Leakage detection device

Abstract

The utility model relates to the technical field of leakage point detection, in particular to a leakage detection device, which comprises a length-adjustable support structure, a nozzle and a camera, the nozzle and the camera are mounted on the support structure, the nozzle is connected with a water pipe, and the water pipe is arranged on the outer side of the support structure so as to realize real-time adjustment of the length of the support structure. When the length of the supporting structure needs to be adjusted, the length of the supporting structure can be directly adjusted in real time, the detection device does not need to be stopped, the water pipe does not need to be removed, the process is simple, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of leakage point detection, in particular to a leakage detection device. Background Art

[0002] The corrosion of gathering and transportation pipelines and on-site equipment has always been a major problem that has plagued the production of various oil and gas fields. Corrosion not only causes problems such as running, bubbling, dripping, and leaking, but also affects the safe production of oil and gas fields. It is a key link that restricts the safe and efficient development of oil and gas fields. In response to the above problems, management measures such as daily leak detection system and safety hazard rewards are used to promote the effective implementation of leak detection work and extend the service life of pipelines and equipment; some high-sulfur gas fields are high-risk places, and maintaining a safe distance during leak detection is also beneficial to protecting the safety of on-site inspection personnel in order to effectively carry out pipeline leak detection. The general leak detection method is to use a leak detection pot to directly spray the leak detection liquid on the part to be leaked, and to perform leak detection by observing the state of the leak detection liquid.

[0003] However, there are still some problems in the application of leak detection pots, that is, it is difficult to carry out leak detection work and inconvenient to observe the leak detection situation in narrow places and dead corners inside or outside the pipe network and equipment, and the dark ambient light is not conducive to the implementation of leak detection work, and the working status and state are not convenient to observe, leaving safety risks and hidden dangers. At the same time, when the equipment is in a high position, it is also inconvenient to detect and observe leaks, and the parameters on the equipment nameplate are not easy to observe and read directly; it is difficult to retain close-up on-site data on the real-time status of the pipe network and equipment.

[0004] Chinese patent document CN207095788U discloses a natural gas station high-altitude leakage detection device, including a detection part, a support assembly, a spray pot and an image recorder, the detection part including a detection part body, a nozzle and a camera, the detection part body has an inner cavity; the support assembly is vertically arranged, and the detection part body is arranged at the upper end of the support assembly; the spray pot is connected and communicated with the nozzle through a hose; the image recorder is connected with the camera through an electric wire; the support assembly is assembled from multiple round tubes through multiple first connecting members, and two adjacent round tubes are connected through a first connecting member; the other end of the second connecting member is connected to the detection part body through a bendable and shaped stainless steel corrugated pipe; the hose and the electric wire are arranged in the inner cavity, the stainless steel corrugated pipe, the second connecting member, the multiple round tubes and the multiple first connecting members.

[0005] In conventional operations in this field, in order to prevent the hose connected to the nozzle and the wires connected to the camera from colliding with other structures during use and causing wear and tear that reduces their service life, or getting hooked with other structures and becoming unusable, as described in the above-mentioned utility model patent, the hose and wires are generally arranged inside the support assembly to prevent them from being worn and hooked.

[0006] However, since the above utility model patents are provided with the hose and wires in the inner cavity of the detection part, the stainless steel bellows and the support assembly, when the height of the support assembly is adjusted by controlling the number of spliced ​​round tubes, it is necessary to stop using the detection device, first remove the hose and wires from the inner cavity of the detection part, the stainless steel bellows and the support assembly, confirm the number of round tubes, and then connect the hose and wires to use the detection device. The above device has a complicated process when adjusting the height of the support assembly, which makes the operation inconvenient. Utility Model Content

[0007] The utility model aims to provide a leakage detection device to solve the problem in the prior art that the height of the support assembly of the leakage point detection device is adjusted due to the complicated process and thus inconvenient operation.

[0008] In order to solve the above problems, the technical solution of the leakage detection device of the utility model is:

[0009] A leak detection device comprises a support structure with adjustable length, a nozzle and a camera mounted on the support structure, wherein the nozzle is connected to a water pipe, and the water pipe is arranged outside the support structure to facilitate real-time adjustment of the length of the support structure.

