阅读说明：本技术 一种用于气固复合灭火剂的制备及充填施放一体化装置 (Preparation, filling and discharging integrated device for gas-solid composite fire extinguishing agent ) 是由 张和平 邢浩然 陆松 程元 于 2021-07-09 设计创作，主要内容包括：本发明公开了一种用于气固复合灭火剂的制备及充填施放一体化装置,包括相连的灭火剂制备单元、灭火剂装填单元,灭火剂施放单元；所述的灭火剂制备单元包括反应器,所述反应器的上端面从左至右依次设置有驱动气体口、灭火剂施放口、进料口、灭火剂装填口,所述的反应器的上端设有温度、压力采集接口,所述反应器的外部设置有加热模块；所述的灭火剂装填单元包括灭火剂装填管路；所述的灭火剂施放单元包括驱动气体管路,灭火剂施放管路。通过此装置,可以实现不同种类的气固复合灭火剂的制备及灭火剂充填与施放过程的一体化,操作简便,并可实现气固复合灭火剂制备、充填和施放的条件优选。(The invention discloses a preparation, filling and discharge integrated device for a gas-solid composite fire extinguishing agent, which comprises a fire extinguishing agent preparation unit, a fire extinguishing agent filling unit and a fire extinguishing agent discharge unit which are connected; the fire extinguishing agent preparation unit comprises a reactor, wherein a driving gas port, a fire extinguishing agent applying port, a feeding port and a fire extinguishing agent filling port are sequentially arranged on the upper end surface of the reactor from left to right, a temperature and pressure acquisition interface is arranged at the upper end of the reactor, and a heating module is arranged outside the reactor; the fire extinguishing agent filling unit comprises a fire extinguishing agent filling pipeline; the fire extinguishing agent discharging unit comprises a driving gas pipeline and a fire extinguishing agent discharging pipeline. The device can realize the preparation of different kinds of gas-solid composite extinguishing agents and the integration of the processes of filling and discharging the extinguishing agents, is simple and convenient to operate, and can realize the optimal conditions of the preparation, filling and discharging of the gas-solid composite extinguishing agents.)

1. A preparation and filling discharge integrated device for a gas-solid composite fire extinguishing agent is characterized in that: comprises a fire extinguishing agent preparation unit, a fire extinguishing agent filling unit and a fire extinguishing agent discharge unit which are connected;

the fire extinguishing agent preparation unit comprises a reactor, wherein a driving gas port, a fire extinguishing agent applying port, a feeding port and a fire extinguishing agent filling port are sequentially arranged on the upper end face of the reactor from left to right, a temperature and pressure acquisition interface is arranged at the upper end of the reactor, and a heating module is arranged outside the reactor;

the fire extinguishing agent filling unit comprises a fire extinguishing agent filling pipeline (8), a three-way joint (4) is connected to the fire extinguishing agent filling pipeline (8), the right end of the three-way joint (4) is connected with a vacuum pump (6) through a pipeline, a first stop valve (5-a) is arranged between the three-way joint and the vacuum pump, the lower end of the three-way joint (4) is connected with a fire extinguishing agent supply pipeline (7), and a second stop valve (5-b) is arranged between the three-way joint and the fire extinguishing agent supply pipeline;

the fire extinguishing agent discharging unit comprises a driving gas pipeline (9), a fire extinguishing agent discharging pipeline (10) and a fifth stop valve (5-e) and a fourth stop valve (5-d) which are respectively arranged on the fire extinguishing agent discharging pipeline;

the reactor driving gas port is connected with a driving gas pipeline (9), the reactor fire extinguishing agent discharging port is connected with a fire extinguishing agent discharging pipeline (10), and the reactor fire extinguishing agent filling port is connected with a fire extinguishing agent filling pipeline (8).

2. The apparatus according to claim 1, wherein the reactor is a pressure-resistant vessel (1); preferably, the pressure-resistant container (1) is a cylinder and can resist the pressure of 10 MPa.

