shock described in the embodiment of the present invention one
The structural schematic diagram of fixed pole.
Fig. 5 is a kind of universal viscous damper for pipeline vibration isolation protecting against shock described in the embodiment of the present invention two
Structural schematic diagram.
Fig. 6 is a kind of universal viscous damper for pipeline vibration isolation protecting against shock described in the embodiment of the present invention two
Every heat radiation supported structural schematic diagram.
Wherein, 1- upper junction plate；2- cover；3- piston；4- damping agent；5- cylinder body；6- lower connecting plate；7- locking level；8-
Stroke mark board；11- is every heat radiation supported；12- first through hole；13- installation through-hole；The second through-hole of 61-；The 71- body of rod；Prolong on 72-
Extending portion；73- lower extension；74- first installs through slot；75- second installs through slot；The first bearing plate of 111-；112- second is accepted
Plate；113- vertical plate；114- connection through-hole.
Specific embodiment
Embodiment one
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
As shown in figures 1-4, a kind of universal viscous damper for pipeline vibration isolation protecting against shock of the present invention, including
Upper junction plate 1, lower connecting plate 6, cylinder body 5, cover 2 and piston 3.
The cylinder body 5 is integrally formed with the lower connecting plate 6, damping agent 4 is contained in the cylinder body 5, in the resistance of cylinder body
It is equipped with the piston 3 being fixedly connected with the upper junction plate in Buddhist nun's agent 4, the internal diameter of the outer diameter of the piston 3 and the cylinder body 5 can be with
Special designing is carried out according to specific operating condition.
The cover 2 is covered at outside the cylinder body 5 and is fixedly connected with the upper junction plate 1.
The outer surface of the cylinder body 5 be equipped with stroke mark board 8, the stroke mark board 8 reflect the cover 2 relative to
Displacement in the vertical direction of 5 bottom of cylinder body, is used to indicate the expansion displacement of pipeline and equipment.
The initial position of the central axis of the piston 3 deviates the horizontal distance of the initial position of the central axis of the cylinder body 5
Special designing can be carried out according to specific operating condition.Since certain vibrational systems are in the adjusting of production process, opening/shutting valve is often needed,
Water pump and the hydraulic turbine are also possible to that there is a situation where open, stop suddenly.When this, the liquid velocity in pipeline will occur suddenly
Variation, the pressure in pipeline rise rapidly or decline, and lead to pipe vibration so that pipeline generate on certain direction it is biggish
Offset, there is no pre- inclined, dampers of just having used up in opening/shutting valve in this way when most Pipe installing damper at present
Partial dislocation amount, the displacement generated when so that working normally is insufficient or displacement is excessive, so that the damping capacity of damper is big
Big to reduce, viscous damper of the present invention during installation, to viscous damper progress and dress partially, makes its piston excursion cylinder body
One horizontal distance enables pipe-line system to have enough offsets when working normally.
Specifically, the edge of the upper junction plate and the lower connecting plate is equipped with installation through-hole 13.The installation is logical
Hole 13 can be used to connect the fixing piece or vibrational system of sufficiently large rigidity.
It specifically, further include locking level 7, the locking level 7 includes the body of rod 71 and extension, and the extension includes above prolonging
Extending portion 72 and lower extension 73, the end of the upper extension 72 are equipped with the first installation through slot 74, the end of the lower extension 73
End is equipped with the second installation through slot 75, and the edge of the upper junction plate 1 is equipped with first through hole 12, the corner of the lower connecting plate 6
Place is equipped with the second through-hole 61, and the transverse direction of each first through hole 12 of 1 edge of upper junction plate is parallel
Setting, the transverse direction of each second through-hole 61 of 6 edge of lower connecting plate are to be arranged in parallel；Described first
Through-hole 12 and second through-hole 61 are ellipse hole, and the first through hole 12 passes through fastening with the first installation through slot 74
Part is detachably fixed connection, and second through-hole 61 is detachably fixed by fastener with the second installation through slot 75 and is connect,
The transverse direction of the first through hole 12 and the transverse direction of second through-hole 61 are orthogonal when being connected and fixed.
Preferably as the present embodiment, the fastener is screw bolt and nut, and the screw bolt and nut should ensure that bolt head and nut energy
It enough supports the first installation through slot and first through hole and it is fixed, and guarantee that bolt head and nut can support the second installation and lead to
Slot and the second through-hole simultaneously fix it.
