CN114593373A - City gas pipeline leakage detection positioner - Google Patents
City gas pipeline leakage detection positioner Download PDFInfo
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- CN114593373A CN114593373A CN202210252033.XA CN202210252033A CN114593373A CN 114593373 A CN114593373 A CN 114593373A CN 202210252033 A CN202210252033 A CN 202210252033A CN 114593373 A CN114593373 A CN 114593373A
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- 238000001514 detection method Methods 0.000 title claims abstract description 59
- 238000009434 installation Methods 0.000 claims description 23
- 239000007789 gas Substances 0.000 description 62
- 238000000034 method Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- 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
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention belongs to the technical field of gas pipeline leakage positioning, and provides an urban gas pipeline leakage detection positioning device which comprises a first detection group and a second detection group, wherein the first detection group is arranged at the front end of a gas pipeline; the first detection group and the second detection group are both electrically connected with an acquisition module, the acquisition module is electrically connected with a positioning module, and the acquisition module is electrically connected with a control terminal; the first detection group and the second detection group comprise a flowmeter and a pressure transmitter. The gas pipeline leakage detection device is simple in structure, and whether the gas pipeline leaks or not is determined by comparing the flow information and the pressure information of the front end of the gas pipeline with the flow information and the pressure information of the tail end of the gas pipeline.
Description
Technical Field
The invention belongs to the technical field of gas pipeline leakage positioning, and particularly relates to a city gas pipeline leakage detection positioning device.
Background
At present, the gas pipeline is one of the essential important facilities in the city, and makes great contribution to the living standard of people. However, due to aging of gas pipeline equipment, geography, climate and human damage, accidents such as gas pipeline leakage often occur. If the gas pipeline leaks, the gas pipeline needs to be repaired in time so as to avoid property loss and environmental pollution caused by natural gas leakage.
In the prior art, for the leakage detection of a gas pipeline, detection methods commonly used at home and abroad are mainly divided into a direct detection method and an indirect detection method, the former includes a manual inspection method, an airborne infrared method, a leak detection cable system method and the like, and the latter includes a negative pressure wave method, a pressure point analysis method, a pressure wave method, a sound wave method, a mass balance method, a neural network-based method and the like. However, these methods have major disadvantages in that they are poor in real-time performance, cannot perform continuous detection, are high in investment cost, and affect normal transportation of materials.
Disclosure of Invention
The invention aims to solve the problems recorded in the background technology and provides a leakage detection positioning device for an urban gas pipeline.
In order to achieve the purpose, the invention adopts the following technical scheme: a city gas pipeline leakage detection positioning device comprises a first detection group arranged at the front end of a gas pipeline and a second detection group arranged at the tail end of the gas pipeline;
the first detection group and the second detection group are both electrically connected with an acquisition module, the acquisition module is electrically connected with a positioning module, and the acquisition module is electrically connected with a control terminal;
the first detection group and the second detection group comprise a flowmeter and a pressure transmitter.
In a preferred embodiment of the present invention, the flow meters of the first detection group are paired to obtain first flow information of the front end in the gas pipeline, the pressure transmitters of the first detection group are paired to obtain first pressure information of the front end in the gas pipeline, and the acquisition module is configured to obtain the first flow information and the first pressure information to send to the control terminal to generate the information a;
the flow meter of the second detection group is used for acquiring second flow information of the tail end in the gas pipeline, the pressure transmitter of the second detection group is used for acquiring second pressure information of the tail end in the gas pipeline, and the acquisition module is used for acquiring the second flow information and the second pressure information to send to the control terminal to generate information B;
and the control terminal acquires the information A and the information B to compare and judge whether the gas pipeline leaks.
In a preferred embodiment of the present invention, the positioning module sends positioning information to the acquisition module, and the acquisition module sends the positioning information to the control terminal, and the control terminal determines the source positions of the information a and the information B.
