CN112185232A - Fire extinguishing bottle simulation device and method - Google Patents
Fire extinguishing bottle simulation device and method Download PDFInfo
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- CN112185232A CN112185232A CN202011069495.5A CN202011069495A CN112185232A CN 112185232 A CN112185232 A CN 112185232A CN 202011069495 A CN202011069495 A CN 202011069495A CN 112185232 A CN112185232 A CN 112185232A
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Abstract
The invention relates to a fire-extinguishing bottle simulator and a fire-extinguishing bottle simulation method, belongs to the technical field of fire-extinguishing explosion suppression, and solves the problems that the simulation degree of the existing fire-extinguishing bottle simulator is low, the explosion process of an electric explosion tube of a fire-extinguishing bottle cannot be truly reflected, and the pressure switch of the fire-extinguishing bottle and the pressure switch of a pipeline are disconnected. The fire-extinguishing bottle simulation device comprises: the electric explosion tube driving signal acquisition circuit is used for simulating a circuit for starting the electric explosion tube of the fire extinguishing bottle according to the starting time of the electric explosion tube when the fire extinguishing suppression system gives a fire alarm; the fire extinguishing bottle pressure switch circuit is used for simulating a circuit of the fire extinguishing bottle pressure switch for disconnection at a first preset time after the electric detonator is started, wherein the first preset time is the bottle spraying time of the fire extinguishing bottle; and the pipeline pressure switch circuit is used for simulating a circuit of the pipeline pressure switch after the fire extinguisher bottle pressure switch is switched off at a second preset time, wherein the second preset time is the spraying time of residues in the pipeline of the fire extinguisher bottle. The simulation degree of the fire extinguishing bottle simulation device is improved.
Description
Technical Field
The invention relates to the technical field of fire extinguishing and explosion suppression, in particular to a fire extinguishing bottle simulation device and method.
Background
With the improvement of safety requirements of modern equipment vehicles, fire extinguishing and explosion suppression systems are generally designed, and the fire extinguishing and explosion suppression systems are used for monitoring and extinguishing fires in a power cabin, a bottom cabin and a passenger cabin of the vehicles and suppressing explosion in the passenger cabin, reducing vehicle loss and protecting safety of passengers. The fire extinguishing and explosion suppression system needs to perform function detection regularly according to the use and maintenance requirements so as to ensure the protection safety of vehicles. At the moment, each sensor and the fire extinguishing bottle in the fire extinguishing and explosion suppression system are connected with the fire extinguishing and explosion suppression control box, the fire extinguishing bottle is a loss part, once a fire alarm is simulated, the fire extinguishing bottle is detonated, equipment loss and vehicle environment pollution are caused, and therefore the simulated fire extinguishing bottle is required to replace a real bottle, and the test of the fire extinguishing and explosion suppression system of the vehicle is realized. However, the conventional simulated fire extinguishing bottle is simple in function, after receiving a fire extinguishing explosion suppression system spray bottle signal, a feedback signal is output in a fixed time, the influence of the external voltage on the starting time of the electric detonator is ignored, the processes of starting the electric detonator, disconnecting the pressure switch of the fire extinguishing bottle and disconnecting the pipeline pressure switch cannot be truly simulated, the conventional simulated fire extinguishing bottle needs an external power supply to supply power or adopts a dry battery and a lithium battery to supply power, and liquid leakage after the dry battery is stored for a long time or the lithium battery cannot be used due to the severe damage of the storage environment and the like can occur.
A fire-extinguishing bottle simulator for engineering vehicle fire-extinguishing control system detection includes power supply circuit, display circuit, input circuit and output circuit. The input circuit collects the output signal of the fire extinguishing control box, and the output circuit feeds back the output signal to the fire extinguishing control box collecting circuit to complete the simulation of the spray bottle. The fire-extinguishing bottle simulator has low simulation degree, cannot truly reflect the processes of 1211 fire-extinguishing bottle and 1301 electric explosion tube explosion starting of the fire-extinguishing bottle, and the pressure of the fire-extinguishing bottle and the pressure switch of a fire-extinguishing pipeline are disconnected, and different spray bottle strategies can be adopted by the fire-extinguishing explosion suppression system for the fault conditions that the electric explosion tube possibly exists in the fire-extinguishing bottle, the pressure switch is not disconnected within the specified time and the like, so that the function of the fire-extinguishing explosion suppression system cannot be completely tested by the fire-extinguishing bottle simulator.
Disclosure of Invention
In view of the above analysis, the present invention provides a fire-extinguishing bottle simulator and a method thereof, so as to solve the problems that the simulation degree of the existing fire-extinguishing bottle simulator is low, the explosion process of the electric squibs of the 1211 fire-extinguishing bottle and 1301 fire-extinguishing bottle cannot be truly reflected, and the functions of the fire-extinguishing explosion suppression system cannot be completely tested due to the disconnection of the pressure switch of the fire-extinguishing bottle and the pressure switch of the fire-extinguishing pipeline.
