CN202119747U - Portable methane detection alarm - Google Patents
Portable methane detection alarm Download PDFInfo
- Publication number
- CN202119747U CN202119747U CN2011200013446U CN201120001344U CN202119747U CN 202119747 U CN202119747 U CN 202119747U CN 2011200013446 U CN2011200013446 U CN 2011200013446U CN 201120001344 U CN201120001344 U CN 201120001344U CN 202119747 U CN202119747 U CN 202119747U
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- methane
- alarming instrument
- portable
- detection alarming
- concentration
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Abstract
The utility model relates to a portable methane detection alarm, which is provided with a methane sensor, a control device, a setting device, a display device and an alarming device The methane sensor is used for detecting concentration of the methane in the environment, the control device is used for receiving and processing electric signals from the methane sensor, transmitting the processed electric signals to the display device and controlling power supply to the methane sensor when the methane sensor is out of power. The setting device is used for transmitting instructions to the control device so as to set parameters of the methane detection alarm. The protecting circuit is used for cutting off the methane sensor, the display device and the alarming device under control of the control device when the voltage is lower than a preset value or concentration of methane is larger than a protecting value. The display device is used for displaying the concentration of methane, and the alarming device is used for alarming when the concentration of methane is larger than a preset parameter. The portable methane detection alarm further comprises a remote control circuit for receiving remote control signals from the outside so as to open or close the portable methane detection alarm.
Description
Technical field
The utility model relates to a kind of portable methane detection alarming instrument.
Background technology
The existing portable methane detection alarming instrument ordinary person that can leave is provided with the setting at alarm threshold value and zero point, causes the data of this type methane detection alarming instrument inaccurate, it can't accurately be reported to the police, thereby increased insecurity.
The utility model content
The purpose that the utility model will be realized provides a kind of portable methane detection alarming instrument, and it overcomes above-mentioned shortcoming, makes general personnel that the parameter of this methane detection alarming instrument can't arbitrarily be set.
An aspect according to the utility model provides a kind of portable methane detection alarming instrument, has: methane transducer is used for the methane concentration of testing environment; Controller is used to receive and handle the electric signal from methane transducer, sends treated electric signal to display device, and control is switched on to this methane transducer under the situation of methane transducer outage; Setting device is used for sending order so that the parameter of this methane detection alarming instrument to be set to controller; Holding circuit is used for when voltage is lower than predetermined value or methane concentration greater than the protection value, cutting off under the control at controller methane transducer, display device and warning device; Display device is used to show methane concentration; And warning device, be used for reporting to the police during greater than preset parameter at methane concentration.Said portable methane detection alarming instrument also comprises remote control circuit, is used to receive from the remote signal of outside to start or to close said setting device.
Through said remote control circuit, can prevent that the ordinary person from arbitrarily changing the parameter of methane detection alarming instrument, thereby improve accuracy and the reliability that methane concentration is reported to the police.
Description of drawings
Fig. 1 illustrates an exemplary embodiment of the methane detection alarming instrument of the utility model.
Fig. 2 illustrates the schematic diagram of telepilot of the methane detection alarming instrument of the utility model.
Fig. 3 illustrates the reception schematic diagram of the remote control circuit in the methane detection alarming instrument of the utility model.
Embodiment
Fig. 1 illustrates the exemplary embodiment of the methane detection alarming instrument of the utility model.In this embodiment, this methane detection alarming instrument comprises methane transducer 101, signal amplifier 103, controller 105, display device 107, warning device 109, holding circuit 111, power source management controller 113,3.0V mu balanced circuit 115 and remote control circuit 117 etc.
After signal amplifier 103 amplifies, delivering to controller 105 as the detected electric signal of the Methane Carrier Catalytic Element of methane transducer 101, for example is single-chip microcomputer at this controller 105, and via controller is delivered to display device 107 after handling.In this this display device for example is charactron, is used in reference to corresponding methane concentration is shown.
When methane concentration met or exceeded the alarm threshold value of setting, warning device 109 (for example being sound light alarming circuit) work was with give the alarm (for example being sound and light alarm).In addition, when voltage drops to voltage threshold (for example 3.28V) or when following, holding circuit 111 work, the power supply that cuts off methane transducer 101 and display device makes display device cut off the power supply.In addition, when methane concentration during more than or equal to concentration threshold (the for example protection value of 4%CH4), holding circuit 111 also can be worked, and cuts off the power supply of methane transducer, with the protection Methane Carrier Catalytic Element.After the preset time section, for example after 1 minute, send electricity to methane transducer by controller 105 controls, make this methane transducer get into duty.If this moment, methane concentration was lower than the protection value, methane detection alarming instrument promptly gets into normal detected state; If methane concentration is still greater than the protection value, then the power supply of this methane transducer is cut off in holding circuit work once more, to protect this methane transducer.
