Self-checking device of buried storage tank leak detection structure

Abstract

The utility model discloses a self-checking device for a leakage detection structure of a buried storage tank, which belongs to the technical field of buried storage tanks, and comprises a storage tank main body, the top of the storage tank main body is fixedly communicated with an inlet and outlet pipeline, and by arranging a leakage detection assembly, ultrasonic signals generated by leakage at the inlet and outlet pipeline can be caught acutely, and the leakage detection structure of the buried storage tank can be detected. When the storage tank main body leaks, the ultrasonic leak detector can quickly receive and analyze the signals and accurately judge the leakage position and degree, so that a worker can timely find and process leakage hidden dangers, accidents are prevented from being expanded, and safe operation of the storage tank main body is guaranteed; the self-checking assembly is matched with the ultrasonic leak detector through the ultrasonic signal generator, sends analog signals regularly or when necessary, can find whether the leak detector has faults or not in time, avoids the situation that the leakage of the storage tank cannot be detected due to the failure of the leak detector, and guarantees the reliability and effectiveness of the leakage detection of the buried storage tank.

Description

Technical Field

[0001] This utility model relates to the field of underground storage tank technology, and in particular to a self-inspection device for an underground storage tank leak detection structure. Background Technology

[0002] In the current industrial field, underground storage tanks are widely used in industries such as petroleum and chemical due to their advantages such as saving space, high safety and low environmental impact, for storing various liquid or gaseous media. However, once a storage tank leaks, it will not only cause media waste and economic losses, but may also cause serious accidents such as fire, explosion or environmental pollution. Therefore, the reliability of the storage tank leak detection structure is crucial.

[0003] Currently, ultrasonic leak detectors are commonly used in the market to detect leaks in storage tanks. With their advantages of high sensitivity and rapid response, they can effectively detect leaks in storage tanks. However, in actual use, ultrasonic leak detectors lack effective self-testing methods, making it difficult to ensure that their performance is always in normal condition. If the instrument malfunctions, it may cause leak detection failure, thus failing to detect storage tank leaks in time and causing irreparable losses.

[0004] To address this, a self-inspection device for leak detection structures of underground storage tanks is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a self-testing device for the leak detection structure of underground storage tanks, which can solve the problem that existing ultrasonic leak detectors, due to the lack of effective self-testing methods, cannot guarantee that their performance is always in a normal state. If the instrument malfunctions, it may lead to the failure of leak detection, thus failing to detect the leakage problem of the storage tank in time and causing irreparable losses.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-inspection device for a leak detection structure of an underground storage tank, comprising a storage tank body, an inlet and outlet pipe fixedly connected to the top of the storage tank body, a leak detection component on the surface of the inlet and outlet pipe, the leak detection component comprising an ultrasonic leak detector, and a self-inspection component disposed directly below the ultrasonic leak detector;

[0007] The self-testing component includes a support block, a first electric push rod is fixedly connected to the right side of the support block, an L-shaped plate is provided on the left side of the support block, and an installation square hole is opened inside the bottom end of the L-shaped plate. An ultrasonic signal generator is fixedly connected inside the installation square hole, and the ultrasonic signal generator is used in conjunction with an ultrasonic leak detector.

[0008] Preferably, a fixing collar is fixedly sleeved on the surface of the inlet and outlet pipes, and a mounting bracket is fixedly connected to the surface of the fixing collar, with the first electric push rod fixedly connected to the left side of the mounting bracket.

[0009] Preferably, a second electric push rod is fixedly connected to the top of the inner wall of the mounting bracket, and the top of the ultrasonic leak detector is fixedly connected to the telescopic end of the second electric push rod.

[0010] Preferably, a cleaning ring is fixedly connected inside the mounting bracket and is used in conjunction with the probe of the ultrasonic leak detector. A cleaning brush is provided inside the cleaning ring.

[0011] Preferably, the support block has a groove on its left side, a vertical threaded rod is rotatably connected inside the groove, a threaded sleeve is threadedly connected to the surface of the vertical threaded rod, and the left side of the threaded sleeve is fixedly connected to the right side of the L-shaped plate.

[0012] Preferably, a limiting rod is fixedly connected inside the groove, and the threaded sleeve is slidably connected to the surface of the limiting rod.

[0013] Preferably, a protective shell is fixedly connected to the top of the main body of the storage tank, the leak detection component and the self-test component are both located inside the protective shell, and the inlet and outlet pipes pass through the protective shell and are fixedly connected to it.

[0014] Preferably, a servo control motor is fixedly connected to the top of the support block, and the output end of the servo control motor is fixedly connected to the top of the vertical threaded rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application sets up a self-testing component, which works with an ultrasonic leak detector through an ultrasonic signal generator to send analog signals periodically or when necessary. This can detect whether the leak detector is faulty in a timely manner, and avoid the failure to detect tank leaks due to leak detector failure, thus ensuring the reliability and effectiveness of leak detection for underground storage tanks.

