CN103091059A - Leakage real-time self-closing system - Google Patents
Leakage real-time self-closing system Download PDFInfo
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- CN103091059A CN103091059A CN2012105951678A CN201210595167A CN103091059A CN 103091059 A CN103091059 A CN 103091059A CN 2012105951678 A CN2012105951678 A CN 2012105951678A CN 201210595167 A CN201210595167 A CN 201210595167A CN 103091059 A CN103091059 A CN 103091059A
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Abstract
The invention discloses a leakage real-time self-closing system which comprises a first throttling device (1A), a second throttling device (1B), a first pressure signal pipeline (2A), a second pressure signal pipeline (2B), a first differential pressure transmitter (3A), a second differential pressure transmitter (3B), a subtracter (5), a servoamplifier (6), a motor, a speed reducer (8), a position sensor (9), a square root extractor (10), a display meter (11) and an adjusting valve (12). The leakage real-time self-closing system is particularly suitable for processing hidden or inconvenient premises such as a heating system, a tap water pipeline and various oil pipelines which are buried underground and arranged in high positions, capable of enabling people to find out leakage problems conveniently and promptly and solve problems through set quickly, flexible in arrangement, and capable of providing scientific evidence for judging whether the system is updated and achieving unified and network control of the systems of the heating system, the tap water pipeline and the various oil pipelines.
Description
Technical field
The invention belongs to field of measuring technique, particularly propose the real-time self-closing system of a kind of leakage, proposed a kind of visual leakage self-closing system that automatically cuts off in real time source of leaks that can customize license leakage rate (certainly being greater than the resolution that this leaks self-closing system) for water, coal gas, various oils etc.
Background technology
Heating system, tap water pipe line, various pipeline roads etc., the phenomenons such as generation run, drip, leak are very normal things, are also very annoying things.
In fact, the phenomenons such as run, drip, leak have become the problem of the very trying that present a lot of industries face, and this not only can affect outer tube image, can waste resource, the energy, can affect people's normal life, study and work, may cause in addition the tremendous economic loss.
Mainly take now the processing mode of " wise afterwards " for obvious run, drip, leak, the there is out of joint, and through investigation, search, the very large strength of general expense just can find source of leaks, then take to break, stop, the measure such as benefit could repair; For general run, drip, leak, mostly can only let matters drift.For the little run, drip, leak that are embedded in underground pipe system, helpless especially.
At present, leak hunting technology has obtained fine development, the leak hunting methods such as pressurization, vacuum method, pressurization vacuum method reach its maturity, and are able to widespread use in the leak hunting method actual productions at home and abroad lives such as the indestructive leakage-check of caryoplasm spectrometer, tracing leakage-check by radiation gas, high frequency cremate leak detection, halogen leak detection, fluorescence method, ammonia inspection method, gas sensory leak detection, bubble method, sepage method, acoustics leak detecting.Yet, these technology be all leak check whether, all do not have to realize in time processing in real time for the leakage situation occurring, particularly for the significant leakage situation that occurs in productive life, in time find source of leaks, in time processing in real time just seems more urgent.
Current do not have to judge for the science of carrying out such as heating system, tap water pipe line, various pipeline roads whether they should more renew the method for system, generally only have when original system too outmoded, can't keep its normal operation by maintenance, just do not carried out system conversion, this is not obviously the disposal route of science.
Summary of the invention
The objective of the invention is to be to have proposed the real-time self-closing system of a kind of leakage, proposed a kind of automatic leakage self-closing system that cuts off source of leaks in real time that can customize license leakage rate (certainly being greater than the resolution that this leaks self-closing system) for water, coal gas, various oils etc.