In one aspect, an embodiment of the present invention provides a fire extinguisher bottle simulation apparatus, including: the electric explosion tube driving signal acquisition circuit is used for simulating a circuit for starting the electric explosion tube of the fire extinguishing bottle according to the starting time of the electric explosion tube when the fire extinguishing suppression system gives a fire alarm; the fire extinguishing bottle pressure switch circuit is used for simulating a circuit of the fire extinguishing bottle pressure switch for disconnection at a first preset time after the electric detonator is started, wherein the first preset time is the bottle spraying time of the fire extinguishing bottle; and the pipeline pressure switch circuit is used for simulating a circuit of the pipeline pressure switch after the fire extinguishing bottle pressure switch is switched off at a second preset time, wherein the second preset time is the spraying time of residues in the pipeline of the fire extinguishing bottle.
The beneficial effects of the above technical scheme are as follows: the fire-extinguishing bottle simulator has high simulation degree, can truly reflect the explosion starting process of the electric explosion tube of the fire-extinguishing bottle, and can completely test the functions of the fire-extinguishing explosion suppression system by switching off the pressure of the fire-extinguishing bottle and the pressure switch of the fire-extinguishing pipeline.
Based on the further improvement of the device, the fire extinguisher bottle simulation device further comprises a microcontroller for: receiving an electric detonator driving voltage from the electric detonator driving signal acquisition circuit; calculating the starting time of the electric detonator according to the electric detonator driving voltage; and after the starting time, providing an electric detonator starting signal to the electric detonator driving signal acquisition circuit to simulate starting of the electric detonator.
Based on the further improvement of the device, the starting time of the electric detonator is calculated by the following formula: Δ Q is U2/R T, where Δ Q is the energy required to disconnect the squib, U is the squib drive voltage value, R is the squib resistance value, and T is the start-up time of the squib.
The beneficial effects of the above technical scheme are as follows: the starting time of the electric shock tube of the fire extinguishing bottle can be accurately simulated through a software algorithm according to the received different driving voltages of the fire extinguishing bottle.
Based on further improvement of the device, the electric detonator driving signal acquisition circuit comprises a voltage divider, an electric detonator resistor and a first power tube switch, wherein the voltage divider is used for dividing the electric detonator driving voltage so as to acquire partial voltage in the electric detonator driving voltage through the microcontroller; the electric detonator resistor is used for simulating the resistance of the electric detonator; and the first power tube switch is used for switching on or switching off according to the starting time of the electric explosion tube and the bottle spraying time of the fire extinguishing bottle.
Based on the further improvement of the above device, the voltage divider includes a third resistor and a fourth resistor, and the squib driving signal collecting circuit further includes: a second resistor, a zener diode, a fifth resistor, and a first capacitor, wherein a first end of the squib resistor is connected to the DB terminal, a second end of the squib resistor is connected to pin 3 of the first power tube switch, pin 1 of the first power tube switch is connected to a first I/O terminal of the microcontroller via the second resistor, and pin 2 of the first power tube switch is grounded; a first end of the third resistor is connected to the DB terminal, a second end of the third resistor is connected in series to a first end of the fourth resistor, and a second end of the fourth resistor is grounded; the zener diode is connected in parallel with the fourth resistor; a first end of the fifth resistor is connected to a cathode of the zener diode, a second end of the third resistor, and a first end of the fourth resistor, and a second end of the fifth resistor is connected to a second I/O terminal of the microcontroller; and the first capacitor is connected between the second end of the fifth resistor and a ground terminal.
Based on a further improvement of the above device, the fire extinguisher bottle pressure switch circuit comprises a sixth resistor, a seventh resistor, a second power tube switch, a third power tube switch and a second capacitor, wherein the positive terminal of the second capacitor is connected to the output terminal YL; pin 3 of the second power tube switch is connected to the output terminal YL, pin 1 of the second power tube switch is connected to a third I/O terminal of the microcontroller via the sixth resistor, and pin 2 of the second power tube switch is grounded; and pin 3 of the third power tube switch is connected to the negative electrode of the second capacitor, pin 1 of the third power tube switch is connected to a fourth I/O terminal of the microcontroller via a seventh resistor, and pin 1 of the third power tube switch is grounded, wherein the microcontroller provides a pressure switch switching signal via the fourth I/O terminal to switch between 1211 and 1301 fire bottles.
Based on a further improvement of the above apparatus, the line pressure switch circuit comprises a fourth power tube switch and a first resistor, wherein pin 3 of the fourth power tube switch is connected to the output signal of the line pressure switch, pin 1 of the fourth power tube switch is connected to the fifth I/O terminal of the microcontroller via the first resistor, and pin 2 of the fourth power tube switch is grounded.
Based on the further improvement of the device, 3 super capacitors are used as power supplies for supplying power to the fire extinguishing bottle, and the capacity of each super capacitor is 13.5V/1.6F.
The beneficial effects of the above technical scheme are as follows: the super capacitor is adopted for power supply, so that the problems that the conventional simulated fire extinguishing bottle is powered by a dry battery, the battery needs to be replaced, and the product is damaged due to leakage of the battery during long-term storage can be solved; or the lithium battery supplies power, the charging is slow, the service life of the lithium battery is short under the severe storage condition, and the like.