In a preferred embodiment of the present invention, the system further includes a prompt module, the prompt module is electrically connected to the control terminal, and when the control terminal compares the information a and the information B, if a difference between the information a and the information B exceeds a preset range, the prompt module gives an alarm.
In a preferred embodiment of the present invention, a protection installation set for installing the first detection set and the second detection set is included, and the protection installation set includes at least two installation parts.
In a preferred embodiment of the present invention, the mounting portion includes an outer cylinder and an inner cylinder, a mounting cavity is formed between the outer cylinder and the inner cylinder, and the mounting cavity is used for mounting the flow meter and the pressure transmitter of the flow meter.
In a preferred embodiment of the present invention, the inner cylinder is vertically slidably connected to a clamping portion along a circumferential direction thereof, and the clamping portion is threadedly connected to a clamping shaft rotatably connected to the outer cylinder.
In a preferred embodiment of the invention, an elastic layer is fixedly connected to the side of the clamping portion remote from the clamping axis.
In a preferred embodiment of the invention, the two sides of the installation cavity are provided with the closing plates, and the two sides of the closing plates are installed on the inner cylinder and the outer cylinder.
The principle and the beneficial effects of the invention are as follows:
1. according to the invention, the positioning information is sent to the control terminal through the positioning module and the acquisition module, and the positions of the front end and the tail end of the gas pipeline can be determined through the positioning information, so that the gas pipeline is positioned, and an operator can conveniently and rapidly find a leakage pipeline.
2. The method comprises the steps of detecting flow information and pressure information at the front end of the gas pipeline, detecting flow information and pressure information at the tail end of the gas pipeline, comparing the flow information at the front end of the gas pipeline and the flow information at the tail end of the gas pipeline when the controller terminal obtains the flow information at the front end of the gas pipeline, sending information to a prompt module by the control terminal if the flow information at the tail end is smaller than the flow information at the front end and exceeds a preset value, and reminding an operator and determining the position of the leaked gas pipeline through positioning information by the operator.
3. In the invention, in order to adapt to the condition that the gas pipeline is embedded underground all the year round, the flow meter and the pressure transmitter are protected through the protection installation assembly, namely, the flow meter and the pressure transmitter of the flow meter are installed in the installation cavity, so that the flow meter is protected from the pressure of soil and the corrosion of chemical substances in the soil. In the invention, the clamping part is also arranged, and the position of the clamping part can be adjusted through the clamping shaft so as to adapt to gas pipelines with different diameters.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a protective part according to the present invention.
FIG. 2 is a schematic illustration of the installation of the pressure transmitter of the present invention;
FIG. 3 is a schematic view of the installation of the flowmeter of the present invention;
FIG. 4 is a schematic structural view of the urban gas pipeline leakage detection positioning device in the invention;
FIG. 5 is a schematic circuit diagram of the urban gas pipeline leakage detection positioning device according to the invention.
Reference numerals in the drawings of the specification include: the device comprises an outer cylinder 11, an installation cavity 12, a clamping shaft 13, a clamping part 14, a sliding groove 15, an elastic layer 16, an inner cylinder 17, a sealing plate 18, a gas pipeline 21, a pressure transmitter 31, a flowmeter 41, a flowmeter 42, a control terminal 51, a collecting module 52, a positioning module 53, a first detection group 54 and a second detection group 55.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The application provides a city gas pipeline leakage detection positioning device, which is basically as shown in attached figures 1 and 2, fig. 3, fig. 4 and fig. 5, including two protection installation groups, protection installation group includes two at least protection parts, the protection part includes urceolus 11 and inner tube 17, constitute installation cavity 12 between urceolus 11 and the inner tube 17, the both sides of installation cavity 12 all are provided with closing plate 18, the equal bolt fastening in both ends of closing plate 18 is even on urceolus 11 and inner tube 17, be provided with a plurality of clamping parts 14 along its circumference on the inner tube 17, spout 15 has all been opened to the both sides of clamping part 14, be fixed with on the inner tube 17 with spout 15 horizontal sliding fit's slider, threaded connection has clamping shaft 13 on the clamping part 14, clamping shaft 13 runs through urceolus 11 and with urceolus 11 normal running fit, clamping part 14 keeps away from one side bonding of clamping shaft 13 and is fixed with elastic layer 16, elastic layer 16 is made by rubber materials.
