阅读说明：本技术 一种用于压裂车的消防装置及其控制方法 (Fire fighting device for fracturing truck and control method thereof ) 是由 张国尧 张斌 刘傲 姜薇 薛辉 于 2020-03-09 设计创作，主要内容包括：本发明公开了一种压裂车的消防装置及其控制方法,包括压裂车,压裂车上设置有消防控制箱7,触发控制线束5,灭火喷射装置6,热像仪1；热像仪1将相关信号传至控制器分析,温度达到报警设定值后,蜂鸣器11响,指示灯14亮,温度达到设定触发值且延时时间到后,控制器经触发控制线束5传输执行信号,灭火喷射装置6内部的气溶胶便迅速覆盖火灾区域；控制箱7同时输出台上发动机熄火信号,切断压裂车上油路与散热风扇主动力；参数值通过PC机下载至控制器,对发动机、传动箱、压裂泵等不同区域分设不同的温度阈值,依据绝对温度与温升速率并用的规则来判断与预测火情；该消防装置解决了压裂车火灾检测误报漏报和灭火效率低的问题。(The invention discloses a fire fighting device of a fracturing truck and a control method thereof, wherein the fire fighting device comprises the fracturing truck, a fire fighting control box 7, a trigger control wire harness 5, a fire extinguishing injection device 6 and a thermal imager 1 are arranged on the fracturing truck; the thermal imager 1 transmits the related signals to the controller for analysis, when the temperature reaches an alarm set value, the buzzer 11 sounds, the indicator lamp 14 is on, when the temperature reaches a set trigger value and the delay time is up, the controller transmits an execution signal through the trigger control wire harness 5, and the aerosol in the fire extinguishing injection device 6 quickly covers a fire area; the control box 7 simultaneously outputs an engine flameout signal on the table and cuts off the main power of an oil path and a cooling fan on the fracturing truck; downloading the parameter values to a controller through a PC (personal computer), setting different temperature thresholds for different areas such as an engine, a transmission case, a fracturing pump and the like, and judging and predicting the fire condition according to a rule of using the absolute temperature and the temperature rise rate; the fire fighting device solves the problems of false alarm and missing alarm of the fracturing truck fire detection and low fire extinguishing efficiency.)

1. The fire fighting device comprises a fracturing truck, wherein the fracturing truck is provided with a fire extinguishing injection device 6, a trigger control wire harness 5, a thermal imager 1, a control wire harness 2, a network cable 3 and a control box 7; the optional PC 4 is arranged on an instrument vehicle for remote monitoring, a certain amount of aerosol fire extinguishing materials are stored in the fire extinguishing spraying device 6, and the aerosol volume is increased and released after the fire extinguishing spraying device 6 is triggered and started by electricity, so that a fire area is quickly covered to achieve the purpose of fire extinguishing; the trigger control wire harness 5 is responsible for transmitting a trigger signal to the fire extinguishing spraying device 6 and is formed by combining a plurality of cables with certain length (such as 3 meters) into a group; the thermal imager 1 is fixedly installed at a position nearby the upper part of a monitoring area along with a vehicle, wherein a network cable 3 transmits temperature signals, thermal images and video signals, a control wire harness 2 provides power and switching value output signals, the monitoring area comprises a vehicle platform engine, a transmission box and the surface of the engine, and the surface temperature of non-contact detection equipment is detected whether to reach a set fire alarm and fire extinguishing triggering temperature value or not; the control box 7 is a control center of the whole fire fighting device, an embedded controller, an IO wiring board, an Ethernet interface board, a power supply and the like are arranged in the control box, when a detected temperature value reaches a set alarm value, a system sends out an audible and visual alarm signal to prompt people of possible fire occurrence, a prevention effect is achieved, when the detected temperature value reaches a set trigger value, after a set delay time is up, the control box automatically outputs a signal to the fire extinguishing injection device 6 to extinguish fire, and during working, an optional PC machine is networked with the fire fighting control box in an instrument vehicle through a network cable to monitor and manage the whole state.

2. The fire fighting device for the fracturing truck and the control method thereof according to claim 1, wherein the control box is provided with a power switch 5, a PC communication port 12, an emergency fire extinguishing key 10, a buzzer 11, a power indicator 13, an alarm indicator 14, a thermal imager abnormality indicator 15, a fire extinguishing agent release indicator 16 and a fire extinguishing agent release indicator 17 on a panel.

