Detection positioning device for leakage

Abstract

The utility model discloses a detection positioning device for leakage, which comprises an upper clamping ring and an ultrasonic pipeline crack detector, one end of the upper clamping ring is rotatably connected with a lower clamping ring through a hinge, a microcontroller is arranged on the inner wall of one side of the upper clamping ring through a screw, and the inner wall of the top of the upper clamping ring is in threaded connection with a detection probe. The upper clamping ring and the lower clamping ring are provided with detection probes, the detection probes are electrically connected with the ultrasonic pipeline crack detector, the ultrasonic pipeline crack detector is electrically connected with the microcontroller, mounting grooves are formed in the upper clamping ring and the lower clamping ring, PZT sensors distributed at equal intervals are mounted in the mounting grooves through screws, and the PZT sensors are electrically connected with the microcontroller. The PZT sensor is used for detecting whether cracks exist in the axial direction of the pipeline or not, and after it is determined that the cracks exist in the axial direction of the pipeline linearly, the specific position of the leaked cracks in the pipeline can be determined through the ultrasonic pipeline crack detector, so that follow-up maintenance of operators is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection equipment, and in particular relates to a detection and positioning device for leakage. Background Art

[0002] Oil and gas are gases that come out of oil wells along with petroleum. Their main components are methane, ethane, etc. They are used as fuel and chemical raw materials. Oil and gas are usually transported through pipelines. If cracks appear on the surface of the pipeline, oil and gas leakage will occur.

[0003] Chinese patent number CN217540414U discloses an environmental monitoring device for oil and gas pipelines, including an oil and gas pipeline, on which a first monitoring device, a second monitoring device and a third monitoring device are respectively installed. The utility model detects the oil and gas pressure value through a plurality of monitoring devices.

[0004] Existing leakage detection and positioning devices can usually only locate the leaking pipe section between two devices, but cannot locate the specific leakage position of the pipeline. After detecting the leaking pipe, the operator is required to hold the device and inspect the pipeline point by point, which is rather troublesome. For this reason, we propose a leakage detection and positioning device. Utility Model Content

[0005] The purpose of the utility model is to provide a leakage detection and positioning device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a leakage detection and positioning device, comprising an upper clamping ring and an ultrasonic pipe crack detector, one end of the upper clamping ring is rotatably connected to a lower clamping ring through a hinge, and a microcontroller is installed on the inner wall of one side of the upper clamping ring by screws, a detection probe is threadedly connected to the top inner wall of the upper clamping ring, and the detection probe is electrically connected to the ultrasonic pipe crack detector, the ultrasonic pipe crack detector is electrically connected to the microcontroller, the upper and lower clamping rings are both provided with mounting grooves, and PZT sensors equidistantly distributed are installed inside the mounting grooves by screws, and the PZT sensors are electrically connected to the microcontroller.

[0007] Preferably, indicator lights are equidistantly mounted on the outer walls of one side of the upper and lower retaining rings by screws, and the positions of the indicator lights correspond to the positions of the PZT sensors, and the indicator lights are electrically connected to the microcontroller.

[0008] Preferably, the upper and lower retaining rings are provided with protective grooves inside, and a motor is installed inside the protective groove by screws, the output end of the motor is keyed to a gear, and the motor is electrically connected to the microcontroller.

[0009] Preferably, the interiors of the upper and lower retaining rings are rotatably connected to rollers via bearings, and tooth grooves are formed on the side outer walls of the rollers, and the tooth grooves are meshed with gears.

[0010] Preferably, the inner walls of the side surfaces of the upper retaining ring and the lower retaining ring are provided with sliding grooves which are distributed at equal distances, and a contact cap is slidably connected inside the sliding groove. A spring is installed on the outer wall of one side of the contact cap by means of screws, and the spring is in contact with the input end of the adjacent PZT sensor.

[0011] Preferably, a clamping block is integrally formed at one end of the upper clamping ring, and a fixing block is integrally formed on one outer wall of the clamping block, a fixing groove is opened on one outer wall of the lower clamping ring, and the fixing block is clamped inside the fixing groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Through the setting of PZT sensor and pipeline crack detector, the PZT sensor is used to detect whether there is crack in the pipeline axial direction. After determining that there is crack in the pipeline axial line, the ultrasonic pipeline crack detector can be used to determine the specific location of the leakage crack in the pipeline, so as to facilitate the operator to carry out subsequent maintenance.

