Direct burial heat supply pipeline leakage monitoring device based on medium infrasonic wave change

Abstract

The utility model discloses a medium infrasonic wave change-based leakage monitoring device for a directly-buried heat supply pipeline, which comprises a pipeline body, and the upper side of the pipeline body is connected with a mounting plate; the connecting plate is movably mounted at the lower end of the pipeline body, a fixing structure is fixedly mounted on the outer side of the upper end of the connecting plate, and the fixing structure comprises a fixing plate, a movable block and a mounting rod; the signal processor is arranged on the middle side of the upper end of the mounting plate, a fixing block is fixedly mounted on the outer side of the lower end of the mounting plate, a limiting structure is connected to the outer side of the middle of the mounting plate, an infrared thermal imager is connected to the lower side of the limiting structure, and the limiting structure comprises a fixing rod and a connecting block. According to the direct burial heat supply pipeline leakage monitoring device based on the medium infrasonic wave change, the fixing structure is arranged, the infrasonic wave sensor can be installed, the limiting structure is arranged, the infrared thermal imager can be installed, and therefore the leakage position can be rapidly locked.

Description

Technical Field

[0001] This utility model relates to the field of buried heating pipeline technology, specifically a leakage monitoring device for buried heating pipelines based on changes in infrasound in the medium. Background Technology

[0002] Direct-buried heating pipelines refer to pipelines buried underground for heating. The heating pipelines, after being insulated, are directly buried in the soil. They have advantages such as reduced project costs, low operation and maintenance costs, and convenient and efficient construction. In the use of direct-buried heating pipelines, leakage monitoring devices are needed to monitor the pipelines. These devices mainly monitor pipeline leaks by detecting changes in infrasound waves of the medium.

[0003] Based on existing solutions and actual production and processing applications, current leak monitoring devices for directly buried heating pipelines based on changes in infrasound in the medium still have some problems, such as:

[0004] 1. When installing the leakage monitoring device, the leakage monitoring device is fixed to the outside of the direct-buried heating pipeline using expansion bolts. Since the installation using expansion bolts requires slotting on the outside of the heating pipeline, the service life of the heating pipeline is reduced.

[0005] 2. When monitoring leaks in directly buried heating pipelines, infrasound sensors are used for monitoring, but it is not convenient to pinpoint the leak location. Therefore, this utility model provides a leak monitoring device for directly buried heating pipelines based on changes in infrasound in the medium to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to provide a leakage monitoring device for directly buried heating pipelines based on changes in infrasound in the medium, in order to solve the problems mentioned in the background art, such as fixing the leakage monitoring device to the outside of the directly buried heating pipeline with expansion bolts, which requires slotting on the outside of the heating pipeline, thus reducing the service life of the heating pipeline, and making it inconvenient to locate the leakage when monitoring the leakage of the directly buried heating pipeline using an infrasound sensor.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a leakage monitoring device for a direct-buried heating pipeline based on the change of infrasound in the medium, comprising a pipeline body, an mounting plate connected to its upper side, and an infrasound sensor disposed in the middle of the interior of the mounting plate.

[0008] Also includes:

[0009] A connecting plate is movably installed at the lower end of the pipe body. A fixing structure is fixedly installed on the outer side of the upper end of the connecting plate. The fixing structure includes a fixing plate, a movable block, and an installation rod. The fixing plate is installed on the outer side of the upper end of the connecting plate, and the movable block is connected to the outer side of the fixing plate. The upper end of the movable block is connected to the installation rod.

[0010] A signal processor is disposed on the upper middle side of a mounting plate, and a fixing block is fixedly installed on the lower outer side of the mounting plate. A limiting structure is connected to the middle outer side of the mounting plate, and an infrared thermal imager is connected to the lower side of the limiting structure. The limiting structure includes a fixing rod and a connecting block, and the connecting block is installed on the middle outer side of the mounting plate, and the fixing rod is connected to the inner side of the connecting block.

[0011] Preferably, a positioning rod is also fixedly connected to the upper middle side of the connecting plate, and the positioning rod and the mounting plate are engaged.

[0012] The inner side of the connecting plate is provided with a connecting groove, and a moving rod is threadedly connected to the middle side of the connecting groove, and a pressing plate is movably connected to the upper side of the moving rod.

[0013] Preferably, the moving rod is connected to the extrusion plate via a bearing, and the extrusion plate is in close contact with the pipe body.

[0014] Preferably, the extrusion plate and the connecting groove are slidably connected, and the vertical cross-sectional shape of the extrusion plate is an arc-shaped structure.

[0015] Preferably, the connecting block and the mounting plate are connected by a snap-fit ​​connection, and the connecting block and the infrared thermal imager are connected by a bonding connection.

[0016] Preferably, the connecting block and the fixing rod are connected by a thread and serve to limit the position of the infrared thermal imager.

[0017] Preferably, the fixing plate and the connecting plate are fixedly connected by welding, and the fixing plates are symmetrically distributed about the center line of the pipe body.

