Monitoring device and monitoring method for gas valve well

Abstract

The invention discloses a monitoring device and a monitoring method for a gas valve well, solves the problem that impurities in the gas valve well are easy to accumulate to influence the safety of a gas pipeline and the health of workers in the prior art, and has the beneficial effects of timely monitoring and guaranteeing the safety of the workers. Comprising a supporting component which is installed on the side wall of the top side of a gas valve well and lower than a well opening. The filtering unit comprises a filtering part, and the side part of the filtering part is detachably mounted at the supporting part; the data acquisition unit comprises a combustible gas detector arranged in the gas valve well, a liquid level monitor arranged in a water sump at the bottom of the gas valve well, and a pressure sensor arranged between the supporting component and the filtering unit; the ventilation unit is mounted on the side wall of the gas valve well; and a power supply unit.

Description

Technical Field

[0001] The present invention relates to the technical field of gas valve well monitoring, and in particular to a gas valve well monitoring device and a monitoring method. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] As the scale of urban gas pipeline construction continues to expand, the number of gas valve wells is also increasing. After long-term operation, the valve wells will leak gas and accumulate gas due to corrosion, immersion, expansion and contraction, causing explosion accidents; water accumulation in the gas valve well due to rainfall and other reasons will also bring risks to maintenance personnel. In order to reduce operating risks and realize the monitoring of gas valve wells, a series of technical studies have been carried out at home and abroad.

[0004] Invention patent application CN110570630 A discloses an NB-IoT-based gas valve well early warning device and early warning method, which can collect status information including gas valve well cover displacement, gas valve well cover inclination, methane concentration and gas valve well water immersion height. Its solar panels and early warning facilities are arranged on the outer surface of the gas valve well cover. When the gas valve well is located in green belts, driveways and other areas, there is a situation where it is shielded, resulting in insufficient power supply and early warning capabilities, and the solar panels are easily damaged, limiting the scope of application of the device.

[0005] Invention patent application CN117367370 A discloses a low-power gas well intelligent monitoring method and system based on NB-IOT, which can monitor the status of gas well covers and combustible gas leakage in real time under low power consumption conditions. However, there is a situation where the use of power modules is unsustainable, and when a leakage risk occurs, it is impossible to issue an early warning to people in the surrounding area in time.

[0006] In summary, the inventors have found that the current gas valve well monitoring device has the following problems:

[0007] The gas valve well cover is equipped with an opening, and passers-by deliberately throw debris through the opening. Impurities such as leaves on the road surface can also easily enter the gas valve well through the opening. The heavier impurities can easily cause slight damage to the gas pipeline during the falling process. Over time, it is not conducive to the protection of the gas pipeline. In addition, stones and the like exist at the bottom of the gas pipeline. After the staff enter, they are easily bumped and injured. Moreover, the accumulated leaves and the like in the valve well will corrode and produce combustible gases such as methane, affecting the monitoring effect.

[0008] Although there are combustible gas detectors in the gas valve well, there are no ventilation components;

[0009] The liquid level in the gas valve well sump cannot be determined clearly, and workers who enter rashly may pose a potential threat to their health;

[0010] In addition, problems such as unsustainable power supply, insufficient early warning capabilities, and poor information transmission have led to insufficient capabilities for monitoring combustible gas leaks and liquid levels in gas valve wells, increasing potential risks. Summary of the invention

[0011] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a gas valve well monitoring device that can monitor, transmit, warn, and eliminate risks in real time, give timely alarms, and ensure the safety of staff.

[0012] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0013] A gas valve well monitoring device, comprising:

[0014] A supporting component, the supporting component is installed on the side wall of the gas valve well top and below the wellhead;

[0015] A filter unit, the filter unit comprises a filter component, and a side portion of the filter component is detachably mounted on the support component;

[0016] The data acquisition unit includes a combustible gas detector disposed in the gas valve well, a liquid level monitor disposed in a water pit at the bottom of the gas valve well, and a pressure sensor disposed between the support component and the filter unit;

[0017] A ventilation unit, the ventilation unit is installed on the side wall of the gas valve well;

[0018] A power supply unit, the power supply unit includes an equipment installation rod arranged at the side of the gas valve well, a power supply component is arranged at the equipment installation rod, and the power supply component is separately connected with the data acquisition unit and the ventilation component;

[0019] The control unit, the data acquisition unit, the ventilation unit and the power supply unit are separately connected to the control unit.

