Gas detection device and mining gas monitoring equipment

Abstract

The utility model provides a gas detection device and mining gas monitoring equipment, the gas detection device comprises: a housing and a plurality of gas detection pieces, the housing is provided with a plurality of installation cavities, a gas input port and a gas output port, the installation cavities are arranged in sequence along a preset track, and two adjacent installation cavities in the installation cavities are communicated; the mounting cavity, close to the gas input port, in each mounting cavity is communicated with the gas input port, and the mounting cavity, close to the gas output port, in each mounting cavity is communicated with the gas output port; each gas detection piece is mounted in the corresponding mounting cavity; the gas detection pieces correspond to different gas types respectively, so that various gases in the to-be-detected air are detected through the gas detection pieces. The gas monitoring device provided by the utility model effectively solves the technical problem that a gas detection component in mining gas monitoring equipment in the prior art cannot detect various gases in the air in a goaf at the same time.

Description

Technical Field

[0001] This utility model relates to the technical field of mining equipment, specifically to a gas detection device and a mining gas monitoring device. Background Technology

[0002] Underground sealing walls in coal mines are constructed to eliminate air leakage channels or reduce air pressure differences between the mine and the goaf. On one hand, underground sealing walls prevent toxic and harmful gases from leaking into pedestrian tunnels from the goaf, thus avoiding injury. On the other hand, they restrict or prevent air from flowing into and permeating the goaf to contact the coal, causing the coal to oxidize upon contact with oxygen, releasing a large amount of heat that accumulates and gradually increases in temperature until it reaches its auto-ignition point and burns.

[0003] Currently, to ensure safety in underground mining operations, monitoring equipment is typically installed on sealed walls to monitor gases within the goaf. However, current monitoring equipment typically uses only one gas sensor, allowing it to detect only one type of gas in the air within the sealed wall. This limits the accuracy of the monitoring data and fails to comprehensively reflect the presence of multiple gases within the sealed wall. Consequently, in the event of a mixture of multiple hazardous gases, existing monitoring equipment may be unable to issue timely and accurate alarms, thus increasing the risks associated with mining operations. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a gas detection device and a mining gas monitoring equipment to solve the technical problem that the gas detection components in the existing mining gas monitoring equipment cannot simultaneously detect multiple gases in the air in the goaf.

[0005] To achieve the above-mentioned technical objectives, according to one aspect of this utility model: a gas detection device is provided, comprising: a housing and a plurality of gas detection elements; the housing is provided with a plurality of mounting cavities, a gas inlet, and a gas outlet; each mounting cavity is arranged sequentially along a preset trajectory, and adjacent mounting cavities are connected; the mounting cavity near the gas inlet is connected to the gas inlet, and the mounting cavity near the gas outlet is connected to the gas outlet; each gas detection element is installed in a corresponding mounting cavity; each gas detection element corresponds to a different gas type, so that multiple gases in the air to be detected can be detected by each gas detection element; the number of mounting cavities is greater than or equal to the number of gas detection elements; wherein, when the air to be detected enters the housing through the gas inlet, the air to be detected flows sequentially into each mounting cavity along the preset trajectory, and the gas detection element in the mounting cavity detects the corresponding gas in the air to be detected.

[0006] Furthermore, each mounting cavity is provided with an air inlet and an air outlet. The air inlet of the mounting cavity closest to the gas inlet is connected to the gas inlet, and the air outlet of the mounting cavity closest to the gas outlet is connected to the gas outlet. The air outlet of the upstream mounting cavity in two adjacent mounting cavities is connected to the air inlet of the downstream mounting cavity.

[0007] Furthermore, each air inlet and each air outlet are located at the bottom of the corresponding mounting cavity; each gas detection element has a groove at its bottom end, which extends along the height of the corresponding gas detection element; the detection part of each gas detection element is located in the corresponding groove; each groove is connected to the corresponding air inlet and air outlet, so that the air to be detected can enter the groove.

[0008] Furthermore, the gas detection device also includes: multiple protrusions, each protrusion corresponding to a specific mounting cavity, each protrusion being installed within its corresponding mounting cavity, and each protrusion protruding from the bottom wall of its corresponding mounting cavity; each protrusion having an air inlet, an air outlet, a first air guide port, a second air guide port, a first air guide channel communicating with the air inlet and the first air guide port respectively, and a second air guide channel communicating with the air outlet and the second air guide port respectively, the first air guide channel and the second air guide channel being spaced apart, the air inlet and the air outlet being located at the top of the corresponding protrusion, and the first air guide port and the second air guide port being located on the bottom wall of the mounting cavity; wherein, the protrusion is located below the corresponding groove, the protrusion and the corresponding groove are sealed together, and a detection cavity is formed between the protrusion and the corresponding groove.

