CN205230284U - Explosion -proof combustible gas detector of intelligent pronunciation - Google Patents
Explosion -proof combustible gas detector of intelligent pronunciation Download PDFInfo
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- CN205230284U CN205230284U CN201521029295.1U CN201521029295U CN205230284U CN 205230284 U CN205230284 U CN 205230284U CN 201521029295 U CN201521029295 U CN 201521029295U CN 205230284 U CN205230284 U CN 205230284U
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Abstract
The utility model relates to an explosion -proof combustible gas detector of intelligent pronunciation belongs to and contains the technical field under explosivity, corrosivity or the combustible gas environment in the industry field, and the device is provided with the various humanized audio alert contents that have, and which kind of manipulation processing the suggestion field force must carry out, and field force's gaseous which kind of leakage degree that is in at present also can be reminded very strikingly to the pilot lamp of corresponding colour simultaneously, needs which kind of attention degree etc. The concentration of various gases can be realized through the sensor module who changes the difference and the humanized audio alert function that the detection realized acousto -optic warning, realization differentiation gas leakage degree is simultaneously revealed, multistage detectable concentration standard is carried out the scene respectively and is set for, the interior humiture compensating circuit that establishes can be under any ambient temperature, normal steady job, pilot lamp A variety of colors distinguishes different gas strength warning ranks, makes field force surveyability at a distance.
Description
Technical field
The utility model to belong in industrial circle containing the technical field under explosive, corrosivity or inflammable gas environment, is specifically related to the explosion-proof inflammable gas detector of a kind of intelligent voice.
Background technology
Inflammable, explosive place, such as: oil, chemical industry, medicine, grain, military project, the place such as satellite and MISSILE LAUNCHING, often can run into various inflammable, the dangerous gas of explosive tool and steam, there are as these industrial enterprise of certain operational danger, all can there is the problems such as gas leakage in scene, in order to avoid the generation of accident, inflammable gas detector can be installed usually carry out for present case enterprise and detect and report to the police, when Site Detection reaches blast critical point to gas concentration, alerting signal can be sent report to the police, ensure the life security of site work workman.
Product is in the market generally report to the police with the sound of hummer, volume is at about 80db, can only be judged by sound (being generally do or mi), alarm form is single, its shortcoming is that sharpness is relatively not high, especially, when versus environmental is noisy, the correct judgement of staff is affected.
Utility model content
For the deficiencies in the prior art, the utility model proposes the explosion-proof inflammable gas detector of a kind of intelligent voice, to reach Real-Time Monitoring hazardous gas concentration, multistage hommization voice overload alarm, the multi-colour LEDs such as Blue Curacao Huang Hong are intuitively warned gas on-site and are leaked situation, and the detecting device of reporting to the police than existing single-stage more can be pinpointed the problems ahead of time, solves a problem promptly if having time, Accident prevention expands, and reduces the object of property loss and casualties.
The explosion-proof inflammable gas detector of a kind of intelligent voice, comprise inflammable gas detecting sensor, power supply processing circuit, warning circuit and comparator module, wherein, the output terminal of described inflammable gas detecting sensor connects the input end of comparator module, and the output terminal of comparator module connects warning circuit; Described power supply processing circuit connects inflammable gas detecting sensor, warning circuit and comparator module simultaneously;
Described comparator module comprises signal conversion circuit, voltage-reference is adjusted circuit, first comparer, second comparer, 3rd comparer and the 4th comparer, wherein, the output terminal of signal conversion circuit connects the normal phase input end of the first comparer respectively, the normal phase input end of the second comparer, the normal phase input end of the 3rd comparer and the normal phase input end of the 4th comparer, the adjust output terminal of circuit of voltage-reference connects the inverting input of the first comparer respectively, the inverting input of the second comparer, the inverting input of the 3rd comparer and the inverting input of the 4th comparer, the output terminal of the first comparer, the output terminal of the second comparer, output terminal and the output terminal of the 4th comparer of the 3rd comparer are all connected the input end of warning circuit.
This detector also comprises space signal output circuit.
Described warning circuit comprises voice alarm module, loudspeaker and multi-colour alarm lamp.
