CN109469826B - Device and method for rapidly detecting leakage of heat distribution pipeline - Google Patents
Device and method for rapidly detecting leakage of heat distribution pipeline Download PDFInfo
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- CN109469826B CN109469826B CN201811561661.6A CN201811561661A CN109469826B CN 109469826 B CN109469826 B CN 109469826B CN 201811561661 A CN201811561661 A CN 201811561661A CN 109469826 B CN109469826 B CN 109469826B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/084—Pipe-line systems for liquids or viscous products for hot fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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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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Abstract
The invention provides a device and a method for rapidly detecting leakage of a heat distribution pipeline. The rapid detection device for the leakage of the heat distribution pipeline comprises a pipe body, a plurality of detection mechanisms and a conductive mechanism, wherein the detection mechanisms are sequentially connected in series and fixed on the outer wall of the pipe body; the detection mechanism comprises a box body, a first limit belt, a second limit belt, a thermistor and an ammeter; the box body is fixed on the outer wall of the tube body through the first limit belt and the second limit belt, a thermistor and an ammeter are installed inside the box body, two binding posts are symmetrically arranged on the surface of the box body, and one binding post, the thermistor, the ammeter and the other binding post are sequentially connected in series; probes are distributed on the surface of the thermistor. The device and the method for rapidly detecting the leakage of the heat distribution pipeline can realize real-time monitoring and rapidly find out a leakage area.
Description
Technical Field
The invention relates to the technical field of geothermal equipment, in particular to a device and a method for quickly detecting leakage of a heat distribution pipeline.
Background
Along with the development of cities and the acceleration of urbanization process, the ground space of the cities has huge upgrade potential, the urban land is more and more tense, and the form of directly burying the heat distribution pipeline is more and more adopted; as potential pipelines are laid below the ground surface, thermal leakage events are increasing; in contrast, leakage to a direct-buried utility pipeline; becomes the key point and key point of research and urgent solution.
The urban heat distribution pipeline is long in pipeline laying, the main detection method is a hearing method for detecting, whether leakage exists or not is judged by hearing water sounds under each valve, however, the method can be completed by very professional personnel, the training time is long, and errors exist in detection.
Therefore, there is a need to provide a new device and method for rapidly detecting leakage of thermal pipe to solve the above-mentioned technical problems.
Disclosure of Invention
The invention aims to provide a device and a method for rapidly detecting the leakage of a heat distribution pipeline, which have high detection efficiency and wide coverage range.
In order to solve the technical problem, the device and the method for rapidly detecting the leakage of the heat distribution pipeline provided by the invention comprise the following steps: a pipe body; the detection mechanisms are provided with a plurality of detection mechanisms, and the detection mechanisms are sequentially connected in series and fixed on the outer wall of the pipe body; the detection mechanism comprises a box body, a first limit belt, a second limit belt, a thermistor and an ammeter; the box body is fixed on the outer wall of the tube body through the first limit belt and the second limit belt, a thermistor and an ammeter are installed inside the box body, two binding posts are symmetrically arranged on the surface of the box body, and one binding post, the thermistor, the ammeter and the other binding post are sequentially connected in series; probes are distributed on the surface of the thermistor and extend out of the top surface of the box body; the probe is used for detecting leaked hot water; and the conductive mechanism is arranged between the two detection mechanisms and is used for conducting the current of the previous detection mechanism to the next detection mechanism.
Preferably, the first limit belt and the second limit belt are connected in a buckling mode, and the first limit belt and the second limit belt are symmetrically wrapped on the outer wall of the pipe body.
Preferably, the detection mechanism further comprises a moving mechanism, a protection plate and a side plate, and the moving mechanism is symmetrically arranged on two sides of the thermistor; two side walls of the protection plate are fixedly connected with the moving mechanism, and the other two side walls of the protection plate are attached to the two side plates in a sliding manner; the side plate is arranged on the top surface of the box body; two moving mechanism, guard plate, curb plate and the top surface of box body forms sealed cavity structure.
Preferably, the moving mechanism comprises a supporting tube, an electromagnet, a magnet, a spring and a supporting plate; the supporting tube is arranged on the inner wall of the box body, and the supporting plate is sleeved in the supporting tube; the bottom end of the support plate is provided with the magnet, and the bottom end inside the support tube is provided with the electromagnet; the electromagnet is electrically connected with the wiring terminal; the top surface of the magnet is connected with the spring, and the spring is sleeved outside the support plate; the inner wall of the top end of the support plate is fixedly connected with the protection plate.
