CN211426401U - Intelligent methane sensor for coal mine - Google Patents
Intelligent methane sensor for coal mine Download PDFInfo
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- CN211426401U CN211426401U CN202020015879.8U CN202020015879U CN211426401U CN 211426401 U CN211426401 U CN 211426401U CN 202020015879 U CN202020015879 U CN 202020015879U CN 211426401 U CN211426401 U CN 211426401U
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- Prior art keywords
- methane
- machine body
- sensor
- alarm
- electrically connected
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 158
- 239000003245 coal Substances 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 description 5
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model discloses an intelligent methane sensor for coal mines, which comprises a machine body, a control panel arranged at the inner side of the machine body, a nixie tube display, a buzzer alarm, an LED alarm and a methane gas sensitive sensing element, wherein the nixie tube display, the buzzer alarm, the LED alarm and the methane gas sensitive sensing element are arranged on the machine body and are electrically connected with the control panel; the controller and the power supply end of the control panel are respectively and electrically connected with a four-core plug fixed at the bottom of the machine body; the four-core plug is connected to a power supply end and an alarm end of the power failure instrument through a four-wire cable; the controller also comprises at least one input/output plug electrically connected with the controller I/O port of the control board; the utility model discloses an intelligent methane sensor for coal mine, complete machine adopt totally closed structure, and lead wire and organism are kept apart completely to through the outside setting of parameter, the sensor does not have the part that adjustment hole and needs were adjusted, and sealing performance is good, and the sensor can cooperate the methane outage appearance to accomplish the environment allies oneself with the accuse, can form the mode of shaking hands that each other is the host computer with adjacent methane sensor simultaneously.
Description
Technical Field
The utility model relates to a methane sensor, concretely relates to intelligent methane sensor for coal mine belongs to coal mine gas monitoring devices technical field.
Background
The methane sensor is applied to a coal mine safety detection system, is used for continuously monitoring the methane concentration in a coal mine roadway, a mining working face, a goaf, an air return roadway, an electromechanical chamber and the like, can automatically give out sound and light alarm when the methane concentration exceeds the limit, can be carried about by coal mine underground operators, methane detection personnel, underground management personnel and the like, and can also be fixedly used in the places; the existing methane sensor has poor sealing performance, only carries out island type monitoring alarm, and has poor monitoring effect.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an intelligent methane sensor for coal mine, the complete machine adopts totally closed structure, and adopts independent bin with methane gas sensitive sensing element and each joint to keep apart through the pouring seal with the bin of host computer, the whole leakproofness of sensor is good, and the sensor can take place alarm signal to other sensors of same region, also can receive other sensor alarm signal of same region simultaneously.
The intelligent methane sensor for the coal mine adopts the thermal catalysis principle probe to monitor the low-concentration methane gas, and is suitable for measuring the methane concentration in the coal mine in the places with gas explosion danger; the sensor has the functions of semi-automatic zero setting, full degree setting, alarm point setting and power-off point setting, all functions can be set through infrared remote control, and the sensor has the functions of ultralimit acousto-optic alarm and ultralimit power-off signal output; the sensor has no adjusting hole and part needing to be adjusted, the sealing performance is good, and the work is stable and reliable; the sensor has various signal output forms and can be compatible with other coal mine monitoring systems; the fire detector can also be independently used for various mine fire detection systems; the methane gas-sensitive sensing element detects the concentration of methane, converts the methane gas-sensitive sensing element into an electrical signal, amplifies the signal voltage output by the measuring bridge through the amplifying circuit, transmits the signal voltage to the A/D converter for conversion, converts the signal voltage into a digital signal, transmits the digital signal to the singlechip for processing, displays the concentration value of the methane through the display circuit, and outputs a frequency signal corresponding to the concentration value of the methane through the output control circuit; the alarm/power-off circuit consists of a light-emitting diode, a buzzer and a control driving circuit, when the concentration of methane exceeds a set alarm point, the sensor can send out sound and light alarm signals, and when the concentration of methane exceeds the set power-off point, the sensor outputs a power-off signal; after the methane concentration exceeds the power-off point, the sensor releases the power-off signal