Mine harmful gas detection device and detection method

Abstract

The invention discloses a mine harmful gas detection device and detection method, and belongs to the technical field of mine air detection. The gas detection device comprises a gas detection unit and an early warning unit and further comprises a control unit, the gas detection unit comprises a gas analysis mechanism and a gas collection mechanism, the gas collection mechanism is communicated with the external environment, and the early warning unit is connected with the gas analysis mechanism. The gas analysis mechanism is provided with an analysis module for concentration analysis and humidity analysis; the early warning unit comprises a signal receiving module, an early warning module and a logic control module, the early warning module is provided with an acousto-optic execution terminal part, and the signal receiving module is connected with the gas detection unit through the logic control module. The device is simple in structure, easy and convenient to manufacture and low in cost, harmful gas early warning response is carried out through mutual cooperation of the gas analysis mechanism and the early warning unit, workers know the safety level of the environment and whether the environment can pass or not according to different early warnings, and the safety of underground workers is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mine air detection, and more particularly relates to a mine harmful gas detection device and a detection method. BACKGROUND

[0002] With the deepening of mine depth and the expansion of mining scale, underground mines are facing more and more gas dangers, and for some non-closed idle mines, harmful gases may still continue to flow out from the surrounding rock strata of the mine into the mine. The accumulation and leakage of harmful gases such as carbon monoxide, carbon dioxide and sulfur dioxide can cause mine accidents, seriously threatening the life safety of miners and the normal mining of the mine. It is an urgent need in the current field to research and develop mine harmful gas detection equipment.

[0003] Moreover, excessive underground humidity will have adverse effects on the health of workers and will also pose a threat to equipment and mine safety production. High humidity makes it difficult for human sweat to evaporate, causing difficulty in body heat dissipation, making people feel hot and uncomfortable, and long-term exposure to such an environment may cause heat-related diseases such as heat stroke. Corrosion can reduce the strength of equipment, cause damage, shorten the service life of equipment, increase maintenance costs, and even cause equipment failure, affecting normal mining work.

[0004] At present, the gas detection related equipment used in the mine is difficult to adapt to the complex high-humidity environment. High humidity environment can affect the performance of electrical equipment and may cause electrical accidents such as short circuit, especially in mines with flammable gases such as gas, electrical accidents may cause more serious consequences such as explosion. Moreover, although the existing detection equipment can realize high intelligence and remote detection, the equipment cost is high, the use environment is limited, the operation of the equipment is cumbersome, and it is not convenient to carry, which cannot adapt to small mines and the detection of underground environment although the mine is idle. SUMMARY

[0005] The present application is aimed at the technical problems existing in the prior art, and provides a mine harmful gas detection device and a detection method.

[0006] To solve the above technical problems, the present application provides the following technical solutions:

[0007] A mine harmful gas detection device, comprising a gas detection unit and a warning unit, further comprising a control unit, the gas detection unit comprising a gas analysis mechanism and a gas collection mechanism, the gas collection mechanism being in communication with the external environment, the warning unit being connected with the gas analysis mechanism, the gas analysis mechanism being provided with an analysis module for concentration analysis and / or humidity analysis;

[0008] The early warning unit comprises a signal receiving module, an early warning module and a logic control module, the early warning module is electrically connected with the signal receiving module and the logic control module, the early warning module is provided with an audible and light executing terminal part, the signal receiving module is connected with the gas detection unit through the logic control module, the gas detection unit collects and detects the gas, and then transmits data to the signal receiving module through the logic control module, the signal receiving module judges whether the gas concentration exceeds the preset safety threshold, the signal receiving module receives the early warning instruction sent by the control unit and triggers the early warning through the early warning module.

[0009] Preferably, the gas analysis mechanism comprises a first analysis mechanism and a second analysis mechanism, the first analysis mechanism comprises a gas concentration analysis module, and the second analysis mechanism comprises a gas humidity analysis module, the first analysis mechanism and the second analysis mechanism are both communicated with the external environment through a gas collection mechanism, the gas collection mechanism comprises a gas conveying pipeline, a first end of the gas conveying pipeline is communicated with the external environment, and a second end of the gas conveying pipeline is provided with different branch points, and the different branch points are connected with the first analysis mechanism and the second analysis mechanism respectively.

[0010] Preferably, the gas collection mechanism comprises a gas conveying pipeline and gas collection parts and humidity collection parts connected on the gas conveying pipeline, and the gas collection parts and the humidity collection parts are arranged at gas inlet ends of the first analysis mechanism and the second analysis mechanism respectively.