[0010] Furthermore, the support structure includes a telescopic rod, and the telescopic rod is used to adjust the length of the support structure.

[0011] Furthermore, the support structure also includes a snake tube connected to one end of the telescopic rod, and the nozzle and the camera are installed on the end of the snake tube away from the telescopic rod, so that the shape of the snake tube can be adjusted to achieve adjustment of the angles of the nozzle and the camera.

[0012] Furthermore, the support structure also includes a mounting seat, which is mounted on an end of the snake tube away from the telescopic rod, and the nozzle and the camera are mounted on the mounting seat.

[0013] Furthermore, mounting holes are provided on both sides of the mounting seat away from the end of the coil for mounting the camera and the nozzle, and a limiting protrusion is provided between the mounting holes on both sides of the mounting seat in the direction toward the leak detection part to limit the distance between the camera and the nozzle and the detected position.

[0014] Furthermore, the mounting seat is hinged on the coiled tube via a damping hinge.

[0015] Furthermore, the camera is connected with a connecting wire, and the connecting wire is arranged outside the supporting structure.

[0016] Furthermore, the leak detection device also includes a spray pot connected to the water pipe.

[0017] Furthermore, the leakage detection device also includes a Wifi transmitter connected to the connecting line.

[0018] Beneficial effects: The utility model is an improvement on the prior art. The leak detection device includes a support structure with adjustable length. The support structure sends the nozzle and the camera to the leak detection location. The nozzle is connected to a water pipe, which is arranged on the outside of the support structure. When the length of the support structure needs to be adjusted, the length of the support structure can be adjusted directly and in real time. There is no need to stop using the detection device or remove the water pipe. The process is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the leak detection device of Example 1 of the utility model;

[0020] In the picture: 1. Telescopic rod; 2. Spray pot; 3. Wifi transmitter; 4. Water pipe; 5. Connecting wire; 6. Coil; 7. Camera; 8. Clamp; 9. Nozzle. DETAILED DESCRIPTION

[0021] The features and performance of the utility model are described in further detail below.

[0022] As cited in the prior art in the background technology, the height of the support assembly is adjusted by controlling the number of spliced ​​round tubes. However, since the hose and wires are arranged in the inner cavity of the detection part body, the stainless steel corrugation and the support assembly, when adjusting the number of round tubes, it is necessary to stop using the detection device, first remove the hose and wires from the inner cavity of the detection part body, the stainless steel corrugation and the support assembly, and then connect the hose and wires to use the detection device after confirming the number of round tubes. The above device has a complicated process when adjusting the height of the support assembly, which makes the operation inconvenient.

[0023] Therefore, the utility model provides a leak detection device, including a support structure with adjustable length, which is used to support a nozzle and a camera and send them to a leak detection part; the nozzle is connected to a water pipe and sprays a leak detection liquid to the leak detection part; the camera is used to photograph the leak detection part and the leak detection situation. When the support structure sends the nozzle and the camera to the leak detection part, the leak detection part is first viewed in real time through the camera in high definition, and then the leak detection liquid is sprayed to the leak detection part through the nozzle, and the leak detection situation is observed through the camera device. At the same time, the water pipe is arranged on the outside of the support structure. When the length of the support structure needs to be adjusted according to the distance of the leak detection part during use, it can be adjusted directly and in real time without stopping the use of the detection device or removing the water pipe. The process is simple and easy to operate.

[0024] Embodiment 1 of the leakage detection device of the utility model:

[0025] like Figure 1As shown, the leak detection device of this embodiment 1 includes a support structure with adjustable length, a nozzle 9 and a camera 7 installed on the support structure, the nozzle 9 is connected to a water pipe 4, and the water pipe 4 is arranged on the outside of the support structure. The camera 7 captures the image information of the leak detection location and the leak detection situation; the camera 7 is a miniature camera with a resolution of 1920*1080, which is equipped with a wireless Wifi explosion-proof endoscope with light, has the characteristics of miniature, can enter a small space and has the function of high-definition shooting, which is convenient for high-definition real-time viewing of the leak detection situation.