[0020] The gas valve well monitoring device as described above further comprises an alarm unit connected to the control unit;

[0021] The alarm unit includes several alarm components, each of which can correspond to a corresponding sensor. When different data exceeds the set value, the control unit respectively issues an alarm through the corresponding alarm component;

[0022] The control unit is connected to the remote terminal, through which the relevant data detected by each sensor can be checked in time. When the control unit obtains relevant data exceeding the corresponding set value, it will alarm the remote terminal so that the staff can check the information in time and perform maintenance on the gas valve well in time.

[0023] In the above-mentioned monitoring device for a gas valve well, the supporting component comprises a plurality of fixed hooks, and the plurality of fixed hooks are evenly arranged in the circumferential direction of the gas valve well. By setting the plurality of fixed hooks, it is possible to ensure that the filter unit is stably supported at the wellhead of the gas valve well;

[0024] At least two pressure sensors are provided, and the two pressure sensors are respectively provided at different fixing hooks.

[0025] In the above-mentioned gas valve well monitoring device, a plurality of hooks are arranged on the side of the filter component, and the hooks are engaged with the fixed hook body. The hooks are engaged and connected with the fixed hook body, which is convenient for not only installing the filter component, but also for disassembling the filter component.

[0026] The filter component is a filter screen, through the setting of the filter screen, impurities are filtered at the filter screen, larger particles of impurities will not fall to the bottom of the gas valve well, and unified treatment of impurities is convenient.

[0027] A gas valve well monitoring device as described above, wherein the pressure sensor is fixed to the horizontal section of the fixed hook body, and the top side of the pressure sensor is in contact with or connected to the hook;

[0028] The hook is used to set a cover body at one end connected to the pressure sensor. The cover body is snap-connected with the top side of the pressure sensor or the cover body is fixedly connected to the pressure sensor. Through the setting of the cover body, the stable connection between the hook and the pressure sensor can be guaranteed. As the weight of impurities at the filter unit increases, the stable connection between the hook and the pressure sensor is guaranteed to ensure the accuracy of the pressure sensor measurement data.

[0029] A monitoring device for a gas valve well as described above, wherein the fixed hook body is U-shaped, and the height of the side of the fixed hook body connected to the gas valve well is greater than the height of the other side, so as to ensure stable engagement between the shorter side of the hook and the lower side of the fixed hook body;

[0030] A recess is provided in the horizontal section of the fixed hook body, one side of the pressure sensor is inserted into the recess, an ear can be provided on the side of the pressure sensor, and a fastener passes through the ear opening to connect with the fixed hook body, thereby ensuring the stable setting of the pressure sensor and further improving the accuracy of the pressure sensor measurement data.

[0031] In the monitoring device for a gas valve well as described above, the combustible gas detector is installed on the top side of the gas valve well, and the combustible gas detector is arranged below the filter unit.

[0032] A monitoring device for a gas valve well as described above, wherein the ventilation unit is an embedded exhaust fan, and an exhaust pipe of the embedded exhaust fan passes through the ground into the equipment installation rod and finally passes through the equipment installation rod;

[0033] Considering that combustible gas mainly gathers on the upper side of the gas valve well when it leaks, the ventilation unit is set lower than the combustible gas detector, or the two are set side by side. The setting position of the combustible gas detector is conducive to ensuring the rapid response of the combustible gas detector.

[0034] In the gas valve well monitoring device as described above, the control unit and the alarm unit are both fixed to the outside of the equipment mounting rod;

[0035] The power supply component includes a solar panel, which is movably mounted on the equipment mounting rod so that the solar panel can rotate relative to the equipment mounting rod;

[0036] The solar cell panel is connected to a storage battery, and the storage battery is connected to the control unit to ensure the continuity of power supply.

