CN106402667A - Online resistance type leakage preventing system - Google Patents
Online resistance type leakage preventing system Download PDFInfo
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- CN106402667A CN106402667A CN201611041781.4A CN201611041781A CN106402667A CN 106402667 A CN106402667 A CN 106402667A CN 201611041781 A CN201611041781 A CN 201611041781A CN 106402667 A CN106402667 A CN 106402667A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses an online resistance type leakage preventing system, and belongs to the technical field of instruments and meters. The online resistance type leakage preventing system comprises a monitoring center industrial personal computer (6), a plurality of water leakage detection terminals (1) and a plurality of water leakage induction ropes (3). The problem about how to detect the integrity of a hot water supply pipeline in real time online is solved, and the beneficial effects that the water leakage position is accurately positioned, and related workers are alarmed and informed in time are achieved. According to the online resistance type leakage preventing system, the constant flow source design is adopted, the measuring precision is greatly improved, and mistaken alarming and mistaken measuring are prevented. The water leakage induction ropes are distributed in a segmented manner, the water leakage induction rope at one end and the corresponding water leakage detection terminal can be independently replaced, and maintaining is convenient.
Description
Technical field
The invention belongs to technology of instrument and meter field.
Background technology
Winter urban heating system needs for hot water to be transported to huge numbers of families by waterpipe, these waterpipes probably due to
External force reason and produce rupture, how accurately to find leak place, take the measures such as maintenance, leak stopping in time, be reduce loss and
Ensure the normal key run of heating.
Content of the invention
It is an object of the invention to provide a kind of online resistance formula leakage protective system, solve how on-line real-time measuremen heating water
The problem of the integrity of pipeline.
For achieving the above object, the present invention employs the following technical solutions：
A kind of online resistance formula leakage protective system, including Surveillance center's industrial computer, several leak water detdction terminal and several leak
Sensing rope, in monitoring room, described several leak water detdction terminals are all located at the upside of waterpipe, institute for Surveillance center's industrial computer
State several leak water detdction terminals along longitudinal interval setting successively of waterpipe, described several leakage inductive ropes are all located at waterpipe
Downside, described several leakage inductive ropes set gradually along the longitudinal direction of waterpipe, and each leak water detdction terminal is all connected with a leakage
Water induction rope, all leak water detdction terminals are all connected with controlling bus；
Controlling bus include power line and 485 buses；Surveillance center's industrial computer connects controlling bus；
Described leak water detdction terminal includes main control chip, amplifying circuit, constant-current source circuit, power module and 485 modules, permanent
Current source circuit connects leakage inductive rope, and leakage inductive rope connects amplifying circuit, and amplifying circuit connects main control chip, and main control chip is even
Connect 485 modules, described power module is main control chip, amplifying circuit, constant-current source circuit and 485 module for power supply；
The equivalent circuit of described leakage inductive rope includes resistance R3 and resistance R4；
Described constant-current source circuit includes controllable accurate source of stable pressure D1, resistance R12 and resistance R9, controllable accurate source of stable pressure D1's
1 foot connects positive supply by resistance R9, and 2 feet of controllable accurate source of stable pressure D1 connect ground wire, and 3 feet of controllable accurate source of stable pressure D1 lead to
Cross resistance R12 and connect ground wire, 1 foot of controllable accurate source of stable pressure D1 is also connected with 1 foot of resistance R2 and 1 foot of resistance R1, controlled essence
3 feet of close source of stable pressure D1 are also connected with 1 foot of resistance R4 and 1 foot of resistance R3, and 2 feet of resistance R4 connect 2 feet of resistance R2, resistance
2 feet of R3 connect 2 feet of resistance R1；
Amplifying circuit includes amplifier A3, resistance R10, resistance R5, resistance R11 and resistance R7, and 2 feet of resistance R2 pass through electricity
Resistance R10 connects 3 feet of amplifier A3, and 2 feet of resistance R1 connect 2 feet of amplifier A3,1 foot of amplifier A3 by resistance R11
Linked together by resistance R5 with 8 feet, the 4 foot ground connection of amplifier A3,7 feet of amplifier A3 connect positive supply, described master control
Chip is provided with an AD interface, and 7 feet of amplifier A3 connect a described AD interface.
Interval between leak water detdction terminal described in each two is not more than 1000 meters.
Model MAX485 of described 485 modules, described 485 modules are by described 485 buses and described Surveillance center work
Control machine communicates, and described power module connects described power line, and described Surveillance center industrial computer provides 12V positive electricity for described power line
Source.
Model MSP430 of described main control chip.
