CN202547888U - Water leakage test paper - Google Patents
Water leakage test paper Download PDFInfo
- Publication number
- CN202547888U CN202547888U CN2012202031424U CN201220203142U CN202547888U CN 202547888 U CN202547888 U CN 202547888U CN 2012202031424 U CN2012202031424 U CN 2012202031424U CN 201220203142 U CN201220203142 U CN 201220203142U CN 202547888 U CN202547888 U CN 202547888U
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- fire retardant
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- water leakage
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Abstract
The utility model discloses water leakage test paper which is used for detecting whether water cooling equipment of a valve hall of a high-voltage DC (direct current) transmission converter station leaks water. The water leakage test paper comprises flame-retardant paper and an ink layer sprayed on the flame-retardant paper; the flame-retardant paper is colored; and the ink layer is of color different from the color of the flame-retardant paper and becomes a transparent ink layer in water. The water leakage detection paper is attached to a shielding layer of a valve tower of the converter station; in the case of water leakage and even very little water leakage of a cold water pipe in the valve tower, after being affected with water, the ink layer on the water leakage test paper becomes transparent to expose the color of the flame-retardant paper below, and the condition of water leakage can be sensitively detected; and meanwhile, the area showing the color of the flame-retardant paper is a water leakage area, and the position of water leakage can be accurately fixed.
Description
Technical field
The utility model relates to a kind of checkout equipment, is specifically related to a kind of detection test paper that leaks whether high voltage DC power transmission converter station valve Room water cooling equipment leaks that is used to detect.
Background technology
The valve cooling system is a most important backup system in the DC transmission engineering, and the converter valve cooling system all adopts water-cooling pattern in present most of DC transmission engineering.Its normal operation is the necessary condition that guarantees the transverter reliability service; In case valve tower inner cold water pipe leakage occurs; Stable operation to whole straight-flow system will cause very big threat, and very likely burn out the valve tower, greatly influence the energy available rate of straight-flow system; Cause the serious accident of having a power failure on a large scale, produce abominable social influence.
The valve tower leakage inspector of at present the inner cold water pipe leakage situation of valve cooling system being monitored is as shown in Figure 1.When leaking appears in the valve tower; Water droplet is fallen in the water tank 3 of leakage inspector of valve tower bottom; Water level rises and will drive float 4 risings, and float 4 detects hole 5 blocking-up detection fiber signals in uphill process, install corresponding the leak alarm of I section, the II section of leaking trip signal.Testing process is following:
(1) water level rises to step1 during the stage, and expression is existing leaks, and the light signal of detection fiber is blocked, and device is promptly sent out the I section alarm signal of leaking;
(2) light sends or during the oscillator fault, sends out alarm signal;
(3) water level continues to rise, and begins when reaching spout hole 6 to overflow to drop onto ground, the valve Room, if it is not serious to leak; Water leakage is less than the spilling water amount; Float 4 will can not continue to rise, and the II section of leaking detection signal can normally return through bar hole, and device can not sent out the II section trip signal that leaks;
(4) leak more seriously, float 4 will continue to rise and reach step2 during the stage, the light signal of blocking-up II section detection fiber; When step1 and step2 occur simultaneously; Expression is existing leaks (greater than 15L/h) in a large number, and oscillator and light transmission simultaneously is in proper working order, sends out trip signal; Through the outlet of direct current protecting interface screen, stoppage in transit straight-flow system.
Above-mentioned detection device is sensitive inadequately, and only the many Shi Caineng that leaks of inner cold water pipeline appearance monitor in the valve Room.When situation that leaking on a small quantity appears in the valve tower; The operations staff can only patrol and examine through the scene (because valve Room internal light is darker; Patrol and examine and often be difficult to find), and on control and monitor console, observe expansion tank water level, inner cold water pipeline pressure, small pump startup situation etc. and judge whether the valve tower situation of leaking occurs.These monitorings mode of leaking all belongs to indirect mode, only occurs carrying out analysis-by-synthesis when leaking in a large number at the valve tower and just can make accurate judgement, is unfavorable for the timely processing of accident.When leaking, often be difficult to find that this brings very big potential safety hazard for normal operation of valve Room equipment as if or trace a small amount of when the appearance of valve tower.
Even if after observing expansion tank water level, inner cold water pipeline pressure, small pump startup situation; When judging the valve tower and leaking; Because valve tower inner cold water is a pure water; Water white transparency is unfavorable for that very the maintainer searches leakage point rapidly, and this brings big difficulty and obstruction to service work and rapid telegram in reply.
The utility model content
The deficiency that the utility model exists to the prior art leakage inspector; A kind of detection test paper that leaks is provided; Detect test paper the cold water pipe of valve cooling system is leaked when detecting using this leaking; The situation of leaking can be when having trace to leak, just detected, the position that leaks can be confirmed simultaneously accurately.