[0037] In a second aspect, the present invention further provides a monitoring method for a gas valve well monitoring device, comprising the following contents:

[0038] During the installation of the gas valve well, a ventilation unit is installed in the gas valve well, a support component is installed on the top side wall of the gas valve well below the wellhead, a filter unit is installed through the support component, and a pressure sensor is arranged between the filter unit and the support component;

[0039] Install a combustible gas detector in the gas valve well and a liquid level monitor in the water pit at the bottom of the gas valve well;

[0040] The combustible gas detector detects the combustible gas concentration data in the gas valve well and sends it to the control unit. The control unit compares the combustible gas concentration data with the combustible gas set value. If the combustible gas concentration data exceeds the combustible gas set value, the control unit controls the ventilation unit to start working;

[0041] The liquid level monitor detects the liquid level data in the water pit of the gas valve well and sends it to the control unit. The control unit compares the liquid level data with the liquid level data set value. If the liquid level data is greater than the liquid level data set value, the control unit will alarm;

[0042] The pressure sensor detects the pressure of impurities acting on the support component at the filter unit, and the control unit compares the pressure acting on the support component with the pressure setting value. If the pressure acting on the support component is greater than the pressure setting value, the control unit will alarm.

[0043] The beneficial effects of the present invention are as follows:

[0044] 1) The monitoring device of the present invention is provided with a filter unit for filtering impurities to prevent excessive large impurities from falling into the gas valve well. The pressure of the impurities at the filter component acting on the supporting component can be obtained in time through the setting of the pressure sensor, so as to be cleaned in time to avoid the generation of combustible gases such as methane after long-term accumulation and corrosion, which affects the monitoring effect; the monitoring device is provided with a combustible gas detector, which can detect the concentration of combustible gas in the gas valve well and send it to the control unit, so that the control unit can open the ventilation unit for ventilation in time to avoid the accumulation of combustible gas in the gas valve well; the monitoring device is also provided with a liquid level sensor, so that the control unit can obtain the liquid level information at the water pit in time through the control unit. When the liquid level is too high, the staff can be reminded in time to avoid going down the well, thereby ensuring the safety of the operation.

[0045] 2) The setting of the alarm unit in the present invention can alarm through the corresponding alarm component by the control unit when the relevant data obtained by the corresponding sensor exceeds the set value, and alarm in time when the combustible gas concentration in the gas valve well, the liquid level data in the water pit, and the weight of impurities at the filter unit exceed the set value.

[0046] 3) In the present invention, the supporting component is a fixed hook body, and a hook is arranged on the side of the filter component. The hook is engaged with the hook body, which facilitates the installation of the filter component, ensures the stable engagement of the filter component with the supporting component, and also facilitates the disassembly of the filter component.

[0047] 4) In the present invention, a cover body can be provided at the end side of the hook, and the cover body can be engaged with the top side of the pressure sensor to ensure a stable connection between the hook and the pressure sensor. As the weight of impurities at the filter unit increases, the hook and the pressure sensor are stably connected to ensure the accuracy of the pressure sensor measurement data.

[0048] 5) In the present invention, a recess is provided in the horizontal section of the fixed hook body, and one side of the pressure sensor is inserted into the recess to preliminarily position and fix the pressure sensor. An ear can be provided on the side of the pressure sensor, and a fastener passes through the ear opening to connect with the fixed hook body, thereby ensuring the stable setting of the pressure sensor and further improving the accuracy of the pressure sensor measurement data.

[0049] 6) The monitoring method of the present invention can realize the acquisition of the combustible gas concentration in the gas valve well, the liquid level data in the water pit, and the pressure data between the filter unit and the supporting component. The control unit compares each relevant data with the corresponding set value. The control unit can timely obtain whether the relevant data exceeds the limit, so as to timely control the ventilation unit or prompt the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0051] Figure 1 is a schematic diagram of a gas valve well monitoring device according to one or more embodiments of the present invention.

[0052] Figure 2 The present invention Figure 1 A magnified view of the middle structure.

[0053] Figure 3 It is a schematic diagram of the connection between a pressure sensor and a cover body in a gas valve well monitoring device according to one or more embodiments of the present invention.

[0054] Figure 4 It is a schematic diagram of the controller arrangement in a gas valve well monitoring device according to one or more embodiments of the present invention.