3. The apparatus according to claim 1, wherein the heating module is a heating tape (2) wrapped outside the pressure-resistant container (1); preferably, the heating belt (2) can be heated to 300 ℃.

4. The apparatus according to claim 1, characterized in that the reactor inlet is connected to a feed pipe (3) provided with a third shut-off valve (5-c) for powder.

5. The apparatus according to claim 1, wherein the reactor feed pipe (3) is adapted to convey a solid feedstock; preferably, the feeding pipe (3) can be used for conveying ABC, BC dry powder extinguishing agent, silica, zeolite, molecular sieve, mica or montmorillonite.

6. The device according to claim 1, characterized in that the extinguishing agent supply line (7) is adapted to deliver extinguishing agent in liquid or gaseous form at ambient temperature; preferably, the fire extinguishing agent supply line (7) can deliver perfluorohexanone, perfluoropentanone, 2-BTP, water, heptafluoropropane, hexafluoropropane or pentafluoroethane.

7. The device according to claim 1, characterized in that the temperature and pressure collecting interfaces at the upper end of the reactor are respectively connected with a thermometer (11) and a pressure gauge (12), and the height of a temperature probe of the thermometer (11) in the pressure-resistant container (1) is variable; preferably, the temperature probe of the thermometer (11) is located at the middle height of the reactor.

8. The device according to claim 1, characterized in that the drive gas line (9) is adapted to deliver a drive gas; preferably, the driving gas line (9) can deliver nitrogen, carbon dioxide or air.

9. The device according to claim 1, characterized in that the driving gas line (9), the fire extinguishing agent dispensing line (10), the feeding pipe (3), the fire extinguishing agent filling line (8), the fire extinguishing agent supply line (7), the first stop valve (5-a), the second stop valve (5-b), the third stop valve (5-c), the fourth stop valve (5-d), and the fifth stop valve (5-e) are pressure-resistant and corrosion-resistant devices; preferably, the driving gas pipeline (9), the fire extinguishing agent discharging pipeline (10), the feeding pipe (3), the fire extinguishing agent filling pipeline (8), the fire extinguishing agent supplying pipeline (7), the first stop valve (5-a), the second stop valve (5-b), the third stop valve (5-c), the fourth stop valve (5-d) and the fifth stop valve (5-e) can resist pressure of 10 MPa.

10. The apparatus according to claim 2, wherein the pressure-resistant vessel (1) is used for preparing, storing and driving a gas-solid fire extinguishing agent filling vessel.

Technical Field

The invention relates to the field of preparation of gas-solid extinguishing agents, in particular to a preparation, filling and discharging integrated device for a gas-solid composite extinguishing agent.

Background

Powder-based extinguishing agents and gas extinguishing agents are two main types of extinguishing agents commonly used in the field of fire fighting at present. Powder-based fire extinguishing agents such as ABC dry powder, BC dry powder and ultrafine modified dry powder fire extinguishing agents thereof are widely applied to extinguishing various types of fires such as solid, liquid, electric and the like due to the advantages of environmental friendliness, low price, easiness in storage and the like. The dry powder extinguishing agent is mainly used for extinguishing fire by diluting and isolating oxygen through the dry powder extinguishing agent and thermal decomposition products, is assisted by partial free radical quenching reaction, and has better extinguishing efficiency for solid deep fire. But the dry powder fire extinguishing agent has poor heat absorption effect in the fire extinguishing process and low reaction efficiency of quenching free radicals, so that the fire extinguishing efficiency is low. The gas fire extinguishing agent comprises Halon fire extinguishing agents such as Halon 1301 and 1211, hydrofluorocarbon Halon replacement fire extinguishing agents such as pentafluoroethane, hexafluoropropane and heptafluoropropane, environment-friendly high-boiling-point Halon replacement fire extinguishing agents (liquid at normal temperature) such as perfluorohexanone and 2-BTP, and fire extinguishing is realized by mainly quenching combustion free radical chain reaction and absorbing heat in a fire field. Because the gas fire extinguishing agent meets the flame, the concentration of the fire extinguishing agent reaching the root of the flame is relatively limited due to the buoyancy of fire smoke and the self thermal decomposition, and the influence on the fire extinguishing efficiency of the solid deep fire is relatively large; meanwhile, the final product of the radical quenching reaction of the chemical gas fire extinguishing agent is mainly corrosive and toxic gas, and further potential harm is caused to personnel and equipment in the environment. The inherent defects of powder-based fire extinguishing agents and gas fire extinguishing agents limit the application of the powder-based fire extinguishing agents and the gas fire extinguishing agents in the field of fire fighting.

