Sound wave accurate positioning leakage detection device for heat supply pipe network
By designing a precise positioning and leak checking device for the heating pipe network, the problem of insufficient adaptability and accuracy of existing equipment is solved, and rapid assembly, dismantling and all-round positioning and leak checking are achieved, meeting the daily use needs of the heating pipe network.
Patent Information
- Application Number
- CN202422240125.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The existing sound wave precise positioning and leak detection equipment cannot be used in all aspects in the heating pipeline network, the equipment integrated design cannot be quickly assembled and maintained, and the leak detection and control are not accurate, and the convenience is insufficient, which cannot meet daily use needs.
A device for precise positioning and leakage detection for heating pipe networks is designed, including mounting ring frames, sound wave sensors and sound wave receivers. It can quickly assemble and replace through structures such as clamping arc bases, thread grooves and ring contact joints, and combine universal joints and moving rollers to achieve all-round angle adjustment and movement, improving the adaptability and precise positioning capabilities of the equipment.
It realizes the rapid adaptation, assembly and dismantling of equipment, improves the precise reception and positioning of sound wave signals, meets the leakage check needs of daily heating pipeline networks, and enhances the practicality and comprehensiveness of the equipment.
Smart Images
Figure CN223076777U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat supply pipe networks, in particular to an acoustic wave precise positioning leak detection device for heat supply pipe networks. Background Technique
[0002] Due to various reasons such as corrosion and aging, load vibration, pipe quality, construction quality, and service life, heat supply pipelines will inevitably leak. Some water leakage points cannot return to the ground due to various reasons, and hidden leaks are formed that cannot be detected from the ground, resulting in the waste of precious finished water. Common leak detection methods include: valve bolt listening method, ground listening method, correlation analysis method, regional meter installation method, gas detection method, and temperature measurement method. Each method for detecting water leakage points in heating pipelines has great limitations. At the same time, detecting water leakage points in heating pipelines requires relatively high technical qualities and work experience of operators. Generally, technicians who can detect water leakage points in tap water, fire protection, and sprinkler pipelines may not be able to solve the problem of detecting water leakage points in heating pipelines.
[0003] The correlation leak detection method is the most advanced and effective leak detection method at present, especially suitable for areas with large environmental interference, too deep pipe burial depth, or areas where the ground listening method is not applicable. After equipped with a leak detection correlation instrument, leak detection personnel can use the correlation analysis method to detect the pipeline. However, the existing acoustic wave precise positioning leak detection equipment used in conjunction with the correlation leak detection method cannot be used in a more adaptable and all-round manner. The integrated design of the equipment cannot be assembled, maintained, and used quickly. At the same time, the equipment cannot be used for more precise and convenient leak detection control, and cannot meet the daily use requirements. Therefore, it is urgent to design an acoustic wave precise positioning leak detection device for heat supply pipe networks to solve the above problems. Summary of the Invention
[0004] The purpose of the utility model is to provide an acoustic wave precise positioning leak detection device for heat supply pipe networks to solve the problem mentioned in the above background technique that the correlation leak detection method is the most advanced and effective leak detection method at present, especially suitable for areas with large environmental interference, too deep pipe burial depth, or areas where the ground listening method is not applicable. After equipped with a leak detection correlation instrument, leak detection personnel can use the correlation analysis method to detect the pipeline. However, the existing acoustic wave precise positioning leak detection equipment used in conjunction with the correlation leak detection method cannot be used in a more adaptable and all-round manner. The integrated design of the equipment cannot be assembled, maintained, and used quickly. At the same time, the equipment cannot be used for more precise and convenient leak detection control, and cannot meet the daily use requirements.
