CN212272304U - Airborne methane outage appearance - Google Patents
Airborne methane outage appearance Download PDFInfo
- Publication number
- CN212272304U CN212272304U CN202020115050.5U CN202020115050U CN212272304U CN 212272304 U CN212272304 U CN 212272304U CN 202020115050 U CN202020115050 U CN 202020115050U CN 212272304 U CN212272304 U CN 212272304U
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- Prior art keywords
- power
- electrically connected
- methane
- box body
- output interface
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 239000002184 metal Substances 0.000 claims abstract description 32
- 230000000007 visual effect Effects 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The utility model discloses an onboard methane power-off instrument, which comprises a host, a methane sensor and an audible and visual alarm, wherein the methane sensor and the audible and visual alarm are in communication connection with the host; the host is also provided with a power-off control switch; the power-off control switch is electrically connected to a power end of the controlled equipment; the host comprises a metal box body, and a metal upper cover is fixed on the top surface of the metal box body through a bolt; a circuit breaker circuit board is arranged on the inner side of the metal box body; a power-off output interface, an external control port and a power input interface which are electrically connected with the circuit board of the power-off instrument are arranged on one side of the metal box body; a power output interface, an audible and visual alarm output interface and a sensor input interface which are electrically connected with the circuit board of the outage instrument are arranged on the other side of the metal box body; a display window is arranged on the metal upper cover; the utility model discloses a machine carries formula methane outage appearance can accomplish methane detection, demonstration, transfinite and report to the police and can send and emergency equipment linkage signal.
Description
Technical Field
The utility model relates to an airborne outage appearance, concretely relates to airborne formula methane outage appearance belongs to methane outage appearance technical field.
Background
China is a big coal producing country, the coal yield leaps the first three in the world, most of coal is stored under the ground and must be mined in a mine form, and because the underground environment of the mine is relatively complex, at present, in order to ensure the safety of the underground operation of the coal mine, the underground air environment needs to be monitored, wherein a methane power failure instrument is equipment for monitoring, displaying and powering off the methane concentration in a monitoring area, and the methane power failure instrument is divided into a vehicle-mounted methane power failure instrument and a machine-mounted methane power failure instrument according to an installation object; the recording type power cut-off instrument is arranged on equipment such as a coal mining machine, a heading machine and the like; the methane outage instrument can detect out gas concentration values around installation equipment, has concentration display, alarm and host outage functions, but the existing methane outage instrument only completes outage of operation equipment, and cannot perform emergency linkage on an alarm illuminating lamp and a spraying system according to requirements.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an airborne methane outage appearance can accomplish methane detection, demonstration, transfinite and report to the police and can send with emergency equipment linkage signal.
The machine-mounted methane power-off instrument of the utility model is suitable for coal mining machines, heading machines and other equipment in various working places under coal mines, provides direct current intrinsic safety power supplies for various sensors, and provides methane overrun alarm, power-off and emergency linkage; the main machine is used as a sensor signal receiving device and also used as a driving device of an audible and visual alarm and a power-off control switch; the methane sensor and the audible and visual alarm are in communication connection with the host; the host is also provided with a power-off control switch; the power-off control switch is electrically connected to a power supply end of the controlled device.
Furthermore, the host comprises a metal box body, and a metal upper cover is fixed on the top surface of the metal box body through a bolt; a circuit breaker circuit board is arranged on the inner side of the metal box body; a power-off output interface, an external control port and a power input interface which are electrically connected with the circuit board of the power-off instrument are arranged on one side of the metal box body; a power output interface, an audible and visual alarm output interface and a sensor input interface which are electrically connected with the circuit board of the outage instrument are arranged on the other side of the metal box body; a display window is arranged on the metal upper cover; a four-digit LED display nixie tube is fixed on the inner surface of the display window; adopt the metal box, carry out inner seal with whole outage appearance control panel, metal box structural strength is high, and its display window can show methane concentration with sensor display screen synchronization.
