CN211426359U - Mining carbon monoxide sensor - Google Patents
Mining carbon monoxide sensor Download PDFInfo
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- CN211426359U CN211426359U CN201922351240.7U CN201922351240U CN211426359U CN 211426359 U CN211426359 U CN 211426359U CN 201922351240 U CN201922351240 U CN 201922351240U CN 211426359 U CN211426359 U CN 211426359U
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Abstract
The utility model discloses a mining carbon monoxide sensor, which comprises a sensor host and an infrared remote control board communicated with the sensor host; the sensor host comprises a machine body and a control panel arranged on the inner side of the machine body, wherein the control panel comprises a power supply circuit for supplying power to the whole machine, a sensing head for collecting carbon monoxide, a measuring circuit electrically connected with the sensing head, an amplifying circuit electrically connected with the measuring circuit, an A/D (analog/digital) conversion circuit electrically connected with the amplifying circuit, and a singlechip minimum system electrically connected with the A/D conversion circuit; the utility model discloses a mining carbon monoxide sensor adopts infrared outside to adjust, and whole machine adopts totally closed structure, and the sensor does not have the part that the regulation hole was adjusted with needs, and sealing performance is good, and job stabilization is reliable, and can cooperate outage appearance or substation to accomplish the environment and ally oneself with the accuse.
Description
Technical Field
The utility model relates to a carbon monoxide sensor, concretely relates to mining carbon monoxide sensor belongs to coal mine gas monitoring devices technical field.
Background
The carbon monoxide sensor is applied to a coal mine safety detection system, is used for continuously monitoring the concentration of carbon monoxide at coal mine roadways, mining working faces, goafs, air return roadways, electromechanical chambers and the like, can automatically give out sound and light alarms when the concentration of the carbon monoxide exceeds the limit, can be used for carrying underground operators of coal mines, carbon monoxide detectors, underground managers and the like, and can also be used for fixing the places; the existing carbon monoxide sensor has poor sealing performance, can only carry out monitoring and alarming, and cannot carry out joint control.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a mining carbon monoxide sensor adopts infrared external adjustment, and whole machine adopts totally enclosed construction, and the sensor does not have the part that the regulation hole was adjusted with needs, and sealing performance is good, and job stabilization is reliable, and can cooperate substation or outage appearance to accomplish safety allies oneself with the accuse.
In the mining carbon monoxide sensor, the power supply circuit stabilizes the voltage of the power supply sent by the associated equipment into 5V voltage, and the voltage is supplied to the circuit of the whole machine for use; the carbon monoxide gas sensitive element adopts an electrochemical probe, when the electrochemical probe works, carbon monoxide in the air is oxidized into carbon dioxide at a working electrode of the probe, current flows between the working electrode and a counter electrode of the probe, and the higher the concentration of the carbon monoxide is, the larger the current flows between the working electrode and the counter electrode of the probe; the signal current is converted into a digital signal after I/V conversion, voltage amplification and A/D conversion, the digital signal is read by a single chip computer, the carbon monoxide concentration value is displayed by a display circuit, and a current or frequency signal is output by a signal output circuit; the output current or frequency signal controls the power-off instrument or the substation, so that safety joint control can be performed; the alarm driving circuit drives the buzzer and the LED to perform sound-light alarm; when the concentration of the carbon monoxide exceeds a set alarm point, the instrument can send out an audible and visual alarm signal; the control panel is totally enclosed in the machine body, and is suitable for measuring the concentration of carbon monoxide in places with gas explosion danger in a coal mine; the sensor has zero setting, full degree setting and alarm point setting functions and can output current or frequency signals for controlling the power-off instrument or the substation in real time; all functions can be set through infrared remote control, and the sensor has no adjusting hole and part needing to be adjusted, so that 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 concrete structure is as follows: the system comprises a sensor host and an infrared remote control board communicated with the sensor host; the sensor host comprises a machine body and a control panel arranged on the inner side of the machine body, wherein the control panel comprises a power supply circuit for supplying power to the whole machine, a sensing head for collecting carbon monoxide, a measuring circuit electrically connected with the sensing head, an amplifying circuit electrically connected with the measuring circuit, an A/D (analog/digital) conversion circuit electrically connected with the amplifying circuit, and a singlechip minimum system electrically connected with the A/D conversion circuit; the single chip microcomputer minimum system is also electrically connected with a display driving circuit, an alarm driving circuit, a signal output circuit and an infrared receiving head; the infrared receiving head is communicated with the infrared remote control board.