[0055] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0056] Among them: 1. Solar panel; 2. Control box; 3. Sound and light alarm; 4. Equipment installation pole; 5. Rib; 6. Fixed pier; 7. Cable casing; 8. Casing; 9. Combustible gas detector; 10. Liquid level monitor; 11. Gas valve well; 12. Cable; 13. Cable; 14. Cable; 15. Cable; 16. Photovoltaic controller; 17. Battery; 18. Communication module; 19. MCU processor; 20. Sound and light alarm; 21. Data processing module; 22. Cable; 23. Cable; 24. Cable; 25. Embedded exhaust fan; 26. Exhaust duct; 27. Rain shield; 28. Cable; 29. ​​Cable; 30. Gas well cover; 31. Filter cover; 32. Fixed hook; 33. Hook; 34. Cable; 35. Pressure sensor; 36. Cover; 37. Ear. DETAILED DESCRIPTION

[0057] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0059] As introduced in the background technology, in the prior art, impurities in the gas valve well are easily accumulated, affecting the gas pipeline and the health of the workers. In order to solve the above technical problems, the present invention proposes a monitoring device for the gas valve well.

[0060] Embodiment 1

[0061] In a typical embodiment of the present invention, reference is made to Figure 1 As shown, a gas valve well monitoring device comprises:

[0062] A support component, which is installed on the top side wall of the gas valve well 11 and is lower than the wellhead;

[0063] A filter unit, the filter unit comprises a filter component, and a side portion of the filter component is detachably mounted on the support component;

[0064] Data acquisition unit, a combustible gas detector 9 arranged in the gas valve well 11, a liquid level monitor 10 arranged in the water pit at the bottom of the gas valve well, and a pressure sensor arranged between the support component and the filter unit;

[0065] A ventilation unit, the ventilation unit is installed on the side wall of the gas valve well;

[0066] A power supply unit, the power supply unit includes an equipment installation rod arranged at the side of the gas valve well, a power supply component is arranged at the equipment installation rod, and the power supply component is separately connected with the data acquisition unit and the ventilation component;

[0067] The control unit, each sensor in the data acquisition unit, the ventilation unit, and the power supply unit are separately connected to the control unit.

[0068] It should be noted that the monitoring device also includes an alarm unit, which is connected to the control unit. The control unit receives the combustible gas concentration data detected by the combustible gas detector and compares it with the set value. When the combustible gas concentration data in the gas valve well exceeds the set value, the control unit controls the alarm unit to alarm; when the control unit detects that the liquid level in the gas valve well exceeds the set value, the control unit controls the alarm unit to alarm; when the control unit monitors that the weight of debris at the filter unit exceeds the set value, the control unit controls the alarm unit to alarm.

[0069] In this embodiment, the alarm unit includes several alarm components, which are specifically sound and light alarms 3. There can be multiple sound and light alarms 3, which correspond one by one to the combustible gas detector 9, the liquid level monitor 10 and the pressure sensor 35 respectively. When a combustible gas leak occurs or the liquid level exceeds the limit, different types of sound and light warnings can be issued; of course, in other examples, the alarm component can also be other alarm components, such as a buzzer or a light emitter.

[0070] It should be noted that the control unit specifically includes a PLC controller or other types of controllers, see Figure 4 As shown, the controller can also be a microcontroller unit (MCU processor 19), which is connected to the data processing module 21 through a cable 23 and to the communication module 18 through a cable 24. The data processing module is separately connected to each sensor, detector, etc. The microcontroller unit is connected to the sound and light alarm 20 through a cable 13, and is connected to the embedded exhaust fan 25 through a cable 28.

[0071] It is easy to understand that the controller is arranged in the control box 2, and the control box and the alarm unit are fixed to the outside of the equipment mounting pole;

[0072] It needs to be explained that the top plate of the gas valve well is set lower than the wellhead, and backfill soil is set above the top plate of the gas valve well. The equipment installation rod 4 is set at a distance from the gas valve well. The equipment installation rod 4 is located on the side of the gas valve well away from the wellhead. The equipment installation rod 4 is used to install the power supply unit. The equipment installation rod is made of stainless steel pipe and adopts plastic coating anti-corrosion technology. The height can be 3m; the power supply unit is set on the top, and the control box can be installed by welding at a height of 1.5m from the ground, and the alarm component can be installed by welding at a height of 2m. The wires of the alarm component are connected to the controller in the control box.