This detector comprises the first auxiliary reclay, the second auxiliary reclay, the 3rd auxiliary reclay and the 4th auxiliary reclay, first output terminal of described comparator module connects one end of the first auxiliary reclay, and the other end of the first auxiliary reclay connects the 24V output terminal of comparator module; Second output terminal of comparator module connects one end of the second auxiliary reclay, and the other end of the second auxiliary reclay connects the 24V output terminal of comparator module; 3rd output terminal of comparator module connects one end of the 3rd auxiliary reclay, and the other end of the 3rd auxiliary reclay connects the 24V output terminal of comparator module; 4th output terminal of comparator module connects one end of the 4th auxiliary reclay, and the other end of the 4th auxiliary reclay connects the 24V output terminal of comparator module;
The first input end of described warning circuit and the first normally closed contact being connected the first normally opened contact of the first auxiliary reclay, the first normally closed contact of the second auxiliary reclay, the first normally closed contact of the 3rd auxiliary reclay and the 4th auxiliary reclay between earth terminal successively; Second input end and second normally closed contact being connected the first normally opened contact of the second auxiliary reclay, the second normally closed contact of the 3rd auxiliary reclay and the 4th auxiliary reclay between earth terminal successively of warning circuit; The 3rd of warning circuit is connected the first normally opened contact of the 3rd auxiliary reclay and the 3rd normally closed contact of the 4th auxiliary reclay successively between input end with earth terminal; Of warning circuit is connected the first normally opened contact of the 4th auxiliary reclay between four-input terminal with earth terminal.
The utility model advantage:
The utility model proposes the explosion-proof inflammable gas detector of a kind of intelligent voice, be provided with the various audio alert content with hommization, the light and heavy degree of current alerts state can clearly be described, which kind of operational processes prompting field staff must carry out, the pilot lamp of respective color also can very observably remind the current gas of field staff to be in which kind of leakiness simultaneously, needs which kind of attention degree etc.; The concentration leak detection that can realize the various gases such as hydrogen, liquefied gas, methane, propane, butane by changing different sensor module can realize sound and light alarm simultaneously, realizes the hommization voice alarm function (voice content can be changed arbitrarily) distinguishing Leakage Gas degree; Multistage detectable concentration standard can carry out scene setting respectively; Inside establish temperature and humidity compensation circuit, can under any environment temperature, the work of normal table; Input voltage AC110V, AC220V, DC12V, DC24V can select; Pilot lamp multiple color (blue, yellow, orange, red) distinguishes different gas concentration alert levels, makes field staff at a distance very clear.
Accompanying drawing explanation
Fig. 1 is the intelligent voice explosion-proof inflammable gas panel detector structure block diagram of a kind of embodiment of the utility model;
Fig. 2 is the intelligent voice explosion-proof inflammable gas detector circuit schematic diagram of a kind of embodiment of the utility model;
Fig. 3 is the comparator module circuit theory diagrams of a kind of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing, a kind of embodiment of the utility model is described further.
In the utility model embodiment, as shown in Figure 1, the explosion-proof inflammable gas detector of intelligent voice comprises inflammable gas detecting sensor, power supply processing circuit, warning circuit, comparator module, space signal output circuit; Warning circuit comprises again voice alarm module, the first auxiliary reclay, the second auxiliary reclay, the 3rd auxiliary reclay and the 4th auxiliary reclay, loudspeaker and warning lamp; Wherein, the output terminal of described inflammable gas detecting sensor connects the input end of comparator module, and the output terminal of comparator module connects the KA1-KA4 auxiliary reclay coil of warning circuit; Described power supply processing circuit connects inflammable gas detecting sensor, warning circuit and comparator module simultaneously, for each circuit provides 24V electricity;
In the utility model embodiment, inflammable gas detecting sensor adopts SGA-400-H2 model, first auxiliary reclay, the second auxiliary reclay, the 3rd auxiliary reclay and the 4th auxiliary reclay all adopt RXM4LB1BDDC24V model, warning lamp adopts BJD-EJDC24V model, loudspeaker adopts BYS-25W8 Europe model, warning circuit adopts JQE960DC24Vv1.1 model, and Switching Power Supply adopts S-50-24 model;
In the utility model embodiment, the function of power supply processing circuit has been the Power convert in early stage of whole product, is the reference power supply that equipment needs by the Power convert that user inputs; Inflammable gas detecting sensor completes the detection of external flammable gas concentration, and gas with various concentration signal is converted to electric signal.