[0014] 2. The contact cap is in direct contact with the pipeline through the setting. After the device is worn out after long-term use, the contact cap can be directly replaced without causing wear of the PZT sensor, which can effectively reduce the use and maintenance costs of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural sectional view of the utility model;

[0017] Figure 3 It is a partial enlarged schematic diagram of structure A of the utility model;

[0018] Figure 4 It is a partial enlarged schematic diagram of the B structure of the utility model;

[0019] In the figure: 1. upper retaining ring; 2. lower retaining ring; 3. retaining block; 4. ultrasonic pipe crack detector; 5. detection probe; 6. indicator light; 7. microcontroller; 8. fixing groove; 9. fixing block; 10. mounting groove; 11. PZT sensor; 12. slide groove; 13. contact cap; 14. spring; 15. protective groove; 16. motor; 17. gear; 18. roller; 19. tooth groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1:

[0022] See also Figures 1 to 4 The utility model provides a technical solution: a leakage detection and positioning device, comprising an upper clamping ring 1 and an ultrasonic pipeline crack detector 4, one end of the upper clamping ring 1 is rotatably connected to a lower clamping ring 2 through a hinge, and a microcontroller 7 is installed on the inner wall of one side of the upper clamping ring 1 through screws, a detection probe 5 is threadedly connected to the inner wall of the top of the upper clamping ring 1, and the detection probe 5 is electrically connected to the ultrasonic pipeline crack detector 4, the ultrasonic pipeline crack detector 4 is electrically connected to the microcontroller 7, the upper clamping ring 1 and the lower clamping ring 2 are both provided with mounting grooves 10, and PZT sensors 11 equidistantly distributed are installed inside the mounting grooves 10 through screws, and the PZT sensors 11 are electrically connected to the microcontroller 7.

[0023] From the above description, it can be seen that the utility model has the following beneficial effects: by setting up the PZT sensor 11 and the pipeline crack detector 4, the PZT sensor 11 is used to detect whether there is a crack in the axial direction of the pipeline. After determining that there is a crack in the axial linear direction of the pipeline, the ultrasonic pipeline crack detector 4 can be used to determine the specific location of the leakage crack in the pipeline, so as to facilitate the operator to perform subsequent maintenance.

[0024] For further information, see Figure 1 , indicator lights 6 are equidistantly installed on the outer wall of one side of the upper retaining ring 1 and the lower retaining ring 2 by screws, and the position of the indicator light 6 corresponds to the position of the PZT sensor 11, the indicator light 6 is electrically connected to the microcontroller 7, the upper retaining ring 1 and the lower retaining ring 2 are provided with a protective groove 15, and the inside of the protective groove 15 is provided with a motor 16 by screws, the output end of the motor 16 is keyed to a gear 17, and the motor 16 is electrically connected to the microcontroller 7, the upper retaining ring 1 and the lower retaining ring 2 are rotatably connected to a roller 18 through a bearing, and a tooth groove 19 is provided on the side outer wall of the roller 18, and the tooth groove 19 is meshed with the gear 17.

[0025] Embodiment 2:

[0026] See also Figures 1 to 4As shown, based on the first embodiment, the utility model provides a technical solution: the inner walls of the side surfaces of the upper retaining ring 1 and the lower retaining ring 2 are provided with sliding grooves 12 which are equidistantly distributed, and the interior of the sliding groove 12 is slidably connected with a contact cap 13, and a spring 14 is installed on the outer wall of one side of the contact cap 13 by means of screws, and the spring 14 is in contact with the input end of the adjacent PZT sensor 11.

[0027] By adopting the above technical solution, a contact cap 13 is provided, and the contact cap 13 directly contacts the pipeline. After the device is worn out after long-term use, the contact cap 13 can be directly replaced without causing wear of the PZT sensor 11, which can effectively reduce the use and maintenance costs of the device.

[0028] For further information, see Figure 2 A clamping block 3 is integrally formed at one end of the upper clamping ring 1, and a fixing block 9 is integrally formed on one side outer wall of the clamping block 3. A fixing groove 8 is opened on one side outer wall of the lower clamping ring 2, and the fixing block 9 is clamped inside the fixing groove 8.