3. The fire fighting device for the fracturing truck and the control method thereof according to claim 1, further comprising a multi-alarm triggering mode of operation software built in the embedded controller, and outputting alarms according to different levels; different alarm values are respectively set for different areas of an engine, a transmission case and a fracturing pump, and the alarm rule adopts the combination of an absolute value and a relative value (temperature rise rate); the software has the function of analyzing and storing, and the occurrence time, the fire position and the thermal image video are automatically stored after the thermal imager detects the first fire point.

4. The fire fighting device for the fracturing truck and the control method thereof according to claim 1, wherein the embedded controller sends out a fire extinguishing triggering control signal and also sends out a signal for emergency flameout of the engine of the fracturing truck after detecting and analyzing that the temperature is abnormal and fire needs to be extinguished, and the controller has three fire extinguishing control modes at the same time: the automatic fire extinguishing system comprises an automatic fire extinguishing control mode, a manual fire extinguishing control mode and a remote fire extinguishing control mode, wherein the automatic fire extinguishing mode is to automatically trigger fire extinguishing after the temperature detected by the thermal imager reaches a set value, the manual fire extinguishing control mode is to press a panel to emergently extinguish fire without time delay, and the remote fire extinguishing control mode is to immediately extinguish fire through remote PC operation management software without time delay.

5. The fire fighting device for the fracturing truck and the control method thereof according to claim 1, wherein the trigger control harness comprises waterproof electrical connectors, each group of unit cable terminals are prefabricated with the waterproof electrical connectors, the harness is formed by combining a plurality of groups of cables through the electrical connectors, and the fire extinguishing spraying devices 6 are connected into a bus structure by the trigger control harness.

6. The fire fighting device for the fracturing truck and the control method thereof according to claim 1, wherein the thermal imager 1 can transmit a temperature signal by ethernet communication, and can only send a switching value signal after reaching a set temperature value by controlling a wire harness; the thermal image signal and the video signal can also be transmitted to the PC through the network cable; the net wires and the control wire harnesses adopt prefabricated cables with M12 joints, and only the net wires and the control wire harnesses need to be inserted into a terminal in a rotating mode during installation.

7. The fire fighting device for fracturing truck and the control method thereof according to claim 1, further comprising the fire extinguishing spraying device 6 using aerosol which is harmless to human body and free from environmental pollution.

8. The fire fighting device for the fracturing truck and the control method thereof according to claim 1, wherein the controller has a self-diagnosis function, and when the difference between the fire extinguishing spraying device and the thermal imager is larger than a normal resistance value, the controller outputs a fault signal to the panel to remind the fire extinguisher or the thermal imager to be replaced.

Technical Field

The invention belongs to the technical field of development equipment for petroleum, shale gas and coal bed gas, and relates to a fire fighting device of a fracturing truck.

Background

The fracturing truck is important equipment for improving oil and gas recovery ratio and developing and producing shale gas, China enters an 'industrial fracturing' era at present, a large-displacement and high-pressure fracturing process enables fire accidents caused by fracturing equipment such as an engine, a transmission case and a fracturing pump to happen at the moment, so that the fracturing truck urgently needs a set of fire fighting device which can effectively prevent fire from happening and can quickly extinguish fire, most of the fire fighting devices which are equipped on the fracturing truck at present are handheld dry powder fire extinguishers, no corresponding automatic fire detection element is connected, and fire prevention cannot be realized; aiming at fire detection, a gas sensor and a smoke detector are usually adopted, although the smoke detector can play a role in alarming fire, the smoke detector is not suitable for outdoor fracturing well site air circulation places, the coverage area of the handheld dry powder fire extinguisher is small, the efficiency is poor, the fire cannot be extinguished in time, the maintenance performance is not good enough, the fire is inspected once every half year, the medicament is replaced once every year, and inconvenience is brought to users.

On the other hand, the anti-freezing liquid in the radiator at the top of the fracturing truck, the diesel oil in the oil tank at the bottom, the oil in the lubricating oil tank and the like all belong flammable liquid at high temperature, the rotating speed of an engine on the fracturing truck platform under normal operation is 1900rpm, if the engine is not rapidly stopped when a fire occurs, cooling water containing the anti-freezing liquid in a heat dissipation pipeline, engine oil in a lubrication pipeline and the diesel oil in an oil delivery pipeline of a diesel engine still circularly flow at high speed under the driving of the engine power, and after the fire occurs, the liquids are sprayed under certain pressure of an internal pipeline and form a flowing fire dragon when meeting the naked fire.

