CN204791488U - Burning things which may cause a fire disaster is surveyed and is reported to police and datonation -inhibition device based on wireless communication module - Google Patents
Burning things which may cause a fire disaster is surveyed and is reported to police and datonation -inhibition device based on wireless communication module Download PDFInfo
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- CN204791488U CN204791488U CN201520420043.5U CN201520420043U CN204791488U CN 204791488 U CN204791488 U CN 204791488U CN 201520420043 U CN201520420043 U CN 201520420043U CN 204791488 U CN204791488 U CN 204791488U
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Abstract
The utility model discloses a burning things which may cause a fire disaster is surveyed and is reported to police and datonation -inhibition device based on wireless communication module, including inflammable and explosive gas concentration detection unit, flame detector, lay the institute in the monitoring area master control set, with wireless communication and master control set both -way communication's remote control terminal and lay at air extractor and datonation -inhibition equipment in the monitoring area, master control set includes that a monitoring area 0 and a monitoring area 1, first parameter set up an unit and a monitoring area 2, inflammable and explosive gas concentration detection unit and flame detector all meet with a monitoring area 0, be provided with the 2nd main control chip and the 2nd wireless communication module on remote control terminal's the electronic circuit board, air extractor and datonation -inhibition equipment open by a main control chip and stop control. The utility model has the advantages of simple structure and reasonable design, the input cost is lower and can carry out remote control, use easy and simple to handle, excellent in use effect, can in time carry out the accuracy to the oil gas field burning things which may cause a fire disaster and survey and datonation -inhibition processing.
Description
Technical field
The utility model belongs to oil gas field anti-explosion explosion-suppression technical field, especially relates to a kind of fire source probing based on wireless communication module and reports to the police and explosion suppression device.
Background technology
Along with the fast development of economy, commercial production scale constantly expands, to the demand of oil gas energy products also by increasing, and the inflammable and explosive characteristic of the raw material of petro chemical industry, most intermediate, product, determine the inherent characteristics that petrochemical complex produces easy breaking out of fire, explosion accident; Add material in process of production most positions temperature exceed its spontaneous ignition temperature, leak, will involuntary ignition; Neglect Anywhere, all may lead to fire explosion.Therefore, may occur that the research of the datonation-inhibition technology of exploding then seems especially important for oil gas leakage at industrial site.Oil gas explosion suppression technology is generally divided into obstruct quick-fried technology, datonation-inhibition technology and venting of dust explosion technology three class, and the datonation-inhibition technology of current combustible oil gas turns to active explosion suppression, explosion arrestment technology from passive pressure release is datonation-inhibition.For the safety practice such as venting of dust explosion, flame proof, oil gas is datonation-inhibition avoids explosion wave to the destruction of surrounding people and building, also can reduce toxic gas, unburning material, flame etc. to be discharged in air and to cause subsequent explosion or pollution, be a kind of safer, environmental protection, effective explosion-proof method.