[0073] In addition, a fixed pier 6 extending deep into the ground is set at the bottom of the equipment installation rod. A cylindrical fixed pier can be made of concrete. The outer diameter of the fixed pier is larger than the outer diameter of the equipment installation rod. Multiple ribs 5 are set between the top side of the fixed pier and the equipment installation rod 4. A cable sleeve 7 is set in the equipment installation rod and the fixed pier. The cable sleeve 7 passes through the side wall of the gas valve well, passes through the underground and enters the fixed pier 6 to the equipment installation rod 4 upward. The above-ground part of the cable sleeve 7 adopts a plastic coating anti-corrosion process, and the underground part adopts an anti-corrosion process. A waterproof sleeve is used for passing through the wall of the gas valve well. Hemp asphalt is used to seal the cable sleeve and the equipment installation rod pipe, and between the equipment installation rod and the cable. The cable sleeve is set at a position in the gas valve well lower than the embedded exhaust fan 25.

[0074] The power supply component includes a solar panel. The solar panel 1 is a single crystal panel with a length of 670 mm, a width of 350 mm, a peak power of 40 W, and a peak voltage of 18 V. The cable 12 of the solar panel is located inside the equipment mounting pole 4 and is connected to the photovoltaic controller in the control box. The photovoltaic controller 16 is connected to the battery 17 located in the control box 2. The battery 17 is connected to the micro control unit through a cable 22 and supplies power to all electrical components. The solar panel is movably installed on the equipment mounting pole so that the solar panel can be rotated relative to the equipment mounting pole; specifically, the solar panel is installed on the top of the equipment mounting pole in a hinged manner, and the angle of the solar panel relative to the horizontal plane is adjustable.

[0075] In addition, the solar panel is connected to the battery, and the battery is connected to the control unit to ensure the continuity of power supply.

[0076] It is easy to understand that the microcontroller unit is bidirectionally connected to the combustible gas detector 9 and the liquid level monitor through cables (the two can transmit information to the control unit, and the control unit can also send instructions to the two to achieve remote opening and closing), and is unidirectionally connected to the pressure sensor (unidirectionally transmitting signals to the controller); the combustible gas detector can specifically be a methane concentration detector, the cable 14 of the combustible gas detector 9 enters the cable casing 7, the liquid level monitor is specifically an existing liquid level height detection sensor, the liquid level monitor is specifically installed 30 cm above the sump mouth, and is used to monitor the liquid level height in the gas valve well in real time, and the cable 15 connecting the liquid level monitor 10 and the microcontroller enters the cable casing.

[0077] In other examples, the control unit and the remote terminal are connected through an existing wireless network (such as GPRS general packet radio transmission protocol and SMS channel number. The GPRS unlimited transmission protocol is selected by default. When one of the communication methods is limited, the other method will be urgently started for real-time data transmission). The remote terminal can be a mobile phone or a computer. The relevant data detected by each sensor can be viewed in time through the remote terminal. After the control unit obtains relevant data exceeding the corresponding set value, it alarms the remote terminal so that the staff can check the information in time and maintain the gas valve well in time, or do not go down the well when the liquid level is higher than the set value to ensure the life safety of the staff.

[0078] In addition, it should be noted that the water pit is located at the bottom of the middle section of the gas valve well. Figure 1 Not shown in the figure, drainage components such as gravel are set at the bottom of the water pit to facilitate the downward discharge of the accumulated water in the water pit.

[0079] It is easy to understand that the filter unit is used to collect scattered leaves and other debris. When the mass of impurities in the filter unit exceeds the set pressure value, information is sent to the control unit. The control unit controls the corresponding alarm unit to issue an alarm in time so as to clean up in time to avoid affecting the monitoring effect.

