Gas film coal yard safety inspection device and system

Abstract

The utility model discloses a gas film coal yard safety inspection device and system. The gas film coal yard safety inspection device comprises an installation structure, a lifting support, a detection assembly and a cable trough box. The mounting structure comprises channel steel and buried iron, the two pieces of buried iron are buried in a coal retaining wall of the gas film coal yard, and the channel steel is fixed to the two pieces of buried iron. The lifting support comprises a supporting rod, a lifting rod, a mounting rod and a driving mechanism, the supporting rod is mounted on the channel steel, the lifting rod is mounted on the supporting rod, the driving mechanism comprises a manual driving assembly or an electric driving assembly and is used for driving the lifting rod to ascend and descend relative to the supporting rod, and the mounting rod is arranged at the top end of the lifting rod; the detection assembly comprises a methane sensor, a carbon monoxide sensor and a smoke sensor which are mounted on the mounting rod; the cable trough box is installed on the supporting rod or the channel steel, a bus type electric control module is integrated in the cable trough box, and the bus type electric control module receives and processes sensor detection signals and generates safety early warning signals according to the detection signals. According to the technical scheme, an installation platform can be provided for the safety monitoring sensor.

Description

Technical Field

[0001] This utility model relates to the field of sensor installation technology, and in particular to a safety inspection device and system for air-supported coal yards. Background Technology

[0002] The strip-shaped enclosed coal yard of thermal power plants is currently the mainstream environmentally friendly coal storage facility, and its mainstream structural forms include steel structure grid, portal steel frame, and concrete arch shell structure. NB / T 10376-2019 "General Technical Conditions for Safety Monitoring Systems of Enclosed Coal Storage Facilities" recommends installing methane, carbon monoxide, and smoke sensors on the coal yard maintenance walkway for safety monitoring.

[0003] In recent years, air-supported membrane coal yards have been gradually promoted due to their advantages such as short construction period, high space utilization, and low energy consumption. However, their structural characteristics, relying on flexible membrane materials and internal air pressure support, result in the absence of traditional maintenance walkways within the coal yard, rendering the aforementioned detection sensors without a conventional installation platform. Furthermore, air-supported membrane coal yards present risks of spontaneous combustion of coal releasing carbon monoxide, gas accumulation, and fire hazards, requiring real-time monitoring of gas concentrations and fire hazards through sensors. Traditional installation methods fail in air-supported membrane coal yards; therefore, how to rationally deploy detection instruments in this special environment without maintenance walkways has become a pressing technical problem that needs to be solved to ensure the safe production of air-supported membrane coal yards. Utility Model Content

[0004] The main purpose of this invention is to propose a safety inspection device for air-supported coal yards, which aims to provide an installation platform for safety monitoring sensors.

[0005] To achieve the above objectives, the present invention proposes a safety inspection device for air-supported coal yards, comprising:

[0006] The installation structure includes a channel steel and at least two embedded irons, the two embedded irons being vertically embedded in the retaining wall of the air-supported coal yard, and the channel steel being welded and fixed to the two embedded irons.

[0007] A lifting support includes a support rod, a lifting rod, a mounting rod, and a drive mechanism. The support rod is mounted on the channel steel, and the lifting rod is movably mounted on the support rod for driving the lifting rod to rise and fall relative to the support rod. The mounting rod is located at the top of the lifting rod and is perpendicular to the lifting rod.

[0008] The detection components include a methane sensor, a carbon monoxide sensor, and a smoke sensor mounted on a mounting rod; and

[0009] A cable tray is installed on the support rod or the channel steel. The cable tray integrates a bus-type electronic control module. The methane sensor, the carbon monoxide sensor, and the smoke sensor are all electrically connected to the bus-type electronic control module via cables. The bus-type electronic control module is used to receive and process sensor detection signals and generate safety warning signals based on the detection signals.

[0010] Optionally, the driving mechanism is a manual drive assembly, which is equipped with a handwheel adjustment assembly or a worm gear transmission structure. The lifting rod is raised or lowered relative to the support rod by operating the handwheel adjustment assembly or by using the worm gear transmission structure.

[0011] Optionally, the drive mechanism is an electric drive assembly, including a motor and a lead screw and nut pair. The motor is electrically connected to a bus-type electronic control module, and the motor is drively connected to the lead screw and nut pair. The lead screw and nut pair is located on the lifting rod, so that the motor drives the lead screw and nut pair to move the lifting rod relative to the support rod.

