CN212433912U - Intelligent fire early warning device - Google Patents
Intelligent fire early warning device Download PDFInfo
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- CN212433912U CN212433912U CN202021014667.4U CN202021014667U CN212433912U CN 212433912 U CN212433912 U CN 212433912U CN 202021014667 U CN202021014667 U CN 202021014667U CN 212433912 U CN212433912 U CN 212433912U
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Abstract
The utility model provides an intelligent fire early warning device, which comprises a plurality of fire detection and judgment units, a fire extinguishing device and a plurality of alarm devices; the fire detection judging unit comprises a temperature detector, a smoke detector, a thermal radiation detector and a fire judging device, wherein the output end of the temperature detector, the output end of the smoke detector and the output end of the thermal radiation detector are connected with the input end of the fire judging device; the fire disaster detection device is characterized by further comprising a main power-on switch and a plurality of branch valve switches, wherein the output ends of the plurality of branch fire disaster judgment units are electrically connected with the main power-on switch, the main power-on switch is further connected between an external power supply and the fire extinguishing device in series, the output end of each fire disaster judgment device is electrically connected with one branch valve switch, and each branch valve switch is connected between the external power supply and the normally-closed electromagnetic valve in series. The utility model has the advantages of carry out real-time detection, improve the security in storing storehouse to the conflagration.
Description
Technical Field
The utility model relates to a fire monitoring facilities technical field, concretely relates to intelligent fire early warning device.
Background
With the continuous development of social economy and the continuous improvement of building level, various buildings all over the country are drawn out, and storage bins are arranged in each large construction site for storing various building materials.
Chinese patent with application number CN201020619839.0 discloses a multilayer stereoscopic warehouse building, by stacker, overhead reference goods shelves, goods shelves between layers, the shuttle board, the warehouse entry system constitutes, goods shelves are located each layer of warehouse inside between layers, one side of overhead reference goods shelves and each layer of warehouse inside goods shelves are connected between layers, the opposite side has stacker, be equipped with the orbit in the storage passageway between overhead reference goods shelves and the layer goods shelves, shuttle board accessible stacker carries out the nimble transposition to each row goods level of overhead reference goods shelves, drive in the goods shelves orbit between layers of warehouse inside each layer, the operation stroke of stacker runs through whole overhead reference goods shelves to with warehouse entry system connection.
When the multi-layer type stereoscopic warehouse building is used, the following defects exist: above-mentioned warehouse does not install fire detection device, can only carry out fire monitoring work through the manual work, and if the mode of placing manual fire extinguisher prevents the conflagration, the real-time rate of fire monitoring is lower, the security is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the shortcoming among the prior art, provide an intelligent conflagration early warning device, have the advantage that carries out real-time detection, improves the security in storing storehouse to the conflagration.
The purpose of the utility model is realized through the following technical scheme: an intelligent fire early warning device comprises a plurality of fire detection and judgment units, a fire extinguishing device and a plurality of alarm devices, wherein the number of the fire detection and judgment units is the same as that of the alarm devices, the fire detection and judgment units are all arranged in a warehouse to be detected, and the output end of one fire detection and judgment unit is electrically connected with one alarm device;
the fire detection and judgment unit comprises a temperature detector, a smoke detector, a heat radiation detector and a fire judgment device, wherein the output end of the temperature detector, the output end of the smoke detector and the output end of the heat radiation detector are all connected with the input end of the fire judgment device, and the output end of the fire judgment device is electrically connected with one alarm device;
the fire extinguishing device comprises a water storage tank, a water pump, a water main and a plurality of water distribution pipes, wherein the water storage tank is arranged in a warehouse to be detected, the water pump is arranged in the water storage tank, the water outlet end of the water pump is connected with one end of the water main, one ends of the water distribution pipes are connected with the other end of the water main, the other ends of the water distribution pipes are connected with nozzles, a normally closed electromagnetic valve is arranged between each water distribution pipe and each nozzle, and one nozzle is arranged on one side of one fire detection judging unit;
still include total circular telegram switch and a plurality of branch valve switch, the quantity of branch valve switch with the quantity of conflagration detection judgement unit is the same, the output of a plurality of conflagration judgement devices all with total circular telegram switch electric connection, a plurality of conflagration judgement devices are used for control total circular telegram switch disconnection and closure, total circular telegram switch still establishes ties between external power supply and water pump, every the output and one of conflagration judgement device branch valve switch electric connection, conflagration judgement device is used for control branch valve switch disconnection and closure, every branch valve switch establishes ties at external power supply and one between the type solenoid valve that normally closes.
