阅读说明：本技术 一种二氧化碳水合物消防罐车 (Carbon dioxide hydrate fire-fighting tank car ) 是由 宋永臣 赵佳飞 王凡 张伦祥 杨磊 刘卫国 杨明军 刘瑜 王大勇 张毅 李洋辉 于 2021-10-14 设计创作，主要内容包括：本发明公开一种二氧化碳水合物消防罐车,包括消防车体、器材室和二氧化碳水合物消防罐体,所述二氧化碳水合物罐体与器材室分为独立区域,且均与消防车体配合装备；所述二氧化碳水合物罐体内设置有水合物生成装置和分解装置；所述生成装置由载冷剂管路和与其连通的消防车制冷系统连接；所述分解装置由金属传热刺球与二氧化碳气枪连接的气体安全控制阀组成；所述金属传热刺球连接消防车电源；所述二氧化碳气枪位于消防罐体顶部,打开二氧化碳气枪并加热金属传热刺球联合作用,使二氧化碳水合物迅速分解,水合物分解产生的低温水通过水枪喷出冷却易燃物,联合二氧化碳气枪喷出的二氧化碳进行灭火。本发明所述的二氧化碳消防罐车能够同时利用二氧化碳水合物分解产生的二氧化碳和低温水进行高效率灭火,具有成本低廉、环境友好,高效持续的优点。(The invention discloses a carbon dioxide hydrate fire-fighting tank car, which comprises a fire-fighting car body, an equipment room and a carbon dioxide hydrate fire-fighting tank body, wherein the carbon dioxide hydrate tank body and the equipment room are divided into independent areas and are matched with equipment of the fire-fighting car body; a hydrate generating device and a decomposing device are arranged in the carbon dioxide hydrate tank body; the generating device is connected with a fire engine refrigerating system communicated with the generating device through a secondary refrigerant pipeline; the decomposition device consists of a gas safety control valve connected with a carbon dioxide gas gun and a metal heat transfer barbed ball; the metal heat transfer thorn ball is connected with a fire engine power supply; the carbon dioxide air gun is positioned at the top of the fire-fighting tank body, the carbon dioxide air gun is opened and the combined action of the metal heat transfer thorn balls is heated, so that the carbon dioxide hydrate is rapidly decomposed, low-temperature water generated by the decomposition of the hydrate is sprayed out through the water gun to cool inflammable matters, and the fire is extinguished by combining carbon dioxide sprayed out from the carbon dioxide air gun. The carbon dioxide fire-fighting tank car can simultaneously utilize carbon dioxide and low-temperature water generated by decomposing the carbon dioxide hydrate to carry out high-efficiency fire extinguishing, and has the advantages of low cost, environmental friendliness, high efficiency and sustainability.)

1. A carbon dioxide hydrate fire-fighting tanker is characterized by comprising a carbon dioxide hydrate tank body (1), a secondary refrigerant pipeline (4), a power supply (5), a carbon dioxide air gun (6), a water gun (7), a first equipment chamber (8), a second equipment chamber (9) and a metal heat transfer thorn ball (10);

the carbon dioxide hydrate tank body (1), the first equipment chamber (8) and the second equipment chamber (9) are independent areas respectively and are in assembly connection with a fire fighting truck body, a water solution (2) and a carbon dioxide gas space (3) are filled in the carbon dioxide hydrate tank body (1), the water solution (2) and carbon dioxide generate carbon dioxide hydrate in a cooling environment of a low-temperature secondary refrigerant pipeline, low-temperature water and carbon dioxide gas generated by decomposition under the combined action of heating of a metal heat transfer stabbing ball (10) and a carbon dioxide gun control valve are sprayed out through a carbon dioxide gas gun (6) and a water gun (7) to extinguish fire; the metal heat transfer thorn ball (10) is composed of a ball body (11), a ball body connecting rod (12) and a metal thorn (13); the metal heat transfer barbed ball (10) is connected with a power supply (5), the metal heat transfer barbed ball is heated by power supply, and the metal heat transfer barbed ball is connected with the power supply for waterproof treatment.

2. The carbon dioxide hydrate fire tanker according to claim 1, wherein the carbon dioxide hydrate tank body (1) is made of stainless steel and can bear 5MPa pressure, the upper part and the lower part of the tank body are respectively provided with a carbon dioxide air gun (6) and a water gun (7), the carbon dioxide air gun (6) is connected with a gas safety control valve to regulate the release speed of carbon dioxide, and the tank body is wrapped with a layer of heat insulating material with a thermal conductivity less than 0.04W/(m.k).