[0026] When the leak detection device is used, the length of the support structure is adjusted to adapt to the distance of the leak detection part, and then the nozzle 9 and the camera 7 are sent to the leak detection part, and the length of the support structure is adjusted in real time according to the position of the leak detection part to control the position of the nozzle 9 and the camera 7 accurately; the leak detection part is viewed in real time with high definition using a wireless Wifi explosion-proof endoscope with light; the leak detection liquid is evenly sprayed on the leak detection part through the nozzle 9, and then the leakage of the leak detection part is checked, and the real-time image information of the leak detection part sent by the camera 7 is observed through the mobile phone to observe the leakage detection of the leak detection part. The camera 7 can also perform real-time video and recording, and transmit the real-time video and recorded video to the mobile phone for online observation or recorded video for multiple people to watch offline.

[0027] In order to achieve real-time adjustment of the length of the support structure, the support structure can be composed of multiple round tubes, multiple first connectors and one second connector. The water pipe 4 is arranged outside the round tube, the first connector and the second connector. The multiple round tubes are arranged at intervals. Two adjacent round tubes are connected by a first connector. One end of the second connector is connected to the upper end of the round tube at the top, and the other end is connected to the nozzle 9 and the camera 7. According to the distance between the operator and the leak detection part, the number of round tubes to be spliced ​​is selected to adjust the length of the support structure.

[0028] In order to more conveniently adjust the length of the support structure in real time and accurately according to the required distance, in this embodiment, the support structure includes a telescopic rod 1, and the length of the telescopic rod 1 can be adjusted at any time, arbitrarily and accurately according to the required distance to more conveniently adapt to leak detection parts at different distances.

[0029] Embodiment 2 of the leakage detection device of the present utility model:

[0030] Based on the technical concept of the present invention described above, or based on the specific embodiments of the present invention described above, another embodiment is provided below.

[0031] The nozzle 9 and the camera 7 can be directly mounted on the telescopic rod 1, and the telescopic rod 1 directly delivers the nozzle 9 and the camera 7 to the leak detection location. However, when the leak detection location is at an angle that the telescopic rod 1 cannot reach, the telescopic rod 1 cannot accurately deliver the nozzle 9 and the camera 7 to the leak detection location. Figure 1 As shown, the support structure also includes a coiled tube 6 connected to one end of the telescopic rod 1, and the nozzle 9 and the camera 7 are installed on the end of the coiled tube 6 away from the telescopic rod 1. When in use, the coiled tube 6 can automatically adjust the curvature as needed to make the nozzle 9 and the camera 7 reach the desired angle and position, which is easy to operate. In other embodiments, the coiled tube 6 can also be a flexible tube or a stainless steel corrugated tube. When in use, the flexible tube or the stainless steel corrugated tube can also adjust the curvature as needed to make the nozzle 9 and the camera 7 reach the desired angle and position.

[0032] Embodiment 3 of the leakage detection device of the present utility model:

[0033] Based on the technical concept of the present invention described above, or based on the specific embodiments of the present invention described above, another embodiment is provided below.

[0034] The nozzle 9 and the camera 7 can be directly connected to the coiled tube 6 by means of tape, but the tape needs to be repeatedly adhered and removed when the nozzle 9 and the camera 7 are used and not used, which is inconvenient to operate. Therefore, in this embodiment, preferably, the support structure also includes a mounting seat, which is mounted on an end of the coiled tube 6 away from the telescopic rod 1, and the nozzle 9 and the camera 7 are directly fixed on the mounting seat, which is convenient to operate.

[0035] Embodiment 4 of the leakage detection device of the present utility model:

[0036] Based on the technical concept of the present invention described above, or based on the specific embodiments of the present invention described above, another embodiment is provided below.

[0037] In order to prevent the nozzle 9 and the camera 7 from colliding with the leak detection part and thus damaging the nozzle 9 and the camera 7, in this embodiment, mounting holes are provided on both sides of the mounting seat away from the end of the coil 6 for mounting the camera 7 and the nozzle 9, and a limiting convex portion is provided between the mounting holes on both sides of the mounting seat in the direction of the leak detection part to limit the distance between the camera 7 and the nozzle 9 and the detected position. When in use, the distance between the nozzle 9 and the camera 7 and the leak detection part is limited by the limiting convex portion to prevent the nozzle 9 and the camera 7 from colliding with the leak detection part and thus damaging the nozzle 9 and the camera 7.

[0038] Embodiment 5 of the leakage detection device of the present utility model:

[0039] Based on the technical concept of the present invention described above, or based on the specific embodiments of the present invention described above, another embodiment is provided below.

[0040] The mounting seat can be fixedly mounted on the end of the coiled tube 6 away from the telescopic rod 1 by bolts, and the nozzle 9 and the camera 7 are fixedly mounted on the mounting seat. When in use, when encountering a leak detection part with a complex shape, the direction of the nozzle 9 and the camera 7 cannot be adjusted, and thus accurate leak detection cannot be performed. Therefore, in this embodiment, preferably, the mounting seat is hinged to the end of the coiled tube 6 away from the telescopic rod 1 by a damping hinge, and the nozzle 9 and the camera 7 are mounted on the mounting seat. The mounting seat adjusts the direction of the nozzle 9 and the camera 7 by the damping hinge to adapt to leak detection parts in different directions, so as to facilitate accurate leak detection of leak detection parts with complex shapes.

[0041] like Figure 1 As shown, the mounting seat is a clamp 8, one end of which is hinged to the coil 6 through a damping hinge, and mounting holes are provided on both sides of the clamp 8 away from the end of the coil 6, and the camera 7 and the nozzle 9 are installed in the mounting holes facing the leak detection part; a limiting convex part is provided between the mounting holes on both sides of the clamp 8. When in use, the clamp 8 is guided by a guide wire, and the clamp 8 adjusts and limits the direction of the clamp 8 through the damping hinge, thereby limiting the direction of the nozzle 9 and the camera 7; at the same time, the distance between the nozzle 9 and the camera 7 and the leak detection part is limited by the limiting convex part, so as to facilitate more accurate and effective leak detection.

[0042] Embodiment 6 of the leakage detection device of the present utility model:

[0043] Based on the technical concept of the present invention described above, or based on the specific embodiments of the present invention described above, another embodiment is provided below.

[0044] The camera can transmit signals via wireless Wifi. In this case, a battery is installed inside the camera to power the camera for shooting and transmitting data. When in use, the camera is controlled by wireless Wifi to shoot and transmit image information of the leak detection location and leak detection situation. However, the camera is large in size, not suitable for use in a narrow space, and has high cost. Therefore, in this embodiment, preferably, the camera 7 is connected to a connecting line 5, and the connecting line 5 is arranged on the outside of the telescopic rod 1, the coil 6 and the clamp 8; at the same time, the camera 7 is connected to a Wifi transmitter 3 via the connecting line 5, and the Wifi transmitter 3 has a battery inside. The Wifi signal is transmitted by the battery power supply and connected to the software for use, and long-distance signal transmission is realized at the same time. The camera 7 is small in size, easy to enter a narrow space, and has low cost.

[0045] Embodiment 7 of the leakage detection device of the present utility model:

[0046] Based on the technical concept of the present invention described above, or based on the specific embodiments of the present invention described above, another embodiment is provided below.

[0047] In this embodiment, the leak detection device also includes a spray pot 2 connected to the water pipe 4, which is used to hold a leak detection liquid. The spray pot 2 uses a dual-mode spray pot to hold the leak detection liquid. The dual-mode spray pot can be placed on the back or across the body using a strap for easy operation and use; the dual-mode spray pot can use two types of automatic mode spray pots and manual mode spray pots. The automatic mode spray pot automatically sprays liquid through a switch, and the manual mode spray pot needs to be pressed manually to spray the leak detection liquid on the pipeline and the sealing surface of the equipment for leak detection at a long distance. In other embodiments, a spray pot may not be provided, and a pressure tank filled with a leak detection liquid is used. The pressure tank is connected to the water pipe 4, and a valve is provided on the water pipe 4. When in use, open the valve, and the leak detection liquid in the pressure tank is sprayed out from the nozzle 9 through the water pipe 4 for leak detection.

[0048] When it is necessary to check the weld between flanges for leaks, such as Figure 1 As shown, the dual-mode spray pot is connected to the nozzle 9 through the water pipe 4, the Wifi transmitter 3 is equipped with a battery, and the explosion-proof mobile phone software is connected to control the camera 7. The Wifi transmitter 3 and the camera 7 are connected through the connecting line 5, and the clamp 8 fixes the nozzle 9 and the camera 7. After entering the site, the length of the telescopic rod 1 can be adjusted according to the actual situation, and then the curvature can be automatically adjusted according to the coil 6 to make the nozzle 9 and the camera 7 reach the required direction and leak detection position, and the position of the clamp 8 is adjusted to make it stuck in the leak detection part of the weld between the flanges. After starting the camera software, the weld between the flanges is observed through the camera 7, and then the leak detection liquid is sprayed on the weld between the flanges through the dual-mode spray pot. The weld between the flanges and the size of the bubbles are observed through the camera 7 to judge whether there are problems such as running, bubbling, dripping, and leaking on the site, determine the location of the leak point, and reduce the safety risks and hidden dangers caused by gas leakage.

[0049] The leak detection device is convenient for observing and carrying out leak detection work in a small space, and is convenient for observing parts that are usually inconvenient to observe (nameplates or inside equipment), reducing the safety risks and hidden dangers caused by invisible gas leakage in equipment and pipelines, and solving the problem of inconvenient leak detection and observation; at the same time, the video playback function can improve the accuracy and reliability of hidden danger judgment, and can take photos and record videos while detecting leaks, which is convenient for subsequent searches, and is convenient for multiple people to observe and playback the on-site situation, thereby improving the work efficiency of leak detection operations and reducing the labor intensity of workers.

[0050] Through the above description of the specific embodiment of the leak detection device of the utility model, it can be seen that the leak detection device of the utility model includes a support structure with adjustable length, which is used to support the nozzle and the camera and send them to the leak detection part; the nozzle is connected to a water pipe and sprays the leak detection liquid to the leak detection part; the camera is used to photograph the leak detection part and the leak detection situation. When the support structure sends the nozzle and the camera to the leak detection part, the leak detection part is first viewed in real time through the high-definition camera, and then the leak detection liquid is sprayed to the leak detection part through the nozzle, and the leak detection situation is observed through the camera. At the same time, the water pipe is arranged on the outside of the support structure. When the length of the support structure needs to be adjusted according to the distance of the leak detection part during use, it can be adjusted directly and in real time without stopping the use of the detection device or removing the water pipe. The process is simple and easy to operate.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A leak detection device, comprising a support structure with adjustable length, a nozzle and a camera mounted on the support structure, wherein the nozzle is connected to a water pipe, characterized in that: The water pipe is arranged outside the supporting structure to facilitate real-time adjustment of the length of the supporting structure.

2. The leak detection device according to claim 1, characterized in that: The supporting structure comprises a telescopic rod, and the telescopic rod is used to adjust the length of the supporting structure.

3. The leak detection device according to claim 2, characterized in that: The support structure also includes a snake tube connected to one end of the telescopic rod, and the nozzle and the camera are installed on the end of the snake tube away from the telescopic rod, so that the shape of the snake tube can be adjusted to adjust the angles of the nozzle and the camera.

4. The leak detection device according to claim 3, characterized in that: The support structure also includes a mounting seat, which is mounted on an end of the snake tube away from the telescopic rod, and the nozzle and the camera are mounted on the mounting seat.

5. The leak detection device according to claim 4, characterized in that: The mounting seat is provided with mounting holes on both sides of one end away from the coil for mounting the camera and the nozzle, and a limiting protrusion is provided between the mounting holes on both sides of the mounting seat in the direction toward the leak detection position to limit the distance between the camera and the nozzle and the detected position.

6. The leak detection device according to claim 4, characterized in that: The mounting seat is hinged on the coiled tube via a damping hinge.

7. The leak detection device according to any one of claims 1 to 6, characterized in that: The camera is connected with a connecting line, and the connecting line is arranged outside the supporting structure.

8. The leak detection device according to any one of claims 1 to 6, characterized in that: The leak detection device also includes a spray pot connected to the water pipe.

9. The leak detection device according to claim 7, characterized in that: The leak detection device also includes a Wifi transmitter connected to the connecting line.

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