CN108167659B - Liquid leakage detection device and detection method for floor heating pipeline - Google Patents
Liquid leakage detection device and detection method for floor heating pipeline Download PDFInfo
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- CN108167659B CN108167659B CN201810007085.4A CN201810007085A CN108167659B CN 108167659 B CN108167659 B CN 108167659B CN 201810007085 A CN201810007085 A CN 201810007085A CN 108167659 B CN108167659 B CN 108167659B
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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 discloses a liquid leakage detection device for a floor heating pipeline, which comprises an insulation detection module, wherein one end of the insulation detection module is connected with a position detection module arranged close to the floor heating pipeline, the other end of the insulation detection module is connected with a control module, one output end of the control module is connected with an alarm module, and the other output end of the control module is connected with a liquid inlet cutting-off module arranged at the water inlet end of the pipeline; the position detection module comprises a first conductive beam, a second conductive beam and a first spacing layer for separating the first conductive beam from the second conductive beam, the first conductive beam and the second conductive beam are insulated when dry and conducted when soaked in water, and the control module processes the two groups of output impedances to obtain the leakage position and the leakage amount of the pipeline. The invention processes the impedance values of the immersed first conductive beam and the immersed second conductive beam, detects the leakage position and the leakage amount of the pipeline, and has the advantages of high sensitivity, reasonable design, simple structure and easy operation.
Description
Technical Field
The invention belongs to the technical field of floor heating, and particularly relates to a liquid leakage detection device and a liquid leakage detection method for a floor heating pipeline.
Background
The floor heating is a heating mode in which the whole floor is used as a radiator, the whole heating gradient is gradually heated from bottom to top, and compared with the traditional convection heating, the floor heating can provide comfortable feeling of warming feet and cooling heads for people, and accords with the body-building theory of 'warming feet and cooling tops' in the traditional Chinese medicine; the energy waste is greatly reduced by concentrating the heat to benefit the human body, the low-temperature hot water resource or the electricity price policy can be fully utilized, the operation cost is reduced, and the energy consumption is at least saved by 20 percent compared with other heating modes; the air is clean, and the convection of the dirty air is avoided; can improve blood circulation and promote metabolism; heating radiators and branch pipes are omitted, the heating radiators and the branch pipes are laid underground, the room space is not occupied, and the use area is increased on the side face; the floor heating has good stability, no corrosion, no artificial damage and synchronous service life with the building.
However, floor heating is a hidden project, and is buried under the floor, so that the detection and the maintenance are difficult. Even if the material with pressure resistance, temperature resistance, corrosion resistance and good thermal stability is used during laying, the failure of the whole life cannot be guaranteed. Once the leakage fault is often difficult to find, the floor soaking water, the equipment water intake and other consequences can be caused when the leakage fault is found, and other surrounding residents can be affected, so that the leakage fault can bear loss by the residents and can also cause loss of other users.
Disclosure of Invention
The invention aims to solve the problems and provides a floor heating pipeline liquid leakage detection device which can detect the leakage position of a pipeline and obtain the leakage amount, and has the advantages of reasonable design, simple structure, high control precision and good working stability.
In order to achieve the purpose, the invention adopts the following technical scheme:
a liquid leakage detection device for a floor heating pipeline comprises an insulation detection module, wherein one end of the insulation detection module is connected with a position detection module arranged close to the floor heating pipeline, the other end of the insulation detection module is connected with a control module, one output end of the control module is connected with an alarm module, and the other output end of the control module is connected with a liquid inlet cutting-off module arranged at a water inlet end of the pipeline;
the position detection module comprises a first conductive beam, a second conductive beam and a first spacing layer for separating the first conductive beam from the second conductive beam, wherein the first conductive beam and the second conductive beam are insulated when dry and conducted when immersed in water;
when the first conductive bundle is conducted with the second conductive bundle, the insulation detection module outputs the impedance values of the first conductive bundle and the second conductive bundle to the control module, and the control module processes the two groups of impedance values to obtain the leakage position and the leakage amount:
wherein, R1 is the impedance of the first conductive beam after leakage, R2 is the impedance of the second conductive beam after leakage, Rx is the resistance per meter of the second conductive beam, and S is the distance from the leakage point to the detection port of the insulation monitoring module.