3. A carbon dioxide hydrate fire fighting tanker according to claim 1 or 2, characterized in that the inside of the carbon dioxide hydrate tank body (1) is divided into an aqueous solution (2) and a carbon dioxide gas space (3), the volume ratio between the carbon dioxide gas space (3) and the aqueous solution (2) is 1:4, and the carbon dioxide gas space pressure is maintained at 3-4 Mpa.

4. A carbon dioxide hydrate fire fighting tanker according to claim 3, characterized in that the aqueous solution (2) is a special surfactant-containing solution, which is a 1000ppm sodium dodecyl sulfate solution, characterized in that the sodium dodecyl sulfate solution enables the carbon dioxide hydrate to be more loosely formed, facilitating the storage and release of the carbon dioxide extinguishing medium.

5. The carbon dioxide hydrate fire fighting tanker according to claim 1, 2 or 4, wherein the cryogenic cooling pipeline (4) is connected to the fire fighting truck refrigeration system, the pipeline is made of copper pipes or stainless steel pipes and arranged in the fire fighting truck refrigeration system in a spiral shape, the inner diameter of the pipeline is 8mm, the outer diameter of the pipeline is 10mm, the distance between the upper pipe and the lower pipe is maintained at 50mm, 50 wt% of ethylene glycol solution flows through the pipeline, and the ethylene glycol solution exchanges heat with the fire fighting truck refrigeration system to provide a low temperature environment required for generating the carbon dioxide hydrate.

6. The carbon dioxide hydrate fire fighting tanker according to claim 3, wherein the cryogenic cooling pipeline (4) is connected to the fire fighting truck refrigeration system, the pipeline is made of copper pipes or stainless steel pipes and arranged in the fire fighting truck refrigeration system in a spiral shape, the inner diameter of the pipeline is 8mm, the outer diameter of the pipeline is 10mm, the distance between the upper pipe and the lower pipe is maintained at 50mm, 50 wt% of ethylene glycol solution flows through the pipeline, and the ethylene glycol solution exchanges heat with the fire fighting truck refrigeration system to provide a low temperature environment required for generating the carbon dioxide hydrate.

7. The carbon dioxide hydrate fire fighting tanker according to claim 6, characterized in that the power source (5) is a fire fighting truck body power source and can provide 200W of power, the power source (5) is connected with the metal heat transfer stabbing ball (10), when the power source (5) provides heat for decomposing the carbon dioxide hydrate in the hydrate decomposition stage, the heat transfer of the metal heat transfer stabbing ball (10) enables the carbon dioxide hydrate to be decomposed, the combined metal heat transfer stabbing ball (10) can act in combination with the carbon dioxide air gun (6) at the same time, the carbon dioxide hydrate is decomposed together by controlling the gas safety control valve on the carbon dioxide air gun, and a large amount of carbon dioxide fire extinguishing medium is provided in a short time.

8. A carbon dioxide hydrate fire fighting tanker according to claim 6 or 7, characterized in that the equipment room is divided into a first equipment room (8) and a second equipment room (9), the first equipment room (8) having break-in equipment, reels, water pumps, etc.; the second equipment room (9) is equipped with fire hoses, operation panels and the like, and the first equipment room (8) and the second equipment room (9) are provided with common fire-fighting tools for fire-fighting operation.

9. The carbon dioxide hydrate fire fighting tanker according to claim 6 or 7, the metal heat transfer thorn ball (10) consists of a ball body (11), a ball body connecting rod (12) and a metal thorn (13), the metal heat transfer barbed balls (10) are connected with a power supply (5), the metal barbs (13) distributed on the metal heat transfer barbed balls (10) are uniformly welded on the metal surface in a distributed manner, the structure is a cylinder with the diameter of 5-10mm and the length of 40-200mm, according to the actual situation, 10-30 unequal metal spines (13) can be processed, the radius of a sphere (11) of the metal heat transfer spine is 40-80mm, more metal heat transfer barbed balls (10) can be processed on the metal connecting rod (12) according to the practical application environment, in order to enable the carbon dioxide hydrate to be heated more uniformly, the trend of the metal connecting rod (12) can be adjusted; the power of the power supply (5) can be properly adjusted according to the scale of the actual metal heat transfer barbed ball (10), and the joint of the metal heat transfer barbed ball (10) and the power supply needs to be subjected to waterproof treatment.