The utility model is realized through following technical scheme: a kind of detection test paper that leaks comprises fire retardant papers and is sprayed on the ink lay on the fire retardant papers; Fire retardant papers is the fire retardant papers that has color; Ink lay is that color is different from fire retardant papers, and this color chance water can become transparent ink lay; Through video monitoring technology monitoring test paper variable color situation.
Through being detected test paper, leaking of the utility model be attached on the cold water pipe screen layer of valve cooling system; When the cold water pipe screen layer leaks, or even during the leaking of trace, leak and detect printing ink on the test paper and meet water and become transparent; The color of exposing following fire retardant papers; Just can be the very sensitive situation of leaking that detects, the zone that manifests the fire retardant papers color simultaneously is the zone that leaks, and also can confirm the position that leaks accurately.
Preferably, ink lay is transparent for chance water becomes, and water is done the ink lay that original color is recovered in the back.Use this ink lay, after the cold water pipe screen layer was got rid of the situation of leaking, the detection test paper that leaks can be done the back at water and recover original ink colors, and need not change the detection test paper that leaks.
Preferably, fire retardant papers is the pure color fire retardant papers, preferred red fire retardant papers, and said ink lay is the pure color ink lay, the preferred white ink lay.
Preferably, fire retardant papers is that flammability reaches flame retardancy or non-flame properties fire retardant papers.To reach better flame retardant effect.
Description of drawings
Fig. 1 is a leakage inspector structural diagrams intention in the prior art;
Fig. 2 is that the utility model leaks and detects test paper decomposition texture synoptic diagram;
Fig. 3 is that the utility model leaks and detects the design sketch of detection paper when the cold water pipe screen layer leaks.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
Of Fig. 2, the detection test paper that leaks of the utility model comprises fire retardant papers 10 and is sprayed on the ink lay 11 on the fire retardant papers 10; Fire retardant papers 10 is for having the fire retardant papers of color; Ink lay 11 is for color is different from fire retardant papers, and this color chance water can become transparent ink lay.
This fire retardant papers 10 and the printing ink that detects test paper that leaks is purchased conveniently, and spraying coating process is simple, while printing ink excellent adsorption on fire retardant papers, and difficult drop-off, so this detection test paper that leaks is made simply stable performance.
As shown in Figure 3, detect test paper through leaking and be attached on the current conversion station valve tower screen layer 12, when cold water pipe screen layer 12 leaks; Or even the trace leak the time; The printing ink that detects ink lay 11 on the test paper of leaking is met water and is become transparently, exposes the color of following fire retardant papers 10, just very sensitivity detect the situation of leaking; The regional A that manifests fire retardant papers 10 colors simultaneously is the zone that leaks, and also can confirm the position that leaks accurately.After using leaking of the utility model to detect test paper; Through video monitoring technology and the daily tour of operations staff; Can in time find the valve tower inner cold water water pipe situation of leaking; With potential safety hazard and straight-flow system operation risk in advance control at utmost reduce the harm of leaking and causing in the initial period of accident to valve Room equipment because of valve tower water pipe, and effectively reduce and cause the probability of DC system locking because of valve tower inner cold water leaks.On the other hand; When situation appears leaking in the valve Room; The maintainer can be according to the rapid Search and Orientation leakage point in variable color position; Save valve tower inner cold water water pipe leakage accident processing time and telegram in reply time, effectively improve the energy available rate of straight-flow system, further improve the security and the economy of DC transmission system.
Preferably, ink lay 11 is transparent for chance water becomes, and water is done the ink lay that original color is recovered in the back.Use this ink lay, after cold water pipe screen layer 12 was got rid of the situation of leaking, the detection test paper that leaks can be done the back at water and recover original ink colors, and need not change the detection test paper that leaks.Cause ink lay to become Transparent color when valve tower inner cold water pipe leakage and expose the color of fire retardant papers, to send the information that screen layer leaks.After eliminating water leakage fault, printing ink can revert to original color, does not need to change again the valve tower screen layer detection test paper that leaks.When leaking, can not cause the operations staff to judge valve tower inner cold water pipe leakage by accident for valve tower inner cold water pipeline contingency.
For reaching better detection effect; Fire retardant papers 10 should adopt the fire retardant papers of pure color; Preferred red, like this printing ink on ink lay 11 meet water become transparent after, the color of exposing fire retardant papers is for red; And redness is very bright-coloured and obvious, helps the staff when patrolling and examining, to find the situation of leaking timely and confirms the position that leaks.Ink lay 11 should adopt pure color, preferred white equally.The detection test paper that leaks of selecting for use white printing ink to process when dress is attached on the valve cooling system cold water pipe screen layer, can reasonablely merges with peripheral valve Room environment and surrounding devices, and can field personnel's operate as normal do not had a negative impact.