[0005] To achieve the above object, the utility model provides the following technical solution: an acoustic wave precise positioning and leakage detection device for a heat supply pipe network, including an installation ring frame, a back frame is fixedly connected to the back of the installation ring frame, a universal joint is arranged on the back of the back frame, an adjusting rod is arranged on the back of the universal joint, and clamping arc seats are fixedly connected to the four corners of the side surface of the installation ring frame;
[0006] An acoustic wave sensor and an acoustic wave receiver, the acoustic wave sensor is movably connected to the side of the installation ring frame through the clamping arc seat, the acoustic wave receiver is arranged inside the installation ring frame, and a receiving disc is arranged at the bottom end of the acoustic wave receiver.
[0007] Preferably, a threaded groove is formed on the side surface of the receiving disc, and an annular contact joint is arranged at the top end of the side surface of the receiving disc.
[0008] Preferably, clamping grooves are formed on both sides of the acoustic wave sensor, and clamping strips are arranged at both ends of the clamping arc seat.
[0009] Preferably, a strip-shaped contact interface is arranged on the inner wall of the clamping arc seat, and the clamping arc seat and the acoustic wave sensor are mutually adapted.
[0010] Preferably, moving rollers are arranged on the four sides of the bottom end of the installation ring frame.
[0011] Preferably, a central threaded sleeve is arranged at the center of the inside of the installation ring frame, and an annular contact interface is arranged at the top end of the inner wall of the central threaded sleeve.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The acoustic precise positioning leak detection device for the heat supply pipe network can enable the device to perform rapid adaptation and assembly operations through the provided mounting ring frame, clamping arc seat, acoustic wave sensor, acoustic wave receiver, receiving disc, threaded groove, annular contact joint, clamping groove, clamping strip, strip-shaped contact interface, central threaded sleeve, and annular contact interface. During actual use, the staff can first install the acoustic wave receiver through the threaded groove and annular contact joint on the side into the central threaded sleeve and annular contact interface inside the mounting ring frame, so that the receiving disc at the bottom of the acoustic wave receiver can be quickly installed at the center position of the bottom end of the mounting ring frame. Then, the four acoustic wave sensors are respectively adaptively docked with the clamping arc seats at the four corners of the side of the mounting ring frame. At this time, the clamping grooves on both sides of the acoustic wave sensor are positioned and clamped at the clamping strips at both ends of the clamping arc seat, and then the strip-shaped contact interface on the inner wall of the clamping arc seat is hermetically connected to the inside of the acoustic wave sensor, and the signal is connected in cooperation with the annular contact joint of the acoustic wave receiver. The four acoustic wave sensors emit positioning acoustic wave signals, and the receiving disc at the bottom of the acoustic wave receiver performs precise acoustic wave receiving operations, so that the acoustic wave sensors and acoustic wave receivers on the mounting ring frame can be disassembled and replaced at any time to meet the daily leak detection requirements, reflecting the practicality of the device design.
[0014] The acoustic precise positioning leak detection device for the heat supply pipe network further improves the overall use effect of the device through the provided mounting ring frame, back frame, universal joint, adjusting rod, clamping arc seat, acoustic wave sensor, acoustic wave receiver, and moving rollers. During daily use, the staff can move the entire mounting ring frame through the moving rollers at the four sides of the bottom. At the same time, the universal joint inside the back frame cooperates with the adjusting rod to realize the omnidirectional adaptive angle adjustment operation of the entire mounting ring frame, so as to realize the stable movement and adjustment operation on different planes, and further more stably realize the acoustic precise positioning leak detection work of the entire mounting ring frame, reflecting the comprehensiveness of the device design. Brief Description of the Drawings
[0015] Figure 1 is a three-dimensional schematic diagram of the structure of the present utility model;
[0016] Figure 2 is an overall schematic diagram of the structure of the mounting ring frame of the present utility model;
[0017] Figure 3 is an overall schematic diagram of the structure of the acoustic wave receiver of the present utility model;
[0018] Figure 4 is the present utility model Figure 1 is an enlarged schematic diagram of the structure at A in the present utility model.