[0011] The gas conveying pipeline comprises a gas inlet pipe and a gas guide pipe, and the gas guide pipe is communicated with the gas analysis mechanism and the gas collection parts and the humidity collection parts.

[0012] Preferably, the gas collection mechanism comprises a filtering part and a drying part, the filtering part is arranged at the first end of the gas conveying pipeline, and the drying part is connected with the gas concentration analysis module.

[0013] Preferably, the gas concentration analysis module comprises a CO detection module, a CO2 detection module, an H2S detection module, an SO2 detection module, an NO2 detection module and an explosive gas detection module, the gas humidity analysis module is used for detecting humidity components of underground air, and each detection module is connected with the early warning unit.

[0014] Preferably, the early warning unit is connected with the gas analysis mechanism through a data transmission line, and the gas analysis mechanism transmits data to the early warning unit through the data transmission line after detecting and analyzing different harmful gas concentrations.

[0015] The signal receiving module receives early warning data of the gas analysis mechanism, and then transmits an early warning signal of the signal receiving module to the early warning module through the logic control module, and the early warning module performs harmful gas early warning.

[0016] Preferably, the signal receiving module comprises a pre-warning receiver, the pre-warning module comprises a sound pre-warning module and a visual pre-warning module, the sound pre-warning module and the visual pre-warning module are each provided with a multi-stage warning mechanism, and the pre-warning module activates different gas pre-warning modes to give a warning according to different pre-warning signals.

[0017] Preferably, the control unit comprises a control operation part, the control operation part is provided with a start button and a stop button, and the control operation part is electrically connected with the energy component through a signal transmission line;

[0018] The start button is configured to generate a start control signal when triggered by pressing, the signal is converted into a start instruction through a signal processing module, and the start instruction is synchronously sent to the gas detection unit and the pre-warning unit through a transmission unit; the stop button is configured to generate a power-off control signal when triggered by pressing, the signal is analyzed to generate a system stop instruction after passing through the signal processing module, and the system stop instruction is synchronously sent to the gas detection unit and the pre-warning unit through the transmission unit.

[0019] Preferably, the gas detection device further comprises a clamping mechanism arranged on the outer surface of the gas detection device, the clamping mechanism comprises a clamping part and a fixed base, the clamping part and the fixed base form a clamping space with variable spacing, and the inner surface of the clamping part is provided with friction-enhancing lines.

[0020] Further, the present application also provides a mine harmful gas detection method, characterized by comprising the following steps:

[0021] The staff equips the mine harmful gas detection device in advance, and the device enters the mine with the staff;

[0022] When the staff enters the mine, the start button of the device is pressed, the device starts to run, the detection gas enters the gas guide pipe through the air inlet pipe, and then enters the gas collection part and the moisture collection part, the harmful gas and moisture in the environment air are collected into the gas collection mechanism;

[0023] The detection gas treated by the gas collection mechanism enters the first analysis mechanism and the second analysis mechanism through the gas guide pipe, the first analysis mechanism detects the index components such as CO, CO2, H2 S , SO2, NO2 and explosive gas in the gas, when the concentration of the harmful gas is too high, the first analysis mechanism transmits a pre-warning instruction to the pre-warning unit through a data transmission line; meanwhile, the second analysis mechanism detects the moisture component of the gas, when the concentration of the moisture is too high, the second analysis mechanism transmits a pre-warning instruction to the pre-warning unit through the data transmission line;

[0024] When the early warning unit receives the corresponding early warning instruction, early warning is made, when early warning is needed, the early warning receiver sends early warning signals to the early warning siren and the early warning warning light respectively, when harmful gas emission is too much and humidity is too heavy, the front is not passable, the early warning warning light will flash red light; when harmful gas emission is more and air is dry, the front needs to be cautious to pass, the early warning warning light will flash yellow light; when harmful gas emission is within a safe range and air is dry, the front can be safely passed, the early warning warning light will flash green light; in addition to the safe passing condition, the early warning siren will emit a siren alarm in other conditions;

[0025] Finally, when the device is used up, the device closing button is pressed, the device receives the closing device instruction, and the device stops running.