Model AD623 of described amplifier A3；Model TL431 of described controllable accurate source of stable pressure D1.
A kind of online resistance formula leakage protective system of the present invention, solves how on-line real-time measuremen and heats waterpipe
The problem of integrity it is achieved that being accurately positioned leak place, the beneficial effect of timely alert notice related personnel, the present invention adopt
Constant Current-Source Design, greatly improves certainty of measurement it is therefore prevented that wrong report misses the generation surveyed, and the present invention adopts the distribution leakage of stagewise
Water induction rope, can be individually replaced certain one end leakage inductive rope and corresponding leak water detdction terminal, convenient maintenance.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the leak water detdction terminal schematic diagram block diagram of the present invention；
Fig. 3 is the amplifying circuit of the present invention and the schematic diagram of constant-current source circuit；
In figure：Several leak water detdction terminals 1, controlling bus 2, several leakage inductive rope 3, constant-current source circuit 4, waterpipe 5,
Surveillance center's industrial computer 6, amplifying circuit 8, power module 9, main control chip 10,485 modules 11.
Specific embodiment
A kind of online resistance formula leakage protective system as Figure 1-3, including Surveillance center's industrial computer 6, several leak water detdction
Terminal 1 and several leakage inductive rope 3, in monitoring room, described several leak water detdction terminals 1 are equal for Surveillance center's industrial computer 6
Located at the upside of waterpipe 5, described several leak water detdction terminals 1 are along longitudinal interval setting successively of waterpipe 5, described several leakages
All located at the downside of waterpipe 5, described several leakage inductive ropes 3 set gradually water induction rope 3 along the longitudinal direction of waterpipe 5, each
Individual leak water detdction terminal 1 is all connected with a leakage inductive rope 3, and all leak water detdction terminals 1 are all connected with controlling bus 2；
Controlling bus 2 include power line and 485 buses；Surveillance center's industrial computer 6 connects controlling bus 2；
Described leak water detdction terminal 1 includes main control chip 10, amplifying circuit 8, constant-current source circuit 4, power module 9 and 485
Module 11, constant-current source circuit 4 connects leakage inductive rope 3, and leakage inductive rope 3 connects amplifying circuit 8, and amplifying circuit 8 connects master control
Chip 10, main control chip 10 connects 485 modules 11, and described power module 9 is main control chip 10, amplifying circuit 8, constant-current source circuit
4 and 485 modules 11 are powered；
The equivalent circuit of described leakage inductive rope 3 includes resistance R3 and resistance R4；
Described constant-current source circuit 4 includes controllable accurate source of stable pressure D1, resistance R12 and resistance R9, controllable accurate source of stable pressure D1
1 foot by resistance R9 connect positive supply, controllable accurate source of stable pressure D1 2 feet connect ground wires, 3 feet of controllable accurate source of stable pressure D1
Ground wire is connected by resistance R12,1 foot of controllable accurate source of stable pressure D1 is also connected with 1 foot of resistance R2 and 1 foot of resistance R1, controlled
3 feet of precision voltage regulator D1 are also connected with 1 foot of resistance R4 and 1 foot of resistance R3, and 2 feet of resistance R4 connect 2 feet of resistance R2, electricity
2 feet of resistance R3 connect 2 feet of resistance R1；
Amplifying circuit 8 includes amplifier A3, resistance R10, resistance R5, resistance R11 and resistance R7, and 2 feet of resistance R2 pass through
Resistance R10 connects 3 feet of amplifier A3, and 2 feet of resistance R1 connect 2 feet of amplifier A3 by resistance R11, and the 1 of amplifier A3
Foot and 8 feet are linked together by resistance R5, the 4 foot ground connection of amplifier A3, and 7 feet of amplifier A3 connect positive supply, described master
Control chip 10 is provided with an AD interface, and 7 feet of amplifier A3 connect a described AD interface.
Interval between leak water detdction terminal 1 described in each two is not more than 1000 meters.
Model MAX485 of described 485 modules 11, described 485 modules 11 are by described 485 buses and described monitoring
Heart industrial computer 6 communicates, and described power module 9 connects described power line, and described Surveillance center industrial computer 6 provides for described power line
12V positive supply.
Model MSP430 of described main control chip 10.
Model AD623 of described amplifier A3；Model TL431 of described controllable accurate source of stable pressure D1.
During work, constant-current source circuit 4 provides constant current it is ensured that amplifying circuit 8 and main control chip 10 for leakage inductive rope 3
Accurate measurement to the resistance of leakage inductive rope 3, prevents from surveying the generation of phenomenon by mistake.
