CN109973745A - A kind of pipe vibration damper based on flow fieldoptimization - Google Patents
A kind of pipe vibration damper based on flow fieldoptimization Download PDFInfo
- Publication number
- CN109973745A CN109973745A CN201711448134.XA CN201711448134A CN109973745A CN 109973745 A CN109973745 A CN 109973745A CN 201711448134 A CN201711448134 A CN 201711448134A CN 109973745 A CN109973745 A CN 109973745A
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- CN
- China
- Prior art keywords
- orifice plate
- sleeve
- gland
- vibration damper
- pipe vibration
- 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
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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
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
- F16L55/02709—Throttle passages in the form of perforated plates
- F16L55/02718—Throttle passages in the form of perforated plates placed transversely
-
- 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
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/041—Devices damping pulsations or vibrations in fluids specially adapted for preventing vibrations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention belongs to pipe vibration-damping technical fields, and in particular to a kind of pipe vibration damper based on flow fieldoptimization.A kind of pipe vibration damper based on flow fieldoptimization includes: orifice plate, sleeve and gland, flange, sealing ring, the orifice plate is fixedly mounted in pipeline, orifice plate is both provided with falcon slot, for cooperating with sleeve, sleeve is mounted between orifice plate and sleeve along inner wall of the pipe, and the both ends of sleeve cooperate with the falcon slot of two orifice plates respectively, and the falcon slot of sleeve one end and orifice plate cooperates, the other end is connect with gland, and gland compresses whole device；Sealing ring is provided between gland and sleeve, for managing interior sealing；Whole device by flanged joint in the duct.The present apparatus is modularized design, convenient for disassembly and assembly, compact-sized, and handling ease can be effectively improved the vibration problem of pipeline.
Description
Technical field
The invention belongs to pipe vibration-damping technical fields, and in particular to a kind of pipe vibration damper based on flow fieldoptimization.
Background technique
Pipe vibration and favourable turn vibration are two big vibration problems of nuclear power plant.It makes a connection and shakes caused by the equipment such as water pump, blower
It moves due to being taken seriously relatively early and being accumulated by years of researches, having had more mature test method at present and diagnosing hand
Section.The pipe vibration that the static equipments such as orifice plate, valve induce is since influence factor is more, still without mature, unified detection skill
Art and method.Since the vibration of favourable turn often causes equipment fault, and the vibration of pipeline may then break through pressure-bearing boundary, cause to leak
The operational safety of system is even influenced, therefore should more be paid attention to, systematic research and reasonable improvement should be more carried out.
Currently, being only capable of particular problem concrete analysis when solving Tube vibration problems, lacking the diagnostic means of system maturation
With method, low efficiency, reliability are low.Therefore it is badly in need of system research pipeline of nuclear power plant vibration problem, exploitation is asked for pipe vibration
The assessment technique and detection method of topic obtain the analyzing and diagnosing that can be used for pipeline of nuclear power plant vibration fault, and provide possible vibration
Source position and the origin cause of formation propose the reasonable measure of vibration and noise reducing.
In consideration of it, the present invention devises a kind of pipe vibration damper based on flow fieldoptimization, this device is modularized design,
Convenient for disassembly and assembly, compact-sized, handling ease can be effectively improved the vibration problem of pipeline.
Summary of the invention
The purpose of the invention is to overcoming shortcoming and defect of the existing technology, provides and a kind of reduce pipe vibration
Device, this device are modularized design, and convenient for disassembly and assembly, compact-sized, handling ease can be effectively improved the vibration problem of pipeline.
Technical scheme is as follows:
A kind of pipe vibration damper based on flow fieldoptimization includes: orifice plate, sleeve and gland, flange, sealing ring, described
Orifice plate is fixedly mounted in pipeline, and orifice plate is both provided with falcon slot, for sleeve cooperate, sleeve along inner wall of the pipe mounted in orifice plate with
Between sleeve, the both ends of sleeve cooperate with the falcon slot of two orifice plates respectively, and the falcon slot of sleeve one end and orifice plate cooperates, the other end with
Gland connection, gland compress whole device；Sealing ring is provided between gland and sleeve, for managing interior sealing；Whole device
In the duct by flanged joint.
A kind of pipe vibration damper based on flow fieldoptimization, the distance between the orifice plate and orifice plate can be by sleeves and sleeve
Length adjustment.
A kind of pipe vibration damper based on flow fieldoptimization, the orifice plate and orifice plate are six hole of second level, and hole is evenly distributed on
In center circumferential.
A kind of pipe vibration damper based on flow fieldoptimization, the aperture in the hole, hole count, hole arrangement mode according to pipeline
Depending on the structural parameters and operating parameter of system, hole count is 4~7.
A kind of pipe vibration damper based on flow fieldoptimization, it is characterised in that: be provided on the sealing surface of the gland
Inverted triangle slot.
A kind of pipe vibration damper based on flow fieldoptimization, the barrel dliameter of the sleeve, length are carried out according to the caliber of pipeline
Adjustment.