output only when the methane concentration is reduced to be below a set power-on point; when the methane sensor works in a certain communication area behind a passageway, input and output plugs of adjacent methane sensors need to be connected through connecting wires, and when the methane sensor is applied to a vehicle and does not need to be linked, locking sleeves of corresponding ports need to be sealed through bolts; when the connection of adjacent input and output plugs is completed, when a certain methane sensor detects an alarm signal, the methane sensor firstly alarms by itself and simultaneously serves as a host to send the alarm signal to the methane sensor (serving as a response end) connected with the methane sensor, the response end receives the alarm signal, the sound-light alarm is synchronously started, and a display screen of the response end displays the methane data detected by the response end or directly turns off the screen; only when the methane concentration is reduced below a set alarm removing point, the sensor removes an alarm signal of a response end; the concrete structure is as follows: the methane gas sensor comprises a machine body, a control panel arranged on the inner side of the machine body, a nixie tube display, a buzzer alarm, an LED alarm and a methane gas sensitive sensing element, wherein the nixie tube display, the buzzer alarm, the LED alarm and the methane gas sensitive sensing element are arranged on the machine body and are electrically connected with the control panel; the controller and the power supply end of the control panel are respectively and electrically connected with a four-core plug fixed at the bottom of the machine body; the four-core plug is connected to a power supply end and an alarm end of the power failure instrument through a four-wire cable; the controller also comprises at least one input/output plug electrically connected with the controller I/O port of the control board; a lower bin body is integrally formed at the bottom of the machine body; the lower bin body is provided with three compartments; a multi-ring detection through hole is formed in the bottom of the middle partition; an opening is formed in the front side of the lower bin body; a convex edge is arranged at the opening; a cover plate is fixed at the convex edge through a bolt; a multi-ring detection through hole is formed in the middle of the back face of the cover plate and the back face of the lower bin body opposite to the compartment; the four-core plug and the input/output plug are arranged on the inner side of the lower bin body, and a pouring sealing layer is arranged at the position of the four-core plug and a perforation of the machine body; a locking sleeve is arranged at the bottom of the lower bin body; the input and output plug is electrically connected to the adjacent methane sensor, and the locking sleeve introduces an external lead and holds the external lead tightly; thereby being isolated from the outside; the machine body and the lower bin body are completely separated by a pouring layer.
Furthermore, the locking sleeve comprises a tube seat, and a convex cylindrical through hole is formed in the inner side of the tube seat; an elastic seat is arranged on the inner side of the cylindrical through hole; the inner side of the cylindrical through hole is screwed with a nut tube seat which is pressed with the elastic seat; through connect the nut tube seat soon, can axial compression elastic seat, the elastic seat outside receives the restriction of cylindricality through-hole inner wall to compress tightly the cable outside, seal the isolation and compress tightly the fastening to cable entry outside.
Preferably, a hanging hook is arranged at the top of the machine body.
Furthermore, the four-core plug is a power input interface and a signal output interface, and the four cores of the four-core plug are a power supply plus pin, a signal output plus pin and a null pin respectively; the input and output plug is a signal input interface and a second signal output interface; the signal input interface comprises a signal input plus pin and a signal input plus pin; the second signal output interface includes a second signal output + pin and a second signal output-pin.
Furthermore, an infrared receiver communicated with the infrared remote control board is also arranged on the control board; the infrared remote control board comprises a remote control board body, an infrared transmitting circuit arranged on the inner side of the remote control board body, and an on-off key, a rising key, a falling key, a conversion key and a setting key which are arranged on the remote control board body and are respectively and electrically connected with the infrared transmitting circuit.
Compared with the prior art, the utility model discloses an intelligent methane sensor for coal mine, complete machine adopt totally enclosed structure, and lead wire and organism are kept apart completely to through the outside setting of parameter, the sensor does not have the part that adjustment hole and needs adjusted, and sealing performance is good, and the sensor can cooperate the methane outage appearance to accomplish the environment allies oneself with the accuse, can form the mode of shaking hands that each other is the host computer with adjacent methane sensor simultaneously.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.
Fig. 2 is the internal structure of the lower bin of the utility model.