In the present embodiment, one protection mounting group, i.e., two mounting portions, is mounted on the front end (left side in fig. 3) of the gas duct 21 and the tail end (right side in fig. 3) of the gas duct 21, respectively. During installation of the installation part, the inner cylinder 17 is sleeved on the gas pipeline 21, then the clamping shaft 13 is rotated, the clamping shaft 13 drives the clamping part 14 to move towards the gas pipeline 21 (due to the fact that the sliding block and the sliding groove 15 are limited to the clamping part 14), and the installation part is stably clamped on the inner cylinder 17.
In this embodiment, the portable electronic device further includes a first detection group 54 and a second detection group 55, both the first detection group 54 and the second detection group 55 are electrically connected to an acquisition module 52, and the acquisition module 52 is electrically connected to a positioning module 53, in this embodiment, the acquisition module 52 is a data acquisition station, and the positioning module 53 is a GPS instrument. The acquisition modules 52 are all electrically connected with a control terminal 51, and the control terminal 51 is a computer. The positioning module 53 and the acquisition module 52 are installed on the ground, and the gas pipeline 21 is embedded underground or arranged on the ground (namely, the detection positioning device is suitable for the embedded gas pipeline and is also suitable for the ground gas pipeline). Whether gas pipe 21 is installed on the ground or underground, flowmeter 41 and pressure transmitter 31 of first detection group 54 may be subject to some corrosion, and therefore, flowmeter 42 of flowmeter 41 is installed in installation cavity 12, pressure transmitter 31 is installed in installation cavity 12, and sealing of installation cavity 12 is performed by sealing plate 18 to protect flowmeter 42 (main electronic component part) of flowmeter 41, and to protect main electronic component part of pressure transmitter 31 to prolong the service life. In this embodiment, the power source of the flow meter 41 and the power source of the pressure transmitter are both from an external battery module or other power supply modules. The control terminal 51 is electrically connected with a prompt module, and the prompt module is a display.
When the gas meter 41 and the pressure transmitter 31 are installed on the gas pipeline in advance, then the inner cylinder 17 is sleeved on the gas meter 41 or the pressure transmitter 31, main components of the gas meter 41 or the pressure transmitter 31 penetrate through the inner cylinder 17, then the outer cylinder 11 is installed on the outer side of the inner cylinder 17, the clamping shaft 13 is rotated into the clamping part 14, and finally the closing plate 18 is installed.
When the leakage detection of the gas pipeline 21 is performed, the flowmeter 41 and the pressure transmitter located at the front end of the gas pipeline 21 acquire first flow information and first pressure information in the gas pipeline 21 and send the information to the acquisition module 52, the acquisition module 52 sends the positioning information, the first flow information and the first pressure information of the positioning module 53 to the control terminal 51, the control terminal 51 generates information a with the positioning information, the flowmeter 41 and the pressure transmitter located at the tail end of the gas pipeline 21 acquire second flow information and second pressure information in the gas pipeline 21 and send the information to the acquisition module 52, the acquisition module 52 sends the positioning information, the second flow information and the second pressure information of the positioning module 53 to the control terminal 51, and the control terminal 51 sends the information B with the positioning information, the first flow information and the first pressure information in the gas pipeline 21. The control terminal 51 determines the position of the gas pipeline 21, namely the source position of the information through the positioning information in the information a and the information B, so as to quickly specify the position of the gas pipeline 21. The control terminal 51 compares the first flow information of the information a with the second flow information of the information B, if the difference value between the first flow information and the second flow information is not within the preset range, the control terminal 51 sends prompt information to the prompt module, and reminds an operator through the prompt information, and at this time, the display displays the positioning information and the leakage information. Certainly, the control terminal 51 compares the first pressure information of the information a with the second pressure information of the information B, and if the difference value between the first pressure information and the second pressure information is not within the preset range (generally exceeds the preset range), the control terminal 51 sends a prompt message to the prompt module, and reminds an operator through the prompt message, and at this time, the display displays the positioning information and the leakage information.