Therefore, the device capable of efficiently preventing fire and extinguishing fire is a practical problem faced by the existing fracturing truck fire control, the fire-fighting device for the fracturing truck can prevent fire at any time, timely extinguish fire, enable a truck platform engine to be flamed out in the first time after the fire occurs, does not influence follow-up normal operation, is simple and easy to maintain, finally improves the overall working stability of the fracturing truck, and provides powerful equipment guarantee for long-time uninterrupted 'industrial fracturing'.

Disclosure of Invention

The invention aims to provide a fire fighting device of a fracturing truck and a control method thereof, which solve the problems of missed and false fire detection and low fire extinguishing efficiency of the conventional fracturing truck in the using process, not only can timely extinguish fire, but also can provide an alarm signal to warn operators according to the trend before the fire occurs, effectively prevent the fire from occurring, simultaneously do not cause damage to the electric circuit of the fracturing truck, and have no pollution to the environment. The invention has the technical scheme that the fire fighting device of the fracturing truck and the control method thereof comprise the fracturing truck, wherein the fracturing truck is provided with a fire extinguishing spraying device 6, a trigger control wire harness 5, a thermal imager 1, a control wire harness 2, a network cable 3 and a control box 7; the optional PC 4 is arranged on an instrument vehicle for remote monitoring, a certain amount of aerosol fire extinguishing materials are stored in the fire extinguishing spraying device 6, and the aerosol volume is increased and released after the fire extinguishing spraying device 6 is triggered and started by electricity, so that a fire area is quickly covered to achieve the purpose of fire extinguishing; the trigger control wire harness 5 is responsible for transmitting a trigger signal to the fire extinguishing spraying device 6 and is formed by combining a plurality of cables with certain length (such as 3 meters) into a group; the thermal imager 1 is fixedly installed at a position nearby the upper part of a monitoring area along with a vehicle, wherein a network cable 3 transmits temperature signals, thermal images and video signals, a control wire harness 2 provides power and switching value output signals, the monitoring area comprises a vehicle platform engine, a transmission box and the surface of the engine, and the surface temperature of non-contact detection equipment is detected whether to reach a set fire alarm and fire extinguishing triggering temperature value or not; the control box 7 is a control center of the whole fire fighting device, an embedded controller, an IO wiring board, an Ethernet interface board, a power supply and the like are arranged in the control box, when a detected temperature value reaches a set alarm value, a system sends out an audible and visual alarm signal to prompt people of possible fire occurrence, a prevention effect is achieved, when the detected temperature value reaches a set trigger value, after a set delay time is up, the control box automatically outputs a signal to the fire extinguishing injection device 6 to extinguish fire, and during working, optional PC operation software is networked with the fire fighting control box in the instrument truck through a network cable to monitor and manage the whole state.

The invention relates to a fire fighting device for a fracturing truck and a control method thereof, which are further characterized in that:

the panel of the control box is provided with a power switch 5, a PC communication port 12, an emergency fire-extinguishing key 10, a buzzer 11, a power indicator 13, an alarm indicator 14, a thermal imager abnormal indicator 15, a fire-extinguishing agent release indicator 16 and a fire-extinguishing agent release indicator 17.

The operating software built in the embedded controller has a multiple alarm triggering mode and alarms according to different grades; different alarm values are respectively set for different areas of an engine, a transmission case and a fracturing pump, and the alarm rule adopts the combination of an absolute value and a relative value (temperature rise rate); the software has the function of analyzing and storing, and the occurrence time, the fire position and the thermal image video are automatically stored after the thermal imager detects the first fire point.

The embedded controller need put out a fire the back at detection and analysis to temperature anomaly, when sending out the trigger control signal of putting out a fire, also send the signal that makes the fracturing unit truck engine promptly flame out, and the controller has three kinds of control modes of putting out a fire simultaneously: the automatic fire extinguishing system comprises an automatic fire extinguishing control mode, a manual fire extinguishing control mode and a remote fire extinguishing control mode, wherein the automatic fire extinguishing mode is to automatically trigger fire extinguishing after the temperature detected by the thermal imager reaches a set value, the manual fire extinguishing control mode is to emergently extinguish fire by pressing a panel without time delay, and the remote fire extinguishing control mode is to immediately extinguish fire through remote PC operation management software without time delay.