[0009] Furthermore, the gas detection device also includes: multiple sealing elements, each corresponding to a multiple mounting cavity and a multiple boss, each sealing element protruding from the bottom wall of the corresponding mounting cavity and surrounding the corresponding boss. The sealing elements are used to seal the bottom end of the corresponding gas detection element with the bottom wall of the mounting cavity 11.

[0010] Furthermore, the housing also includes a first gas flow channel and a second gas flow channel that are interconnected. The first gas flow channel extends along a first preset direction, and the second gas flow channel extends along a second preset direction. The input end of the first gas flow channel is connected to a gas inlet, and the output end of the first gas flow channel is connected to the input end of the second gas flow channel through one of the mounting cavities. The output end of the second gas flow channel is connected to a gas outlet. The remaining mounting cavities in each mounting cavity are arranged sequentially along the first and second preset directions, and the inlet and outlet of each mounting cavity are connected to the corresponding first gas flow channel. The gas detection device is connected to a first gas flow channel or a second gas flow channel; it also includes: multiple sealing components, each sealing component corresponding to the other installation cavities in each installation cavity, the sealing part of each sealing component being movably disposed in the first gas flow channel and the second gas flow channel, and the sealing part of each sealing component being located between the air inlet and the air outlet of the corresponding installation cavity; the sealing part of the sealing component located in the first gas flow channel is used to block or avoid the first gas flow channel; the sealing part of the sealing component located in the second gas flow channel is used to block or avoid the second gas flow channel.

[0011] Furthermore, the gas detection device also includes: a processor, which is disposed inside the housing and located above each mounting cavity; the processor is connected to each gas detection element respectively, and the processor is used to collect and process the data detected by each gas detection element.

[0012] Furthermore, the gas detection device also includes a limiting member disposed within the housing, located between the processor and the mounting cavity, the limiting member being used to limit the position of each gas detection element.

[0013] Furthermore, the housing includes: a housing body, on which multiple mounting slots, a gas inlet, and a gas outlet are provided; the mounting slots form a mounting cavity, and each mounting slot extends along the height direction of the housing body; and a cover, which is disposed on the housing body to seal the housing body so that a placement cavity is formed between the top of the housing body and the cover, and the processor is located in the placement cavity.

[0014] According to another aspect of the present invention, a mining gas monitoring device is provided, comprising: the gas detection device described above.

[0015] Beneficial effects:

[0016] The gas detection device provided by this utility model, using its technical solution, includes a housing and multiple gas detection elements. The housing has multiple mounting cavities, a gas inlet, and a gas outlet. The mounting cavities are arranged sequentially along a preset trajectory, with the cavity near the gas inlet connected to the gas inlet, and the cavity near the gas outlet connected to the gas outlet; furthermore, adjacent mounting cavities are interconnected. Each gas detection element is installed in its corresponding mounting cavity, and the number of mounting cavities is greater than or equal to the number of gas detection elements. Each gas detection element is specifically designed to detect a specific type of gas, enabling the device to comprehensively detect multiple gases in the air to be tested through the various gas detection elements. When the air to be tested enters the housing through the gas inlet, it flows sequentially into each mounting cavity along the preset trajectory. The air flowing into the mounting cavity is then analyzed by the gas detection element placed within it. The gas detection element can detect the corresponding gas component in the air to be tested, determine the presence of the gas component, and measure its concentration. Finally, the air to be tested, after being processed by the mounting cavities, will be discharged from the gas outlet. Therefore, by setting up multiple mounting chambers and multiple gas detectors, this gas detection device can simultaneously detect multiple gases in the air to be tested, thereby effectively improving the safety of miners and equipment users. Furthermore, by setting up multiple gas detectors, each specifically designed to detect a particular type of gas, accurate measurement of each gas component is ensured. Since each gas detector is responsible for only one gas, interference between different gas components is avoided, improving the purity and accuracy of the detection results. Simultaneously, the multiple mounting chambers are arranged sequentially along a preset trajectory, with adjacent chambers interconnected. This allows the air to be tested to enter each chamber sequentially along the designed path. This design ensures sufficient air enters the mounting chambers, allowing the gas detectors placed within to make full contact with the air, increasing the reliability of the detection and thus improving its accuracy and sensitivity. It also increases the gas flow rate, improving detection efficiency. In addition, the number of mounting chambers is greater than or equal to the number of gas detectors, allowing users to flexibly select the types of gases to be detected according to actual needs, further enhancing the adaptability and scalability of the gas detection device. The gas monitoring device of this invention effectively solves the technical problem that the gas detection components in existing mining gas monitoring equipment cannot simultaneously detect multiple gases in the air within the goaf. Attached Figure Description

