CN107658824A - A kind of rapid damping bleeder based on air - Google Patents
A kind of rapid damping bleeder based on air Download PDFInfo
- Publication number
- CN107658824A CN107658824A CN201711044184.1A CN201711044184A CN107658824A CN 107658824 A CN107658824 A CN 107658824A CN 201711044184 A CN201711044184 A CN 201711044184A CN 107658824 A CN107658824 A CN 107658824A
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- China
- Prior art keywords
- air
- cylinder
- piston
- wire
- bleeder
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- 238000013016 damping Methods 0.000 title claims abstract description 36
- 230000033001 locomotion Effects 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
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- Fluid-Damping Devices (AREA)
Abstract
A kind of rapid damping bleeder based on air, the bleeder include cylinder barrel, slide bar, bolt, sealing ring, spring bearing, piston, valve；Its operation principle：The pressure and interior energy of increase air are converted into by the kinetic energy of wire, the air dead-beat of high pressure is released.Installed when damping bleeder installation on two wires, due to moving back and forth for wire, band piston moves back and forth, the kinetic energy of wire can constantly change the pressure of air, the guidewire movement of different amplitudes can promote valve gas outlet piston movement to different positions, hole is exposed from small to large successively, and then the air of high pressure is constantly released away, the guidewire movement energy of so different amplitudes all can quickly be released.The damping bleeder is simple in construction, and it is convenient to change, and enables in particular to guidewire movement energy of quickly releasing, and without producing vibration, has longer service life and higher application value.
Description
Technical field
The invention belongs to power network line sports safety field, and in particular to a kind of transmission pressure rapid damping based on air
Bleeder.
Background technology
Transmission line of electricity is under the influence of Different climate condition, particularly UHV transmission line, it may appear that different motions
Amplitude and frequency, generally speaking transmission pressure motion include the three-degree-of-freedom motions such as horizontal, vertical and twisting.But work as motion amplitude
When reaching to a certain degree with frequency, make the increase of conducting wire sag degree, axial stress increase, fatigue limit reduces, and easily causes wire
It is stranded；While insulator chain, cross-arm and tower load can be made to become big, cause insulator swing, cross-arm deformation, shaft tower inclination etc. tight
Weight disaster, great threat is formed to power network safety operation, also directly national economy caused damage.
Existing guidewire movement damper respectively has advantage and disadvantage：Double pendulum damper is applied to split conductor, easy for installation, vibrationproof
Effect is preferable；Inter-phase spacer can be applied to 220kV and the transmission line of electricity of following voltage class, or higher voltage grade is compact
Molded line road, the problems such as aging, electric discharge, bending be present, large amplitude vibration-isolating effect is preferable；It is relatively thin that flow-disturbing damper is mainly used in icing
Area, using split conductor be more than on single conductor, this antihunting device is light, is easily installed, and aging be present, asking of deteriorating
Topic；Eccentric hammer is applied to split conductor, pays attention to the influence to aeolian vibration, and vibration-isolating effect is preferable；Detuning pendulum is on single conductor
Using effective, the application on split conductor requires study；Ballast damper convenient material drawing, can suppress aeolian vibration, the free degree
Greatly, disturbance is easily produced；Cable clip rotary type conductor spacer vibration-isolating effect is good, and circuit will not be had a negative impact, wire clamp revolution
Formula conductor spacer is higher than general interval rod cost.Due to guidewire movement the complex nature of the problem, so existing conventional kinetic damping dress
Put the specific aim in its design and use upper limitation, but existing damper has the shortcomings that general character, wire
Kinergety can not quick release completely fall, some can be come back to wire, produce mutual disturbed motion,
Even accelerate the damage to transmission line of electricity.
Although power network motion includes various complicated motions (amplitude and frequency can all change), prejudicial to power network
Main is exactly the amplitude and frequency of power network motion, and for some specific area, guidewire movement has main amplitude and frequency
Rate, so need damping to fall these kinergeties, designed for this and a kind of the quick of different motion amplitude is damped based on air
Bleeder is damped, vibration will not be produced, stationarity is good.
The content of the invention
It is an object of the invention to design a kind of damper based on air, the motion energy of the wire of releasing of quick and stable
Amount, without producing vibration.
The operation principle of rapid damping bleeder based on air：The pressure of increase air is converted into by the kinetic energy of wire
And interior energy, the air dead-beat of high pressure is released, that is, the energy released will not be again returned on wire, and energy is released song
Line is the very big monotonous curve of negative slope, rather than the curve of releasing of vibration.
A kind of rapid damping bleeder based on air, the bleeder include cylinder barrel, slide bar, bolt, sealing ring, support
Bearing, piston and valve.
Bolt-center perforate, cylinder barrel both ends are fixed on sealing ring and spring bearing, are used to stablize slide bar and make together
Keep being axially moved, sealing ring seals.
When damping bleeder installation, one end of slide bar is arranged on wire, other end connection piston.
Cylinder barrel is divided into three parts by two pistons, and barrel will have certain thickness, can bear multiple atmospheric pressures.
Three valves have air inlet and gas outlet in the centre of cylinder barrel and both ends, valve respectively.
Valve air inlet uses slide post, and there is catch at two, has sealing ring between interior side catch and valve wall, when interior
Portion's atmospheric pressure will block valve air inlet when big, and internal pressure hour outside air can enter valve.
Valve gas outlet includes piston cylinder, piston rod, piston, spring bearing, stage clip or damping cylinder.
The spring bearing of piston cylinder is used for stable plunger bar and keeps being axially moved.
The hole that spacing gradually increases, aperture also gradually increase successively are provided with piston cylinder.
Adjusted if damped using stage clip, select the stage clip of multistage difference coefficient of elasticity, set is on the piston rod；If using
Damping cylinder is adjusted, piston rod both ends connection piston, one end connecting valve gas outlet, one end piston connection damping cylinder.
When cylinder barrel internal pressure subatmospheric is strong, extraneous air can enter cylinder barrel by valve air inlet
It is interior, and when cylinder barrel internal pressure is big, it will the pressure-air in cylinder barrel is released away by valve gas outlet.
Damp bleeder to be arranged on two wires, because the impossible Complete Synchronization of the guidewire movement of reality moves, at this moment
Damping bleeder will work.
When two wire move toward one anothers or nonsynchronous motion in the same direction, wire meeting band moving slide-bar, and then pusher cylinder cylinder
Piston movement, the atmospheric pressure in middle cylinders can increase, and the piston at intervening vaive gas outlet is promoted, being converted by kinetic energy
Fall for the AB Air Bleed of high pressure, and the atmospheric pressure in the cylinder barrel of both ends reduces, the air inlet of both ends valve is pushed up out, can entered
Portion of air.
When two wire opposite directions are moved, wire can pull cylinder barrel piston by slide bar, the sky in middle cylinders cylinder
Air pressure reduces by force, and the air inlet of intervening vaive is pushed up out, and can enter portion of air, at this moment the atmospheric pressure in the cylinder barrel of both ends
Increase, the piston at the valve gas outlet of both ends is promoted, and the AB Air Bleed that high pressure is converted into by kinetic energy is fallen.
Due to moving back and forth for wire, band piston moves back and forth, and the kinetic energy of wire constantly can change in cylinder barrel
Atmospheric pressure, and then the air of high pressure is constantly released away by valve gas outlet.
When atmospheric pressure increase, air internal energy can increase, and when atmospheric pressure reduces, air internal energy meeting
Reduce, and because the air in cylinder barrel and outside air exchange back and forth, air themperature can be held essentially constant in cylinder, that is, be converted
Naturally also just released for that a part of kinetic energy of air internal energy.
Because the kinetic energy conversion of wire can change the pressure and interior energy of cylinder air, and the air of high pressure passes through piston cylinder
Release away, while also discharged most air internal energy, and moving back and forth due to piston, air in cylinder and outer
Boundary's air is exchanged back and forth, and air themperature can be held essentially constant in cylinder, that is, that a part of kinetic energy for being converted into air internal energy is natural
Also just release, so whole kinetic energy of wire are all released.
For the guidewire movement energy of different amplitudes is all released, the gas outlet of valve employs elasticity or damping cylinder
Piston cylinder, and the hole that piston cylinder has a pitch of holes and aperture increases successively, can quickly let out the guidewire movement energy of different amplitudes
Bleed off.
When guidewire movement amplitude is big, the air push piston cylinder piston movement of high pressure, all holes can be all exposed,
When experiencing small oscillating movements, can expose together first hole or with second hole, it is also possible to several holes above, this with it is small
The size of amplitude has relation, when central amplitude is moved, a part of hole above can be exposed, i.e., the guidewire movement of different amplitudes
Valve gas outlet piston movement can be promoted hole to be exposed from small to large successively, so different amplitudes are led to different positions
Line kinergety all can quickly release.
The damping bleeder is simple in construction, and it is convenient to change, and guidewire movement energy of quickly releasing is enabled in particular to, without producing
Raw vibration, has longer service life and higher application value.
Brief description of the drawings
Fig. 1 is the damping bleeder structure based on air of the present invention；
Fig. 2 is valve air inlet of the present invention；
Fig. 3 is the valve gas outlet of elastic damping regulation of the present invention；
Fig. 4 is the valve gas outlet of cylinder damper regulation of the present invention.
Embodiment
A kind of rapid damping bleeder operation principle based on air：The pressure of increase air is converted into by the kinetic energy of wire
Strong and interior energy, and then the AB Air Bleed of high pressure is fallen, below in conjunction with the specific implementation of the brief description of the drawings present invention.
A kind of rapid damping bleeder based on air as shown in Figure 1, the bleeder include cylinder barrel, two slide bars,
Two bolts, two sealing rings, two spring bearings, two pistons and three valves.
To prevent bleeder from bringing kinergety to disturb in itself, the part such as cylinder barrel, slide bar, bolt and piston is using wear-resisting
Light material.
Bolt-center has hole, and cylinder barrel both ends are fixed on sealing ring, spring bearing, is used to stablize slide bar together and makes guarantor
Axial movement is held, sealing ring seals.
Over time, sealing ring may not strictly seal, but not related, similar to valve outlet
Mouthful.
When bleeder actual installation is damped, two slide bar one end are arranged on wire, one end in cylinder barrel
Connect piston.
Cylinder barrel is divided into three parts by two pistons, and cylinder barrel will have certain thickness, can bear multiple atmospheric pressure
By force.
Three valves in the centre of cylinder barrel and end positions, there is air inlet and gas outlet respectively.
For valve air inlet as shown in Fig. 2 using slide post, there is catch at two, has between interior side catch and valve wall
Sealing ring, valve air inlet will be blocked when inner air pressure is big, and internal pressure hour outside air can enter valve.
Valve gas outlet as shown in Figure 3 and Figure 4, including piston cylinder, piston rod, spring bearing, stage clip or damping cylinder.
The spring bearing of piston cylinder is used for stable plunger bar and is axially moved holding.
The hole that spacing gradually increases, aperture also gradually increase successively are provided with piston barrel.
Adjusted if damped using stage clip, i.e., shown in Fig. 3, select the stage clip of multistage difference coefficient of elasticity, be enclosed on piston rod
On；If adjusted using damping cylinder, i.e., shown in Fig. 4, piston rod both ends connection piston, one end connecting valve gas outlet, one end
Piston connects damping cylinder.
When cylinder barrel internal pressure subatmospheric is strong, extraneous air can enter cylinder barrel by valve air inlet
It is interior, and when atmospheric pressure is big in cylinder barrel, it will the pressure-air in cylinder is released away by valve gas outlet.
Damp bleeder to be arranged on two wires, because the impossible Complete Synchronization of the guidewire movement of reality moves, at this moment
Damping bleeder will work.
When two wire move toward one anothers or nonsynchronous motion in the same direction, wire meeting band moving slide-bar, and then pusher cylinder cylinder
Piston movement, the atmospheric pressure in middle cylinders cylinder can increase, and the piston cylinder piston at intervening vaive gas outlet is promoted, and then
The pressure-air being converted into by kinetic energy is released, and the atmospheric pressure in the cylinder barrel of both ends reduces, both ends valve air inlet quilt
Top is opened, and can enter portion of air.
When two wire opposite directions are moved, wire can pull cylinder barrel piston by slide bar, the sky in middle cylinders cylinder
Air pressure reduces by force, and intervening vaive air inlet is pushed up out, and can enter portion of air, and the at this moment atmospheric pressure in the cylinder barrel of both ends
Increase, the piston piston at the valve gas outlet of both ends is promoted, and then the pressure-air being converted into by kinetic energy is released.