[0026] Compared with the prior art, the present application has the following beneficial effects:

[0027] The modules of the embodiment of the present application are connected through standardized interfaces, avoiding complex wiring and nested structures, and the structure is simple, the layout is compact, the detection device can be assembled with common materials on the construction site, the manufacturing is simple, the cost is low, and the safety of the underground workers can be guaranteed, under the control of the control unit, the gas collecting mechanism collects underground environmental gas, and through the cooperation of the gas analysis mechanism and the early warning unit, the environment is warned according to the harmful gas content and the gas humidity content in the process of signal transmission, the gas detection unit rapidly collects and detects the gas, and the early warning unit can rapidly issue an alarm according to the analysis result, without delay, the response is rapid, and the workers can understand the safety level of the environment and whether it can be passed according to different early warnings, thereby improving the safety of the underground workers. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 It is an internal structure diagram of the detection device embodiment of the present application;

[0030] Figure 2 It is a structure diagram of the shell body embodiment of the detection device of the present application;

[0031] Figure 3 It is a structure diagram of the gas analysis mechanism embodiment of the present application;

[0032] Figure 4 It is a structure diagram of the gas collecting mechanism embodiment of the present application;

[0033] Figure 5 Structure diagram of the early warning unit embodiment of the present application;

[0034] Figure 6 Structure diagram of the control unit embodiment of the present application;

[0035] Figure 7 Structure diagram of the carrying clamp embodiment of the present application.

[0036] Explanation of the symbols in the figure:

[0037] 1, gas analysis mechanism; 11, first analysis mechanism; 111, CO detection module; 112, CO2 detection module; 113, H2S detection module; 114, SO2 detection module; 115, NO2 detection module; 116, explosive gas detection module; 12, second analysis mechanism; 121, gas humidity analysis module; 2, gas collection mechanism; 21, gas pipeline; 211, gas inlet pipe; 212, first gas guide pipe; 213, second gas guide pipe; 22, gas collection part; 23, humidity collection part; 24, dust isolation net; 25, drying part; 3, early warning unit; 31, early warning receiver; 32, early warning siren; 33, early warning warning light; 4, shell body; 5, data transmission line; 6, start button; 61, start data line; 7, close button; 71, close data line; 8, energy cell; 81, transmission line; 9, carrying clamp; 91, fixed base; 92, clamping part. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the following will further describe the mine harmful gas detection device and detection method provided by the present application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0039] Embodiment 1

[0040] Please refer to Figure 1 The present embodiment provides a mine harmful gas detection device, which comprises a gas detection unit and an early warning unit 3, and further comprises a control unit. The gas detection unit comprises a gas analysis mechanism 1 and a gas collection mechanism 2. The gas collection mechanism 1 is in communication with the external environment. The early warning unit 3 is connected with the gas analysis mechanism 1. The gas analysis mechanism 1 is provided with an analysis module for concentration analysis and / or humidity analysis.

[0041] The early warning unit 3 comprises a signal receiving module, an early warning module and a logic control module, the early warning module is electrically connected with the signal receiving module and the logic control module, the early warning module is provided with an audible and light executing terminal part, the signal receiving module is connected with the gas detection unit through the logic control module, the gas detection unit collects and detects the gas, and then transmits data to the signal receiving module through the logic control module, the signal receiving module judges whether the gas concentration exceeds the standard according to a preset safety threshold, and the signal receiving module receives an early warning instruction sent by the control unit and triggers early warning through the early warning module.

[0042] The modules in the embodiment are connected through standardized interfaces, avoiding complex wiring and nested structures, and the structure is simple and compact, the detection device can be assembled by common materials on the construction site, and the device is simple to manufacture and low in cost, and the safety of the underground workers can be ensured, under the control of the control unit, the gas collecting mechanism 2 collects the underground environmental gas, the gas analysis mechanism 1 and the early warning unit 3 cooperate with each other, the environment is early warned according to the harmful gas content and the gas humidity content in the process of signal transmission, the gas detection unit rapidly collects and detects the gas, the early warning unit 3 can rapidly send an alarm according to the analysis result, and the response is rapid, the workers can understand the gas concentration of the underground environment according to different early warnings, and whether the front can be passed through is understood, and the safety of the underground workers is improved.

[0043] In the embodiment, as shown in Figure 2 The device body is a square box structure, which is provided with a shell body 4, an accommodating space is arranged in the shell body 4, and the modules are arranged in the shell body 4, the shell body 4 protects the internal devices, prevents the internal devices from being damaged by factors such as dust, humidity and collision in the underground environment, and thus the reliability and service life of the device are improved.

[0044] The device occupies a small space and has a regular structure, is convenient to install and convenient for workers to carry, the convenience and flexibility of detection work are improved, the shell body 4 can be made of high-strength, wear-resistant, corrosion-resistant stainless steel, alloy or composite reinforced plastic, has high reliability, can adapt to complex environments such as underground humidity and high temperature, and provides reliable protection for workers working underground.

[0045] Further, the shell body 4 adopts a detachable structure, which is convenient for equipment maintenance, when the equipment fails, the shell can be quickly disassembled, the problem is located and repaired, and the maintenance time is greatly shortened; and the detachable structure also facilitates replacement of parts, when a part needs to be replaced due to damage or aging, the entire device does not need to be disassembled complicatedly, and the corresponding part can be conveniently replaced by disassembling the shell, the maintainability and service life of the device are improved.

