Audio transmitter and pipeline detection positioning instrument

Abstract

The utility model discloses an audio transmitter and a pipeline detection positioning instrument, which comprise a transmitter shell, an audio module is arranged in the transmitter shell, and an adapter which is connected with the transmitter shell is arranged outside the transmitter shell; a detachable natural gas concentration detection module is further arranged inside or outside the emitter shell. According to the audio transmitter, the natural gas concentration detection module is arranged inside or outside the audio transmitter, so that the concentration of natural gas at the joint of equipment can be monitored in real time in the working process of the audio transmitter, whether natural gas leakage exists in the working environment or not can be determined, dangerous operation is avoided, potential safety hazards are reduced, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline detection, in particular to an audio transmitter and a pipeline detection and locating instrument. Background Art

[0002] The intelligent acoustic wave gas PE pipeline locator is a device that uses active sound source positioning to detect the location of the gas PE pipeline. The intelligent acoustic wave gas PE pipeline locator is divided into a receiving end and a transmitting end. Its specific working principle is to install the transmitting end (audio transmitter) to the relief valve interface of the gas pipeline, and modulate a specific acoustic wave signal through the transmitting host of the transmitting end to transmit it into the gas PE pipeline. The acoustic wave drives the gas particles in the pipeline to vibrate, and the vibrating particles drive the next gas particle to vibrate. While the acoustic wave signal propagates along the natural gas in the PE pipeline, it passes through the pipe wall, soil and other media to reach the surface, and the sensor receives the signal, and then the host analyzes and locates the precise position of the pipeline.

[0003] In the prior art, since the connection between the audio transmitter and the pipeline is generally located in the relief valve and the pressure regulating box, a slight gas leak may occur at the connection, and when the concentration exceeds the standard, there will be a greater safety hazard; the existing operation is generally to use a handheld detector to detect once during the installation and disassembly process to see if there are any safety hazards. However, the entire equipment may be used for many hours. If it is not detected in real time, a leak may occur without being known. If the audio transmitter interface is monitored for a long time during this period by a handheld natural gas leak detector, it is a waste of manpower.

[0004] In addition, the audio transmitter will generate heat and even produce electric sparks during long-term operation, which not only has an adverse effect on the service life of the equipment itself, but also poses a safety hazard of explosion when encountering gas. Summary of the invention

[0005] The purpose of the utility model is to provide an audio transmitter and a pipeline detection and locating instrument in view of the problems existing in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An audio transmitter comprises a transmitter shell, wherein an audio module is arranged inside the transmitter shell, and a conversion joint connected to the transmitter shell is arranged outside the transmitter shell; a detachable natural gas concentration detection module is also arranged inside or outside the transmitter shell.

[0008] By arranging the natural gas concentration detection module inside or outside the audio transmitter, the concentration of natural gas (such as methane, ethane, etc.) at the connection of the device can be monitored in real time during the operation of the audio transmitter, so as to confirm whether there is a natural gas leak in the working environment and avoid dangerous operations, thereby reducing safety hazards and improving safety.

[0009] Integrating the natural gas concentration detection module on the audio transmitter can also reduce manual workload. There is no need for detection personnel to use a natural gas leak detector to perform leak detection after installing the audio transmitter, which also improves the work efficiency of pipeline detection.

[0010] In some embodiments, a temperature sensor is further provided in the transmitter housing, and the temperature sensor can monitor the temperature inside the audio transmitter housing in real time.

[0011] Furthermore, the natural gas concentration detection module includes a gas receiving sensing module and a mounting base connected to the gas receiving sensing module, and the mounting base can be detachably mounted on the transmitter housing.

[0012] In some embodiments, an air guide valve is also provided on the launcher housing.

[0013] In some embodiments, a lifting handle is further provided on the transmitter housing to facilitate lifting the audio transmitter as a whole, so as to facilitate movement and installation of the audio transmitter.

[0014] Furthermore, the transmitter shell includes a lower shell and an upper cover arranged on the lower shell, and a step structure is also provided at the mating surface of the upper cover and the lower shell; the natural gas concentration detection module is installed above or below the upper cover, and the audio module is installed in the lower shell.

