CN201569553U - Water leakage monitoring device of direct current converter valve - Google Patents
Water leakage monitoring device of direct current converter valve Download PDFInfo
- Publication number
- CN201569553U CN201569553U CN2009202774853U CN200920277485U CN201569553U CN 201569553 U CN201569553 U CN 201569553U CN 2009202774853 U CN2009202774853 U CN 2009202774853U CN 200920277485 U CN200920277485 U CN 200920277485U CN 201569553 U CN201569553 U CN 201569553U
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- Prior art keywords
- water leakage
- hole
- leakage monitoring
- converter valve
- optical
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- 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.)
- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000012806 monitoring device Methods 0.000 title claims abstract description 14
- 230000003287 optical effect Effects 0.000 claims abstract description 59
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Images
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model discloses a water leakage monitoring device of a direct current converter valve, in particular to a cooling water leakage detecting device of the direct current converter valve of an electrical power system. A water collecting device is arranged at the bottom of the direct current converter valve and comprises a water collecting bucket, a floating body and a sunshade board, wherein the sunshade board is provided with a light transmission hole; an optical transmitter and an optical receiver are respectively arranged at both sides of the light transmission hole; and the optical transmitter and the optical receiver are connected with a water leakage monitoring logic circuit on a valve base electronic (VBE) by an optical cable. When the water leakage monitoring device of the technical scheme works, the external energy is not needed, no electronic device exists in the components, only simple mechanical parts exist; the water leakage monitoring device is characterized by simple structure, high reliability and the like, can monitor the water leakage condition of the direct current converter valve and gives out alarming or tripping signals according to the water leakage condition.
Description
Technical field
The utility model relates to a kind of leakage inspector, is specifically related to a kind of chilled water leakage inspector of electric system DC converter valve.
Background technology
DC converter valve is the nucleus equipment of DC transmission engineering, and by successively three-phase alternating voltage being connected to DC terminal DC voltage that obtains expecting and the control that realizes power, its value accounts for 22～25% of current conversion station set of equipments total price.DC converter valve is in operational process, and its inner saturable reactor, thyristor, damping resistance, direct current equalizing resistance produce bigger power consumption, make equipment heating serious; Must adopt certain cooling technology to guarantee the safe and reliable operation of DC converter valve for this reason.Early stage DC converter valve adopts air-cooled and oil cooling, and the two all has bigger shortcoming.Air-cooledly can't satisfy present high-capacity direct current converter valve equipment, oil cooling makes the DC converter valve valve Room be difficult to guarantee cleaning, and transformer station requires no oiling at present.The last decade DC converter valve has adopted Water Cooling Technology, than air-cooled and oil cooling very big advantage is arranged all in all fields.The chilled water total volume has great influence to the DC converter valve radiating effect, and under the constant prerequisite of chilled water flow velocity, the DC converter valve heat-sinking capability is directly proportional with the chilled water total volume.But because DC converter valve cooling water pipe joint is a lot, and the inner cooling water pipe of DC converter valve mostly is nonmetal water pipe, heating radiator is aluminum products, the DC converter valve electric current is not a steady state value, the variation of electric current causes water temperature to change, though water-cooling system can be regulated according to the valve inflow temperature, the valve cooling water temperature also has some fluctuations under the nominal situation, and DC converter valve also has startup and stop phase, the huge variation of cooling water temperature generation this moment.Because cooling water pipe is different with radiator material, the expansion coefficient difference, being in operation to make the DC converter valve cooling water pipe leak,, may cause DC converter valve overheated, influence DC converter valve safety, even cause DC converter valve to be forced to stop transport.
For guaranteeing that the DC converter valve cooling water system normally moves, all used DC converter valve water leakage monitoring technology at present.Traditional DC converter valve water leakage monitoring equipment is installed in the DC converter valve tower bottom, and DC converter valve water leakage monitoring equipment is active equipment, monitors DC converter valve when leaking, and sends to valve base electronics (VBE) equipment and reports to the police or trip signal.Because the DC converter valve tower bottom is in noble potential, for active water leakage monitoring equipment provides relatively difficulty of energy; Usually adopt the mode that swashs light delivery to provide required energy for water leakage monitoring equipment for this reason.But swash light delivery mode cost height, the water leakage monitoring device electronics is many, has the possibility of fault.If adopt electromagnetism to send the energy mode, then, abandon because isolation voltage is very high usually because the DC converter valve tower bottom is the highest position of direct-current transmission voltage.
