Internal detection device for buried long-distance fuel gas vertical pipe

Abstract

The utility model discloses a buried long-distance gas riser internal detection device, and particularly relates to the technical field of gas riser detection, the buried long-distance gas riser internal detection device comprises a gas riser and a detection box installed on one side of the gas riser, one side of the gas riser close to the detection box is provided with a detection window, and one side of the detection box close to the gas riser is fixedly connected with a sealing gasket. And a sealing cover plate is arranged on one side of the detection box. According to the utility model, firstly, the pressure sensor is used for monitoring the gas pressure change condition in the gas vertical pipe in real time, and the flow sensor can be used for accurately measuring the flowing speed and the flow of gas in a pipeline; according to the invention, acoustic emission signals generated by abnormal conditions such as leakage and crack propagation in the gas pipeline can be sensitively captured through the arranged acoustic emission sensor, and potential damage and leakage hidden dangers in the pipeline can be found in time by analyzing the signals, so that the effect of detecting the interior of the gas vertical pipe is realized, and the detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas riser detection technical field more specifically, the utility model relates to the buried long distance gas riser internal detection device. BACKGROUND

[0002] With the continuous expansion of city gas supply network, the buried long distance gas riser as the key infrastructure of city gas transmission, its safe operation is directly related to the life and property safety of urban residents and social stability, however, the long-term buried gas riser in the soil stress, geological activity, gas medium corrosion and third party construction damage under the influence of a variety of factors, prone to pipeline corrosion, crack, leakage, blockage and other problems, once gas leakage not only will cause energy waste, more likely to cause fire, explosion and other serious safety accidents, bring incalculable loss;

[0003] The existing gas riser detection technology has many deficiencies, part of the detection method needs to carry out large-scale excavation to gas pipeline, not only the construction cost is high, still can cause serious damage to city traffic, afforestation and other public facilities, greatly influence the normal life of residents, and some non-excavation detection technology, such as ground detection radar, infrared thermal imaging, limited by detection principle, only can obtain the approximate information of pipeline outside, difficult to accurately detect the pressure change, flow fluctuation, small leakage point and pipeline internal structure damage and other key conditions in the pipeline, therefore, a buried long distance gas riser internal detection device is provided. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a buried long distance gas riser internal detection device to solve the problems in the above background art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a buried long distance gas riser internal detection device, including gas riser and the detection box installed in the one side of gas riser, the one side of gas riser close to detection box is equipped with detection window, the detection device is connected with the inside of gas riser through detection window, and the inside of gas riser is conveniently detected, the one side of detection box is fixedly connected with sealing pad close to gas riser, the arc structure can better fit the outer surface profile of gas riser, so that the sealing pad is closely attached to the wall of gas riser, good sealing effect is formed, gas leakage is prevented, the one side of detection box is provided with sealing cover plate, the surface of sealing cover plate is provided with solar panel, the equipment in the inside of detection box is conveniently installed, maintained and overhauled through sealing cover plate, solar energy can be converted into electric energy and stored in storage battery through solar panel, and green, sustainable energy supply is provided for detection device;

[0006] A plurality of mounting clamps are symmetrically fixedly connected to the two sides of the detection box, one end of the mounting clamps is provided with a fastening screw, and the mounting clamps can firmly fix the detection box on the gas vertical pipe by tightening the fastening screw, so that the detection device cannot be loosened or fallen off due to external force during long-term use, and the convenience and stability of device installation are improved; the position corresponding to the detection window of the sealing cover plate is provided with a pressure sensor, a flow sensor and a supporting rod, and the middle part of the supporting rod is fixedly connected with an electric push rod; the pressure sensor is used for monitoring the gas pressure change in the gas vertical pipe in real time, and the flow sensor can accurately measure the flow speed and flow size of the gas in the pipeline; the running state of the gas pipeline and whether there is leakage and other abnormal conditions can be judged by detecting the data change.