It is detachably connected between the upper junction plate 1 and the lower connecting plate 6 by locking level 7, which can be true
The guarantor upper junction plate of viscous damper and position of lower connecting plate in transport is relatively fixed, i.e., piston does not have relative damping agent fortune
It is dynamic, avoid damping agent from revealing.By the way that first through hole and the second through-hole are set as ellipse, it can facilitate and viscous damper is carried out
Upper junction plate and lower connecting plate only need to be carried out reversed dress partially toward pipeline offset direction when installation by pre- inclined dress, and locking level makes pre-
The position filled partially is more accurate.When viscous damper and pipe-line system are installed, demounting bolt is only needed to take out locking level
?.
In use, the upper junction plate of viscous damper and the installation through-hole of one of lower connecting plate need and have sufficiently large
The fixing piece of rigidity connects, installation through-hole and vibrational system (such as power conduit) connection of another connecting plate.The viscous damper
In with the piston of upper junction plate consolidation can the free movement in the intracorporal damping agent of cylinder, can linear oscillator and torsion to vibrational system
The vibration of the dynamic six-freedom degree of rotational oscillation provides damping, is fallen kinetic energy dissipation by movement of the piston in damping agent, control vibration
Dynamic amplitude, attenuates vibration.
Embodiment two
As shown in Fig. 5~6, a kind of universal viscous damper for pipeline vibration isolation protecting against shock described in the present embodiment two,
Structure is roughly the same with embodiment one, the difference is that: it further include every heat radiation supported 11；It is described to include every heat radiation supported 11
First bearing plate 111, the second bearing plate 112 and several vertical plates 113；First bearing plate 111 and second bearing plate
112 are arranged in parallel, and several vertical plates 113 are vertically consolidated between first bearing plate 111 and the second bearing plate 112, if
Do the vertical plate 113 along the radially equiangularly arranged setting of the middle part of the first bearing plate 111 or the second bearing plate 112, originally
Preferably, the vertical plate 113 shares 6 pieces to embodiment.The edge of first bearing plate 111 and the second bearing plate 112 is all provided with
There is connection through-hole 114, the connection through-hole 114 matches the installation through-hole 13.
When installation, after to the pre- locking level disassembly installed partially of viscous damper, then with bolt by the installation through-hole 13
It is detachably connected with the connection through-hole 114 on the first bearing plate or the second bearing plate.It can be increased using this every heat radiation supported
The contact area for adding damper and outside air, has well every heat dissipation effect, so that the viscous damper can be up in pipeline
It being used in the running temperature spent 600 more.
Embodiment three
A kind of universal viscous damper for pipeline vibration isolation protecting against shock described in the present embodiment three, structure and embodiment one
Roughly the same, on the basis of example 1, the present embodiment three is characterized in that, the end of the upper extension 72 is in extension side
It is recessed the first installation through slot 74 upwards, it is logical that the end of the lower extension 73 is recessed the second installation in the direction of extension
Slot 75.It, can be directed along the side of indent when installing fixed by the way that the first installation through slot and the second installation through slot of indent is arranged
It is clamped to fixing piece, and is fixed by fixing piece, facilitate installation.
Example IV
A kind of universal viscous damper for pipeline vibration isolation protecting against shock described in the present embodiment four, structural principle and implementation
Example one, embodiment two or embodiment three are identical, on the basis of embodiment one, embodiment two or embodiment three, the present embodiment four
The damping agent 4 is the resisting medium based on silicone oil.The resisting medium is capable of providing lower damped coefficient, is suitable for continuous
The vibrational system that running temperature is -30 DEG C to+110 DEG C under operating condition.
Embodiment five
A kind of universal viscous damper for pipeline vibration isolation protecting against shock described in the present embodiment five, not in addition to damping agent 4
Together, other are identical as example IV, and damping agent 4 described in the present embodiment five is the resisting medium based on polyisobutene.The viscosity is situated between
Matter is capable of providing medium damped coefficient, the vibration system for being -10 DEG C to+40 DEG C suitable for running temperature under continuous operation operating condition
System.
Embodiment six
A kind of universal viscous damper for pipeline vibration isolation protecting against shock described in the present embodiment six, not in addition to damping agent 4
Together, other are identical as example IV, damping agent 4 described in the present embodiment six be high viscosity organic liquid or hydrocarbon and
The complex mixture of its non metallic derivatives composition.Preferably as the present embodiment, the damping agent 4 is based on modified pitch
Damping material.The damping material has the performance of high-damping, i.e., good shock absorption.
The invention is not limited to above embodiment, if not departing from the present invention to various changes or modifications of the invention
Spirit and scope, if these modification and variations belong within the scope of claim and equivalent technologies of the invention, then this hair
It is bright to be also intended to encompass these modification and variations.
Claims (10)
1. a kind of universal viscous damper for pipeline vibration isolation protecting against shock, which is characterized in that the damper include upper junction plate,
Lower connecting plate, cylinder body, cover and piston；The cylinder body and the lower connecting plate are integrally formed, and are contained with resistance in the cylinder body
Buddhist nun's agent, is equipped with the piston being fixedly connected with the upper junction plate in the damping agent of cylinder body, and the cover covers at the cylinder body
It is fixedly connected outside and with the upper junction plate.