10. The carbon dioxide hydrate fire fighting tanker according to claim 8, the metal heat transfer thorn ball (10) consists of a ball body (11), a ball body connecting rod (12) and a metal thorn (13), the metal heat transfer barbed balls (10) are connected with a power supply (5), the metal barbs (13) distributed on the metal heat transfer barbed balls (10) are uniformly welded on the metal surface in a distributed manner, the structure is a cylinder with the diameter of 5-10mm and the length of 40-200mm, according to the actual situation, 10-30 unequal metal spines (13) can be processed, the radius of a sphere (11) of the metal heat transfer spine is 40-80mm, more metal heat transfer barbed balls (10) can be processed on the metal connecting rod (12) according to the practical application environment, in order to enable the carbon dioxide hydrate to be heated more uniformly, the trend of the metal connecting rod (12) can be adjusted; the power of the power supply (5) can be properly adjusted according to the scale of the actual metal heat transfer barbed ball (10), and the joint of the metal heat transfer barbed ball (10) and the power supply needs to be subjected to waterproof treatment.

Technical Field

The invention relates to the technical field of fire trucks, in particular to a carbon dioxide hydrate fire truck capable of being efficiently and continuously applied to fire safety.

Background

In the existing fire-fighting technology, the fire extinguishing medium sprays high-kinetic-energy and high-strength atomized particles by water or fire extinguishing agent in cooperation with unique high-power equipment of a fire truck, and then the aim of extinguishing fire is achieved by isolating flame from external contact. However, the problem of low safety has been accompanied by the upgrading and development of fire truck technology due to the high energy consumption added by high power equipment [ CN306039496S ]. Carbon dioxide Hydrate is used as a phase change product combining water and carbon dioxide, has huge phase change latent heat (398kJ/kg of modernizing and experimental validation of a fluidized bed CO2Hydrate Storage system. http:// dx.doi.org/10.1016/j.aponergy.2015.08.092), and is safely and efficiently sealed in a volume ratio of 1:180 [ Gas Hydrate Production Technology for Natural Gas Storage and Transportation and CO2 sequencing. https:// doi.org/10.2118/93492-MS ], and can be rapidly decomposed after encountering a high-temperature object or fire source, absorb a large amount of heat, generate low-temperature water and carbon dioxide, and both the low-temperature water and the carbon dioxide can further limit the diffusion of fire, so that the fire extinguishing task can be efficiently implemented. Meanwhile, the carbon dioxide hydrate can be decomposed in a pressure reduction mode, the carbon dioxide hydrate is decomposed by adopting the combined mode of pressure reduction and temperature rise, and a set of efficient temperature rise heating device is independently designed for the decomposition of the carbon dioxide hydrate. The carbon dioxide is used as a resource, a simple source working medium is obtained, so that the carbon dioxide hydrate fire-fighting medium perfectly fits the fire truck technology, and the breakthrough of the fire-fighting technology in practical application is realized.

Disclosure of Invention

Aiming at the defects in the prior art, the prior fire fighting truck technology is improved and upgraded, and the invention provides the carbon dioxide hydrate fire fighting tank truck which can effectively realize the application of the carbon dioxide hydrate in the fire fighting field, change the fire fighting mode, improve the fire fighting capacity and protect the environment and the life safety of people.

The technical scheme of the invention is as follows: a carbon dioxide hydrate fire-fighting tank car takes a novel fire-fighting medium, namely carbon dioxide hydrate, as a fire-fighting carrier, and provides better value for the application process of the fire-fighting tank car with high safety, economy and environmental protection, and the fire-fighting tank car comprises a carbon dioxide hydrate tank body, a secondary refrigerant pipeline, a power supply, a carbon dioxide air gun, a water gun, a first equipment room, a second equipment room and a metal heat transfer thorn ball; the carbon dioxide hydrate tank body, the first equipment chamber and the second equipment chamber are independent areas respectively and are assembled and connected with the fire fighting truck body, two parts, namely a water solution and a carbon dioxide gas space, are arranged in the carbon dioxide hydrate tank body, the water solution and the carbon dioxide generate the carbon dioxide hydrate in the cooling environment of a low-temperature secondary refrigerant pipeline, and the low-temperature water and the carbon dioxide gas generated by decomposition under the combined action of heating of the metal heat transfer thorn balls and the control valve of the carbon dioxide gas gun are sprayed out for fire extinguishing through the carbon dioxide gas gun and the water gun; the metal heat transfer barbed ball is composed of a ball body, a ball body connecting rod and a metal barb, all of the metal heat transfer barbed ball are made of copper materials, the metal heat transfer barbed ball is connected with a power supply, the metal heat transfer barbed ball is heated by power supply, and the metal heat transfer barbed ball is connected with the power supply to be subjected to waterproof treatment. The main principle of the invention is that the novel fire extinguishing medium carbon dioxide hydrate is rapidly decomposed by heating and gas release, so that the decomposition product can realize a high-efficiency, convenient and pollution-free fire fighting process.

The carbon dioxide hydrate tank body is made of stainless steel and can bear 5MPa of pressure, the 5MPa of pressure is used for maintaining the stability of the carbon dioxide hydrate in the storage process, and meanwhile, high-pressure gas can be directly used for extinguishing fire in the early stage of the fire fighting process; the upper part and the lower part of the tank body are respectively provided with a carbon dioxide air gun and a water gun, the carbon dioxide air gun is connected with a gas safety control valve, the release speed of carbon dioxide can be regulated and controlled, and the tank body is externally wrapped with a layer of heat-insulating material with the heat conductivity coefficient less than 0.04W/(m.K).

The interior of the carbon dioxide hydrate tank body is divided into an aqueous solution and a carbon dioxide gas space, the volume ratio of the carbon dioxide gas space to the aqueous solution is 1:4, and the carbon dioxide gas space is reserved because the volume change can occur in the carbon dioxide hydrate conversion process and can extrude a refrigerant coil and a metal heat transfer thorn ball in the tank body, so that the extrusion fault of equipment is prevented; wherein the pressure of carbon dioxide gas space is maintained at 3-4 MPa.

The water solution is a special solution containing a surfactant, and the solution is a 1000ppm sodium dodecyl sulfate solution, and is characterized in that the sodium dodecyl sulfate as a surfactant can enable carbon dioxide hydrate to be generated more loosely, so that the carbon dioxide extinguishing medium is stored and released, and the loose carbon dioxide hydrate is beneficial to the circulation of carbon dioxide gas and water solution in the fire fighting process; the lauryl sodium sulfate solution can enable the water solution after the hydrate decomposition to have a certain foaming function, and form mist-shaped particles after being sprayed by a water gun at high pressure, so that large-range fire extinguishment is implemented.

The low-temperature cooling pipeline is connected with a fire engine refrigerating system, the pipeline is made of copper pipes or stainless steel pipes and arranged in a fire-fighting tank body in a spiral shape, the inner diameter of the pipeline is 8mm, the outer diameter of the pipeline is 10mm, the distance between the upper pipe and the lower pipe is maintained to be 50mm, 50 wt% of glycol solution flows in the pipeline, the glycol solution and the fire engine refrigerating system perform heat exchange to provide a low-temperature environment required by generation of carbon dioxide hydrate, the glycol solution in the proportion has high specific heat capacity, and more energy can be stored and exchanged.

The power supply is a fire fighting truck body power supply and can provide 200W of power, the power supply is connected with the metal heat transfer acanthosphere, the power supply provides heat for decomposing the carbon dioxide hydrate in the hydrate decomposition stage, the carbon dioxide hydrate is decomposed through the heat transfer of the metal heat transfer acanthosphere, the gas safety control valve on the carbon dioxide gas gun is controlled to jointly decompose the carbon dioxide hydrate under the action of the metal heat transfer acanthosphere and the carbon dioxide gas gun, and a large amount of carbon dioxide fire extinguishing medium and low-temperature aqueous solution cooling medium are provided in a short time; the carbon dioxide and the low-temperature water solution generated by decomposition can be mixed by a carbon dioxide air gun and a water gun to form a gas-liquid two-phase fire extinguishing material, and the high-efficiency fire fighting operation is implemented.

The equipment chamber is divided into a first equipment chamber and a second equipment chamber, and the first equipment chamber is internally provided with breaking and dismantling equipment, a reel, a water pump and the like; the second equipment room is equipped with a fire hose, an operation instrument panel and the like, and the first equipment room and the second equipment room are provided with common fire-fighting tools for fire-fighting operation.

The metal heat transfer barbed ball consists of a ball body, a ball body connecting rod and metal barbs, all are made of copper materials, the metal heat transfer barbed ball is connected with a power supply, the metal barbs distributed on the metal heat transfer barbed ball are uniformly welded on the surface of a metal, the structure is a cylinder with the diameter of 5-10mm and the length of 40-200mm, 10-30 unequal metal barbs can be machined according to actual conditions, the radius of the ball body of the metal heat transfer barbed ball is 40-80mm, the metal barbs with the size can increase the specific surface area of the whole heating equipment by nearly 20 times, and the heat exchange effect is efficiently improved; in addition, more metal heat transfer barbed balls are processed on the metal connecting rod according to the practical application environment, and the trend of the metal connecting rod can be adjusted in order to enable the carbon dioxide hydrate to be heated more uniformly; the power of the power supply can be properly adjusted according to the scale of the actual metal heat transfer barbed ball, and the joint of the metal heat transfer barbed ball and the power supply needs to be subjected to waterproof treatment.

The invention discloses a carbon dioxide hydrate fire-fighting tank truck, and provides a carbon dioxide hydrate which can be used in a fire-fighting tank truck; the medium has wide source and no pollution; the medium enables carbon dioxide to be stored efficiently and stably, the storage environment is appropriate, the energy and the storage efficiency are high, the rapid release of the carbon dioxide and the efficient utilization of the low-temperature cooling medium can be realized by combining the equipment structure of the fire-fighting tank car, the high efficiency and the economical efficiency of the medium in the fire-fighting tank car are embodied, and the environment-friendly effect is realized.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic diagram of a metal heat transfer acanthosphere structure.

Fig. 3 is a diagram of the cold storage temperature and pressure of carbon dioxide hydrate.

FIG. 4 is a diagram of the temperature and pressure inside the tank body during the fire extinguishing process of the fire tanker.

In the figure: 1, a carbon dioxide hydrate tank body; 2, water solution; 3 a carbon dioxide gas space; 4 a secondary refrigerant pipeline; 5, a power supply; 6, a carbon dioxide air gun; 7, a water gun; 8 a first equipment room; 9 a second equipment chamber; 10 metal heat transfer barbed balls; 11, a sphere; 12 a ball connection; 13 metal pricks.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the embodiments and the accompanying drawings.

As shown in fig. 1, a carbon dioxide hydrate fire tanker comprises a carbon dioxide hydrate tank body, a secondary refrigerant pipeline, a power supply, a carbon dioxide air gun, a water gun, a first equipment chamber, a second equipment chamber and a metal heat transfer thorn ball; the carbon dioxide hydrate tank body and the first equipment chamber and the second equipment chamber are independent areas respectively and are assembled and connected with a fire fighting truck body, a water solution and a carbon dioxide gas space are filled in the carbon dioxide hydrate tank body, the water solution and the carbon dioxide generate the carbon dioxide hydrate in the cooling environment of a low-temperature secondary refrigerant pipeline, low-temperature water and carbon dioxide gas generated by decomposition under the combined action of heating of a metal heat transfer thorn ball and a carbon dioxide gas gun control valve are sprayed out by a carbon dioxide gas gun and a water gun to extinguish fire, the water solution can be a clear water foam extinguishing agent for manufacturing fire-fighting foam liquid, and a fire-fighting foam manufacturing device can be connected to the water gun to upgrade the water gun into a fire-fighting foam gun so as to further enhance the fire-fighting effect; the metal heat transfer barbed ball is composed of a ball body, a ball body connecting rod and a metal barb, the metal heat transfer barbed ball is made of a copper material or a high-heat-conductivity metal material, the metal heat transfer barbed ball is connected with a power supply, the metal heat transfer barbed ball is heated by power supply, and waterproof treatment is carried out on the connection of the metal heat transfer barbed ball and the power supply. The invention utilizes heating and gas release to rapidly decompose the novel fire extinguishing medium carbon dioxide hydrate, so that the decomposition product can realize high efficiency and is convenient for a pollution-free fire fighting process.

Example 1:

when the fire fighting truck works, water solution and carbon dioxide gas which are 80% of the total volume of the tank body are filled in the fire fighting tank body in advance, wherein the water solution can be 1000ppm of lauryl sodium sulfate solution or clear water foam extinguishing agent for preparing fire fighting foam liquid, the tank body of the carbon dioxide hydrate is cooled to 2 ℃ through a refrigeration system of the tank truck, and the carbon dioxide hydrate is generated in the environment. Wherein the molar ratio of water to carbon dioxide is maintained at 1: about 10 (the pressure of the carbon dioxide gas space is maintained at about 4 Mpa), the proportion can ensure that the residual gas space still has high-concentration carbon dioxide gas after the carbon dioxide hydrate is completely prepared, the safe storage of the carbon dioxide hydrate can be ensured, and a main carbon dioxide source can be provided at the initial stage of fire extinguishing. As shown in FIG. 3, the hydrate cold storage process is performed after carbon dioxide with a pressure of 3.5MPa is filled, and after the process is finished, the pressure can be maintained at 1.7MPa and the temperature is 2.1 ℃. Meanwhile, the tank body is covered with a heat-insulating layer, so that the carbon dioxide hydrate is prevented from being decomposed in advance. In the fire extinguishing process, a carbon dioxide air gun is opened to release carbon dioxide gas in a tank body, and when the pressure of an upper space is lower than a phase equilibrium point of carbon dioxide hydrate (2 ℃, 1.63MPa [ Review on CO2hydrate formation/distribution and bits condensation application. http:// dx.doi.org/10.1016/j.rser.2016.04.062]), the carbon dioxide hydrate begins to decompose. As shown in fig. 4, when the gas control valve is opened, the pressure gas in the tank body is discharged to extinguish fire, and the pressure and the temperature of the tank body drop sharply at the moment; then regulating and controlling a carbon dioxide air gun valve to control the discharge speed of carbon dioxide, so that the pressure in the tank body is controlled to be about 1MPa, the continuous output of carbon dioxide can be maintained under the pressure for fire extinguishing, and the phenomenon that the gas valve is blocked due to icing caused by too low temperature of the tank body due to too fast pressure reduction can be ensured; after the carbon dioxide gas is released, a large amount of low-temperature liquid is left in the tank body, the low-temperature liquid can be used for secondary fire extinguishing through a water gun, the fire extinguishing process lasts for about 25 minutes, and the tank has the characteristic of high efficiency and persistence; the air gun and the water gun can simultaneously extinguish fire in the fire extinguishing process. In addition, if need reach fire extinguishing effect sooner, can turn on the power, heat metal heat transfer thorn ball and realize rising temperature and step down and unite the decomposition mode, realize the quick release of carbon dioxide, open the water gun device simultaneously and erupt the aqueous solution that has low temperature and high momentum, realize carbon dioxide hydrate's high-efficient fire extinguishing process.

Example 2:

the carbon dioxide hydrate tank body can also be filled with carbon dioxide hydrate particles, the diameter of the particles can be maintained at 1-2cm, the preparation of the carbon dioxide hydrate particles can be carried out in special places which meet the preparation conditions, the hydrate particles are filled into the tank body with the filling volume of about 80 percent before the fire-fighting task, carbon dioxide gas with the pressure of about 3-4MPa is filled, and the hydrate is prevented from being decomposed under the action of the heat-insulating layer. When carrying out the fire control task, the fire engine is gone to in the scene of an accident, utilize engine waste heat and metal heat transfer thorn ball to carry out a small amount of decompositions of hydrate, open heating power after the fire engine reaches the scene, the heat reaches the internal quick decomposition of hydrate of metal tank through metal heat transfer thorn ball, then open the carbon dioxide air gun, when aiming at the fire source and putting out a fire, reduce the pressure of the fire-fighting tank body, the decomposition of the hydrate of the fire-fighting tank body further accelerates, when treating that the air gun can't provide the required carbon dioxide of fire control, open the squirt and make the decomposition water or hydrate slurry spout from the squirt, carry out the fire extinguishing of second round. In addition, the water gun can be replaced by a foam gun, because the water solution for preparing the carbon dioxide hydrate is a fire extinguishing agent for preparing the fire extinguishing foam, the foam can be prepared by an additionally added foam preparation machine after the hydrate is decomposed, and the foam can be sprayed out from the foam gun to achieve the effect of efficiently extinguishing fire.