Based on further improvement of the device, the fire extinguishing bottle comprises a 1211 fire extinguishing bottle and a 1301 fire extinguishing bottle, and the electric detonator driving signal acquisition circuit comprises a first electric detonator driving signal acquisition circuit and a second electric detonator driving signal acquisition circuit which are identical, wherein the first electric detonator driving signal acquisition circuit and the second electric detonator driving signal acquisition circuit are used for simulating the 1211 fire extinguishing bottle; and the first electric detonator driving signal acquisition circuit is configured to simulate the 1301 fire suppression bottle.
The beneficial effects of the above technical scheme are as follows: the working characteristics of 1211 fire extinguishing bottles and 1301 fire extinguishing bottles can be simulated really, and the explosion of the electric detonator is simulated.
In another aspect, an embodiment of the present invention provides a fire extinguisher bottle simulation method, including: when the fire extinguishing suppression system gives a fire alarm, simulating a circuit for starting the electric shock tube of the fire extinguishing bottle according to the starting time of the electric shock tube; simulating a circuit of a pressure switch of a fire extinguishing bottle to be switched off at a first preset time after the electric detonator is started, wherein the first preset time is the bottle spraying time of the fire extinguishing bottle; and simulating a circuit of the pipeline pressure switch to be switched off at a second preset time after the fire-extinguishing bottle pressure switch is switched off, wherein the second preset time is the spraying time of residues in the pipeline of the fire-extinguishing bottle.
Compared with the prior art, the invention can realize at least one of the following beneficial effects:
1. the fire-extinguishing bottle simulation device has high simulation degree, can truly reflect the explosion starting process of the electric explosion tube of the fire-extinguishing bottle, and can completely test the functions of the fire-extinguishing explosion suppression system when the pressure of the fire-extinguishing bottle and the pressure switch of the fire-extinguishing pipeline are disconnected;
2. the starting time of the electric shock tube of the fire extinguishing bottle can be accurately simulated through a software algorithm according to the received different driving voltages of the fire extinguishing bottle;
3. a fire bottle pressure switch is added to simulate the disconnection process of 1211 fire bottle pressure switches and 1301 fire bottle pressure switches, and the input of a pipeline pressure switch is added to realize the function detection of a fire extinguishing system with the pipeline pressure switch; and
4. the super capacitor is adopted for power supply, so that the problems that the conventional simulated fire extinguishing bottle adopts a dry battery for power supply, the battery needs to be replaced, and the product is damaged due to leakage of the battery during long-term storage are solved; or the lithium battery supplies power, the charging is slow, the service life of the lithium battery is short under the severe storage condition, and the like.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
Fig. 1 is a block diagram of a fire-suppression bottle simulation apparatus according to an embodiment of the present invention.
Fig. 2 is a circuit diagram of an electrical squib driving signal acquisition circuit according to an embodiment of the present invention.
Fig. 3 is a circuit diagram of a fire extinguisher cylinder pressure switch according to an embodiment of the present invention.
Fig. 4 is a circuit diagram of a line pressure switch according to an embodiment of the present invention.
Fig. 5 is a diagram of a simulated fire suppression bottle operating panel according to an embodiment of the present invention.
Fig. 6 is a flow chart of a fire suppression bottle simulation method according to an embodiment of the present invention.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
The invention discloses a fire-extinguishing bottle simulation device. Referring to fig. 1, the fire-extinguishing bottle simulation apparatus includes: the electric detonator driving signal acquisition circuit 102 is used for simulating a circuit for starting the electric detonator of the fire extinguishing bottle according to the starting time of the electric detonator when the fire extinguishing suppression system gives a fire alarm; the fire extinguishing bottle pressure switch circuit 104 is used for simulating a circuit of the fire extinguishing bottle pressure switch for disconnection at a first preset time after the electric detonator is started, wherein the first preset time is the bottle spraying time of the fire extinguishing bottle; and a line pressure switch circuit 106 for simulating a circuit in which the line pressure switch is turned off at a second preset time after the fire bottle pressure switch is turned off, wherein the second preset time is a spraying time of residue in the line of the fire bottle.
Compared with the prior art, the fire-extinguishing bottle simulator that this embodiment provided is high in fidelity, the process that the electric explosion tube of reflection fire-extinguishing bottle that can be true was opened and explodes to and the disconnection of fire-extinguishing bottle pressure, pipeline pressure switch of putting out a fire, and then can test out the function of the explosion suppression system of putting out a fire completely.
Hereinafter, the fire-extinguishing bottle simulating apparatus will be described in detail with reference to fig. 1 to 4. The fire-extinguishing bottle simulation device comprises an electric detonator driving signal acquisition circuit 102, a fire-extinguishing bottle pressure switch circuit 104 and a pipeline pressure switch circuit 106.