[0007] The supporting rod is provided with an acoustic emission sensor on the two sides of one end thereof, and the moving end of the electric push rod is fixedly connected with a stable pressing block; the middle part of the detection box is provided with a storage battery, a wireless transceiver, a mainboard and a positioner; the acoustic emission sensor can sensitively capture the acoustic emission signals generated by abnormal conditions such as leakage and crack propagation in the gas pipeline; potential damage and leakage hazards in the pipeline can be found in time by analyzing these signals; the stable pressing block is abutted on the wall of the gas vertical pipe by starting the electric push rod, so that the stability of the acoustic emission sensor is improved, thereby helping the acoustic emission sensor to more effectively receive the acoustic emission signals and improving the sensitivity of leakage and damage detection; the mainboard can receive the data collected by the pressure sensor, the flow sensor and the acoustic emission sensor in real time, analyze and process the data by using the built-in algorithm, judge whether the running state of the gas vertical pipe is normal, and the positioner can obtain the geographic position information of the detection device, so that the management personnel can accurately master the installation position and distribution of the detection device; the wireless transceiver can transmit the processed data to the remote monitoring center in real time and receive the control instructions sent by the remote monitoring center, so as to realize the remote control and management of the detection device.

[0008] Preferably, the mounting clamps are located on the two sides of the gas vertical pipe, and the fastening screw is located on the side of the gas vertical pipe away from the detection box, so that the detection box can be conveniently installed and fixed by the mounting clamps and the fastening screw.

[0009] Preferably, the side wall of the detection box close to the sealing gasket is provided in an arc-shaped structure, the sealing gasket is closely attached to the wall of the gas vertical pipe, the sealing strength of the detection box and the gas vertical pipe is improved, and gas leakage is avoided.

[0010] Preferably, one end of the pressure sensor, the supporting rod and the flow sensor extends to the inside of the gas vertical pipe through the detection window, so that the pressure and flow in the gas vertical pipe can be conveniently detected.

[0011] Preferably, the solar panel and the battery are electrically connected, and the main board and the positioner, the wireless transceiver, the battery, the flow sensor, the pressure sensor, the electric push rod and the acoustic emission sensor are electrically connected, so that solar energy can be converted into electric energy and stored in the battery to provide a green and sustainable energy supply for the detection device.

[0012] Preferably, the stable pressing block is tightly attached to one side wall of the inner cavity of the gas riser, one side wall of the stable pressing block is provided in an arc-shaped structure, and the supporting rod is arranged between the flow sensor and the pressure sensor, so that the stability of the acoustic emission sensor can be improved, and the sensitivity of detection can be improved.

[0013] Preferably, the supporting rod, the flow sensor and the pressure sensor are provided with sealing rings at positions penetrating the middle wall of the detection box, and the sealing cover plate is fixed to one side of the detection box through rivets, so that the sealing rings can effectively prevent gas from leaking from the perforations of the detection box, and the sealing property and safety of the detection device are further enhanced.

[0014] The technical effects and advantages of the utility model are as follows:

[0015] 1. The utility model discloses a detection device for gas riser, which comprises a detection box, a detection window is arranged on one side of the detection box, a flow sensor and a pressure sensor are arranged in the detection box, a supporting rod is arranged between the flow sensor and the pressure sensor, an acoustic emission sensor is arranged on the supporting rod, a positioner is arranged on the detection box, a wireless transceiver is arranged on the detection box, a battery is arranged in the detection box, a main board is arranged in the detection box, an electric push rod is arranged on the main board, and a sealing gasket is arranged between the detection window and the wall of the gas riser.

[0016] 2. The utility model also comprises a stable pressing block arranged on the electric push rod, a sealing cover plate is arranged on the detection window, and a sealing gasket is arranged between the sealing cover plate and the wall of the gas riser.

[0017] Through the mutual influence of the above-mentioned multiple effects, the gas pressure change can be detected, the flow speed and the flow size can be detected, the acoustic emission signals generated by the abnormal conditions such as leakage and crack expansion in the gas pipeline can be sharply captured through the set acoustic emission sensor, the potential damage and leakage hidden danger in the pipeline can be found in time, and the detection of the gas vertical pipe is realized, and the detection accuracy is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model.

[0019] Figure 2 It is a split structure schematic view of the utility model.

[0020] Figure 3 It is a cross-section structure schematic view of the utility model.

[0021] Figure 4 It is another angle structure schematic view of the utility model detection box.

[0022] Figure 5 It is a cross-section structure schematic view of the utility model detection box.

[0023] The figure mark is: 1, gas vertical pipe;2, detection window;3, detection box;4, sealing cover plate;5, solar panel;6, installation hoop;7, fastening screw;8, sealing gasket;9, support rod;10, electric push rod;11, stable pressure block;12, acoustic emission sensor;13, flow sensor;14, pressure sensor;15, battery;16, wireless transceiver;17, mainboard;18, positioner. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] As the accompanying drawings Figures 1-5The buried long-distance gas riser internal detection device shown, including gas riser 1 and install detection box 3 on one side of gas riser 1, gas riser 1 is close to the side of detection box 3 is provided with detection window 2, through detection window 2 convenient detection device and gas riser inside establish connection channel, convenient to gas riser 1 inside detection, detection box 3 close to the side of gas riser 1 is fixedly connected with sealing pad 8, the arc structure can better fit the outer surface profile of gas riser 1, so that sealing pad 8 and the wall of gas riser 1 closely, form good sealing effect, prevent gas leakage, one side of detection box 3 is provided with sealing cover plate 4, the surface of sealing cover plate 4 is provided with solar panel 5, through sealing cover plate 4 convenient to the equipment inside detection box 3 is installed, maintained and overhauled, through solar panel 5 can convert solar energy into electrical energy and stored in battery 15, provide green, sustainable energy supply for detection device;

[0026] The two sides of detection box 3 are fixedly connected with a plurality of installation clamps 6, one end of installation clamp 6 is inserted with fastening screw 7, through tightening fastening screw 7, installation clamp 6 can firmly fix detection box 3 on gas riser 1, ensure that the detection device will not loosen, fall off due to external force in the long-term use process, improve the convenience and stability of device installation, sealing cover plate 4 and detection window 2 corresponding position is provided with pressure sensor 14, flow sensor 13, support rod 9, the middle part of support rod 9 is fixedly connected with electric push rod 10, through pressure sensor 14 for real-time monitoring of gas pressure change in gas riser 1, flow sensor 13 can accurately measure the flow velocity and flow size of gas in pipeline, through the change of detection data can judge the running state of gas pipeline, whether there is leakage and other abnormal conditions;

[0027] The one end of the support rod 9 is symmetrically provided with acoustic emission sensors 12 on both sides, the moving end of the electric push rod 10 is fixedly connected with a stable pressing block 11, the middle part of the detection box 3 is provided with a storage battery 15, a wireless transceiver 16, a mainboard 17 and a positioner 18, the acoustic emission sensors 12 can sensitively capture the acoustic emission signals generated by the abnormal conditions such as leakage and crack expansion in the gas pipeline, through the analysis of the signals, the potential damage and leakage hidden danger in the pipeline can be found in time, the electric push rod 10 is started to control the stable pressing block 11 to abut against the wall of the gas vertical pipe 1, the stability of the acoustic emission sensors 12 can be improved, so that the acoustic emission sensors 12 can more effectively receive the acoustic emission signals, the sensitivity of the leakage and damage detection is improved, the data collected by the pressure sensor 14, the flow sensor 13 and the acoustic emission sensor 12 can be received in real time through the mainboard 17, the data is analyzed and processed by using the built-in algorithm, whether the running state of the gas vertical pipe 1 is normal is judged, the positioner 18 can obtain the geographic position information of the detection device, the installation position and distribution of the detection device can be accurately mastered by the management personnel, the processed data can be transmitted to the remote monitoring center in real time by the wireless transceiver 16, and the control instructions sent by the remote monitoring center are received, so that the remote control and management of the detection device are realized.

[0028] As shown in the accompanying drawings, Figures 1-5 The installation hoop 6 is located on both sides of the gas vertical pipe 1, the fastening screw 7 is located on the side of the gas vertical pipe 1 away from the detection box 3, the side wall of the detection box 3 close to the sealing gasket 8 is provided in an arc-shaped structure, the sealing gasket 8 is closely attached to the wall of the gas vertical pipe 1, one end of the pressure sensor 14, the support rod 9 and the flow sensor 13 extends to the inside of the gas vertical pipe 1 through the detection window 2, the solar panel 5 and the storage battery 15 are electrically connected, the mainboard 17 and the positioner 18, the wireless transceiver 16, the storage battery 15, the flow sensor 13, the pressure sensor 14, the electric push rod 10 and the acoustic emission sensor 12 are electrically connected, the stable pressing block 11 is closely attached to the side wall of the inner cavity of the gas vertical pipe 1, the side wall of the stable pressing block 11 is provided in an arc-shaped structure, the support rod 9 is arranged between the flow sensor 13 and the pressure sensor 14, the support rod 9 and the flow sensor 13 and the pressure sensor 14 are provided with sealing rings at the positions penetrating the middle wall of the detection box 3, the sealing cover plate 4 is fixed on one side of the detection box 3 through rivets, the sealing ring can effectively prevent gas from leaking from the perforations of the detection box 3, and the sealing property and safety of the detection device are further enhanced.