[0017] 2. This application incorporates a leak detection component. The ultrasonic leak detector utilizes the characteristics of ultrasonic waves to sensitively capture ultrasonic signals generated by leaks at the inlet and outlet pipes. When a leak occurs in the main body of the storage tank, the flow of gas or liquid at the leak point will generate turbulence, which in turn will trigger ultrasonic vibrations. The ultrasonic leak detector can quickly receive and analyze these signals, accurately determine the location and extent of the leak, and enable personnel to promptly detect and handle potential leaks, prevent the accident from escalating, and ensure the safe operation of the main body of the storage tank. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the self-inspection device for the underground storage tank leak detection structure of this utility model.

[0019] Figure 2 This is a cross-sectional view of the protective shell of this utility model;

[0020] Figure 3 This is a schematic diagram of the leak detection component of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the self-testing component of this utility model;

[0022] Figure 5 This utility model Figure 4 A schematic diagram of its breakdown.

[0023] In the diagram, 1. Tank body; 2. Inlet and outlet pipes; 3. Leak detection assembly; 301. Ultrasonic leak detector; 302. Fixing collar; 303. Mounting bracket; 304. Second electric push rod; 305. Cleaning ring; 4. Self-testing assembly; 401. Support block; 402. First electric push rod; 403. L-shaped plate; 404. Mounting square hole; 405. Ultrasonic signal generator; 5. Groove; 6. Vertical threaded rod; 7. Threaded sleeve; 8. Limiting rod; 9. Protective shell; 10. Servo control motor. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-5 The present invention provides the following technical solution:

[0026] A self-inspection device for a leak detection structure of an underground storage tank includes a storage tank body 1, an inlet and outlet pipe 2 fixedly connected to the top of the storage tank body 1, a leak detection component 3 on the surface of the inlet and outlet pipe 2, the leak detection component 3 including an ultrasonic leak detector 301, and a self-inspection component 4 disposed directly below the ultrasonic leak detector 301.

[0027] The self-testing component 4 includes a support block 401. A first electric push rod 402 is fixedly connected to the right side of the support block 401. An L-shaped plate 403 is provided on the left side of the support block 401. A mounting square hole 404 is opened inside the bottom end of the L-shaped plate 403. An ultrasonic signal generator 405 is fixedly connected inside the mounting square hole 404. The ultrasonic signal generator 405 is used in conjunction with the ultrasonic leak detector 301.

[0028] In this embodiment: by setting up the self-testing component 4, the support block 401 can provide a platform for the installation and fixation of other components, ensuring the stability of each part of the self-testing component 4. The function of the first electric push rod 402 is to push the support block 401 and the L-shaped plate 403 connected to it to move horizontally. Through this horizontal movement, the horizontal position of the ultrasonic signal generator 405 can be adjusted so that it can accurately cooperate with the ultrasonic leak detector 301 according to different detection needs and actual conditions, ensuring the effective transmission and reception of the self-testing signal. The L-shaped plate 403 can provide an installation position for the ultrasonic signal generator 405, ensuring the stability of the signal generator during operation and avoiding the impact of shaking or displacement on the self-testing effect. The ultrasonic signal generator 405 can generate ultrasonic signals that simulate the leakage of the storage tank. By cooperating with the ultrasonic leak detector 301, it emits ultrasonic signals of specific frequency and intensity to simulate different degrees of leakage, thereby detecting whether the ultrasonic leak detector 301 can normally receive and identify these signals, and thus determining whether the working state of the leak detector is normal.

[0029] Specifically, such as Figure 2 , Figure 3 As shown, a fixing collar 302 is fixedly sleeved on the surface of the inlet and outlet pipe 2, and a mounting bracket 303 is fixedly connected to the surface of the fixing collar 302, and the first electric push rod 402 is fixedly connected to the left side of the mounting bracket 303.

[0030] Specifically, such as Figure 3 As shown, a second electric push rod 304 is fixedly connected to the top of the inner wall of the mounting bracket 303, and the top of the ultrasonic leak detector 301 is fixedly connected to the telescopic end of the second electric push rod 304.

[0031] Specifically, such as Figure 3 As shown, a cleaning ring 305 is fixedly connected inside the mounting bracket 303, and the cleaning ring 305 is used in conjunction with the probe of the ultrasonic leak detector 301. A cleaning brush is provided inside the cleaning ring 305.