Referring to fig. 1, the squib driving signal collecting circuit 102 is used to simulate a circuit for starting the squib of the fire extinguisher bottle according to the start time of the squib when the fire suppression system gives a fire alarm. For example, the squib start-up time may be 3ms to 6ms, preferably 3 ms. The fire extinguishing bottle comprises a 1211 fire extinguishing bottle and a 1301 fire extinguishing bottle, and the electric detonator driving signal acquisition circuit comprises a first electric detonator driving signal acquisition circuit and a second electric detonator driving signal acquisition circuit which are the same, wherein the first electric detonator driving signal acquisition circuit and the second electric detonator driving signal acquisition circuit are used for simulating the 1211 fire extinguishing bottle; and the first electrical squib drive signal acquisition circuit is configured for simulating 1301 the fire suppression bottle. The squib drive signal acquisition circuit 102 may be a first squib drive signal acquisition circuit and a second squib drive signal acquisition circuit. The electric detonator driving signal acquisition circuit 102 comprises a voltage divider, an electric detonator resistor and a first power tube switch, wherein the voltage divider is used for dividing the electric detonator driving voltage so as to acquire partial voltage in the electric detonator driving voltage through a microcontroller; the electric detonator resistor is used for simulating the resistance of the electric detonator; and the first power tube switch is used for switching on or switching off the first power tube switch according to the starting time of the electric explosion tube and the bottle spraying time of the fire extinguishing bottle.
Referring to fig. 2, the squib drive signal acquisition circuit 102 includes: the squib driving circuit comprises an squib resistor RK1 or RK2, a first power tube switch U4 or U3, a second resistor RC2 or RC3, a third resistor RC5 or RC6, a fourth resistor RC9 or RC10, a zener diode DZ3 or DZ4, a fifth resistor RC7 or RC8 and a first capacitor C15 or C14, wherein a first end of the squib resistor is connected to a DB terminal, for example, the DB terminal is a DBA terminal when the squib driving signal acquisition circuit 102 is a first squib driving signal acquisition circuit and the DB terminal is a DBB terminal when the squib driving signal acquisition circuit 102 is a second squib driving signal acquisition circuit. A second terminal of the squib resistor RK1 or RK2 is connected to pin 3 of the first power tube switch, pin 1 of the first power tube switch is connected to a first I/O terminal of the microcontroller via a second resistor, and pin 2 of the first power tube switch is connected to ground. For example, the first I/O terminal is a PB2 terminal when the squib drive signal acquisition circuit 102 is the first squib drive signal acquisition circuit, and the first I/O terminal is a PB1 terminal when the squib drive signal acquisition circuit 102 is the second squib drive signal acquisition circuit. An electrical squib activation signal "1" is provided via the first I/O terminal, causing pins 2 and 3 of the power tube switch to turn on to activate the electrical squib, i.e., to activate the fire extinguisher bottle. An electrical squib start signal "0" is provided causing pin 2 and pin 3 of the power tube switch to open. A first end of the third resistor is connected to the DB terminal, a second end of the third resistor is connected in series to a first end of the fourth resistor, and a second end of the fourth resistor is grounded. The voltage stabilizing diode is connected with the fourth resistor in parallel to stabilize partial voltage in the collected electric explosion tube driving voltage. A first end of a fifth resistor is connected to the cathode of the zener diode, the second end of the third resistor, and the first end of the fourth resistor, and a second end of the fifth resistor is connected to the second I/O terminal of the microcontroller, the fifth resistor being a current limiting resistor. For example, the second I/O terminal is a PA5 terminal when the squib drive signal acquisition circuit 102 is the first squib drive signal acquisition circuit, and the second I/O terminal is a PA3 terminal when the squib drive signal acquisition circuit 102 is the second squib drive signal acquisition circuit. And a second I/O terminal of the microcontroller collects partial voltage in the electric detonator driving voltage. A first capacitor C14 or C15, which is a filter capacitor, is connected between the second terminal of the fifth resistor and ground.
The fire-extinguishing bottle pressure switch circuit 104 is used for simulating a circuit of the fire-extinguishing bottle pressure switch for disconnection at a first preset time after the electric detonator is started, wherein the first preset time is the bottle spraying time of the fire-extinguishing bottle. For example, the first preset time is 6.5s when the fire bottle is 1211, and 65ms when the fire bottle is 1301. The fire bottle pressure switch circuit 104 includes a sixth resistor RC1, a seventh resistor RC16, a second power tube switch U2, a third power tube switch U3, and a second capacitor CC1, wherein the positive terminal of the second capacitor is connected to the output terminal YL; pin 3 of the second power tube switch is connected to the output terminal YL, and pin 1 of the second power tube switch is connected to the third I/O terminal PB0 of the microcontroller via a sixth resistor, for example, pin 2 and pin 3 of the second power tube switch U2 are on when the third I/O terminal PB0 provides the pressure switch signal "1", and pin 2 and pin 3 of the second power tube switch U are off when the third I/O terminal PB0 provides the pressure switch signal "0". Pin 2 of the second power tube switch is grounded; and pin 3 of the third power tube switch is connected to the negative pole of the second capacitor, pin 1 of the third power tube switch is connected via a seventh resistor to a fourth I/O terminal PB7 of the microcontroller, and pin 1 of the third power tube switch is grounded, wherein the microcontroller provides a pressure switch switching signal via the fourth I/O terminal to switch between the fire bottle 1211 and the fire bottle 1301. For example, when the pressure switch switching signal is "1", the simulation 1301 is switched to the fire extinguisher bottle, and when the pressure switch switching signal is "0", the simulation 1211 is switched to the fire extinguisher bottle.