[0012] Optionally, the driving mechanism is a pneumatic support rod, which is connected to the compressed air pipeline of the air-supported coal yard through an air pipe, and uses compressed air to drive the lifting rod to rise and fall relative to the support rod.

[0013] Optionally, the cross-sectional dimensions of the cable tray are 100mm × 50mm.

[0014] This utility model also proposes a safety inspection system for air-supported coal yards, including multiple air-supported coal yard safety inspection devices as described above. The multiple air-supported coal yard safety inspection devices are arranged horizontally at intervals along the length of the coal retaining wall, and the distance between any two adjacent air-supported coal yard safety inspection devices is no more than 15 meters.

[0015] This utility model's technical solution involves embedding two embedded iron blocks 11 within the retaining wall 50 of an air-supported coal yard, and then welding and fixing channel steel 12 to the two embedded iron blocks 11 to form an installation foundation. A support rod 21 can then be installed and fixed onto the channel steel 12, and a lifting rod 22 can be installed on the support rod 21. Simultaneously, a mounting rod 23 perpendicular to the top of the lifting rod 22 is provided. After installation, the mounting rod 23 extends horizontally. A driving mechanism is provided between the lifting rod 22 and the support rod 21, which can drive the lifting rod 22 and the mounting rod 23 to rise and fall relative to the support rod 21. The lifting rod 22 and mounting rod 23 are raised and lowered to a lower position. A methane sensor 31, a carbon monoxide sensor 32, and a smoke sensor 33 are installed on the mounting rod 23. Simultaneously, a cable tray 40 is installed at the lower end of the support rod 21 or on the channel steel 12. The cable tray 40 integrates a bus-type electronic control module, allowing the methane sensor 31, the carbon monoxide sensor 32, and the smoke sensor 33 to be electrically connected to the bus-type electronic control module via cables. The driving mechanism then adjusts the lifting rod 22 and mounting rod 23 to a convenient height for detection, enabling better monitoring of the safety conditions within the gas-supported coal yard. This adjustable mounting rod 23 facilitates the installation of detection components and makes routine calibration, cleaning, maintenance, or sensor replacement easier, eliminating the risk of workers operating at heights. Furthermore, different functional detection devices can share the height adjustment capability, avoiding redundant lifting mechanisms and reducing system complexity. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the air-supported coal yard safety inspection device of this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure after the height of the lifting rod has been adjusted.

[0019] Figure 3 This is a schematic diagram of an embodiment of the air-supported coal yard safety inspection system of this utility model.

[0020] Explanation of icon numbers:

[0021] 11. Buried iron; 12. Channel steel; 21. Support rod; 22. Lifting rod; 23. Mounting rod; 31. Methane sensor; 32. Carbon monoxide sensor; 33. Smoke sensor; 40. Cable tray; 50. Coal retaining wall;

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] This utility model proposes a safety inspection device for air-supported coal yards.

[0027] In the embodiments of this utility model, such as Figure 1 and Figure 2As shown, the air-supported coal yard safety inspection device includes an installation structure, a lifting support, a detection component, and a cable tray 40. The installation structure includes a channel steel 12 and at least two embedded irons 11. The two embedded irons 11 are vertically embedded in the retaining wall 50 of the air-supported coal yard, and the channel steel 12 is welded and fixed to the two embedded irons 11. The lifting support includes a support rod 21, a lifting rod 22, a mounting rod 23, and a drive mechanism. The support rod 21 is mounted on the channel steel 12, and the lifting rod 22 is movably mounted on the support rod 21. The drive mechanism includes a manual drive component or an electric drive component for driving the lifting rod 22 relative to the support rod 21. The rod 21 is raised and lowered, and the mounting rod 23 is located at the top of the lifting rod 22 and is perpendicular to the lifting rod 22. The detection assembly includes a methane sensor 31, a carbon monoxide sensor 32, and a smoke sensor 33 mounted on the mounting rod 23. The cable tray 40 is installed on the support rod 21 or the channel steel 12. The cable tray 40 integrates a bus-type electronic control module. The methane sensor 31, the carbon monoxide sensor 32, and the smoke sensor 33 are all electrically connected to the bus-type electronic control module through cables. The bus-type electronic control module is used to receive and process the sensor detection signals and generate a safety warning signal based on the detection signals.

[0028] Specifically, when arranging the safety inspection device for the air-supported coal yard, the channel steel 12 can be welded and fixed to the two embedded irons 11 first, and then the lifting bracket can be installed on the channel steel 12. At the same time, the cable trough and the bus-type electrical control module can be installed. Then, the lifting rod 22 and the mounting rod 23 can be adjusted to a lower position through the drive mechanism to facilitate the installation of the detection component. At the same time, the detection component and the bus-type electrical control module can be connected through the cable. After the installation is completed, the lifting rod 22 and the mounting rod 23 can be adjusted to a higher position through the drive mechanism to facilitate the safety monitoring of the detection component.