Each leak water detdction terminal 1 arranges a No. ID uniquely fixing all before dispatching from the factory, and ID is stored in well
In main control chip 10.
When there being leak to occur, the leakage inductive rope 3 at leak is because, the reason water logging, the resistance of leakage inductive rope 3 can be sent out
Changing, main control chip 10 detects the change of the resistance of leakage inductive rope 3 by amplifying circuit 8, generates alert data immediately,
Last main control chip 10 passes through 485 buses again and alert data and itself No. ID is sent to Surveillance center's industrial computer 6, in monitoring
Heart industrial computer 6 searches leak place well by ID, and notifies correlation engineering personnel to be keeped in repair.
A kind of online resistance formula leakage protective system of the present invention, solves how on-line real-time measuremen and heats waterpipe
The problem of integrity it is achieved that being accurately positioned leak place, the beneficial effect of timely alert notice related personnel, the present invention adopt
Constant Current-Source Design, greatly improves certainty of measurement it is therefore prevented that wrong report misses the generation surveyed, and the present invention adopts the distribution leakage of stagewise
Water induction rope, can be individually replaced certain one end leakage inductive rope and corresponding leak water detdction terminal, convenient maintenance.
Claims (5)
1. a kind of online resistance formula leakage protective system it is characterised in that：Including Surveillance center's industrial computer (6), several leak water detdction eventually
End (1) and several leakage inductive rope (3), Surveillance center's industrial computer (6) in monitoring room, described several leak water detdction terminals
(1) all located at the upside of waterpipe (5), described several leak water detdction terminals (1) set along being longitudinally spaced successively of waterpipe (5)
Put, all located at the downside of waterpipe (5), described several leakage inductive ropes (3) are along waterpipe for described several leakage inductive ropes (3)
(5) longitudinal direction sets gradually, and each leak water detdction terminal (1) is all connected with a leakage inductive rope (3), and all leak water detdction are eventually
End (1) is all connected with controlling bus (2)；
Controlling bus (2) include power line and 485 buses；Surveillance center's industrial computer (6) connects controlling bus (2)；
Described leak water detdction terminal (1) includes main control chip (10), amplifying circuit (8), constant-current source circuit (4), power module (9)
With 485 modules (11), constant-current source circuit (4) connection leakage inductive rope (3), leakage inductive rope (3) connects amplifying circuit (8), puts
Big circuit (8) connects main control chip (10), and main control chip (10) connects 485 modules (11), and described power module (9) is master control core
Piece (10), amplifying circuit (8), constant-current source circuit (4) and 485 modules (11) power supply；
The equivalent circuit of described leakage inductive rope (3) includes resistance R3 and resistance R4；
Described constant-current source circuit (4) inclusion controllable accurate source of stable pressure D1, resistance R12 and resistance R9, the 1 of controllable accurate source of stable pressure D1
Foot connects positive supply by resistance R9, and 2 feet of controllable accurate source of stable pressure D1 connect ground wire, and 3 feet of controllable accurate source of stable pressure D1 lead to
Cross resistance R12 and connect ground wire, 1 foot of controllable accurate source of stable pressure D1 is also connected with 1 foot of resistance R2 and 1 foot of resistance R1, controlled essence
3 feet of close source of stable pressure D1 are also connected with 1 foot of resistance R4 and 1 foot of resistance R3, and 2 feet of resistance R4 connect 2 feet of resistance R2, resistance
2 feet of R3 connect 2 feet of resistance R1；
Amplifying circuit (8) includes amplifier A3, resistance R10, resistance R5, resistance R11 and resistance R7, and 2 feet of resistance R2 pass through electricity
Resistance R10 connects 3 feet of amplifier A3, and 2 feet of resistance R1 connect 2 feet of amplifier A3,1 foot of amplifier A3 by resistance R11
Linked together by resistance R5 with 8 feet, the 4 foot ground connection of amplifier A3,7 feet of amplifier A3 connect positive supply, described master control
Chip (10) is provided with an AD interface, and 7 feet of amplifier A3 connect a described AD interface.
2. as claimed in claim 1 a kind of online resistance formula leakage protective system it is characterised in that：Leak water detdction described in each two is eventually
Interval between end (1) is not more than 1000 meters.
3. as claimed in claim 1 a kind of online resistance formula leakage protective system it is characterised in that：The type of described 485 modules (11)
Number it is MAX485, described 485 modules (11) are communicated with described Surveillance center industrial computer (6) by described 485 buses, described power supply
Module (9) connects described power line, and described Surveillance center industrial computer (6) provides 12V positive supply for described power line.
4. as claimed in claim 1 a kind of online resistance formula leakage protective system it is characterised in that：The type of described main control chip (10)
Number be MSP430.
5. as claimed in claim 1 a kind of online resistance formula leakage protective system it is characterised in that：The model of described amplifier A3
AD623；Model TL431 of described controllable accurate source of stable pressure D1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611041781.4A CN106402667B (en) | 2016-11-24 | 2016-11-24 | A kind of online resistance formula leakage protective system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611041781.4A CN106402667B (en) | 2016-11-24 | 2016-11-24 | A kind of online resistance formula leakage protective system |
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| CN106402667A true CN106402667A (en) | 2017-02-15 |
| CN106402667B CN106402667B (en) | 2018-08-14 |
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| CN201611041781.4A Active CN106402667B (en) | 2016-11-24 | 2016-11-24 | A kind of online resistance formula leakage protective system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469826A (en) * | 2018-12-20 | 2019-03-15 | 湖南达道新能源开发有限公司 | A kind of heat distribution pipeline leakage device for fast detecting and method |
| CN111045088A (en) * | 2019-12-31 | 2020-04-21 | 深圳市英威腾电源有限公司 | Liquid leakage detection device and method |
| CN113944889A (en) * | 2021-09-30 | 2022-01-18 | 华能澜沧江水电股份有限公司 | Inspection device for rapid water leakage induction of water flooding-proof workshop of hydraulic power plant |
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| JPS59150320A (en) * | 1983-02-04 | 1984-08-28 | Toshiba Corp | Water leak detecting apparatus |
| DE3013465C2 (en) * | 1980-04-05 | 1988-02-25 | Seba-Dynatronic Mess- Und Ortungstechnik Gmbh, 8601 Baunach, De | |
| JP4172241B2 (en) * | 2002-10-02 | 2008-10-29 | Ｊｆｅスチール株式会社 | Piping leakage position detection method and apparatus |
| CN101571234A (en) * | 2009-06-16 | 2009-11-04 | 北京埃德尔黛威新技术有限公司 | Liquid pressure conduit leak detection device |
| KR20090116134A (en) * | 2008-05-06 | 2009-11-11 | 중앙제어 주식회사 | A apparatus for sensing a water leakage |
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| CN206280741U (en) * | 2016-11-24 | 2017-06-27 | 南京西奥仪表测控有限公司 | A kind of online resistance formula leakage protective system |
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2016
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| DE3013465C2 (en) * | 1980-04-05 | 1988-02-25 | Seba-Dynatronic Mess- Und Ortungstechnik Gmbh, 8601 Baunach, De | |
| JPS59150320A (en) * | 1983-02-04 | 1984-08-28 | Toshiba Corp | Water leak detecting apparatus |
| JP4172241B2 (en) * | 2002-10-02 | 2008-10-29 | Ｊｆｅスチール株式会社 | Piping leakage position detection method and apparatus |
| KR20090116134A (en) * | 2008-05-06 | 2009-11-11 | 중앙제어 주식회사 | A apparatus for sensing a water leakage |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469826A (en) * | 2018-12-20 | 2019-03-15 | 湖南达道新能源开发有限公司 | A kind of heat distribution pipeline leakage device for fast detecting and method |
| CN109469826B (en) * | 2018-12-20 | 2020-08-14 | 湖南达道新能源开发有限公司 | Device and method for rapidly detecting leakage of heat distribution pipeline |
| CN111045088A (en) * | 2019-12-31 | 2020-04-21 | 深圳市英威腾电源有限公司 | Liquid leakage detection device and method |
| CN111045088B (en) * | 2019-12-31 | 2022-05-13 | 深圳市英威腾电源有限公司 | Liquid leakage detection device and method |
| CN113944889A (en) * | 2021-09-30 | 2022-01-18 | 华能澜沧江水电股份有限公司 | Inspection device for rapid water leakage induction of water flooding-proof workshop of hydraulic power plant |
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| Publication number | Publication date |
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| CN106402667B (en) | 2018-08-14 |
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Effective date of registration: 20220608 Address after: No. 88, Zhendong Road, Xingren Town, Tongzhou District, Nantong City, Jiangsu Province 226371 Patentee after: Nantong Fuyao Automatic Control Technology Co.,Ltd. Address before: No.108, ganjiabian East, Yaohua street, Qixia District, Nanjing, Jiangsu Province, 210046 Patentee before: NANJING XIAO INSTRUMENT MEASUREMENT Co.,Ltd. |
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