In the utility model embodiment, comparator module is the key link of alarm, and it is made up of signal conversion circuit, voltage-reference Circuit tuning and signal comparator circuit again; The signal that sensor exports by signal conversion circuit is further filter amplifying processing again, the electric signal of forming device accreditation, compare with the voltage-reference of setting, voltage-reference Circuit tuning completes the setting of corresponding gas concentration standard of comparison, the concentration that different voltage is corresponding different; For comparing with the converted output signal of sensor, this alarm designs can carry out 4 grade standard settings.
In the utility model embodiment, warning circuit has been the topworks of warning function; It is made up of alarm control circuit, voice alarm module, loudspeaker and warning lamp; When the output signal of comparer is determined to need to report to the police, first select corresponding audio alert content by alarm control circuit, to be delivered in loudspeaker by the voice content kept in advance selected by voice alarm module again, play back finally by loudspeaker, while broadcasting, corresponding different colours pilot lamp also starts luminous alarm.
In the utility model embodiment, space signal output circuit completes this alarm space signal and exports, and these signals can complete the display of gas detect concentration data for user, automatically control corresponding motor start and stop or solenoid valve opening and closing etc.The signal exported has a road analog quantity and 4 way switch amounts, can select not export; In addition, as long as gas with various detecting sensor module changed by this alarm, namely can be changed into the Leakage inspection Multi-stage alarming device of corresponding gas.
In the utility model embodiment, voltage signal enters Switching Power Supply, be converted to subsequent conditioning circuit can normal voltage DC24, use in order to subsequent sections circuit; Inflammable gas detecting sensor adopts gas detection sensor module that the gas data of detection is carried out the data processings such as data amplification, temperature and humidity compensation, detectable concentration result is exported from VOUT end in the form of a voltage, delivers in comparator module.
In the utility model embodiment, as shown in Figure 1, described comparator module comprises signal conversion circuit, voltage-reference is adjusted circuit, first comparer, second comparer, 3rd comparer and the 4th comparer, wherein, the output terminal of signal conversion circuit connects the normal phase input end of the first comparer respectively, the normal phase input end of the second comparer, the normal phase input end of the 3rd comparer and the normal phase input end of the 4th comparer, adjust four output terminals of circuit of voltage-reference connect the inverting input of the first comparer respectively, the inverting input of the second comparer, the inverting input of the 3rd comparer and the inverting input of the 4th comparer, the output terminal of the first comparer, the output terminal of the second comparer, output terminal and the output terminal of the 4th comparer of the 3rd comparer are all connected the input end of warning circuit.
In the utility model embodiment, as shown in Figure 2, the first output terminal Q10UT of described comparator module connects one end of the first auxiliary reclay KA1, and the other end of the first auxiliary reclay KA1 connects the 24V output terminal (10. port) of comparator module; Second output terminal Q20UT of comparator module connects one end of the second auxiliary reclay KA2, and the other end of the second auxiliary reclay KA2 connects the 24V output terminal (10. port) of comparator module; 3rd output terminal Q30UT of comparator module connects one end of the 3rd auxiliary reclay KA3, and the other end of the 3rd auxiliary reclay KA3 connects the 24V output terminal (10. port) of comparator module; 4th output terminal Q40UT of comparator module connects one end of the 4th auxiliary reclay KA4, and the other end of the 4th auxiliary reclay KA4 connects the 24V output terminal (10. port) of comparator module; VOUT output terminal and the GND of comparer hold and are connected with connection terminal 14,15 respectively, as the output for subsequent use of detectable concentration analog quantity.
In the utility model embodiment, as shown in Figure 2, the first input end S1 of described voice alarm module and the first normally closed contact being connected first normally opened contact of the first auxiliary reclay KA1, first normally closed contact of the second auxiliary reclay KA2, first normally closed contact of the 3rd auxiliary reclay KA3 and the 4th auxiliary reclay KA4 between earth terminal GND successively; Second input end S2 and second normally closed contact being connected first normally opened contact of the second auxiliary reclay KA2, second normally closed contact of the 3rd auxiliary reclay KA3 and the 4th auxiliary reclay KA4 between earth terminal GND successively of voice alarm module; 3rd input end S3 of voice alarm module and the 3rd normally closed contact of the first normally opened contact and the 4th auxiliary reclay KA4 that are connected the 3rd auxiliary reclay KA3 between earth terminal GND successively; Four-input terminal S4 and first normally opened contact being connected the 4th auxiliary reclay KA4 between earth terminal GND of warning circuit.First output terminal of voice alarm module connects the first input end of loudspeaker, and the second output terminal of voice alarm module connects the second input end of loudspeaker.