The beneficial effects of the utility model are that, a plurality of conflagration detection judge the unit and install respectively in the environmental aspect that waits to detect the different positions in warehouse, and the environmental aspect in waiting to detect the warehouse is all used for detecting to the thermodetector, the smoke detector and the thermal radiation detector of conflagration detection judge that the ware is used for receiving thermodetector, smoke detector and the thermal radiation detector detects and wait to detect the environmental aspect in the warehouse and judge and wait to detect whether the conflagration breaks out in the warehouse. If yes, the main power-on switch is in a closed state, the water pump is powered on to work, a normally-closed electromagnetic valve between a corresponding water distribution pipe and a nozzle is controlled to be in an open state by a corresponding branch valve switch of the fire detection and judgment unit, water spraying and fire extinguishing work is carried out, and the alarm device corresponding to the fire detection and judgment unit carries out alarm work, so that the effects of detecting fire in real time and improving the safety of the storage bin are achieved.
Further, the temperature detector includes a temperature sensor and a first voltage comparator U1, an output terminal of the temperature sensor is electrically connected to a non-inverting terminal of the first voltage comparator U1, an inverting terminal of the first voltage comparator U1 is connected to a first reference voltage Vref1, and an output terminal of the first voltage comparator U1 is electrically connected to an input terminal of one of the fire determination devices.
The beneficial effect of adopting the above further scheme is that the temperature sensor detects the temperature information of the warehouse to be detected, and the voltage signal output by the temperature sensor increases along with the rise of the temperature, when the temperature of the warehouse to be detected is higher than the maximum temperature threshold, the signal input by the non-inverting terminal of the first voltage comparator U1 is greater than the first reference voltage Vref1 input by the inverting terminal of the first voltage comparator U1, and the first voltage comparator U1 outputs a high level.
Further, the smoke detector comprises a smoke sensor and a second voltage comparator U2, the output end of the smoke sensor is electrically connected with the in-phase end of the second voltage comparator U2, the inverting end of the second voltage comparator U2 is connected with a second reference voltage Vref2, and the output end of the second voltage comparator U2 is electrically connected with the input end of one of the fire judgers.
The smoke sensor is used for detecting smoke information of the warehouse to be detected, and the voltage signal output by the smoke sensor is increased along with the increase of the smoke concentration of the warehouse to be detected. When the temperature of the detection warehouse is higher than the highest smoke concentration threshold value, a signal input by the non-inverting terminal of the second voltage comparator U2 is larger than a second reference voltage Vref2 input by the inverting terminal of the second voltage comparator U2, and the second voltage comparator U2 outputs a high level.
Further, the thermal radiation detector includes pyroelectric infrared sensor, signal amplification circuit and third voltage comparator U3, pyroelectric infrared sensor's output with signal amplification circuit's input electricity is connected, signal amplification circuit's output with the input electricity of conflagration judgement ware is connected, signal amplification circuit's output with third voltage comparator U3's homophase end electricity is connected, third voltage comparator U3's inverting terminal is connected with third reference voltage Vref3, third voltage comparator U3's output and one the input electricity of conflagration judgement ware is connected.
The pyroelectric infrared sensor is used for sensing partial spectrum of fire, when fire occurs, an infrared radiation signal of a warehouse to be detected changes, the energy threshold of the warehouse to be detected is larger than the highest energy threshold, a signal input from the in-phase end of the third voltage comparator U3 is larger than a third reference voltage Vref3 input from the inverting end of the third voltage comparator U3, and the third voltage comparator U3 outputs high level.
Further, the fire determiner includes a first or gate U4 and a second or gate U5, an output terminal of the temperature detector is connected to one input terminal of the first or gate U4, an output terminal of the smoke detector is connected to the other input terminal of the first or gate U4, an output terminal of the first or gate U4 is connected to one input terminal of the second or gate U5, an output terminal of the thermal radiation detector is connected to the other input terminal of the second or gate U5, an output terminal of the second or gate U5 is electrically connected to the alarm device, an output terminal of the second or gate U5 is further electrically connected to the general power switch, the partial valve switch includes a third NPN transistor Q3, an output terminal of the second or gate U5 is connected to the base b of the third NPN transistor Q3, the transmitter e of the third NPN transistor Q3 is grounded, and a collector c of the third transistor Q3 is connected to an external power source, the normally closed solenoid valve is connected in series between an external power supply and the collector c of the third NPN transistor Q3.