Preferably, the surface of the protection plate is provided with an installation groove, and a sealing plate is fixed inside the installation groove; a torsional spring is arranged at the joint of the sealing plate and the mounting groove; the mounting groove is located directly over the probe, the mounting groove with the probe distributes relatively.
Preferably, the conductive mechanism comprises an outer plate body, a conductive sheet, a connecting plate and a connecting screw, and the conductive sheet is arranged in the outer plate body; connecting plates are symmetrically arranged on two sides of the outer plate body and are connected with the wiring terminals through the connecting screws; the conducting strip is electrically connected with the connecting plate.
Preferably, the device and the method for rapidly detecting leakage of the heat distribution pipeline comprise the following steps:
the method comprises the following steps: firstly, connecting detection mechanisms with a pipe body section by section, fixing a box body on the outer wall of the pipe body through a first limiting belt and a second limiting belt, after the previous detection mechanism is fixed, installing the other detection mechanism in the same mode in the area behind the previous detection mechanism, then connecting a connecting plate at one end of a conductive mechanism with a binding post of the first box body through a connecting screw, and connecting a connecting plate at the other end of the conductive mechanism with a binding post of the next box body through a connecting screw, so that the electrical connection among the detection mechanisms can be realized, and the operation is repeated to finish the installation of detection equipment;
step two: when the probe is not used, the probe is arranged in a cavity structure surrounded by the protection plate, the side plate and the support plate, so that the probe is protected in a sealing way; when the heating system is started in winter, the whole detection system is connected with an external power supply, then the electromagnet is electrified and adsorbs the magnet, the spring is elongated, the support plate drives the protection plate to move downwards, the probe props against the corresponding sealing plate, the sealing plate is enabled to turn upwards and compress the torsion spring, and finally the probe penetrates through the mounting groove, so that real-time high-precision detection can be carried out;
step three: external current enters the thermistor through the wiring terminal, the resistance value of each probe can be changed according to the external environment temperature, the changed value can be shown through an ammeter, the current value in each box body can reflect the environment temperature of the section, the current value can be transmitted to a background host computer in a wired or wireless mode, and background personnel can give a proper fluctuation range to each section of area according to daily monitoring data; setting a leakage early warning value;
step four: when leakage occurs at a certain position, the environment temperature is increased due to the leakage of heating hot water, the resistance value of the probe is correspondingly increased, the ammeter value in the region is obviously reduced, the ammeter value behind the ammeter value is reduced, the background can analyze and judge after obtaining all data, the region where the initial falling value is directed is the leakage point region, and if the subsequent current value is uniformly fallen on the basis of the initial value, no leakage point exists behind the subsequent current value; if an irregular fall occurs somewhere behind, it can indicate that there is a possible leakage, and so on, find out each initial falling area, and then perform targeted maintenance.
Compared with the related art, the device and the method for rapidly detecting the leakage of the heat distribution pipeline have the following beneficial effects:
the invention provides a device and a method for rapidly detecting leakage of a heat distribution pipeline, wherein a box body can be rapidly placed on a pipe body through a first limiting belt and a second limiting belt, and the arrangement of detection equipment can be rapidly completed through the same method; can detect its regional ambient temperature who locates through thermistor, and when its region appears leaking, the discharge hot water can lead to thermistor's resistance increase, and then makes the electric current that the ampere meter detected reduce, and backstage personnel can obtain the initial whereabouts value of electric current through the analysis, and initial whereabouts value is the leak point promptly, realizes real-time supervision, seeks fast.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the rapid detection apparatus and method for thermal pipeline leakage according to the present invention;
FIG. 2 is a schematic structural view of the detecting mechanism shown in FIG. 1;
FIG. 3 is a schematic structural view of the moving mechanism shown in FIG. 2;
FIG. 4 is a schematic view of the connection structure of the fender shown in FIG. 2;
FIG. 5 is a schematic view of the conductive mechanism shown in FIG. 4;
fig. 6 is a flow chart of a method for rapidly detecting leakage of a thermal pipeline according to the present invention.