The trigger control wiring harness 5 comprises DEUTSHCH electrical connectors 23, each group of unit cable terminals are prefabricated with the DEUTSHCH electrical connectors 23, and the wiring harness can be formed by combining a plurality of groups of cables through the electrical connectors.

The thermal imager 1 can transmit a temperature signal by adopting Ethernet communication, and can only send a switching value signal after the temperature reaches a set temperature value by controlling a wire harness; the thermographic and video signals may also be transmitted to the PC via the network cable.

The network cable and the control wire harness adopt prefabricated cables with M12 joints, only the cables need to be inserted into a terminal in a rotating mode during installation, and the threaded connection guarantees that signal transmission is reliable physically.

The fire extinguishing spraying device 6 adopts aerosol which is harmless to human bodies and pollution-free to the environment, solid particles contained in the aerosol have the diameter smaller than 1 mu m, and the aerosol has gas fluidity, does not corrode equipment, has less settlement and does not harm electric elements of the fracturing truck.

The beneficial effects of the invention are that the invention comprises the following aspects:

1) the thermal imager is arranged on the fracturing truck, so that the surface temperature of important sensitive equipment such as an engine, a transmission case and a fracturing pump can be monitored in real time, only an alarm is given out and the fire is not extinguished when the temperature is detected to reach an alarm value instead of a trigger fire extinguishing value in real time on line, and thus an operator is reminded to check and maintain, and the equipment is prevented from being continuously deteriorated into a fire.

2) According to the size of a monitoring range, a plurality of fire extinguishing spraying devices are arranged in a sensitive area on the fracturing truck, and after the protection area is covered with four diagonal edges, aerosol sprayed by a fire extinguisher has good fluidity, can bypass barriers to quickly submerge the protection area completely, and quickly extinguish fire.

3) The alarm rule adopts the combination of an absolute value and a relative value (temperature rise rate), so that the normal working state and the fire state can be effectively distinguished, and the condition of no alarm and false alarm are avoided.

4) The fire condition of the fracturing truck is prevented from spreading, after the fire condition is detected, the power source of the fracturing truck, namely an engine, is cut off in the first time, so that the heat radiation fan does not rotate any more, and the oil pipe does not supply oil any more, thereby preventing the fire condition of a single fracturing truck from spreading to an adjacent fracturing truck.

5) The fire extinguisher and the temperature sensing element are both electrically connected by adopting a bus, and one wire harness is quickly interconnected and plugged by a plug connector, so that the fire extinguisher is quickly installed; the fire extinguishing spraying device is used for replacing the fire extinguishing material once in 15 years, and is installed and stored at normal temperature and normal pressure, so that the fire extinguishing spraying device is convenient to maintain.

6) The fire extinguishing agent is aerosol harmless to human bodies, does not damage ozone layers, does not corrode fracturing truck equipment, has few sediments and does not influence normal work of electrical elements.

7) The fire accident investigation is facilitated, thermal image video recording is automatically carried out after a fire is detected, and the time and the position of the first fire alarm point are automatically stored.

Drawings

FIG. 1 is a schematic illustration of a frac truck fire apparatus installation of the present invention;

FIG. 2 is a layout view of a control box panel of the fire protection device of the fracturing truck of the present invention;

FIG. 3 is a schematic structural view of a thermal imager of a fracturing truck in accordance with the present invention;

FIG. 4 is a schematic diagram of the control of the frac truck fire apparatus of the present invention;

fig. 5 is a connection diagram of the fire extinguishing spraying device of the fracturing truck fire fighting device of the invention.