The line pressure switch circuit 106 is configured to simulate the circuit of the line pressure switch at a second preset time after the fire bottle pressure switch is turned off, wherein the second preset time is the spraying time of the residue in the line of the fire bottle, for example, the second preset time is 1 s. For example, 1211 fire suppression bottles have a line, while 1301 fire suppression bottles have no line. The line pressure switch circuit 106 includes a fourth power tube switch having pin 3 connected to the output signal of the line pressure switch, pin 1 connected to a fifth I/O terminal of the microcontroller via a first resistor, and pin 2 connected to ground, and a first resistor.
The fire-extinguishing bottle simulation device further comprises a microcontroller for: receiving an electric detonator driving voltage from an electric detonator driving signal acquisition circuit; calculating the starting time of the electric detonator according to the driving voltage of the electric detonator; and after the starting time, providing an electric detonator starting signal to the electric detonator driving signal acquisition circuit to start the fire extinguishing bottle. Calculating the starting time of the electric detonator by the following formula: Δ Q is U2/R T, where Δ Q is the energy required to open the squib, U is the squib drive voltage value, R is the squib resistance value, and T is the squib start-up time. For example, the squib start time is 3ms or more and 6ms or less, preferably 3 ms.
The fire-extinguishing bottle simulation device also comprises 3 super capacitors used as a power supply to supply power to the fire-extinguishing bottle, and the capacity of each super capacitor is 13.5V/1.6F.
Hereinafter, the fire-extinguishing bottle simulation device will be described in detail by way of specific examples with reference to fig. 2 to 4.
The invention provides a simulated fire extinguishing bottle suitable for detecting a fire extinguishing and explosion suppression system of an equipment vehicle, which is characterized in that when any one path of simulated electric explosion tube of the simulated fire extinguishing bottle receives external driving signal energy, the simulated electric explosion tube is started at a specified time, and a pressure switch and a corresponding pipeline pressure switch of the fire extinguishing bottle are disconnected at a specified time according to the type of the fire extinguishing bottle, and meanwhile, the simulated fire extinguishing bottle has the functions of simulating fault states such as no spray bottle and the like of the fire extinguishing bottle, and the electric characteristics of the electric explosion tube and the pressure switch of the fire extinguishing bottle 1211 and the fire extinguishing bottle 1301 are simulated.
The simulated fire extinguishing bottle is characterized in that a microcontroller collects the voltage value of an electric explosion tube end driving signal through an AD (analog-to-digital) circuit, converts the voltage value into a current energy value, controls a high-current power tube BTS3018 to simulate the on-off of an electric explosion tube and a pressure switch according to the operating conditions of 1211 fire extinguishing bottles, 1301 fire extinguishing bottles and fault fire extinguishing bottles, and simulates the starting characteristics and the action characteristics of the electric explosion tube of 1211 fire extinguishing bottles, 1301 fire extinguishing bottles and fault fire extinguishing bottles.
1211 fire extinguishing bottle has 2 electric blasting tubes for controlling the spraying of the pipes of the power cabin and the bottom cabin, respectively, so that the simulation bottle is provided with two paths of DBA and DBB collecting ports. 1301 the fire bottle has 1 electric squib, shares DBA port with 1211 fire bottle.
When a DBA or DBB electric detonator driving signal is received, the AD acquires a corresponding voltage value at the PA5 or PA3 end, the starting time of the electric detonator is calculated according to the acquired voltage value for driving the electric detonator, the corresponding PB2 or PB1 is disconnected, and an AD acquisition circuit is shown in figure 2.
When the electric detonator is started, the pressure switch of the fire extinguishing bottle is switched off within a set time, and the PB0 port controls YL output signals. The PB7 controls and switches 1211 the pressure switch of the fire extinguisher bottle and 1301 the pressure switch of the fire extinguisher bottle. The fire bottle pressure switch circuit is shown in figure 3.
After the fire bottle pressure switch is switched off, the pipeline pressure switch is switched off within set time, corresponding YL2 or YL3 output signals are controlled by ports PB3 or PB4, and a pipeline pressure switch circuit is shown in figure 4.
The power supply adopts 3 super energy storage capacitors, the single super energy storage capacitor has the capacity of 13.5V/1.6F, and the working time of the simulated fire extinguishing bottle is more than 2 hours. The simulated fire extinguishing bottle can be charged by adopting an on-board power supply, and the full-charging time is less than 5 minutes.
Specifically, in the embodiment, when the fire extinguishing and explosion suppression system needs to simulate a power cabin and a bottom cabin fire, the mode is switched to 1211 through the selection key. The simulation fire extinguishing bottle is collected the voltage value of electric explosion pipe end drive signal by microcontroller through AD, converts the electric current energy value into, according to the formula:
ΔQ＝U2/R*T
delta Q is the energy required for disconnecting the electric detonator, U is the voltage value for driving the electric detonator, R is the resistance value of the electric detonator, and T is the starting time of the electric detonator.
The energy delta Q for starting the electric detonator and the resistance value of the electric detonator are fixed values, so that the starting time of the electric detonator can be calculated through the collected voltage value for driving the electric detonator.