Reference numbers in the figures: 1. the device comprises a pipe body, 2, a detection mechanism, 21, a box body, 211, a binding post, 22, a first limit belt, 23, a second limit belt, 24, a thermistor, 241, a probe, 25, a moving mechanism, 251, a supporting pipe, 252, an electromagnet, 253, a magnet, 254, a spring, 255, a supporting plate, 26, a protective plate, 261, a mounting groove, 27, a sealing plate, 271, a torsion spring, 28, a side plate, 29, an ammeter, 3, a conductive mechanism, 31, an outer plate body, 32, a conductive sheet, 33, a connecting plate, 34 and a connecting screw.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Please refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 in combination, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of the apparatus and method for rapidly detecting a leakage of a thermal pipeline according to the present invention; FIG. 2 is a schematic structural view of the detecting mechanism shown in FIG. 1; FIG. 3 is a schematic structural view of the moving mechanism shown in FIG. 2; FIG. 4 is a schematic view of the connection structure of the fender shown in FIG. 2; fig. 5 is a schematic structural diagram of the conductive mechanism shown in fig. 4, and fig. 6 is a flowchart of a method for rapidly detecting leakage of a thermal pipeline provided by the invention.
As shown in fig. 1 and fig. 2, a rapid detection apparatus for a leakage of a thermal pipe according to an embodiment of the present application includes: the device comprises a pipe body 1, a plurality of detection mechanisms 2 and a conductive mechanism 3, wherein the detection mechanisms 2 are sequentially connected in series and fixed on the outer wall of the pipe body 1; the conductive mechanism 3 is disposed between the two detection mechanisms 2, and the conductive mechanism 3 is configured to conduct the current of the previous detection mechanism 2 to the next detection mechanism 2.
In a specific implementation process, the detection mechanism 2 comprises a box body 21, a first limit belt 22, a second limit belt 23, a thermistor 24 and an ammeter 29; the box body 21 is fixed on the outer wall of the tube body 1 through the first limit belt 22 and the second limit belt 23, a thermistor 24 and an ammeter 29 are installed inside the box body 21, two binding posts 211 are symmetrically arranged on the surface of the box body 21, and one binding post 211, the thermistor 24, the ammeter 29 and the other binding post 211 are sequentially connected in series; probes 241 are distributed on the surface of the thermistor 24, and the probes 241 extend out of the top surface of the box body 21; the probe 241 is used to detect hot water leakage.
The first limiting belt 22 and the second limiting belt 23 are connected in a buckling manner, and the first limiting belt 22 and the second limiting belt 23 are symmetrically wrapped on the outer wall of the pipe body 1; the first limiting belt 22 and the second limiting belt 23 in the buckling mode can quickly fix the detection mechanism 2 on the outer wall of the pipe body 1, so that the installation and fixation are more convenient and faster.
The detection mechanism 2 further comprises a moving mechanism 25, a protection plate 26 and a side plate 28, and the moving mechanism 25 is symmetrically arranged on two sides of the thermistor 24; two side walls of the protection plate 26 are fixedly connected with the moving mechanism 25, and the other two side walls of the protection plate 26 are attached to the two side plates 28 to slide; the side plate 28 is arranged on the top surface of the box body 21; the two moving mechanisms 25, the protection plate 26, the side plate 28 and the top surface of the box body 21 form a sealed cavity structure; the probe 241 can be protected by a sealed cavity structure formed by the moving mechanism 25, the protection plate 26 and the side plate 28, the probe 241 is prevented from being damaged, and the service life is prolonged.
The moving mechanism 25 comprises a support tube 251, an electromagnet 252, a magnet 253, a spring 254 and a support plate 255; the supporting tube 251 is arranged on the inner wall of the box body 21, and the supporting plate 255 is sleeved inside the supporting tube 251; the bottom end of the support plate 255 is provided with the magnet 253, and the bottom end inside the support tube 251 is provided with the electromagnet 252; the electromagnet 252 is electrically connected with the terminal 211; the spring 254 is connected to the top surface of the magnet 253, and the spring 254 is sleeved outside the support plate 255; the inner wall of the top end of the support plate 255 is fixedly connected with the protection plate 26; the surface of the protection plate 26 is provided with an installation groove 261, and a sealing plate 27 is fixed inside the installation groove 261; a torsion spring 271 is arranged at the joint of the sealing plate 27 and the mounting groove 261; the installation groove 261 is located right above the probe 241, and the installation groove 261 and the probe 241 are distributed oppositely; when the power is on, the electromagnet 252 adsorbs the magnet 253, so that the support plate 255 is driven to be retracted into the support tube 251, the protection plate 26 is driven to move downwards, each probe 241 jacks up the corresponding sealing plate 27 and extends out, free switching between work and protection is realized, and detection precision is guaranteed.
The conductive mechanism 3 comprises an outer plate body 31, a conductive sheet 32, a connecting plate 33 and a connecting screw 34, wherein the conductive sheet 32 is installed inside the outer plate body 31; connecting plates 33 are symmetrically arranged on two sides of the outer plate body 31, and the connecting plates 33 are connected with the binding posts 211 through the connecting screws 34; the conductive sheet 32 is electrically connected to the connection board 33; can be fast with different detection mechanism 2 electric connection together through electrically conductive mechanism 3, realize that whole detection circuitry is all circular telegram and is carried out real-time supervision.
Referring to fig. 6, fig. 6 is a schematic flow chart of a method for rapidly detecting a leakage of a thermal pipe according to the present invention, where the method for rapidly detecting a leakage of a thermal pipe includes the following steps:
the method comprises the following steps: firstly, connecting the detection mechanisms 2 with the pipe body 1 section by section, fixing the box body 21 on the outer wall of the pipe body 1 through the first limit belt 22 and the second limit belt 23, after the previous detection mechanism 2 is fixed, installing the other detection mechanism 2 in the area behind the previous detection mechanism in the same way, then connecting a connecting plate 33 at one end of the conductive mechanism 3 with a binding post 211 of the first box body 21 through a connecting screw 34, and connecting a connecting plate 33 at the other end with a binding post 211 of the next box body 21 through a connecting screw 34, so that the electrical connection among the detection mechanisms 2 can be realized, and the operation is repeated to finish the installation of the detection equipment;
step two: when not in use, the probe 241 is placed in a cavity structure enclosed by the protection plate 26, the side plate 28 and the support plate 255, so that the probe 241 is protected in a sealing manner; when the heating system is started in winter, the whole detection system is connected with an external power supply, then the electromagnet 252 is electrified and adsorbs the magnet 253, the spring 254 is stretched, the support plate 255 drives the protection plate 26 to move downwards, the probe 241 is abutted against the corresponding sealing plate 27, so that the sealing plate 27 turns upwards and compresses the torsion spring 271, and finally the probe 241 penetrates through the mounting groove 261 to perform real-time high-precision detection;
step three: external current enters the thermistor 24 through the wiring terminal 211, the resistance value of each probe 241 can be changed according to the external environment temperature, the changed value can be shown through the ammeter 29, the current value in each box body 21 can reflect the environment temperature of the section, the current value can be transmitted to the background host computer in a wired or wireless mode, and background personnel can give a proper fluctuation range to each section of area according to daily monitoring data; setting a leakage early warning value;
step four: when leakage occurs at a certain position, the environment temperature is increased due to the leakage of the heating hot water, the resistance value of the probe 241 is correspondingly increased, the numerical value of the ammeter 29 in the region is obviously reduced, the numerical value of the ammeter 29 behind the current is reduced, the background can analyze and judge after obtaining all data, the region where the initial falling value is directed is the leakage point region, and if the subsequent current value falls uniformly on the basis of the initial value, no leakage point exists behind the current value; if an irregular fall occurs somewhere behind, it can indicate that there is a possible leakage, and so on, find out each initial falling area, and then perform targeted maintenance.
The working principle of the rapid detection device and the rapid detection method for the leakage of the heat distribution pipeline provided by the invention is as follows:
firstly, connecting the detection mechanisms 2 with the pipe body 1 section by section, fixing the box body 21 on the outer wall of the pipe body 1 through the first limit belt 22 and the second limit belt 23, after the previous detection mechanism 2 is fixed, installing the other detection mechanism 2 in the area behind the previous detection mechanism in the same way, then connecting a connecting plate 33 at one end of the conductive mechanism 3 with a binding post 211 of the first box body 21 through a connecting screw 34, and connecting a connecting plate 33 at the other end with a binding post 211 of the next box body 21 through a connecting screw 34, so that the electrical connection among the detection mechanisms 2 can be realized, and the operation is repeated to finish the installation of the detection equipment;
when not in use, the probe 241 is placed in a cavity structure enclosed by the protection plate 26, the side plate 28 and the support plate 255, so that the probe 241 is protected in a sealing manner; when the heating system is started in winter, the whole detection system is connected with an external power supply, then the electromagnet 252 is electrified and adsorbs the magnet 253, the spring 254 is stretched, the support plate 255 drives the protection plate 26 to move downwards, the probe 241 is abutted against the corresponding sealing plate 27, so that the sealing plate 27 turns upwards and compresses the torsion spring 271, and finally the probe 241 penetrates through the mounting groove 261 to perform real-time high-precision detection;
external current enters the thermistor 24 through the wiring terminal 211, the resistance value of each probe 241 can be changed according to the external environment temperature, the changed value can be shown through the ammeter 29, the current value in each box body 21 can reflect the environment temperature of the section, the current value can be transmitted to the background host computer in a wired or wireless mode, and background personnel can give a proper fluctuation range to each section of area according to daily monitoring data; setting a leakage early warning value;
when leakage occurs at a certain position, the environment temperature is increased due to the leakage of the heating hot water, the resistance value of the probe 241 is correspondingly increased, the numerical value of the ammeter 29 in the region is obviously reduced, the numerical value of the ammeter 29 behind the current is reduced, the background can analyze and judge after obtaining all data, the region where the initial falling value is directed is the leakage point region, and if the subsequent current value falls uniformly on the basis of the initial value, no leakage point exists behind the current value; if an irregular fall occurs somewhere behind, it can indicate that there is a possible leakage, and so on, find out each initial falling area, and then perform targeted maintenance.