In the figure, 1, a thermal imager, 2, a control wiring harness, 3, a network cable, 4, a PC, 5, a trigger control wiring harness, 6, a fire extinguishing injection device, 7, a fire control box, 8, a power switch, 9, a reset key, 10, an emergency fire extinguishing key, 11, a buzzer, 12, a PC communication port, 13, a power indicator, 14, an alarm indicator, 15, a thermal imager abnormal indicator, 16, a fire extinguishing agent release indicator, 17, a fire extinguisher fault indicator, 18, an imaging circuit assembly, 19, a mounting bracket, 20, a thermal imaging lens, 21, an infrared detector, 22, an M12 connector and 23, a DEUTSHCH electrical connector.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, the fire fighting device of the invention is installed on a fracturing truck top-loading device, firstly, a control box 7 is installed near a fracturing truck storage battery, a thermal imager 1 is led out from the control box 7 through a network cable and a control wire harness and then is fixedly installed above the vicinity of a protected object, the installation number, the installation angle and the installation height of the thermal imager are timely adjusted according to a monitoring range so as to cover the protected object or a key monitoring device area, the key monitoring device area comprises an engine, a transmission box and a fracturing pump surface, and the thermal imager is usually installed on the highest engine water tank side of the fracturing truck; leading out the trigger control wire harness 5 from the control box 7 to be connected to the fire-extinguishing spraying device 6; the fire extinguishing spraying devices 6 are arranged around a protected object according to the degree of fire occurrence, a plurality of fire extinguishers can be arranged to cover the fire-fighting areas of the heavy points such as an engine, a transmission case and a fracturing pump, the maximum number of the fire extinguishing spraying devices 6 is limited by the fact that the total trigger current is not more than the driving current of a controller, usually 4 fire extinguishing spraying devices are arranged in a diagonal manner, so that the fire extinguishing agent spraying coverage is optimal and economical, and the fire extinguishing spraying devices are cascaded with one another through the trigger wire harness 1; as an option, the PC can operate management software in the instrument vehicle through a network cable to carry out setting management and state monitoring on the whole set of fire fighting device, and if the PC is not arranged, the control box can also independently complete fire fighting monitoring and control.

Referring to fig. 2, in the panel layout of the control box of the fire fighting device, an operator installs the whole set of fire fighting device to turn on a power switch, and inserts a network cable into a PC communication port after observing that a power indicator 13 is normal, downloads a parameter set value to the control box by using PC running management software, and a controller in the control box automatically executes a set program; when the thermal imager detects that the temperature reaches an alarm set value, the alarm lamp 10 is turned on, the buzzer 11 sounds, the temperature reaches a trigger set value, the injection device is triggered to extinguish a fire and an engine is extinguished after a certain time delay, and the fire extinguishing agent release indicator lamp 16 is turned on after the fire extinguishing injection device 6 finishes injecting; when the fire is required to be immediately triggered to extinguish in an emergency, the fire extinguishing key 10 is pressed, and the fire extinguishing spraying device 6 is immediately triggered to extinguish fire and the engine is immediately extinguished without time delay; the system also has a self-detection function, when abnormal work such as circuit breaking or short circuit of the thermal imager is detected, the abnormal indicating lamp 15 of the thermal imager is lightened, and when abnormal circuit breaking or short circuit of the fire extinguishing injection device 6 is detected, the fire extinguishing agent release indicating lamp 17 is lightened; when the fire alarm is released, the sound and light alarm device returns to normal after the reset key is pressed.

Referring to fig. 3, the thermal imager is composed of a thermal imaging lens 1, an imaging circuit assembly 2, an infrared detector 3, an M12 connector 4, a control harness 5, and a mounting bracket 6. The thermal imaging lens 1 mainly achieves convergent imaging of thermal radiation of monitoring equipment on a fracturing truck, and the imaging circuit component 2 is composed of a detector interface board, a main processing board, a driving board, a power board and the like, and achieves functions of power-on control, signal acquisition, signal transmission, signal conversion, interface communication and the like. The infrared detector 3 mainly converts infrared radiation signals transmitted and converged by the thermal imaging lens into electric signals, and the signals are transmitted to the fire control box through the M12 connector 4 and the control wiring harness 5.

Referring to fig. 4, the fire fighting device of the present invention has the following control principle and control method:

a bottom program runs in an embedded controller arranged in a control box 7, the embedded controller is the brain of the whole fire fighting device and plays a role of core operation, infrared thermal radiation signals of monitoring equipment on a fracturing truck are converted into electric signals through an imaging circuit assembly and transmitted to a fire fighting control box, the electric signals are analyzed and operated through the embedded controller, when the temperature of the monitoring equipment of the fracturing truck exceeds a set alarm value, an alarm indicator lamp on a panel of the control box is on, when the temperature exceeds a set trigger value, a fire extinguishing control signal is sent out, after the electric signals are transmitted to a fire extinguishing spraying device through a trigger cable, aerosol is released to extinguish a fire, an acousto-optic alarm device sends out fire alarm sound, and the fire indicator lamp is on; meanwhile, the embedded controller sends out an engine flameout instruction through the IO interface board, and the engine ECU device automatically stops the engine; the alarm signal and the trigger signal are simultaneously transmitted to an instrument vehicle or other remote control centers through the Ethernet interface of the control box and a network cable, and the upper computer is communicated with the instrument vehicle or other remote control centers through the Ethernet to collect state information such as alarm and fire extinguishing and remotely control fire extinguishing.