The gas-solid composite fire extinguishing agent is a novel fire extinguishing agent and is prepared according to Sraggs (Assembly of the fire suppression mechanisms for HFC-227ea combined with NaHCO3[ C [)]//Proceedings of the 12th Halon Options Technical Working Conference,HOTWC.2002:1-11.12^thProceedings of halo Options Technical Working conference, Albuquerque, New Mexico,2002:1-11.), Ni, etc. (Experimental study of New gas-solid composite particles in extreme viewing book oil, J]Journal of fire sciences,2011,29(2): 152-176) discloses that a gas-solid composite fire extinguishing agent can integrate the synergistic advantages of gas and powder fire extinguishing agents, and can better overcome the inherent defects existing in the fire extinguishing agent and play a better fire extinguishing effect compared with a single type of fire extinguishing agent. However, the above reports and similar chinese patents CN101417166B and CN103877693A are only intended to describe the preparation formulation of specific gas-solid composite fire extinguishing agent, and no report is made on the general device for preparing gas-solid fire extinguishing agent. Further, an important criterion for evaluating fire extinguishing agents is the extinguishing effect of the fire extinguishing agent. Generally, the preparation is completed by filling the fire extinguishing tank with a driving gas, pressurizing the driving gas and applying the driving gas to a fire scene under pressure. The filling and releasing processes of the existing gas-solid fire extinguishing agent laboratory preparation are usually separated, the preparation device needs to be disassembled after the fire extinguishing agent preparation is completed, the prepared fire extinguishing agent is taken out and then transferred into a fire extinguishing agent filling tank, then the filling and releasing of driving gas are carried out to evaluate the fire extinguishing effect of the fire extinguishing agent, the operation is complicated, and the loss of materials is easily caused in the transferring process. Meanwhile, the device needs to be set up again and the steps need to be repeated in the next fire extinguishing agent preparation and discharge process, so that the large-scale preparation of the gas-solid fire extinguishing agent and the fire extinguishing evaluation application in the research and development stage cannot be realized quickly, and the optimal experimental conditions in the whole gas-solid fire extinguishing agent preparation, filling and discharge process cannot be realized conveniently.

Therefore, the device for integrating the preparation, filling and discharge of the gas-solid composite extinguishing agent is designed, the problems can be solved, the operation can be greatly simplified, the integration of the preparation, filling and discharge processes of different types of gas-solid composite extinguishing agents can be realized, the optimal conditions for the preparation, filling and discharge of the gas-solid composite extinguishing agent can be realized, and the efficiency for evaluating the fire extinguishing characteristics of the novel extinguishing agent is greatly improved.

Disclosure of Invention

In order to solve the defects of the fire extinguishing agent and the problems in practical application, the invention provides an integrated device for preparing, filling and discharging a gas-solid composite fire extinguishing agent.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a preparation and filling discharge integrated device for a gas-solid composite fire extinguishing agent is characterized in that: comprises a fire extinguishing agent preparation unit, a fire extinguishing agent filling unit and a fire extinguishing agent discharge unit which are connected;

the fire extinguishing agent preparation unit comprises a reactor, wherein a driving gas port, a fire extinguishing agent applying port, a feeding port and a fire extinguishing agent filling port are sequentially arranged on the upper end face of the reactor from left to right, a temperature and pressure acquisition interface is arranged at the upper end of the reactor, and a heating module is arranged outside the reactor;