[0046] In the embodiment, as shown inFigure 1 As shown, the gas analysis mechanism 1 includes a first analysis mechanism 11 including a gas concentration analysis module and a second analysis mechanism 12 including a gas humidity analysis module, and the first analysis mechanism 11 and the second analysis mechanism 12 are both communicated with the external environment through the gas collection mechanism 2. The gas concentration analysis module and the gas humidity analysis module respectively detect and analyze the collected downhole gas, and after detection, the detection data is transmitted to the signal receiving module through the logic control module. The signal receiving module determines whether the gas concentration exceeds the standard according to the preset safety threshold, and the signal receiving module receives the early warning instruction issued by the control unit and triggers the early warning through the early warning module.

[0047] Specifically, as shown in Figure 1 , Figure 3 The first analysis mechanism 11 and the second analysis mechanism 12 are respectively arranged on the left and right sides inside the device housing body 4, and the first analysis mechanism 11 and the second analysis mechanism 12 are both connected with the gas collection mechanism 2 and the early warning unit 3, realizing the reception and detection of downhole gas and transmitting the gas data to the early warning unit 3 for gas early warning. The gas concentration analysis module mainly analyzes the harmful gas concentration in the downhole gas and does not analyze the gas humidity concentration, and the gas humidity analysis module mainly analyzes the humidity concentration in the downhole gas and does not analyze the harmful gas concentration, and they work together, reduce interference, and increase the accuracy and reliability of data detection.

[0048] In this embodiment, the gas concentration analysis module and the gas humidity analysis module are arranged adjacent to each other and work together to realize the detection and analysis of downhole harmful gas, which not only has compact layout, but also facilitates connection and interaction with other components.

[0049] Furthermore, the gas concentration analysis module includes a CO detection module 111, a CO2 detection module 112, an H2S detection module 113, an SO2 detection module 114, an NO2 detection module 115, and an explosive gas detection module 116, and the gas humidity analysis module 121 is used to detect the humidity composition of downhole air. Each detection module is connected with the early warning unit 3.

[0050] Specifically, each module is highly integrated, the CO detection module 111 is mainly used for detecting the CO component in the harmful gas in the mine, when the concentration of CO in the underground gas is too high, the first analysis mechanism 11 will transmit the warning instruction to the warning unit 3 through the data transmission line 5 to warn; the CO2 detection module 112 is mainly used for detecting the CO2 component in the harmful gas in the mine, when the concentration of CO2 in the underground gas is too high, the first analysis mechanism 11 will transmit the warning instruction to the warning unit 3 through the data transmission line 5 to warn; the H2S detection module 113 is mainly used for detecting the H2S component in the harmful gas in the mine, when the concentration of H2S in the underground gas is too high, the first analysis mechanism 11 will transmit the warning instruction to the warning unit 3 through the data transmission line 5 to warn; the SO2 detection module 114 is mainly used for detecting the SO2 component in the harmful gas in the mine, when the concentration of SO2 in the underground gas is too high, the first analysis mechanism 11 will transmit the warning instruction to the warning unit 3 through the data transmission line 5 to warn; the NO2 detection module 115 is mainly used for detecting the NO2 component in the harmful gas in the mine, when the concentration of NO2 in the underground gas is too high, the first analysis mechanism 11 will transmit the warning instruction to the warning unit 3 through the data transmission line 5 to warn; the explosive gas detection module 116 is mainly used for detecting the explosive gas component in the harmful gas in the mine, when the concentration of explosive gas in the underground gas is too high, the first analysis mechanism 11 will transmit the warning instruction to the warning unit 3 through the data transmission line 5 to warn.

[0051] In the embodiment, the gas humidity analysis module 121 is used for detecting the humidity component of the underground air, when the concentration of humidity in the gas is too high, the second analysis mechanism 12 will transmit the warning instruction to the warning unit 3 through the data transmission line 5 to warn.

[0052] Further, the number and specific type of the specific gas analysis module of the first analysis mechanism 11 can be adjusted according to the detection needs of the actual underground environment of the mine, and the type of the specific gas detection module can be adjusted as needed.

[0053] In the embodiment, as shown in Figure 1 , the gas collection mechanism 2 includes a gas conveying pipeline 21, the first end of the gas conveying pipeline 21 is communicated with the outside, the second end of the gas conveying pipeline 21 is provided with different branch points, and the different branch points are connected with the first analysis mechanism 11 and the second analysis mechanism 12 respectively.