When any one of the first voltage comparator U1, the second voltage comparator U2 and the third voltage comparator U3 outputs a high level, the second OR gate U5 outputs the high level to an alarm device and a general power-on switch, the third NPN triode Q3 is in a conducting state, and the normally-closed electromagnetic valve is in an opening state.
Further, the alarm device comprises a first NPN triode Q1 and a buzzer, the output end of the second or gate U5 is connected with the base b of the first NPN triode Q1, the emitter e of the first NPN triode Q1 is grounded, the collector c of the first NPN triode Q1 is connected with an external power supply, and the buzzer is connected in series between the external power supply and the collector c of the first NPN triode Q1.
The beneficial effect of adopting the above further scheme is that the second or gate U5 outputs a high level to the first NPN triode Q1, the first NPN triode Q1 is in a conducting state, and the buzzer is powered on to send out alarm information.
Further, the general power-on switch includes a plurality of second NPN triodes Q2 and a relay K, an output end of each of the fire division determination units is connected to a base b of one of the second NPN triodes Q2, an emitter e of the second NPN triode Q2 is grounded, a collector c of the second NPN triode Q2 is connected to an external power supply, a coil of the relay K is connected in series between the external power supply and the collector c of the second NPN triode Q2, the plurality of second NPN triodes Q2 are connected in parallel, and a normally open contact of the relay K is connected in series between the external power supply and the water pump.
When the second or door U5 of any fire judger outputs high level, the second NPN triode Q2 connected with the fire judger is in a conducting state, the coil of the relay K is in a conducting state, the normally open contact of the relay K acts and is changed from a disconnected state to a closed state, the water pump is electrified, and water in the water tank is pumped into the main water pipe and then into each branch water pipe.
Further, the wireless communication unit comprises a sending end and a receiving end, the output end of the second or gate U5 is connected with the input end of the sending end of the wireless communication unit, the sending end of the wireless communication unit sends the output signal of the second or gate U5 to the receiving end of the wireless communication unit, the receiving end of the wireless communication unit is electrically connected with the terminal, and the receiving end of the wireless communication unit receives the output signal of the second or gate U5 and sends the output signal to the terminal.
The beneficial effect of adopting above-mentioned further scheme is that the transmitting terminal of wireless communication unit sends the output signal of second OR gate U5 to wireless communication unit's receiving terminal, and wireless communication unit's receiving terminal is connected with the terminal electricity, and wireless communication unit's receiving terminal receives the output signal of second OR gate U5 and sends to the terminal for operating personnel can remote monitoring detect the warehouse and whether take place the conflagration.
Further, the transmitting end of the wireless communication unit includes a first CC2530 transceiver, and the receiving end of the wireless communication unit includes a second CC2530 transceiver.
The benefit of using the above further scheme is that the CC2530 transceiver is a true system on chip (SoC) solution for 2.4-GHz IEEE 802.15.4, ZigBee and RF4CE applications. It enables powerful network nodes to be built at very low overall material costs.
Furthermore, an indicator light is connected in parallel on the alarm device.
Adopt above-mentioned further scheme's beneficial effect be, when alarm device damaged, the pilot lamp is used for assisting to carry out the conflagration suggestion for operating personnel can find the conflagration emergence region fast.
Drawings
Fig. 1 is a schematic view of an intelligent fire early warning device of the present invention;
fig. 2 is a schematic circuit diagram of an intelligent fire early warning device for displaying a temperature detector according to the present invention;
fig. 3 is a schematic circuit diagram of the intelligent fire early warning device of the present invention for displaying the smoke detector;
fig. 4 is a schematic circuit diagram of an intelligent fire early warning device for showing a thermal radiation detector according to the present invention;
fig. 5 is a schematic circuit diagram of an intelligent fire early warning device for showing a fire determination device according to the present invention;
fig. 6 is a schematic circuit diagram of an intelligent fire early warning device for displaying an alarm device according to the present invention;
fig. 7 is a schematic circuit diagram of the intelligent fire early warning device of the present invention for showing the main power switch;
fig. 8 is a schematic circuit diagram of the intelligent fire early warning device of the present invention for showing the branch valve switch;
fig. 9 is a schematic circuit diagram of an intelligent fire early warning device for displaying a wireless communication unit.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
Examples
Referring to fig. 1, an intelligent fire early warning device includes four fire detection and judgment units, a fire extinguishing device and four alarm devices, wherein the four fire detection and judgment units are all installed in a warehouse to be detected, and it is worth explaining that in the present embodiment, the four fire detection and judgment units are installed at different positions in the warehouse to be detected, in another embodiment, two or more fire detection and judgment units can also be installed at the same position in the warehouse to be detected, and the position is used as a fire key occurrence area, and two or more fire detection and judgment units are used for double or multiple detections. The output end of each fire detection judgment unit is electrically connected with an alarm device.