the fire extinguishing agent filling unit comprises a fire extinguishing agent filling pipeline 8, the fire extinguishing agent filling pipeline 8 is connected with a three-way joint 4, the right end of the three-way joint 4 is connected with a vacuum pump 6 through a pipeline, a first stop valve 5-a is arranged between the three-way joint 4 and the vacuum pump, the lower end of the three-way joint 4 is connected with a fire extinguishing agent supply pipeline 7, and a second stop valve 5-b is arranged between the three-way joint 4 and the fire extinguishing agent supply pipeline 7;

the fire extinguishing agent discharging unit comprises a driving gas pipeline 9 and a fire extinguishing agent discharging pipeline 10, wherein a fifth stop valve 5-e and a fourth stop valve 5-d are respectively arranged on the fire extinguishing agent discharging pipeline;

the reactor driving gas port is connected with a driving gas pipeline 9, the reactor fire extinguishing agent discharging port is connected with a fire extinguishing agent discharging pipeline 10, and the reactor fire extinguishing agent filling port is connected with a fire extinguishing agent filling pipeline 8.

Further, the reactor is a pressure-resistant container 1; preferably, the pressure-resistant vessel 1 is a cylinder, and can resist pressure of 10 MPa.

Furthermore, the heating module is a heating belt 2 wrapped outside the pressure-resistant container 1; preferably, the heating belt 2 may be heated to 300 ℃.

Furthermore, the feed inlet of the reactor is connected with a feed pipe 3, and a third stop valve 5-c suitable for powder is arranged on the feed inlet.

Further, the reactor feeding pipe 3 can convey solid raw materials; preferably, the feed pipe 3 can deliver ABC, BC class dry powder extinguishing agents, silica, zeolite, molecular sieve, mica or montmorillonite.

Further, the fire extinguishing agent supply pipeline 7 can convey a fire extinguishing agent which is liquid or gaseous at normal temperature; preferably, the fire extinguishing agent supply line 7 can deliver perfluorohexanone, perfluoropentanone, 2-BTP, water, heptafluoropropane, hexafluoropropane or pentafluoroethane.

Furthermore, a temperature and pressure acquisition interface at the upper end of the reactor is respectively connected with a thermometer 11 and a pressure gauge 12, and the height of a temperature probe of the thermometer 11 in the pressure-resistant container 1 is variable; preferably, the temperature probe of the thermometer 11 is located at the middle height of the reactor.

Further, the driving gas pipeline 9 can convey driving gas; preferably, the driving gas line 9 can deliver nitrogen, carbon dioxide or air.

Furthermore, the driving gas pipeline 9, the fire extinguishing agent discharging pipeline 10, the feeding pipe 3, the fire extinguishing agent filling pipeline 8, the fire extinguishing agent supply pipeline 7, the first stop valve 5-a, the second stop valve 5-b, the third stop valve 5-c, the fourth stop valve 5-d and the fifth stop valve 5-e are pressure-resistant corrosion-resistant devices; preferably, the driving gas line 9, the fire extinguishing agent discharging line 10, the feeding pipe 3, the fire extinguishing agent charging line 8, the fire extinguishing agent supplying line 7, the first stop valve 5-a, the second stop valve 5-b, the third stop valve 5-c, the fourth stop valve 5-d, and the fifth stop valve 5-e can withstand a pressure of 10 MPa.

Further, the pressure-resistant container 1 is used for preparing, storing and driving a gas filling container for gas-solid fire extinguishing agents.