[0015] Furthermore, a connecting tube is provided on the bottom plate of the lower shell, and both ends of the connecting tube extend to the inside and outside of the lower shell respectively. The audio module is detachably installed on the inner connecting tube, and the conversion connector is detachably connected to the outer connecting tube.

[0016] In some embodiments, a plurality of peripheral convex strips are provided at intervals on the outer circumference of the lower shell.

[0017] A pipeline detection and locating instrument with the above-mentioned audio transmitter comprises a receiving end and a transmitting end, wherein the receiving end comprises a receiving host and a signal receiver connected to the receiving host, and the transmitting end comprises a transmitting host and an audio transmitter connected to the transmitting host, and the signal receiver is used to receive the sound wave signal emitted by the audio transmitter.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows: 1. The audio transmitter can monitor the concentration of natural gas at the connection of the device during the operation of the audio transmitter by arranging the natural gas concentration detection module inside or outside the audio transmitter, so as to confirm whether there is natural gas leakage in the working environment and avoid dangerous operations, thereby reducing safety hazards and improving safety; 2. Integrating the natural gas concentration detection module on the audio transmitter can also reduce the workload of manual labor, and there is no need for detection personnel to use a natural gas leak detector for leak detection after installing the audio transmitter, which also improves the work efficiency of pipeline detection; 3. The audio transmitter does not affect the While working normally, it can continuously monitor natural gas leakage in real time to avoid continuous manual detection; 4. When the temperature is too high, it is easy to cause damage to the signal transmission line and even generate electric sparks. If this phenomenon happens to encounter a natural gas leak, a very dangerous situation will occur. This audio transmitter can avoid this situation well through the coordinated setting of the natural gas concentration detection module and the temperature sensor, greatly improving safety; 5. This pipeline detection and locating instrument can cut off the output of the audio module power supply and issue an alarm prompt based on the methane concentration signal detected by the natural gas concentration detection module, and can respond quickly to allow staff to handle it and prevent it before it happens. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an overall schematic diagram of an audio transmitter of the utility model;

[0020] Figure 2 This is a schematic cross-sectional structure diagram of an audio transmitter of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of an audio transmitter of the utility model;

[0022] Figure 4 This is a schematic diagram of the transmitting end of the pipeline detection and locating instrument of the utility model;

[0023] In the figure: 1. Transmitter shell; 101. Lower shell; 102. Upper cover; 2. Audio module; 3. Conversion joint; 4. Natural gas concentration detection module; 401. Gas receiving sensing module; 402. Mounting seat; 5. Temperature sensor; 6. Mounting column; 7. Lifting handle; 8. Gas valve; 9. Connecting tube; 10. Raised strip; 11. Transmitter host. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution 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.

[0025] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "middle", "upper", "lower", "left", "right", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Example 1

[0026] like Figure 1 to Figure 3 As shown, an audio transmitter comprises a transmitter housing 1, wherein an audio module 2 is arranged inside the transmitter housing 1, and a conversion connector 3 connected to the transmitter housing 1 is arranged outside the transmitter housing 1; a detachable natural gas concentration detection module 4 is also arranged on the transmitter housing 1.

[0027] By arranging the natural gas concentration detection module 4 inside or outside the audio transmitter, the concentration of natural gas (such as methane, ethane, etc.) at the connection of the device can be monitored in real time during the operation of the audio transmitter, so as to confirm whether there is a natural gas leak in the working environment and avoid dangerous operations, thereby reducing safety hazards and improving safety.

[0028] That is, it is possible to realize real-time monitoring of the natural gas concentration in the transmitting end environment during the gas PE pipeline inspection and to issue an early warning of excessive natural gas concentration; it is possible to detect gas leaks in the first place, providing more time for processing and preventing problems before they occur.

[0029] Integrating the natural gas concentration detection module 4 on the audio transmitter can also reduce manual workload. There is no need for detection personnel to use a natural gas leak detector to perform leak detection after installing the audio transmitter, which also improves the work efficiency of pipeline detection.

[0030] Since pipeline inspection generally takes a long time, several hours or even dozens of hours, it is impossible for inspectors to continue to hold the natural gas leak detector for leak detection during the entire pipeline inspection process; this audio transmitter solves this problem very well, and can continuously monitor natural gas leaks in real time without affecting the normal operation of the audio transmitter.

[0031] In some embodiments, a temperature sensor 5 is further provided in the transmitter housing 1. The temperature sensor 5 can monitor the temperature inside the transmitter housing in real time, that is, monitor the state of the audio module;

[0032] For example, temperature monitoring can be used to provide a reminder, and feedback information can be sent to the transmitting host to remind the user that the temperature is too high and the power needs to be adjusted or the audio transmitter needs to be replaced. If the user does not take any action and the temperature continues to rise and reaches the set threshold, a signal will be sent to the receiving host to forcibly shut down the power output.

[0033] The audio transmitter has high power and long continuous working time during actual operation. If the temperature is too high, it is easy to cause damage to the audio module or signal transmission line and even generate electric sparks. If this phenomenon happens to encounter a natural gas leak, a very dangerous situation will occur. The audio transmitter can avoid this situation well through the coordinated setting of the natural gas concentration detection module and the temperature sensor, greatly improving safety.

[0034] On the one hand, the audio transmitter can avoid life safety problems in the detection working environment caused by leakage in the gas pipeline itself. The natural gas concentration detection module 4 integrated in the audio transmitter can detect and monitor the natural gas leakage in the pipeline in real time, while also overcoming the technical problem in the prior art that requires personnel to hold the natural gas leak detector for a long time.

[0035] On the other hand, after adopting the temperature sensor 5, the working temperature of the audio transmitter can be monitored to avoid explosion problems caused by excessive temperature and excessive concentration.

[0036] The natural gas concentration detection module 4 can be built-in or externally placed in the transmitter housing 1 to form a whole, wherein the gas receiving part of the natural gas detection module must be exposed to enable gas concentration detection.

[0037] Furthermore, the natural gas concentration detection module 4 includes a gas receiving sensing module 401 (such as a gas sensor), and a mounting base 402 connected to the gas receiving sensing module, and the mounting base 402 can be detachably mounted on the transmitter housing 1 .

[0038] In some embodiments, the mounting base 402 may be a round rod-shaped structure, which is mounted on the transmitter housing by means of threaded connection or plug-in connection.

[0039] In some embodiments, an air guide valve 8 is also provided on the transmitter housing 1 .

[0040] In some embodiments, the transmitter housing 1 is further provided with a lifting handle 7. The provision of the lifting handle 7 facilitates the overall lifting of the audio transmitter, the movement and installation of the audio transmitter, and facilitates the installation and removal of the upper cover and the lower housing. The lifting handle can also be installed on the upper cover by means of a threaded connection.

[0041] Furthermore, the transmitter shell 1 includes a lower shell 101 and an upper cover 102 arranged on the lower shell 101. The mating surfaces of the upper cover 102 and the lower shell 101 are also provided with a step structure so that the two can be engaged. A sealing ring can also be provided to ensure the sealing after assembly and play a role in waterproofing and dustproofing; the natural gas concentration detection module 4 is installed on the upper cover 102, the audio module 2 is installed in the lower shell 101, and the temperature sensor 5 is installed on the lower inner side of the upper cover 102 through a plurality of mounting columns 6.

[0042] Furthermore, a connecting tube 9 is provided on the bottom plate of the lower shell 101, and both ends of the connecting tube 9 extend to the inside and outside of the lower shell 101 respectively. The audio module 2 is detachably installed on the inner connecting tube 9, and the conversion joint 3 is detachably connected to the outer connecting tube 9. The conversion joint 3 and the audio module 2 are both connected to the connecting tube through threads. After the conversion joint 3 is installed on the pipe, the audio module 2 at this location can emit sound wave signals into the pipe.

[0043] The connecting tube 9 is a connecting structure on the lower shell 101. This arrangement facilitates simultaneous connection of the audio module and the conversion connector.

