Fire extinguishing method of passive energy fire extinguishing robot

Abstract

The invention relates to the technical field of fire extinguishing robots, in particular to a fire extinguishing method of a passive energy fire extinguishing robot. A liquefied fire extinguishing agent gas tank is installed in the robot, an outlet of the liquefied fire extinguishing agent gas tank is connected to an inlet of a heat exchanger, and an outlet of the heat exchanger is connected to an expansion machine; a liquid fire extinguishing agent discharged from the liquefied fire extinguishing agent gas tank absorbs environmental heat, high-pressure gas generated after the liquid fire extinguishing agent absorbs heat and is vaporized pushes the expansion machine to work, rotating mechanical power is generated after the expansion machine works to drive the fire extinguishing robot to work, and meanwhile generated electric energy supplies power to a sensor control circuit and other circuits of the robot. The robot recognizes the ignition position through a sensor; and the robot plans a walking route through the controller, so that the robot reaches an ignition point to extinguish fire. The power source of the robot is generated by pushing the expansion machine after the liquid fire extinguishing agent absorbs heat and is vaporized, combustible materials do not need to be carried as power raw materials, automatic fire extinguishing without combustible materials can be achieved completely, and the robot is safe, efficient and capable of being applied to various scenes.

Description

Technical Field

[0001] The invention relates to the technical field of fire-fighting robots, and in particular to a fire-fighting method of a passive energy fire-fighting robot. Background Art

[0002] A fire-fighting robot is a device that enters a fire scene to put out fires. It has the advantages of reducing the safety risk of firefighters and being applicable to a wide range of places. It is widely used in firefighting in underground parking lots and narrow spaces. However, existing fire-fighting robots generally use fuel, batteries, etc. as power sources. High temperature environments can easily detonate the robot's batteries and fuel, causing the robot to be destroyed and secondary fires. This method of fire-fighting that relies on the robot's own battery or fuel engine to drive still has room for improvement. Summary of the invention

[0003] The purpose of the present invention is to provide a fire extinguishing method of a passive energy fire extinguishing robot in view of the defects and shortcomings of the prior art.

[0004] To achieve the above object, the technical solution adopted by the present invention is: The fire extinguishing method of a passive energy fire extinguishing robot described in the present invention is characterized by comprising the following steps: Step 1: a liquefied fire extinguishing agent gas tank is installed on the robot; a liquid that does not support combustion is filled into the liquefied fire extinguishing agent gas tank; Step 2: Connect the outlet of the liquefied fire extinguishing agent gas tank to the inlet of the heat exchanger, and connect the outlet of the heat exchanger to the expander of the robot; Step 3, placing the fire-fighting robot in a fire-fighting place, when the liquefied fire-extinguishing agent gas tank is heated, the liquid in the tank is heated and expanded and vaporized, the gas outlet valve on the liquefied fire-extinguishing agent gas tank is opened, and the discharged gas drives the gas expander to work, and the gas expander generates electricity to power the robot; Step 4: The robot identifies the fire area through the sensor; Step 5, the robot is driven by the rotational mechanical power generated by the expander and the controller plans the walking route; Step six, the robot uses infrared thermal imaging technology to accurately identify the fire point and flame height, and extinguishes the fire through the fire extinguishing device inside the robot.

[0005] Furthermore, in step one, the liquid filled into the liquefied fire extinguishing agent gas tank is any one of liquefied carbon dioxide and liquefied nitrogen.

[0006] Furthermore, in step four, the sensor is any one of an infrared thermal imager, a temperature sensor, an infrared camera, and a visible light camera.

[0007] Furthermore, the robot is provided with a clamping claw.

[0008] Furthermore, in step six, the fire extinguishing device is a spray device.

[0009] Furthermore, in step six, the fire extinguishing device is a fire blanket.

[0010] Furthermore, the feed port of the spray device is connected to a liquefied fire extinguishing agent gas tank: the liquefied fire extinguishing agent gas tank is detachably connected to the fire extinguishing robot.

[0011] Furthermore, in step five, a suspension system is provided at the bottom of the fire-fighting robot; wheels are provided on the suspension system; the wheels are symmetrically distributed on both sides of the fire-fighting robot; a rotating shaft is connected to the wheels; the rotating shaft is connected to the impeller of the gas expander; the impeller connecting shaft of the gas expander is connected to the wheels of the fire-fighting robot through the rotating shaft.