The position detection module is laid close to the floor heating pipeline, and the position detection module and the pipeline are wrapped together by using materials such as transparent adhesive tapes. The ground heating pipeline is provided with a water inlet end and a water outlet end, and the liquid inlet cutting-off module is arranged at the water inlet end of the ground heating pipeline. The first and second conductive strands are not in contact with each other and are preferably arranged in parallel. The first spacing layer is made of insulating gap material, the insulating gap material is made of insulating material, and the middle of the insulating gap material is provided with a gap through which liquid passes and can be sponge. The first spacing layer can also be used as a limiting piece to enable the first conductive beam and the second conductive body to be arranged in the same way. The impedance between the metal wires when water does not leak is set as initial impedance, and the impedance value when water leaks is determined through a plurality of experiments and is set as a threshold value. And when the impedance value of the first conductive beam is smaller than the threshold value, the leakage is considered to exist, and meanwhile, the control module compares the impedance value of the second conductive beam with the impedance group of the first conductive beam to calculate the leakage position. The leakage amount of the pipeline is approximately obtained by comparing the impedance of the immersed first conductive beam with the initial impedance, the pipeline is considered to have larger leakage when the impedance after immersion is greatly reduced, and the pipeline is considered to have smaller leakage when the impedance is less reduced.
Further, the first conductive bundle comprises two groups of metal wires and a second spacing layer for separating the metal wires; the second conductive bundle comprises two groups of resistance wires and a third interlayer for separating the resistance wires. The first conductive beam is a metal wire with small resistance, and the second conductive beam is a resistance wire with large resistance. The two groups of metal wires are not in contact with each other and are preferably arranged in parallel. The two groups of resistance wires are not contacted with each other, and are preferably arranged in parallel. The second and third spacers are of insulating gapped material which is both an insulating material and intermediate with a gap for the passage of liquid, e.g. the spacers are sponges. The second interlayer and the third interlayer can also be used as limiting parts, so that the two groups of metal wires are arranged consistently, and the two groups of resistance wires are also arranged consistently.
Furthermore, the input end of the control module is connected with a power module for supplying power to the detection device.
Further, the alarm module comprises a display screen and a buzzer. The display screen displays the leakage position, and the buzzer gives out an alarm sound. And sending an alarm to inform a user or maintenance personnel after the alarm signal is sent.
Further, the multimeter tests the position detection module for a short circuit condition and tests the first and second conductive beams for respective open circuits. If the first conductive beam and the second conductive beam are not open or short-circuited, the next installation can be performed.
A method for detecting liquid leakage of a floor heating pipeline comprises the following steps:
(1) the insulation detection module measures impedance values of the first conductive beam and the second conductive beam immersed in water in the position detection module;
(2) the control module receives the impedance values of the first conductive beam and the second conductive beam output by the insulation detection module, processes the two groups of impedance values to obtain a leakage position and a leakage amount, and sends out an alarm signal and a control signal;
(3) the alarm module sends an alarm after receiving the alarm signal sent by the control module, and the liquid inlet cutting module cuts off the liquid inlet of the pipeline after receiving the control signal sent by the control module and displays the leakage position and the leakage amount.
Further, according to step (3), the leak location is found by comparing the layout.
After the pipeline detection device is installed, the layout information of the first conductive beam and the second conductive beam is input into the control module, and the leakage position is found out by comparing the layout.
The working process of the invention is as follows:
compared with the prior art, the invention has the advantages that:
1. through handling the first conductive bundle of soaking and the electrically conductive impedance value of second, can detect the leakage position and let out leakage quantity, sensitivity is high, reasonable in design, simple structure easily operates.
2. The metal wires are arranged behind the pipeline, so that the installation, the replacement and the disassembly are easy.
3. The first conductive beam and the second conductive beam are arranged in parallel, and the detection precision is high.
4. The position detection module is positioned on the ground, so that the problem of material aging is avoided.
5. Set up alarm module and feed liquor and cut off the module, can in time send alarm signal and cut off the ground heating pipeline feed liquor, remind user or maintenance personal, reduce the loss.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
FIG. 3 is a cross-sectional view of a position detection module according to the present invention.
The labels in the figure are: the system comprises a ground heating pipeline 1, a water inlet end 11, a water outlet end 12, an insulation detection module 2, a position detection module 3, a control module 4, an alarm module 5, a liquid inlet cutting module 6, a first conductive bundle 31, a second conductive bundle 32, a first spacing layer 33, a metal wire 311, a resistance wire 321, a second spacing layer 312, a third spacing layer 322 and a power module 7.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
Example 1
A liquid leakage detection device for a floor heating pipeline comprises an insulation detection module 2, wherein one end of the insulation detection module 2 is connected with a position detection module 3 which is arranged close to the floor heating pipeline 1, the other end of the insulation detection module is connected with a control module 4, one output end of the control module 4 is connected with an alarm module 5, and the other output end of the control module 4 is connected with a liquid inlet cutting-off module 6 which is arranged at a water inlet end 11 of the pipeline;
the position detection module 3 comprises a first conductive beam 31, a second conductive beam 32, and a first spacing layer 33 for separating the first conductive beam 31 and the second conductive beam 32, wherein the first conductive beam 31 and the second conductive beam 32 are insulated when dry and conducted when immersed in water;
when the first spacing layer 33 is turned on, the insulation detection module 2 outputs the impedance values of the first conductive beam 31 and the second conductive beam 32 to the control module 4, and the control module 4 processes the two sets of impedance values to obtain the leakage position and the leakage amount:
wherein, R1 is the impedance of the first conductive beam 31 after leakage, R2 is the impedance of the second conductive beam 32 after leakage, Rx is the resistance per meter of the second conductive beam, and S is the distance from the leakage point to the detection port of the insulation monitoring module 2.