[0029] This utility model's technical solution involves embedding two embedded iron blocks 11 within the retaining wall 50 of an air-supported coal yard, and then welding and fixing channel steel 12 to the two embedded iron blocks 11 to form an installation foundation. A support rod 21 can then be installed and fixed onto the channel steel 12, and a lifting rod 22 can be installed on the support rod 21. Simultaneously, a mounting rod 23 perpendicular to the top of the lifting rod 22 is provided. After installation, the mounting rod 23 extends horizontally. A driving mechanism is provided between the lifting rod 22 and the support rod 21, which can drive the lifting rod 22 and the mounting rod 23 to rise and fall relative to the support rod 21. The lifting rod 22 and mounting rod 23 are raised and lowered to a lower position. A methane sensor 31, a carbon monoxide sensor 32, and a smoke sensor 33 are installed on the mounting rod 23. Simultaneously, a cable tray 40 is installed at the lower end of the support rod 21 or on the channel steel 12. The cable tray 40 integrates a bus-type electronic control module, allowing the methane sensor 31, the carbon monoxide sensor 32, and the smoke sensor 33 to be electrically connected to the bus-type electronic control module via cables. The driving mechanism then adjusts the lifting rod 22 and mounting rod 23 to a convenient height for detection, enabling better monitoring of the safety conditions within the gas-supported coal yard. This adjustable mounting rod 23 facilitates the installation of detection components and makes routine calibration, cleaning, maintenance, or sensor replacement easier, eliminating the risk of workers operating at heights. Furthermore, different functional detection devices can share the height adjustment capability, avoiding redundant lifting mechanisms and reducing system complexity.

[0030] In some embodiments, the drive mechanism is a manual drive assembly, which includes a handwheel adjustment component or a worm gear transmission structure. The lifting rod 22 is raised or lowered relative to the support rod 21 by operating the handwheel adjustment component or utilizing the worm gear transmission structure. Specifically, when the manual drive assembly includes a worm gear transmission structure, because the worm gear mechanism has a natural reverse self-locking function, once the lifting rod 22 is adjusted to the target height, it can remain fixed without an additional braking device, preventing accidental slippage due to coal yard vibration, wind, or the weight of the detection component. This ensures the sensor maintains a stable height during long-term monitoring, preventing blind spots or equipment damage. Through gear speed increase or the large transmission ratio of the worm gear, manual labor can be converted into labor-saving rotary motion. When the manual drive assembly is set as a handwheel adjustment component, even if the lifting rod 22 is heavily loaded, the operator can easily raise and lower it by turning the handwheel with a small torque, reducing the intensity of manual operation.

[0031] In some embodiments, the drive mechanism is an electric drive assembly, including a motor and a lead screw and nut pair. The motor is electrically connected to a bus-type electronic control module, and the motor is drive-connected to the lead screw and nut pair. The lead screw and nut pair is located on the lifting rod 22, so that the motor drives the lead screw and nut pair to move the lifting rod 22 relative to the support rod 21. Specifically, the lead screw and nut pair has high transmission accuracy, and in conjunction with the motor, it can precisely control the height of the lifting rod 22, ensuring that the height of the sensor matches the expected position. Moreover, the electric drive supports automatic lifting and lowering via a bus-type electronic control module or an external control system, eliminating the need for manual on-site operation. Compared to manual adjustment based on experience, this avoids monitoring data errors caused by height deviations. Furthermore, the bus-type electronic control module includes a remote control program, allowing operators to control the safety inspection device via network from a monitoring center or other remote location without needing to be physically present at the air-supported coal yard. This saves significant time and labor costs, making it particularly suitable for centralized management of large coal yards or multiple widely distributed coal yards.

[0032] In some embodiments, the driving mechanism is a support rod 21, which is connected to the compressed air pipeline of the air-supported membrane coal yard via an air pipe. Compressed air is used to drive the lifting rod 22 to rise and fall relative to the support rod 21. Specifically, pneumatic drive primarily utilizes compressed air as a power source, which is a relatively readily available and low-cost energy source in air-supported membrane coal yards. Compared to electric drive, pneumatic drive consumes less energy during operation, especially during long-term continuous operation, significantly reducing energy costs. Furthermore, the internal environment of an air-supported membrane coal yard is typically harsh, containing large amounts of dust, moisture, and potentially flammable and explosive gases. The support rod 21 has no electrical components and does not generate electrical sparks, fundamentally avoiding the risk of explosion due to electrical faults, thus ensuring high safety.