[0054] Specifically, as shown in Figure 1 , Figure 4As shown, the gas collection mechanism 2 includes a gas pipeline 21, and a gas collection part 22 and a moisture collection part 23 connected to the gas pipeline 21. The gas collection part 22 and the moisture collection part 23 are respectively arranged at the gas inlet end of the first analysis mechanism 11 and the second analysis mechanism 12. The downhole gas entering through the gas pipeline 21 is collected and processed by the gas collection part 22 and the moisture collection part 23, and then enters the first analysis mechanism 11 and the second analysis mechanism 12 for gas detection and analysis.

[0055] The gas pipeline 21 includes a gas inlet pipe 211 and a gas guide pipe. The gas guide pipe is connected to the gas collection part 22 and the moisture collection part 23 of the gas analysis mechanism 1. The gas guide pipe includes a first gas guide pipe 212 and a second gas guide pipe 213. One end of the gas inlet pipe 211 is connected to an external environment to facilitate gas collection. The second end of the gas inlet pipe 211 is Y-shaped, and two branches are respectively connected to the first gas guide pipe 212 and the second gas guide pipe 213. The other ends of the first gas guide pipe 212 and the second gas guide pipe 213 are respectively connected to the first analysis mechanism 11 and the second analysis mechanism 12.

[0056] In this embodiment, the gas collection part 22 is used to collect harmful gases in the downhole collected gas except moisture. The gas collection part 22 is arranged between the gas inlet pipe 211 and the first gas guide pipe 212. The collected gas sequentially passes through the gas inlet pipe 211, the gas collection part 22, and then enters the first analysis mechanism 11 through the first gas guide pipe 212. The moisture collection part 23 is used to collect moisture in the downhole collected gas. The moisture collection part 23 is arranged between the gas inlet pipe 211 and the second gas guide pipe 213. The collected gas sequentially passes through the gas inlet pipe 211, the moisture collection part 23, and then enters the second analysis mechanism 12 through the second gas guide pipe 213.

[0057] Further, the gas collection mechanism 2 further includes a filter part and a drying part 25. The filter part is arranged at the first end of the gas pipeline 21, and the drying part is connected to the gas concentration analysis module.

[0058] Specifically, the filter part includes a dust isolation net 24. The dust isolation net 24 is arranged at the inlet end of the gas inlet pipe 211. The collected gas is filtered through the dust isolation net 24 to prevent excessive dust in the downhole environment gas from entering the pipeline, thereby affecting the gas detection unit to collect gas and reasonably analyze the harmful gas concentration. It can ensure that the gas detection unit can normally collect gas and accurately analyze the harmful gas concentration. If excessive dust enters the pipeline, it may interfere with the work of the gas detection unit, resulting in inaccurate harmful gas concentration analysis and affecting the safety judgment of the downhole environment.

[0059] Further, the drying part 25 is arranged in the gas collecting part 22, the drying part 25 can dry the humidity, can create good conditions for the subsequent harmful gas component and concentration detection, ensure that there is no humidity in the gas entering the first analysis mechanism 11, can accurately detect the harmful gas component and concentration, prevent the humidity from interfering with the detection of other indicators, improve the reliability of the overall detection.

[0060] In the embodiment, as shown in the figure, Figure 3 The warning unit 3 is connected with the gas analysis mechanism 1 through the data transmission line 5, and the gas analysis mechanism 1 transmits data to the warning unit 3 through the data transmission line 5 after reasonable analysis according to different harmful gas concentrations.

[0061] Specifically, the signal receiving module receives the warning data of the gas analysis mechanism 1, and then transmits the warning signal of the signal receiving module to the warning module through the logic control module, and the warning module performs harmful gas warning.

[0062] As shown in the figure, Figure 5 The signal receiving module includes a warning receiver 31, and the warning module includes a sound warning module and a visual warning module, and the sound warning module and the visual warning module are both provided with a multi-level warning mechanism, and the warning module activates different gas warning modes to alarm according to different warning signals.

[0063] In the embodiment, the sound warning module includes a warning siren 32, and the visual warning module includes a warning warning light 33, the warning siren 32 has different sound modes of warning, and the warning warning light 33 has different light flashing modes of red, yellow and green, the gas analysis mechanism 1 transmits data to the warning unit 3 through the data transmission line 5 after reasonable detection and analysis according to different harmful gas concentrations, if warning is needed, the warning receiver 31 will send warning signals to the warning siren 32 and the warning warning light 33 respectively, the warning warning light 33 will flash red, yellow or green according to actual different situations, and the warning siren 32 will also sound the siren alarm, and different emergency levels and danger warnings are transmitted through different colors, flashing modes and different sound modes.