Referring to fig. 1, the fire detection and determination unit includes a temperature detector, a smoke detector, a thermal radiation detector, and a fire determination unit, and an output terminal of the temperature detector, an output terminal of the smoke detector, and an output terminal of the thermal radiation detector are connected to an input terminal of the fire determination unit.
Referring to fig. 2, the temperature detector includes a temperature sensor and a first voltage comparator U1, an output terminal of the temperature sensor is electrically connected to a non-inverting terminal of the first voltage comparator U1, an inverting terminal of the first voltage comparator U1 is connected to a first reference voltage Vref1, and an output terminal of the first voltage comparator U1 is electrically connected to an input terminal of a fire determiner. It should be noted that in the present embodiment, the temperature sensor is a PT100 thermal resistance temperature sensor manufactured by guangzhou jiaojie precision instruments ltd.
Specifically, the temperature sensor detects temperature information of the warehouse to be detected, a voltage signal output by the temperature sensor increases along with the increase of the temperature, when the temperature of the warehouse to be detected is higher than a maximum temperature threshold, a signal input by a non-inverting terminal of the first voltage comparator U1 is greater than a first reference voltage Vref1 input by an inverting terminal of the first voltage comparator U1, and the first voltage comparator U1 outputs a high level.
Referring to fig. 3, the smoke detector includes a smoke sensor and a second voltage comparator U2, an output terminal of the smoke sensor is electrically connected to a non-inverting terminal of the second voltage comparator U2, an inverting terminal of the second voltage comparator U2 is connected to a second reference voltage Vref2, and an output terminal of the second voltage comparator U2 is electrically connected to an input terminal of a fire determiner. It should be noted that, in this embodiment, the smoke sensor is an MQ-2 sensor manufactured by shenzhen yang science and technology limited.
Specifically, the smoke sensor is used for detecting smoke information of the warehouse to be detected, and a voltage signal output by the smoke sensor is increased along with the increase of smoke concentration of the warehouse to be detected. When the temperature of the detection warehouse is higher than the highest smoke concentration threshold value, a signal input by the non-inverting terminal of the second voltage comparator U2 is larger than a second reference voltage Vref2 input by the inverting terminal of the second voltage comparator U2, and the second voltage comparator U2 outputs a high level.
Referring to fig. 4, the thermal radiation detector includes a pyroelectric infrared sensor, a signal amplification circuit and a third voltage comparator U3, an output terminal of the pyroelectric infrared sensor is electrically connected to an input terminal of the signal amplification circuit, an output terminal of the signal amplification circuit is electrically connected to an input terminal of the fire determiner, an output terminal of the signal amplification circuit is electrically connected to a non-inverting terminal of the third voltage comparator U3, an inverting terminal of the third voltage comparator U3 is connected to a third reference voltage Vref3, and an output terminal of the third voltage comparator U3 is electrically connected to an input terminal of a fire determiner. It is worth to be noted that the pyroelectric infrared sensor in this embodiment is a PIR D203S infrared sensor manufactured by shenzhen jejun core electronics ltd.
Specifically, the pyroelectric infrared sensor is used for sensing partial spectrum of fire, when fire breaks out, an infrared radiation signal of a warehouse to be detected changes, an energy threshold of the warehouse to be detected is larger than a highest energy threshold, a signal input from a non-inverting end of the third voltage comparator U3 is larger than a third reference voltage Vref3 input from an inverting end of the third voltage comparator U3, and the third voltage comparator U3 outputs high level.
Referring to fig. 5, the fire determiner includes a first or gate U4, a second or gate U5, and a third NPN transistor Q3, an output terminal of the temperature detector is connected to one input terminal of the first or gate U4, an output terminal of the smoke detector is connected to the other input terminal of the first or gate U4, an output terminal of the first or gate U4 is connected to one input terminal of the second or gate U5, an output terminal of the thermal radiation detector is connected to the other input terminal of the second or gate U5, and an output terminal of the second or gate U5 is electrically connected to an alarm device.