Compared with the related art, the device and the method for rapidly detecting the leakage of the heat distribution pipeline have the following beneficial effects:
the invention provides a device and a method for rapidly detecting leakage of a heat distribution pipeline, wherein a box body 21 can be rapidly placed on a pipe body 1 through a first limiting belt 22 and a second limiting belt 23, and the arrangement of detection equipment can be rapidly completed through the same method; can detect the ambient temperature of its region of locating through thermistor 24, and when its region appeared leaking, the discharge hot water can lead to thermistor 24's resistance increase, and then makes the electric current that ammeter 29 detected reduce, and backstage personnel can obtain the initial whereabouts value of electric current through the analysis, and the initial whereabouts value is the leak point promptly, realizes real-time supervision, seeks fast.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. A quick detection device of heating power pipeline leakage which characterized in that includes:
a pipe body;
the detection mechanisms are provided with a plurality of detection mechanisms, and the detection mechanisms are sequentially connected in series and fixed on the outer wall of the pipe body; the detection mechanism comprises a box body, a first limit belt, a second limit belt, a thermistor and an ammeter; the box body is fixed on the outer wall of the tube body through the first limit belt and the second limit belt, a thermistor and an ammeter are installed inside the box body, two binding posts are symmetrically arranged on the surface of the box body, and one binding post, the thermistor, the ammeter and the other binding post are sequentially connected in series; probes are distributed on the surface of the thermistor and extend out of the top surface of the box body; the probe is used for detecting leaked hot water;
the conductive mechanism is arranged between the two detection mechanisms and is used for conducting the current of the previous detection mechanism to the next detection mechanism;
the detection mechanism further comprises a moving mechanism, a protection plate and a side plate, and the moving mechanism is symmetrically arranged on two sides of the thermistor; two side walls of the protection plate are fixedly connected with the moving mechanism, and the other two side walls of the protection plate are attached to the two side plates in a sliding manner; the side plate is arranged on the top surface of the box body; the two moving mechanisms, the protection plate, the side plate and the top surface of the box body form a sealed cavity structure;
the moving mechanism comprises a supporting tube, an electromagnet, a magnet, a spring and a supporting plate; the supporting tube is arranged on the inner wall of the box body, and the supporting plate is sleeved in the supporting tube; the bottom end of the support plate is provided with the magnet, and the bottom end inside the support tube is provided with the electromagnet; the electromagnet is electrically connected with the wiring terminal; the top surface of the magnet is connected with the spring, and the spring is sleeved outside the support plate; the inner wall of the top end of the support plate is fixedly connected with the protection plate;
the surface of the protection plate is provided with an installation groove, and a sealing plate is fixed inside the installation groove; a torsional spring is arranged at the joint of the sealing plate and the mounting groove; the mounting groove is located directly over the probe, the mounting groove with the probe distributes relatively.
2. The thermal pipeline leakage rapid detection device of claim 1, wherein the first and second limiting belts are connected in a snap fit manner, and the first and second limiting belts are symmetrically wrapped on the outer wall of the pipe body.
3. The device for rapidly detecting leakage of a heat distribution pipeline according to claim 1, wherein the conductive mechanism comprises an outer plate body, a conductive sheet, a connecting plate and a connecting screw, and the conductive sheet is mounted inside the outer plate body; connecting plates are symmetrically arranged on two sides of the outer plate body and are connected with the wiring terminals through the connecting screws; the conducting strip is electrically connected with the connecting plate.