[0017] Figure 1 A first-view schematic diagram of an embodiment of the gas detection device provided according to the present invention is shown;

[0018] Figure 2A second-view schematic diagram of an embodiment of the gas detection device provided according to the present invention is shown;

[0019] Figure 3 A third-view schematic diagram of an embodiment of the gas detection device provided according to the present invention is shown;

[0020] Figure 4 A fourth-view schematic diagram of an embodiment of the gas detection device provided according to the present invention is shown;

[0021] Figure 5 A schematic diagram of the structure of the gas detection device according to an embodiment of the gas detection device provided by the present invention, showing the gas detection device connected to the inlet pipe and the outlet pipe respectively.

[0022] The above figures include the following reference numerals:

[0023] 1. Housing; 11. Mounting cavity; 111. Air inlet; 112. Air outlet; 12. Gas input port; 13. Gas output port; 14. Housing body; 141. Mounting groove; 15. Cover; 2. Gas detection element; 20. Groove; 3. Boss; 31. First air guide port; 32. Second air guide port; 33. First air guide channel; 34. Second air guide channel; 4. Sealing element; 5. First gas flow channel; 6. Second gas flow channel; 7. Blocking element; 71. Blocking part; 8. Processor; 9. Limiting element; 10. Third gas flow channel; 100. Air inlet pipe; 200. Air outlet pipe; 300. Blocking block. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0025] Please see Figures 1 to 5According to an embodiment of the present invention, a gas detection device is provided, comprising: a housing 1 and a plurality of gas detection elements 2. The housing 1 is provided with a plurality of mounting cavities 11, a gas inlet 12 and a gas outlet 13. Each mounting cavity 11 is arranged sequentially along a preset trajectory, and adjacent mounting cavities 11 are connected. The mounting cavity 11 near the gas inlet 12 is connected to the gas inlet 12, and the mounting cavity 11 near the gas outlet 13 is connected to the gas outlet 13. Each gas detection element 2 is installed in a corresponding mounting cavity 11. Each gas detector corresponds to a different gas type, so that multiple gases in the air to be detected can be detected by each gas detection element 2. The number of mounting cavities 11 is greater than or equal to the number of gas detection elements 2. When the air to be detected enters the housing 1 through the gas inlet 12, the air to be detected flows sequentially into each mounting cavity 11 along a preset trajectory, and the corresponding gas detection element 2 in each mounting cavity 11 detects the corresponding gas in the air to be detected.

[0026] As can be seen, the gas detection device provided by this utility model includes: a housing 1 and multiple gas detection elements 2. The housing 1 is provided with multiple mounting cavities 11, a gas inlet 12, and a gas outlet 13. Each mounting cavity 11 is arranged sequentially along a preset trajectory, wherein the mounting cavity 11 near the gas inlet 12 is connected to the gas inlet 12, and the mounting cavity 11 near the gas outlet 13 is connected to the gas outlet 13; in addition, adjacent mounting cavities 11 are also interconnected. Each gas detection element 2 is installed in its corresponding mounting cavity 11, and the number of mounting cavities 11 is greater than or equal to the number of gas detection elements 2. Each gas detection element 2 is specifically used to detect a specific type of gas, thereby enabling the device to comprehensively detect multiple gases in the air to be tested through each gas detection element 2. When the air to be tested enters the housing through the gas inlet 12, the air will flow sequentially into each mounting cavity 11 along the preset trajectory. The air to be tested flowing into the mounting cavity 11 is then analyzed by the gas detection element 2 placed therein. The gas detector 2 can detect the corresponding gas components in the air to be tested, determine the presence of the gas components, and measure their concentration. Finally, the air to be tested, after being processed by the mounting cavity 11, will be discharged from the gas outlet 13.

