CN203657979U - Direct current converter station converter valve tower water leakage detection device - Google Patents
Direct current converter station converter valve tower water leakage detection device Download PDFInfo
- Publication number
- CN203657979U CN203657979U CN201320878186.1U CN201320878186U CN203657979U CN 203657979 U CN203657979 U CN 203657979U CN 201320878186 U CN201320878186 U CN 201320878186U CN 203657979 U CN203657979 U CN 203657979U
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- optical fiber
- valve tower
- laser
- water leakage
- converter valve
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- 238000001514 detection method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000013307 optical fiber Substances 0.000 claims abstract description 58
- 241000736911 Turritella communis Species 0.000 claims description 9
- 230000005684 electric field Effects 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229940085805 fiberall Drugs 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The utility model relates to a direct current converter station converter valve tower water leakage detection device. According to the direct current converter station converter valve tower water leakage detection device, a control signal input end of a laser transmitter is connected with a control signal output end of a single chip microcomputer; a laser signal output end of the laser transmitter is connected with one end of a first optical fiber; a laser signal receiving end of a laser receiver is connected with one end of a second optical fiber; an electric signal output end of the laser receiver is connected with a signal input end of the single chip microcomputer; an alarm signal output end of the single chip microcomputer is connected with an alarm; the other end of the first optical fiber and the other end of the second optical fiber respectively extend into a shell of a converter valve tower; the other end of the first optical fiber and the other end of the second optical fiber face a reflector; a first gap is left between the other end of the first optical fiber and the reflector; a second gap is left between the other end of the second optical fiber and the reflector; and a side surface of the other end of the first optical fiber is attached to a side surface of the other end of the second optical fiber. The direct current converter station converter valve tower water leakage detection device generates optical signals in the valve tower, and therefore, the strong electric field of a converter valve will not disturb the device, and water leakage detection delay can be avoided.
Description
Technical field
The utility model relates to high-voltage direct-current transmission system detection technique field, refers to particularly a kind of DC converter station Water leakage detection device of valve tower of converter valve.
Technical background
Converter valve is the nucleus equipment of DC converter station, and valve tower is the physical support of converter valve.Converter valve can produce amount of heat in the time of work, must use water cooling system to lower the temperature to converter valve.There is the risk of cooling water leakage in converter valve cooling system long-time running, need to detect valve tower water leakage fault.The existing valve tower detection mode of leaking adopts float-ball type detection mode, and this detection mode arranges ball float in the bottom of valve tower, and in the time that valve tower leaks, the relative position of ball float can rise, and touches alarm actuating contact, realizes the warning that valve tower leaks.Converter valve is operated in the strong electric field environment higher than 500KV voltage, can produce certain interference to light current alarm circuit.And what leak at valve tower is early stage due to the less position that can not change ball float that leaks, and makes testing result have certain time delay.In addition, ball float is arranged on valve tower shell inside, and after long-time use, the quality of ball float cannot be identified, can not realize the self-inspection of detection system.
Utility model content
The purpose of this utility model will provide a kind of DC converter station Water leakage detection device of valve tower of converter valve exactly, this valve tower leakage inspector can not be subject to the interference of converter valve highfield, can detect in real time the situation of leaking of valve tower, and leakage inspector also has self-checking function simultaneously.
For realizing this object, the DC converter station Water leakage detection device of valve tower of converter valve that the utility model is designed, it comprises laser pickoff, generating laser, single-chip microcomputer, the first optical fiber, the second optical fiber, alarm and the reflective mirror that is arranged on converter valve tower shell inner bottom surface, wherein, the control signal input end of described generating laser connects the control signal output terminal of single-chip microcomputer, the laser signal output terminal of generating laser connects one end of the first optical fiber, the laser signal receiving end of laser pickoff connects one end of the second optical fiber, the electrical signal of laser pickoff connects the signal input part of single-chip microcomputer, the alarm signal output ends of single-chip microcomputer connects alarm, the other end of described the first optical fiber and the second optical fiber all stretches into converter valve tower shell inside, the other end of described the first optical fiber and the second optical fiber is arranged to reflective mirror, between the other end of described the first optical fiber and reflective mirror, be provided with the first gap, between the other end of described the second optical fiber and reflective mirror, be provided with the second gap, the side of the side of the described first optical fiber other end and the second optical fiber other end fits together.
