CN105605735A - Hydrogen gas automatically-monitoring and actively-protecting device and method - Google Patents
Hydrogen gas automatically-monitoring and actively-protecting device and method Download PDFInfo
- Publication number
- CN105605735A CN105605735A CN201511033243.6A CN201511033243A CN105605735A CN 105605735 A CN105605735 A CN 105605735A CN 201511033243 A CN201511033243 A CN 201511033243A CN 105605735 A CN105605735 A CN 105605735A
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- China
- Prior art keywords
- hydrogen
- hydrogen gas
- protective device
- gas sensor
- monitoring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 19
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 239000001257 hydrogen Substances 0.000 claims description 54
- 229910052739 hydrogen Inorganic materials 0.000 claims description 54
- 230000001681 protective effect Effects 0.000 claims description 44
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000005399 mechanical ventilation Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005329 float glass Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a hydrogen gas automatically-monitoring and actively-protecting device. The hydrogen gas automatically-monitoring and actively-protecting device comprises a hydrogen gas detection signal processing main control circuit, a ME4-H2 hydrogen gas sensor, a relay K coil, a hydrogen gas detection PPM value LCD (liquid crystal display) display and a hydrogen gas detection acousto-optic alarm, and is characterized in that the hydrogen gas detection signal processing main control circuit is connected with each of the hydrogen gas detection PPM value LCD display, the hydrogen gas detection acousto-optic alarm, the ME4-H2 hydrogen gas sensor and the relay K coil; a circuit control switch is arranged between the ME4-H2 hydrogen gas sensor and the hydrogen gas detection signal processing main control circuit.
Description
Technical field
The present invention relates to a kind of protective device, especially a kind of hydrogen is monitoring and active protective device and method automatically.
Background technology
Hydrogen is in petrochemical industry, electronics industry, metallurgical industry, food processing, float glass, Minute Organic Synthesis, aviationThe aspects such as space flight have a wide range of applications. In utilization process, may occur in confined space environment density of hydrogen too high, causeSecurity incident. Therefore,, there being the issuable industrial production operation of hydrogen workshop, density of hydrogen detection alarm often to be installedDevice. And the hydrogen gas monitoring alarm function singleness of current industrial employing, in the time of density of hydrogen overrun,Can only send continuously hydrogen gas detection alarm signal, transmit channel and lack more signal, can only rely on and manually go to processThis situation, can not initiatively remove the dangerous condition. Once the personnel of getting rid of the danger can not be in time, easily blast and cause fire,Cause security incident.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of hydrogen simple in structure monitoring and active protective device and side automaticallyMethod.
In order to solve the problems of the technologies described above, the invention provides a kind of hydrogen monitoring and active protective device automatically, comprise hydrogen inspectionSurvey signal and process governor circuit, ME4-H2 hydrogen gas sensor, relay K coil, hydrogen gas detection PPM value LCDDisplay and hydrogen gas detect audible-visual annunciator; Described hydrogen detection signal is processed governor circuit and is detected with hydrogen gas respectivelyPPM value LCD display, hydrogen gas detect audible-visual annunciator, ME4-H2 hydrogen gas sensor, relay K coil evenConnect; Described ME4-H2 hydrogen gas sensor and hydrogen detection signal are processed between governor circuit and are provided with circuit controling switch.
As hydrogen of the present invention is monitored and the initiatively improvement of protective device automatically: hydrogen detection signal is processed master control electricityOn road, be provided with ME4-H2 hydrogen gas sensor protective device.
As hydrogen of the present invention is monitored and the initiatively further improvement of protective device automatically: described ME4-H2 hydrogenProtector for sensor is RTU remote-terminal unit, and this RTU remote-terminal unit and hydrogen detection signal are processed governor circuitSignal connects.
As to automatically monitoring and the initiatively further improvement of protective device of hydrogen of the present invention: described RTU long-range endEnd unit is connected with initiatively protective device; Described active protective device comprises water injection system, mechanical ventilation system, from dynamic circuit breakerElectric system.
Hydrogen is monitoring and active protective device using method automatically: described hydrogen gas warning device detects hydrogen gas volumeWhen concentration continues to exceed 1% in certain time limit I, RTU remote-terminal unit sends guarded command, control relay K lineEnclose electricly, open relay contact switch K, cut off the power supply of ME4-H2 hydrogen gas sensor.
As hydrogen of the present invention is monitored and the initiatively improvement of protective device using method automatically: cut off ME4-H2 hydrogenWhen gas sensor power supply, keep PPM value now constant; And send hydrogen detectable concentration PPM value letter nowNumber and alarm signal to PPM value LCD display and hydrogen detection audible-visual annunciator.