[0027] Therefore, by setting multiple mounting chambers 11 and multiple gas detection elements 2, this gas detection device can simultaneously detect multiple gases in the air to be tested, thereby effectively improving the safety of miners and equipment users. Furthermore, by setting multiple gas detection elements 2, each specifically designed to detect a particular type of gas, accurate measurement of each gas component is ensured. Since each gas detection element 2 is responsible for only one gas, interference between different gas components is avoided, improving the purity and accuracy of the detection results. Simultaneously, the multiple mounting chambers 11 are arranged sequentially along a preset trajectory, with adjacent chambers 11 interconnected, allowing the air to be tested to enter each chamber 11 sequentially along the designed path. This design ensures sufficient air enters the mounting chambers 11, allowing the gas detection elements 2 placed within to fully contact the air, increasing the reliability of the detection and thus improving its accuracy and sensitivity. It also increases the gas flow rate, improving detection efficiency. In addition, the number of mounting chambers 11 is greater than or equal to the number of gas detection elements 2, allowing users to flexibly select the types of gases to be detected according to actual needs, further enhancing the adaptability and scalability of the gas detection device. The gas monitoring device of this invention effectively solves the technical problem that the gas detection components in existing mining gas monitoring equipment cannot simultaneously detect multiple gases in the air within the goaf.

[0028] Furthermore, such as Figure 1 As shown, the gas inlet 12 and the gas outlet 13 are located on the same side of the housing 1, and the gas inlet 12 and the gas outlet 13 are spaced apart.

[0029] Furthermore, such as Figure 5 As shown, the gas inlet 12 is used to connect to the air inlet pipe 100, and the air to be tested enters the housing 1 through the air inlet pipe 100 and the gas inlet 12 in sequence. The gas outlet 13 is used to connect to the air outlet pipe 200, and the tested air is discharged through the gas outlet 13 and the air outlet pipe 200.

[0030] Specifically, such as Figures 2 to 4As shown, each mounting cavity 11 is provided with an air inlet 111 and an air outlet 112. The air inlet 111 of the mounting cavity 11 closest to the gas inlet 12 is connected to the gas inlet 12, and the air outlet 112 of the mounting cavity 11 closest to the gas outlet 13 is connected to the gas outlet 13. The air outlet 112 of the upstream mounting cavity 11 of two adjacent mounting cavities is connected to the air inlet 111 of the downstream mounting cavity 11. With this structural arrangement, each mounting cavity 11 is provided with an air inlet 111 and an air outlet 112, ensuring that sufficient air to be tested enters and flows through each mounting cavity 11, allowing the gas detection element to fully contact the air, thereby improving the accuracy and sensitivity of the detection. Furthermore, this design also ensures that the air to be tested flows through each mounting cavity sequentially along a predetermined path, avoiding disordered flow or stagnation of the air to be tested within the device, thus improving detection efficiency. Meanwhile, the air outlet 112 in the upstream mounting cavity 11 of the two adjacent mounting cavities 11 is connected to the air inlet 111 in the downstream mounting cavity 11, which can ensure that the air flow in each mounting cavity 11 is independent and orderly, reduce the mutual interference between different gas components, and further improve the purity and reliability of the test results.

[0031] Furthermore, the air inlet 111 and the air outlet 112 are spaced apart.

[0032] Optionally, when the number of mounting cavities 11 is equal to the number of gas detection elements 2, each mounting cavity 11 is set in a one-to-one correspondence with each gas detection element 2, and in this case, each mounting cavity 11 is set in series.

[0033] Specifically, such as Figures 2 to 4 As shown, each air inlet 111 and each air outlet 112 is located at the bottom of the corresponding mounting cavity 11; each gas detection element 2 has a groove 20 at its bottom end, extending along the height of the corresponding gas detection element 2; the detection part of each gas detection element 2 is located within the corresponding groove 20; each groove 20 is connected to the corresponding air inlet 111 and air outlet 112, allowing the air to be detected to enter the groove 20. With this structural arrangement, the bottom of each gas detection element 2 has a groove 20, and each groove 20 is connected to the corresponding air inlet 111 and air outlet 112, ensuring that the air to be detected can smoothly flow into the groove 20 and fully contact the detection part of the gas detection element 2, improving the sensitivity and accuracy of the detection. Furthermore, it ensures that the air to be detected smoothly enters the groove 20 along a predetermined path, and that the air flowing into the groove 20 can flow out from its corresponding air outlet 112 along a predetermined path, thus avoiding disordered flow or stagnation and ensuring the accuracy of each detection.