Still further, the circuit board of the power cut-off instrument comprises a power panel, wherein the input end of the power panel is electrically connected with a power input interface, and the power input interface introduces 24V of alternating current into the power panel; the output end of the power panel is electrically connected with the power output interface, the power supply for completing AC-DC and DC-DC conversion is sent to the power output interface, and the sensor is powered through the power output interface; the power panel is also electrically connected with the singlechip control panel through a DC-DC module; the singlechip control board is electrically connected with the multi-way switch driving circuit through the multi-way switch; the switch driving circuit is respectively and electrically connected with the power-off output interface and the peripheral control port; when the signal collected by the sensor input interface is greater than the threshold value, the singlechip control board respectively controls the switch driving circuit to act, so that the power-off output interface and the peripheral control port are controlled to output control signals, and the operation equipment is controlled to be powered off and the emergency equipment is controlled to be started; whether the switch driving circuit works or not is selected through a multi-way switch, so that the action of a peripheral control port when a peripheral is not connected is avoided, and the multi-way switch is a manual switch or a relay circuit; the singlechip control board is also electrically connected with a four-digit LED display nixie tube, an audible and visual alarm output interface and a sensor input interface; the sensor input interface is connected with a methane sensor; audible-visual annunciator output interface electricity is connected audible-visual annunciator, provides the power for singlechip control panel and sensor through the power strip, and four-digit LED shows that the charactron shows the methane concentration synchronous with the sensor, and audible-visual annunciator can output alarm signal and sensor input interface can insert the methane acquisition signal.
Still further, the power panel comprises a rectifying circuit, a filtering circuit, a first DC-DC module, a second DC-DC module and an overvoltage and overcurrent protection module which are sequentially connected; the first DC-DC module is electrically connected to a backup battery through a charge and discharge control circuit; and the electric control end of the charge and discharge control circuit is electrically connected with the singlechip control board, and the discharge end of the charge and discharge control circuit is electrically connected with the second DC-DC module.
Further, a remote control receiver communicated with the remote control transmitter is further arranged on the inner side of the host.
The utility model discloses compare with prior art, the utility model discloses a machine carries formula methane outage appearance can accomplish methane detection, demonstration, transfinite and report to the police and can send and emergency equipment linkage signal.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the embodiment of the present invention.
Fig. 2 is a schematic view of the overall structure of the side of the main frame of the present invention.
Fig. 3 is a schematic view of the overall structure of the top surface of the main body of the present invention.
Fig. 4 is a schematic diagram of a circuit breaker circuit board module according to the present invention.
Fig. 5 is a schematic diagram of the power board circuit of the present invention.
Detailed Description
Example 1:
as shown in fig. 1, the utility model relates to an onboard methane power-off instrument; the device is suitable for coal mining machines, heading machines and other equipment in various working places under coal mines, provides direct-current intrinsic safety power supplies for various sensors, and provides methane overrun alarm, power failure and emergency linkage; the system comprises a host machine 1, wherein the host machine is used as a sensor signal receiving device and also used as a driving device of an audible and visual alarm and a power failure control switch; the methane sensor 2 and the acousto-optic alarm 3 are in communication connection with the host; the main machine 1 is also provided with a power-off control switch 4; the power-off control switch is electrically connected to a power supply end of the controlled device.
As shown in fig. 2 and 3, the main body 1 includes a metal box 5, and a metal upper cover 6 is fixed on the top surface of the metal box 5 through bolts; a circuit breaker circuit board is arranged on the inner side of the metal box body 5; a power-off output interface 7, an external control port 8 and a power input interface 9 which are electrically connected with a circuit board of the power-off instrument are arranged on one side of the metal box body 5; the other side of the metal box body 5 is provided with a power supply output interface 10, an audible and visual alarm output interface 11 and a sensor input interface 12 which are electrically connected with a circuit board of the outage instrument; a display window 13 is arranged on the metal upper cover 6; a four-digit LED display nixie tube is fixed on the inner surface of the display window 13; adopt the metal box, carry out inner seal with whole outage appearance control panel, metal box structural strength is high, and its display window can show methane concentration with sensor display screen synchronization.