Detailed Description
Example 1:
as shown in fig. 1 and 2, the intelligent methane sensor for coal mines of the utility model adopts a thermal catalysis principle probe to monitor low-concentration methane gas, and is suitable for measuring methane concentration in places with gas explosion danger in coal mines; the sensor has the functions of semi-automatic zero setting, full degree setting, alarm point setting and power-off point setting, all functions can be set through infrared remote control, and the sensor has the functions of ultralimit acousto-optic alarm and ultralimit power-off signal output; the sensor has no adjusting hole and part needing to be adjusted, the sealing performance is good, and the work is stable and reliable; the sensor has various signal output forms and can be compatible with other coal mine monitoring systems; the fire detector can also be independently used for various mine fire detection systems; the methane gas-sensitive sensing element detects the concentration of methane, converts the methane gas-sensitive sensing element into an electrical signal, amplifies the signal voltage output by the measuring bridge through the amplifying circuit, transmits the signal voltage to the A/D converter for conversion, converts the signal voltage into a digital signal, transmits the digital signal to the singlechip for processing, displays the concentration value of the methane through the display circuit, and outputs a frequency signal corresponding to the concentration value of the methane through the output control circuit; the alarm/power-off circuit consists of a light-emitting diode, a buzzer and a control driving circuit, when the concentration of methane exceeds a set alarm point, the sensor can send out sound and light alarm signals, and when the concentration of methane exceeds the set power-off point, the sensor outputs a power-off signal; after the methane concentration exceeds the power-off point, the sensor releases the power-off signal output only when the methane concentration is reduced to be below a set power-on point; when the methane sensor works in a certain communication area behind a passageway, input and output plugs of adjacent methane sensors need to be connected through connecting wires, and when the methane sensor is applied to a vehicle and does not need to be linked, locking sleeves of corresponding ports need to be sealed through bolts; when the connection of adjacent input and output plugs is completed, when a certain methane sensor detects an alarm signal, the methane sensor firstly alarms by itself and simultaneously serves as a host to send the alarm signal to the methane sensor (serving as a response end) connected with the methane sensor, the response end receives the alarm signal, the sound-light alarm is synchronously started, and a display screen of the response end displays the methane data detected by the response end or directly turns off the screen; only when the methane concentration is reduced below a set alarm removing point, the sensor removes an alarm signal of a response end; the concrete structure is as follows: the methane gas sensor comprises a machine body 1, a control panel arranged on the inner side of the machine body, a nixie tube display 2, a buzzer alarm 3, an LED alarm 4 and a methane gas-sensitive sensing element 5, wherein the nixie tube display 2, the buzzer alarm 3, the LED alarm 4 and the methane gas-sensitive sensing element are arranged on the machine body 1 and are electrically connected with the control panel; the controller and the power supply end of the control panel are respectively and electrically connected with a four-core plug 6 fixed at the bottom of the machine body; the four-core plug 6 is connected to a power supply end and an alarm end of the power failure instrument through a four-wire cable 7; the controller also comprises at least one input/output plug 8 electrically connected with the controller I/O port of the control board; a lower bin body 9 is integrally formed at the bottom of the machine body 1; the lower bin body 9 is provided with three compartments 10; the bottom of the middle compartment 10 is provided with a multi-ring detection through hole 11; the front side of the lower bin body 9 is provided with an opening 12; a convex edge 13 is arranged at the opening 12; a cover plate 14 is fixed at the convex edge 13 through a bolt; a multi-ring detection through hole 11 is formed in the middle of the back surface of the cover plate 14 and the back surface of the lower bin body 9 opposite to the compartment; the four-core plug 6 and the input/output plug 8 are arranged on the inner side of the lower bin body 9, and a pouring seal layer 15 is arranged at the position of a perforation of the four-core plug and the bin body; a locking sleeve 16 is arranged at the bottom of the lower bin body 9; the input and output plug 8 is electrically connected to the adjacent methane sensor through a middle line 17, and the locking sleeve introduces an external lead and holds the external lead tightly; thereby being isolated from the outside; the machine body and the lower bin body are completely separated by a pouring layer.
The locking sleeve 16 comprises a tube seat 161, and a convex cylindrical through hole is formed in the inner side of the tube seat 161; an elastic seat 162 is arranged on the inner side of the cylindrical through hole; the inner side of the cylindrical through hole is screwed with a nut tube seat 163 which is pressed with the elastic seat; through connect the nut tube seat soon, can axial compression elastic seat, the elastic seat outside receives the restriction of cylindricality through-hole inner wall to compress tightly the cable outside, seal the isolation and compress tightly the fastening to cable entry outside.
Wherein, a hanging hook 18 is arranged on the top of the machine body 1.