[0034] Specifically, such as Figures 2 to 4As shown, the gas detection device further includes: multiple protrusions 3, each protrusion 3 corresponding to a corresponding mounting cavity 11, each protrusion 3 being installed in the corresponding mounting cavity 11, and each protrusion 3 protruding from the bottom wall of the corresponding mounting cavity 11; each protrusion 3 has an air inlet 111, an air outlet 112, a first air guide port 31, a second air guide port 32, a first air guide channel 33 communicating with the air inlet 111 and the first air guide port 31 respectively, and a second air guide channel 34 communicating with the air outlet 112 and the second air guide port 32 respectively, the first air guide channel 33 and the second air guide channel 34 being spaced apart, the air inlet 111 and the air outlet 112 being located at the top of the corresponding protrusion 3, and the first air guide port 31 and the second air guide port 32 being located on the bottom wall of the mounting cavity 11; wherein, the protrusion 3 is located below the corresponding groove 20, the protrusion 3 and the corresponding groove 20 are sealed together, and a detection cavity is formed between the protrusion 3 and the corresponding groove 20. With this structural design, the boss 3 and the corresponding groove 20 seal and cooperate, forming a sealed detection chamber. This ensures that the gas to be detected will not flow into other areas of the mounting cavity 11, thus avoiding stagnation and preventing inaccurate detection later, improving the purity and accuracy of the detection results. Furthermore, it allows sufficient time and space for the gas to be detected to diffuse and homogenize within the detection chamber, ensuring full contact between the detection part of the gas detection element 2 and the air to be detected, thereby improving the reliability and accuracy of the detection.

[0035] Optionally, each boss 3 is integrally formed with the housing body 14 of the housing 1.

[0036] Furthermore, both the first air guide channel 33 and the second air guide channel 34 extend along the extension direction of the boss 3.

[0037] Specifically, such as Figure 2 and Figure 3As shown, the gas detection device also includes multiple sealing elements 4, each corresponding to a plurality of mounting cavities 11 and a plurality of protrusions 3. Each sealing element 4 protrudes from the bottom wall of its corresponding mounting cavity 11 and surrounds its corresponding protrusion 3. The sealing elements 4 are used to seal the bottom end of the corresponding gas detection element 2 with the bottom wall of the mounting cavity 11. This structural arrangement, with the sealing elements 4 protruding from the bottom wall of the corresponding mounting cavity 11 and surrounding the corresponding protrusions 3, ensures precise alignment between the groove 20 and the protrusion 3 of the gas detection element 2. Furthermore, by placing the sealing elements 4 below the bottom end of the corresponding gas detection element 2, the edges of the groove 20 and the protrusion 3 are effectively sealed, thus enhancing the sealing performance of the detection cavity. This not only prevents the gas to be detected from flowing into other areas of the mounting cavity but also prevents interference from external gases, improving the purity and accuracy of the detection results.

[0038] Furthermore, the top of each seal 4 is flush with the top of the corresponding boss 3.

[0039] Optionally, the seal 4 is a sealing ring. The sealing ring is fitted onto the corresponding boss 3.

[0040] Optionally, the edge of the boss 3 is aligned with the edge of the corresponding groove 20.

[0041] Specifically, such as Figures 2 to 4As shown, the housing 1 also includes a first gas flow channel 5 and a second gas flow channel 6 that are connected to each other. The first gas flow channel 5 extends along a first preset direction, and the second gas flow channel 6 extends along a second preset direction. The input end of the first gas flow channel 5 is connected to the gas inlet 12, and the output end of the first gas flow channel 5 is connected to the input end of the second gas flow channel 6 through one of the mounting cavities 11. The output end of the second gas flow channel 6 is connected to the gas outlet 13. The remaining mounting cavities 11 in each mounting cavity 11 are arranged sequentially along the first preset direction and the second preset direction, and the air inlet 111 and air outlet 112 of each mounting cavity 11 are connected to the corresponding first gas flow channel 6. The gas detection device is connected to either the first gas flow channel 5 or the second gas flow channel 6. It also includes multiple sealing elements 7, each corresponding to one of the remaining mounting cavities 11. The sealing portion 71 of each sealing element 7 is movably disposed within the first gas flow channel 5 and the second gas flow channel 6, and the sealing portion 71 of each sealing element 7 is located between the inlet 111 and outlet 112 of the corresponding mounting cavity 11. The sealing portion 71 of the sealing element 7 located within the first gas flow channel 5 is used to block or avoid the first gas flow channel 5; the sealing portion 71 of the sealing element 7 located within the second gas flow channel 6 is used to block or avoid the second gas flow channel 6. This structural arrangement, by setting the first gas flow channel 5 and the second gas flow channel 6, allows gas to smoothly enter from one mounting cavity 11 to another. The remaining mounting cavities 11 in each mounting cavity 11 are arranged sequentially along a first preset direction and a second preset direction, and the air inlet 111 and air outlet 112 of each mounting cavity 11 are connected to the corresponding first gas flow channel 5 or second gas flow channel 6, ensuring that the air to be tested can smoothly enter and exit each mounting cavity 11, achieving precise gas control. Furthermore, by providing multiple sealing elements 7, with the sealing portion 71 of the sealing element 7 located in the first gas flow channel 5 used to block or avoid the first gas flow channel 5; and the sealing portion 71 of the sealing element 7 located in the second gas flow channel 6 used to block or avoid the second gas flow channel 6, the gas flow path can be flexibly selected according to the actual situation, improving the system's adaptability and operational flexibility. Moreover, when the sealing portion 71 of one sealing element 7 located in the first gas flow channel 5 blocks the first gas flow channel 5, the air to be tested can be guided to flow sequentially from the air inlet 111 and air outlet 112 of the corresponding mounting cavity 11. This sealing mechanism ensures that the gas has sufficient time and space to diffuse and homogenize within the specific mounting cavity, thereby improving the accuracy and reliability of the detection.