Due to moving back and forth for wire, band piston moves back and forth, and the kinetic energy of wire constantly can change in cylinder barrel
Atmospheric pressure, and then the air of high pressure is constantly released away.
When atmospheric pressure increase in cylinder barrel, air internal energy can increase, and when atmospheric pressure reduces, it is empty
Gas interior energy can be reduced, and because air in cylinder and outside air exchange back and forth, air themperature can be held essentially constant in cylinder, that is, be turned
That a part of kinetic energy for turning to air internal energy is naturally also just released.
It can change the pressure and interior energy of air in cylinder barrel because wire moves transformation of energy, and the air of high pressure passes through piston
Cylinder is released away, while has also discharged most air internal energy, and moving back and forth due to cylinder barrel piston, in cylinder barrel
Air and outside air exchange back and forth, air themperature can be held essentially constant in cylinder, that is, be converted into air internal energy that
Transfer naturally also can be released just, so whole kinetic energy of wire are all released.
For the guidewire movement energy of different amplitudes is all released, valve gas outlet employs the work of stage clip or damping cylinder
Plug tube, and have pitch of holes on piston cylinder and a hole that aperture gradually increases, the guidewire movement energy of different amplitudes can be quickly let out
Bleed off.
When guidewire movement amplitude is big, the air push piston cylinder piston movement of high pressure, all holes can be all exposed；
When experiencing small oscillating movements, expose first hole or with second hole, it is also possible to several holes above, this with by a small margin
Size has relation；During central amplitude motion, a part of hole above can be exposed, i.e., the guidewire movement of different amplitudes can promote
Valve gas outlet piston movement from small to large exposes hole, the guidewire movement of so different amplitudes successively to different positions
Energy all can quickly release.
The damping bleeder is simple in construction, and it is convenient to change, and guidewire movement energy of quickly releasing is enabled in particular to, without producing
Raw vibration, has longer service life and higher application value.
What is finally illustrated is that above case study on implementation is merely to illustrate technical scheme and unrestricted, can be to this hair
Bright to modify or change, without departing from the scope of the technical program, it all should cover works as in scope of the presently claimed invention
In.
Claims (6)
1. a kind of rapid damping bleeder based on air, it is characterised in that the bleeder includes：It is cylinder barrel, slide bar, bolt, close
Seal, spring bearing, piston and valve；Bolt-center perforate, cylinder barrel both ends are fixed on sealing ring and spring bearing, together
For stablizing slide bar and being axially moved holding, sealing ring seals；When bleeder is installed, one end of slide bar is arranged on
On wire, other end connection piston；There is valve at the centre of cylinder barrel and end positions, valve has air inlet and gas outlet.
2. a kind of rapid damping bleeder based on air described in claim 1, it is characterised in that valve gas outlet includes：It is living
Plug tube, piston rod, bolt, spring bearing, stage clip or damping cylinder；The bolt and spring bearing of piston cylinder are used for stable plunger bar
And holding is axially moved, the hole that spacing gradually increases, aperture also gradually increase successively are provided with cylinder.
3. the valve gas outlet described in claim 2, it is characterised in that：Adjusted if damped using stage clip, select multistage different
The stage clip of coefficient of elasticity, is enclosed on screw rod；If adjusted using damping cylinder, screw rod both ends connection piston, the connection of one end piston
Damping cylinder.
4. a kind of rapid damping bleeder based on air described in claim 1, it is characterised in that the course of work includes：When two
When root wire move toward one another or nonsynchronous motion in the same direction, wire meeting band moving slide-bar, and then pusher cylinder cylinder piston movement, it is middle
Atmospheric pressure in cylinder can increase, and the piston at intervening vaive gas outlet is promoted, the pressure-air being converted into by kinetic energy
It can release, because pressure reduces, both ends valve air inlet is pushed up out the air in the cylinder of both ends, can enter portion of air；
When two wire opposite directions are moved, wire can pull cylinder barrel piston by slide bar, and the atmospheric pressure in middle cylinders cylinder subtracts
Small, intervening vaive air inlet is pushed up out, and can enter portion of air, at this moment the atmospheric pressure increase in the cylinder barrel of both ends, both ends
Piston at valve gas outlet is promoted, and the pressure-air being converted into by kinetic energy is released；Due to moving back and forth for wire, band
Piston is moved back and forth, and the kinetic energy of wire can constantly change the pressure of air, and the air of cylinder barrel inner high voltage is constantly released
Go out.
