CN106556456A - A kind of converter valve tower vibrations monitoring system - Google Patents
A kind of converter valve tower vibrations monitoring system Download PDFInfo
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- CN106556456A CN106556456A CN201611047587.7A CN201611047587A CN106556456A CN 106556456 A CN106556456 A CN 106556456A CN 201611047587 A CN201611047587 A CN 201611047587A CN 106556456 A CN106556456 A CN 106556456A
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- speculum
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 40
- 210000003141 lower extremity Anatomy 0.000 claims abstract description 12
- 230000005622 photoelectricity Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 15
- 230000003287 optical effect Effects 0.000 abstract description 3
- 238000011897 real-time detection Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000005670 electromagnetic radiation Effects 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The embodiment of the invention discloses a kind of converter valve tower vibrations monitoring system, including：Speculum, photosensitive screen, lasing light emitter, optical-electrical converter and vibration monitoring equipment, wherein：Speculum includes the first speculum and the second speculum for being arranged on two adjacent lower limbs of converter valve tower, is flexibly connected with the lower limb of corresponding converter valve tower；Photosensitive screen includes first photosensitive screen and the second photosensitive screen of the light for the first speculum of reception and the reflection of the second speculum；Lasing light emitter includes first laser source and the second laser source being arranged in the corresponding valve Room bottom surface of converter valve bottom of towe face；Optical-electrical converter includes the first optical-electrical converter and the second optical-electrical converter for electrically connecting with the first photosensitive screen and the second photosensitive screen respectively；Vibration monitoring equipment is electrically connected with the first optical-electrical converter and the second optical-electrical converter.The moving displacement that the application can be produced with the vibration of real-time detection converter valve tower using optical reflection principle, the accurately vibration of monitoring converter valve tower.
Description
Technical field
The present invention relates to power system monitoring technical field, more particularly to a kind of converter valve tower vibrations detecting system.
Background technology
Converter valve is the nucleus equipment in DC transmission system, and converter valve includes many kinds, and wherein transistor converter valve is
A kind of the most frequently used converter valve.As the resistance to voltage levels of the single IGCT of transistor converter valve are limited, take in Practical Project
Multiple thyristor valves are composed in series valve section, and valve section is assembled into change of current valve group, and valve group stacking connection forms converter valve tower, the change of current
Valve tower is usually to be suspended at the top of the valve Room.Converter valve at a high speed (Millisecond) can open shut-off high current when working, therefore can be
Around produce very strong high frequency electromagnetic radiation, simultaneously because high current is frequently opened shut-off and can produce the electric stress of complexity and causes
The vibration of converter valve.The vibrated conference of converter valve produces many detrimental effects, such as causes the loosening of mechanical part, optical fiber to connect
The shake of head, the loosening of converter valve water-cooled interface etc., these unfavorable factors gently then cause the mistake of signal to send out weight then affects converter valve
Life-span.
Based on the problems referred to above, at present the monitoring of change of current Valve Vibration is used based on Electromagnetic Vibrating Sensor.In the change of current
Before valve work, Electromagnetic Vibrating Sensor is arranged on the shell of converter valve, when converter valve is started working, installed in changing
Electromagnetic Vibrating Sensor on stream valve shell can real-time monitoring converter valve Vibration Condition, and by the vibration data of converter valve
Receiving platform is transferred to, the monitoring to change of current Valve Vibration is completed.
But very strong high frequency electromagnetic radiation can be produced when working due to change of current valve group around, but electromagnetic vibration is passed
Sensor directly cannot work under this high frequency electromagnetic radiation, it is necessary to arrange through technical difficulty, relatively costly anti-interference process
Apply, if Electromagnetic Vibrating Sensor receives the interference of electromagnetic radiation,
Cannot accurate measurements converter valve Vibration Condition.
The content of the invention
A kind of converter valve tower vibrations detecting system is provided in the embodiment of the present invention, to solve in prior art to converter valve
The inaccurate problem of vibration monitoring.
In order to solve above-mentioned technical problem, the embodiment of the invention discloses following technical scheme：
A kind of converter valve tower vibrations monitoring system, including：Speculum, photosensitive screen, lasing light emitter, optical-electrical converter and vibration
Monitoring device, wherein：
The speculum includes that the first speculum and the second speculum, first speculum and second speculum set
Put in two adjacent lower limbs of converter valve tower, first speculum and second speculum with corresponding converter valve tower
Lower limb be flexibly connected；
The photosensitive screen includes the first photosensitive screen and the second photosensitive screen, first photosensitive screen and described second
Photosensitive screen is used for the light for receiving first speculum and second speculum reflection；
The lasing light emitter includes that first laser source and second laser source, the first laser source and second laser source are respectively provided with
In the corresponding valve Room bottom surface of converter valve bottom of towe face；
The optical-electrical converter includes the first optical-electrical converter and the second optical-electrical converter, first optical-electrical converter and
Second optical-electrical converter is electrically connected with first photosensitive screen and second photosensitive screen respectively；
The vibration monitoring equipment is electrically connected with first optical-electrical converter and second optical-electrical converter.
Preferably, first photosensitive screen and second photosensitive screen are respectively at first speculum and described
The corresponding converter valve tower side of two-mirror is parallel, and first photosensitive screen and second photosensitive screen are arranged on the change of current
Outside below valve tower.
Preferably, the minute surface of first speculum and second speculum is identical with the angle of horizontal plane.
Preferably, the light-emitting window in the first laser source and the second laser source is perpendicular to horizontal plane, and described first
Light-emitting window direction of the light-emitting window of lasing light emitter towards the angle and the second laser source formed with first mirror mirror
It is identical with the angle that the minute surface of second speculum is formed.
Preferably, first photosensitive screen and second photosensitive screen are provided with fixed support, and described first is photosensitive
Screen and second photosensitive screen are flexibly connected with the fixed support.
Preferably, also including alarm, the alarm is electrically connected with the vibration monitoring equipment.
From above technical scheme, a kind of converter valve tower vibrations monitoring system provided in an embodiment of the present invention, including：Instead
Mirror, photosensitive screen, lasing light emitter, optical-electrical converter and vibration monitoring equipment are penetrated, wherein：The speculum include the first speculum and
Second speculum, first speculum and second speculum are arranged on two adjacent lower limbs of converter valve tower, described
First speculum is flexibly connected with the lower limb of corresponding converter valve tower with second speculum；The photosensitive screen includes
First photosensitive screen and the second photosensitive screen, first photosensitive screen and second photosensitive screen are used to receive described first
Speculum and the light of second speculum reflection；The lasing light emitter includes first laser source and second laser source, described
One lasing light emitter and second laser source are arranged in the corresponding valve Room bottom surface of converter valve bottom of towe face；The optical-electrical converter includes
One optical-electrical converter and the second optical-electrical converter, first optical-electrical converter and second optical-electrical converter respectively with it is described
First photosensitive screen and second photosensitive screen electrical connection；The vibration monitoring equipment and first optical-electrical converter and institute
State the electrical connection of the second optical-electrical converter.The application can be produced with the vibration of real-time detection converter valve tower using optical reflection principle
Moving displacement, the accurately vibration of monitoring converter valve tower.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, on the premise of not paying creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is a kind of structural representation of converter valve tower vibrations monitoring system provided in an embodiment of the present invention；
Fig. 2 is the structural representation of a kind of first speculum provided in an embodiment of the present invention and the first photosensitive screen arrangement；
Fig. 3 is a kind of schematic diagram of converter valve tower up-down vibration mirror displacements provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of converter valve tower side-to-side vibrations mirror displacements provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of oscillating mirror displacement before and after a kind of converter valve tower provided in an embodiment of the present invention；
In Fig. 1-5, symbol is expressed as：
The first speculums of 1-, the second speculums of 2-, the first photosensitive screens of 3-, the second photosensitive screens of 4-, 5- first lasers source,
6- second lasers source, the first smooth Denso parallel operations of 7-, the second smooth Denso parallel operations of 8-, 9- vibration monitoring equipment, 10- alarms.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, below in conjunction with of the invention real
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described enforcement
Example is only a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, this area is common
The every other embodiment obtained under the premise of creative work is not made by technical staff, should all belong to protection of the present invention
Scope.
Referring to Fig. 1, it is a kind of structural representation of converter valve tower vibrations monitoring system provided in an embodiment of the present invention, such as schemes
Shown in 1, the system includes：First speculum 1, the second speculum 2, the first photosensitive screen 3, the second photosensitive screen 4, first laser
Source 5, second laser source 6, the first smooth Denso parallel operation 7, the second smooth Denso parallel operation 8, vibration monitoring equipment 9 and alarm 10.
First speculum 1 and second speculum 2 are arranged on two adjacent lower limbs of converter valve tower, and described
One speculum 1 is flexibly connected with the lower limb of corresponding converter valve tower with second speculum 2；First speculum 1
It is identical with the angle of horizontal plane with the minute surface of second speculum 2, as shown in Fig. 2 preferred described first in the present embodiment
Speculum 1 is 45 degree with the angle of horizontal plane, from the foregoing, second speculum 2 is also 45 degree with the angle of horizontal plane.
First photosensitive screen 3 and second photosensitive screen 4 are used to receive first speculum 1 and described second
The light of the reflection of speculum 2；First photosensitive screen 3 and second photosensitive screen 4 respectively with first speculum 1 and
Second speculum, 2 corresponding converter valve tower side is parallel, and first photosensitive screen 3 and second photosensitive screen 4
The outside being arranged on below converter valve tower.First photosensitive screen 3 and second photosensitive screen 4 are provided with fixed support,
First photosensitive screen 3 and second photosensitive screen 4 are flexibly connected with the fixed support.
The first laser source 5 and second laser source 6 are arranged in the corresponding valve Room bottom surface of converter valve bottom of towe face, described
The light-emitting window in first laser source 5 and the second laser source 6 is perpendicular to horizontal plane, and the light-emitting window court in the first laser source 5
To light-emitting window direction and described second reflection of the angle and the second laser source 6 formed with 1 minute surface of the first speculum
The angle that the minute surface of mirror 2 is formed is identical.Assume according to the first speculum 1 described above and second speculum 2 minute surface with
45 degree of the angle position of horizontal plane, then the light-emitting window in the first laser source 5 is towards the angle formed with 1 minute surface of the first speculum
The light-emitting window in degree and the second laser source 6 is 45 degree towards the angle that the minute surface with second speculum 2 is formed.So
Through first speculum 1 laser beam perpendicular to first photosensitive screen 3, swashing through second speculum 2
Light light is perpendicular to second photosensitive screen 4.
First optical-electrical converter 7 and second optical-electrical converter 8 respectively with first photosensitive screen 4 and described
Second photosensitive screen 4 is electrically connected.The vibration monitoring equipment 9 and first optical-electrical converter 7 and second opto-electronic conversion
Device 8 is electrically connected, and the alarm 10 is electrically connected with the vibration testing equipment 9, if converter valve tower vibrations exceed normal range (NR),
Send warning.
As shown in figure 3, for a kind of schematic diagram of converter valve tower up-down vibration mirror displacements provided in an embodiment of the present invention,
When converter valve tower occurs up-down vibration, as shown in figure 3, first speculum 1 being arranged on converter valve tower and described the
Two-mirror 2 can then be moved.Laser on first photosensitive screen 3 and second photosensitive screen 4 is reflexed to equally
The displacement L1=L2 that light occurs, the displacement information of generation can pass through the described first smooth Denso parallel operation 7 and the second smooth Denso respectively
Parallel operation 8 is converted to electric signal transmission to vibration monitoring equipment 9.
A kind of schematic diagram of converter valve tower side-to-side vibrations mirror displacements provided in an embodiment of the present invention is illustrated in figure 4,
When converter valve tower side-to-side vibrations, as shown in figure 4, only second speculum 2 is reflexed on second photosensitive screen 4
The displacement of the laser beam displacement information produced on L3, therefore second photosensitive screen 4 that changes can pass through second respectively
Light Denso parallel operation 8 is converted to electric signal transmission to vibration monitoring equipment 9.
The schematic diagram of oscillating mirror displacement before and after a kind of converter valve tower provided in an embodiment of the present invention is illustrated in figure 5,
When vibrating before and after converter valve tower, as shown in figure 5, only first speculum 1 is reflexed on first photosensitive screen 3
The displacement of the laser beam displacement information produced on L4, therefore first photosensitive screen 3 that changes can pass through first respectively
Light Denso parallel operation 7 is converted to electric signal transmission to vibration monitoring equipment 9.
Vibration testing equipment 9 receives the telecommunications sent from the described first smooth Denso parallel operation 7 and the second smooth Denso parallel operation 8
After number, the vibration of valve tower is reflected in inside by Oscillating Coefficients formula, and real-time monitoring can obtain shaking for the normal operation of converter valve
Once vibrating and deviateing normal interval, dynamic interval, just can determine whether that exception occurs in converter valve.Now alarm 10 can also sound, operation
Personnel can pinpoint the problems in time, to take treatment measures.
From above-described embodiment, a kind of converter valve tower vibrations monitoring system provided in an embodiment of the present invention, including：First
Speculum 1, the second speculum 2, the first photosensitive screen 3, the second photosensitive screen 4, first laser source 5, second laser source 6, the first light
Denso parallel operation 7, the second smooth Denso parallel operation 8, vibration monitoring equipment 9 and alarm 10.First speculum 1 and described second anti-
Penetrate mirror 2 and be arranged on two adjacent lower limbs of converter valve tower, first speculum and second speculum with it is corresponding
The lower limb of converter valve tower is flexibly connected；First photosensitive screen 3 and second photosensitive screen 4 are used to receive described first
Speculum 1 and the light of second speculum 2 reflection；The first laser source 5 and second laser source 6 are arranged at converter valve
In the bottom surface of the corresponding valve Room in bottom of towe face；First optical-electrical converter 7 and second optical-electrical converter 8 are respectively with described first
Photosensitive screen 3 and second photosensitive screen 4 are electrically connected；The vibration monitoring equipment 9 and first optical-electrical converter 7 and institute
State the second optical-electrical converter 8 to electrically connect, the alarm 10 is used to send warning.The application can be real using optical reflection principle
When detect moving displacement that the vibration of converter valve tower is produced, the accurately vibration of monitoring converter valve tower, once converter valve tower vibrations
Deviate normal interval and just can determine whether that exception occurs in converter valve.Now alarm 10 can also sound.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
Individual entity or operation are made a distinction with another entity or operation, and are not necessarily required or implied these entities or operate it
Between there is any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to
Cover including for nonexcludability, so that a series of process, method, article or equipment including key elements not only includes those
Key element, but also including other key elements being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that
Also there is other identical element in the process including the key element, method, article or equipment.
The above is only the specific embodiment of the present invention, is made skilled artisans appreciate that or realizing this
It is bright.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (6)
1. a kind of converter valve tower vibrations monitoring system, it is characterised in that include：Speculum, photosensitive screen, lasing light emitter, photoelectricity turn
Parallel operation and vibration monitoring equipment, wherein：
The speculum includes the first speculum (1) and the second speculum (2), first speculum (1) and described second anti-
Penetrate mirror (2) and be arranged on two adjacent lower limbs of converter valve tower, first speculum (1) is with second speculum (2)
It is flexibly connected with the lower limb of corresponding converter valve tower；
The photosensitive screen includes the first photosensitive screen (3) and the second photosensitive screen (4), first photosensitive screen (3) and institute
The second photosensitive screen (4) is stated for receiving the light that first speculum (1) and second speculum (2) reflect；
The lasing light emitter includes first laser source (5) and second laser source (6), the first laser source (5) and second laser source
(6) it is arranged in the corresponding valve Room bottom surface of converter valve bottom of towe face；
The optical-electrical converter includes the first optical-electrical converter (7) and the second optical-electrical converter (8), first optical-electrical converter
(7) it is electrically connected with first photosensitive screen (3) and second photosensitive screen (4) with second optical-electrical converter (8) respectively
Connect；
The vibration monitoring equipment (9) is electrically connected with first optical-electrical converter (7) and second optical-electrical converter (8).
2. converter valve tower vibrations monitoring system according to claim 1, it is characterised in that first photosensitive screen (3)
With second photosensitive screen (4) converter valve tower corresponding with first speculum (1) and second speculum (2) respectively
Side is parallel, and first photosensitive screen (3) and second photosensitive screen (4) are arranged on the outside below converter valve tower.
3. converter valve tower vibrations monitoring system according to claim 2, it is characterised in that first speculum (1) and
The minute surface of second speculum (2) is identical with the angle of horizontal plane.
4. converter valve tower vibrations monitoring system according to claim 1, it is characterised in that the first laser source (5) and
The light-emitting window of the second laser source (6) is perpendicular to horizontal plane, and the light-emitting window in the first laser source (5) is towards with described the
Angle and the light-emitting window direction in the second laser source (6) and second speculum (2) that one speculum (1) minute surface is formed
The angle that minute surface is formed is identical.
5. converter valve tower vibrations monitoring system according to claim 1, it is characterised in that first photosensitive screen (3)
Second photosensitive screen (4) is provided with fixed support, first photosensitive screen (3) and second photosensitive screen (4)
It is flexibly connected with the fixed support.
6. the converter valve tower vibrations monitoring system according to any one of claim 1-5, it is characterised in that also including alarm
(10), the alarm (10) is electrically connected with the vibration monitoring equipment (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611047587.7A CN106556456A (en) | 2016-11-22 | 2016-11-22 | A kind of converter valve tower vibrations monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611047587.7A CN106556456A (en) | 2016-11-22 | 2016-11-22 | A kind of converter valve tower vibrations monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN106556456A true CN106556456A (en) | 2017-04-05 |
Family
ID=58444660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611047587.7A Pending CN106556456A (en) | 2016-11-22 | 2016-11-22 | A kind of converter valve tower vibrations monitoring system |
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| CN (1) | CN106556456A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107703424A (en) * | 2017-08-18 | 2018-02-16 | 许继集团有限公司 | A kind of valve tower monitor and the converter valve using the monitor |
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| CN104483007A (en) * | 2014-11-19 | 2015-04-01 | 华北电力大学（保定） | Overhead power transmission line vibration monitoring system and method |
| CN205079856U (en) * | 2015-10-23 | 2016-03-09 | 周学龙 | A on -line monitoring system for measuring aerogenerator vibration |
| CN206177451U (en) * | 2016-11-22 | 2017-05-17 | 云南电网有限责任公司电力科学研究院 | Change of current valve tower vibration monitoring devices |
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2016
- 2016-11-22 CN CN201611047587.7A patent/CN106556456A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04303760A (en) * | 1991-03-30 | 1992-10-27 | Ngk Insulators Ltd | Device for measuring vibration of attachment of steel tower |
| CN1119736A (en) * | 1994-06-21 | 1996-04-03 | 株式会社拓普康 | Surveying system |
| CN1256755A (en) * | 1998-03-09 | 2000-06-14 | Otm技术有限公司 | Optical translation measurement |
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| CN103424177A (en) * | 2013-09-11 | 2013-12-04 | 南京大学 | Method and device for improving sensitivity of reflecting-type laser vibration measurement system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107703424A (en) * | 2017-08-18 | 2018-02-16 | 许继集团有限公司 | A kind of valve tower monitor and the converter valve using the monitor |
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Application publication date: 20170405 |