Further, the sensing head is a carbon monoxide gas sensitive element based on electrochemical principle; the measuring circuit is an I/V conversion circuit.
Furthermore, the machine body comprises a square shell and a surface cover which is arranged on the front side of the shell and is sealed with the shell through a sealing ring; the control panel is arranged on the inner side of the shell; a hanging hook is arranged at the top of the shell; a four-core joint and a sensor mounting tube seat are fixed at the bottom of the shell; light alarm covers are arranged on two sides of the upper part of the face cover; a raised annular window is integrally formed in the middle of the face cover; a transparent plate is fixedly attached to the annular window on the inner surface of the face cover; the lower part of the annular window of the face cover is pressed with an annular convex part; a plurality of sound through holes are formed in the annular convex part; a nameplate position is arranged at the bottom of the annular outer convex part of the face cover; an LED is fixedly attached to the inner surface of the light alarm cover; a four-digit LED nixie tube is fixedly attached to the inner surface of the transparent plate; a buzzer is fixedly attached to the inner surface of the annular outer convex part; the sensing head is arranged on the inner side of the sensor mounting tube seat; the four-digit LED nixie tube is electrically connected with the display driving circuit; the LED and the buzzer are electrically connected with an alarm driving circuit.
Furthermore, the four-core connector is a power input interface and a signal output interface, and the four cores are a power supply + pin, a power supply-pin, a signal output + pin and a signal output-pin respectively.
Furthermore, 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, 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 emission circuit.
Furthermore, the four-core connector is electrically connected with the substation or the power-off instrument through a plug cable respectively.
Further, the signal output circuit is a D/A conversion module and/or a frequency output module.
Furthermore, the signal output circuit comprises a D/A conversion module and a V/I conversion module electrically connected with the D/A conversion module.
Compared with the prior art, the utility model discloses a mining carbon monoxide sensor adopts infrared outside to adjust, and whole machine adopts totally enclosed construction, and the sensor does not have the part that the regulation hole was adjusted with needs, and sealing performance is good, and job stabilization is reliable, and can cooperate outage appearance or substation to accomplish the environment allies oneself with the accuse.
Drawings
Fig. 1 is a schematic diagram of a circuit module according to embodiment 1 of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a schematic diagram of the connection between the sensor and the substation or the power cut-off device of the present invention.
Detailed Description
Example 1:
as shown in fig. 1 and 2, the utility model discloses a mining carbon monoxide sensor; the power supply circuit stabilizes the power supply sent by the associated equipment into 5V voltage and supplies the voltage to the whole circuit for use; the carbon monoxide gas sensitive element adopts an electrochemical probe, when the electrochemical probe works, carbon monoxide in the air is oxidized into carbon dioxide at a working electrode of the probe, current flows between the working electrode and a counter electrode of the probe, and the higher the concentration of the carbon monoxide is, the larger the current flows between the working electrode and the counter electrode of the probe; the signal current is converted into a digital signal after I/V conversion, voltage amplification and A/D conversion, the digital signal is read by a single chip computer, the carbon monoxide concentration value is displayed by a display circuit, and a current or frequency signal is output by a signal output circuit; the output current or frequency signal controls the power-off instrument or the substation, so that safety joint control can be performed; the alarm driving circuit drives the buzzer and the LED to perform sound-light alarm; when the concentration of the carbon monoxide exceeds a set alarm point, the instrument can send out an audible and visual alarm signal; the control panel is totally enclosed in the machine body, and is suitable for measuring the concentration of carbon monoxide in places with gas explosion danger in a coal mine; the sensor has zero setting, full degree setting and alarm point setting functions and can output current or frequency signals for controlling the power-off instrument or the substation in real time; all functions can be set through infrared remote control, and the sensor has no adjusting hole and part needing to be adjusted, so that 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 concrete structure is as follows: the system comprises a sensor host and an infrared remote control board communicated with the sensor host; the sensor host comprises a machine body and a control panel arranged on the inner side of the machine body, wherein the control panel comprises a power supply circuit for supplying power to the whole machine, a sensing head for collecting carbon monoxide, a measuring circuit electrically connected with the sensing head, an amplifying circuit electrically connected with the measuring circuit, an A/D (analog/digital) conversion circuit electrically connected with the amplifying circuit, and a singlechip minimum system electrically connected with the A/D conversion circuit; the single chip microcomputer minimum system is also electrically connected with a display driving circuit, an alarm driving circuit, a signal output circuit and an infrared receiving head; the infrared receiving head is communicated with the infrared remote control board.