As hydrogen of the present invention is monitored and the initiatively further improvement of protective device using method automatically: work as cut-outAfter the time limit II that ME4-H2 hydrogen gas sensor is powered certain, RTU remote-terminal unit is cancelled guarded command, control relayK coil losing electricity, closed relay contact switch K, recovers the power supply of ME4-H2 hydrogen gas sensor.
As hydrogen of the present invention is monitored and the initiatively further improvement of protective device using method automatically: described hydrogenGas concentration exceedes after default numerical value, and RTU remote-terminal unit is to active protective device outgoing signal, automatic cut-off power,Mechanical ventilation system and water injection system in active protective device simultaneously; When RTU remote-terminal unit receives hydrogen gasAfter the signal that body volumetric concentration reduces, control described warning and protection system out of service.
As hydrogen of the present invention is monitored and the initiatively further improvement of protective device using method automatically: described certainTime limit I be 1 minute; Described certain time limit II is 10 minutes.
Advantage of the present invention and good effect are:
1, make ME4-H2 hydrogen gas sensor obtain timely power-off protection, extended service life;
2, increased initiatively protective device, in the time that density of hydrogen exceedes prescribed limit, system is opening protecting apparatus initiatively,The concentration that reduces hydrogen, removes the dangerous condition automatically;
3, alleviated labour, can initiatively remove the dangerous condition without manually getting rid of the danger, improved the efficiency removing the dangerous condition and also guaranteedIn the process of getting rid of the danger personnel's the security of the lives and property.
Brief description of the drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is hydrogen monitoring and active protective device structure chart automatically;
Fig. 2 is hydrogen monitoring and active protective device flow chart automatically.
Detailed description of the invention
Embodiment 1, Fig. 1 have provided a kind of the present invention with Fig. 2 and have been achieved in that it includes initiatively protective device, hydrogenGas detection signal is processed governor circuit, ME4-H2 hydrogen gas sensor, relay K coil, hydrogen gas detection PPM valueLCD display and hydrogen gas detect audible-visual annunciator. This hydrogen detection signal process governor circuit respectively with hydrogen gasDetect PPM value LCD display, hydrogen gas detection audible-visual annunciator, ME4-H2 hydrogen gas sensor, relay K lineCircle connects; ME4-H2 hydrogen gas sensor and hydrogen detection signal are processed between governor circuit and are provided with circuit controling switch. HydrogenGas detection signal is processed on governor circuit and is provided with ME4-H2 hydrogen gas sensor protective device. ME4-H2 hydrogen gas sensor is protectedProtection unit is RTU remote-terminal unit, and this RTU remote-terminal unit and hydrogen detection signal are processed governor circuit signal and connectedConnect. RTU remote-terminal unit is connected with initiatively protective device; Described active protective device comprises that water injection system, machinery lead toWind system, auto-power-off system.
RTU remote-terminal unit of the present invention carries out signal processing by processing governor circuit by hydrogen detection signal, andCarry out emergency processing by connected active protective device.
Of the present inventionly specifically make use procedure as follows:
This RTU remote-terminal unit is processed the density of hydrogen that sends of governor circuit and is exceeded setting receiving hydrogen detection signalConcentration range signal after, automatically cut off the power supply in this space, simultaneously in active protective device, (detect letter by hydrogenNumber process governor circuit) water injection system, automatic ventilation system sends instruction, opens initiatively protective device.
In the time that hydrogen gas warning device detects that hydrogen gas volumetric concentration continued to exceed 1% in one minute, send immediately guarantorProtect order, control relay K coil obtains electric, opens relay contact switch K, cuts off ME4-H2 hydrogen gas sensor and suppliesElectricity, protection ME4-H2 hydrogen gas sensor is not damaged. Meanwhile, keep PPM value now constant, send hydrogen nowGas detectable concentration PPM value signal and alarm signal detect audible-visual annunciator to PPM value LCD display and hydrogen. 10 pointsZhong Hou, cancels guarded command DO1, control relay K coil losing electricity, and closed relay contact switch K, recovers ME4-H2Hydrogen gas sensor power supply, the volumetric concentration of monitoring hydrogen gas is analyzed in continuation, if hydrogen gas volumetric concentration still continues 1 pointClock exceedes 1%, again sends guarded command DO1, cuts off ME4-H2 hydrogen gas sensor and powers to protect sensor, extendsThe service life of ME4-H2 hydrogen gas sensor.
Increase RTU remote-terminal unit. Reaching outside the basic function that shows numerical value and warning, RTU remote-terminal unitReceiving hydrogen gas concentration exceedes after default numerical value. To active protective device outgoing signal, automatic cut-off power, simultaneouslyStart mechanical ventilation system and water injection system, reduce the temperature in this space and reduce Hydrogen in Air concentration with this. RTURemote-terminal unit control protection system continues to open, and by the time receives after the signal of hydrogen gas volumetric concentration reduction. Go upState warning out of service with protection system.
As shown in Figure 1 and Figure 2:
In figure, 1,2 is supply line, and 3 is the output of hydrogen gas concentration PPM value signal, and 4 is hydrogen gas concentration acousto-opticAlarm signal output, 5 is the output of hydrogen gas concentration PPM value LCD display, 6 is hydrogen gas high concentration, protectsProtect the output of order DO1 signal, 7 is hydrogen gas high concentration, starts the output of water injection system signal, and 8 is that hydrogen gas is highConcentration, starts the output of mechanical ventilation system signal, and 9 is hydrogen gas high concentration, the signal of cutting off the electricity supply output, and K is relayDevice coil and electric shock switch.
Finally, it is also to be noted that, what more than enumerate is only a specific embodiment of the present invention. Obviously, the present invention is notBe limited to above embodiment, can also have many distortion. Those of ordinary skill in the art can be direct from content disclosed by the inventionAll distortion of deriving or associating, all should think protection scope of the present invention.
Claims (9)
1. hydrogen monitoring and an active protective device automatically, comprises hydrogen detection signal processing governor circuit, ME4-H2Hydrogen gas sensor, relay K coil, hydrogen gas detect PPM value LCD display and hydrogen gas detects sound and light alarmDevice; It is characterized in that: described hydrogen detection signal is processed governor circuit and detected PPM value LCD demonstration with hydrogen gas respectivelyDevice, hydrogen gas detect audible-visual annunciator, ME4-H2 hydrogen gas sensor, the connection of relay K coil;
Described ME4-H2 hydrogen gas sensor and hydrogen detection signal are processed between governor circuit and are provided with circuit controling switch.
2. hydrogen according to claim 1 monitoring and active protective device automatically, is characterized in that: hydrogen detection signal placeOn reason governor circuit, be provided with ME4-H2 hydrogen gas sensor protective device.
3. hydrogen according to claim 2 monitoring and active protective device automatically, is characterized in that: described ME4-H2 hydrogenGas sensor protective device is RTU remote-terminal unit, and this RTU remote-terminal unit and hydrogen detection signal are processed master control electricityRoad signal connects.
4. hydrogen according to claim 3 monitoring and active protective device automatically, is characterized in that: described RTU is long-rangeTerminal unit is connected with initiatively protective device;
Described active protective device comprises water injection system, mechanical ventilation system, auto-power-off system.
5. the using method based on the automatic monitoring of hydrogen claimed in claim 4 and active protective device, is characterized in that:Described hydrogen gas warning device detects when hydrogen gas volumetric concentration continues to exceed 1% in certain time limit I, RTURemote-terminal unit sends guarded command, and control relay K coil obtains electric, opens relay contact switch K, cuts off ME4-H2Hydrogen gas sensor power supply.
6. the automatic monitoring of hydrogen according to claim 5 and the initiatively using method of protective device, is characterized in that: cutWhen disconnected ME4-H2 hydrogen gas sensor power supply, keep PPM value now constant;
And send hydrogen detectable concentration PPM value signal now and alarm signal to PPM value LCD display and hydrogenDetect audible-visual annunciator.
7. the automatic monitoring of hydrogen according to claim 6 and the initiatively using method of protective device, is characterized in that: whenAfter the time limit II that cut-out ME4-H2 hydrogen gas sensor is powered certain, RTU remote-terminal unit is cancelled guarded command, and control continuesElectrical equipment K coil losing electricity, closed relay contact switch K, recovers the power supply of ME4-H2 hydrogen gas sensor.
8. the automatic monitoring of hydrogen according to claim 7 and the initiatively using method of protective device, is characterized in that: instituteState hydrogen gas concentration and exceed after default numerical value, RTU remote-terminal unit, to active protective device outgoing signal, is cut automaticallyPower-off source, simultaneously mechanical ventilation system and the water injection system in active protective device;
When RTU remote-terminal unit receives after the signal of hydrogen gas volumetric concentration reduction, control described warning and protectionSystem is out of service.
9. the automatic monitoring of hydrogen according to claim 8 and the initiatively using method of protective device, is characterized in that: instituteStating certain time limit I is 1 minute;
Described certain time limit II is 10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033243.6A CN105605735A (en) | 2015-12-31 | 2015-12-31 | Hydrogen gas automatically-monitoring and actively-protecting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033243.6A CN105605735A (en) | 2015-12-31 | 2015-12-31 | Hydrogen gas automatically-monitoring and actively-protecting device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105605735A true CN105605735A (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511033243.6A Pending CN105605735A (en) | 2015-12-31 | 2015-12-31 | Hydrogen gas automatically-monitoring and actively-protecting device and method |
Country Status (1)
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| CN (1) | CN105605735A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504637A (en) * | 2017-08-18 | 2017-12-22 | 广东美的制冷设备有限公司 | The control method and device of air conditioner and wherein dust sensor |
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Application publication date: 20160525 |