[0042] For example, there are six remaining mounting cavities 11 in each mounting cavity 11. These six mounting cavities 11 are divided into two groups of three. The three mounting cavities 11 in the first group are arranged sequentially along the extension direction of the first gas flow channel 5, and the three mounting cavities 11 in the second group are arranged sequentially along the extension direction of the second gas flow channel 6. There are four gas detection elements 2, which are respectively installed in two of the three mounting cavities 11 in the first group and in two of the three mounting cavities 11 in the second group. At this time, the sealing part of the sealing element 7 corresponding to the mounting cavity 11 with the gas detection element 2 blocks the first gas flow channel 5 and the second gas flow channel 6. Thus, when the air to be detected flows into the mounting cavity 11 with the gas detection element 2, it will enter the air inlet of the mounting cavity 11 and then flow out from the air outlet of the mounting cavity 11, ensuring sufficient contact and uniformity of the gas in the specific mounting cavity.

[0043] For example, when all the other mounting cavities 11 in each mounting cavity 11 are equipped with gas detection elements 2, the sealing part of each sealing element is in the sealing position, so that the mounting cavities 11 are arranged in series.

[0044] Furthermore, the sealing member 7 has a sealing state and an avoidance state. When the sealing member 7 is in the sealing state, one end of the sealing part 71 of the sealing member 7 passes through the first gas flow channel 5 or the second gas flow channel 6 and is inserted into the bottom wall of the corresponding mounting cavity 11 (i.e., the sealing part 71 of the sealing member 7 is in the sealing position). When the sealing member 7 is in the avoidance state, the sealing part 71 of the sealing member 7 is located in the inner wall of the first gas flow channel 5 or the inner wall of the second gas flow channel 6 (i.e., the sealing part 71 of the sealing member 7 is in the avoidance position).

[0045] Optionally, the sealing element 7 is a bolt, and the bolt thread forms the sealing portion 71 of the sealing element 7.

[0046] Furthermore, such as Figure 3 and Figure 4 As shown, when the gas detection element 2 is not installed in the mounting cavity 11, a sealing block 300 is installed in the mounting cavity 11. The sealing block 300 is arranged at intervals with the corresponding boss 3 in the mounting cavity 11, and its function is to seal the corresponding mounting cavity 11 to prevent the air to be detected from flowing into other areas of the housing 1 through the mounting cavity 11.

[0047] Optionally, the gas detection element 2 is a gas sensor, with each gas sensor specifically designed to detect a particular gas and its concentration.

[0048] Optionally, the gas detection device can detect methane (CH4), oxygen (O2), carbon monoxide (CO), carbon dioxide (CO2), hydrogen sulfide (H2S), acetylene (C2H2), and ethylene (C2H4) in the air within the goaf or roadway. It determines whether the air within the goaf or roadway contains methane (CH4), oxygen (O2), carbon monoxide (CO), carbon dioxide (CO2), hydrogen sulfide (H2S), acetylene (C2H2), and ethylene (C2H4), and what their concentrations are.

[0049] Furthermore, the gas detection device also includes a third gas flow channel 10 extending along a third preset direction. The third gas flow channel 10 is connected to the output end of the first gas flow channel 5 and the air inlet 111 of one of the mounting cavities 11. The air outlet of one of the mounting cavities 11 is connected to the second gas flow channel 6. The first preset direction, the second preset direction, and the third preset direction form a preset trajectory.

[0050] Optionally, the first gas flow channel 5 and the second gas flow channel 6 are arranged in parallel, with a preset trajectory of a U-shaped path.

[0051] Specifically, such as Figures 2 to 4 As shown, the gas detection device also includes a processor 8, which is disposed inside the housing 1 and located above each mounting cavity 11; the processor 8 is connected to each gas detector 2 respectively, and the processor 8 is used to collect and process the data detected by each gas detector 2.