[0029] The working principle and use process of the utility model are as follows: when in use, the operator first opens the upper clamp ring 1 and the lower clamp ring 2, and then clamps the two to the outside of one end of the pipe to be detected, and connects and fixes the upper clamp ring 1 and the lower clamp ring 2 through the fixing groove 8 and the fixing block 9. At this time, the contact cap 13 is in contact with the surface of the pipe. After starting the device, the operator uses a metal ball to gently tap the surface of the other end of the pipe along the circumference. At this time, multiple PZT sensors 11 will pick up a group of stress waves. The microcontroller 7 compares the stress waves of multiple PZT sensors 11. If the attenuation degree of one group is greater than the preset threshold, it means that the PZT sensor 11 is on the pipe axis. When a crack appears, the microcontroller 7 will start the indicator light 6 corresponding to the PZT sensor 11. At this time, the operator rotates the upper clamp ring 1 and the lower clamp ring 2, and the upper clamp ring 1 and the lower clamp ring 2 drive the detection probe 5 to move, so that the detection probe 5 moves to the axis of the indicator light 6. Finally, the operator starts the motor 16, and the motor 16 drives the roller 18 to move through the gear 17 and the tooth groove 19. The roller 18 drives the upper clamp ring 1, the lower clamp ring 2 and the detection probe 5 to move axially on the pipeline until the ultrasonic pipeline crack detector 4 detects the specific position of the crack through the detection probe 5. The microcontroller 7 controls the motor 16 to stop, and the corresponding position of the detection probe 5 is where the leakage crack exists.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A leakage detection and positioning device, comprising an upper clamping ring (1) and an ultrasonic pipeline crack detector (4), characterized in that: One end of the upper clamping ring (1) is rotatably connected to the lower clamping ring (2) via a hinge, and a microcontroller (7) is installed on the inner wall of one side of the upper clamping ring (1) via screws. A detection probe (5) is threadedly connected to the inner wall of the top of the upper clamping ring (1), and the detection probe (5) is electrically connected to the ultrasonic pipeline crack detector (4). The ultrasonic pipeline crack detector (4) is electrically connected to the microcontroller (7). The upper clamping ring (1) and the lower clamping ring (2) are both provided with mounting grooves (10), and PZT sensors (11) are installed in the mounting grooves (10) at equal distances via screws, and the PZT sensors (11) are electrically connected to the microcontroller (7).

2. A leak detection and positioning device according to claim 1, characterized in that: Indicator lights (6) are installed on one side outer wall of the upper clamping ring (1) and the lower clamping ring (2) by screws and are distributed at equal distances, and the positions of the indicator lights (6) correspond to the positions of the PZT sensors (11), and the indicator lights (6) are electrically connected to the microcontroller (7).

3. A leak detection and positioning device according to claim 1, characterized in that: The upper retaining ring (1) and the lower retaining ring (2) are both provided with a protective groove (15), and a motor (16) is installed inside the protective groove (15) by means of screws, the output end of the motor (16) is key-connected with a gear (17), and the motor (16) is electrically connected to the microcontroller (7).

4. A leak detection and positioning device according to claim 3, characterized in that: The interiors of the upper clamping ring (1) and the lower clamping ring (2) are rotatably connected to rollers (18) via bearings, and tooth grooves (19) are formed on the side outer walls of the rollers (18), and the tooth grooves (19) are meshed with the gears (17).

5. A leak detection and positioning device according to claim 1, characterized in that: The side inner walls of the upper clamping ring (1) and the lower clamping ring (2) are both provided with sliding grooves (12) distributed at equal distances, and a contact cap (13) is slidably connected inside the sliding groove (12), and a spring (14) is installed on one side outer wall of the contact cap (13) by means of screws, and the spring (14) is in contact with the input end of an adjacent PZT sensor (11).

6. A leak detection and positioning device according to claim 1, characterized in that: A clamping block (3) is integrally formed on one end of the upper clamping ring (1), and a fixing block (9) is integrally formed on one side outer wall of the clamping block (3); a fixing groove (8) is formed on one side outer wall of the lower clamping ring (2), and the fixing block (9) is clamped inside the fixing groove (8).

Images