Underground gas pipeline detection pile and use method

Abstract

The invention discloses a buried gas pipeline detection pile and a use method. The upper part of a main connecting shaft is connected with a sensor protection device; the fixed base is connected to the bottom of the main connecting shaft; the solar cell is arranged above the sensor protection device; a side face strip-shaped groove is formed in the side face of the main connecting shaft. A light hydrocarbon concentration sensor, a far infrared flame sensor, an alarm device, a GPS positioner and a temperature sensor are arranged in the sensor protection device. The light hydrocarbon concentration sensor, the far infrared flame sensor and the alarm device are electrically connected with the solar cell; the sensitivity of the light hydrocarbon concentration sensor is the lower limit of 1% alkane combustible concentration. According to the invention, the condition of the underground gas pipeline can be monitored in real time, the leakage site can be accurately positioned, the concentration change of the leaked gas can be detected, and the collected data can be timely transmitted to the master control center, so that corresponding management and control measures can be conveniently formulated, the investment of human resources is reduced, the leakage detection time is shortened, and the gas leakage repair efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline leakage detection, and in particular relates to a buried gas pipeline detection pile and a use method thereof. Background Art

[0002] At present, in the market, human inspection is generally used to monitor the leakage of buried gas pipelines. However, human inspection is limited by weather, environment, subjective factors of patrolmen and other issues, resulting in low efficiency of gas pipeline leakage monitoring and excessively high labor costs. When a pipeline leaks, its diffusion law cannot be monitored in real time after the leak because the pipeline is buried underground, and it is difficult to determine the diffusion range and location of the leaked gas. For this reason, this invention will provide a gas pipeline leakage monitoring pile for buried gas pipelines that can replace human inspection, solve the problem of locating buried gas pipeline leaks, and monitor, warn and analyze the diffusion range of gas leakage laws.

[0003] The patent publication number is CN218212636U, and the name is a patent application for a pipe network gas monitoring device, which includes a pile body shell, the inner cavity of the pile body shell is provided with a main board and a power supply for the main board; the main board is integrated with a combustible gas laser detection unit; the pile body shell is also provided with a gas laser probe, which is connected to the combustible gas laser detection unit and is used to transmit a reflected laser signal to the combustible gas laser detection unit. Although this patent application can monitor the combustible gas concentration of the urban gas pipe network around the clock and uninterruptedly, it cannot timely alarm according to the on-site environmental conditions, and timely carry out emergency repairs at the accurate location on the site while evacuating personnel. Summary of the invention

[0004] In order to overcome the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide an underground gas pipeline detection pile and a method of use to solve the problems of difficulty in monitoring gas pipeline leakage during patrol inspections, high monitoring costs, and difficulty in locating gas leakage diffusion.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A buried gas pipeline detection pile, comprising:

[0007] A main connecting shaft, the upper portion of which is connected to a sensor protection device;

[0008] A fixed base, the fixed base being connected to the bottom of the main connecting shaft;

[0009] A solar cell, wherein the solar cell is arranged above the sensor protection device;

[0010] Among them, a side strip groove is opened on the side of the main connecting shaft, and a light hydrocarbon concentration sensor, a far-infrared flame sensor, an alarm device, a GPS locator and a temperature sensor are arranged in the sensor protection device; the light hydrocarbon concentration sensor, the far-infrared flame sensor and the alarm device are all electrically connected to the solar cell; the sensitivity of the light hydrocarbon concentration sensor is 1% of the lower limit of the flammable concentration of alkanes; an outer protective shell is arranged on the main connecting shaft, and the outer protective shell includes a ring sleeved on the main connecting shaft, and a supporting foot is connected to the ring.

[0011] Optionally, a positioning groove is provided on the upper portion of the main connecting shaft, and the solar cell is engaged with the main connecting shaft through the positioning groove.

[0012] Optionally, an external thread is provided on an upper portion of the main connecting shaft, a threaded through hole is provided inside the sensor protection device, and the main connecting shaft passes through an inner hole of the sensor protection device and is connected to the sensor protection device via threads.

[0013] Optionally, the bottom of the main connecting shaft is connected to the fixed base via threads.

[0014] Optionally, a connecting rod with a slot is connected to the bottom of the ring, a through hole is opened at the bottom of the connecting rod, a through hole is opened at the top of the supporting foot, and the top of the supporting foot is connected to the connecting rod through a connecting shaft.

[0015] Optionally, the number of the supporting feet is three, and they are equidistantly arranged along the annular direction of the ring.

[0016] Optionally, a signal transmitter is provided on the top of the solar cell, and the signal transmitter is electrically connected to the light hydrocarbon concentration sensor.