The utility model content
For solving DC converter valve laser detector cost height in the prior art, the problem that electronic unit is many, the utility model provides a kind of no electron device, the simple converter valve leakage inspector of pure mechanical realization, concrete scheme is as follows, a kind of DC converter valve water leakage monitoring device, comprise optical cable, optical transmitting set and optical receiver, it is characterized in that, described DC converter valve bottom is equipped with captation, described captation comprises dust-collecting bucket, buoyancy aid and shadow shield, on the described shadow shield light hole is arranged, described optical transmitting set and optical receiver are installed in the both sides of light hole, and described optical transmitting set and optical receiver are connected with water leakage monitoring logical circuit 4 on the valve base electronics (VBE) by optical cable.
Another optimal way of the present utility model: described optical transmitting set and optical receiver have two covers, described light hole comprises warning hole, tripping operation hole, warning hole, tripping operation hole shape are strip, the length in tripping operation hole is greater than the length in warning hole, and described two cover optical transmitting sets are installed in the warning hole respectively with optical receiver and are connected with described water leakage monitoring logical circuit with the two ends in tripping operation hole and by optical cable.
Another optimal way of the present utility model: and top parallel with the longitudinal axis of shadow shield, the long limit in described tripping operation hole and warning hole is positioned at same horizontal level.
Another optimal way of the present utility model: described warning hole and tripping operation hole are positioned on the same vertical axis.
Another optimal way of the present utility model: described buoyancy aid and shadow shield are integral type.
Another optimal way of the present utility model: described dust-collecting bucket is the pit on the converter valve pedestal.
This programme is installed a captation in the bottom of DC converter valve, in captation, settle buoyancy aid, cooperate what that leak, the buoyancy aid corresponding height that promptly rises, utilize the light emission, receive principle, the light hole of shadow shield is along with the light trap that is communicated with is lived in the rising meeting of water level on the buoyancy aid, and can the height decision shadow shield of water level see through light signal, thus measured leak how much.Logical circuit just sends trip signal when warning hole and tripping operation Kong Junwu return signal, has reduced the possibility of malfunction greatly.Need not external energy during the water leakage monitoring equipment work of this programme, without any electron device, have only simple mechanical part in the parts, have simple in structure and characteristics such as reliability height, can monitor the DC converter valve situation of leaking, provide according to the serious situation of leaking and report to the police or trip signal.
Description of drawings
Fig. 1 the utility model structural representation
Fig. 2 the utility model shadow shield warning hole, the different position of opening synoptic diagram in tripping operation hole
Embodiment
As shown in Figure 1, the DC converter valve water leakage monitoring device of this programme can be divided into two parts by its installation site, what be installed in the DC converter valve tower bottom is the probe portion that leaks, comprise dust-collecting bucket 1, buoyancy aid 2, shadow shield 3, two cover optical transmitting sets 8, optical receiver 9, wherein have two holes on the shadow shield 3, be divided into warning hole 6 by the rank of reporting to the police, tripping operation hole 7, warning hole 6 and tripping operation hole 7 all are the rectangle hole, and tripping operation hole 7 is longer than warning hole 6, can embody different warning effects like this, and adopt rectangle or similar hole, and can allow light in an amplitude, to rock, just can send corresponding alerting signal when surpassing with amplitude.Buoyancy aid 2 is installed in the dust-collecting bucket 1, and shadow shield 3 is installed on the buoyancy aid 2, the two ends that are installed in warning hole 8 and tripping operation hole 9 respectively that optical transmitting set 8 and optical receiver 9 are paired.Another part is water leakage monitoring logical circuit 4 parts, be installed in valve base electronics (VBE) side, be in earth potential, be connected with optical transmitting set 8, optical receiver 9 by optical cable 5, logical circuit 4 sends the pulse signal that frequency is 20Hz, pass on the optical receiver 9 by optical cable 5, light signal is passed to again on the optical transmitting set 8 of warning hole 6, tripping operation hole 7 other ends by optical receiver 9, optical transmitting set 8 can feed back to logical circuit 4 after receiving signal again, form a loop, this device utilizes the break-make in light signal loop to judge whether to leak.
Dust-collecting bucket in this programme can be a container, also can directly open a pit on DC converter valve tower bottom pedestal, forms the pools zone, again parts such as buoyancy aid is installed the inside.
Buoyancy aid in this programme and shadow shield can be made of one formula.
In the judgement of logical circuit, can set light and connect and be alerting signal, also can establishing is blocked is alerting signal, only needs a change shadow shield to get final product.The warning hole, the tripping operation hole the position multiple arrangement can be arranged, as the warning hole, the tripping operation hole the top be positioned on the same horizontal level, this moment report to the police the hole, the tripping operation hole long limit parallel with the longitudinal axis of shadow shield; Also warning hole, tripping operation hole can be arranged on the upper and lower of the same longitudinal axis of shadow shield.Optical transmitting set, optical receiver all lay respectively at the both sides in warning hole, tripping operation hole in the above embodiment, when the position relation in warning hole, tripping operation hole changes, the position that only needs to change optical transmitting set, optical receiver gets final product, as long as can make the light between optical transmitting set and the optical receiver realize being communicated with or blocking.