Wherein the sensing head is a carbon monoxide gas sensitive element based on electrochemical principle; the measuring circuit is an I/V conversion circuit; the machine body comprises a square shell 1 and a surface cover 2 which is arranged on the front side of the shell and is sealed with the shell through a sealing ring; the control panel is arranged on the inner side of the shell; the top of the shell 1 is provided with a hanging hook 3; a four-core joint 4 and a sensor mounting tube seat 5 are fixed at the bottom of the shell 1; two sides of the upper part of the face cover 2 are provided with an optical alarm cover 6; a raised annular window 7 is integrally formed in the middle of the face cover 2; a transparent plate 8 is fixedly attached to the inner surface of the face cover 2 at the annular window 7; the lower part of the annular window of the face cover 8 is pressed with an annular outer convex part 9; a plurality of sound through holes 10 are formed in the annular convex part 9; a nameplate position 11 is arranged at the bottom of the annular outer convex part of the surface cover 2; an LED is fixedly attached to the inner surface of the light alarm cover 6; a four-digit LED nixie tube is fixedly attached to the inner surface of the transparent plate 8; a buzzer is fixedly attached to the inner surface of the annular outer convex part 9; the sensing head is arranged on the inner side of the sensor mounting tube seat 5; the four-digit LED nixie tube 12 is electrically connected with a display driving circuit; the LED and the buzzer are electrically connected with an alarm driving circuit; the four-core connector 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 signal output plus pin respectively.
The infrared remote control board comprises a remote control board body 13, an infrared emission circuit arranged on the inner side of the remote control board body, and a switch key 14, an ascending key 15, a descending key 16, a conversion key 17 and a setting key 18 which are arranged on the remote control board body and are respectively and electrically connected with the infrared emission circuit; the sensor is adjusted or set through an infrared remote control board: adjusting zero point, introducing pure air into a probe of the instrument after the instrument is started stably for 15 minutes, wherein the flow rate is 200mL/min, after the reading is stable, directly facing the transmitting end of the remote controller to a display window of the instrument, pressing a switch key, flashing the last decimal point of a nixie tube displayed by the instrument, pressing a down key to adjust the numerical value to be 0, and then pressing a set key for storage; after zero setting, pressing a switch key to quit the remote control state; adjusting the fullness, introducing 500 x 10 < -6 > carbon monoxide standard gas into the probe of the sensor, controlling the flow rate to be 200mL/min, after the reading is stable, rightly aligning the transmitting end of the remote controller to a display window of the sensor, pressing an on-off key, flashing the last decimal point of the sensor, then pressing a conversion key to display 5.00, pressing an ascending key and a descending key to adjust the numerical value to be consistent with the gas sample value, and then pressing a setting key to store; after the fullness is adjusted, pressing a switch key to quit the remote control state; adjusting an alarm point, namely enabling a transmitting end of a remote controller to face a display window of the instrument, pressing an on-off key, enabling the last decimal point of the instrument to flicker, then pressing a 2-time conversion key to display 'b 24.0', pressing an ascending key and a descending key to adjust the numerical value to a required alarm concentration value, and then pressing a set key to store the numerical value; after the alarm point is adjusted, the remote control state is exited by pressing a switch key.