[0017] Optionally, the solar cell includes a solar panel and an energy storage device, and the solar panel is in the shape of a hollow frustum.

[0018] Optionally, the fixed base is a conical plug.

[0019] The method for using the buried gas pipeline detection pile comprises the following steps:

[0020] Fix the fixed base in the testing pile burial pit;

[0021] Open the support feet to keep the sensor protection device in a horizontal state, and record the burial depth through the side strip groove;

[0022] When the light hydrocarbon concentration sensor detects that the alkane concentration of the leaked oil is greater than 10% of the lower limit of the flammable concentration of alkanes and the continuous detection time is greater than 60s, or the detection concentration is greater than or equal to 100% of the lower limit of the flammable concentration and the continuous detection time is greater than 20s, the alarm device is triggered;

[0023] When the monitoring value of the far-infrared flame sensor exceeds the set threshold and the continuous detection time is greater than 20s, or the monitoring value of the temperature sensor exceeds the set threshold and the continuous detection time is greater than 20s, the alarm device is triggered;

[0024] The trigger alarm device transmits the alarm information to the main control center, and the alarm information includes GPS location information, the monitoring value of the light hydrocarbon concentration sensor, the monitoring value of the far-infrared flame sensor, the monitoring value of the temperature sensor and the duration of the monitoring value.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention can monitor the status of underground gas pipelines in real time, and can monitor the concentration of methane leakage when a buried gas pipeline leaks; it can accurately locate the leakage location and detect the change in the concentration of the leaked gas and transmit the collected data to the main control center of the responsible company in a timely manner, so as to facilitate the formulation of corresponding control measures for its gas transmission leakage status, greatly reduce the input of human resources, shorten the leakage detection time, and improve the efficiency of gas leakage repair work. The present invention is connected with a far-infrared flame sensor, which can monitor in real time whether there is a high-temperature fire source around the pipeline. When the far-infrared flame sensor senses the temperature rise around the pipeline, when it is about to exceed the limit temperature of gas explosion, it will trigger the alarm device, the warning light will remind, and the siren will disperse the crowd to reduce the consequences of the accident.

[0027] Furthermore, the sensor protection device of the present invention is provided with a GPS locator, which can promptly and accurately perform emergency repair work according to the position of the detection pile.

[0028] Furthermore, the sensor protection device of the present invention is provided with a temperature sensor, which can prevent the far-infrared flame sensor from failing to detect non-open flames or damage and thus failing to alarm, and can also prevent the far-infrared flame sensor from falsely alarming.

[0029] Furthermore, the present invention is respectively connected to an outer protective shell and a fixed base. In addition, the outer protective shell of the monitoring pile is provided with a supporting foot slot, and the supporting foot is rotatable, so that the monitoring pile has higher stability. The present invention can be deployed in the working area for a long time, not only can it adapt to a variety of complex working conditions, but also has a long service life and reduces the investment of manpower and financial resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are for explanation purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. In the drawings:

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 is a cross-sectional view of a solar cell of the present invention;

[0033] Figure 3 A top view of a solar cell according to the present invention;

[0034] Figure 4 This is a schematic diagram of the main connecting shaft structure of the present invention;

[0035] Figure 5 This is a schematic diagram of the outer protective shell structure of the present invention;

[0036] Figure 6 This is a front view of the outer protective shell of the present invention;

[0037] Figure 7 This is a top view of the outer protective shell of the present invention;

[0038] Among them, 1. outer protective shell; 2. conical plug; 3. main connecting shaft; 4. sensor protection device; 5. light hydrocarbon concentration sensor; 6. far-infrared flame sensor; 7. alarm device; 8. signal transmitter; 9. solar cell. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0040] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0042] The present invention is described in detail below with reference to the accompanying drawings.

[0043] like Figure 1 As shown, a buried gas pipeline detection pile of the present invention includes an outer protective shell 1, a main connecting shaft 3, a sensor protection device 4, a light hydrocarbon concentration sensor 5, a far-infrared flame sensor 6, an alarm device 7, a signal transmitter 8 and a solar cell 9.

[0044] Two positioning grooves are provided on the top side of the main connecting shaft 3, and the solar cell 9 is clamped on the top of the main connecting shaft 3 through the positioning grooves. Optionally, a thread is provided on the top side of the main connecting shaft 3, and the solar cell 9 is connected to the main connecting shaft 3 through the thread.