[0029] The working principle of the utility model is: when in use, the installation hoop 6 and the fastening screw 7 are fixed on the gas vertical pipe 1, and one end of the support rod 9 and the pressure sensor 14 and the flow sensor 13 are inserted into the inside of the gas vertical pipe 1 through the detection window 2, and the sealing gasket 8 is used, so that the firm installation and sealing of the detection box 3 are realized;

[0030] The electric push rod 10 is started by an external controller to control the stable pressing block 11 to be attached to the wall of the gas vertical pipe 1, improve the stability of the acoustic emission sensor 12, the gas pressure and flow data are monitored in real time through the flow sensor 13 and the pressure sensor 14, the acoustic emission signals generated when the abnormal conditions such as leakage and crack expansion occur in the gas vertical pipe 1 are captured through the acoustic emission sensor 12, the received data is analyzed and processed by the mainboard 17, and the detection data can be sent to the remote monitoring center through the wireless transceiver 16, so that the detection function is realized.

[0031] When the detection box 3 is located on the ground, the solar panel 5 can absorb solar energy and convert it into electric energy, which is stored in the storage battery 15, so that the detection device can continuously and stably operate and the service life is improved; when the detection box 3 is located underground, the solar panel 5 can be installed on the ground and electrically connected with the storage battery 15 in the detection box 3 through an electric wire.

[0032] The above only describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A buried long-distance gas riser internal detection device, comprising a gas riser (1) and a detection box (3) installed on one side of the gas riser (1), characterized in that: The detection window (2) is arranged on one side of the gas vertical pipe (1) close to the detection box (3), the sealing gasket (8) is fixedly connected to one side of the detection box (3) close to the gas vertical pipe (1), the sealing cover plate (4) is arranged on one side of the detection box (3), and the surface of the sealing cover plate (4) is provided with a solar panel (5). A plurality of installation clamps (6) are symmetrically fixedly connected to the two sides of the detection box (3), a fastening screw (7) is inserted into one end of the installation clamp (6), the pressure sensor (14), the flow sensor (13) and the supporting rod (9) are arranged at positions corresponding to the sealing cover plate (4) and the detection window (2), and the middle part of the supporting rod (9) is fixedly connected with an electric push rod (10). The sound emission sensor (12) is symmetrically arranged on the two sides of one end of the supporting rod (9), the moving end of the electric push rod (10) is fixedly connected with a stable pressing block (11), and the middle part of the detection box (3) is provided with a storage battery (15), a wireless transceiver (16), a mainboard (17) and a positioner (18).

2. The apparatus for internal inspection of a buried long-distance gas riser according to claim 1, characterized in that: The installation clamps (6) are located on the two sides of the gas vertical pipe (1), and the fastening screw (7) is located on the side of the gas vertical pipe (1) away from the detection box (3).

3. The apparatus according to claim 1, wherein: The side wall of the detection box (3) close to the sealing gasket (8) is arranged in an arc-shaped structure, and the sealing gasket (8) is tightly attached to the wall of the gas vertical pipe (1).

4. The apparatus according to claim 1, wherein: One end of the pressure sensor (14), the supporting rod (9) and the flow sensor (13) extends to the inside of the gas vertical pipe (1) through the detection window (2).

5. The apparatus according to claim 1, wherein: The solar panel (5) and the storage battery (15) are electrically connected, and the mainboard (17) and the positioner (18), the wireless transceiver (16), the storage battery (15), the flow sensor (13), the pressure sensor (14), the electric push rod (10) and the sound emission sensor (12) are electrically connected.

6. The apparatus of claim 1, wherein: The stable pressing block (11) is tightly attached to one side wall of the inner cavity of the gas vertical pipe (1), one side wall of the stable pressing block (11) is arranged in an arc-shaped structure, and the supporting rod (9) is arranged between the flow sensor (13) and the pressure sensor (14).

7. The apparatus according to claim 1, wherein: Sealing rings are arranged at positions where the supporting rod (9) and the flow sensor (13) and the pressure sensor (14) penetrate the middle wall of the detection box (3), and the sealing cover plate (4) is fixed on one side of the detection box (3) by rivets.

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