[0080] For this purpose, refer to Figure 2 As shown, the support component includes a plurality of fixed hooks 32, for example, 4, and the plurality of fixed hooks are evenly arranged in the circumferential direction of the gas valve well. By setting the plurality of fixed hooks, the filter unit can be stably supported at the wellhead of the gas valve well, and the filter unit is set lower than the gas well cover 30;

[0081] Accordingly, at least two pressure sensors are provided, and the plurality of pressure sensors are respectively provided at different fixed hook bodies. When two pressure sensors are provided, the two pressure sensors can be provided with one fixed hook body spaced apart;

[0082] A plurality of hooks 33 (which can be welded) are arranged on the side of the filter component, and the hooks are engaged with the fixed hook body, Figure 2 As shown, the hook 33 is an inverted U-shape, and the width of the hook opening can be adapted to the thickness of the shorter side of the fixed hook body 32, so that the hook and the fixed hook body are engaged and connected, which is not only convenient for the installation of the filter component, but also convenient for the removal of the filter component;

[0083] Specifically, the filter component is a filter mesh cover, which is a stainless steel mesh cover. The filter mesh cover 31 is provided with multiple meshes, and the mesh aperture is 5 mm. Through the setting of the filter mesh cover, impurities are filtered at the filter mesh cover, and larger particles of impurities will not fall to the bottom of the gas valve well, and it is convenient to uniformly handle the impurities.

[0084] The pressure sensor 35 is fixed at the horizontal section of the fixed hook body, the top side of the pressure sensor is in contact with or connected to the hook, and the cables 34 of the multiple pressure sensors enter the cable casing 7 along the inner wall of the gas valve well;

[0085] The hook is used to set the cover at the end connected to the pressure sensor, refer to Figure 3 As shown, the cover body 36 is in a truncated cone shape, and the peripheral side of the cover body 36 is bent downward, so that the cover body is snap-connected with the top side of the pressure sensor 35, or the cover body and the pressure sensor can be fixedly connected by screws or adhesives. Through the setting of the cover body, the stable connection between the hook and the pressure sensor is guaranteed. As the weight of impurities at the filter unit increases, the stable connection between the hook and the pressure sensor is guaranteed to ensure the accuracy of the pressure sensor measurement data.

[0086] It is easy to understand that the fixed hook body 32 is U-shaped, and the fixed hook body 32 has a horizontal section. The height of the side of the fixed hook body connected to the gas valve well is greater than the height of the other side to ensure that the shorter side of the hook is stably engaged with the lower side of the fixed hook body;

[0087] A recess is provided in the horizontal section of the fixed hook body 32, and the shape of the recess is the same as the shape of the bottom side of the pressure sensor. One side of the pressure sensor is inserted into the recess. An ear 37 can be provided on the side of the pressure sensor. An opening is provided on the ear. Fasteners such as screws pass through the ear opening and are connected to the fixed hook body, thereby ensuring the stable setting of the pressure sensor and further improving the accuracy of the pressure sensor measurement data.

[0088] The pressure sensor 35 is specifically an existing circular micro pressure sensor.

[0089] It should be noted that the combustible gas detector 9 is installed on the top side of the gas valve well, specifically on the lower side of the top of the gas valve well. The combustible gas detector is set below the filter unit. The combustible gas detector 9 is installed on the wall of the gas valve well 11 and close to the top. Once a leak occurs, the combustible gas will first gather at the top, which can be discovered and warned in time.

[0090] In this embodiment, the ventilation unit is an embedded exhaust fan 25 fixed to the side wall of the gas valve shaft. The exhaust pipe 26 of the embedded exhaust fan passes through the ground equipment mounting pole to the outside of the equipment mounting pole, and a rain shield 27 is provided on the part of the exhaust pipe 26 exposed from the equipment mounting pole. In some examples, the combustible gas detector 9 is interlocked with the embedded exhaust fan 25 through a cable 29. When the combustible gas detector detects a combustible gas leak, it is forced to start and the gas is discharged to the outside of the shaft through the exhaust pipe.

[0091] Taking into account that combustible gas leaks mainly gather on the upper side of the gas valve well, in some examples, the ventilation unit is set lower than the combustible gas detector. The ventilation unit and the combustible gas detector can be placed on the same side wall of the gas valve well, or the two can be set side by side in the gas valve well. The setting position of the combustible gas detector is conducive to ensuring the rapid response of the combustible gas detector.