This device course of work is as follows:
Normal condition: at first the water leakage monitoring logical circuit from valve base electronics (VBE) sends the pulse signal that frequency is 20Hz, through high voltage optical cable signal is delivered on the optical receiver of DC converter valve tower bottom.If light signal is by warning hole, tripping operation hole, then the optical transmitting set of the other end can feed back to this signal on the water leakage monitoring logic card of valve base electronics (VBE), shows that all are normal.
Alarm condition: if DC converter valve leaks, then water can be raised buoyancy aid, and then shadow shield raises, the warning hole that the light that optical receiver sends is risen is gradually blocked, the optical transmitting set of the warning hole other end can not receive light signal, when the water leakage monitoring logical circuit does not receive the light signal of warning hole optical transmitting set feedback, but can receive the signal of tripping operation Kong Yiduan optical transmitting set feedback the time, will send alerting signal.
Trip condition: if DC converter valve leaks, then water can be raised buoyancy aid, this moment, shadow shield raise, raising of water level makes shadow shield that the light signal that warning hole, the optical receiver of tripping operation Kong Yiduan send is all blocked, the warning hole can not receive light signal with the optical transmitting set of the tripping operation hole other end, when the water leakage monitoring logical circuit does not receive the light signal that warning hole and tripping operation hole optical transmitting set return simultaneously, will send trip signal.
Claims (6)
1. DC converter valve water leakage monitoring device, comprise optical cable (5), optical transmitting set (8) and optical receiver (9), it is characterized in that, in the DC converter valve bottom captation is installed, described captation comprises dust-collecting bucket (1), buoyancy aid (2) and shadow shield (3), described shadow shield has light hole on (3), described optical transmitting set (8) and optical receiver (9) are installed in the both sides of light hole, and optical transmitting set (8) and optical receiver (9) are connected with water leakage monitoring logical circuit (4) on the valve base electronics (VBE) by optical cable (5).
2. water leakage monitoring device as claimed in claim 1, it is characterized in that, described optical transmitting set (8) and optical receiver (9) have two covers, described light hole comprises warning hole (6), tripping operation hole (7), warning hole (6), tripping operation hole (7) are shaped as strip, the length in tripping operation hole (7) is greater than the length of warning hole (6), and described two cover optical transmitting sets (8) are installed in the two ends in warning hole (6) and tripping operation hole (7) respectively with optical receiver (9) and are connected with described water leakage monitoring logical circuit (4) by optical cable (5).
3. water leakage monitoring device as claimed in claim 2 is characterized in that, and top parallel with the longitudinal axis of shadow shield (3), the long limit of described tripping operation hole (7) and warning hole (6) is positioned at same horizontal level.
4. water leakage monitoring device as claimed in claim 2 is characterized in that, described warning hole (6) and tripping operation hole (7) are positioned on the same vertical axis.
5. as claim 3 or 4 described water leakage monitoring devices, it is characterized in that described buoyancy aid (2) is an integral type with shadow shield (3).
6. water leakage monitoring device as claimed in claim 5 is characterized in that, described dust-collecting bucket (1) is the pit on the converter valve pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202774853U CN201569553U (en) | 2009-11-27 | 2009-11-27 | Water leakage monitoring device of direct current converter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202774853U CN201569553U (en) | 2009-11-27 | 2009-11-27 | Water leakage monitoring device of direct current converter valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201569553U true CN201569553U (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202774853U Expired - Lifetime CN201569553U (en) | 2009-11-27 | 2009-11-27 | Water leakage monitoring device of direct current converter valve |
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| CN (1) | CN201569553U (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519689A (en) * | 2011-11-30 | 2012-06-27 | 许继集团有限公司 | Water leakage detection device of valve tower of converter valve |
| CN103033323A (en) * | 2012-12-11 | 2013-04-10 | 国网智能电网研究院 | Novel optical fiber type leakage detector used for direct-current converter valve |
| WO2014014356A1 (en) | 2012-07-17 | 2014-01-23 | Aker Subsea As | Subsea leak-detection system |