The position detection module 3 is laid close to the floor heating pipeline 1, and the position detection module 3 and the floor heating pipeline 1 are wrapped together by using materials such as transparent adhesive tapes. The floor heating pipeline 1 is provided with a water inlet end 11 and a water outlet end 12, and the liquid inlet cutting-off module 6 is arranged at the water inlet end of the floor heating pipeline 1. The first conductive strands 31 and the second conductive strands 32 are not in contact with each other and are preferably arranged in parallel.
The first spacer layer 33 is an insulating gap material, which is an insulating material, and may be a sponge with a gap for liquid to pass through. The first spacing layer 33 may also serve as a stopper to make the first conductive beam 31 and the second conductive beam 32 arranged in the same manner. The two groups of metal wires 311 of the first conductive bundle 31 are immersed in water, the monitored impedance data is read by the insulation detection module 2, and the impedance value at this time is set as a threshold value. When the impedance value of the first conductive beam 31 is less than the threshold value, it is determined that there is a leak, and the control module 4 compares the impedance value of the second conductive beam 32 with the impedance value of the first conductive beam 31 to calculate the location of the leak. The leakage amount of the pipeline 1 is approximately obtained by comparing the impedance of the immersed first conductive bundle 31 with the initial impedance, and the leakage amount is considered to be large when the impedance after immersion is greatly reduced, and small when the impedance is reduced. The first conductive bundle 31 includes two sets of wires 311, and a second spacer layer 312 for separating the wires 311; the second conductive bundle 32 comprises two sets of resistance wires 321, and a third spacer layer 322 for separating the resistance wires 321. The first conductive bundle 31 is a metal wire 311 with a smaller resistance, and the second conductive bundle 32 is a resistance wire 321 with a larger resistance. The two sets of wires 311 are not in contact with each other and are preferably arranged in parallel. The two sets of resistance wires 321 are not in contact with each other, and are preferably arranged in parallel. The second spacer layer 312 and the third spacer layer 322 are insulating gap materials, which are both insulating materials, and have a gap for liquid to pass through, which may be a sponge. The second spacer layer 312 and the third spacer layer 322 may also be used as a limiting member, so that the two groups of metal wires 311 are arranged in the same manner, and the two groups of resistance wires 321 are also arranged in the same manner.
The input end of the control module 4 is connected with a power module 7 for supplying power to the detection device.
The alarm module 5 comprises a display screen and a buzzer. The display screen displays the leakage position, and the buzzer gives out an alarm sound. And sending an alarm to inform a user or maintenance personnel after the alarm signal is sent.
The multimeter tests the position detection module for a short circuit condition and tests the first and second conductive beams 31 and 32 for a break condition, respectively. If neither the first conductive beam 31 nor the second conductive beam 32 is open or short-circuited, the next step of mounting can be performed.
Example 2
A floor heating pipe liquid leakage detecting device is the same as embodiment 1. A method for detecting liquid leakage of a floor heating pipeline comprises the following steps:
(1) the insulation detecting module 2 measures the impedance values of the immersed first and second conductive beams 31 and 32;
(2) the control module 4 receives the impedance values of the first conductive beam 31 and the second conductive beam 32 output by the insulation detection module 2, processes the two groups of impedance values to obtain a leakage position and a leakage amount, and sends out an alarm signal and a control signal;
(3) the alarm module 5 sends an alarm after receiving the alarm signal sent by the control module 4, and the liquid inlet cutting module 6 cuts off the liquid inlet of the pipeline and displays the leakage position and the leakage amount after receiving the control signal sent by the control module 4. According to step (3), the location of the leak is found by comparing the map.
After the pipeline inspection device is installed, the layout information of the first conductive beam 31 and the second conductive beam 32 is input into the control module 4, and the leakage position is found by comparing the layout.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the spirit of the present invention, and these modifications and decorations should also be regarded as being within the scope of the present invention.