4. A method for rapidly detecting leakage of a heat distribution pipeline is characterized by comprising the following steps:
the method comprises the following steps: firstly, connecting detection mechanisms with a pipe body section by section, fixing a box body on the outer wall of the pipe body through a first limiting belt and a second limiting belt, after the previous detection mechanism is fixed, installing the other detection mechanism in the same mode in the area behind the previous detection mechanism, then connecting a connecting plate at one end of a conductive mechanism with a binding post of the first box body through a connecting screw, and connecting a connecting plate at the other end of the conductive mechanism with a binding post of the next box body through a connecting screw, so that the electrical connection among the detection mechanisms can be realized, and the operation is repeated to finish the installation of detection equipment;
step two: when the probe is not used, the probe is arranged in a cavity structure surrounded by the protection plate, the side plate and the support plate, so that the probe is protected in a sealing way; when the heating system is started in winter, the whole detection system is connected with an external power supply, then the electromagnet is electrified and adsorbs the magnet, the spring is elongated, the support plate drives the protection plate to move downwards, the probe props against the corresponding sealing plate, the sealing plate is enabled to turn upwards and compress the torsion spring, and finally the probe penetrates through the mounting groove, so that real-time high-precision detection can be carried out;
step three: external current enters the thermistor through the wiring terminal, the resistance value of each probe can be changed according to the external environment temperature, the changed value can be shown through an ammeter, the current value in each box body can reflect the environment temperature of the section, the current value can be transmitted to a background host computer in a wired or wireless mode, and background personnel can give a proper fluctuation range to each section of area according to daily monitoring data; setting a leakage early warning value;
step four: when leakage occurs at a certain position, the environment temperature is increased due to the leakage of heating hot water, the resistance value of the probe is correspondingly increased, the ammeter value in the region is obviously reduced, the ammeter value behind the ammeter value is reduced, the background can analyze and judge after obtaining all data, the region where the initial falling value is directed is the leakage point region, and if the subsequent current value is uniformly fallen on the basis of the initial value, no leakage point exists behind the subsequent current value; if an irregular fall occurs somewhere behind, it can indicate that there is a possible leakage, and so on, find out each initial falling area, and then perform targeted maintenance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811561661.6A CN109469826B (en) | 2018-12-20 | 2018-12-20 | Device and method for rapidly detecting leakage of heat distribution pipeline |
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| CN201811561661.6A CN109469826B (en) | 2018-12-20 | 2018-12-20 | Device and method for rapidly detecting leakage of heat distribution pipeline |
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| CN109469826B true CN109469826B (en) | 2020-08-14 |
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| CN102162765A (en) * | 2011-01-26 | 2011-08-24 | 南京航空航天大学 | System and method for detecting leakage of high-temperature gas in high-temperature high-pressure guide pipe of airplane |
| CN102997062A (en) * | 2011-09-14 | 2013-03-27 | 中国石油天然气集团公司 | Optical fiber sensor-based natural gas pipeline leakage monitoring method and system and installation method for system |
| CN106402667A (en) * | 2016-11-24 | 2017-02-15 | 南京西奥仪表测控有限公司 | Online resistance type leakage preventing system |
| CN106644292A (en) * | 2016-12-28 | 2017-05-10 | 宁波市鄞州磁泰电子科技有限公司 | Heat distribution pipeline leakage magnetic temperature integration detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9146172B2 (en) * | 2011-01-03 | 2015-09-29 | Sentinel Hydrosolutions, Llc | Non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection |
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|---|---|---|---|---|
| CN102162765A (en) * | 2011-01-26 | 2011-08-24 | 南京航空航天大学 | System and method for detecting leakage of high-temperature gas in high-temperature high-pressure guide pipe of airplane |
| CN102997062A (en) * | 2011-09-14 | 2013-03-27 | 中国石油天然气集团公司 | Optical fiber sensor-based natural gas pipeline leakage monitoring method and system and installation method for system |
| CN106402667A (en) * | 2016-11-24 | 2017-02-15 | 南京西奥仪表测控有限公司 | Online resistance type leakage preventing system |
| CN106644292A (en) * | 2016-12-28 | 2017-05-10 | 宁波市鄞州磁泰电子科技有限公司 | Heat distribution pipeline leakage magnetic temperature integration detection method |
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