In the embodiment, two kinds of information are synchronously compared and judged, so that the accuracy of positioning the leakage position is improved. If the flowmeter 41 fails, the pressure transmitter 31 can continue to detect, and if the pressure transmitter 31 fails, the flowmeter 41 operates to complement each other, thereby avoiding the problem that the leakage cannot be detected. Of course, with two positioning modules 53, and also with any positioning module 53 failing, the other positioning module 53 continues to operate to provide a specific location. Therefore, the double systems are utilized to detect and position the leakage, and the accuracy of detection and positioning is greatly improved.
The present application further includes a gas sensor mounted on the inner cylinder 17 and fixedly connected to the closing plate 18, the gas sensor is electrically connected to the acquisition module 52, an electrically controlled cylinder is fixedly connected to the closing plate 18, and an arc-shaped plugging plate is fixedly connected to an output shaft of the electrically controlled cylinder.
In this embodiment, the mounting portion is integrally closed by the operation band closing plate of the electric cylinder, that is, the flowmeter 41 and the pressure transmitter 31 are closed. If the flowmeter 41 or the pressure transmitter 31 is broken by a failure or by gas leakage or by other causes, the gas in the gas pipe 21 leaks to some extent from the connection with the flowmeter 41 or the pressure transmitter 31. Therefore, gas information is detected through the gas sensor, the gas information is sent to the acquisition module 52, the gas information is sent to the control terminal 51 through the acquisition module 52, the control terminal 51 judges whether leakage occurs or not based on the gas information, if leakage occurs, the control terminal 51 reminds an operator through a display, and a leakage position is found quickly by combining positioning information.
In the description herein, references to the description of the term "preferred embodiment," "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The urban gas pipeline leakage detection positioning device is characterized by comprising a first detection group and a second detection group, wherein the first detection group is arranged at the front end of a gas pipeline, and the second detection group is arranged at the tail end of the gas pipeline;
the first detection group and the second detection group are both electrically connected with an acquisition module, the acquisition module is electrically connected with a positioning module, and the acquisition module is electrically connected with a control terminal;
the first detection group and the second detection group both comprise a flowmeter and a pressure transmitter.
2. The city gas pipeline leakage detecting and positioning device according to claim 1, wherein the first detecting group of flow meters is paired to obtain first flow information of the front end in the gas pipeline, the first detecting group of pressure transmitters is paired to obtain first pressure information of the front end in the gas pipeline, and the collecting module is paired to obtain the first flow information and the first pressure information to send to the control terminal to generate the information a;
the flow meter of the second detection group is used for acquiring second flow information of the tail end in the gas pipeline, the pressure transmitter of the second detection group is used for acquiring second pressure information of the tail end in the gas pipeline, and the acquisition module is used for acquiring the second flow information and the second pressure information to send to the control terminal to generate information B;
and the control terminal acquires the information A and the information B to compare and judge whether the gas pipeline leaks.
3. The city gas pipeline leakage detecting and positioning device according to claim 2, wherein the positioning module sends positioning information to the acquisition module, and the acquisition module sends the positioning information to the control terminal, and the control terminal determines the source positions of the information A and the information B.
4. The urban gas pipeline leakage detection positioning device according to claim 3, further comprising a prompting module, wherein the prompting module is electrically connected with the control terminal, and when the control terminal compares the information A and the information B, if the difference value between the information A and the information B exceeds a preset range, the prompting module gives an alarm.
5. The city gas pipeline leakage detecting and positioning device of claim 4, comprising a protection installation group for installing the first detection group and the second detection group, wherein the protection installation group comprises at least two installation parts.