When the fire extinguishing explosion suppression system gives a power cabin fire alarm, the DBA receives an electric explosion tube driving signal, the AD acquires the voltage value at the PA5 end, the time for starting the electric explosion tube is calculated according to the acquired voltage value for driving the electric explosion tube, the PB2 is disconnected, and the AD acquisition circuit is shown in figure 2.
When the fire extinguishing explosion suppression system gives a fire alarm in the bottom cabin, the DBB receives a driving signal of the electric detonator, the AD acquires a voltage value at the PA3 end, the starting time of the electric detonator is calculated according to the acquired voltage value for driving the electric detonator, the broken PB1 and the AD acquisition circuit are shown in figure 2.
When the electric detonator is started, the pressure switch of the fire extinguishing bottle is switched off within set time, and the YL output signal is controlled by a PB0 port. The fire bottle pressure switch circuit is shown in figure 3.
After the fire bottle pressure switch is switched off, the pipeline pressure switch is switched off within set time, corresponding YL2 or YL3 output signals are controlled by ports PB3 or PB4, and a pipeline pressure switch circuit is shown in figure 4.
The power supply of the simulated fire extinguishing bottle adopts 3 super energy storage capacitors, the single super energy storage capacitor has the capacity of 13.5V/1.6F, and the power supply of the simulated fire extinguishing bottle is realized according to a capacitor potential energy formula:
E＝1/2*C*U2，
e is the potential energy of the capacitor, C is the capacitance of the capacitor, and U is the rated voltage of the capacitor.
The potential energy of a single capacitor is 1/2 × 1.6F × 13.52 × 145.8, so the total potential energy of 3 capacitors is 437.4J.
Adopt MCU to select for use low-power consumption STM32L series singlechip, its operating voltage is 3.3v, and the electric current is 15mA, according to the power formula:
P＝UI
p is working power, U is working voltage, and i is working current.
The operating power of the single chip processor is 3.3v 0.015A 0.0495W. According to the formula of discharge time:
t＝E/P
t is the discharge time, E is the potential energy, and P is the power.
The working time t of the energy storage capacitor is 437.4J/0.0495W is 8836.36s, namely 2.45 h. The simulated fire extinguishing bottle can be charged by using a vehicle power supply, and the filling time is less than 5 minutes.
Referring to fig. 5, an operation button is arranged on the panel of the simulated fire extinguisher bottle, the type of the fire extinguisher bottle to be simulated is selected through the operation button, the fire extinguisher bottle is set to be in fault, and twelve indicator lamps are arranged on the panel. The indicator light marked with the character "1301" indicates the model of the current fire extinguisher bottle, the warm yellow indicates that the 1301 type fire extinguisher bottle works, and the dark indicates that the fire extinguisher bottle is not selected; the indicator light marked with the letter "1211" indicates the model of the current fire-extinguishing bottle, warm yellow indicates that the 1211 type fire-extinguishing bottle is working, and dark indicates that the fire-extinguishing bottle is not selected; an indicator light marked with a word of 'failure', wherein warm yellow indicates that the current fire extinguisher bottle has a failure, and dark indicates that the fire extinguisher bottle is not selected; the indicator lights marked with the characters 'electric explosion tube A and electric explosion tube B' respectively show the states of two paths of electric explosion tubes of one fire extinguishing bottle, red shows that the electric explosion tube A and the electric explosion tube B are exploded, and dark shows that the electric explosion tube B is intact; the indicator lamps marked with the characters of 'pressure switch' and 'pipeline pressure switch', wherein red indicates that the pressure switch is disconnected, and dark indicates that the pressure switch is intact; the word "fully charged" indicator is labeled, green indicates that the capacitor is fully charged, and dark indicates full or uncharged; an indicator light of "charging", red indicating charging and dark indicating not charging; the red of the indicator light of "undervoltage" indicates that the electric quantity is lower, need to charge in time, the dark indicates that the voltage is normal; the key labeled with the character 'selection key' is used for selecting the types of '1301', '1211' and 'fault' fire extinguishing bottles, and the operation indicating lamp is arranged in the selection key and is on when the simulated fire extinguishing bottle works.
Referring to fig. 2 and 5, when the fire extinguisher bottle is selected 1301 by the "select key", the microcontroller provides a pressure switch switching signal "1" through the fourth I/O terminal PB7 to turn on the capacitor CC 1. When the fire bottle is selected 1211 by the "select key", the microcontroller provides a pressure switch switching signal "0" through the fourth I/O terminal PB7 to disconnect the capacitor CC 1. When the bottle fault is selected by the 'selection key', the electric detonator is not started and the pressure switch is not released. For example, the microcontroller provides the electrical squib activation signal "0" but does not provide the electrical squib activation signal "1" via the first I/O terminal PB1 or PB2, so that the electrical squib is not activated. The microcontroller provides pressure switch signal "1" via third I/O terminal PB0 without providing pressure switch signal "0" so that the pressure switch is not released.