[0032] In this embodiment: Through the above settings, the fixing ring 302 can provide a stable installation position for the mounting bracket 303, ensuring that the mounting bracket 303 can be accurately installed at a specific position on the inlet and outlet pipes 2, so that the self-testing component 4 and the leak detection component 3 can be in a suitable detection position, ensuring the accuracy of the detection. The mounting bracket 303 can provide a fixed position for the first electric push rod 402, so that the first electric push rod 402 can stably push the self-testing component 4 to move horizontally. At the same time, it can also provide an installation base for the second electric push rod 304 and the cleaning ring 305, ensuring the structural integrity and stability of the entire device. The function of the second electric push rod 304 is to adjust the vertical height of the ultrasonic leak detector 301. Through precise extension and retraction, the second electric push rod 304 can smoothly and accurately move the ultrasonic leak detector 301 into the cleaning ring 305, so that the probe can fully contact the cleaning brush inside the cleaning ring 305, achieving efficient cleaning of dust, oil and other impurities on the probe surface, effectively ensuring the detection accuracy and service life of the ultrasonic leak detector 301.

[0033] Specifically, such as Figure 5 As shown, a groove 5 is provided on the left side of the support block 401. A vertical threaded rod 6 is rotatably connected inside the groove 5. A threaded sleeve 7 is threadedly connected to the surface of the vertical threaded rod 6. The left side of the threaded sleeve 7 is fixedly connected to the right side of the L-shaped plate 403.

[0034] Specifically, such as Figure 5 As shown, a limiting rod 8 is fixedly connected inside the groove 5, and a threaded sleeve 7 is slidably connected to the surface of the limiting rod 8.

[0035] In this embodiment: Through the above settings, the groove 5 can provide installation space for the vertical threaded rod 6, the threaded sleeve 7, and the limiting rod 8, playing a role in accommodating and positioning these components. When the vertical threaded rod 6 rotates, since the threaded sleeve 7 is threadedly connected to the vertical threaded rod 6, according to the thread transmission principle, the threaded sleeve 7 will move up and down along the vertical threaded rod 6, thereby driving the connected L-shaped plate 403 and ultrasonic signal generator 405 to move precisely in the vertical direction to adapt to the detection requirements of different heights, enhancing the versatility and flexibility of the self-testing component 4. The limiting rod 8 can guide and limit the movement of the threaded sleeve 7, restricting the threaded sleeve 7 to slide only along the surface of the limiting rod 8, preventing the threaded sleeve 7 from rotating or deviating during the rotation of the vertical threaded rod 6, ensuring that the threaded sleeve 7 drives the L-shaped plate 403 to move up and down smoothly and accurately, thereby making the movement of the ultrasonic signal generator 405 in the vertical direction more stable and reliable, and improving the accuracy and stability of the operation of the self-testing component 4.

[0036] Specifically, such as Figure 1As shown, a protective shell 9 is fixedly connected to the top of the main body 1 of the storage tank. The leak detection component 3 and the self-test component 4 are both located inside the protective shell 9. The inlet and outlet pipes 2 pass through the protective shell 9 and are fixedly connected to it.

[0037] Specifically, such as Figure 5 As shown, a servo control motor 10 is fixedly connected to the top of the support block 401, and the output end of the servo control motor 10 is fixedly connected to the top of the vertical threaded rod 6.

[0038] In this embodiment: By providing a protective housing 9, the leak detection component 3 and the self-testing component 4 can be completely enclosed, effectively resisting external physical impacts and dust impurities. This provides a relatively stable and clean operating environment for the leak detection and self-testing components 4, extending the service life of the equipment. The servo control motor 10 is connected to the vertical threaded rod 6, providing precise and controllable power for the rotation of the vertical threaded rod 6. By providing the servo control motor 10, which has high-precision position and speed control capabilities, it can accurately control the rotation angle and speed of the vertical threaded rod 6 according to the detection requirements, thereby achieving... The precise adjustment of the vertical position of the ultrasonic signal generator 405 ensures that the ultrasonic signal generator 405 accurately reaches the predetermined position, whether for testing storage tanks of different specifications or to adapt to different testing scenarios. This ensures the accuracy and effectiveness of the self-testing process. Furthermore, the servo control motor 10 can be connected to the control system of the entire self-testing device to achieve automated operation. In the preset self-testing program, the servo control motor 10 can automatically start, stop, and adjust operating parameters according to instructions, eliminating the need for manual adjustment. This improves the efficiency and intelligence of the self-testing work and reduces human error and labor intensity.

