CN103615494A - Damper used for vibration reduction of pipeline - Google Patents

Damper used for vibration reduction of pipeline Download PDF

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Publication number
CN103615494A
CN103615494A CN201310633368.7A CN201310633368A CN103615494A CN 103615494 A CN103615494 A CN 103615494A CN 201310633368 A CN201310633368 A CN 201310633368A CN 103615494 A CN103615494 A CN 103615494A
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CN
China
Prior art keywords
piston
damper
balance
chamber
rod
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Pending
Application number
CN201310633368.7A
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Chinese (zh)
Inventor
刘雪东
史蓓君
刘麟
刘文明
李欣疏
苏世卿
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Changzhou University
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Changzhou University
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Filing date
Publication date
Application filed by Changzhou University filed Critical Changzhou University
Priority to CN201310633368.7A priority Critical patent/CN103615494A/en
Publication of CN103615494A publication Critical patent/CN103615494A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a damper used for vibration reduction of a pipeline, and belongs to the field of damping vibration reduction. The damper overcomes the defects that an existing damper is complex in structure, large in transverse size and the like. According to the damper, a piston rod is connected with a piston, the rear end of the piston is provided with a balance chamber, and the balance chamber and a cylinder block are arranged in the same axial direction. Metal rubber and a balance piston are arranged inside the balance chamber, and the metal rubber is arranged below the balance piston. When the internal size of a hydraulic oil cavity changes, as the metal rubber has good compressibility and resilience, the balance piston can freely move along with the piston rod, and pressure of the hydraulic oil cavity is balanced by changing the internal size of the balance chamber. A damping valve set is arranged in the piston connected with the piston rod and is used for regulating speed and pressure in the hydraulic oil cavity. The damper is simple in structure, convenient to install, small in transverse size, convenient to maintain, and suitable for vibration reduction of the petrochemical engineering pipeline.