[0018] Preferably, the fixed plate and the movable block are rotatably connected, and the movable block and the mounting rod are threadedly connected.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the leakage monitoring device for direct-buried heating pipelines based on the change of infrasound in the medium is equipped with a fixed structure that can install the infrasound sensor, and is equipped with a limiting structure that can install the infrared thermal imager, thereby quickly locking the leakage location.

[0020] 1. By placing the connecting plate on the lower side of the pipe body and installing the mounting plate on the upper side of the pipe body, the mounting plate is locked onto the outside of the positioning rod. Rotating the movable block causes it to rotate on the outside of the fixed plate, thus rotating the movable block to the upper side of the fixed block. Rotating the mounting rod causes it to be threaded in the middle of the movable block, thus moving the mounting rod downwards and threading it in the middle of the fixed block, which facilitates fixing the mounting plate and thus facilitates the installation of the infrasound sensor.

[0021] 2. By rotating the moving rod, the moving rod is threaded to the middle of the lower end of the connecting plate, so that the extrusion plate connected to the moving rod through the bearing moves upward inside the connecting groove, thereby making the extrusion plate contact the lower side of the pipe body and extruding the pipe body, which can further fix the mounting plate and the connecting plate.

[0022] 3. By installing the infrared thermal imager on the outside of the mounting plate and then installing the connecting block on the outside of the mounting plate, rotating the fixing rod will make the fixing rod threaded on the inside of the connecting block, thereby moving the fixing rod downwards and making the fixing rod threaded on the inside of the mounting plate, which facilitates the installation of the infrared thermal imager. The infrared thermal imager can quickly locate the leak by capturing the thermal anomaly area formed by the temperature difference between the leaking medium and the environment. Attached Figure Description

[0023] Figure 1 This is a schematic cross-sectional view of the connection between the pipe body and the mounting plate of this utility model.

[0024] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 3 This is a schematic cross-sectional view of the connection between the mounting plate and the infrasound sensor of this utility model.

[0026] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B;

[0027] Figure 5 This utility model Figure 3 Enlarged structural diagram at point C.

[0028] In the diagram: 1. Pipe body; 2. Mounting plate; 3. Infrared sensor; 4. Signal processor; 5. Infrared thermal imager; 6. Fixing rod; 7. Connecting plate; 8. Connecting groove; 9. Moving rod; 10. Extrusion plate; 11. Connecting block; 12. Fixing block; 13. Fixing plate; 14. Moving block; 15. Mounting rod; 16. Positioning rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-5 This utility model provides a technical solution: a leakage monitoring device for directly buried heating pipelines based on infrasound changes in the medium, comprising: a pipeline body 1, a mounting plate 2, an infrasound sensor 3, a signal processor 4, an infrared thermal imager 5, a fixing rod 6, a connecting plate 7, a connecting groove 8, a moving rod 9, a pressing plate 10, a connecting block 11, a fixing block 12, a fixing plate 13, a movable block 14, a mounting rod 15, and a positioning rod 16. In operation, the specific details are as follows... Figure 1 , Figure 3 and Figure 5 As shown, the mounting plate 2 is connected to the upper side of the pipe body 1 by a locking plate. A fixing block 12 is fixedly installed on the outer side of the lower end of the mounting plate 2. A connecting plate 7 is connected to the lower side of the pipe body 1 by a locking plate. A fixing plate 13 is fixedly installed on the outer side of the upper end of the connecting plate 7. The connecting plate 7 is manually locked onto the outer side of the lower end of the pipe body 1, and then the mounting plate 2 is manually locked onto the outer side of the upper end of the pipe body 1. Under the installation action between the mounting plate 2 and the pipe body 1, the mounting plate 2 is locked onto the outer side of the upper end of the positioning rod 16. Then, the movable block 14 is manually pushed, so that under the action of the thrust, the movable block 14 is fixed onto the fixing plate 13. The outer side is rotated, so that the movable block 14 rotates to the upper side of the fixed block 12 under the rotation action between the movable block 14 and the fixed plate 13. Then the mounting rod 15 is tightened, so that the mounting rod 15 is threaded in the middle of the movable block 14 under the tightening action. Then, the mounting rod 15 moves downward under the thread action between the movable block 14 and the mounting rod 15. Then, the mounting rod 15 is threaded on the upper side of the fixed block 12 under the downward movement action, which facilitates the installation of the mounting plate 2, and thus facilitates the limiting of the infrasound sensor 3 and the signal processor 4.

[0031] Specific examples Figure 1 , Figure 3 and Figure 4As shown, a connecting groove 8 is opened in the middle of the connecting plate 7, a moving rod 9 is connected in the middle of the connecting groove 8, and a pressing plate 10 is movably installed on the upper side of the moving rod 9. The moving rod 9 installed in the middle of the lower end of the connecting plate 7 is manually rotated, so that the moving rod 9 rotates under the action of rotation, so that the moving rod 9 is threaded in the middle of the connecting plate 7 under the action of rotation, and then the moving rod 9 moves upward inside the connecting groove 8 under the action of thread action between the moving rod 9 and the connecting plate 7, so that the pressing plate 10 connected to the moving rod 9 through the bearing moves upward under the action of upward movement of the moving rod 9, so that the pressing plate 10 presses the pipe body 1 under the action of upward movement of the pressing plate 10, which facilitates further fixing of the mounting plate 2 and the connecting plate 7;