In the utility model embodiment, as shown in Figure 2, warning lamp has 5, first warning lamp HL0 is green, second warning lamp HL1 is blue, 3rd warning lamp HL2 is yellow, 4th warning lamp HL3 is orange, 5th warning lamp HL4 is red, first warning lamp HL0 connects the two ends of 24V power supply by first normally closed contact of the first auxiliary reclay KA1, second warning lamp HL1 is successively by second normally opened contact of the first auxiliary reclay KA1, second normally closed contact of the second auxiliary reclay KA2, 3rd normally closed contact of the 3rd auxiliary reclay KA3 is connected the two ends of 24V power supply with the 4th normally closed contact of the 4th auxiliary reclay KA4, 3rd warning lamp HL2 is successively by 5 constant virtues closed contact of second normally opened contact of the second auxiliary reclay KA2, the 4th normally closed contact of the 3rd auxiliary reclay KA3 and the 4th auxiliary reclay KA4, 4th warning lamp HL3 is connected the two ends of 24V power supply successively with the 6th normally closed contact of the 4th auxiliary reclay KA4 by second normally opened contact of the 3rd auxiliary reclay KA3, 5th warning lamp HL4 connects the two ends of 24V power supply by second normally opened contact of the 4th auxiliary reclay KA4,
In the utility model embodiment, as shown in Figure 2, the two ends of the 3rd normally opened contact of the first auxiliary reclay KA1 connect one end of lead-out terminal 16,17 respectively, the two ends of the 3rd normally opened contact of the second auxiliary reclay KA2 connect one end of lead-out terminal 18,19 respectively, the two ends of the 3rd normally opened contact of the 3rd auxiliary reclay KA3 connect one end of lead-out terminal 20,21 respectively, the two ends of the 3rd normally opened contact of the 4th auxiliary reclay KA4 connect one end of lead-out terminal 22,23 respectively, export as warning backup circuit breaker amount at different levels;
In the utility model embodiment, first normally opened contact of the first auxiliary reclay KA1, the second normally opened contact, the 3rd normally opened contact action are identical; First normally opened contact of the second auxiliary reclay KA2, the second normally opened contact, the 3rd normally opened contact action are identical; First normally opened contact of the 3rd auxiliary reclay KA3, the second normally opened contact, the 3rd normally opened contact action are identical; First normally opened contact of the 4th auxiliary reclay KA4, the second normally opened contact, the 3rd normally opened contact action are identical;
In the utility model embodiment, as shown in Figure 2, detection voltage and setting voltage compare by comparator module, which obtains electric to determine KA1 ~ KA4 auxiliary reclay according to actual comparative result, which must not be electric, electric auxiliary reclay on it all normally opened contacts close simultaneously, normally closed contact disconnects simultaneously.This circuit designs 4 road thresholdings altogether, and when testing result is less than thresholding 1, the first auxiliary reclay KA1, the second auxiliary reclay KA2, the 3rd auxiliary reclay KA3 and the 4th auxiliary reclay KA4 all must not be electric, alarm free; When testing result be greater than thresholding 1 be less than thresholding 2 time, the first auxiliary reclay KA1 obtains electric, the second auxiliary reclay KA2, the 3rd auxiliary reclay KA3 and the 4th auxiliary reclay KA4 all must not electricity, select 1 grade of warning; When testing result be greater than thresholding 2 be less than thresholding 3 time, the first auxiliary reclay KA1 and the second auxiliary reclay KA2 obtains electric, the 3rd auxiliary reclay KA3 and the 4th auxiliary reclay KA4 all must not electricity, select 2 grades of warnings; When testing result be greater than thresholding 3 be less than thresholding 4 time, the first auxiliary reclay KA1, the second auxiliary reclay KA2 obtain electric with the 3rd auxiliary reclay KA3, the 4th auxiliary reclay KA4 must not electricity, select 3 grades of warnings; When testing result is greater than thresholding 4, the first auxiliary reclay KA1, the second auxiliary reclay KA2, the 3rd auxiliary reclay KA3 and the 4th auxiliary reclay KA4 all electric, select 4 grades of warnings.
In the utility model embodiment, voice alarm module is provided with USB computer interfaceJi Suanjijiekou and 4M electrically-erasable eeprom memory, and storer stores 4 kinds of alarm voices (can make alarm sound according to the requirement of user); Voice alarm module outer setting has the wire jumper of different phonetic, delivers in loudspeaker by wire jumper by corresponding voice content; When comparison module comparative result alarm free, the normally opened contact of the normally opened contact of the first auxiliary reclay KA1, the normally opened contact of the second auxiliary reclay KA2, the 3rd auxiliary reclay KA3 and all non-adhesive of normally opened contact of the 4th auxiliary reclay KA4, now alarm speaker is without voice output, and green indicating lamp is bright; When comparison module comparative result is 1 grade of warning, the normally opened contact adhesive of the first auxiliary reclay KA1, the normally closed contact adhesive of the normally closed contact of the second auxiliary reclay KA2, the normally closed contact of the 3rd auxiliary reclay KA3 and the 4th auxiliary reclay KA4, now loudspeaker exports 1 grade of audio alert content, blue alarm lamp is bright simultaneously, show that current alerts hazard level is comparatively light, arouse attention, make suitable scene ventilation process; When comparison module comparative result is 2 grades of warnings, the normally opened contact of the first auxiliary reclay KA1, the normally opened contact adhesive of the second auxiliary reclay KA2, the normally closed contact of the 3rd auxiliary reclay KA3 and the normally closed contact adhesive of the 4th auxiliary reclay KA4, now loudspeaker exports 2 grades of audio alert contents, yellow indicator lamp is bright simultaneously, show alarm level going up one level, field staff should take further solution, as air flux increase etc.; When comparison module comparative result is 3 grades of warnings, the normally opened contact adhesive of the normally opened contact of the first auxiliary reclay KA1, the normally opened contact of the second auxiliary reclay KA2, the 3rd auxiliary reclay KA3, the normally closed contact adhesive of the 4th auxiliary reclay KA4, now loudspeaker exports 3 grades of audio alert contents, orange indicating light is bright simultaneously, show that alarm level is higher, higher emergency processing should be taked: forced ventilation, pass valve etc.; When comparison module comparative result is 4 grades of warnings, the normally opened contact of the first auxiliary reclay KA1, the normally opened contact of the second auxiliary reclay KA2, the normally opened contact of the 3rd auxiliary reclay KA3 and the equal adhesive of normally opened contact of the 4th auxiliary reclay KA4, loudspeaker exports 4 grades of audio alert contents, red led is bright simultaneously, show to be in the highest alarm level now, highest emergency processing must be carried out immediately: forced ventilation, close valve, cut off necessary power supply.
In the utility model embodiment, gas detection sensor module Concentration Testing result also can export, in order to other equipment utilizations as a road analog data; 4 passive contacts of auxiliary reclay export respectively and use for external unit.
In the utility model embodiment, comparator module is designed with the delay circuit of time regulatable, is used for meeting sensor module and powers on for the first time required preheating time; Voice alarm module is provided with volume adjustment pot, can be realized the change of speaker volume by it.
In the utility model embodiment, as shown in Figure 3, input DC24V voltage and be converted to+DC5V through three terminal regulator 7805, electric capacity C1, electric capacity C2 voltage conversion circuit; Adjustable delay DC24V circuit is formed by resistance R1, pot W0, electrochemical capacitor C5, switching tube Q0; + 5V, GND is for providing the power supply needed for gas detection sensor module, 0.4 ~ 2V signal that module exports, one tunnel enters in B1 ~ B4 voltage comparator through voltage follower B01 respectively, another road exports through voltage follower B02, as the output for subsequent use of gas concentration analog quantity, drawn by terminal VOUT; By resistance R11, R21, R31 and R41, W1 ~ W4 forms 4 voltage comparator threshold sets circuit, and R12, R22, R32 and R42 are current-limiting resistances, and R13, R23, R33 and R43 are pull-up resistors, and D1 ~ D4 is protection diode.
Claims (4)
1. the explosion-proof inflammable gas detector of intelligent voice, it is characterized in that, comprise inflammable gas detecting sensor, power supply processing circuit, warning circuit and comparator module, wherein, the output terminal of described inflammable gas detecting sensor connects the input end of comparator module, and the output terminal of comparator module connects warning circuit; Described power supply processing circuit connects inflammable gas detecting sensor, warning circuit and comparator module simultaneously;
Described comparator module comprises signal conversion circuit, voltage-reference is adjusted circuit, first comparer, second comparer, 3rd comparer and the 4th comparer, wherein, the output terminal of signal conversion circuit connects the normal phase input end of the first comparer respectively, the normal phase input end of the second comparer, the normal phase input end of the 3rd comparer and the normal phase input end of the 4th comparer, the adjust output terminal of circuit of voltage-reference connects the inverting input of the first comparer respectively, the inverting input of the second comparer, the inverting input of the 3rd comparer and the inverting input of the 4th comparer, the output terminal of the first comparer, the output terminal of the second comparer, output terminal and the output terminal of the 4th comparer of the 3rd comparer are all connected the input end of warning circuit.