For achieving the above object, the present invention takes following technical scheme:
The real-time self-closing system of a kind of leakage comprises: first throttle device (1A), the second restriction device (1B), the first pressure signal pipeline (2A) and the second pressure signal pipeline (2B), the first differential pressure transmitter (3A) and the second differential pressure transmitter (3B), subtracter (5), servoamplifier (6), motor (7), speed reduction unit (8), position transducer (9), square root extractor (10) and Displaying Meter (11), variable valve (12); First throttle device (1A) and the second restriction device (1B) are arranged in pipeline, and variable valve (12) is arranged in pipeline in the middle of first throttle device (1A) and the second restriction device (1B); First throttle device (1A) and the second restriction device (1B) are transformed into differential pressure signal with the flow value of detected fluid, the differential pressure signal of first throttle device (1A) and the second restriction device (1B) output is transported to the first differential pressure transmitter (3A) and the second differential pressure transmitter (3B) through the first pressure signal pipeline (2A) and the second pressure signal pipeline (2B) respectively, and differential pressure signal is converted to electric current; compare through subtracter (5) from the first differential pressure transmitter (3A) and the second differential pressure transmitter (3B) current signal that comes and the self-defined license leakage rate current signal of inputting from demonstration input instrument (11), if form the difference in flow signal greater than 0, think and have fluid leakage in pipeline, produce control signal, be sent to servoamplifier (6) driving motor (7) through subtracter (5), drive variable valve (12) through speed reduction unit (8), simultaneously through position transducer (9), the valve rod travel of variable valve (12) is fed back to servoamplifier (6), if the difference in flow signal equals 0, think that variable valve (12) cuts out.
The real-time self-closing system of described leakage can self-defined maximum be permitted leakage rate, when surpassing self-defined setting flow value, this invention system can the automatic start up system shutdown system, disconnect source of leaks, realize automatically cutting off in real time, thereby effectively eliminate the phenomenons such as run, drip, leak, particularly for some comparatively hidden, as to be inconvenient to process places, as underground buried, heating system, tap water pipe line, various pipeline road that set up in the high-altitude etc. locates.
The real-time self-closing system of described leakage adopts repeatedly judgment mode, the comprehensive judgment technology in many places, in conjunction with proper signal delay technique, manual control technology etc., in order to improve Systems balanth, to improve the rationality of system, prevent the erroneous judgement situation, thereby can process more flexibly some special circumstances.
The real-time self-closing system of described leakage adopts visualization technique, unitized technology, networking technology etc., makes system's purposes wider, and effect is also stronger.
Lifetime of system arbitration functions module in the real-time self-closing system of described leakage can be carried out in advance whether carrying out part in comprhensive deterministic system according to factors such as the frequency of maintenance of the systems such as heating system, tap water pipe line, various pipeline roads, maintenance cost, maintenance dynamics, phase designed life, tenure of use, concrete materials and be changed, whether should carry out update all, thereby whether provides the science judgment foundation for system update.
The real-time self-closing system control module of described leakage is by temperature sensor, pressure transducer, flow sensor, infrared ray sensor etc., even utilize PLC technology etc. to realize that visual, the system leak source locating alarming, system's maximum license leakage rate setting etc. of the system leaks such as heating system, tap water pipe line, various pipeline roads, its control mode can be automatic control, manually control or auto-manual is controlled combination.And, the systems such as heating system, tap water pipe line, various pipeline roads can be realized unitized, networking control.
The real-time self-closing system of described leakage according to functional requirement can be numerous can letter, system's transportation, installation, use, conciliation, maintenance etc. are convenient, substantially meet under people's the prerequisite such as consumption idea, use habit, progressively lead the energy-saving and environmental protection idea, the consumption habit that more meet the tendency of the day of advocating people.
The invention has the advantages that:
(1) the present invention is a kind of automatic leakage self-closing system that cuts off source of leaks in real time that can customize license leakage rate (certainly being greater than the resolution that this leaks self-closing system) for water, coal gas, various oils etc., can help people to find rapidly the system leak points such as heating system, tap water pipe line, various pipeline roads, and can help the timely plugging system leakage point of people, in time solve to greatest extent the phenomenons such as run, drip, leak.
(2) system of the present invention is particularly suitable for processing those comparatively hidden, as to be inconvenient to process places, as underground buried, heating system, tap water pipe line, various pipeline road that set up in the high-altitude etc. locates, find in time that by setting facilitate leakage problem also deals with problems rapidly.
(3) system of the present invention adopts modular technology, and corresponding module can be permitted according to real economy the corresponding increases and decreases such as situation, specific tasks demand.So, can make system configuration flexible, thereby when really having accomplished to satisfy people's demand, realize energy-conservation, economic purpose.
(4) the real-time self-closing system of described leakage adopts repeatedly judgment mode, the comprehensive judgment technology in many places, in conjunction with proper signal delay technique, manual control technology etc., in order to improve Systems balanth, to improve the rationality of system, prevent the erroneous judgement situation, thereby can process more flexibly some special circumstances.