Referring to fig. 6, the alarm device includes a first NPN transistor Q1 and a buzzer, an output terminal of the second or gate U5 is connected to a base terminal b of the first NPN transistor Q1, an emitter terminal e of the first NPN transistor Q1 is grounded, a collector terminal c of the first NPN transistor Q1 is connected to an external power source, and the buzzer is connected in series between the external power source and the collector terminal c of the first NPN transistor Q1. It is worth to be noted that the buzzer is also connected with an indicator light in parallel. When alarm device damaged, the pilot lamp is used for supplementary conflagration suggestion of carrying out for operating personnel can find the conflagration emergence region fast.
Specifically, when any one of the first voltage comparator U1, the second voltage comparator U2 and the third voltage comparator U3 outputs a high level, the second or gate U5 outputs the high level to the first NPN triode Q1, the first NPN triode Q1 is in a conducting state, the buzzer is powered on, and alarm information is sent out, so that an operator can quickly find a fire occurrence area. Meanwhile, the indicator light is turned on when being electrified, so that an operator can quickly find a fire occurrence area.
The fire extinguishing device comprises a water storage tank, a water pump, a water main and four water distribution pipes, wherein the water storage tank is arranged in a warehouse to be detected, the water pump is arranged in the water storage tank, the water outlet end of the water pump is connected with one end of the water main, one ends of the four water distribution pipes are connected with the other end of the water main, and the other ends of the four water distribution pipes are connected with nozzles. A normally closed electromagnetic valve is arranged between the water distribution pipe and the nozzle, and one nozzle is arranged on one side of a fire detection and judgment unit.
Referring to fig. 1 and 8, the device further comprises a main power switch and four branch valve switches, wherein the output ends of the four branch fire judgment units are electrically connected with the main power switch, and the main power switch is further connected in series between the external power supply and the water pump. The output end of a fire hazard judger is electrically connected with a branch valve switch, and the branch valve switch is connected between an external power supply and a normally closed electromagnetic valve in series. The output end of the second or gate U5 is further electrically connected to the general power switch, the output end of the second or gate U5 is connected to the base b of the third NPN transistor Q3, the transmitter e of the third NPN transistor Q3 is grounded, the collector c of the third NPN transistor Q3 is connected to the external power supply, and the normally closed electromagnetic valve is connected in series between the external power supply and the collector c of the third NPN transistor Q3.
Referring to fig. 7, the general power-on switch includes four second NPN transistors Q2 and a relay K, an output terminal of each of the fire division determination units (in this embodiment, an output signal OUT21 of an output terminal of a first fire division determination unit, an output signal OUT22 of an output terminal of a second fire division determination unit, an output signal OUT23 of an output terminal of a third fire division determination unit, and an output signal OUT24.. of an output terminal of a fourth fire division determination unit, an output signal OUT2n of an output terminal of an nth fire division determination unit) is connected to a base b of a second NPN transistor Q2, an emitter e of the second NPN transistor Q2 is grounded, a collector c of the second NPN transistor Q2 is connected to an external power supply, a coil of the relay K is connected in series between the external power supply and a collector c of the second NPN transistor Q2, four second NPN transistors Q2 are connected in parallel, and a normally open contact of the relay K is connected in series between the external power supply and the water pump.
Specifically, when the second or gate U5 of any one of the fire determination devices outputs a high level, the second NPN transistor Q2 connected to the fire determination device is in a conducting state, the coil of the relay K is in a conducting state, the normally open contact of the relay K acts to change the open state into the closed state, and the water pump is powered on to pump the water in the water tank into the main water pipe. Meanwhile, a third NPN triode Q3 corresponding to a branch valve switch corresponding to the fire judger is conducted, so that the normally closed electromagnetic valve is electrified, and water in the water main flows into the water branch pipe to extinguish fire.
Referring to fig. 9, the apparatus further includes a wireless communication unit and a terminal, the wireless communication unit includes a transmitter and a receiver, an output terminal of the second or gate U5 is connected to an input terminal of the transmitter of the wireless communication unit, the transmitter of the wireless communication unit transmits the output signal of the second or gate U5 to the receiver of the wireless communication unit, the receiver of the wireless communication unit is electrically connected to the terminal, and the receiver of the wireless communication unit receives the output signal of the second or gate U5 and transmits the output signal to the terminal. It should be noted that, in this embodiment, the terminal includes a host, a tablet, a mobile phone, or the like. The transmitting end of the wireless communication unit includes a first CC2530 transceiver, and the receiving end of the wireless communication unit includes a second CC2530 transceiver, in this embodiment, the second CC2530 transceiver is manufactured by shenzhen core rhyme technologies ltd.