[0039] Working Principle: During normal operation of the main body 1 of the storage tank, the inlet and outlet pipes 2 are used for material transportation. The ultrasonic leak detector 301 in the leak detection assembly 3 is in standby mode. If a leak occurs at the inlet and outlet pipes 2, the probe of the ultrasonic leak detector 301 will capture these ultrasonic signals, convert them into electrical signals, and after internal circuit processing and analysis, determine whether a leak has occurred in the main body 1 of the storage tank. The detection results are presented to the operator in the form of numbers, graphics, or sound, so that the leak can be detected in time and measures can be taken. When the leak detection assembly 3 needs to be self-checked periodically, the self-check program is started. The first electric push rod 402 is activated, which pushes the support block 401, L-shaped plate 403, and ultrasonic signal generator 405 to move horizontally, so that the ultrasonic signal generator 405 is aligned with the ultrasonic leak detector 301. Then the servo control motor 10 starts working, driving the vertical threaded rod 6 to rotate. The screw sleeve 7 moves vertically with the rotation of the vertical threaded rod 6, thereby driving the L-shaped plate 403 and the ultrasonic signal generator 405 to move up and down, thus positioning the ultrasonic signal generator 405. Adjust the ultrasonic leak detector 301 to a height that matches its position. Once the ultrasonic signal generator 405 is in the appropriate position, it will generate ultrasonic signals simulating a tank leak. These simulated signals will be received by the ultrasonic leak detector 301, which will process and analyze them. If the leak detector can accurately identify and respond to the simulated signals, it indicates that it is working normally. If the leak detector fails to respond or provides abnormal feedback, it indicates that the leak detector may be faulty and requires repair or calibration. After the self-test is completed, activate the second electric push rod 304. The second electric push rod 304 will move the ultrasonic leak detector 301 downward, allowing its probe to enter the cleaning ring 305 inside the mounting bracket 303. The cleaning brush inside the cleaning ring 305 will contact the probe surface. During the probe movement, the cleaning brush will remove dust, oil, and other impurities attached to the probe. After cleaning, the second electric push rod 304 will move the ultrasonic leak detector 301 upward again, returning it to the initial detection position, ready for the next leak detection or self-test.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-checking device for a buried tank leak detection structure, comprising a tank body (1), characterized in that: The top of the storage tank body (1) is fixedly connected with an inlet and outlet pipeline (2), the surface of the inlet and outlet pipeline (2) is provided with a leak detection assembly (3), the leak detection assembly (3) comprises an ultrasonic leak detector (301), and a self-checking assembly (4) is arranged directly below the ultrasonic leak detector (301); The self-checking assembly (4) comprises a supporting block (401), a first electric push rod (402) is fixedly connected to the right side of the supporting block (401), an L-shaped plate (403) is arranged on the left side of the supporting block (401), a mounting square hole (404) is formed in the inner bottom end of the L-shaped plate (403), and an ultrasonic signal generator (405) is fixedly connected in the mounting square hole (404) and used in cooperation with the ultrasonic leak detector (301).

2. The self-checking device of a buried tank leak detection structure according to claim 1, characterized in that: The surface of the inlet and outlet pipeline (2) is fixedly sleeved with a fixed sleeve ring (302), the fixed sleeve ring (302) is fixedly connected with a mounting rack (303), and the first electric push rod (402) is fixedly connected to the left side of the mounting rack (303).

3. The self-checking device of a buried tank leak detection structure according to claim 2, characterized in that: A second electric push rod (304) is fixedly connected to the top of the inner wall of the mounting rack (303), and the top of the ultrasonic leak detector (301) is fixedly connected with the telescopic end of the second electric push rod (304).

4. The self-checking device of a buried tank leak detection structure according to claim 2, characterized in that: A cleaning ring (305) is fixedly connected in the mounting rack (303) and used in cooperation with the probe of the ultrasonic leak detector (301), and the cleaning ring (305) is provided with a cleaning brush in the inner portion.

5. The self-checking device of a buried tank leak detection structure according to claim 1, characterized in that: A groove (5) is formed in the left side of the supporting block (401), a vertical threaded rod (6) is rotatably connected in the inner portion of the groove (5), a screw sleeve (7) is screw-connected to the surface of the vertical threaded rod (6), and the left side of the screw sleeve (7) is fixedly connected with the right side of the L-shaped plate (403).

6. The self-checking device of a buried tank leak detection structure according to claim 5, characterized in that: A limiting rod (8) is fixedly connected in the inner portion of the groove (5), and the screw sleeve (7) is slidingly connected to the surface of the limiting rod (8).

7. The self-checking device of a buried tank leak detection structure according to claim 1, characterized in that: A protective shell (9) is fixedly connected to the top of the storage tank body (1), the leak detection assembly (3) and the self-checking assembly (4) are located in the inner portion of the protective shell (9), and the inlet and outlet pipeline (2) penetrates through the protective shell (9) and is fixedly connected therewith.

8. The self-checking device of a buried tank leak detection structure according to claim 5, characterized in that: A servo control motor (10) is fixedly connected to the top of the supporting block (401), and the output end of the servo control motor (10) is fixedly connected with the top of the vertical threaded rod (6).

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