When the fire extinguishing and explosion suppression system needs to simulate a passenger compartment fire, the mode is switched to 1301 fire extinguishing bottles through a selection key, then the fire extinguishing bottles are output through PB7, and a capacitor CC1 works. The DBA receives an electric detonator driving signal, the AD acquires a voltage value at the PA5 end, the starting time of the electric detonator is calculated according to the acquired voltage value for driving the electric detonator, the PB2 is disconnected, and an AD acquisition circuit is shown in figure 2.
When the electric detonator is started, the pressure switch of the fire extinguishing bottle is switched off within set time, and the YL output signal is controlled by a PB0 port. The fire bottle pressure switch circuit is shown in figure 3.
When the fire extinguisher fault needs to be simulated, the fault mode is switched to through the selection key, and then the PB1 or PB2 port for controlling the electric detonator to start and the PB0 for controlling the pressure switch do not output signals.
The simulated fire extinguishing bottle designed by the invention can truly simulate the working characteristics of 1211 fire extinguishing bottles and 1301 fire extinguishing bottles, simulate the processes of electric explosion tube explosion, fire extinguishing bottle pressure switch disconnection and pipeline pressure switch disconnection, and also can simulate the fault state of the fire extinguishing bottle. The simulated fire extinguishing bottle is fully considered as a vehicle-mounted accessory, is stored in a severe storage environment for a long time, is powered by the super capacitor, can be quickly charged by a working lamp socket or a storage battery of a vehicle, and has enough electric quantity endurance capacity to complete detection of a vehicle fire extinguishing and explosion suppression system.
In another embodiment of the invention, a fire suppression bottle simulation method is disclosed. Referring to fig. 6, a fire suppression bottle simulation method includes: step S602, when the fire suppression system gives a fire alarm, simulating a circuit for starting the electric shock tube of the fire extinguishing bottle according to the starting time of the electric shock tube; step S604, simulating a circuit of the pressure switch disconnection of the fire extinguishing bottle at a first preset time after the electric detonator is started, wherein the first preset time is the bottle spraying time of the fire extinguishing bottle; and step S606, simulating the circuit of the disconnection of the pipeline pressure switch at a second preset time after the disconnection of the fire-extinguishing bottle pressure switch, wherein the second preset time is the spraying time of the residues in the pipeline of the fire-extinguishing bottle.
The fire-extinguishing bottle simulation method also comprises a plurality of other steps, and since the fire-extinguishing bottle simulation method corresponds to the fire-extinguishing bottle simulation device, detailed description of the other steps is omitted for avoiding redundancy.
The simulated fire extinguishing bottle provided by the invention can truly simulate the working characteristics of 1211 fire extinguishing bottles and 1301 fire extinguishing bottles, simulate the processes of electric explosion tube explosion, fire extinguishing bottle pressure switch disconnection and pipeline pressure switch disconnection, and also can simulate the fault state of the fire extinguishing bottle. The simulated fire extinguishing bottle is fully considered as a vehicle-mounted accessory, is stored in a severe storage environment for a long time, is powered by the super capacitor, can be quickly charged by a working lamp socket or a storage battery of a vehicle, and has enough electric quantity endurance capacity to complete detection of a vehicle fire extinguishing and explosion suppression system.
Compared with the prior art, the invention can realize at least one of the following beneficial effects:
1. the fire-extinguishing bottle simulator has high simulation degree, can truly reflect the explosion starting process of the electric explosion tube of the fire-extinguishing bottle, and can completely test the functions of the fire-extinguishing explosion suppression system when the pressure of the fire-extinguishing bottle and the pressure switch of the fire-extinguishing pipeline are disconnected;
2. the starting time of the electric shock tube of the fire extinguishing bottle can be accurately simulated through a software algorithm according to the received different driving voltages of the fire extinguishing bottle;
3. a fire bottle pressure switch is added to simulate the disconnection process of 1211 fire bottle pressure switches and 1301 fire bottle pressure switches, and the input of a pipeline pressure switch is added to realize the function detection of a fire extinguishing system with the pipeline pressure switch; and
4. the super capacitor is adopted for power supply, so that the problems that the conventional simulated fire extinguishing bottle adopts a dry battery for power supply, the battery needs to be replaced, and the product is damaged due to leakage of the battery during long-term storage are solved; or the lithium battery supplies power, the charging is slow, the service life of the lithium battery is short under the severe storage condition, and the like.
Those skilled in the art will appreciate that all or part of the flow of the method implementing the above embodiments may be implemented by a computer program, which is stored in a computer readable storage medium, to instruct related hardware. The computer readable storage medium is a magnetic disk, an optical disk, a read-only memory or a random access memory.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. A fire suppression bottle simulation device, comprising:
the electric explosion tube driving signal acquisition circuit is used for simulating a circuit for starting the electric explosion tube of the fire extinguishing bottle according to the starting time of the electric explosion tube when the fire extinguishing suppression system gives a fire alarm;
the fire extinguishing bottle pressure switch circuit is used for simulating a circuit of the fire extinguishing bottle pressure switch for disconnection at a first preset time after the electric detonator is started, wherein the first preset time is the bottle spraying time of the fire extinguishing bottle; and
and the pipeline pressure switch circuit is used for simulating a circuit of the pipeline pressure switch after the fire extinguisher bottle pressure switch is switched off at a second preset time, wherein the second preset time is the spraying time of residues in the pipeline of the fire extinguisher bottle.