[0092] The monitoring device provided in this embodiment is provided with a filter unit for filtering impurities to prevent excessive large impurities from falling into the gas valve well. The pressure of impurities at the filter component acting on the support component can be obtained in time through the setting of the pressure sensor, so as to be cleaned in time; the monitoring device is provided with a combustible gas detector, which can detect the concentration of combustible gas in the gas valve well and send it to the control unit, so that the control unit can open the ventilation unit for ventilation in time to prevent the accumulation of combustible gas in the gas valve well; the monitoring device is also provided with a liquid level sensor, so that the control unit can obtain the liquid level information at the water pit in time through the control unit, and when the liquid level is too high, the staff is promptly reminded to avoid going down the well to ensure the safety of the operation; the solar panel is located on the top of the device body, which can fully receive light and ensure the power supply capacity; at the same time, a battery is provided as a backup power supply in special weather; the equipment body can be set in green belts, open spaces and other areas, and connected to the monitoring equipment in the valve well by laying cables through buried pipelines, and the location of the device is not restricted.

[0093] Embodiment 2

[0094] This embodiment provides a monitoring method for a gas valve well monitoring device, including the following contents:

[0095] During the installation of the gas valve well, a ventilation unit is installed in the gas valve well, a support component is installed on the top side wall of the gas valve well below the wellhead, a filter unit is installed through the support component, and a pressure sensor is arranged between the filter unit and the support component;

[0096] Install a combustible gas detector in the gas valve well and a liquid level monitor in the water pit at the bottom of the gas valve well;

[0097] The combustible gas detector detects the combustible gas concentration data in the gas valve well and sends it to the control unit. The control unit compares the combustible gas concentration data with the combustible gas set value. If the combustible gas concentration data exceeds the combustible gas set value, the control unit controls the ventilation unit to start working;

[0098] The liquid level monitor detects the liquid level data in the water pit of the gas valve well and sends it to the control unit. The control unit compares the liquid level data with the liquid level data set value. If the liquid level data is greater than the liquid level data set value, the control unit will alarm;

[0099] The pressure sensor detects the pressure of impurities acting on the support component at the filter unit, and the control unit compares the pressure acting on the support component with the pressure setting value. If the pressure acting on the support component is greater than the pressure setting value, the control unit will alarm.

[0100] The combustible gas alarm 9 and the liquid level monitor 10 monitor the situation in the gas valve well in real time. When there is no gas leakage or liquid level exceeding the limit, the MCU processor 19 gives an instruction to process the collected data once every 10 minutes, and the communication module 18 sends the data to the remote terminal under the instruction of the MCU processor 19; when a gas leak occurs, the combustible gas alarm 9 transmits the collected leakage data to the data processing module 21. After the MCU processor 19 identifies the abnormal working condition, it is adjusted to process the collected data once every 10 seconds, and the communication module 18 sends the data to the remote terminal under the instruction of the MCU processor 19, and at the same time instructs the sound and light alarm 3 to issue a warning. A slight gas leak is intermittent, and when the leakage situation worsens, it is changed to continuous sounding, and a red light is emitted with a flashing frequency that changes with the sound rhythm. At the same time, the leakage data is linked to the embedded exhaust fan 25 through the cable 29, and the forced exhaust is started, and the exhaust is discharged to the outside of the well through the exhaust pipe 26;

[0101] When the liquid level exceeds the limit, the liquid level monitor 10 transmits the collected liquid level data to the data processing module 21. After the MCU processor 19 identifies the abnormal operating condition, it is adjusted to process the collected data once every 10 seconds, and under the instruction of the MCU processor 19, the communication module 18 sends the data to the remote control center, and at the same time instructs the sound and light alarm 3 to issue a warning, using a "beep-beep-beep" sound warning mode, and emitting a yellow light whose flashing frequency changes with the ringing rhythm.

[0102] The data processing module 21 is connected to the pressure sensor 35 via a cable 34, and the filter cover 31 is connected to the fixed hook body 32 via four hooks 31. When the leaves and other debris in the filter cover 31 reach the set weight, the MCU processor 19 controls the corresponding alarm component to alarm and send data to the remote terminal.