Description

A kind of damper for pipe vibration-damping
Affiliated technical field
The present invention relates to a kind of damper for pipe vibration-damping, be applicable to the vibration damping of petrochemical pipe, belong to damping vibration attenuation field.
Background technique
In the antidetonation of pipeline and shock resistance damping vibration damping, extensively adopt hydraulic damper.Hydraulic damper complex structure, requiring of sealing is high, and Sealing is fragile, need to often safeguard.Traditional hydraulic damper adopts single rod structure, mainly contains cylinder barrel and piston rod and forms.Cylinder barrel has been divided into two chambers by piston.In cylinder barrel, there are two groups of valves to come control piston to move reciprocatingly in cylinder barrel.Because single acting piston bar is when moving, the Volume Changes of the right and left is different, so Yi Ge balance grease chamber is set in outside or the inside of damper, carrys out the variation of balanced compensated hydraulic damper internal hydraulic pressure oil volume.Because hydraulic damper is externally provided with balance grease chamber, transverse dimension is increased, install and need larger space.The oil storage spring arranging in balance shoe cream room is easily damaged parts.Balance grease chamber and the cylinder barrel of hydraulic damper is to separate to manufacture, and part is more complicated, increased the difficulty of assembling.Nowadays, damper is gradually towards intelligent development, and this is inseparable with the application of new material.Chinese scholars is applied to new material in damper, and single energy consume mechanism is developed to polynary power consumption.
Metal-rubber is by certain method, by stretch, spiral helicine wire is stamped to form.The characteristic of its existing metal, has again the elasticity of rubber, corrosion-resistant, and without aging may.Metal-rubber is with low cost, and recovery is better, and stable performance does not need to safeguard.
Summary of the invention
The object of this invention is to provide a kind of damper, to solve, balance grease chamber is externally set reaches hydraulic oil volume in balance cylinder barrel, the flimsy technical requirements of part in damper.By the present invention, reduced the transverse dimension of hydraulic damper, simplified the structure of damper, the part of damper is reduced, assembling is simple.Reach damper structure and simplify, reduced the cost of damper later maintenance.
The technological scheme that the present invention addresses the above problem is as follows:
A damper for pipe vibration-damping, comprises hydraulic cylinder, the piston rod in cylinder barrel and the piston being connected with piston rod, the spring arranging on cylinder barrel outer piston bar, the viscous fluid in hydraulic cylinder, the equalizing piston of piston rear end.In balance chamber, be provided with metal-rubber and equalizing piston.Metal-rubber is by certain method, by stretch, spiral helicine wire is stamped to form, metal-rubber has good compressibility and recovery, not fragile.When the volume in hydraulic fluid chamber changes, equalizing piston can move left and right along with piston rod, carrys out the pressure of balanced hydraulic oil pocket by changing balance chamber's inner volume.Orifice valve group in piston is comprised of poppet valve and throttle valve, the speed and the pressure that are used in regulator solution pumping cavity.
Beneficial effect of the present invention is as follows:
1. when additional hydro-cushion chamber is provided, reduced transverse dimension, simple in structure, practical, easy to assembly.
2. because spring is easily damaged parts, in hydro-cushion chamber, metal-rubber is set, the single energy consume mechanism of conventional damper is developed into polynary power consumption, both brought into play the advantage that conventional damper consumes energy by hydraulic pressure, utilize again new metallic material self-resetting ability strong, be difficult for aging characteristic.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the damper for pipe vibration-damping.In figure: 1 spring, 2 piston rods, 3 cylinder barrels, 4 metal-rubbers, 5 equalizing pistons, 6 Sealings, 7 axle sleeves, 8 Sealings, 9 throttle valve, 10 poppet valves, 11 pistons, 12 have rod end chamber, 13 piston-less lumens, 14 viscous fluids, 15 1 valve sets, 16 2 valve sets, 17 balance chamber, 18 fixing ears, 19 fixing ears.
embodiment
Below in conjunction with accompanying drawing, the present invention is further described in detail.
As shown in the figure, the described a kind of damper for pipe vibration-damping of this example comprises the airtight cylinder barrel of cylinder type, is placed in piston rod 2 and the piston 11 of cylinder barrel 3.Piston rod 2 is along axially moving freely, and the both sides of piston are respectively piston-less lumen 13 and have rod end chamber 12, the interior viscous fluid 14 of having filled of cylinder barrel 3, and wherein viscous fluid comprises silicone oil, machinery oil, elastic cement etc.Balance chamber 17 comprises metal-rubber 4 and equalizing piston 5.Between equalizing piston 5 and piston rod 2, axle sleeve 7 is housed, equalizing piston 5 can move freely along with piston rod 2.In order to prevent that the viscous liquid of rod end chamber 12 from leaking, between equalizing piston 5 and cylinder barrel 3, be provided with Sealing 6, between equalizing piston 5 and piston rod 2, be provided with Sealing 8.One of columned piston rod 2 connects 11, one, piston and is connected and fixed ear 18 in cylinder barrel, and external force is transmitted on piston 11 by piston rod 2.Meanwhile, on outer piston bar 2, be provided with spring 1, can alleviate external vibration.Damper rear end has connected fixedly ear 19, can make damper be fixed on support.Four valve sets have been installed on piston 11, have carried out the speed of regulating piston motion.These four groups of valves are all to be composed in parallel by a throttle valve 9 and a poppet valve 10.At four groups of valves of the symmetrical installation of the left and right sides of piston 11 difference.Having rod end chamber 12 1 sides that one valve sets 16 is installed, the opposite direction of the poppet valve of 15, two groups of valves of two valve sets is installed in piston-less lumen 13 1 sides, centre is connected with asphalt channel.Balance chamber 17 and cylinder barrel 3, at the outer wall of same axial Shang, balance chamber 17 outer wall of cylinder barrel 11 namely, have integrality.Along with there being rod end chamber 12 internal pressures to change, equalizing piston 5 also can move freely with balance pressure and Volume Changes.Because damper is single rod type, the Volume Changes that moves up and down Shi Liangge hydraulic chamber is different, and the variation of temperature also can make the viscous liquid volume in cylinder barrel change, and need to carry out control agent product moment by balance chamber 17.Working principle of the present invention is:
When pipeline is under nominal situation, if the piston 11 that piston rod 2 connects moves right, now the viscous fluid of piston-less lumen 13 is compressed, and its movement velocity is less than locking velocity, and the viscous fluid in piston-less lumen 13 has flowed to rod end chamber 12 by valve sets.Now, have rod end chamber 12 to be communicated with by a valve sets, two valve sets with piston-less lumen 13, the spool of valve sets is opened, and when fluid flows through spool, there is no great resistance.Equalizing piston 5 can be along with piston rod 2 directions move freely, viscous liquid in piston-less lumen 13 flows into while having rod end chamber 12, because the volume in the hydraulic chamber of both sides is different, equalizing piston 5 pressurizeds need to store unnecessary viscous liquid 14 and come balance to have the variation of rod end chamber 12 inner volumes.After oil pocket internal pressure is normal, equalizing piston 5 pushes back the viscous fluid of storage 14 in piston-less lumen 13 by the good recovery of metal-rubber 4, and damper can adapt to the slow movement that pipeline causes owing to expanding with heat and contract with cold, and pipeline is not almost had to damping.When pipeline is received moment impact or is periodically vibrated, viscous fluid 14 in piston-less lumen 13 is compressed, its movement velocity is greater than locking velocity, one valve sets 16 plays a major role, spool in one valve sets 16 is compressed, only have damping hole to open, poppet valve opposite direction due to two valve sets 15, spool is not compressed, viscous fluid 14 flows into and has rod end chamber 12 must pass through the damping hole in a valve sets 16 from piston-less lumen 13, now produce larger resistance, thereby reached the effect of vibration damping.When moving direction is contrary, working principle is similar.The resistance that damper produces is transmitted on pipeline by piston rod 2, thereby alleviates vibration.During piston rod 2 motion, 1, spring can absorb resistance, reaches the effect of vibration damping.
Based on above principle, in the coaxial direction of cylinder barrel 3, balance chamber 17 is set, the recovery that metal-rubber 4 has strengthened equalizing piston is set, make damper reduce transverse dimension, simple in structure, not fragile, performance is more stable.