[0052] Optionally, the processor 8 is a circuit board that also provides power to the various gas detectors 2.

[0053] Specifically, such as Figures 2 to 4 As shown, the gas detection device also includes a limiting member 9, which is disposed within the housing 1 and located between the processor 8 and the mounting cavity 11. The limiting member 9 is used to limit the position of each gas detection element 2. With this structural arrangement, by setting the limiting member 9, each gas detection element 2 can be restricted and fixed within its corresponding mounting cavity 11, preventing the gas detection element 2 from moving or shifting within the corresponding mounting cavity 11, thereby ensuring that the gas detection element 2 is always in the optimal working position.

[0054] Specifically, such as Figures 1 to 4 As shown, the housing 1 includes a housing body 14 and a cover 15. The housing body 14 is provided with a plurality of mounting grooves 141, a gas inlet 12 and a gas outlet 13. The mounting grooves 141 form a mounting cavity 11, and each mounting groove 141 extends along the height direction of the housing body 14. The cover 15 is disposed on the housing body 14 to seal the housing body 14 so that the top of the housing body 14 and the cover 15 form a placement cavity, and the processor 8 is located in the placement cavity.

[0055] Furthermore, the gas detection device adopts an explosion-proof design.

[0056] Optionally, the working process of the gas detection device is as follows:

[0057] Step 1: When it is necessary to detect whether the air in the goaf contains methane (CH4), oxygen (O2), carbon monoxide (CO), carbon dioxide (CO2), hydrogen sulfide (H2S), acetylene (C2H2), and ethylene (C2H4), the methane (CH4), oxygen (O2), carbon monoxide (CO), carbon dioxide (CO2), hydrogen sulfide (H2S), acetylene (C2H2), and ethylene (C2H4) gas sensors should be installed in their respective mounting cavities 11. Then, the sealing part 71 of the sealing element 7 corresponding to the mounting cavity 11 containing the gas sensors is connected to the mounting cavity 11 through the first gas flow channel 5 or the second gas flow channel 6, ensuring that the sealing element 7 is in a sealed state.

[0058] Step 2: After the gas detection device is installed, the collected air enters the first gas flow channel 5 through the inlet pipe 100 and the gas inlet port 12. It then follows a predetermined path into the first mounting cavity 11 containing the gas sensor, ensuring the air is within the sealed detection chamber and in full contact with the detection part of the gas sensor. Finally, the air flows out from the outlet of the mounting cavity 11 and sequentially passes through each of the mounting cavities 11 containing the gas sensors. When the air flows out from the outlet 112 of the last mounting cavity 11, it flows through the second gas flow channel 6 and the gas outlet port 13 to the outlet pipe 200 and is discharged through this pipe.

[0059] This utility model also provides a mining gas monitoring device, including: the gas detection device of the above embodiment.

[0060] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0061] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0062] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0063] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0064] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A gas detection device, characterized in that, include: The housing (1) is provided with multiple mounting cavities (11), a gas inlet (12) and a gas outlet (13). Each mounting cavity (11) is arranged sequentially along a preset trajectory, and two adjacent mounting cavities (11) are connected. The mounting cavity (11) near the gas inlet (12) is connected to the gas inlet (12), and the mounting cavity (11) near the gas outlet (13) is connected to the gas outlet (13). Multiple gas detectors (2) are installed in a corresponding mounting cavity (11); each gas detector (2) corresponds to a different gas type, so that multiple gases in the air to be tested can be detected by each gas detector (2); the number of mounting cavities (11) is greater than or equal to the number of gas detectors (2); When the air to be tested enters the housing (1) through the gas inlet (12), the air to be tested flows into each of the mounting cavities (11) sequentially along the preset trajectory, and the gas detection element (2) in the mounting cavity (11) detects the corresponding gas in the air to be tested.

2. The gas detection device according to claim 1, characterized in that, Each of the mounting cavities (11) is provided with an air inlet (111) and an air outlet (112). The air inlet (111) of the mounting cavity (11) near the gas inlet (12) is connected to the gas inlet (12). The air outlet (112) of the mounting cavity (11) near the gas outlet (13) is connected to the gas outlet (13). The air outlet (112) of the upstream mounting cavity (11) of two adjacent mounting cavities (11) is connected to the air inlet (111) of the downstream mounting cavity (11).