[0103] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas valve well monitoring device, characterized in that: include: A supporting component, the supporting component is installed on the side wall of the gas valve well top and below the wellhead; A filter unit, the filter unit comprises a filter component, and a side portion of the filter component is detachably mounted on the support component; The data acquisition unit includes a combustible gas detector disposed in the gas valve well, a liquid level monitor disposed in a water pit at the bottom of the gas valve well, and a pressure sensor disposed between the support component and the filter unit; A ventilation unit, the ventilation unit is installed on the side wall of the gas valve well; A power supply unit, the power supply unit includes an equipment installation rod arranged at the side of the gas valve well, a power supply component is arranged at the equipment installation rod, and the power supply component is separately connected with the data acquisition unit and the ventilation component; The control unit, the data acquisition unit, the ventilation unit and the power supply unit are separately connected to the control unit.

2. A gas valve well monitoring device according to claim 1, characterized in that: It also includes an alarm unit, which is connected to the control unit; The alarm unit includes several alarm components; The control unit is connected to the remote terminal.

3. A gas valve well monitoring device according to claim 1, characterized in that: The support component includes a plurality of fixed hooks, and the plurality of fixed hooks are evenly arranged in the circumferential direction of the gas valve well; At least two pressure sensors are provided, and the two pressure sensors are respectively provided at different fixing hooks.

4. A gas valve well monitoring device according to claim 3, characterized in that: A plurality of hooks are arranged on the side of the filter component, and the hooks are engaged with the fixed hook body; The filter component is a filter screen.

5. A gas valve well monitoring device according to claim 3, characterized in that: The pressure sensor is fixed to the horizontal section of the fixed hook body, and the top side of the pressure sensor is in contact with or connected to the hook; The hook is used to set a cover at one end connected with the pressure sensor, and the cover is snap-connected with the top side of the pressure sensor or the cover is fixedly connected with the pressure sensor.

6. A gas valve well monitoring device according to claim 3, characterized in that: The fixed hook body is U-shaped, and the height of the fixed hook body on one side connected to the gas valve well is greater than the height of the other side; A recess is arranged on the horizontal section of the fixed hook body, and one side of the pressure sensor is inserted into the recess.

7. A gas valve well monitoring device according to claim 1, characterized in that: The combustible gas detector is installed on the top side of the gas valve well, and the combustible gas detector is arranged below the filter unit.

8. A gas valve well monitoring device according to claim 1, characterized in that: The ventilation unit is an embedded exhaust fan, and the exhaust pipe of the embedded exhaust fan passes through the ground, enters the equipment installation rod, and finally passes through the equipment installation rod; The ventilation unit is arranged below the combustible gas detector, or the two are arranged side by side.

9. A gas valve well monitoring device according to claim 2, characterized in that: The control unit and the alarm unit are both fixed to the outside of the equipment mounting pole; The power supply component includes a solar panel, which is movably mounted on the equipment mounting pole; The solar cell panel is connected to a storage battery, and the storage battery is connected to the control unit.

10. A monitoring method for a gas valve well monitoring device according to any one of claims 1 to 9, characterized in that: It includes the following: During the installation of the gas valve well, a ventilation unit is installed in the gas valve well, a support component is installed on the top side wall of the gas valve well below the wellhead, a filter unit is installed through the support component, and a pressure sensor is arranged between the filter unit and the support component; Install a combustible gas detector in the gas valve well and a liquid level monitor in the water pit at the bottom of the gas valve well; The combustible gas detector detects the combustible gas concentration data in the gas valve well and sends it to the control unit. The control unit compares the combustible gas concentration data with the combustible gas set value. If the combustible gas concentration data exceeds the combustible gas set value, the control unit controls the ventilation unit to start working; The liquid level monitor detects the liquid level data in the water pit of the gas valve well and sends it to the control unit. The control unit compares the liquid level data with the liquid level data set value. If the liquid level data is greater than the liquid level data set value, the control unit will alarm; The pressure sensor detects the pressure of impurities acting on the support component at the filter unit, and the control unit compares the pressure acting on the support component with the pressure setting value. If the pressure acting on the support component is greater than the pressure setting value, the control unit will alarm.

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