2. a kind of universal viscous damper for pipeline vibration isolation protecting against shock according to claim 1, which is characterized in that institute
The outer surface for stating cylinder body is equipped with stroke mark board.
3. a kind of universal viscous damper for pipeline vibration isolation protecting against shock according to claim 1, which is characterized in that institute
The edge for stating upper junction plate and the lower connecting plate is equipped with installation through-hole.
4. a kind of universal viscous damper for pipeline vibration isolation protecting against shock according to claim 1, which is characterized in that also
Including locking level, the locking level includes the body of rod and extension, and the extension includes upper extension and lower extension, it is described on
The end of extension is equipped with the first installation through slot, and the end of the lower extension is equipped with the second installation through slot, the upper junction plate
Edge be equipped with first through hole, the edge of the lower connecting plate is equipped with the second through-hole；The first through hole and described second
Through-hole is ellipse hole, and the first through hole is detachably fixed by fastener with the first installation through slot and is connect, described
Second through-hole is detachably fixed by fastener with the second installation through slot and is connect, and the first through hole is ellipse when being connected and fixed
The transverse direction of circle long axis direction and second through-hole is orthogonal.
5. a kind of universal viscous damper for pipeline vibration isolation protecting against shock according to claim 4, which is characterized in that institute
The transverse direction for stating each first through hole of upper junction plate edge is to be arranged in parallel, the lower connecting plate edge
Each second through-hole transverse direction be arranged in parallel；The end of upper extension indent in the direction of extension
The first installation through slot is formed, the end of the lower extension is recessed the second installation through slot in the direction of extension.
6. a kind of universal viscous damper for pipeline vibration isolation protecting against shock according to claim 1, which is characterized in that also
Including every heat radiation supported；It is described to include the first bearing plate, the second bearing plate and several vertical plates every heat radiation supported；Described first holds
Fishplate bar is arranged in parallel with second bearing plate, and several vertical plates are vertically consolidated in first bearing plate and the second bearing plate
Between, several vertical plates are along the radially equiangularly arranged setting of the middle part of the first bearing plate or the second bearing plate.
7. a kind of universal viscous damper for pipeline vibration isolation protecting against shock according to claim 6, which is characterized in that institute
The edge for stating the first bearing plate and the second bearing plate is equipped with connection through-hole, and the connection through-hole matches the installation through-hole,
The installation through-hole is detachably connected with the connection through-hole by bolt.
8. described in any item a kind of universal viscous dampers for pipeline vibration isolation protecting against shock according to claim 1~7, special
Sign is that the damping agent is the resisting medium based on polyisobutene.
9. described in any item a kind of universal viscous dampers for pipeline vibration isolation protecting against shock according to claim 1~7, special
Sign is that the damping agent is the resisting medium based on silicone oil.
10. described in any item a kind of universal viscous dampers for pipeline vibration isolation protecting against shock according to claim 1~7,
It is characterized in that, the damping agent is the complexity of high viscosity organic liquid or hydrocarbon and its non metallic derivatives composition
Mixture.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910176688.1A CN109737243A (en) | 2019-03-08 | 2019-03-08 | A kind of universal viscous damper for pipeline vibration isolation protecting against shock |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910176688.1A CN109737243A (en) | 2019-03-08 | 2019-03-08 | A kind of universal viscous damper for pipeline vibration isolation protecting against shock |
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| CN209876153U (en) * | 2019-03-08 | 2019-12-31 | 西安华宁管道技术有限公司 | Universal viscous damper for vibration isolation and impact prevention of pipeline |
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2019
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| CN202194994U (en) * | 2011-08-11 | 2012-04-18 | 中国重汽集团济南动力有限公司 | Shock absorber |
| CN102506115A (en) * | 2011-11-03 | 2012-06-20 | 江苏宏丰奥凯机电有限公司 | Toothed silicone oil shock absorber |
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| CN205423668U (en) * | 2014-06-02 | 2016-08-03 | 力赛佳股份公司 | Viscoelasticity shock absorber |
| WO2016038274A1 (en) * | 2014-09-12 | 2016-03-17 | Peugeot Citroen Automobiles Sa | Spring device |
| CN205606073U (en) * | 2016-05-03 | 2016-09-28 | 西安华宁管道技术有限公司 | Control pipeline vibration and viscous damper who rocks |
| CN209876153U (en) * | 2019-03-08 | 2019-12-31 | 西安华宁管道技术有限公司 | Universal viscous damper for vibration isolation and impact prevention of pipeline |
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