[0045] The upper portion of the main connecting shaft 3 is provided with an external thread, the interior of the sensor protection device 4 is provided with a through hole with a thread, and the main connecting shaft 3 passes through the inner hole of the sensor protection device 4 and is connected to the sensor protection device 4 through the thread.

[0046] A side strip groove is provided on the middle side of the main connecting shaft 3 for observing the burial depth.

[0047] Preferably, the upper diameter of the main connecting shaft 3 is larger than the lower diameter.

[0048] The fixed base 2 is connected to the bottom of the main connecting shaft 3 by threads. Specifically, the fixed base 2 is a conical plug for inserting into the soil for fixation.

[0049] The outer protective shell 1 includes a collar sleeved on the main connecting shaft 3, and the main connecting shaft 3 passes through the collar and is connected to the collar by a thread. A connecting rod with a slot is connected to the bottom of the collar, and a through hole is provided at the bottom of the connecting rod. A through hole is provided at the top of the supporting foot, and the top of the supporting foot is connected to the connecting rod through a connecting shaft. The supporting foot can rotate around the connecting rod and be stored in the slot of the connecting rod, which is convenient for carrying and installation.

[0050] Specifically, the number of the supporting legs is three, and they are equidistantly arranged along the circumferential direction of the ring.

[0051] Preferably, the collar is welded to the connecting rod.

[0052] The sensor protection device 4 is provided with a light hydrocarbon concentration sensor 5, a far infrared flame sensor 6, an alarm device 7, a GPS locator and a temperature sensor; the light hydrocarbon concentration sensor 5, the far infrared flame sensor 6 and the alarm device 7 are all electrically connected to the solar cell 9.

[0053] A signal transmitter is arranged on the top of the solar cell 9, and the signal transmitter is electrically connected to the light hydrocarbon concentration sensor 5. The solar cell 9 includes a solar panel and an energy storage device, and specifically, the solar panel is in the shape of a hollow truncated cone.

[0054] The solar cell 9 can fully receive sunlight to provide power. In addition, its special umbrella-like structure can block rain in rainy weather and protect the sensor protection device 4 below from being eroded by rain. The solar cell 9 has a through hole inside for installing the signal transmitter 8.

[0055] Specifically, the signal transmitter 8 can be wirelessly connected to the Internet and transmit the information collected by the light hydrocarbon concentration sensor 5 and the far infrared flame sensor 6 to the main control center of the responsible company in real time. The light hydrocarbon concentration sensor 5 can monitor the alkane concentration of the leaked oil, and the sensitivity of the light hydrocarbon concentration sensor 5 is the lower limit of the flammable concentration of 1% alkane.

[0056] The buried gas pipeline detection pile of the present invention comprises the following steps when used:

[0057] Determine the location for setting the monitoring pile, dig a 0.5-meter-deep burial pit, and place the fixed base 2 in the burial pit of the monitoring pile.

[0058] Adjust the outer protective shell 1 of the monitoring pile, open the support legs, arrange the three support legs in a triangular cone shape, insert each support leg into the soil around the burial pit, fix the monitoring pile so that it is perpendicular to the ground, and record the burial depth;

[0059] Fill the monitoring pile burial pit to prevent the monitoring pile from shifting.

[0060] Turn on the signal transmitter 8 and the solar cell 9 power supply, connect to the main control center of the gas company wirelessly, check whether the line is accessible, and debug the signal reception of each sensor;

[0061] The alarm parameters are set, wherein when the light hydrocarbon concentration sensor 5 detects that the alkane concentration of the leaked oil is greater than 10% of the lower limit of the flammable concentration of alkanes and the continuous detection time is greater than 60s, or the detection concentration is greater than or equal to 100% of the lower limit of the flammable concentration and the continuous detection time is greater than 20s, the alarm device 7 is triggered, the warning light is used to remind, and the siren is used to disperse the crowd, thereby reducing the consequences of the accident and allowing the company to carry out timely emergency repair and maintenance work on the accident site.

[0062] When the monitoring value of the far-infrared flame sensor 6 exceeds the set threshold and the continuous detection time is greater than 20s or the monitoring value of the temperature sensor exceeds the set threshold and the continuous detection time is greater than 20s, the alarm device 7 is triggered.

[0063] The trigger alarm device 7 transmits the alarm information to the main control center, and the alarm information includes GPS location information, the monitoring value of the light hydrocarbon concentration sensor 5, the monitoring value of the far-infrared flame sensor 6, the monitoring value of the temperature sensor and the duration of the monitoring value.