[0033] In some embodiments, the cross-sectional dimensions of the cable tray 40 are 100mm × 50mm. Specifically, the 100mm × 50mm cross-sectional dimensions are a common medium-sized cable tray in industrial settings, suitable for most wall, floor, or overhead installation scenarios. It is especially suitable for cable arrangements along walls and equipment supports in narrow spaces such as air-supported coal yards, requiring no special customized supports and making installation easier.

[0034] In some embodiments, the methane sensor 31, carbon monoxide sensor 32, and smoke sensor 33 are arranged sequentially. Specifically, the three-level sensors are arranged in the time sequence of "leakage → oxidation → combustion" to form a logical closed loop of "risk prediction → trend confirmation → emergency response," avoiding missed or false detections by a single sensor.

[0035] In some embodiments, the lifting range of the lifting rod 22 is adjusted according to the distance between the coal retaining wall 50 and the air film to avoid the lifting support and detection components from touching the air film and to avoid damage to the air film.

[0036] This utility model also proposes a safety inspection system for air-supported membrane coal yards, comprising multiple air-supported membrane coal yard safety inspection devices as described above. These devices are arranged horizontally at intervals along the length of the retaining wall 50, with the distance between any two adjacent devices not exceeding 15 meters. Specifically, the retaining wall 50 is a critical structure at the edge of the coal yard. The contact area between the coal pile and the wall is prone to abnormal temperature and gas leakage due to compaction, friction, or water seepage. The uniform arrangement with a spacing of ≤15 meters ensures that the monitoring range of each device forms a continuous or partially overlapping monitoring zone in the horizontal direction, avoiding monitoring blind spots.

[0037] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A safety inspection device for air-supported coal yards, used for safety inspections in air-supported coal yards, characterized in that, include: The installation structure includes a channel steel and at least two embedded irons, the two embedded irons being vertically embedded in the retaining wall of the air-supported coal yard, and the channel steel being welded and fixed to the two embedded irons. A lifting support includes a support rod, a lifting rod, a mounting rod, and a drive mechanism. The support rod is mounted on the channel steel, and the lifting rod is movably mounted on the support rod. The drive mechanism is used to drive the lifting rod to rise and fall relative to the support rod. The mounting rod is located at the top of the lifting rod and is perpendicular to the lifting rod. The detection components include a methane sensor, a carbon monoxide sensor, and a smoke sensor mounted on the mounting rod; as well as A cable tray is installed on the support rod or the channel steel. The cable tray integrates a bus-type electronic control module. The methane sensor, the carbon monoxide sensor, and the smoke sensor are all electrically connected to the bus-type electronic control module via cables. The bus-type electronic control module is used to receive and process sensor detection signals and generate safety warning signals based on the detection signals.

2. The air-supported coal yard safety inspection device as described in claim 1, characterized in that, The driving mechanism is a manual drive assembly, which is equipped with a handwheel adjustment assembly or a worm gear transmission structure. The lifting rod is raised or lowered relative to the support rod by operating the handwheel adjustment assembly or by using the worm gear transmission structure.

3. The air-supported coal yard safety inspection device as described in claim 1, characterized in that, The drive mechanism is an electric drive assembly, including a motor and a lead screw and nut pair. The motor is electrically connected to a bus-type electronic control module, and the motor is drively connected to the lead screw and nut pair. The lead screw and nut pair is located on the lifting rod, so that the motor drives the lead screw and nut pair to move the lifting rod relative to the support rod.

4. The air-supported coal yard safety inspection device as described in claim 1, characterized in that, The driving mechanism is a pneumatic support rod, which is connected to the compressed air pipeline of the air-supported coal yard through an air pipe, and uses compressed air to drive the lifting rod to rise and fall relative to the support rod.

5. The air-supported coal yard safety inspection device as described in claim 1, characterized in that, The cross-sectional dimensions of the cable tray are 100mm × 50mm.

6. A safety inspection system for an air-supported coal yard, comprising a plurality of air-supported coal yard safety inspection devices as described in any one of claims 1 to 5, wherein the plurality of air-supported coal yard safety inspection devices are arranged horizontally at intervals along the length of the coal retaining wall, and the distance between any two adjacent air-supported coal yard safety inspection devices is no greater than 15 meters.

Images