The beneficial effects of the present invention are:
(1) due to being modularized design, easy disassembly and replacement can reduce O&M cost, improve the flexibility ratio of device, because
This strong applicability of the invention.
(2) sleeve design can flexible modulation multistage orifice plate grade spacing, it is easy for installation, be easy to adjust and safeguard.
(3) the structure design of multistage orifice plate, relative to traditional single-stage pore plate, flow field diffusivity is good, compact-sized.
(4) it is designed using the structure of flat mouth flange, reduces the disturbance in flow field, reduce processing and manufacturing difficulty.
(5) pipe vibration damper overall construction design is simply exquisite, readily replaceable, maintains easily.
Therefore, apparatus of the present invention have many advantages, such as strong applicability, compact-sized, are simple to manufacture, are easy to maintain.
Detailed description of the invention
Fig. 1 is existing pipe vibration damper key structure schematic diagram；
Fig. 2 is a kind of structural schematic diagram of pipe vibration damper of the present invention；
Fig. 3 is the enlarged view at I in Fig. 2；
Fig. 4 is the enlarged view at II in Fig. 2；
Fig. 5 is enlarged drawing at the III in Fig. 2；
Fig. 6 is the orifice plate figure in Fig. 2；
Fig. 7 is the gland figure in Fig. 2；
Fig. 8 is the set sketch drawing in Fig. 2；
Fig. 9 is the flange figure in Fig. 2；
In figure: 1. flanges；2. pipeline；3. sleeve；4. orifice plate；5. sleeve；6. orifice plate；7. gland；8. sealing ring.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Specific embodiment is as follows:
As shown in Fig. 2, a kind of pipe vibration damper based on flow fieldoptimization includes: orifice plate 4 and orifice plate 6, sleeve 3 and sleeve
5, gland 7, flange 1, sealing ring 8.
Orifice plate 6 and orifice plate 4 are fixedly mounted in pipeline 2, and orifice plate 6 and orifice plate 4 are both provided with falcon slot, for matching with sleeve
It closes, sleeve 5 is mounted between orifice plate 6 and sleeve 3 along 2 inner wall of pipeline, and falcon slot of the both ends of sleeve 5 respectively with orifice plate 6 and orifice plate 4 is matched
It closes, the falcon slot of 3 one end of sleeve and orifice plate 4 cooperates, and the other end is connect with gland 7, and gland 7 compresses whole device.Gland 7 and set
It is provided with sealing ring 8 between cylinder 3, for managing interior sealing.Whole device is connected in 2 system of pipeline by flange 1.
The distance between orifice plate 4 and orifice plate 6 can be by the length adjustments of sleeve 5 and sleeve 3, while cooperating gland 7 and sealing
Circle 8 realizes sealing in dismounting and pipe.
As shown in fig. 6, orifice plate 4 and orifice plate 6 are six hole of second level, hole is evenly distributed in center circumferential, in actual use, hole
Diameter, hole count, hole arrangement mode be varied, specific aperture, aperture according to the structural parameters and operating parameter of pipe-line system
Mode is determined that common hole count n is advisable with 4~7 by Flow Field Calculation.
As shown in figure 4, the effect of gland 7 is to realize the axially position and compression of orifice plate and sleeve, while staying on sealing surface
There are 3 inverted triangle slots to reinforce sealing effect.
As shown in figure 5, sleeve is conveniently detachable, roll adjustment can be facilitated, the barrel dliameter of sleeve, length according to the caliber of pipeline 2 into
Row adjustment.
As shown in Fig. 2, flange is used for connecting pipe vibration absorber and pipe-line system, to reduce the resistance of ducting, a mouthful method of making even
It is blue.
The fluid of pipe vibration damper upstream is when flowing through orifice plate, and by the local resistance of resistance of ducting part, flow field is shunk,
Flow velocity increases, and static pressure reduces, and in pipe vibration damper downstream, flow field is restored, but because of the flow-disturbing of local resistance part, exists certain
Crushing, pressure reduction to design pressure.Due to the disturbance of pipeline local resistance part stream field, lead to pressure fluctuation, velocity fluctuation,
To generate big pipe vibration and noise.The present invention reduces pressure fluctuation, the speed in flow field by the principle of step pressure reducing
Pulsation, to reduce pipe vibration.
Pressure drop size caused by pipe vibration damper is by the structural parameters such as flow velocity, aperture, hole arrangement mode, grade spacing and fortune
The influence of row parameter.
Claims (6)
1. a kind of pipe vibration damper based on flow fieldoptimization includes: orifice plate 4 and orifice plate 6, sleeve 3 and sleeve 5, gland 7, flange
1, sealing ring 8, it is characterised in that: the orifice plate 6 and orifice plate 4 are fixedly mounted in pipeline 2, and orifice plate 6 and orifice plate 4 are both provided with falcon
Slot, for sleeve cooperate, sleeve 5 along 2 inner wall of pipeline be mounted between orifice plate 6 and sleeve 3, the both ends of sleeve 5 respectively with orifice plate 6
Cooperate with the falcon slot of orifice plate 4, the falcon slot of 3 one end of sleeve and orifice plate 4 cooperates, and the other end is connect with gland 7, and gland 7 will be filled entirely
Set compression；Sealing ring 8 is provided between gland 7 and sleeve 3, for managing interior sealing；Whole device is connected to pipeline 2 by flange 1
In.