Mu balanced circuit 115 is used for to each parts stabilized voltage supply being provided, and power source management controller 113 can be controlled under the control of controller 105 and to holding circuit electric energy is provided.
Methane detection alarming instrument also comprises setting device 119, is used to be provided with the parameter of alkane detection alarm appearance, for example the parameter of alkane detection alarm appearance comprise zero point and alarm threshold value (comprising voltage threshold and concentration threshold) one of at least.
In this embodiment; Methane detection alarming instrument also comprises remote control circuit 115; This remote control circuit can comprise infrared receiving key, and this switch is in off-state at ordinary times, and the feasible button of pressing on the setting device 119 can not change the parameter setting of methane detection alarming instrument.In this embodiment, this setting device constitutes waterproff keyboard.And the parameter of methane detection alarming instrument comprise zero point and alarm threshold value one of at least.That gentle sports school is set is punctual when needs return to zero, and can use closed this infrared receiving key of for example outside IR remote controller, makes this setting device can receive external command, and debug zero point and the calibration of alarm threshold value to carry out.
Fig. 2 illustrates the schematic diagram of the telepilot of the utility model.This telepilot can dispose to this methane detection alarming instrument.The infrared receiving key of remote control circuit 115 can connected and close to ON on using a teleswitch and OFF key, thereby open and close the setting device of the methane detection alarming instrument of the utility model.
Fig. 3 illustrates the reception schematic diagram of the remote control circuit 115 in the methane detection alarming instrument of the utility model.
When remote control circuit 115 received the ON signal from telepilot, L1 exported high level, made triode C, the conducting of the E utmost point, thereby connected the setting device of portable methane detection alarming instrument; When remote control circuit 115 received the OFF signal from telepilot, the L1 output low level made triode C, the E utmost point end, thereby closes the setting device of portable methane detection alarming instrument.Connection through setting device and closing can be provided with each parameter of methane detection alarming instrument.
Through in the methane detection alarming instrument of the utility model, adding remote control circuit, make that the debugging calibration of this alarm is simple and convenient, and non-adjustment personnel in use can not arbitrarily change the setting of this alarm again.Accuracy, reliability, the security of alarm have been guaranteed.
Claims (5)
1. portable methane detection alarming instrument is characterized in that comprising:
Methane transducer is used for the methane concentration of testing environment;
Controller is used to receive and handle the electric signal from methane transducer, sends treated electric signal to display device, and control is switched on to this methane transducer under the situation of methane transducer outage;
Setting device is used for sending order so that the parameter of this methane detection alarming instrument to be set to controller;
Holding circuit is used for when voltage is lower than voltage threshold or methane concentration greater than concentration threshold, cutting off under the control at controller methane transducer, display device and warning device;
Display device is used to show methane concentration; With
Warning device is used for reporting to the police during greater than preset parameter at methane concentration;
Wherein said portable methane detection alarming instrument also comprises remote control circuit, is used to receive from the remote signal of outside to start or to close said setting device.
2. portable methane detection alarming instrument according to claim 1, wherein said remote control circuit comprises infrared receiving key.
3. portable methane detection alarming instrument according to claim 1 also comprises telepilot, is used for sending remote signal to remote control circuit.
4. portable methane detection alarming instrument according to claim 1, wherein the parameter of this methane detection alarming instrument comprises following at least a: zero point and alarm threshold value.
5. portable methane detection alarming instrument according to claim 1, wherein said setting device is a waterproff keyboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200013446U CN202119747U (en) | 2011-01-05 | 2011-01-05 | Portable methane detection alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200013446U CN202119747U (en) | 2011-01-05 | 2011-01-05 | Portable methane detection alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202119747U true CN202119747U (en) | 2012-01-18 |
Family
ID=45460802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200013446U Expired - Fee Related CN202119747U (en) | 2011-01-05 | 2011-01-05 | Portable methane detection alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202119747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109584525A (en) * | 2018-12-10 | 2019-04-05 | 苏州赛智达智能科技有限公司 | The explosion-proof detection method of fuel gas leakage alarm |
| CN109949557A (en) * | 2019-03-29 | 2019-06-28 | 中国计量大学上虞高等研究院有限公司 | Portable thermal catalytic methane detects alarm automatic Verification platform |
-
2011
- 2011-01-05 CN CN2011200013446U patent/CN202119747U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109584525A (en) * | 2018-12-10 | 2019-04-05 | 苏州赛智达智能科技有限公司 | The explosion-proof detection method of fuel gas leakage alarm |
| CN109949557A (en) * | 2019-03-29 | 2019-06-28 | 中国计量大学上虞高等研究院有限公司 | Portable thermal catalytic methane detects alarm automatic Verification platform |
| CN109949557B (en) * | 2019-03-29 | 2023-11-03 | 中国计量大学上虞高等研究院有限公司 | Portable automatic calibration platform for thermal catalytic methane detection alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20140105 |