In particular, the CC2530 transceiver is a true system on chip (SoC) solution for 2.4-GHz IEEE 802.15.4, ZigBee, and RF4CE applications. It enables powerful network nodes to be built at very low overall material costs. The transmitting end of the wireless communication unit transmits the output signal of the second OR gate U5 to the receiving end of the wireless communication unit, the receiving end of the wireless communication unit is electrically connected with the terminal, and the receiving end of the wireless communication unit receives the output signal of the second OR gate U5 and transmits the output signal to the terminal, so that an operator can remotely monitor whether the warehouse to be detected is in fire.
The specific implementation manner of this embodiment is: the four fire detection judging units are respectively installed at the environmental conditions of different positions of the warehouse to be detected, the temperature detector, the smoke detector and the thermal radiation detector of the fire detection judging units are all used for detecting the environmental conditions in the warehouse to be detected, and the fire judger is used for receiving the environmental conditions in the warehouse to be detected, detected by the temperature detector, the smoke detector and the thermal radiation detector, and judging whether a fire disaster occurs in the warehouse to be detected. If yes, the main power-on switch is in a closed state, the water pump is powered on to work, a normally-closed electromagnetic valve between a corresponding water distribution pipe and a nozzle is controlled to be in an open state by a corresponding branch valve switch of the fire detection and judgment unit, water spraying and fire extinguishing work is carried out, and the alarm device corresponding to the fire detection and judgment unit carries out alarm work, so that the effects of detecting fire in real time and improving the safety of the storage bin are achieved. The transmitting end of the wireless communication unit transmits the output signal of the second OR gate U5 to the receiving end of the wireless communication unit, the receiving end of the wireless communication unit is electrically connected with the terminal, and the receiving end of the wireless communication unit receives the output signal of the second OR gate U5 and transmits the output signal to the terminal, so that an operator can remotely monitor whether the warehouse to be detected is in fire.
The foregoing is merely a preferred embodiment of the invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the invention as expressed in the above teachings or as known to the person skilled in the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An intelligent fire early warning device is characterized by comprising a plurality of fire detection and judgment units, a fire extinguishing device and a plurality of alarm devices, wherein the number of the fire detection and judgment units is the same as that of the alarm devices, the fire detection and judgment units are all arranged in a warehouse to be detected, and the output end of each fire detection and judgment unit is electrically connected with one alarm device;
the fire detection and judgment unit comprises a temperature detector, a smoke detector, a heat radiation detector and a fire judgment device, wherein the output end of the temperature detector, the output end of the smoke detector and the output end of the heat radiation detector are all connected with the input end of the fire judgment device, and the output end of the fire judgment device is electrically connected with one alarm device;
the fire extinguishing device comprises a water storage tank, a water pump, a water main and a plurality of water distribution pipes, wherein the water storage tank is arranged in a warehouse to be detected, the water pump is arranged in the water storage tank, the water outlet end of the water pump is connected with one end of the water main, one ends of the water distribution pipes are connected with the other end of the water main, the other ends of the water distribution pipes are connected with nozzles, a normally closed electromagnetic valve is arranged between each water distribution pipe and each nozzle, and one nozzle is arranged on one side of one fire detection judging unit;
still include total circular telegram switch and a plurality of branch valve switch, the quantity of branch valve switch with the quantity of conflagration detection judgement unit is the same, the output of a plurality of conflagration judgement devices all with total circular telegram switch electricity is connected, a plurality of conflagration judgement devices are used for control total circular telegram switch disconnection and closure, total circular telegram switch still establishes ties between external power supply and water pump, every the output and one of conflagration judgement device divide valve switch electricity to connect, conflagration judgement device is used for control divide valve disconnection and closure, every divide valve switch to establish ties at external power supply and one between the type solenoid valve of normally closing.
2. The apparatus of claim 1, wherein the temperature detector comprises a temperature sensor and a first voltage comparator U1, an output terminal of the temperature sensor is electrically connected to a non-inverting terminal of the first voltage comparator U1, an inverting terminal of the first voltage comparator U1 is connected to a first reference voltage Vref1, and an output terminal of the first voltage comparator U1 is electrically connected to an input terminal of one of the fire judgers.