According to country's " Classification on burning behaviour for building materials " (GB8624-1997), material is divided into level Four by its burning performance:
The A noncombustibility
The B1 flame retardancy
B2 is flammable
The B3 inflammability
With reference to the inner relevant device design specifications in the valve Room, valve Room internal unit fire-protection rating standard must reach the B1 level.Therefore, the flammability of fire retardant papers 10 should reach the B1 flame retardancy at least, preferably reaches the A noncombustibility.The risk of initiation fire when preventing that equipment component produces a large amount of heat in the valve Room.
Should be noted that at last; Above content is only in order to explain the technical scheme of the utility model; But not to the restriction of the utility model protection domain; The simple modification that those of ordinary skill in the art carries out the technical scheme of the utility model perhaps is equal to replacement, does not all break away from the essence and the scope of the utility model technical scheme.
Claims (7)
1. the detection test paper that leaks is characterized in that: comprise fire retardant papers and be sprayed on the ink lay on the fire retardant papers; Said fire retardant papers is the fire retardant papers that has color; Said ink lay is that color is different from fire retardant papers, and this color chance water can become transparent ink lay.
2. the detection test paper that leaks according to claim 1 is characterized in that: said ink lay is transparent for chance water becomes, and water is done the ink lay that original color is recovered in the back.
3. the detection test paper that leaks according to claim 1 and 2 is characterized in that: said fire retardant papers is the pure color fire retardant papers, and said ink lay is the pure color ink lay.
4. the detection test paper that leaks according to claim 3 is characterized in that: said fire retardant papers is red fire retardant papers, and said ink lay is the white ink layer.
5. the detection test paper that leaks according to claim 1 and 2 is characterized in that: said fire retardant papers is that flammability reaches flame retardancy or non-flame properties fire retardant papers.
6. the detection test paper that leaks according to claim 3 is characterized in that: said fire retardant papers is that flammability reaches flame retardancy or non-flame properties fire retardant papers.
7. the detection test paper that leaks according to claim 4 is characterized in that: said fire retardant papers is that flammability reaches flame retardancy or non-flame properties fire retardant papers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202031424U CN202547888U (en) | 2012-05-07 | 2012-05-07 | Water leakage test paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202031424U CN202547888U (en) | 2012-05-07 | 2012-05-07 | Water leakage test paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202547888U true CN202547888U (en) | 2012-11-21 |
Family
ID=47168506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202031424U Expired - Fee Related CN202547888U (en) | 2012-05-07 | 2012-05-07 | Water leakage test paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202547888U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406745B (en) * | 2014-11-05 | 2017-04-12 | 北京卫星环境工程研究所 | Portable flexible moist containing work medium leakage detection sticker and leakage detection method thereof |
| CN106595980A (en) * | 2016-12-25 | 2017-04-26 | 重庆市永川区益锐机械有限责任公司 | Cylinder block leak point locating and detecting device |
| CN107314871A (en) * | 2017-07-27 | 2017-11-03 | 国家电网公司运行分公司宜宾管理处 | A kind of leak water detdction becomes coloured paper |
| CN107324437A (en) * | 2017-08-16 | 2017-11-07 | 无锡市凡宇水处理机械制造有限公司 | Possesses the screen pipe of water leakage detecting function |
| CN109115420A (en) * | 2018-08-09 | 2019-01-01 | 郑州安图生物工程股份有限公司 | A kind of method of testing reagent bottle sealability |
| CN109239839A (en) * | 2018-07-30 | 2019-01-18 | 广东南方电力通信有限公司 | A kind of leak water detdction optical fiber and its end connector |
-
2012
- 2012-05-07 CN CN2012202031424U patent/CN202547888U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406745B (en) * | 2014-11-05 | 2017-04-12 | 北京卫星环境工程研究所 | Portable flexible moist containing work medium leakage detection sticker and leakage detection method thereof |
| CN106595980A (en) * | 2016-12-25 | 2017-04-26 | 重庆市永川区益锐机械有限责任公司 | Cylinder block leak point locating and detecting device |
| CN106595980B (en) * | 2016-12-25 | 2018-08-17 | 重庆市永川区益锐机械有限责任公司 | Cylinder body leak point positioning detection device |
| CN107314871A (en) * | 2017-07-27 | 2017-11-03 | 国家电网公司运行分公司宜宾管理处 | A kind of leak water detdction becomes coloured paper |
| CN107324437A (en) * | 2017-08-16 | 2017-11-07 | 无锡市凡宇水处理机械制造有限公司 | Possesses the screen pipe of water leakage detecting function |
| CN109239839A (en) * | 2018-07-30 | 2019-01-18 | 广东南方电力通信有限公司 | A kind of leak water detdction optical fiber and its end connector |
| CN109115420A (en) * | 2018-08-09 | 2019-01-01 | 郑州安图生物工程股份有限公司 | A kind of method of testing reagent bottle sealability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20150507 |
|
| EXPY | Termination of patent right or utility model |