[0019] In the figure: 1. Installation ring frame; 2. Back frame; 3. Universal joint; 4. Adjusting rod; 5. Clamping arc seat; 6. Acoustic wave sensor; 7. Acoustic wave receiver; 8. Receiving disc; 9. Thread groove; 10. Ring-shaped contact joint; 11. Clamping groove; 12. Clamping strip; 13. Strip-shaped contact interface; 14. Moving roller; 15. Central thread sleeve; 16. Ring-shaped contact interface. Specific implementation manner
[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0021] Please refer to Figures 1-4 , an embodiment provided by the present invention:
[0022] An acoustic wave precise positioning and leakage detection device for a heat supply pipe network includes an installation ring frame 1. A back frame 2 is fixedly connected to the back of the installation ring frame 1. A universal joint 3 is arranged on the back of the back frame 2. An adjusting rod 4 is arranged on the back of the universal joint 3. Clamping arc seats 5 are fixedly connected to the four corners of the side of the installation ring frame 1. Moving rollers 14 are arranged on the four sides of the bottom end of the installation ring frame 1. A central thread sleeve 15 is arranged at the center inside the installation ring frame 1. A ring-shaped contact interface 16 is arranged at the top end of the inner wall of the central thread sleeve 15. The whole installation ring frame 1 is moved through the moving rollers 14 on the four sides of the bottom. At the same time, the universal joint 3 inside the back frame 2 cooperates with the adjusting rod 4, which can realize the angle adjustment operation of the overall all-round adaptability of the installation ring frame 1.
[0023] An acoustic wave sensor 6 and an acoustic wave receiver 7. The acoustic wave sensor 6 is movably connected to the four sides of the side of the installation ring frame 1 through the clamping arc seats 5. The acoustic wave receiver 7 is arranged inside the installation ring frame 1. A receiving disc 8 is arranged at the bottom end of the acoustic wave receiver 7. A thread groove 9 is opened on the side of the receiving disc 8. A ring-shaped contact joint 10 is arranged at the top end of the side of the receiving disc 8. Clamping grooves 11 are opened on both sides of the acoustic wave sensor 6. Clamping strips 12 are arranged at both ends of the clamping arc seat 5. A strip-shaped contact interface 13 is arranged on the inner wall of the clamping arc seat 5. The clamping arc seat 5 and the acoustic wave sensor 6 are mutually adapted. The receiving disc 8 at the bottom end of the acoustic wave receiver 7 is quickly installed at the center position of the bottom end of the installation ring frame 1. Then, the four groups of acoustic wave sensors 6 are respectively adapted and docked with the clamping arc seats 5 at the four corners of the side of the installation ring frame 1. At this time, the clamping grooves 11 on both sides of the acoustic wave sensor 6 are positioned and clamped at the clamping strips 12 at both ends of the clamping arc seat 5.
[0024] When a pipeline leaks, a sound pressure wave with a much higher frequency than ordinary underwater sound can be generated and propagated along the pipeline. The frequency of the leakage noise mainly depends on the size of the leakage point, and the propagation speed of the leakage noise mainly depends on the pipeline diameter and pipe material. The leakage signal is measured by vibration sensors or acoustic emission sensors placed at both ends of the pipeline with the leakage point surrounded in the middle. Since the leakage point may be located at different positions on the pipeline, the propagation time of the leakage sound to the two sensors is different. By using the cross-correlation analysis of the two signals, generally, the time difference of the leakage noise reaching the two sensors can be determined. Based on this time difference, the distance between the leakage point and the two sensors can be calculated through the distance between the two sensors and the propagation speed of the sound wave in this pipe material.
[0025] The calculation formula for the correlation coefficient is as follows:
[0026] Calculation of the leakage location:
[0027] For pipelines with different pipe materials and different outer diameters, the sound propagation speed is different. According to the pre-given speed table, it can be known that the distance between the two sensors can also be measured.