2. A fire bottle simulator as defined in claim 1, further comprising a microcontroller for:
receiving an electric detonator driving voltage from the electric detonator driving signal acquisition circuit;
calculating the starting time of the electric detonator according to the electric detonator driving voltage; and
after the start time, providing an electric detonator start signal to the electric detonator driving signal acquisition circuit to simulate starting of an electric detonator.
3. The fire-extinguishing bottle simulation device according to claim 2, wherein the starting time of the electric detonator is calculated by the following formula:
ΔQ＝U2/R*T，
wherein Δ Q is energy required to disconnect the squib, U is a squib driving voltage value, R is a squib resistance value, and T is a start time of the squib.
4. The fire suppression bottle simulation apparatus of claim 2, wherein the squib drive signal acquisition circuit comprises a voltage divider, a squib resistor, and a first power tube switch, wherein,
the voltage divider is used for dividing the electric detonator driving voltage so as to collect partial voltage in the electric detonator driving voltage through the microcontroller;
the electric detonator resistor is used for simulating the resistance of the electric detonator; and
and the first power tube switch is used for switching on or switching off according to the starting time of the electric explosion tube and the bottle spraying time of the fire extinguishing bottle.
5. The fire bottle simulator of claim 4, wherein said voltage divider comprises a third resistor and a fourth resistor, said squib drive signal acquisition circuit further comprising: a second resistor, a zener diode, a fifth resistor, and a first capacitor, wherein,
a first end of the squib resistor is connected to the DB terminal, a second end of the squib resistor is connected to pin 3 of the first power tube switch, pin 1 of the first power tube switch is connected to a first I/O terminal of the microcontroller via a second resistor, and pin 2 of the first power tube switch is grounded;
a first end of the third resistor is connected to the DB terminal, a second end of the third resistor is connected in series to a first end of the fourth resistor, and a second end of the fourth resistor is grounded;
the zener diode is connected in parallel with the fourth resistor;
a first end of the fifth resistor is connected to a cathode of the zener diode, a second end of the third resistor, and a first end of the fourth resistor, and a second end of the fifth resistor is connected to a second I/O terminal of the microcontroller; and
the first capacitor is connected between the second terminal of the fifth resistor and a ground terminal.
6. The fire bottle simulation apparatus of claim 1, wherein the fire bottle pressure switch circuit comprises a sixth resistor, a seventh resistor, a second power tube switch, a third power tube switch, and a second capacitor, wherein,
the positive terminal of the second capacitor is connected to the output terminal YL;
pin 3 of the second power tube switch is connected to the output terminal YL, pin 1 of the second power tube switch is connected to a third I/O terminal of the microcontroller via the sixth resistor, and pin 2 of the second power tube switch is grounded; and
pin 3 of the third power tube switch is connected to the negative pole of the second capacitor, pin 1 of the third power tube switch is connected to a fourth I/O terminal of the microcontroller via a seventh resistor, and pin 1 of the third power tube switch is grounded, wherein the microcontroller provides a pressure switch switching signal via the fourth I/O terminal to switch between 1211 and 1301 fire bottles.
7. The fire bottle simulator of claim 1, wherein said line pressure switch circuit comprises a fourth power tube switch and a first resistor, wherein,
pin 3 of the fourth power tube switch is connected to the output signal of the line pressure switch, pin 1 of the fourth power tube switch is connected to the fifth I/O terminal of the microcontroller via the first resistor, and pin 2 of the fourth power tube switch is grounded.
8. Fire bottle simulation device according to any of the claims 1 to 7, characterized by 3 supercapacitors for powering the fire bottle as a power source, the supercapacitors having a capacity of 13.5V/1.6F.
9. The fire-suppression bottle simulation apparatus according to any one of claims 1 to 6, wherein the fire-suppression bottle comprises a 1211 fire-suppression bottle and a 1301 fire-suppression bottle, and the electric detonator driving signal acquisition circuit comprises a same first electric detonator driving signal acquisition circuit and a same second electric detonator driving signal acquisition circuit, wherein,
the first electric detonator driving signal acquisition circuit and the second electric detonator driving signal acquisition circuit are used for simulating the 1211 fire extinguishing bottle; and
the first electric detonator driving signal acquisition circuit is configured to be used for simulating the 1301 fire extinguishing bottle.
10. A method of simulating a fire suppression bottle, comprising:
when the fire extinguishing suppression system gives a fire alarm, simulating a circuit for starting the electric shock tube of the fire extinguishing bottle according to the starting time of the electric shock tube;
simulating a circuit of a pressure switch of a fire extinguishing bottle to be switched off at a first preset time after the electric detonator is started, wherein the first preset time is the bottle spraying time of the fire extinguishing bottle; and
and simulating a circuit of the disconnection of the pipeline pressure switch at a second preset time after the disconnection of the fire-extinguishing bottle pressure switch, wherein the second preset time is the spraying time of the residues in the pipeline of the fire-extinguishing bottle.
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