[0044] In some embodiments, a plurality of peripheral ridges 10 are provided at intervals on the outer circumference of the lower shell 101 , which can not only enhance the strength of the lower shell 101 , but also increase the surface area of ​​the lower shell 101 , thereby facilitating heat dissipation. Example 2

[0045] This embodiment provides a pipeline detection and locating instrument with the audio transmitter in Embodiment 1, which includes a receiving end and a transmitting end, wherein the receiving end includes a receiving host and a signal receiver connected to the receiving host, Figure 4 As shown, the transmitting end includes a transmitting host 11, and an audio transmitter connected to the transmitting host 11 through a signal transmission line, and the signal receiver is used to receive the sound wave signal emitted by the audio transmitter. The natural gas concentration detection module 4 and the temperature sensor 5 on the audio transmitter transmit information to the transmitting host 11 through the signal transmission line, and can detect whether there is a gas leak in the pipeline during installation and use.

[0046] When in use, the audio transmitter is installed at the release valve of the gas pipeline, and a specific sound wave signal is modulated by the transmitter to be transmitted into the gas PE pipeline. When continuous work is carried out after the installation is completed, due to changes in natural gas pressure or other abnormalities, natural gas leakage occurs. At this time, the audio transmitter will continue to monitor. When the natural gas concentration detection module on it detects that the methane concentration is higher than the set warning value, such as 3VoL%, the detection signal will be transmitted to the transmitter host to issue an alarm prompt; when the detected methane concentration reaches the lower explosion limit of 5Vol%, the detection signal will be transmitted to the transmitter host to cut off the power output and issue an alarm prompt, which can respond quickly to allow staff to handle it and prevent it before it happens.

[0047] Specifically, the audio module, temperature sensor, and natural gas concentration monitoring module are connected in parallel, and are all connected to the joint of the upper cover through cables, and then transmitted to the transmitting host through signal transmission lines. A control module is provided in the transmitting host, the audio transmitter is responsible for sending and receiving data, and the audio module 2 can receive instructions from the host.

[0048] The temperature sensor 5 detects the temperature in real time, and the temperature information is fed back to the transmitting host. The transmitting host adjusts the working state according to the temperature. For example, when the temperature is too high, the transmitting host sends a command to reduce power or stop working to the audio module.

[0049] The natural gas concentration monitoring module 4 detects the natural gas concentration in real time, and the concentration information will be fed back to the transmitting host, and the transmitting host will give a prompt. If the concentration exceeds the standard, the transmitting host can send an instruction to turn off the power output of the audio module.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An audio transmitter, characterized in that: It comprises a transmitter shell, wherein an audio module is arranged inside the transmitter shell, and a conversion joint connected to the transmitter shell is arranged outside the transmitter shell; a detachable natural gas concentration detection module is also arranged inside or outside the transmitter shell.

2. The audio transmitter according to claim 1, characterized in that A temperature sensor is also arranged in the transmitter housing.

3. The audio transmitter according to claim 1, characterized in that The natural gas concentration detection module includes a gas receiving sensing module and a mounting base connected to the gas receiving sensing module, and the mounting base can be detachably mounted on the transmitter housing.

4. The audio transmitter according to claim 1, characterized in that The launcher housing is also provided with an air guide valve.

5. The audio transmitter according to claim 1, characterized in that The transmitter housing is also provided with a lifting handle.

6. The audio transmitter according to claim 1, characterized in that The transmitter shell includes a lower shell and an upper cover arranged on the lower shell, and a step structure is also provided at the mating surface of the upper cover and the lower shell; the natural gas concentration detection module is installed above or below the upper cover, and the audio module is installed in the lower shell.

7. The audio transmitter according to claim 6, characterized in that A connecting tube is provided on the bottom plate of the lower shell, and two ends of the connecting tube extend toward the inside and outside of the lower shell respectively. The audio module is detachably mounted on the inner connecting tube, and the conversion connector is detachably connected to the outer connecting tube.

8. The audio transmitter according to claim 6, characterized in that The outer periphery of the lower shell is also provided with a plurality of peripheral convex strips at intervals.

9. A pipeline detection and locating instrument having the audio transmitter according to any one of claims 1 to 8, characterized in that: It includes a receiving end and a transmitting end, the receiving end includes a receiving host and a signal receiver connected to the receiving host, the transmitting end includes a transmitting host and an audio transmitter connected to the transmitting host, and the signal receiver is used to receive the sound wave signal emitted by the audio transmitter.

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