Based on industrial fire & safety requirement, China is about producer is on the basis absorbing external advanced security against fire supervisory system, by developing and supporting application, define comprehensive security against fire monitoring system special in industrial processes, mainly comprise industrial special SL-M300 security against fire network monitoring system, SL-C300 telecommunication network customer service center system, SL-S200 industrial fire water spray fire extinguish system, SL-D500 industry dedicated multilevel warning line-type heat detector etc.But at present, the fire safety evaluating monitoring system that middle-size and small-size oil gas field is imperfect.The special comprehensive security against fire monitoring system investment of large-scale industrial processes is huge, and operating system is complicated and function is comparatively single, and especially often only rely in prevention the process of accident, once prediction and alarm does not put in place, accident just cannot stop.And by the fire source probing technology of chip microcontroller, no matter in reliability, form the feature of device, that to be large-scale monitoring system be in many aspects such as control method, working method, volume, weight, equipment debugging of enforcement is incomparable, and because single-chip microcomputer Operation and Maintenance is simple, decrease the requirement to operating personnel's professional knowledge, be conducive to the popularization of system.Thus, need design that a kind of structure is simple, reasonable in design, input cost is lower and Long-distance Control can be carried out, use easy and simple to handle, that result of use the is good fire source probing based on wireless communication module to report to the police and explosion suppression device, be mainly used in middle-size and small-size oil gas field, accurate detection and datonation-inhibition process can be carried out to oil gas field burning things which may cause a fire disaster in time.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of fire source probing based on wireless communication module is provided to report to the police and explosion suppression device, its structure is simple, reasonable in design, input cost is lower and Long-distance Control can be carried out, use easy and simple to handle, result of use good, can carry out accurate detection and datonation-inhibition process in time to oil gas field burning things which may cause a fire disaster.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of fire source probing based on wireless communication module is reported to the police and explosion suppression device, it is characterized in that: comprise the flammable explosive gas concentration detecting unit flammable explosive gas concentration in institute monitored area being carried out to detection in real time, the flame detector carrying out detecting in real time is there is to whether there being flame in institute monitored area, be laid in the master control set in institute monitored area, the remote control terminal of two-way communication and the exhaust equipment be laid in institute monitored area and device of explosion suppression is carried out with communication and described master control set, the first wireless communication module that described master control set comprises the first main control chip and connects with the first main control chip respectively, first parameter set unit and the first display unit, described flammable explosive gas concentration detecting unit and flame detector all connect with the first main control chip, described remote control terminal comprises shell, be laid in electronic circuit board in described shell and second parameter set unit of installing on the housing and the second display unit, the second wireless communication module described electronic circuit board being provided with the second main control chip and connecting with the second main control chip, described second parameter set unit and the second display unit all connect with the second main control chip, described first main control chip is communicated with the second wireless communication module by the first wireless communication module with between the second main control chip, described first main control chip and the second main control chip are STC89C52 single-chip microcomputer, and described first wireless communication module and the second wireless communication module are nRF905 wireless module,
Described exhaust equipment and device of explosion suppression carry out on off control by the first main control chip; Described exhaust equipment comprises main exhaust fan, exhaust fan for subsequent use, the first fan drive circuit driven main exhaust fan and the second fan drive circuit driven exhaust fan for subsequent use, described main exhaust fan connects with the first fan drive circuit, described exhaust fan for subsequent use connects with the second fan drive circuit, and described first fan drive circuit and the second fan drive circuit connect with the first main control chip; The flame snuffer driving circuit that described device of explosion suppression comprises Automatic Fire Extinguisher and drives Automatic Fire Extinguisher, described Automatic Fire Extinguisher connects with flame snuffer driving circuit, and described flame snuffer driving circuit connects with the first main control chip.
The above-mentioned fire source probing based on wireless communication module is reported to the police and explosion suppression device, and it is characterized in that: described flammable explosive gas concentration detecting unit connects with A/D change-over circuit, described A/D change-over circuit connects with the first main control chip; Described flame detector is UV UV sensor.
The above-mentioned fire source probing based on wireless communication module is reported to the police and explosion suppression device, and it is characterized in that: the under-voltage protecting circuit that described master control set also comprises power supply and connects with power supply, described under-voltage protecting circuit connects with the first main control chip;
Described power supply comprises main power circuit, standby power supply circuit and regulating circuit, and the power output end of described main power circuit and described standby power supply circuit all connects with described regulating circuit; Described flammable explosive gas concentration detecting unit, flame detector, the first fan drive circuit, the second fan drive circuit, flame snuffer driving circuit, the first wireless communication module, the first parameter set unit and the first display unit all connect with described regulating circuit; Described main power circuit comprises accumulator, the minus earth of described accumulator and its positive pole connects described regulating circuit; The voltage stabilizer that described standby power supply circuit comprises the AC transformer connected with communication power supply, the bridge rectifier circuit connected with described AC transformer and connects with described bridge rectifier circuit, the power output end of described voltage stabilizer connects with described regulating circuit;
The second voltage comparator that described under-voltage protecting circuit comprises controllable accurate source of stable pressure and connects with described controllable accurate source of stable pressure; the power output end of described main power circuit and described standby power supply circuit all connects with the inverting input of described second voltage comparator; described controllable accurate source of stable pressure is chip TL431 and its output terminal connects with the normal phase input end of described second voltage comparator, and the signal output part of described second voltage comparator connects with the first main control chip.
The above-mentioned fire source probing based on wireless communication module is reported to the police and explosion suppression device, it is characterized in that: described second voltage comparator is chip LM393; The power output end of described main power circuit and described standby power supply circuit all connects with a stiff end of slide rheostat R6, and another stiff end ground connection of slide rheostat R6 and its sliding end connect with the 1IN+ pin of described second voltage comparator; 1st pin of chip TL431 connects with the 1IN-pin of described second voltage comparator, and the OUT1 pin of described second voltage comparator connects with the P3.3 pin of the first main control chip.
The above-mentioned fire source probing based on wireless communication module is reported to the police and explosion suppression device, it is characterized in that: described flammable explosive gas concentration detecting unit comprises MQ-4 gas sensor and the first voltage comparator, the signal output part of described MQ-4 gas sensor connects with the signal input part of described first voltage comparator, and described first voltage comparator is chip LM393 and it connects with main control chip.
The above-mentioned fire source probing based on wireless communication module is reported to the police and explosion suppression device, and it is characterized in that: described A/D change-over circuit is chip ADC0809, the signal output part of described MQ-4 gas sensor connects with the IN0 pin of chip ADC0809.
The above-mentioned fire source probing based on wireless communication module is reported to the police and explosion suppression device, and it is characterized in that: described flame snuffer driving circuit comprises triode Q8 and Q9, the P2.0 pin of described first main control chip connects the base stage of triode Q8 after resistance R19; The collector of triode Q8 divides two-way, and a road connects VCC power end after resistance R20, and another road connects the base stage of triode Q9; The equal ground connection of emitter of triode Q8 and Q9; Two power ends of described Automatic Fire Extinguisher connect with the collector of VCC power end and triode Q9 respectively.
The above-mentioned fire source probing based on wireless communication module is reported to the police and explosion suppression device, and it is characterized in that: described first fan drive circuit comprises triode Q2 and Q3, the P2.4 pin of described first main control chip connects the base stage of triode Q2 after resistance R10; The collector of triode Q2 divides two-way, and a road connects VCC power end after resistance R11, and another road connects the base stage of triode Q3; The equal ground connection of emitter of triode Q2 and Q3; Two power ends of described main exhaust fan connect with the collector of VCC power end and triode Q3 respectively;
Described second fan drive circuit comprises triode Q4 and Q5, and the P2.3 pin of described first main control chip connects the base stage of triode Q4 after resistance R12; The collector of triode Q4 divides two-way, and a road connects VCC power end after resistance R13, and another road connects the base stage of triode Q5; The equal ground connection of emitter of triode Q4 and Q5; Two power ends of described exhaust fan for subsequent use connect with the collector of VCC power end and triode Q5 respectively.
The utility model compared with prior art has the following advantages:
1, structure is simple, reasonable in design and input cost is lower, easy-to-connect.
2, use easy and simple to handle, can Long-distance Control be carried out and result of use is good, testing result is accurate, between master control set and remote control terminal with communication with carry out two-way communication, by flammable explosive gas concentration detecting unit, the flammable explosive gas concentration in institute monitored area in oil gas field is detected in real time, main control chip carries out on off control according to flammable explosive gas concentration detecting unit institute detectable concentration value to main exhaust fan and exhaust fan for subsequent use, to carry out in time the flammable explosive gas concentration in institute monitored area, rapid adjustment; Simultaneously, occur detecting in real time to whether there being flame in institute monitored area by flame detector, main control chip is according to the testing result of flame detector and carry out on off control by flame snuffer driving circuit to Automatic Fire Extinguisher, carry out easy, fast processing to the naked light in institute monitored area, thus effectiveness of explosion suppression is very good.
In sum, the utility model structure is simple, reasonable in design, input cost is lower and it is easy and simple to handle to use, result of use good, is mainly used in middle-size and small-size oil gas field, can carry out accurate detection and datonation-inhibition process in time to oil gas field burning things which may cause a fire disaster.
In sum, the utility model structure is simple, reasonable in design, input cost is lower and Long-distance Control can be carried out, use easy and simple to handle, result of use good, can carry out accurate detection and datonation-inhibition process in time to oil gas field burning things which may cause a fire disaster.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Fig. 2 is the circuit theory diagrams of the utility model first main control chip.
Fig. 3 is the circuit theory diagrams of the utility model flammable explosive gas concentration detecting unit.
Fig. 4 is the circuit theory diagrams of the utility model flame detector.
Fig. 5 is the circuit theory diagrams of the utility model flame snuffer driving circuit.
Fig. 6 is the circuit theory diagrams of the utility model first fan drive circuit.
Fig. 7 is the circuit theory diagrams of the utility model second fan drive circuit.
Fig. 8 is the circuit theory diagrams of the utility model acousto-optic warning unit.
Fig. 9 is the circuit theory diagrams of the utility model A/D change-over circuit.
Figure 10 is the circuit theory diagrams of the utility model first display unit.
Figure 11 is the circuit theory diagrams of the utility model power supply.
Figure 12 is the circuit theory diagrams of the utility model under-voltage protecting circuit.
Description of reference numerals:
1-flammable explosive gas concentration detecting unit; 2-flame detector;
3-1-the first main control chip; 3-2-the second main control chip; 4-exhaust equipment;
4-1-main exhaust fan; 4-2-exhaust fan for subsequent use;
4-3-the first fan drive circuit;
4-4-the second fan drive circuit; 5-device of explosion suppression;
5-1-Automatic Fire Extinguisher; 5-2-flame snuffer driving circuit; 6-1-power supply;
6-2-under-voltage protecting circuit; 7-A/D change-over circuit;
8-1-the first parameter set unit;
8-2-the second parameter set unit; 9-1-the first display unit;
9-2-the second display unit; 10-acousto-optic warning unit;
11-the first wireless communication module;
12-the second wireless communication module.
Embodiment
As shown in Figure 1, the utility model comprises the flammable explosive gas concentration detecting unit 1 flammable explosive gas concentration in institute monitored area being carried out to detection in real time, the flame detector 2 carrying out detecting in real time is there is to whether there being flame in institute monitored area, be laid in the master control set in institute monitored area, the remote control terminal of two-way communication and the exhaust equipment 4 be laid in institute monitored area and device of explosion suppression 5 is carried out with communication and described master control set, the first wireless communication module 11 that described master control set comprises the first main control chip 3-1 and connects with the first main control chip 3-1 respectively, first parameter set unit 8-1 and the first display unit 9-1, described flammable explosive gas concentration detecting unit 1 and flame detector 2 all connect with the first main control chip 3-1.Described remote control terminal comprises shell, be laid in electronic circuit board in described shell and the second parameter set unit 8-2 installed on the housing and the second display unit 9-2, the second wireless communication module 12 described electronic circuit board being provided with the second main control chip 3-2 and connecting with the second main control chip 3-2, described second parameter set unit 8-2 and the second display unit 9-2 all connects with the second main control chip 3-2.Described first main control chip 3-1 is communicated with the second wireless communication module 12 by the first wireless communication module 11 with between the second main control chip 3-2, described first main control chip 3-1 and the second main control chip 3-2 is STC89C52 single-chip microcomputer, and described first wireless communication module 11 and the second wireless communication module 12 are nRF905 wireless module.
Described exhaust equipment 4 and device of explosion suppression 5 carry out on off control by the first main control chip 3-1; The first fan drive circuit 4-3 that described exhaust equipment 4 comprises main exhaust fan 4-1, exhaust fan 4-2 for subsequent use, drive main exhaust fan 4-1 and the second fan drive circuit 4-4 that exhaust fan 4-2 for subsequent use is driven, described main exhaust fan 4-1 connects with the first fan drive circuit 4-3, described exhaust fan 4-2 for subsequent use connects with the second fan drive circuit 4-4, and described first fan drive circuit 4-3 and the second fan drive circuit 4-4 connects with the first main control chip 3-1; The flame snuffer driving circuit 5-2 that described device of explosion suppression 5 comprises Automatic Fire Extinguisher 5-1 and drives Automatic Fire Extinguisher 5-1, described Automatic Fire Extinguisher 5-1 connects with flame snuffer driving circuit 5-2, and described flame snuffer driving circuit 5-2 connects with the first main control chip 3-1.
In the present embodiment, described flammable explosive gas concentration detecting unit 1 connects with A/D change-over circuit 7, and described A/D change-over circuit 7 connects with the first main control chip 3-1.Described flame detector 2 is UV UV sensor.
In the present embodiment, the utility model also comprises and carries out by the first main control chip 3-1 the acousto-optic warning unit 10 that controls, and described acousto-optic warning unit 10 connects with the first main control chip 3-1.
As shown in Figure 8, described acousto-optic warning unit 10 comprises sound alarm circuit and optical alarm circuit.Described sound alarm circuit comprises loudspeaker LS1 and triode Q6 and Q7, and the P2.2 pin of described first main control chip 3-1 connects the base stage of triode Q6 after resistance R14; The collector of triode Q6 divides two-way, and a road connects VCC power end after resistance R15, and another road connects with the base stage of triode Q7; Two power ends of loudspeaker LS1 connect with the collector of VCC power end and triode Q7 respectively, the equal ground connection of emitter of triode Q6 and Q7.Described optical alarm circuit comprises LED 1, and the P2.1 pin of described first main control chip 3-1 connects with the negative electrode of LED 1, and the anode of LED 1 connects VCC power end through resistance R18.
In the present embodiment, described VCC power end is+5V power end.
As shown in Figure 3, described flammable explosive gas concentration detecting unit 1 comprises MQ-4 gas sensor and the first voltage comparator, the signal output part of described MQ-4 gas sensor connects with the signal input part of described first voltage comparator, and described first voltage comparator is chip LM393 and it connects with main control chip 3.
In the present embodiment, 2nd, the 4th and the 6th pin of described MQ-4 gas sensor all connects VCC power end, 5th pin ground connection of MQ-4 gas sensor, 1st and the 3rd pin of described MQ-4 gas sensor connects and the two all connects the 2IN+ pin of the first voltage comparator, the 2IN+ pin of the first voltage comparator connects with a stiff end of slide rheostat R9, the sliding end of slide rheostat R9 and the equal ground connection of another stiff end.The VCC pin of described first voltage comparator connects VCC power end and its OUT2 pin connects the P3.4 pin of described STC89C52 single-chip microcomputer, the OUT2 pin of described first voltage comparator connects VCC power end after resistance R7, the 2IN-pin of described first voltage comparator connects the sliding end of slide resistor R8, the stiff end ground connection of slide resistor R8 and its another fixing termination VCC power end.
During physical cabling, as shown in Figure 4, described UV UV sensor is connected with the first main control chip 3-1 by interface J3.3rd pin of described interface J3 connects+12V power end and its 1st pin ground connection, and the 2nd pin of interface J3 connects the base stage of triode Q1 after resistance R1; The collector of triode Q1 divides two-way, and a road after resistance R2, connect+5V power end and another road connects the P3.2 pin of described first main control chip 3-1; The grounded emitter of triode Q1.
In the present embodiment, as shown in Figure 9, described A/D change-over circuit 7 is chip ADC0809, and the signal output part of described MQ-4 gas sensor connects with the IN0 pin of chip ADC0809.
The 13rd of described chip ADC0809, 16, 23, the equal ground connection of 24 and 25 pin and its 6th pin connect with the 22nd pin, the 11st of chip ADC0809, 12 and 9 pins all connect+5V power end, the IN0 pin (i.e. the 26th pin) of chip ADC0809 connects with the 1st pin of MQ-4 gas sensor and the 3rd pin respectively, the 6th of chip ADC0809, 7 and 10 pins connect the 28th of the first main control chip 3-1 the respectively, 27 and 26 pins, the 17th of chip ADC0809, 14, 15, 8, 18, 19, 20 and 21 pins connect the 39th of described first main control chip 3-1 the respectively, 38, 37, 36, 35, 34, 33 and 32 pins.
In the present embodiment, described Automatic Fire Extinguisher 5-1 is dry-chemical extinguisher.
During actual use, described Automatic Fire Extinguisher 5-1 also can adopt the automatic fire extinguisher of other type.
As shown in Figure 5, described flame snuffer driving circuit 5-2 comprises triode Q8 and Q9, and the P2.0 pin of described first main control chip 3-1 connects the base stage of triode Q8 after resistance R19; The collector of triode Q8 divides two-way, and a road connects VCC power end after resistance R20, and another road connects the base stage of triode Q9; The equal ground connection of emitter of triode Q8 and Q9; Two power ends of described Automatic Fire Extinguisher 5-1 connect with the collector of VCC power end and triode Q9 respectively.
During physical cabling, described Automatic Fire Extinguisher 5-1 is connected with flame snuffer driving circuit 5-2 by interface J2, and two pins of interface J2 connect with the collector of VCC power end and triode Q9 respectively.
Composition graphs 6 and Fig. 7, described first fan drive circuit 4-3 comprises triode Q2 and Q3, and the P2.4 pin of described first main control chip 3-1 connects the base stage of triode Q2 after resistance R10; The collector of triode Q2 divides two-way, and a road connects VCC power end after resistance R11, and another road connects the base stage of triode Q3; The equal ground connection of emitter of triode Q2 and Q3; Two power ends of described main exhaust fan 4-1 connect with the collector of VCC power end and triode Q3 respectively.Wherein, described main exhaust fan 4-1 is fan FUN.
Described second fan drive circuit 4-4 comprises triode Q4 and Q5, and the P2.3 pin of described first main control chip 3-1 connects the base stage of triode Q4 after resistance R12; The collector of triode Q4 divides two-way, and a road connects VCC power end after resistance R13, and another road connects the base stage of triode Q5; The equal ground connection of emitter of triode Q4 and Q5; Two power ends of described exhaust fan 4-2 for subsequent use connect with the collector of VCC power end and triode Q5 respectively.Wherein, described exhaust fan 4-2 for subsequent use is fan FUN1.
In the present embodiment, described first display unit 9-1 is 12864 LCDs.
As shown in Figure 10,2nd, the 15th, the 17th and the 20th pin of described 12864 LCDs all connects+5V power end and the equal ground connection of its 1st and the 19th pin, 3rd pin of 12864 LCDs connects the sliding end of slide rheostat R16, the stiff end ground connection of slide rheostat R16 and its another fixing termination+5V power end.7th, the 8th, the 9th, the 10th, the 11st, the 12nd, the 13rd and the 14th pin of described 12864 LCDs connects P1.0, P1.1, P1.2, P1.3, P1.4, P1.5, P1.6 and P1.7 pin of the first main control chip 3-1 respectively, and the 4th, the 5th and the 6th pin of 12864 LCDs connects P3.5, P3.6 and P3.7 pin of the first main control chip 3-1 respectively.
As shown in Figure 2, the 18th pin of described first main control chip 3-1 and the 19th pin connect with two terminals of crystal oscillator Y1 respectively, and the 18th pin of the first main control chip 3-1 and the 19th pin are respectively through electric capacity C2 and electric capacity C1 ground connection; 9th pin of described first main control chip 3-1 divides three tunnels, and a road connects+5V power end through electric capacity C3, and another road is through resistance R101 ground connection, and the 3rd tunnel connects+5V power end through reset button S1.32nd pin of described first main control chip 3-1 to the 39th pin all by connecing+5V power end after exclusion Rp1.
In conjunction with Figure 11 and Figure 12, the under-voltage protecting circuit 6-2 that described master control set also comprises power supply 6-1 and connects with power supply 6-1, described under-voltage protecting circuit 6-2 connects with the first main control chip 3-1.
Described power supply 6-1 comprises main power circuit, standby power supply circuit and regulating circuit, and the power output end of described main power circuit and described standby power supply circuit all connects with described regulating circuit; Described flammable explosive gas concentration detecting unit 1, flame detector 2, first fan drive circuit 4-3, the second fan drive circuit 4-4, flame snuffer driving circuit 5-2, the first wireless communication module 11, first parameter set unit 8-1 and the first display unit 9-1 all connect with described regulating circuit; Described main power circuit comprises accumulator, the minus earth of described accumulator and its positive pole connects described regulating circuit; The voltage stabilizer that described standby power supply circuit comprises the AC transformer connected with communication power supply, the bridge rectifier circuit connected with described AC transformer and connects with described bridge rectifier circuit, the power output end of described voltage stabilizer connects with described regulating circuit.
The second voltage comparator that described under-voltage protecting circuit 6-2 comprises controllable accurate source of stable pressure and connects with described controllable accurate source of stable pressure; the power output end of described main power circuit and described standby power supply circuit all connects with the inverting input of described second voltage comparator; described controllable accurate source of stable pressure is chip TL431 and its output terminal connects with the normal phase input end of described second voltage comparator, and the signal output part of described second voltage comparator connects with the first main control chip 3-1.
Further, described A/D change-over circuit 7 and acousto-optic warning unit 10 all connect with described regulating circuit.
In the present embodiment, described accumulator is UPS uninterrupted power source BT1000, and described voltage stabilizer is three terminal regulator 78L12.Described regulating circuit is three terminal regulator 78L05.The power output end of described main power circuit and described standby power supply circuit is+12V power end.
During physical cabling, the minus earth of UPS uninterrupted power source BT1000 and its positive pole connect the anode of diode D6, and the negative electrode of diode D6 is+12V power end.Described bridge rectifier circuit is formed by connecting by diode D1, D2, D3 and D4; The first siding ring two ends of described AC transformer connect 220V AC power respectively, and the two ends of its second siding ring connect two ac input ends of bridge rectifier circuit respectively; Two output terminals of described bridge rectifier circuit are connected to electric capacity C8, C9, C10 and C11, two output terminals of described bridge rectifier circuit are respectively direct current positive output end and direct current negative output terminal, the 1st pin of the direct current positive output termination three terminal regulator 78L12 of described bridge rectifier circuit; 2nd pin of three terminal regulator 78L12 divides two-way, and a road ground connection and another road after electric capacity C12 connect the anode of diode D5, and the negative electrode of diode D5 is+12V power end.
1st pin of described three terminal regulator 78L05 connects+12V power end and its 2nd pin is+5V power end; 2nd pin of described three terminal regulator 78L05 divides two-way, and a road is ground connection after electric capacity C13, and another road is ground connection after resistance R12 and diode (LED) 2.
As shown in figure 12, in the present embodiment, described second voltage comparator is chip LM393; The power output end of described main power circuit and described standby power supply circuit all connects with a stiff end of slide rheostat R6, and another stiff end ground connection of slide rheostat R6 and its sliding end connect with the 1IN+ pin of described second voltage comparator; 1st pin of chip TL431 connects with the 1IN-pin of described second voltage comparator, and the OUT1 pin of described second voltage comparator connects with the P3.3 pin of the first main control chip 3-1.
The 2nd pin ground connection of described chip TL431 and its 3rd pin connects+5V power end after resistance R3; 1st pin of described chip TL431 divides three tunnels, and a road connects with its 3rd pin after resistance R4, and a road connects with a stiff end of slide rheostat R5, and the 3rd tunnel connects with the sliding end of slide rheostat R5; Another stiff end ground connection of slide rheostat R5.
During physical cabling, the P3.3 pin that the OUT1 pin of described second voltage comparator meets the first main control chip 3-1 connects.
During actual use; whether described under-voltage protecting circuit 12 exists under-voltage for detecting power supply 11; contrasted by the power output end institute output voltage values of the second voltage comparator by described controllable accurate source of stable pressure institute's output voltage and described main power circuit or described standby power supply circuit, judge whether power supply 11 exists under-voltage.
Before actual use, gas concentration threshold N1 and N2 can be set by the first parameter set unit 8-1, wherein N2 > N1, also can by described remote control terminal setting gas concentration threshold N1 and N2.In actual use procedure, detected in real time by the flammable explosive gas concentration in institute monitored area in flammable explosive gas concentration detecting unit 1 pair of oil gas field, and by institute detectable concentration value N synchronous driving to the first main control chip 3-1, flammable explosive gas concentration detecting unit 1 detectable concentration value N is carried out difference comparsion with gas concentration threshold N1 and N2 by the first main control chip 3-1 respectively: as N2 > N >=N1, first main control chip 3-1 controls main exhaust fan 4-1 by the first fan drive circuit 4-3 and starts, by main exhaust fan 4-1, the flammable explosive gas concentration in institute monitored area is adjusted, as N >=N2, the first main control chip 3-1 controls exhaust fan 4-2 for subsequent use by the second fan drive circuit 4-4 and starts, and is adjusted the flammable explosive gas concentration in institute monitored area by main exhaust fan 4-1 and exhaust fan 4-2 for subsequent use, as N < N1, the first main control chip 3-1 controls main exhaust fan 4-1 by the first fan drive circuit 4-3 and the second fan drive circuit 4-4 and exhaust fan 4-2 for subsequent use is all in closed condition.Simultaneously, occur detecting in real time to whether there being flame in institute monitored area by flame detector 2, and testing result synchronous driving to the first main control chip 3-1, the first main control chip 3-1 are carried out on off control by flame snuffer driving circuit 5-2 to Automatic Fire Extinguisher 5-1 according to the testing result of flame detector 2.Further, described first main control chip 3-1 can by flammable explosive gas concentration detecting unit 1 and flame detector 2 Detection Information synchronized upload extremely described remote control terminal.
During actual use, by the first display unit 9-1, simultaneous display is carried out to flammable explosive gas concentration detecting unit 1 detectable concentration value N.Further, when flammable explosive gas concentration detecting unit 1 detectable concentration value N >=N2 or flame detector 2 detect have flame to occur in institute monitored area time, first main control chip 3-1 control acousto-optic warning unit 10 carry out alarm.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520420043.5U CN204791488U (en) | 2015-06-17 | 2015-06-17 | Burning things which may cause a fire disaster is surveyed and is reported to police and datonation -inhibition device based on wireless communication module |
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| CN201520420043.5U CN204791488U (en) | 2015-06-17 | 2015-06-17 | Burning things which may cause a fire disaster is surveyed and is reported to police and datonation -inhibition device based on wireless communication module |
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| CN204791488U true CN204791488U (en) | 2015-11-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997649A (en) * | 2017-05-25 | 2017-08-01 | 欧阳培光 | A kind of network intelligence open flame detector control system and its control method |
| CN108498976A (en) * | 2017-07-21 | 2018-09-07 | 中物汽车电子扬州有限公司 | A kind of nacelle engine automatic fire extinguisher |
| CN110090375A (en) * | 2019-05-05 | 2019-08-06 | 国网湖北省电力有限公司孝感供电公司 | A kind of unattended operation transformer station battery room fireproof anti-explosion device |
-
2015
- 2015-06-17 CN CN201520420043.5U patent/CN204791488U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997649A (en) * | 2017-05-25 | 2017-08-01 | 欧阳培光 | A kind of network intelligence open flame detector control system and its control method |
| CN108498976A (en) * | 2017-07-21 | 2018-09-07 | 中物汽车电子扬州有限公司 | A kind of nacelle engine automatic fire extinguisher |
| CN110090375A (en) * | 2019-05-05 | 2019-08-06 | 国网湖北省电力有限公司孝感供电公司 | A kind of unattended operation transformer station battery room fireproof anti-explosion device |
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Granted publication date: 20151118 Termination date: 20170617 |