3. The apparatus of claim 1, wherein the smoke detector comprises a smoke sensor and a second voltage comparator U2, wherein an output terminal of the smoke sensor is electrically connected to a non-inverting terminal of the second voltage comparator U2, an inverting terminal of the second voltage comparator U2 is connected to a second reference voltage Vref2, and an output terminal of the second voltage comparator U2 is electrically connected to an input terminal of one of the fire judgers.
4. The apparatus of claim 1, wherein the thermal radiation detector comprises a pyroelectric infrared sensor, a signal amplification circuit and a third voltage comparator U3, an output terminal of the pyroelectric infrared sensor is electrically connected with an input terminal of the signal amplification circuit, an output terminal of the signal amplification circuit is electrically connected with an input terminal of the fire determiner, an output terminal of the signal amplification circuit is electrically connected with a non-inverting terminal of the third voltage comparator U3, an inverting terminal of the third voltage comparator U3 is connected with a third reference voltage Vref3, and an output terminal of the third voltage comparator U3 is electrically connected with an input terminal of one of the fire determiner.
5. The apparatus as claimed in any one of claims 1 to 4, wherein the fire determination device comprises a first or gate U4 and a second or gate U5, an output of the temperature detector is connected to an input of the first or gate U4, an output of the smoke detector is connected to another input of the first or gate U4, an output of the first or gate U4 is connected to an input of the second or gate U5, an output of the thermal radiation detector is connected to another input of the second or gate U5, an output of the second or gate U5 is electrically connected to the alarm device, an output of the second or gate U5 is further electrically connected to the main energizing switch, the partial valve switch comprises a third NPN transistor Q3, an output of the second or gate U5 is connected to a base b of the third NPN transistor Q3, and a transmitter e of the third NPN transistor Q3 is grounded, the collector c of the third NPN transistor Q3 is connected to an external power source, and the normally closed solenoid valve is connected in series between the external power source and the collector c of the third NPN transistor Q3.
6. The apparatus as claimed in claim 5, wherein the alarm device comprises a first NPN transistor Q1 and a buzzer, the output terminal of the second OR gate U5 is connected to the base terminal b of the first NPN transistor Q1, the emitter terminal e of the first NPN transistor Q1 is grounded, the collector terminal c of the first NPN transistor Q1 is connected to an external power source, and the buzzer is connected in series between the external power source and the collector terminal c of the first NPN transistor Q1.
7. The apparatus of claim 5, wherein the total power-on switch comprises a plurality of second NPN transistors Q2 and a relay K, an output terminal of the second OR gate U5 is connected with a base terminal b of one of the second NPN transistors Q2, an emitter terminal e of the second NPN transistor Q2 is grounded, a collector terminal c of the second NPN transistor Q2 is connected with an external power supply, a coil of the relay K is connected in series between the external power supply and the collector terminal c of the second NPN transistor Q2, a plurality of the second NPN transistors Q2 are connected in parallel, and a normally open contact of the relay K is connected in series between the external power supply and the water pump.
8. The apparatus of claim 5, further comprising a wireless communication unit and a terminal, wherein the wireless communication unit comprises a transmitter and a receiver, the output terminal of the second or gate U5 is connected to the input terminal of the transmitter of the wireless communication unit, the transmitter of the wireless communication unit transmits the output signal of the second or gate U5 to the receiver of the wireless communication unit, the receiver of the wireless communication unit is electrically connected to the terminal, and the receiver of the wireless communication unit receives the output signal of the second or gate U5 and transmits the output signal to the terminal.
9. The apparatus of claim 8, wherein a transmitting end of the wireless communication unit comprises a first CC2530 transceiver and a receiving end of the wireless communication unit comprises a second CC2530 transceiver.
10. The device according to any one of claims 1 to 4, wherein an indicator light is connected in parallel to the alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021014667.4U CN212433912U (en) | 2020-06-05 | 2020-06-05 | Intelligent fire early warning device |
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| CN116294325A (en) * | 2021-12-20 | 2023-06-23 | 珠海格力电器股份有限公司 | Control method and device of condensing unit and condensing unit |
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| CN116294325A (en) * | 2021-12-20 | 2023-06-23 | 珠海格力电器股份有限公司 | Control method and device of condensing unit and condensing unit |
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