Claims (2)

1. for a damper for pipe vibration-damping, comprise hydraulic cylinder, the piston rod in cylinder barrel and the piston being connected with piston rod, the spring arranging on cylinder barrel outer piston bar, the equalizing piston of piston rear end, the viscous fluid in hydraulic cylinder, makes the outer wall of balance chamber and cylinder barrel outer wall integrated.In balance chamber, be provided with metal-rubber and equalizing piston.Orifice valve in piston is respectively poppet valve and throttle valve, the speed and the pressure that are used in regulator solution pumping cavity.
2. a kind of damper for pipe vibration-damping requiring according to right 1, is characterized in that equalizing piston below is provided with metal-rubber.
CN201310633368.7A 2013-11-29 2013-11-29 Damper used for vibration reduction of pipeline Pending CN103615494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310633368.7A CN103615494A (en) 2013-11-29 2013-11-29 Damper used for vibration reduction of pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310633368.7A CN103615494A (en) 2013-11-29 2013-11-29 Damper used for vibration reduction of pipeline

Publications (1)

Publication Number Publication Date
CN103615494A true CN103615494A (en) 2014-03-05

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170074423A1 (en) * 2013-08-01 2017-03-16 Mark A. Norris Method for suppression of resonant vibrations in subsea pipelines
CN109083962A (en) * 2018-08-22 2018-12-25 安徽信息工程学院 Efficient battery truck damping device
CN109869437A (en) * 2019-03-29 2019-06-11 太原科技大学 A kind of car electromagnetic-sticky consume energy combined damping device and control method
CN111305387A (en) * 2019-12-26 2020-06-19 中国建筑股份有限公司 Compression-shear separation type variable-rigidity rubber support and manufacturing method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3939485A1 (en) * 1989-11-29 1990-04-05 Rainer Dipl Ing Daumann Motor vehicle shock absorber - has device to increase damping force as load on vehicle increases
JPH11315875A (en) * 1998-03-24 1999-11-16 Stabilus Gmbh Vessel with temperature compensated gas filler
US20040134732A1 (en) * 2002-07-27 2004-07-15 Stabilus Gmbh Piston-cylinder unit
CN201021704Y (en) * 2004-09-17 2008-02-13 尤利乌斯·布卢姆有限公司 Flow damper
CN101395333A (en) * 2006-03-01 2009-03-25 黑蒂赫-欧尼有限公司及两合公司 Damper for furniture
CN101427049A (en) * 2006-03-31 2009-05-06 株式会社利富高 Speed response type damper and shock-absorbing damper device
CN102207160A (en) * 2010-03-30 2011-10-05 Zf腓特烈斯哈芬股份公司 Vibration damper with integrated level control

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3939485A1 (en) * 1989-11-29 1990-04-05 Rainer Dipl Ing Daumann Motor vehicle shock absorber - has device to increase damping force as load on vehicle increases
JPH11315875A (en) * 1998-03-24 1999-11-16 Stabilus Gmbh Vessel with temperature compensated gas filler
US20040134732A1 (en) * 2002-07-27 2004-07-15 Stabilus Gmbh Piston-cylinder unit
CN201021704Y (en) * 2004-09-17 2008-02-13 尤利乌斯·布卢姆有限公司 Flow damper
CN101395333A (en) * 2006-03-01 2009-03-25 黑蒂赫-欧尼有限公司及两合公司 Damper for furniture
CN101427049A (en) * 2006-03-31 2009-05-06 株式会社利富高 Speed response type damper and shock-absorbing damper device
CN102207160A (en) * 2010-03-30 2011-10-05 Zf腓特烈斯哈芬股份公司 Vibration damper with integrated level control

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170074423A1 (en) * 2013-08-01 2017-03-16 Mark A. Norris Method for suppression of resonant vibrations in subsea pipelines
US10422442B2 (en) * 2013-08-01 2019-09-24 Lord Corporation Method for suppression of resonant vibrations in subsea pipelines
CN109083962A (en) * 2018-08-22 2018-12-25 安徽信息工程学院 Efficient battery truck damping device
CN109869437A (en) * 2019-03-29 2019-06-11 太原科技大学 A kind of car electromagnetic-sticky consume energy combined damping device and control method
CN111305387A (en) * 2019-12-26 2020-06-19 中国建筑股份有限公司 Compression-shear separation type variable-rigidity rubber support and manufacturing method thereof

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Application publication date: 20140305

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