(5) the lifetime of system arbitration functions module in the real-time self-closing system of described leakage can be carried out in advance whether carrying out part in comprhensive deterministic system according to factors such as the frequency of maintenance of the systems such as heating system, tap water pipe line, various pipeline roads, maintenance cost, maintenance dynamics, phase designed life, tenure of use, concrete materials and changed, whether should carry out update all, thereby whether provides the science judgment foundation for system update.
(6) system of the present invention is by temperature sensor, pressure transducer, flow sensor, infrared ray sensor etc., even utilize PLC technology etc. to realize that visual, the system leak source locating alarming, system's maximum license leakage rate setting etc. of the system leaks such as heating system, tap water pipe line, various pipeline roads, its control mode can be automatic control, manually control or auto-manual is controlled combination.Furtherly, the systems such as heating system, tap water pipe line, various pipeline roads can be realized unitized, networking control.
(7) in the present invention, utilize the PLC technology, control mode is flexible, automatically controls, manually controls or auto-manual control combination, in conjunction with digital display technique, LED screen display technology, touch control display technique, it is vivid and directly perceived to make controlled content and control effect.
(8) system of the present invention can according to functional requirement, economic strength etc. can be numerous can letter, system's transportation, installation, use, debugging, maintenance etc. are convenient, substantially meet under people's the prerequisite such as consumption idea, use habit, progressively lead the energy-saving and environmental protection idea, the consumption habit that more meet the tendency of the day of advocating people.
Description of drawings
Fig. 1 illustrates embodiment basic principle schematic of the real-time self-closing system of leakage of the present invention.
In figure, 1 is that restriction device (comprising first throttle device 1A and the second restriction device 1B), 2 is that pressure signal pipeline (comprising the first pressure signal pipeline 2A and the second pressure signal pipeline 2B), 3 is that pressure difference transmitter (comprising the first differential pressure transmitter 3A and the second differential pressure transmitter 3B), 4 is that current signal transfer line, 5 is that subtracter, 6 is that servoamplifier, 7 is that motor, 8 is that speed reduction unit, 9 is that position transducer, 10 is square root extractor, and 11 is that Displaying Meter, 12 is that variable valve, 13 is the real-time self-closing system case of leakage.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Fig. 1 illustrates embodiment basic principle schematic of the real-time self-closing system of leakage of the present invention.Fluid flows in pipeline, flow direction is as shown in Fig. 1 arrow, first throttle device 1A and the second restriction device 1B are arranged in pipeline, pressure difference transmitter 3, current signal transfer line 4, subtracter 5, servoamplifier 6, motor 7, speed reduction unit 8, position transducer 9, square root extractor 10 and Displaying Meter 11 are assembled in and leak in real-time self-closing system case 13, leak real-time self-closing system case 13 and be arranged on pipeline other or other appropriate locations, variable valve 12 is arranged in pipeline in the middle of first throttle device 1A and the second restriction device 1B.First throttle device 1A and the second restriction device 1B are transformed into differential pressure signal with the flow value of detected fluid, and the differential pressure signal of first throttle device 1A and the second restriction device 1B output is transported to the first differential pressure transmitter 3A and the second differential pressure transmitter 3B through the first pressure signal pipeline 2A and the second pressure signal pipeline 2B respectively.Differential pressure transmitter 3 converts differential pressure signal to electric current.Restriction device 1 is a nonlinear element, therefore increase square root extractor 10, instrument 11 just can linearly show flow difference like this.
compare through subtracter 5 with the self-defined license leakage rate current signal of inputting from demonstration input instrument 11 from the current signal of differential pressure transmitter 3, if form the difference in flow signal greater than 0 (certainly due to reasons such as intrinsic instrument system errors, may be no longer just 0 this moment), revealing real-time self-closing system this moment thinks and has fluid leakage in pipeline, produce signal and be sent to servoamplifier 6 driving motors 7 by current signal transfer line 4 through subtracter 5, drive variable valve 12 through speed reduction unit 8, simultaneously through position transducer 9, the valve rod travel of variable valve 12 is fed back to servoamplifier 6, if this moment, the current signal from differential pressure transmitter 3 compared through subtracter 5 with the self-defined license leakage rate current signal of inputting from demonstration input instrument 11, equal 0 (certainly due to reasons such as intrinsic instrument system errors if form the difference in flow signal, may be no longer just 0 this moment), think that variable valve 12 cuts out, otherwise, revealing real-time self-closing system thinks and has fluid leakage in pipeline, produce signal and be sent to servoamplifier 6 driving motors 7 by current signal transfer line 4 through subtracter 5, drive variable valve 12 through speed reduction unit 8, simultaneously through position transducer 9, the valve rod travel of variable valve 12 is fed back to servoamplifier 6, until till variable valve 12 cuts out.So, form Stellungsservosteuerung, guarantee that input signal is converted to the stroke of variable valve 12 valve rods exactly, close variable valve 12, realize closing the purpose of leakage point.So, guaranteed the accuracy of the real-time self-closing system operation of this leakage.