As shown in fig. 4, the circuit board of the power cut-off instrument comprises a power panel 14, wherein the input end of the power panel 14 is electrically connected with a power input interface 9, and the power input interface 9 introduces alternating current 24V into the power panel; the output end of the power panel is electrically connected with a power output interface 10, the power supply for completing AC-DC and DC-DC conversion is sent to the power output interface, and the sensor is powered through the power output interface; the power panel 14 is also electrically connected with a singlechip control panel 16 through a DC-DC module 15; the single chip microcomputer control board 16 is electrically connected with a multi-way switch driving circuit 18 through a multi-way switch 17; the switch driving circuit 18 is respectively and electrically connected with the power-off output interface 7 and the peripheral control port 8; when the signal collected by the sensor input interface is greater than the threshold value, the singlechip control board 16 respectively controls the switch driving circuit to act, thereby controlling the power-off output interface and the peripheral control port to output control signals and controlling the operation equipment to be powered off and the emergency equipment to be started; whether the switch driving circuit works or not is selected through a multi-way switch, so that the action of a peripheral control port when a peripheral is not connected is avoided, and the multi-way switch is a manual switch or a relay circuit; the singlechip control board 16 is also electrically connected with a four-digit LED display nixie tube 19, an audible and visual alarm output interface 11 and a sensor input interface 12; the sensor input interface 12 is connected with the methane sensor 2; the audible and visual alarm 11 output interface electricity is connected audible and visual alarm 3, provides the power for singlechip control panel and sensor through the power strip, and four-digit LED shows that the charactron shows the methane concentration synchronous with the sensor, and audible and visual alarm can output alarm signal and sensor input interface can insert the methane and gather the signal.
As shown in fig. 5, the power panel includes a rectifying circuit, a filtering circuit, a first DC-DC module, a second DC-DC module and an overvoltage and overcurrent protection module, which are connected in sequence; the first DC-DC module is electrically connected to a backup battery through a charge and discharge control circuit; the electric control end of the charge and discharge control circuit is electrically connected with the singlechip control board, and the discharge end of the charge and discharge control circuit is electrically connected with the second DC-DC module; the alternating current power supply is changed into 24V voltage through a transformer, the 24V voltage is input into the module 1 (P36 WDC33S12S 18) after passing through a rectifying and filtering circuit, the module 1 outputs a DC12V and a DC18V, wherein the DC18V is connected to a charging and discharging circuit, and the DC12V is input into the module 2 (P5 WDC12S 12A). The module 2 outputs stable DC12V, inputs the stable DC12V to the module 3 (double current limiting and double voltage limiting), and finally outputs 12VDC intrinsic safety power supply; respectively supplying power to the methane sensor, an internal control circuit and an audible and visual alarm; the standby battery is charged and discharged under the control of the single chip microcomputer; when the methane concentration measured by the methane sensor exceeds the concentration of a power-off point, the power-off instrument host sends a power-off instruction, and the solid-state relay is switched on; meanwhile, the audible and visual alarm also sends out an alarm signal; when the concentration of methane is lower than the concentration of a power restoration point, the main machine of the power failure instrument sends a power restoration instruction, and the solid-state relay is disconnected; the audible and visual alarm also stops giving an alarm.