[0032] Specific examples Figure 1 and Figure 2 As shown, an infrared thermal imager 5 is installed on the outer side of the upper end of the mounting plate 2. A connecting block 11 is connected to the upper side of the infrared thermal imager 5. A fixing rod 6 is movably connected to the inner side of the upper end of the connecting block 11. The infrared thermal imager 5 is manually engaged and installed on the outer side of the middle of the mounting plate 2. Then, the connecting block 11 is manually engaged and installed on the outer side of the mounting plate 2. Under the engaging action between the connecting block 11 and the mounting plate 2, the connecting block 11 contacts the upper side of the infrared thermal imager 5. Tightening the fixing rod 6 causes the fixing rod 6 to be threaded onto the inner side of the connecting block 11. Thus, under the threaded action between the fixing rod 6 and the connecting block 11, the fixing rod 6 moves downwards. Furthermore, the downward movement of the fixing rod 6... The fixing rod 6 is threaded inside the mounting plate 2 to facilitate the limiting of the infrared thermal imager 5. The infrasound sensor 3 installed in the middle of the mounting plate 2 can capture the low-frequency sound wave signal generated by the fluid jet when leaking. The signal processor 4 connected to the middle of the upper end of the mounting plate 2 can filter, amplify and extract features of the collected infrasound signal to eliminate environmental noise interference. The infrared thermal imager 5 set on the outside of the mounting plate 2 can capture the thermal anomaly area formed by the temperature difference between the leaking medium and the environment, and can quickly locate the leak, thereby improving the efficiency of the device. The mounting plate 2 and the connecting plate 7 are set at a distance of 800-1200 meters on the outside of the pipeline body 1.

[0033] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A leakage monitoring device for a direct-buried heating pipeline based on the change of infrasound in the medium, comprising a pipeline body (1), an mounting plate (2) connected to its upper side, and an infrasound sensor (3) disposed in the middle of the interior of the mounting plate (2); Its features are, Also includes: A connecting plate (7) is movably installed at the lower end of the pipe body (1). A fixing structure is fixedly installed on the outer side of the upper end of the connecting plate (7). The fixing structure includes a fixing plate (13), a movable block (14), and an installation rod (15). The fixing plate (13) is installed on the outer side of the upper end of the connecting plate (7). The outer side of the fixing plate (13) is connected to the movable block (14), and the upper end of the movable block (14) is connected to the installation rod (15). A signal processor (4) is disposed on the upper middle side of the mounting plate (2), and a fixing block (12) is fixedly installed on the lower outer side of the mounting plate (2). A limiting structure is connected to the middle outer side of the mounting plate (2), and an infrared thermal imager (5) is connected to the lower side of the limiting structure. The limiting structure includes a fixing rod (6) and a connecting block (11). The connecting block (11) is installed on the middle outer side of the mounting plate (2), and the fixing rod (6) is connected to the inner side of the connecting block (11).

2. The leakage monitoring device for directly buried heating pipelines based on infrasound changes in the medium according to claim 1, characterized in that: A positioning rod (16) is also fixedly connected to the upper middle side of the connecting plate (7), and the positioning rod (16) and the mounting plate (2) are engaged. The inner side of the connecting plate (7) is provided with a connecting groove (8), and a moving rod (9) is threadedly connected to the middle side of the connecting groove (8), and a pressing plate (10) is movably connected to the upper side of the moving rod (9).

3. The leakage monitoring device for directly buried heating pipelines based on infrasound changes in the medium according to claim 2, characterized in that: The moving rod (9) is connected to the extrusion plate (10) via a bearing, and the extrusion plate (10) is in close contact with the pipe body (1).

4. The leakage monitoring device for directly buried heating pipelines based on infrasound changes in the medium, as described in claim 3, is characterized in that: The extrusion plate (10) and the connecting groove (8) are slidably connected, and the vertical cross-sectional shape of the extrusion plate (10) is an arc-shaped structure.

5. The leakage monitoring device for directly buried heating pipelines based on infrasound changes in the medium according to claim 1, characterized in that: The connecting block (11) is snap-fitted to the mounting plate (2), and the connecting block (11) is fitted to the infrared thermal imager (5).

6. The leakage monitoring device for a directly buried heating pipeline based on the change of infrasound in the medium according to claim 5, characterized in that: The connecting block (11) and the fixing rod (6) are connected by a thread and serve to limit the position of the infrared thermal imager (5).

7. The leakage monitoring device for a directly buried heating pipeline based on the change of infrasound in the medium according to claim 1, characterized in that: The fixing plate (13) and the connecting plate (7) are fixedly connected by welding, and the fixing plate (13) is symmetrically distributed about the center line of the pipe body (1).

8. The leakage monitoring device for a directly buried heating pipeline based on the change of infrasound in the medium according to claim 7, characterized in that: The fixed plate (13) and the movable block (14) are rotatably connected, and the movable block (14) and the mounting rod (15) are threadedly connected.

Images