[0064] When not in operation, the outer protective shell 1, the fixed base 2, the sensor protection device 4 and the solar cell 9 are disassembled from the main connecting shaft 3 for recycling and storage, which has a good storage and transportation effect;

[0065] The present invention can accurately locate the leakage point of the buried gas pipeline and the diffusion trend of the leaked oil, greatly reducing the investment in manpower inspection of the pipeline, and can adapt to complex and severe terrain environments; the invention has good monitoring effect, a wide range of applications, stronger applicability, convenient storage and transportation, and has excellent application effect on buried gas pipeline leakage monitoring.

[0066] Unless otherwise specified, the device elements involved in the above embodiments are all conventional device elements, and the structural settings, working modes or control modes involved are all conventional settings, working modes or control modes in the art unless otherwise specified.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in the field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A buried gas pipeline detection pile, It is characterized in that include: A main connecting shaft (3), wherein a sensor protection device (4) is connected to the upper portion of the main connecting shaft (3); A fixed base (2), the fixed base (2) being connected to the bottom of the main connecting shaft (3); A solar cell (9), wherein the solar cell (9) is arranged above the sensor protection device (4); The main connecting shaft (3) is provided with a side strip groove, and the sensor protection device (4) is provided with a light hydrocarbon concentration sensor (5), a far-infrared flame sensor (6), an alarm device (7), a GPS locator and a temperature sensor; the light hydrocarbon concentration sensor (5), the far-infrared flame sensor (6) and the alarm device (7) are all electrically connected to the solar cell (9); the sensitivity of the light hydrocarbon concentration sensor (5) is 1% of the lower limit of the flammable concentration of alkanes; the main connecting shaft (3) is provided with an outer protective shell (1), and the outer protective shell (1) includes a sleeve ring mounted on the main connecting shaft (3), and the sleeve ring is connected to a supporting foot.

2. A buried gas pipeline detection pile according to claim 1, It is characterized in that A positioning groove is provided on the upper part of the main connecting shaft (3), and the solar cell (9) is clamped to the main connecting shaft (3) via the positioning groove.

3. A buried gas pipeline detection pile according to claim 2, It is characterized in that The upper portion of the main connecting shaft (3) is provided with an external thread, the interior of the sensor protection device (4) is provided with a through hole with a thread, and the main connecting shaft (3) passes through the inner hole of the sensor protection device (4) and is connected to the sensor protection device (4) via the thread.

4. The buried gas pipeline detection pile according to claim 1, It is characterized in that The bottom of the main connecting shaft (3) is connected to the fixed base (2) via threads.

5. The buried gas pipeline detection pile according to claim 1, It is characterized in that A connecting rod with a slot is connected to the bottom of the collar, a through hole is opened at the bottom of the connecting rod, a through hole is opened at the top of the supporting foot, and the top of the supporting foot is connected to the connecting rod through a connecting shaft.

6. The buried gas pipeline detection pile according to claim 1, It is characterized in that The number of the supporting feet is three, and they are equidistantly arranged along the annular direction of the collar.

7. The buried gas pipeline detection pile according to claim 1, It is characterized in that A signal transmitter is arranged on the top of the solar cell (9), and the signal transmitter is electrically connected to the light hydrocarbon concentration sensor (5).

8. The buried gas pipeline detection pile according to claim 1, It is characterized in that The solar cell (9) comprises a solar panel and an energy storage device, and the solar panel is in the shape of a hollow truncated cone.

9. The buried gas pipeline detection pile according to claim 1, It is characterized in that The fixed base (2) is a conical plug.

10. A method for using a buried gas pipeline detection pile according to any one of claims 1 to 9, It is characterized in that The following steps are involved: Fixing the fixed base (2) in the detection pile burying pit; The supporting feet are opened to keep the sensor protection device (4) in a horizontal state, and the burial depth is recorded through the side strip grooves; When the light hydrocarbon concentration sensor (5) detects that the alkane concentration of the leaked oil product is greater than 10% of the lower limit of the flammable concentration of the alkane and the continuous detection time is greater than 60 seconds, or the detection concentration is greater than or equal to 100% of the lower limit of the flammable concentration and the continuous detection time is greater than 20 seconds, the alarm device (7) is triggered; When the monitoring value of the far-infrared flame sensor (6) exceeds the set threshold value and the continuous detection time is greater than 20 seconds, or the monitoring value of the temperature sensor exceeds the set threshold value and the continuous detection time is greater than 20 seconds, the alarm device (7) is triggered; The trigger alarm device (7) transmits alarm information to the main control center, wherein the alarm information includes GPS location information, the monitoring value of the light hydrocarbon concentration sensor (5), the monitoring value of the far-infrared flame sensor (6), the monitoring value of the temperature sensor and the duration of the monitoring value.

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