The airborne methane power-off instrument of the embodiment adopts a core board of a host machine of a DJ4/127J-Z airborne methane power-off instrument as a control board, adopts a GJC4 (B) low-concentration methane sensor for coal mines as methane acquisition equipment, adopts a KXB-A mine intrinsic safety type audible and visual alarm as local alarm equipment, and uses a FYF5 remote control transmitter as a joint control master controller; the fixed instrument can provide a direct current intrinsic safety power supply for various sensors and provide methane overrun alarm and power-off functions; the main machine of the power failure instrument has the functions of digital display and infrared remote control adjustment and calibration, and can detect the signal of the methane sensor and provide power failure and equipment linkage instruction output; the setting of the power-off point, the alarm point and the power-off control mode are all carried out by a remote controller; the instrument is provided with a standby battery, and when an alternating current power supply is powered off, the standby battery is automatically switched to work; the main machine of the power failure instrument has the functions of digital display and infrared remote control adjustment and calibration, and can detect the signal of the methane sensor and provide power failure (instruction) output; the setting of the power-off point, the alarm point and the power-off control mode are all carried out by a remote controller. The instrument is provided with a standby battery, and when an alternating current power supply is powered off, the standby battery is automatically switched to work;
the system is specifically configured as follows: and (4) alarming points: adjustable, the instrument is set at 1.00% CH when leaving factory4(ii) a A power-off point: adjustable, the instrument is set at 1.50% CH when leaving factory4(ii) a A power restoration point: adjustable, the instrument is set at the time of leaving factory 1.00％CH4(ii) a And power-off signal output: 1-way (non-intrinsically safe) normally open/normally closed contact, contact capacity: 127V/1.5A AC.
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 (3)
1. The utility model provides an airborne methane outage appearance which characterized in that: the methane sensor and the audible and visual alarm are in communication connection with the host; the host is also provided with a power-off control switch; the power-off control switch is electrically connected to a power end of the controlled equipment; the host comprises a metal box body, and a metal upper cover is fixed on the top surface of the metal box body through a bolt; a circuit breaker circuit board is arranged on the inner side of the metal box body; a power-off output interface, an external control port and a power input interface which are electrically connected with the circuit board of the power-off instrument are arranged on one side of the metal box body; a power output interface, an audible and visual alarm output interface and a sensor input interface which are electrically connected with the circuit board of the outage instrument are arranged on the other side of the metal box body; a display window is arranged on the metal upper cover; a four-digit LED display nixie tube is fixed on the inner surface of the display window; the circuit board of the power cut-off instrument comprises a power panel, and the input end of the power panel is electrically connected with a power input interface; the output end of the power panel is electrically connected with the power output interface; the power panel is also electrically connected with the singlechip control panel through a DC-DC module; the singlechip control board is electrically connected with the multi-way switch driving circuit through the multi-way switch; the switch driving circuit is respectively and electrically connected with the power-off output interface and the peripheral control port; the singlechip control board is also electrically connected with a four-digit LED display nixie tube, an audible and visual alarm output interface and a sensor input interface; the sensor input interface is connected with a methane sensor; and the audible and visual alarm output interface is electrically connected with the audible and visual alarm.
2. The on-board methane deenergizer of claim 1, wherein: the power panel comprises a rectifying circuit, a filter circuit, a first DC-DC module, a second DC-DC module and an overvoltage and overcurrent protection module which are connected in sequence; the first DC-DC module is electrically connected to a backup battery through a charge and discharge control circuit; and the electric control end of the charge and discharge control circuit is electrically connected with the singlechip control board, and the discharge end of the charge and discharge control circuit is electrically connected with the second DC-DC module.
3. The on-board methane deenergizer of claim 1, wherein: the inner side of the host is also provided with a remote control receiver communicated with the remote control transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020115050.5U CN212272304U (en) | 2020-01-19 | 2020-01-19 | Airborne methane outage appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020115050.5U CN212272304U (en) | 2020-01-19 | 2020-01-19 | Airborne methane outage appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212272304U true CN212272304U (en) | 2021-01-01 |
Family
ID=73873037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020115050.5U Expired - Fee Related CN212272304U (en) | 2020-01-19 | 2020-01-19 | Airborne methane outage appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212272304U (en) |
-
2020
- 2020-01-19 CN CN202020115050.5U patent/CN212272304U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |