CN202715165U - Intelligent smoke differential temperature fire extinguishing sensor - Google Patents

Abstract

The utility model discloses an intelligent smoke differential temperature fire extinguishing sensor which can automatically spray and extinguish a fire disaster when the fire disaster occurs based on parameters of smoke and differential temperature. A heater strip added on a spray head glass tube can be started only when the smoke and the differential temperature are generated simultaneously so as to expand liquid in the glass tube to explode and achieve an aim of extinguishing the fire automatically. However, when only the smoke occurs or only the temperature surpasses a set point, the spray system gives out encoded electromagnetic waves without being started. When the fire is caught, electromagnetic waves with different encoding are given out. And by means of the differential temperature, namely difference between normal temperature and rapid rise of the temperature, the fire can be nipped in the bud. One intelligent smoke differential temperature sensor can drive four fire sprinklers so as to maintain characters of the prior smoke sensor.

Description

Intelligent smog differential temperature fire extinguishing sensor

Technical field

The utility model relates to a kind of intelligent smog differential temperature fire extinguishing sensor.

Background technology

Present fire-fighting spraying is when breaking out of fire, it is traditional fire extinguishing applicator, when temperature reaches the quick-fried broken water spray of 68 shower nozzle glass tubes when spending, this shower nozzle is disposable use, and fire has gone out but shower nozzle also continues spray when catching fire, be sprayed onto always penstock is closed, " intelligent smog differential temperature fire extinguishing sensor " is to drive magnetic valve to open the water source, when the fire cigarette closed electromagnetic valve that disappeared that gone out, can Reusability, this " intelligent smog differential temperature fire extinguishing sensor " can drive at most 4, minimum use amount can 1, such as family, and can be used as fire alarm and use, the equipment that does not also have at present fire alarm, the quick-fried broken temperature of applicator temperature is 68 degree of fixing in addition, in different areas, different seasons, different setting height(from bottom)s, different ventilation conditions, the result is just different for this 68 degree, " intelligent smog differential temperature fire extinguishing sensor " feature: the 1st, it is to have smog to have these two conditions of differential temperature (differential temperature is the difference that two temperature sensors produce) all to meet the smokescope that sets in advance and reach certain numerical value when catching fire, the differential temperature value reaches the microprocessor setting value, and (this difference can be set when microprocessor is write a program) drive circuit is exported a voltage, and this voltage adds to magnetic valve and opens the valve water spray, the 2nd, " intelligent smog differential temperature fire extinguishing sensor " analyzed into the type coding the information that produces,, smog is different coding from catching fire, the 3rd, keeping the feature of original Smoke Sensor address.

Summary of the invention

The utility model " intelligent smog differential temperature fire extinguishing sensor " has overcome the weak point of original Smoke Sensor, Fig. 1 is utility model circuit structure block diagram, this figure provides a kind of intelligent smog differential temperature fire extinguishing sensor, and it is characterized in that: smog alarm circuit IC1 exports two-way: one road signal of telecommunication enters the smokescope analysis circuit; The signal of smokescope analysis circuit output enters logic circuit 1, and logic circuit 1 has two tunnel outputs; One the tunnel exports to coding circuit, export drive circuit to after another road and logic circuit 2 are compound, drive circuit output can be given 4 magnetic valves, temperature sensor 1 exports microcontroller circuit to, temperature sensor 2, also enter microcontroller circuit, microcontroller circuit exports logic circuit 2 to, logic circuit 2 outputs two road signals; One the road to coding circuit, and another road and logical one are compound, and coding circuit outputs to wireless launcher, and smog alarm circuit IC1 exports another road to the circuit of networking.

Need the technical scheme of first technical problem of solution to be: short fine smog might be to smoke to form, so smog produces the signal of telecommunication time in smog sensor circuit short, and the smokescope of catching fire is high and the time that be detained in smog sensor circuit is long, thereby the generation signal of telecommunication time is long, only have smog shrouding for a long time Smoke Sensor according to these characteristics, it is just long that smog sensor circuit produces the signal of telecommunication time, therefore utilizing the length of smog time to determine whether catches fire, need the technical scheme of second technical problem of solution to be: the signal of telecommunication that only has smog sensor circuit to produce is not necessarily to catch fire, in circuit, increased like this a microcontroller circuit, two temperature pass device device 1 and enter microprocessor with 2 information and carry out the differential temperature comparison, two temperature biography device devices 1 are consistent with 2 information that are input to little processing during normal temperature, the anxious fusion of temperature when catching fire, one of them is slow in reacting, the information that such two temperature sensor devices are input to microprocessor produces difference, microprocessor can be set the poor output information that how much is worth of needs according to this difference

Because having smog differential temperature comprehensive parameters just can drive magnetic valve when fire just occurs, " intelligent smog differential temperature fire extinguishing sensor " open the water source water spray, but how many write-in programs of differential temperature value, so owing to adopted microprocessor differential temperature circuit just more to show advantage for the lower area of temperature, having broken away from original Smoke Sensor can only smog alarm, when do not have personnel the time smog alarm be exactly ornaments, " intelligent smog differential temperature fire extinguishing sensor " be smog alarm not only, also can report a fire when catching fire, also keep the raw address alarm feature

Description of drawings

Below in conjunction with drawings and Examples the utility model is advanced an explanation

Fig. 1 is circuit theory diagrams of the present utility model.

Fig. 2 specific embodiment

A among Fig. 2, B connects bus, and t1, t2 are respectively the temperature sensor devices, IC1, IC2, IC3, IC4, IC5 is respectively integrated circuit, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q9 is respectively triode, D1, D2 is respectively diode, LED1, LED2, LED3 are luminous tubes, and J is relay, and D is magnetic valve

The specific embodiment: IC1 is the smog integrated circuit, the 7th pin of IC1 output high level when smog is arranged, export triode Q1 to, the triode conducting is so that IC2, IC3 work, IC2 is impulse generator, lack in this way fine smog, the Q1 ON time is short, the pulse that IC2 just produces is few, the pulse of IC2 integrated circuit output is few, output to the not output of IC3 integrated circuit 4 pin, diode D2, D3 is the logic circuit 1 in Fig. 1 circuit structure, diode D1 is the logic circuit 2 in the circuit structure, and the anode of D2 and D1 all is high level when catching fire, by resistance R 8, R9 enters IC5 and encodes, behind IC5 coding, exported to by Q8 by 17 pin of IC5 again, the oscillating circuit that Q9 forms, the radio magnetic wave of generation is launched, IC4 is microprocessor, t1, t2 are respectively the temperature sensor devices, and numerical value is one and causes during this two temperature sensor device normal temperature, these two warming devices need only have one blunt to thermotonus, the numerical value that two temperature sensors are input to the IC4 microprocessor simultaneously when catching fire is just inconsistent, and poor how many values of this difference can be write in program, and the 3rd pin output of the anxious poly-rising IC4 of temperature transfers low level to the base stage of Q7 when catching fire like this, the emitter stage of Q3 connects the base stage of Q4, magnetic valve is opened in the Q4 conducting, and the base stage of Q6 connects the colelctor electrode of Q7, and the colelctor electrode of Q6 meets R10, R11, resistance R 10, R11 connects the coding integrated circuit, and output is another coding when catching fire like this, one " intelligent smog differential temperature fire extinguishing sensor " can drive 4 magnetic valves, and relay J is networked.

Claims (1)

1. one kind is used for intelligent smog differential temperature fire extinguishing sensor, and it is characterized in that: smog alarm circuit IC1 exports two-way: one road signal of telecommunication enters the smokescope analysis circuit; The signal of smokescope analysis circuit output enters logic circuit 1, and logic circuit 1 has two tunnel outputs; One the tunnel exports to coding circuit, export drive circuit to after another road and logic circuit 2 are compound, drive circuit is exported to 4 magnetic valves, temperature sensor 1 exports microcontroller circuit to, temperature sensor 2, also enter microcontroller circuit, microcontroller circuit is to logic circuit 2, and logic circuit 2 is exported two road signals; One the road to coding circuit, and another road and logical one are compound, and coding circuit outputs to wireless launcher, and smog alarm circuit IC1 exports another road to the circuit of networking.

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