[0028] Assume that the distance between the leakage point and the nearer sensor is L, the distance between the two sensors is D, the speed of the sound wave is V, and the time difference of the leakage sound wave reaching the two sensors is Td. Then the calculation formula for the distance between the leakage point and the nearer sensor is as follows:
[0029] Working principle: When in use, the user first installs the acoustic wave receiver 7 through the threaded groove 9 on the side and the annular contact joint 10 into the central threaded sleeve 15 and the annular contact interface 16 inside the mounting ring frame 1, so that the receiving disk 8 at the bottom of the acoustic wave receiver 7 is quickly installed at the center position at the bottom of the mounting ring frame 1. Then, the four acoustic wave sensors 6 are respectively adaptively docked with the clamping arc seats 5 at the four corners on the side of the mounting ring frame 1. At this time, the clamping grooves 11 on both sides of the acoustic wave sensor 6 are positioned and clamped at the clamping strips 12 at both ends of the clamping arc seat 5. Then, the strip-shaped contact interface 13 on the inner wall of the clamping arc seat 5 is used to seal and connect with the inside of the acoustic wave sensor 6, and cooperate with the signal connection operation at the annular contact joint 10 of the acoustic wave receiver 7. The four acoustic wave sensors 6 emit positioning acoustic wave signals, and the receiving disk 8 at the bottom of the acoustic wave receiver 7 precisely receives the acoustic waves, so that the equipment acoustic wave sensors 6 and the acoustic wave receiver 7 on the mounting ring frame 1 can be disassembled and replaced at any time to meet the daily leak detection requirements. During the daily use process, the staff can move the entire mounting ring frame 1 through the moving rollers 14 on the four sides of the bottom. At the same time, the universal joint 3 inside the back frame 2 cooperates with the adjusting rod 4 to realize the omnidirectional adaptive angle adjustment operation of the entire mounting ring frame 1, so as to realize the stable movement and adjustment operation on different planes, and further more stably realize the precise acoustic wave positioning and leak detection work of the entire mounting ring frame 1. The above is the entire working principle of the present utility model.
[0030] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.
Claims
1. An acoustic precise positioning leak detection device for a heat supply pipe network, comprising an installation ring frame (1), characterized in that: The back of the installation ring frame (1) is fixedly connected with a back frame (2). A universal joint (3) is arranged on the back of the back frame (2). An adjusting rod (4) is arranged on the back of the universal joint (3). The four corners of the side of the installation ring frame (1) are fixedly connected with clamping arc seats (5). A sound wave sensor (6) and a sound wave receiver (7). The sound wave sensor (6) is movably connected to the four sides of the side of the installation ring frame (1) through the clamping arc seats (5). The sound wave receiver (7) is arranged inside the installation ring frame (1). A receiving disc (8) is arranged at the bottom end of the sound wave receiver (7).
2. The acoustic precise positioning and leakage detection device for a heat supply pipe network according to claim 1, characterized in that: Thread grooves (9) are formed in the side of the receiving disc (8). An annular contact joint (10) is arranged at the top end of the side of the receiving disc (8).
3. The acoustic precise positioning leak detection device for the heating pipe network according to claim 1, wherein: Clamping grooves (11) are formed in both sides of the sound wave sensor (6). Clamping strips (12) are arranged at both ends of the clamping arc seat (5).
4. The acoustic precise positioning and leakage detection device for a heating pipe network according to claim 1, wherein: A strip-shaped contact interface (13) is arranged on the inner wall of the clamping arc seat (5). The clamping arc seat (5) and the sound wave sensor (6) are mutually adapted.
5. The acoustic precise positioning and leakage detection device for a heat supply pipeline network according to claim 1, characterized in that: Moving rollers (14) are arranged at the four sides of the bottom end of the installation ring frame (1).
6. The acoustic precise positioning leak detection device for a heat supply pipe network according to claim 1, wherein: A central threaded sleeve (15) is arranged at the center inside the installation ring frame (1). An annular contact interface (16) is arranged at the top end of the inner wall of the central threaded sleeve (15).