As previously mentioned, if think that composition function more comprehensively leaks real-time self-closing system, can realize by increasing corresponding module.Responsive module wherein can replace with other flow-sensitive element such as electromagnetic flow transducer, turbine flow transducer, Scroll-tupe flow sensor, mass flow sensor (direct-type mass flow sensor or derivation formula mass flow sensor); Signal output module, namely 12, variable valve can use solenoid valve, motorized valve etc.; Signal input and display module show that namely 11 of instrument of input can adopt keyboard screen formula, touch screen etc. according to actual conditions.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improve and conversion all should belong to the protection domain of claims of the present invention.
Claims (1)
1. one kind leaks real-time self-closing system, it is characterized in that, comprising: first throttle device (1A), the second restriction device (1B), the first pressure signal pipeline (2A) and the second pressure signal pipeline (2B), the first differential pressure transmitter (3A) and the second differential pressure transmitter (3B), subtracter (5), servoamplifier (6), motor (7), speed reduction unit (8), position transducer (9), square root extractor (10) and Displaying Meter (11), variable valve (12); First throttle device (1A) and the second restriction device (1B) are arranged in pipeline, and variable valve (12) is arranged in pipeline in the middle of first throttle device (1A) and the second restriction device (1B); First throttle device (1A) and the second restriction device (1B) are transformed into differential pressure signal with the flow value of detected fluid, the differential pressure signal of first throttle device (1A) and the second restriction device (1B) output is transported to the first differential pressure transmitter (3A) and the second differential pressure transmitter (3B) through the first pressure signal pipeline (2A) and the second pressure signal pipeline (2B) respectively, and differential pressure signal is converted to electric current; compare through subtracter (5) from the first differential pressure transmitter (3A) and the second differential pressure transmitter (3B) current signal that comes and the self-defined license leakage rate current signal of inputting from demonstration input instrument (11), if form the difference in flow signal greater than 0, think and have fluid leakage in pipeline, produce control signal, be sent to servoamplifier (6) driving motor (7) through subtracter (5), drive variable valve (12) through speed reduction unit (8), simultaneously through position transducer (9), the valve rod travel of variable valve (12) is fed back to servoamplifier (6), if the difference in flow signal equals 0, think that variable valve (12) cuts out.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210595167.8A CN103091059B (en) | 2012-12-21 | 2012-12-21 | Leakage real-time self-closing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210595167.8A CN103091059B (en) | 2012-12-21 | 2012-12-21 | Leakage real-time self-closing system |
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| CN103091059A true CN103091059A (en) | 2013-05-08 |
| CN103091059B CN103091059B (en) | 2015-05-06 |
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Cited By (4)
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| CN105805562A (en) * | 2016-04-06 | 2016-07-27 | 青岛瑞雪兆散热器有限公司 | Automatic detection control method for overflow leakage of liquid pipeline |
| CN106989280A (en) * | 2017-05-08 | 2017-07-28 | 西北工业大学 | A kind of SCM Based detection pipe leakage and the automatic water flow monitoring system and method for closing protection |
| CN107449157A (en) * | 2017-08-11 | 2017-12-08 | 杭州航民江东热电有限公司 | Boiler desuperheat water control system |
| CN112145506A (en) * | 2020-09-22 | 2020-12-29 | 山东钢铁集团日照有限公司 | Device and method for preventing fire in case of oil leakage of hydraulic system of rolling mill |
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Cited By (5)
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| CN106989280A (en) * | 2017-05-08 | 2017-07-28 | 西北工业大学 | A kind of SCM Based detection pipe leakage and the automatic water flow monitoring system and method for closing protection |
| CN107449157A (en) * | 2017-08-11 | 2017-12-08 | 杭州航民江东热电有限公司 | Boiler desuperheat water control system |
| CN112145506A (en) * | 2020-09-22 | 2020-12-29 | 山东钢铁集团日照有限公司 | Device and method for preventing fire in case of oil leakage of hydraulic system of rolling mill |
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