[0064] Since the warning unit 3 is connected with the gas analysis mechanism 1 through the data transmission line 5, when the collected external harmful gas is sucked to the gas analysis mechanism 1 through the gas pipeline 21 for detection, the gas analysis mechanism 1 transmits data to the warning unit 3 through the data transmission line 5 after reasonable analysis according to different harmful gas concentrations and humidity indexes, and the warning unit 3 makes corresponding warning. The detection device of the present application responds quickly, and the warning siren 32 and the warning warning light 33 are used to warn the workers and the adjacent personnel of the harmful gas, so as to remind the workers to pay attention to abnormal conditions and ensure that the workers and production are in a safe state.

[0065] As shown in the figure, Figure 6As shown, in the embodiment, the control unit includes a control operation part, which is provided with a start button 6 and a stop button 7, and the control operation part is electrically connected to the energy component through a signal transmission line.

[0066] Specifically, the signal transmission line includes a start data line 61 and a stop data line 71, and the start button 6 and the stop button 7 are connected to the energy component through the start data line 61 and the stop data line 71 respectively. The energy component is provided with an energy battery 8, the start button 6 is connected to the energy battery 8 through the start data line 61, and the stop button 7 is connected to the energy battery 8 through the stop data line 71. The start button 6 is configured to generate a start control signal when triggered by pressing, the signal is converted into a start instruction through a signal processing module, and the start instruction is synchronously sent to the gas detection unit and the early warning unit 3 through a transmission unit. The stop button 7 is configured to generate a power-off control signal when triggered by pressing, and the signal is analyzed by the signal processing module to generate a system shutdown instruction, and the synchronous power-off instruction is sent to the gas detection unit and the early warning unit 3 through the transmission unit.

[0067] Therefore, when the detection device is used and the start button 6 is pressed, the current in the energy battery 8 will send the start device instruction to the gas analysis mechanism 1, the gas collection mechanism 2 and the early warning unit 3 through the transmission line 81, and the three devices start to operate; when the stop button 7 is pressed, the current in the energy battery 8 will send the stop device instruction to the gas analysis mechanism 1, the gas collection mechanism 2 and the early warning unit 3 through the transmission line 81, and the three devices stop operating.

[0068] Further, in the embodiment, a clamping mechanism is also included, which is arranged on the outer surface of the gas detection device. The clamping mechanism includes a clamping part with elastic deformation and a fixed base, and the clamping part and the fixed base form a clamping space with variable spacing. The inner surface of the clamping part is provided with friction-enhancing lines to increase the stability of clamping and prevent falling.

[0069] Specifically, as shown, Figure 7 The clamping mechanism includes a carrying clamp 9, which is fixed to the side edge of the housing body 4 through the fixed base 91. The connection mode includes but is not limited to one-piece molding, buckle connection, screw fixing and the like. The clamping part 92 is configured to achieve non-damage clamping of the edge of the clothes through elastic restoring force. The device is carried and clamped by the clamping part 92, which is not only convenient to carry, easy to install and take, suitable for mobile operation environment, but also stable clamping, which can be clamped at the collar, pocket, waistband or other positions of the worker as needed during use, convenient for the worker to carry for underground harmful gas detection, can free the hands of the worker, and the device can automatically run detection and warning, realize monitoring of the surrounding environment, discover abnormal conditions in time and issue an alarm, and ensure the safety of the worker.

[0070] Embodiment 2

[0071] The embodiment of the present application provides a mine harmful gas detection method, characterized in that the method comprises the following steps:

[0072] The staff equips the mine harmful gas detection device in advance, and the device follows the staff into the mine;

[0073] When the staff enters the mine, the device starts to run after the start button 6 is pressed, and the detection gas enters the gas guide pipe from the air inlet pipe 211, and then enters the gas collection part 22 and the moisture collection part 23, and the harmful gas and moisture in the environment air are collected into the gas collection mechanism 2;

[0074] The detection gas treated by the gas collection mechanism 2 enters the first analysis mechanism 11 and the second analysis mechanism 12 through the gas guide pipe, the first analysis mechanism 11 detects the index components such as CO, CO2, H2 S , SO2, NO2 and explosive gas in the gas, when the harmful gas concentration is too high, the first analysis mechanism 11 transmits the early warning instruction to the early warning unit 3 through the data transmission line 5; meanwhile, the second analysis mechanism 12 detects the moisture component of the gas, and when the moisture concentration is too high, the second analysis mechanism 12 transmits the early warning instruction to the early warning unit 3 through the data transmission line 5;