[0012] Furthermore, a heat exchanger is provided on the surface of the liquefied fire extinguishing agent gas tank; the heat exchanger is composed of a plurality of pipes distributed on the surface of the liquefied fire extinguishing agent gas tank; and heat transfer oil is injected into the interior of the pipes.

[0013] After adopting the above structure, the beneficial effects of the present invention are as follows: (1) The energy source of the fire-fighting robot comes from the non-combustion liquid that is heated and vaporized to drive the expansion machine to work. On the one hand, the liquefied fire-extinguishing agent gas tank absorbs heat to reduce the temperature of the fire environment; on the other hand, the fire-fighting robot energy system does not burn or support combustion, and will not cause secondary fires during the fire-fighting process, and has high safety. (2) During the spraying process, the fire-extinguishing agent changes from liquid to gas, which can absorb heat and isolate the air from the flame to extinguish the fire, thereby improving the fire-fighting efficiency. (3) Compared with passive fire-fighting facilities such as portable fire extinguishers and fire blankets, the fire-fighting robot can automatically control the fire in the germination state by spraying, covering, etc., and can be used in a variety of scenarios. DETAILED DESCRIPTION

[0014] The present invention will be further described below.

[0015] The fire extinguishing method of a passive energy fire extinguishing robot described in the present invention is characterized by comprising the following steps: Step 1: a liquefied fire extinguishing agent gas tank is installed on the robot; a liquid that does not support combustion is filled into the liquefied fire extinguishing agent gas tank; Step 2: Connect the outlet of the liquefied fire extinguishing agent gas tank to the inlet of the heat exchanger, and connect the outlet of the heat exchanger to the expander of the robot; Step 3, placing the fire-fighting robot in a fire-fighting place, when the liquefied fire-extinguishing agent gas tank is heated, the liquid in the tank is heated and expanded and vaporized, the gas outlet valve on the liquefied fire-extinguishing agent gas tank is opened, and the discharged gas drives the gas expander to work, and the gas expander generates electricity to power the robot; Step 4: The robot identifies the fire area through the sensor; Step 5, the robot is driven by the rotational mechanical power generated by the expander and the controller plans the walking route; Step six, the robot uses infrared thermal imaging technology to accurately identify the fire point and flame height, and extinguishes the fire through the fire extinguishing device inside the robot.

[0016] As a first preferred embodiment of the present invention, in step 1, the liquid poured into the liquefied fire extinguishing agent gas tank is any one of liquefied carbon dioxide and liquefied nitrogen.

[0017] As a first preferred embodiment of the present invention, in step 4, the sensor is any one of an infrared thermal imager, a temperature sensor, an infrared camera, and a visible light camera.

[0018] As a first preferred embodiment of the present invention, the robot is provided with a clamping claw.

[0019] As a first preferred embodiment of the present invention, in step six, the fire extinguishing device is a spray device.

[0020] As a first preferred embodiment of the present invention, in step six, the fire extinguishing device is a fire blanket.

[0021] As a first preferred embodiment of the present invention, the feed port of the spray device is connected to a liquefied fire extinguishing agent gas tank: the liquefied fire extinguishing agent gas tank is detachably connected to the fire extinguishing robot.

[0022] As the first preferred embodiment of the present invention, in step five, a suspension system is provided at the bottom of the fire-fighting robot; wheels are provided on the suspension system; the wheels are symmetrically distributed on both sides of the fire-fighting robot; a rotating shaft is connected to the wheels; the rotating shaft is connected to the impeller of the gas expander; the impeller connecting shaft of the gas expander is connected to the wheels of the fire-fighting robot through the rotating shaft.

[0023] As a first preferred embodiment of the present invention, a heat exchanger is provided on the surface of the liquefied fire extinguishing agent gas tank; the heat exchanger is composed of a plurality of pipes distributed on the surface of the liquefied fire extinguishing agent gas tank; and heat transfer oil is injected into the interior of the pipes.

[0024] The expander is essentially no different from the existing technology, so it is not explained in detail. After entering the fast-flowing gas, the expander can generate electricity and mechanical kinetic energy to power the circuits inside the robot. The robot can be a walking robot or a small car. It is essentially no different from the existing technology, so it is not explained in detail.

[0025] The spray device is a pump body and a nozzle structure connected to the pump body. The spray device can spray the fire extinguishing agent, which can be any one of carbon dioxide and nitrogen. The circuit of the spray device is provided by the electric energy generated by the expander after operation. During the spraying process, the fire extinguishing agent changes from liquid to gas, which can absorb heat and isolate the air from the flame to extinguish the fire, thereby improving the fire extinguishing efficiency. An electric flow control valve is connected between the front end of the push expander and the liquefied fire extinguishing agent gas tank. The electric flow control valve can control the flow of gas entering the expander in the robot to control the power generation. The robot's internal control circuit, the robot's walking power and the spray fire extinguishing power are all generated by the liquid vaporizing and pushing the expander. The liquid vaporizes into non-flammable and non-combustible gas, which can be used in a variety of scenarios. When the impeller of the gas expander rotates, it drives the wheels to rotate, realizing the walking of the fire-fighting robot. In addition, the heat transfer oil is used to absorb the heat at the fire scene and release it to the liquefied gas in the liquefied fire extinguishing agent gas tank, increasing the internal energy of the liquefied gas inside the liquefied fire extinguishing agent gas tank, so that the gas ejected from the liquefied fire extinguishing agent gas tank obtains more kinetic energy, pushing the gas expander to do more work, and utilizing the heat of the fire environment.

[0026] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A fire extinguishing method using a passive energy fire extinguishing robot, characterized in that: The steps include: Step 1: a liquefied fire extinguishing agent gas tank is installed on the robot; a liquid that does not support combustion is filled into the liquefied fire extinguishing agent gas tank; Step 2: Connect the outlet of the liquefied fire extinguishing agent gas tank to the inlet of the heat exchanger, and connect the outlet of the heat exchanger to the expander of the robot; Step 3, placing the fire-fighting robot in a fire-fighting place, when the liquefied fire-extinguishing agent gas tank is heated, the liquid in the tank is heated and expanded and vaporized, the gas outlet valve on the liquefied fire-extinguishing agent gas tank is opened, and the discharged gas drives the gas expander to work, and the gas expander generates electricity to power the robot; Step 4: The robot identifies the fire area through the sensor; Step 5, the robot is driven by the rotational mechanical power generated by the expander and the controller plans the walking route; Step six, the robot uses infrared thermal imaging technology to accurately identify the fire point and flame height, and extinguishes the fire through the fire extinguishing device inside the robot.

2. The fire extinguishing method of a passive energy fire extinguishing robot according to claim 1, characterized in that: In step 1, the liquid filled into the liquefied fire extinguishing agent gas tank is any one of liquefied carbon dioxide and liquefied nitrogen.

3. The fire extinguishing method of a passive energy fire extinguishing robot according to claim 1, characterized in that: In step 4, the sensor is any one of an infrared thermal imager, a temperature sensor, an infrared camera, and a visible light camera.

4. The fire extinguishing method of a passive energy fire extinguishing robot according to claim 1, characterized in that: The robot is provided with a clamping claw.

5. The fire extinguishing method of a passive energy fire extinguishing robot according to claim 1, characterized in that: In step six, the fire extinguishing device is a spray device.

6. The fire extinguishing method of a passive energy fire extinguishing robot according to claim 4, characterized in that: In step six, the fire extinguishing device is a fire blanket.

7. The fire extinguishing method of a passive energy fire extinguishing robot according to claim 5, characterized in that: The feed port of the spray device is connected to a liquefied fire extinguishing agent gas tank: the liquefied fire extinguishing agent gas tank is detachably connected to the fire extinguishing robot.

8. The fire extinguishing method of a passive energy fire extinguishing robot according to claim 1, characterized in that: In step five, a suspension system is provided at the bottom of the fire-fighting robot; wheels are provided on the suspension system; the wheels are symmetrically distributed on both sides of the fire-fighting robot; a rotating shaft is connected to the wheels; the rotating shaft is connected to the impeller of the gas expander; the impeller connecting shaft of the gas expander is connected to the wheels of the fire-fighting robot through the rotating shaft.

9. The fire extinguishing method of a passive energy fire extinguishing robot according to claim 1, characterized in that: A heat exchanger is arranged on the surface of the liquefied fire extinguishing agent gas tank; the heat exchanger is composed of a plurality of pipes distributed on the surface of the liquefied fire extinguishing agent gas tank; and heat transfer oil is injected into the interior of the pipes.