6. The city gas pipeline leakage detecting and positioning device according to claim 5, wherein the mounting part comprises an outer cylinder and an inner cylinder, a mounting cavity is formed between the outer cylinder and the inner cylinder, and the mounting cavity is used for mounting a flow meter and a pressure transmitter of a flow meter.
7. The city gas pipeline leakage detecting and positioning device according to claim 6, wherein a clamping part is vertically and slidably connected to the inner cylinder along the circumferential direction of the inner cylinder, and a clamping shaft rotatably connected to the outer cylinder is threadedly connected to the clamping part.
8. The city gas pipeline leakage detecting and positioning device as claimed in claim 7, wherein an elastic layer is fixedly connected to one side of the clamping portion away from the clamping shaft.
9. The city gas pipeline leakage detecting and positioning device according to claim 8, wherein closing plates are arranged on both sides of the installation cavity, and both sides of the closing plates are installed on the inner cylinder and the outer cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210252033.XA CN114593373A (en) | 2022-03-15 | 2022-03-15 | City gas pipeline leakage detection positioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210252033.XA CN114593373A (en) | 2022-03-15 | 2022-03-15 | City gas pipeline leakage detection positioner |
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| CN114593373A true CN114593373A (en) | 2022-06-07 |
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| CN202210252033.XA Pending CN114593373A (en) | 2022-03-15 | 2022-03-15 | City gas pipeline leakage detection positioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117831234A (en) * | 2024-03-04 | 2024-04-05 | 广州市粤佳气体有限公司 | Automatic alarm device for gas leakage monitoring cabinet |
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|---|---|---|---|---|
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| CN211475521U (en) * | 2019-12-04 | 2020-09-11 | 湖南佳创能源工程技术有限公司 | Gas pipeline leakage detection device |
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| CN111947039A (en) * | 2020-08-14 | 2020-11-17 | 深圳市前海三安盛科技有限公司 | Method and system for detecting pipeline leakage by utilizing gas flow |
| CN212298101U (en) * | 2020-05-14 | 2021-01-05 | 湖北景深安全技术有限公司 | VOCs leakage monitoring system |
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| CN214618318U (en) * | 2021-04-12 | 2021-11-05 | 中化设计院(天津)有限公司 | Gas pipeline safety connection device |
| CN214847066U (en) * | 2021-07-15 | 2021-11-23 | 程朝弦 | Gas leakage remote monitoring and fire alarm device |
| CN215868116U (en) * | 2020-12-28 | 2022-02-18 | 固安县朔程燃气有限公司 | Household gas pipeline detection alarm device |
-
2022
- 2022-03-15 CN CN202210252033.XA patent/CN114593373A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1159924A (en) * | 1980-10-14 | 1984-01-03 | Joseph D. Parker | Method and device for detecting and locating leaks in pipelines |
| CN211475521U (en) * | 2019-12-04 | 2020-09-11 | 湖南佳创能源工程技术有限公司 | Gas pipeline leakage detection device |
| CN212298101U (en) * | 2020-05-14 | 2021-01-05 | 湖北景深安全技术有限公司 | VOCs leakage monitoring system |
| CN111734960A (en) * | 2020-06-18 | 2020-10-02 | 兰州科翔自控技术有限公司 | Pipeline leakage monitoring alarm system and positioning method |
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| CN215868116U (en) * | 2020-12-28 | 2022-02-18 | 固安县朔程燃气有限公司 | Household gas pipeline detection alarm device |
| CN213902416U (en) * | 2021-01-14 | 2021-08-06 | 苏州捷尔普机电科技有限公司 | Industrial instrument mounting structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117831234A (en) * | 2024-03-04 | 2024-04-05 | 广州市粤佳气体有限公司 | Automatic alarm device for gas leakage monitoring cabinet |
| CN117831234B (en) * | 2024-03-04 | 2024-05-28 | 广州市粤佳气体有限公司 | Automatic alarm device for gas leakage monitoring cabinet |
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