2. the explosion-proof inflammable gas detector of intelligent voice according to claim 1, it is characterized in that, this detector also comprises space signal output circuit.
3. the explosion-proof inflammable gas detector of intelligent voice according to claim 1, is characterized in that, described warning circuit comprises voice alarm module, loudspeaker and multi-colour alarm lamp.
4. the explosion-proof inflammable gas detector of intelligent voice according to claim 1, it is characterized in that, this detector comprises the first auxiliary reclay, the second auxiliary reclay, the 3rd auxiliary reclay and the 4th auxiliary reclay, first output terminal of described comparator module connects one end of the first auxiliary reclay, and the other end of the first auxiliary reclay connects the 24V output terminal of comparator module; Second output terminal of comparator module connects one end of the second auxiliary reclay, and the other end of the second auxiliary reclay connects the 24V output terminal of comparator module; 3rd output terminal of comparator module connects one end of the 3rd auxiliary reclay, and the other end of the 3rd auxiliary reclay connects the 24V output terminal of comparator module; 4th output terminal of comparator module connects one end of the 4th auxiliary reclay, and the other end of the 4th auxiliary reclay connects the 24V output terminal of comparator module;
The first input end of described warning circuit and the first normally closed contact being connected the first normally opened contact of the first auxiliary reclay, the first normally closed contact of the second auxiliary reclay, the first normally closed contact of the 3rd auxiliary reclay and the 4th auxiliary reclay between earth terminal successively; Second input end and second normally closed contact being connected the first normally opened contact of the second auxiliary reclay, the second normally closed contact of the 3rd auxiliary reclay and the 4th auxiliary reclay between earth terminal successively of warning circuit; The 3rd of warning circuit is connected the first normally opened contact of the 3rd auxiliary reclay and the 3rd normally closed contact of the 4th auxiliary reclay successively between input end with earth terminal; Of warning circuit is connected the first normally opened contact of the 4th auxiliary reclay between four-input terminal with earth terminal.
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| CN201521029295.1U CN205230284U (en) | 2015-12-09 | 2015-12-09 | Explosion -proof combustible gas detector of intelligent pronunciation |
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| CN201521029295.1U CN205230284U (en) | 2015-12-09 | 2015-12-09 | Explosion -proof combustible gas detector of intelligent pronunciation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106887119A (en) * | 2017-05-03 | 2017-06-23 | 山东科技大学 | A kind of intelligent kitchen alarm based on Internet of Things |
| CN107481471A (en) * | 2017-09-18 | 2017-12-15 | 广东美的制冷设备有限公司 | Terminal alarms method, apparatus and computer-readable recording medium |
| CN108154652A (en) * | 2017-11-24 | 2018-06-12 | 国网北京市电力公司 | Sulfur hexafluoride alarm processing method and device |
| CN114220333A (en) * | 2021-10-20 | 2022-03-22 | 应急管理部消防救援局南京训练总队 | Full-pressure tank liquid storage leakage simulation method and system |
| CN114613107A (en) * | 2022-03-17 | 2022-06-10 | 天津市金凤来仪科技有限公司 | Combustible gas leakage detection alarm device |
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2015
- 2015-12-09 CN CN201521029295.1U patent/CN205230284U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106887119A (en) * | 2017-05-03 | 2017-06-23 | 山东科技大学 | A kind of intelligent kitchen alarm based on Internet of Things |
| CN107481471A (en) * | 2017-09-18 | 2017-12-15 | 广东美的制冷设备有限公司 | Terminal alarms method, apparatus and computer-readable recording medium |
| CN108154652A (en) * | 2017-11-24 | 2018-06-12 | 国网北京市电力公司 | Sulfur hexafluoride alarm processing method and device |
| CN114220333A (en) * | 2021-10-20 | 2022-03-22 | 应急管理部消防救援局南京训练总队 | Full-pressure tank liquid storage leakage simulation method and system |
| CN114613107A (en) * | 2022-03-17 | 2022-06-10 | 天津市金凤来仪科技有限公司 | Combustible gas leakage detection alarm device |
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