In the utility model work, in the time that valve tower is water-tight, the first optical fiber is to reflective mirror Emission Lasers, and laser is received by the second optical fiber after reflective mirror scattering.In the time that valve tower leaks, mirror surface can form moisture film, the first optical fiber is to reflective mirror Emission Lasers, because can making laser, the effect of moisture film produces certain refraction, when receiving like this laser signal that receives of optical fiber and not leaking, can change, single-chip microcomputer obtains starting alarm equipment alarm after this variable signal.
The utility model is all light signals in valve tower inside, the highfield of converter valve can not produce any interference to it, simultaneously, as long as having a bit, valve tower leaks on a small quantity, will produce moisture film in mirror surface, whether the utility model just can leak by the real-time valve tower that detects like this, and not having leaks detects the situation of time delay.By detection fiber, whether conducting just can realize the self-inspection of the utility model test section simultaneously.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Wherein, 1-laser pickoff, 2-generating laser, 3-single-chip microcomputer, 4-the first optical fiber, 5-the second optical fiber, 6-converter valve tower shell, 7-reflective mirror, 8-alarm, 9-the first gap, 10-the second gap.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
DC converter station Water leakage detection device of valve tower of converter valve shown in Fig. 1, it comprises laser pickoff 1, generating laser 2, single-chip microcomputer 3, the first optical fiber 4, the second optical fiber 5, alarm 8 and the reflective mirror 7 that is arranged on converter valve tower shell 6 inner bottom surface, wherein, the control signal input end of described generating laser 2 connects the control signal output terminal of single-chip microcomputer 3, the laser signal output terminal of generating laser 2 connects one end of the first optical fiber 4, the laser signal receiving end of laser pickoff 1 connects one end of the second optical fiber 5, the electrical signal of laser pickoff 1 connects the signal input part of single-chip microcomputer 3, the alarm signal output ends of single-chip microcomputer 3 connects alarm 8, the other end of described the first optical fiber 4 and the second optical fiber 5 all stretches into converter valve tower shell 6 inside, the other end of described the first optical fiber 4 and the second optical fiber 5 is arranged to reflective mirror 7, between the other end of described the first optical fiber 4 and reflective mirror 7, be provided with the first gap 9, between the other end of described the second optical fiber 5 and reflective mirror 7, be provided with the second gap 10, the side of the side of described first optical fiber 4 other ends and second optical fiber 5 other ends fits together.
In technique scheme, the first gap 9 between the other end of described the first optical fiber 4 and reflective mirror 7 equals the second gap 10 between the other end and the reflective mirror 7 of the second optical fiber 5.
In technique scheme, described the first gap 9 and the second gap 10 are 1～3cm.
In technique scheme, described reflective mirror 7 is positioned at the minimum point of converter valve tower shell 6 inside.
When the utility model detects, single-chip microcomputer 3 control generating laser 2 by the first optical fiber 4 to reflective mirror 7 respectively transmission frequency be the laser of 5KHz, 10KHZ and 100KHz, above-mentioned laser signal has the second optical fiber 5 to receive after reflective mirror 7, and converting electric signal to by laser pickoff 1, electric signal transmission is to single-chip microcomputer 3.This electric signal has characterized laser signal, when electric signal characterize laser signal decay higher than in advance design threshold value time, illustrate that DC converter station converter valve tower leaks, single-chip microcomputer 3 is controlled alarm 8 and is reported to the police.Above-mentioned different laser frequency can prevent undetected and situation flase drop.
The content that instructions is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (3)
1. a DC converter station Water leakage detection device of valve tower of converter valve, it comprises laser pickoff (1), generating laser (2), single-chip microcomputer (3), the first optical fiber (4), the second optical fiber (5), alarm (8) and be arranged on the reflective mirror (7) of converter valve tower shell (6) inner bottom surface, wherein, the control signal input end of described generating laser (2) connects the control signal output terminal of single-chip microcomputer (3), the laser signal output terminal of generating laser (2) connects one end of the first optical fiber (4), the laser signal receiving end of laser pickoff (1) connects one end of the second optical fiber (5), the electrical signal of laser pickoff (1) connects the signal input part of single-chip microcomputer (3), the alarm signal output ends of single-chip microcomputer (3) connects alarm (8), the other end of described the first optical fiber (4) and the second optical fiber (5) all stretches into converter valve tower shell (6) inside, the other end of described the first optical fiber (4) and the second optical fiber (5) is arranged to reflective mirror (7), between the other end of described the first optical fiber (4) and reflective mirror (7), be provided with the first gap (9), between the other end of described the second optical fiber (5) and reflective mirror (7), be provided with the second gap (10), the side of the side of described the first optical fiber (4) other end and the second optical fiber (5) other end fits together.