As shown in fig. 3, the four-core connector 4 is electrically connected to a substation or a power-off instrument through a plug cable respectively; the signal output circuit is a D/A conversion module and/or a frequency output module; the signal output circuit comprises a D/A conversion module and a V/I conversion module electrically connected with the D/A conversion module.
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 (8)
1. A mining carbon monoxide sensor is characterized in that: the system comprises a sensor host and an infrared remote control board communicated with the sensor host; the sensor host comprises a machine body and a control panel arranged on the inner side of the machine body, wherein the control panel comprises a power supply circuit for supplying power to the whole machine, a sensing head for collecting carbon monoxide, a measuring circuit electrically connected with the sensing head, an amplifying circuit electrically connected with the measuring circuit, an A/D (analog/digital) conversion circuit electrically connected with the amplifying circuit, and a singlechip minimum system electrically connected with the A/D conversion circuit; the single chip microcomputer minimum system is also electrically connected with a display driving circuit, an alarm driving circuit, a signal output circuit and an infrared receiving head; the infrared receiving head is communicated with the infrared remote control board.
2. The mining carbon monoxide sensor of claim 1, wherein: the sensing head is a carbon monoxide gas sensitive element based on an electrochemical principle; the measuring circuit is an I/V conversion circuit.
3. The mining carbon monoxide sensor of claim 1, wherein: the machine body comprises a square shell and a surface cover which is arranged on the front side of the shell and is sealed with the shell through a sealing ring; the control panel is arranged on the inner side of the shell; a hanging hook is arranged at the top of the shell; a four-core joint and a sensor mounting tube seat are fixed at the bottom of the shell; light alarm covers are arranged on two sides of the upper part of the face cover; a raised annular window is integrally formed in the middle of the face cover; a transparent plate is fixedly attached to the annular window on the inner surface of the face cover; the lower part of the annular window of the face cover is pressed with an annular convex part; a plurality of sound through holes are formed in the annular convex part; a nameplate position is arranged at the bottom of the annular outer convex part of the face cover; an LED is fixedly attached to the inner surface of the light alarm cover; a four-digit LED nixie tube is fixedly attached to the inner surface of the transparent plate; a buzzer is fixedly attached to the inner surface of the annular outer convex part; the sensing head is arranged on the inner side of the sensor mounting tube seat; the four-digit LED nixie tube is electrically connected with the display driving circuit; the LED and the buzzer are electrically connected with an alarm driving circuit.
4. The mining carbon monoxide sensor of claim 3, wherein: the four-core connector 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 signal output plus pin respectively.
5. The mining carbon monoxide sensor of claim 1, wherein: 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.
6. The mining carbon monoxide sensor of claim 1, wherein: the four-core connector is electrically connected with a substation or a power-off instrument through a plug cable respectively.
7. The mining carbon monoxide sensor of claim 1, wherein: the signal output circuit is a D/A conversion module and/or a frequency output module.
8. The mining carbon monoxide sensor of claim 1, wherein: the signal output circuit comprises a D/A conversion module and a V/I conversion module electrically connected with the D/A conversion module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922351240.7U CN211426359U (en) | 2019-12-25 | 2019-12-25 | Mining carbon monoxide sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922351240.7U CN211426359U (en) | 2019-12-25 | 2019-12-25 | Mining carbon monoxide sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211426359U true CN211426359U (en) | 2020-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922351240.7U Active CN211426359U (en) | 2019-12-25 | 2019-12-25 | Mining carbon monoxide sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211426359U (en) |
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2019
- 2019-12-25 CN CN201922351240.7U patent/CN211426359U/en active Active
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