[0075] When the early warning unit 3 receives the corresponding early warning instruction, the early warning is made, when the early warning is needed, the early warning receiver 31 sends the early warning signal to the early warning siren 32 and the early warning warning light 33 respectively, when the harmful gas is discharged too much and the moisture is too heavy, the front cannot be passed, the early warning warning light 33 flashes red light; when the harmful gas is discharged more and the air is dry, the front needs to be cautious to pass, the early warning warning light 33 flashes yellow light; when the harmful gas is discharged within a safe range and the air is dry, the front can be safely passed, the early warning warning light 33 flashes green light; except that the safe passing condition, the early warning siren 32 will emit the siren alarm in other conditions;

[0076] Finally, when the device is used up, the device is stopped running after the device closing button 7 is pressed.

[0077] Further, as a preferred embodiment of the present application, the device connection mode of the present application can be adjusted according to the actual use scene, and the device of the present application is simple to manufacture, each component can be combined by the materials or electronic devices commonly used in the construction site, and the cost is low and the device is convenient to assemble and disassemble.

[0078] The application provides a portable mine harmful gas detection device and detection method, which ensures the safety of mine workers by detecting the concentration of harmful gas and humidity in advance. Under the control of the control unit, after the start button 6 is pressed, the gas collection mechanism 2 starts to collect the underground environment gas, then the gas analysis mechanism 1 analyzes the concentration of harmful gas underground, through the cooperation of the gas analysis mechanism 1 and the early warning unit 3, the external harmful gas and humidity are sucked into the gas analysis mechanism 1 through the gas pipeline 21 for detection, then the gas analysis mechanism 1 reasonably analyzes the different harmful gas concentrations, and transmits the data to the early warning unit 3 through the data transmission line 5, and the early warning unit 3 makes corresponding early warning. When it is detected that the concentration of harmful gas in front is too high, the early warning receiver 31 in the early warning unit 3 receives the early warning instruction, and the early warning siren 32 issues an alarm, and the early warning warning light 33 flashes a red light to remind the workers to pay attention to the excessive accumulation of harmful gas in front.

[0079] After use, the device can be turned off by pressing the off button 7, the harmful gas can be monitored in real time, and the worker can carry the device conveniently, the carrying clamp 9 is arranged outside the detection device, the worker can clamp the gas detection device on the collar or pocket, and the device is convenient to assemble and disassemble. The modules of the application are connected through standardized interfaces, avoiding complex wiring and nested structures, and the structure is simple, the layout is compact, and the detection device can be assembled by using common materials on the construction site, and the device is convenient to manufacture, low in cost, and can be carried on the body. Moreover, the gas detection unit can rapidly collect and detect the underground environment gas, the early warning unit can rapidly issue an alarm according to the analysis result, there is no delay, the early warning response is rapid, the worker can understand the gas concentration and safety level of the underground environment according to different early warnings, and whether the front can be passed, and the safety of the underground operation personnel is improved.

[0080] In the description of the application, it should be understood that the orientation or positional relationship indicated by terms such as 'length', 'width', 'upper', 'lower', 'front','rear', 'left', 'right','vertical', 'horizontal', 'top', 'bottom', 'inner', 'outer' and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0081] In addition, the terms 'first','second' are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as 'first','second' can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of 'a plurality of' is two or more, unless otherwise specifically limited.

[0082] The above only describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mine harmful gas detection device comprising a gas detection unit and a pre-warning unit, characterized in that, The gas detection unit comprises a gas analysis mechanism and a gas collection mechanism, the gas collection mechanism is communicated with the external environment, the early warning unit is connected with the gas analysis mechanism, and the gas analysis mechanism is provided with an analysis module for concentration analysis and / or humidity analysis; The early warning unit comprises a signal receiving module, an early warning module and a logic control module, the early warning module is electrically connected with the signal receiving module and the logic control module, the early warning module is provided with an audible and visual execution terminal component, the signal receiving module is connected with the gas detection unit through the logic control module, the gas detection unit collects and detects the gas and then transmits data to the signal receiving module through the logic control module, the signal receiving module judges whether the gas concentration exceeds the standard according to a preset safety threshold, and the signal receiving module receives an early warning instruction sent by the control unit and triggers early warning through the early warning module.

2. The mine harmful gas detection device according to claim 1, characterized in that, The gas analysis mechanism comprises a first analysis mechanism and a second analysis mechanism, the first analysis mechanism comprises a gas concentration analysis module, the second analysis mechanism comprises a gas humidity analysis module, the first analysis mechanism and the second analysis mechanism are both communicated with the external environment through a gas collection mechanism, the gas collection mechanism comprises a gas conveying pipeline, a first end of the gas conveying pipeline is communicated with the external environment, and a second end of the gas conveying pipeline is provided with different branch points, and the different branch points are connected with the first analysis mechanism and the second analysis mechanism respectively.