2. DC converter station Water leakage detection device of valve tower of converter valve according to claim 1, is characterized in that: the first gap (9) between the other end of described the first optical fiber (4) and reflective mirror (7) equals the second gap (10) between the other end and the reflective mirror (7) of the second optical fiber (5).
3. DC converter station Water leakage detection device of valve tower of converter valve according to claim 1, is characterized in that: described the first gap (9) and the second gap (10) are 1～3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878186.1U CN203657979U (en) | 2013-12-27 | 2013-12-27 | Direct current converter station converter valve tower water leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878186.1U CN203657979U (en) | 2013-12-27 | 2013-12-27 | Direct current converter station converter valve tower water leakage detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203657979U true CN203657979U (en) | 2014-06-18 |
Family
ID=50924356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320878186.1U Expired - Lifetime CN203657979U (en) | 2013-12-27 | 2013-12-27 | Direct current converter station converter valve tower water leakage detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203657979U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296952A (en) * | 2014-09-28 | 2015-01-21 | 许继电气股份有限公司 | Direct-current transmission converter valve tower and water leakage detection system thereof |
| CN105060373A (en) * | 2015-09-11 | 2015-11-18 | 合肥美菱环保设备技术有限公司 | Leakage-proof structure of water purifier |
| CN105466650A (en) * | 2014-09-28 | 2016-04-06 | 国家电网公司 | System for monitoring DC converter valve water leakage |
| CN105699016A (en) * | 2016-03-14 | 2016-06-22 | 国家电网公司 | Total reflection-based converting plant coolant leakage detection system and detection method |
| CN106644290A (en) * | 2015-07-28 | 2017-05-10 | 南京南瑞继保电气有限公司 | Valve tower water leakage detector based on refraction principle |
| CN106706217A (en) * | 2015-07-15 | 2017-05-24 | 南京南瑞继保电气有限公司 | Water leakage detection device for high-voltage converter |
| CN108801562A (en) * | 2018-03-31 | 2018-11-13 | 特变电工新疆新能源股份有限公司 | A kind of flexible direct current transmission converter valve valve tower leakage inspector and method |
| CN112781795A (en) * | 2019-11-07 | 2021-05-11 | 许继集团有限公司 | Water leakage detection device for converter valve |
-
2013
- 2013-12-27 CN CN201320878186.1U patent/CN203657979U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296952A (en) * | 2014-09-28 | 2015-01-21 | 许继电气股份有限公司 | Direct-current transmission converter valve tower and water leakage detection system thereof |
| CN105466650A (en) * | 2014-09-28 | 2016-04-06 | 国家电网公司 | System for monitoring DC converter valve water leakage |
| CN106706217A (en) * | 2015-07-15 | 2017-05-24 | 南京南瑞继保电气有限公司 | Water leakage detection device for high-voltage converter |
| CN106644290A (en) * | 2015-07-28 | 2017-05-10 | 南京南瑞继保电气有限公司 | Valve tower water leakage detector based on refraction principle |
| CN105060373A (en) * | 2015-09-11 | 2015-11-18 | 合肥美菱环保设备技术有限公司 | Leakage-proof structure of water purifier |
| CN105699016A (en) * | 2016-03-14 | 2016-06-22 | 国家电网公司 | Total reflection-based converting plant coolant leakage detection system and detection method |
| CN108801562A (en) * | 2018-03-31 | 2018-11-13 | 特变电工新疆新能源股份有限公司 | A kind of flexible direct current transmission converter valve valve tower leakage inspector and method |
| CN108801562B (en) * | 2018-03-31 | 2024-05-17 | 特变电工新疆新能源股份有限公司 | Flexible direct-current transmission converter valve tower water leakage detection device and method |
| CN112781795A (en) * | 2019-11-07 | 2021-05-11 | 许继集团有限公司 | Water leakage detection device for converter valve |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |