CN106402667B - A kind of online resistance formula leakage protective system - Google Patents
A kind of online resistance formula leakage protective system Download PDFInfo
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- CN106402667B CN106402667B CN201611041781.4A CN201611041781A CN106402667B CN 106402667 B CN106402667 B CN 106402667B CN 201611041781 A CN201611041781 A CN 201611041781A CN 106402667 B CN106402667 B CN 106402667B
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- resistance
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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)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
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Abstract
The invention discloses a kind of online resistance formula leakage protective systems, belong to technology of instrument and meter field, including monitoring center industrial personal computer (6), several leak water detdction terminals (1) and several leakage inductive ropes (3), solve the problems, such as how on-line real-time measuremen heating waterpipe integrality, it realizes and is accurately positioned leak place, the advantageous effect of timely alert notice related personnel, the present invention uses Constant Current-Source Design, greatly improve measurement accuracy, the generation for preventing wrong report accidentally to survey, the present invention uses the distribution leakage inductive rope of segmented, certain one end leakage inductive rope and corresponding leak water detdction terminal can be individually replaced, facilitate repair.
Description
Technical field
The invention belongs to technology of instrument and meter fields.
Background technology
Winter urban heating system needs hot water being transported to huge numbers of families by waterpipe, these waterpipes may be because
External force reason and generate rupture, how accurately to find leak place, take the measures such as repair, leak stopping in time, be reduce loss and
Ensure the key of heating normal operation.
Invention content
The object of the present invention is to provide a kind of online resistance formula leakage protective system, solve how on-line real-time measuremen heating water
The problem of integrality of pipeline.
To achieve the above object, the present invention uses following technical scheme：
A kind of online resistance formula leakage protective system, including monitoring center industrial personal computer, several leak water detdction terminals and several leaks
Induction rope, monitoring center industrial personal computer are set in monitoring room, and several leak water detdction terminals are set to the upside of waterpipe, institute
It states several leak water detdction terminals and is spaced setting successively along the longitudinal direction of waterpipe, several leakage inductive ropes are set to waterpipe
Downside, several leakage inductive ropes are set gradually along the longitudinal direction of waterpipe, 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 includes power cord and 485 buses；Monitoring center industrial personal computer connects controlling bus；
The leak water detdction terminal includes main control chip, amplifying circuit, constant-current source circuit, power module and 485 modules, perseverance
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 connects
485 modules are connect, the power module is main control chip, amplifying circuit, constant-current source circuit and 485 module for power supply；
The equivalent circuit of the leakage inductive rope includes resistance R3 and resistance R4；
The 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 ground wire by resistance R9 connection positive supplies, 2 feet of controllable accurate source of stable pressure D1, and 3 feet of controllable accurate source of stable pressure D1 are logical
Resistance R12 connection ground wires are crossed, 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, controllable essence
3 feet of close source of stable pressure D1 are also connected with 1 foot of resistance R4 and 1 foot of resistance R3,2 feet of the 2 feet connection resistance R2 of resistance R4, resistance
2 feet of the 2 feet connection resistance R1 of R3；
Amplifying circuit includes amplifier A3, resistance R10, resistance R5, resistance R11 and resistance R7, and 2 feet of resistance R2 pass through electricity
3 feet of R10 connection amplifiers A3 are hindered, 2 feet of resistance R1 pass through 2 feet of resistance R11 connection amplifiers A3,1 foot of amplifier A3
It is linked together by resistance R5 with 8 feet, the 4 feet ground connection of amplifier A3,7 feet of amplifier A3 connect positive supply, the master control
Chip is equipped with the first A D interface, and 6 feet of amplifier A3 connect first A D interface.
Interval between leak water detdction terminal described in each two is not more than 1000 meters.
The model MAX485 of 485 module, 485 module pass through 485 bus and the monitoring center work
Control machine communicates, and the power module connects the power cord, and the monitoring center industrial personal computer provides 12V positive electricity for the power cord
Source.
The model MSP430 of the main control chip.
The model AD623 of the amplifier A3；The model TL431 of the controllable accurate source of stable pressure D1.
A kind of online resistance formula leakage protective system of the present invention, solve how on-line real-time measuremen heating waterpipe
The problem of integrality, realizes and is accurately positioned leak place, the advantageous effect of timely alert notice related personnel, and the present invention uses
Constant Current-Source Design greatly improves measurement accuracy, it is therefore prevented that the generation that wrong report is accidentally surveyed, the present invention are leaked using the distribution of segmented
Water induction rope can be individually replaced certain one end leakage inductive rope and corresponding leak water detdction terminal, facilitate repair.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the leak water detdction terminal schematic diagram block diagram of the present invention；
Fig. 3 is the schematic diagram of the amplifying circuit and constant-current source circuit of the present invention；
In figure：Several leak water detdction terminals 1, controlling bus 2, several leakage inductive ropes 3, constant-current source circuit 4, waterpipe 5,
Monitoring center industrial personal computer 6, amplifying circuit 8, power module 9, main control chip 10,485 modules 11.
Specific implementation mode
A kind of online resistance formula leakage protective system as shown in Figs. 1-3, including monitoring center industrial personal computer 6, several leak water detdctions
Terminal 1 and several leakage inductive ropes 3, monitoring center industrial personal computer 6 are set in monitoring room, and several leak water detdction terminals 1 are equal
Set on the upside of waterpipe 5, several leak water detdction terminals 1 are spaced setting, several leakages along the longitudinal direction of waterpipe 5 successively
Water induction rope 3 is set to the downside of waterpipe 5, and several leakage inductive ropes 3 are set gradually along the longitudinal direction of waterpipe 5, each
A 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 includes power cord and 485 buses；Monitoring center industrial personal computer 6 connects controlling bus 2；
The 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 connect 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 connect 485 modules 11, and the 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 the leakage inductive rope 3 includes resistance R3 and resistance R4；
The 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 pass through resistance R9 connection positive supplies, 2 feet of controllable accurate source of stable pressure D1 connect ground wire, 3 feet of controllable accurate source of stable pressure D1
By resistance R12 connection ground wires, 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, controllably
3 feet of precision voltage regulator D1 are also connected with 1 foot of resistance R4 and 1 foot of resistance R3,2 feet of the 2 feet connection resistance R2 of resistance R4, electricity
Hinder 2 feet of the 2 feet connection resistance R1 of R3；
Amplifying circuit 8 includes amplifier A3, resistance R10, resistance R5, resistance R11 and resistance R7, and 2 feet of resistance R2 pass through
3 feet of resistance R10 connection amplifiers A3,2 feet of resistance R1 are by 2 feet of resistance R11 connection amplifiers A3, and the 1 of amplifier A3
Foot and 8 feet are linked together by resistance R5, and the 4 feet ground connection of amplifier A3,7 feet of amplifier A3 connect positive supply, the master
It controls chip 10 and is equipped with the first A D interface, 6 feet of amplifier A3 connect first A D interface.
Interval between leak water detdction terminal 1 described in each two is not more than 1000 meters.
The model MAX485 of 485 module 11,485 module 11 pass through in 485 bus and the monitoring
Heart industrial personal computer 6 communicates, and the power module 9 connects the power cord, and the monitoring center industrial personal computer 6 provides for the power cord
12V positive supplies.
The model MSP430 of the main control chip 10.
The model AD623 of the amplifier A3；The model TL431 of the controllable accurate source of stable pressure D1.
When work, constant-current source circuit 4 is that leakage inductive rope 3 provides constant current, ensures amplifying circuit 8 and main control chip 10
Accurate measurement to the resistance of leakage inductive rope 3 prevents the generation for accidentally surveying phenomenon.
A unique fixed ID number is arranged in each leak water detdction terminal 1 before manufacture, and ID is got well and is stored in
In main control chip 10.
When there is leak generation, the reason of leakage inductive rope 3 at leak is because of water logging, the resistance of leakage inductive rope 3 can be sent out
Changing, main control chip 10 detected the variation of the resistance of leakage inductive rope 3 by amplifying circuit 8, generate alert data immediately,
Alert data and the ID number of itself are sent to monitoring center industrial personal computer 6 by last main control chip 10 by 485 buses again, in monitoring
Heart industrial personal computer 6 searches well leak place by ID, and correlation engineering personnel is notified to repair.
A kind of online resistance formula leakage protective system of the present invention, solve how on-line real-time measuremen heating waterpipe
The problem of integrality, realizes and is accurately positioned leak place, the advantageous effect of timely alert notice related personnel, and the present invention uses
Constant Current-Source Design greatly improves measurement accuracy, it is therefore prevented that the generation that wrong report is accidentally surveyed, the present invention are leaked using the distribution of segmented
Water induction rope can be individually replaced certain one end leakage inductive rope and corresponding leak water detdction terminal, facilitate repair.
Claims (5)
1. a kind of online resistance formula leakage protective system, it is characterised in that：Including monitoring center industrial personal computer（6）, several leak water detdctions it is whole
End（1）With several leakage inductive ropes（3）, monitoring center industrial personal computer（6）In monitoring room, several leak water detdction terminals
（1）It is set to waterpipe（5）Upside, several leak water detdction terminals（1）Along waterpipe（5）Longitudinal direction be spaced set successively
It sets, several leakage inductive ropes（3）It is set to waterpipe（5）Downside, several leakage inductive ropes（3）Along waterpipe
（5）Longitudinal direction set gradually, each leak water detdction terminal（1）It is all connected with a leakage inductive rope（3）, all leak water detdctions
Terminal（1）It is all connected with controlling bus（2）；
Controlling bus（2）Including power cord and 485 buses；Monitoring center industrial personal computer（6）Connect controlling bus（2）；
The leak water detdction terminal（1）Including main control chip（10）, amplifying circuit（8）, constant-current source circuit（4）, power module（9）
With 485 modules（11）, constant-current source circuit（4）Connect leakage inductive rope（3）, leakage inductive rope（3）Connect amplifying circuit（8）, put
Big circuit（8）Connect main control chip（10）, main control chip（10）Connect 485 modules（11）, the power module（9）For master control core
Piece（10）, amplifying circuit（8）, constant-current source circuit（4）With 485 modules（11）Power supply；
The leakage inductive rope（3）Equivalent circuit include resistance R3 and resistance R4；
The constant-current source circuit（4）Including controllable accurate source of stable pressure D1, resistance R12 and resistance R9, the 1 of controllable accurate source of stable pressure D1
Foot connects ground wire by resistance R9 connection positive supplies, 2 feet of controllable accurate source of stable pressure D1, and 3 feet of controllable accurate source of stable pressure D1 are logical
Resistance R12 connection ground wires are crossed, 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, controllable essence
3 feet of close source of stable pressure D1 are also connected with 1 foot of resistance R4 and 1 foot of resistance R3,2 feet of the 2 feet connection resistance R2 of resistance R4, resistance
2 feet of the 2 feet connection resistance R1 of R3；
Amplifying circuit（8）Including amplifier A3, resistance R10, resistance R5, resistance R11 and resistance R7,2 feet of resistance R2 pass through electricity
3 feet of R10 connection amplifiers A3 are hindered, 2 feet of resistance R1 pass through 2 feet of resistance R11 connection amplifiers A3,1 foot of amplifier A3
It is linked together by resistance R5 with 8 feet, the 4 feet ground connection of amplifier A3,7 feet of amplifier A3 connect positive supply, the master control
Chip（10）Equipped with the first A D interface, 6 feet of amplifier A3 connect first A D interface.
2. a kind of online resistance formula leakage protective system as described in claim 1, it is characterised in that：Leak water detdction described in each two is whole
End（1）Between interval be not more than 1000 meters.
3. a kind of online resistance formula leakage protective system as described in claim 1, it is characterised in that：485 module（11）Type
Number be MAX485,485 module（11）Pass through 485 bus and the monitoring center industrial personal computer（6）Communication, the power supply
Module（9）Connect the power cord, the monitoring center industrial personal computer（6）12V positive supplies are provided for the power cord.
4. a kind of online resistance formula leakage protective system as described in claim 1, it is characterised in that：The main control chip（10）Type
Number be MSP430.
5. a kind of online resistance formula leakage protective system as described in claim 1, it is characterised in that：The model of the amplifier A3
AD623；The model TL431 of the 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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN106402667A CN106402667A (en) | 2017-02-15 |
| CN106402667B true 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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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3013465A1 (en) * | 1980-04-05 | 1981-10-08 | Seba-Dynatronic Mess- und Ortungstechnik gmbH, 8601 Baunach | Precision location of leak in pressure pipe - inserting detector to pick up interference generated by leak and measuring length of cable in pipe |
| 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 |
| KR100965302B1 (en) * | 2008-05-06 | 2010-06-22 | 중앙제어 주식회사 | A apparatus for sensing a water leakage |
| CN101571234B (en) * | 2009-06-16 | 2012-05-30 | 北京埃德尔黛威新技术有限公司 | Liquid pressure conduit leak detection device |
| CN102563363B (en) * | 2012-01-13 | 2014-03-19 | 深圳市祥为测控技术有限公司 | Liquid leakage detecting positioning system |
| 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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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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