Claims (7)
1. A liquid leakage detection device for a floor heating pipeline is characterized by comprising an insulation detection module, wherein one end of the insulation detection module is connected with a position detection module arranged close to the floor heating pipeline, the other end of the insulation detection module is connected with a control module, one output end of the control module is connected with an alarm module, and the other output end of the control module is connected with a liquid inlet cutting-off module arranged at a water inlet end of the pipeline;
the position detection module comprises a first conductive beam, a second conductive beam and a first spacing layer for separating the first conductive beam from the second conductive beam, wherein the first conductive beam and the second conductive beam are insulated when dry and conducted when immersed in water; the first conductive bundle is a metal wire with small resistance, the second conductive bundle is a resistance wire with large resistance, and the first conductive bundle comprises two groups of metal wires and a second spacing layer for separating the metal wires; the second conductive bundle comprises two groups of resistance wires and a third interlayer for separating the resistance wires;
when the inside of the first conductive bundle and the inside of the second conductive bundle are respectively conducted, the insulation detection module outputs the impedance values of the first conductive bundle and the second conductive bundle to the control module, and the control module processes the two groups of impedance values to obtain the leakage position:
wherein, R1 is the impedance of the first conductive beam after leakage, R2 is the impedance of the second conductive beam after leakage, Rx is the resistance per meter of the second conductive beam, and S is the distance from the leakage point to the detection port of the insulation detection module.
2. A floor heating pipe liquid leakage detecting device according to claim 1, wherein the first spacer layer, the second spacer layer and the third spacer layer are all insulating materials, and there is a gap for liquid to pass through.
3. A floor heating pipe liquid leakage detection apparatus as claimed in claim 1, wherein the input of the control module is connected to a power module for supplying power to the detection apparatus.
4. A floor heating pipe liquid leakage detecting device according to claim 1, wherein the alarm module includes a display screen and a buzzer.
5. A floor heating pipe liquid leak detection apparatus as set forth in claim 1, wherein the multimeter tests the position detection module for a short circuit condition and tests the first and second conductive beams for a break condition, respectively.
6. A floor heating pipeline liquid leakage detection method using the detection device of claim 1 is characterized by comprising the following steps:
(1) the insulation detection module measures impedance values of the first conductive beam and the second conductive beam immersed in water in the position detection module;
(2) the control module receives the impedance values of the first conductive beam and the second conductive beam output by the insulation detection module, processes the two groups of impedance values to obtain a leakage position, and sends out an alarm signal and a control signal;
(3) the alarm module sends an alarm after receiving the alarm signal sent by the control module, and the liquid inlet cutting module cuts off the liquid inlet of the pipeline and displays the leakage position after receiving the control signal sent by the control module.
7. A method for detecting liquid leakage from floor heating pipe according to claim 6, wherein according to step (3), the leakage position is found by comparing the layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810007085.4A CN108167659B (en) | 2018-01-04 | 2018-01-04 | Liquid leakage detection device and detection method for floor heating pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810007085.4A CN108167659B (en) | 2018-01-04 | 2018-01-04 | Liquid leakage detection device and detection method for floor heating pipeline |
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| CN108167659A CN108167659A (en) | 2018-06-15 |
| CN108167659B true CN108167659B (en) | 2020-03-03 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108613019B (en) * | 2018-07-27 | 2024-05-03 | 青岛澳科仪器有限责任公司 | Double-layer pipeline leakage detection device |
| CN111322525B (en) * | 2020-04-15 | 2022-02-08 | 湖州市南浔创业测绘与土地规划院股份有限公司 | Underground pipeline detection method |
| CN112963739B (en) * | 2021-02-04 | 2022-10-28 | 曹海涛 | South-to-north water diversion and water transfer system with fault self-checking function |
| CN114001874A (en) * | 2021-09-30 | 2022-02-01 | 苏州浪潮智能科技有限公司 | Liquid cooling device, liquid leakage detection method thereof and liquid leakage detection circuit |
| CN115405866A (en) * | 2022-05-09 | 2022-11-29 | 信弘智维(北京)科技有限公司 | Floor heating and wall body hidden position water pipe water leakage point rapid detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5679229A (en) * | 1979-11-30 | 1981-06-29 | Toshiba Corp | Leakage detector for conduit |
| AT501758B1 (en) * | 2005-07-13 | 2006-11-15 | Bier Guenther Ing | METHOD OF LOCATING LEAKAGE IN TUBE |
| CN102967418B (en) * | 2012-11-23 | 2016-06-15 | 广东易事特电源股份有限公司 | A kind of leak localization system and device |
| CN104266087B (en) * | 2014-10-08 | 2017-02-15 | 西安科技大学 | In-ground type tap water pipeline leak detection device and detection method |
| CN205244847U (en) * | 2015-11-27 | 2016-05-18 | 张瀚方 | Heating installation detection alarm device that leaks |
| CN106123109B (en) * | 2016-08-05 | 2022-02-15 | 倪晨钧 | Pipeline monitoring system |
| CN107143753B (en) * | 2017-07-19 | 2022-12-27 | 中国瑞林工程技术股份有限公司东莞分公司 | Drainage pipe network capable of detecting water leakage and detection method |
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