2. a kind of pipe vibration damper based on flow fieldoptimization as described in claim 1, it is characterised in that: 4 He of orifice plate
The distance between orifice plate 6 can be by the length adjustment of sleeve 5 and sleeve 3.
3. a kind of pipe vibration damper based on flow fieldoptimization as described in claim 1, it is characterised in that: 4 He of orifice plate
Orifice plate 6 is six hole of second level, and hole is evenly distributed in center circumferential.
4. a kind of pipe vibration damper based on flow fieldoptimization as claimed in claim 3, it is characterised in that: the hole in the hole
Diameter, hole count, hole arrangement mode depending on the structural parameters of pipe-line system and operating parameter, hole count be 4~7.
5. a kind of pipe vibration damper based on flow fieldoptimization as described in claim 1, it is characterised in that: the gland (7)
Sealing surface on be provided with 3 inverted triangle slots.
6. a kind of pipe vibration damper based on flow fieldoptimization as described in claim 1, it is characterised in that: the cylinder of the sleeve
Diameter, length are adjusted according to the caliber of pipeline 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711448134.XA CN109973745A (en) | 2017-12-27 | 2017-12-27 | A kind of pipe vibration damper based on flow fieldoptimization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711448134.XA CN109973745A (en) | 2017-12-27 | 2017-12-27 | A kind of pipe vibration damper based on flow fieldoptimization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109973745A true CN109973745A (en) | 2019-07-05 |
Family
ID=67071788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711448134.XA Pending CN109973745A (en) | 2017-12-27 | 2017-12-27 | A kind of pipe vibration damper based on flow fieldoptimization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109973745A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4516606A (en) * | 1983-02-16 | 1985-05-14 | Exxon Research And Engineering Co. | Variable orifice valve assembly |
| KR20000019266U (en) * | 1999-04-07 | 2000-11-06 | 남상건 | Flange device for pipe connecting |
| JP2001193713A (en) * | 2000-01-13 | 2001-07-17 | Yamatake Corp | Orifice plate |
| JP2002349515A (en) * | 2001-05-23 | 2002-12-04 | Mitsubishi Heavy Ind Ltd | Multi-stage orifice |
| CN2585003Y (en) * | 2002-11-19 | 2003-11-05 | 河南上蝶阀门股份有限公司 | Limit expansion joint |
| CN202733309U (en) * | 2012-07-25 | 2013-02-13 | 温州市达安仪表厂 | Multi-stage throttling orifice plate group |
| CN203604748U (en) * | 2013-11-29 | 2014-05-21 | 东营冠林石油科技有限公司 | Pressure reducing and flow limiting device |
| CN204153362U (en) * | 2014-05-12 | 2015-02-11 | 马鞍山宏力橡胶制品有限公司 | Sealing flange pad |
| CN206369047U (en) * | 2016-12-03 | 2017-08-01 | 许川 | A kind of material filling type Pipe leakage stopper |
| CN208651940U (en) * | 2017-12-27 | 2019-03-26 | 核动力运行研究所 | A kind of pipe vibration damper based on flow fieldoptimization |
-
2017
- 2017-12-27 CN CN201711448134.XA patent/CN109973745A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4516606A (en) * | 1983-02-16 | 1985-05-14 | Exxon Research And Engineering Co. | Variable orifice valve assembly |
| KR20000019266U (en) * | 1999-04-07 | 2000-11-06 | 남상건 | Flange device for pipe connecting |
| JP2001193713A (en) * | 2000-01-13 | 2001-07-17 | Yamatake Corp | Orifice plate |
| JP2002349515A (en) * | 2001-05-23 | 2002-12-04 | Mitsubishi Heavy Ind Ltd | Multi-stage orifice |
| CN2585003Y (en) * | 2002-11-19 | 2003-11-05 | 河南上蝶阀门股份有限公司 | Limit expansion joint |
| CN202733309U (en) * | 2012-07-25 | 2013-02-13 | 温州市达安仪表厂 | Multi-stage throttling orifice plate group |
| CN203604748U (en) * | 2013-11-29 | 2014-05-21 | 东营冠林石油科技有限公司 | Pressure reducing and flow limiting device |
| CN204153362U (en) * | 2014-05-12 | 2015-02-11 | 马鞍山宏力橡胶制品有限公司 | Sealing flange pad |
| CN206369047U (en) * | 2016-12-03 | 2017-08-01 | 许川 | A kind of material filling type Pipe leakage stopper |
| CN208651940U (en) * | 2017-12-27 | 2019-03-26 | 核动力运行研究所 | A kind of pipe vibration damper based on flow fieldoptimization |
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