3. A mine gas detection device according to claim 2, characterised in that, The gas collection mechanism comprises a gas conveying pipeline and gas collection parts and humidity collection parts connected on the gas conveying pipeline, and the gas collection parts and the humidity collection parts are arranged at gas inlet ends of the first analysis mechanism and the second analysis mechanism respectively. The gas conveying pipeline comprises a gas inlet pipe and a gas guide pipe, and the gas guide pipe is communicated with the gas analysis mechanism, the gas collection part and the humidity collection part.

4. The mine harmful gas detection device according to claim 2, characterized in that, The gas collection mechanism comprises a filtering part and a drying part, the filtering part is arranged at the first end of the gas conveying pipeline, and the drying part is connected with the gas concentration analysis module.

5. The mine harmful gas detection device according to claim 2, characterized in that, The gas concentration analysis module comprises a CO detection module, a CO2 detection module, an H2S detection module, an SO2 detection module, an NO2 detection module and an explosive gas detection module, and the gas humidity analysis module is used for detecting humidity components of underground air, and each detection module is connected with the early warning unit.

6. The mine harmful gas detection device according to claim 1, characterized in that, The early warning unit is connected with the gas analysis mechanism through a data transmission line, the gas analysis mechanism detects and analyzes different harmful gas concentrations, and then transmits data to the early warning unit through the data transmission line; The signal receiving module receives early warning data of the gas analysis mechanism, and then transmits an early warning signal of the signal receiving module to the early warning module through the logic control module, and the early warning module performs harmful gas early warning.

7. A mine gas detection device according to claim 6, characterised in that, The signal receiving module comprises an early warning receiver, the early warning module comprises a sound early warning module and a visual early warning module, the sound early warning module and the visual early warning module are both provided with a multi-level warning mechanism, and the early warning module activates different gas early warning modes to perform warning according to different early warning signals.

8. The mine harmful gas detection device according to claim 1, characterized in that, The control unit includes a control operation unit, which is equipped with a start button and a stop button. The control operation unit is electrically connected to the energy component through a signal transmission line. The start button is configured to generate a start control signal when pressed, and the signal is converted into a start command by the signal processing module and sent synchronously to the gas detection unit and the early warning unit through the transmission unit; the stop button is configured to generate a power-off control signal when pressed, and the signal is parsed by the signal processing module to generate a system shutdown command, which is sent synchronously to the gas detection unit and the early warning unit through the transmission unit.

9. The mine harmful gas detection device according to claim 1, characterized in that, It also includes a clamping mechanism, which is disposed on the outer surface of the gas detection device. The clamping mechanism includes a clamping part with elastic deformation and a fixed base. The clamping part and the fixed base form a clamping space with a variable spacing. The inner surface of the clamping part is provided with friction-enhancing texture.

10. A method of detecting harmful gases in a mine, characterized by, Includes the following steps: Staff members were equipped with mine hazardous gas detection devices in advance, and the devices accompanied the staff into the mine. When the staff enters the mine, they press the device start button and the device starts to run. The gas to be detected will enter the gas guide pipe through the air inlet pipe, and then enter the gas collection section and the moisture collection section. Harmful gases and moisture in the ambient air are collected and enter the gas collection mechanism respectively. The detection gas treated by the gas collection mechanism enters into the first analysis mechanism and the second analysis mechanism through the gas guide pipe, the first analysis mechanism detects the index components such as CO, CO2, H2 S , SO2, NO2, explosive gas and the like in the gas, when the concentration of the harmful gas is too high, the first analysis mechanism transmits the early warning instruction to the early warning unit through the data transmission line; meanwhile, the second analysis mechanism detects the moisture component of the gas, when the moisture concentration is too high, the second analysis mechanism transmits the early warning instruction to the early warning unit through the data transmission line; Upon receiving the corresponding warning command, the warning unit issues a warning. When a warning is required, the warning receiver sends warning signals to the warning siren and warning lights respectively. When there is excessive emission of harmful gases or high humidity, the road ahead is impassable, and the warning lights will flash red. When there is a relatively large emission of harmful gases or dry air, caution is advised when proceeding, and the warning lights will flash yellow. When the emission of harmful gases is within a safe range and the air is dry, the road ahead is safe to pass, and the warning lights will flash green. Except in cases where it is safe to pass, the warning siren will sound an alarm. Finally, when the device is finished being used, press the device shutdown button. The device will receive a shutdown command and stop operating.

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