| CN103884473A (en) * | 2014-02-18 | 2014-06-25 | 北京国电富通科技发展有限责任公司 | Water leakage determination method for water cooling system |
| CN105221402A (en) * | 2015-11-06 | 2016-01-06 | 国家电网公司 | High voltage direct current converter valve constituent recycle pump leakage detection method and device |
| 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 |
| CN107063382A (en) * | 2017-03-07 | 2017-08-18 | 中国南方电网有限责任公司超高压输电公司曲靖局 | The real-time estimation method of cold water in convertor station elevated tank liquid level |
| CN107817072A (en) * | 2016-09-13 | 2018-03-20 | 南京南瑞继保电气有限公司 | A kind of high-voltage commutation valve valve tower leakage inspector |
| 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 |
| CN110307940A (en) * | 2019-06-21 | 2019-10-08 | 许继集团有限公司 | Converter valve valve tower and its leakage inspector |
| CN112165242A (en) * | 2020-09-24 | 2021-01-01 | 国网冀北电力有限公司检修分公司 | Control protection system of high-voltage flexible converter valve and protection method and device thereof |
| CN112781795A (en) * | 2019-11-07 | 2021-05-11 | 许继集团有限公司 | Water leakage detection device for converter valve |
| CN113532771A (en) * | 2021-06-10 | 2021-10-22 | 中国南方电网有限责任公司超高压输电公司 | Water leakage detection system for power transmission converter valve and monitoring and fault replacement method |
| WO2024055364A1 (en) * | 2022-09-14 | 2024-03-21 | 云南电网有限责任公司楚雄供电局 | Sensor for detecting water leakage of converter valve |
-
2009
- 2009-11-27 CN CN2009202774853U patent/CN201569553U/en not_active Expired - Lifetime
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519689A (en) * | 2011-11-30 | 2012-06-27 | 许继集团有限公司 | Water leakage detection device of valve tower of converter valve |
| CN102519689B (en) * | 2011-11-30 | 2015-03-04 | 许继电气股份有限公司 | Water leakage detection device of valve tower of converter valve |
| WO2014014356A1 (en) | 2012-07-17 | 2014-01-23 | Aker Subsea As | Subsea leak-detection system |
| CN104471189A (en) * | 2012-07-17 | 2015-03-25 | 阿克海底公司 | Subsea leak-detection system |
| CN104471189B (en) * | 2012-07-17 | 2017-08-08 | 阿克海底公司 | Seabed leak detection system |
| EP2875211A4 (en) * | 2012-07-17 | 2016-05-18 | Aker Subsea As | Subsea leak-detection system |
| US9650887B2 (en) | 2012-07-17 | 2017-05-16 | Aker Subsea As | Subsea leak-detecting system |
| CN103033323A (en) * | 2012-12-11 | 2013-04-10 | 国网智能电网研究院 | Novel optical fiber type leakage detector used for direct-current converter valve |
| CN103033323B (en) * | 2012-12-11 | 2014-12-31 | 国网智能电网研究院 | Novel optical fiber type leakage detector used for direct-current converter valve |
| CN103884473A (en) * | 2014-02-18 | 2014-06-25 | 北京国电富通科技发展有限责任公司 | Water leakage determination method for water cooling system |
| CN103884473B (en) * | 2014-02-18 | 2016-08-17 | 北京国电富通科技发展有限责任公司 | A kind of determination methods of leaking of water-cooling system |
| 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 |
| CN105221402A (en) * | 2015-11-06 | 2016-01-06 | 国家电网公司 | High voltage direct current converter valve constituent recycle pump leakage detection method and device |
| CN107817072A (en) * | 2016-09-13 | 2018-03-20 | 南京南瑞继保电气有限公司 | A kind of high-voltage commutation valve valve tower leakage inspector |
| CN107063382A (en) * | 2017-03-07 | 2017-08-18 | 中国南方电网有限责任公司超高压输电公司曲靖局 | The real-time estimation method of cold water in convertor station elevated tank liquid level |
| 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 |
| CN110307940A (en) * | 2019-06-21 | 2019-10-08 | 许继集团有限公司 | Converter valve valve tower and its leakage inspector |
| CN112781795A (en) * | 2019-11-07 | 2021-05-11 | 许继集团有限公司 | Water leakage detection device for converter valve |
| CN112165242A (en) * | 2020-09-24 | 2021-01-01 | 国网冀北电力有限公司检修分公司 | Control protection system of high-voltage flexible converter valve and protection method and device thereof |
| CN112165242B (en) * | 2020-09-24 | 2021-07-23 | 国网冀北电力有限公司检修分公司 | Control protection system of high-voltage flexible converter valve and protection method and device thereof |
| CN113532771A (en) * | 2021-06-10 | 2021-10-22 | 中国南方电网有限责任公司超高压输电公司 | Water leakage detection system for power transmission converter valve and monitoring and fault replacement method |
| WO2024055364A1 (en) * | 2022-09-14 | 2024-03-21 | 云南电网有限责任公司楚雄供电局 | Sensor for detecting water leakage of converter valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140321 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140321 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100192 HAIDIAN, BEIJING TO: 100031 XICHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140321 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: China Electric Power Research Institute Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute |
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| CX01 | Expiry of patent term |
Granted publication date: 20100901 |
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| CX01 | Expiry of patent term |