Alarm temperature value and the settlement of the trigger temperature value of putting out a fire all are through net twine and host computer communication, set up in the host computer and download to the embedded controller of fire control in operation after well, two kinds of rules are taken according to the settlement of the trigger value of putting out a fire: the temperature rise rate is judged according to the absolute temperature value and the temperature rise rate (the temperature rises over a set value in set time), the two rules are selected according to different conditions, and the absolute temperature value and the temperature rise rate value can be set independently. The fire extinguishing trigger value and the alarm temperature value are set according to different areas, the engine, the transmission case, the fracturing pump and the like on the fracturing truck are respectively set with different alarm and trigger values, and the normal working state and the fire state are distinguished according to the set values of different equipment areas, so that false alarm and false trigger fire extinguishing are prevented.

The controller software can also detect the ignition point which is firstly ignited, automatically start video recording after receiving a fire alarm temperature signal captured by the thermal imager, and automatically store the occurrence time, the ignition position and the video image.

The controller also has a self-diagnosis function, and when the difference between the fire extinguishing injection device and the thermal imager is larger than the normal resistance value, the controller can output a fault signal to the panel to remind the user to replace the fire extinguisher or the thermal imager;

the controller has three working modes: automatic fire extinguishing, manual fire extinguishing, long-range fire extinguishing, three kinds of modes work simultaneously.

1) And (4) automatic fire extinguishing mode.

The temperature signal of the thermal imager is transmitted to the embedded controller through the network cable for analysis and operation, and if the temperature reaches an alarm value, the temperature signal is output to a PC (personal computer) in the instrument car for alarm display, and a fire alarm indicator lamp and a buzzer on a control panel act to prompt that a fire disaster is possible, so that an operator needs to check the equipment; if the temperature reaches the trigger value, a fire extinguishing signal and an engine flameout signal are sent out after a set delay time, the set delay time is used for preventing the thermal imager from generating a fault or a false alarm under normal conditions even if the thermal imager is at high temperature occasionally, and the setting of the delay time is carried out through the setting of an upper computer.

2) Manual fire extinguishing mode.

No matter whether the temperature signal of the thermal imager reaches a set value or not, the embedded controller directly outputs a fire extinguishing signal and an engine flameout signal without delaying as long as a corresponding key is pressed down, and the embedded controller is suitable for pressing down an emergency fire extinguishing key on a control box panel of a fire fighting device of the fracturing truck and emergently triggering a fire extinguishing injection device to extinguish fire when an operator finds that the fracturing truck does not send a fire alarm signal but has a fire sign under emergency conditions.

3) Remote fire suppression mode.

In an instrument vehicle or other places far away from a fire-fighting device control box, a computer runs control software, a fire-fighting instruction is directly issued when necessary, and a signal is remotely transmitted to a fire-fighting controller through the Ethernet to trigger a fire-fighting injection device to extinguish fire.

Referring to fig. 5, when it is necessary to arrange a plurality of fire extinguishing spray devices to increase fire extinguishing coverage, the plurality of fire extinguishing spray devices may adopt a bus type structure, and it is sufficient to connect a plurality of sets of unit cables into one bus using deutsch electrical connectors in the trigger control wire harness 5.

The fire extinguishing spraying device used by the invention is mainly composed of aerosol, the diameter of solid particles contained in the sprayed aerosol is smaller than 1 mu m, and is far smaller than the diameter of solid particles used by a common dry powder fire extinguisher, the fire extinguishing spraying device has gas fluidity, can rapidly bypass a barrier full-submerged protection area, has strong durability, and effectively prevents re-combustion.

The fire extinguishing agent used by the invention does not damage the ozone layer, does not corrode fracturing truck equipment, has less sediments and does not influence the normal work of electrical elements.

The invention combines the thermal imaging technology and the latest aerosol fire extinguishing material based on the embedded control technology, solves the problems of slow fire detection and low fire extinguishing efficiency of the fracturing truck in the use process, not only effectively prevents the single-truck fire of the fracturing truck, but also can timely cut off the fracturing power source, not enlarge the fire condition, further timely extinguish the fire and not re-fire, simultaneously does not damage the electrical system of the fracturing truck, does not influence the secondary use of the fracturing truck after fire extinguishment, has no pollution to the environment by the fire extinguishing material, improves the safety performance of the fracturing truck, and is a practical and reliable fire extinguishing solution for the existing fracturing truck.