The four-core plug 6 is a power input interface and a signal output interface, and the four cores are a power supply plus pin, a signal output plus pin and a null pin respectively; the input/output plug 8 is a signal input interface and a second signal output interface; the signal input interface comprises a signal input plus pin and a signal input plus pin; the second signal output interface includes a second signal output + pin and a second signal output-pin.
In another embodiment, the control panel is also provided with an infrared receiver communicated with the infrared remote control panel; the infrared remote control board comprises a remote control board body, an infrared emission circuit arranged on the inner side of the remote control board body, and a switch key, an ascending key, a descending key, a conversion key and a setting key which are arranged on the remote control board body and are respectively and electrically connected with the infrared emission circuit; when the device is used, the control panel adopts a master control panel of a GJC4(B) low-concentration methane sensor for coal mines, and a signal input interface of an input/output plug is connected to an interrupt end of the master control panel; the signal output interface of the input/output plug is connected to the common I/O port of the main control board; the infrared remote control board adopts FYF5 remote control emitter matched with the main control board.
The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.
Claims (5)
1. An intelligent methane sensor for a coal mine comprises a machine body, a control panel arranged on the inner side of the machine body, a nixie tube display, a buzzer alarm, an LED alarm and a methane gas-sensitive sensing element, wherein the nixie tube display, the buzzer alarm, the LED alarm and the methane gas-sensitive sensing element are arranged on the machine body and electrically connected with the control panel; the controller and the power supply end of the control panel are respectively and electrically connected with a four-core plug fixed at the bottom of the machine body; the four-core plug is connected to a power supply end and an alarm end of the power failure instrument through a four-wire cable; the method is characterized in that: the controller also comprises at least one input/output plug electrically connected with the controller I/O port of the control board; a lower bin body is integrally formed at the bottom of the machine body; the lower bin body is provided with three compartments; a multi-ring detection through hole is formed in the bottom of the middle partition; an opening is formed in the front side of the lower bin body; a convex edge is arranged at the opening; a cover plate is fixed at the convex edge through a bolt; a multi-ring detection through hole is formed in the middle of the back face of the cover plate and the back face of the lower bin body opposite to the compartment; the four-core plug and the input/output plug are arranged on the inner side of the lower bin body, and a pouring sealing layer is arranged at the position of the four-core plug and a perforation of the machine body; a locking sleeve is arranged at the bottom of the lower bin body; the input and output plug is electrically connected to an adjacent methane sensor.
2. The intelligent methane sensor for coal mines according to claim 1, wherein: the locking sleeve comprises a tube seat, and a convex cylindrical through hole is formed in the inner side of the tube seat; an elastic seat is arranged on the inner side of the cylindrical through hole; the inner side of the cylindrical through hole is screwed with a nut tube seat pressed with the elastic seat.
3. The intelligent methane sensor for coal mines according to claim 1, wherein: the top of the machine body is provided with a hanging hook.
4. The intelligent methane sensor for coal mines according to claim 1, wherein: the four-core plug is a power input interface and a signal output interface, and the four cores of the four-core plug are a power supply plus pin, a signal output plus pin and a null pin respectively; the input and output plug is a signal input interface and a second signal output interface; the signal input interface comprises a signal input plus pin and a signal input plus pin; the second signal output interface includes a second signal output + pin and a second signal output-pin.
5. The intelligent methane sensor for coal mines according to claim 1, wherein: the control panel is also provided with an infrared receiver communicated with the infrared remote control panel; the infrared remote control board comprises a remote control board body, an infrared transmitting circuit arranged on the inner side of the remote control board body, and an on-off key, a rising key, a falling key, a conversion key and a setting key which are arranged on the remote control board body and are respectively and electrically connected with the infrared transmitting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020015879.8U CN211426401U (en) | 2020-01-06 | 2020-01-06 | Intelligent methane sensor for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020015879.8U CN211426401U (en) | 2020-01-06 | 2020-01-06 | Intelligent methane sensor for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211426401U true CN211426401U (en) | 2020-09-04 |
Family
ID=72288108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020015879.8U Expired - Fee Related CN211426401U (en) | 2020-01-06 | 2020-01-06 | Intelligent methane sensor for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211426401U (en) |
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2020
- 2020-01-06 CN CN202020015879.8U patent/CN211426401U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200904 |