3. The gas detection device according to claim 2, characterized in that, Each of the air inlets (111) and each of the air outlets (112) is located at the bottom of the corresponding mounting cavity (11); each of the gas detection elements (2) has a groove (20) at its bottom end, the groove (20) extending along the height of the corresponding gas detection element (2); the detection part of each of the gas detection elements (2) is located in the corresponding groove (20); each of the grooves (20) is connected to the corresponding air inlet (111) and the air outlet (112) respectively, so that the air to be detected enters the groove (20).

4. The gas detection device according to claim 3, characterized in that, The gas detection device further includes: a plurality of protrusions (3), each of the protrusions (3) being correspondingly arranged in each of the mounting cavities (11), each of the protrusions (3) being installed in the corresponding mounting cavity (11), and each of the protrusions (3) protruding from the bottom wall of the corresponding mounting cavity (11); each of the protrusions (3) having an air inlet (111), an air outlet (112), a first air guide port (31), and a second air guide port (32), respectively connected to the air inlet (111). A first air guide channel (33) connected to the first air guide port (31), and a second air guide channel (34) connected to the air outlet (112) and the second air guide port (32) respectively. The first air guide channel (33) and the second air guide channel (34) are spaced apart. The air inlet (111) and the air outlet (112) are located at the top of the corresponding boss (3). The first air guide port (31) and the second air guide port (32) are located on the bottom wall of the mounting cavity (11). The boss (3) is located below the corresponding groove (20), the boss (3) and the corresponding groove (20) are sealed together, and a detection cavity is formed between the boss (3) and the corresponding groove (20).

5. The gas detection device according to claim 4, characterized in that, The gas detection device further includes: a plurality of sealing elements (4), which are respectively provided in correspondence with a plurality of mounting cavities (11) and a plurality of protrusions (3). Each sealing element (4) protrudes from the bottom wall of the corresponding mounting cavity (11) and surrounds the corresponding protrusion (3). The sealing elements (4) are used to seal the bottom end of the corresponding gas detection element (2) with the bottom wall of the mounting cavity (11).

6. The gas detection device according to claim 3, characterized in that, The housing (1) is further provided with a first gas flow channel (5) and a second gas flow channel (6) that are connected to each other. The first gas flow channel (5) extends along a first preset direction, and the second gas flow channel (6) extends along a second preset direction. The input end of the first gas flow channel (5) is connected to the gas inlet (12), and the output end of the first gas flow channel (5) is connected to the input end of the second gas flow channel (6) through one of the mounting cavities (11). The output end of the second gas flow channel (6) is connected to the gas outlet (13). The remaining mounting cavities (11) in each mounting cavity (11) are arranged sequentially along the first preset direction and the second preset direction, and the air inlet (111) and the air outlet (112) of each mounting cavity (11) are connected to the corresponding first gas flow channel (5) or second gas flow channel (6). The gas detection device further includes: a plurality of sealing components (7), each of the sealing components (7) being configured one-to-one with the remaining mounting cavities (11) in each of the mounting cavities (11), the sealing part (71) of each sealing component (7) being movably disposed in the first gas flow channel (5) and the second gas flow channel (6), and the sealing part (71) of each sealing component (7) being located between the air inlet (111) and the air outlet (112) of the corresponding mounting cavity (11); the sealing part (71) of the sealing component (7) located in the first gas flow channel (5) is used to block or avoid the first gas flow channel (5); the sealing part (71) of the sealing component (7) located in the second gas flow channel (6) is used to block or avoid the second gas flow channel (6).

7. The gas detection device according to claim 1, characterized in that, The gas detection device further includes a processor (8), which is disposed inside the housing (1) and located above each of the mounting cavities (11); the processor (8) is connected to each of the gas detection elements (2) respectively, and the processor (8) is used to collect and process the data detected by each of the gas detection elements (2).

8. The gas detection device according to claim 7, characterized in that, The gas detection device further includes a limiting member (9), which is disposed inside the housing (1) and located between the processor (8) and the mounting cavity (11). The limiting member (9) is used to limit each of the gas detection elements (2).

9. The gas detection device according to claim 7, characterized in that, The housing (1) includes: The housing body (14) is provided with a plurality of mounting slots (141), a gas inlet (12) and a gas outlet (13); the mounting slots (141) form the mounting cavity (11) and each mounting slot (141) extends along the height direction of the housing body (14); A cover (15) is disposed on the housing body (14) to seal the housing body (14) so ​​that a placement cavity is formed between the top of the housing body (14) and the cover (15), and the processor (8) is located in the placement cavity.

10. A mining gas monitoring device, characterized in that, include: The gas detection device according to any one of claims 1 to 9.

Images