5. a kind of rapid damping bleeder based on air described in claim 1, it is characterised in that for the whole of wire is moved
It can release：Because the kinetic energy conversion of wire can change the pressure and interior energy of cylinder air, and the air of high pressure passes through piston
Cylinder is released away, while has also discharged most air internal energy, and moving back and forth due to piston, air in cylinder and
Outside air is exchanged back and forth, and air themperature can be held essentially constant in cylinder, that is, is converted into that a part of kinetic energy of air internal energy certainly
So also just release, so all kinetic energy of wire is all released.
6. a kind of rapid damping bleeder based on air described in claim 1, it is characterised in that to damp different amplitudes
Guidewire movement：Because the gas outlet of valve employs the piston cylinder of elasticity or damping cylinder, and piston cylinder has pitch of holes and hole
The hole that footpath increases successively, the guidewire movements of different amplitudes can promote valve gas outlet piston movement to different positions, successively
Hole is exposed from small to large, and the guidewire movement energy of different amplitudes all can quickly be released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711044184.1A CN107658824B (en) | 2017-10-31 | 2017-10-31 | A kind of rapid damping bleeder based on air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711044184.1A CN107658824B (en) | 2017-10-31 | 2017-10-31 | A kind of rapid damping bleeder based on air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107658824A true CN107658824A (en) | 2018-02-02 |
| CN107658824B CN107658824B (en) | 2019-09-27 |
Family
ID=61095094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711044184.1A Expired - Fee Related CN107658824B (en) | 2017-10-31 | 2017-10-31 | A kind of rapid damping bleeder based on air |
Country Status (1)
| Country | Link |
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| CN (1) | CN107658824B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2787918Y (en) * | 2004-12-24 | 2006-06-14 | 崔惠美 | Cylinder |
| CN102227073A (en) * | 2011-03-01 | 2011-10-26 | 东北电力大学 | Damping spring vibration-proof hammer |
| US20120080279A1 (en) * | 2009-03-19 | 2012-04-05 | Fox Factory, Inc. | Methods and apparatus for sag adjustment |
| CN202719067U (en) * | 2012-07-31 | 2013-02-06 | 常州气弹簧有限公司 | Stepless speed regulation air spring |
| JP2013245807A (en) * | 2012-05-29 | 2013-12-09 | Nifco Inc | Piston damper |
| CN104466861A (en) * | 2013-09-22 | 2015-03-25 | 许昌四达电力设备有限公司 | Device for preventing power transmission line from swinging |
| CN204942374U (en) * | 2015-09-19 | 2016-01-06 | 慈溪市共好汽车饰件有限公司 | A kind of compression type air damper |
-
2017
- 2017-10-31 CN CN201711044184.1A patent/CN107658824B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2787918Y (en) * | 2004-12-24 | 2006-06-14 | 崔惠美 | Cylinder |
| US20120080279A1 (en) * | 2009-03-19 | 2012-04-05 | Fox Factory, Inc. | Methods and apparatus for sag adjustment |
| CN102227073A (en) * | 2011-03-01 | 2011-10-26 | 东北电力大学 | Damping spring vibration-proof hammer |
| JP2013245807A (en) * | 2012-05-29 | 2013-12-09 | Nifco Inc | Piston damper |
| CN202719067U (en) * | 2012-07-31 | 2013-02-06 | 常州气弹簧有限公司 | Stepless speed regulation air spring |
| CN104466861A (en) * | 2013-09-22 | 2015-03-25 | 许昌四达电力设备有限公司 | Device for preventing power transmission line from swinging |
| CN204942374U (en) * | 2015-09-19 | 2016-01-06 | 慈溪市共好汽车饰件有限公司 | A kind of compression type air damper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107658824B (en) | 2019-09-27 |
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Granted publication date: 20190927 |