In particular, the present invention is realized by:

a preparation and fire extinguishing agent filling and discharging integrated device for a gas-solid composite fire extinguishing agent comprises a pressure container 1, a heating belt 2, a feeding pipe 3, a three-way joint 4, a first stop valve 5-a, a second stop valve 5-b, a third stop valve 5-c, a fourth stop valve 5-d, a fifth stop valve 5-e, a vacuum pump 6, a fire extinguishing agent supply pipeline 7, a fire extinguishing agent filling pipeline 8, a driving gas pipeline 9, a fire extinguishing agent discharging pipeline 10, a thermometer 11 and a pressure gauge 12; the pressure-resistant container 1 is a cylindrical container;

the fire extinguishing agent filling device is characterized in that a heating belt 2 wraps the pressure container 1, a thermometer 11 and a pressure gauge 12 are arranged on the pressure container 1, the position of a temperature probe of the thermometer 11 is adjustable in height in the pressure container 1, a feed pipe 3, a fire extinguishing agent filling pipeline 8, a driving gas pipeline 9 and a fire extinguishing agent discharging pipeline 10 are connected with the upper end of the pressure container 1, a third stop valve 5-c, a fifth stop valve 5-e and a fourth stop valve 5-d are respectively arranged on the feed pipe 3, the driving gas pipeline 9 and the fire extinguishing agent discharging pipeline 10, the fire extinguishing agent filling pipeline 8 is connected with a vacuum pump 6 and a fire extinguishing agent supply pipeline 7 through a three-way joint 4, a first stop valve 5-a is arranged between the three-way joint 4 and the vacuum pump 6, and a second stop valve 5-b is arranged on the fire extinguishing agent supply pipeline 7; wherein:

the pressure container 1 is used as a reactor for preparing the gas-solid composite extinguishing agent and is used for preparing, storing and driving gas to fill the gas-solid extinguishing agent;

the heating belt 2 is used for providing temperature conditions in the pressure-resistant container 1;

the feeding pipe 3 is used for supplying solid raw materials, and a third stop valve 5-c arranged on the feeding pipe 3 is used for controlling the opening and closing of the feeding pipe 3;

the three-way joint 4 is used for connecting a vacuum pump 6 and a fire extinguishing agent supply pipeline 7;

the first stop valve 5-a is used for controlling the communication between the vacuum pump 6 and the fire extinguishing agent filling pipeline 8, and the second stop valve 5-b is used for controlling the on-off of the fire extinguishing agent supply pipeline 7;

the vacuum pump 6 is used for pumping gas in the reactor and providing vacuum conditions;

the fire extinguishing agent supply pipeline 7 is used for supplying fire extinguishing agent;

the fire extinguishing agent filling pipeline 8 is used for connecting the fire extinguishing agent supply pipeline 7 and the vacuum pump 6 with the pressure container 1;

the driving gas pipeline 9 is used for supplying driving gas filled with fire extinguishing agent, and a fifth stop valve 5-e is arranged on the driving gas pipeline 9 and used for controlling the opening and closing of the driving gas pipeline;

the fire extinguishing agent discharging pipeline 10 is used for discharging the fire extinguishing agent and the driving gas filled in the pressure container 1, and the fourth stop valve 5-d is installed on the fire extinguishing agent discharging pipeline 10 and used for controlling the opening and closing of the driving gas pipeline;

the thermometer 11 is used for monitoring the temperature in the reactor, and the pressure gauge 12 is used for monitoring the pressure in the reactor.

Compared with the existing experimental device, the invention has the following advantages:

1. can realize the rapid and integrated convenient preparation of different kinds of gas-solid composite extinguishing agents and the screening and optimization of preparation conditions.

2. The filling and the releasing of different kinds of fire extinguishing agents under different driving gas filling pressures can be realized;

3. the thermal response characteristic test of different kinds of fire extinguishing agents can be realized;

4. the integrated process of preparation, filling and discharge of the fire extinguishing agent can be realized without dismounting the gas-solid composite fire extinguishing agent transferred by a dismounting device, the product integration degree is high, and the operation is simple and convenient.

Drawings

FIG. 1 is a schematic structural view of an integrated device for preparing a gas-solid composite fire extinguishing agent and filling and discharging the fire extinguishing agent.

Fig. 2 is a schematic view of the position of the device from a top view.

In the figure, 1 a pressure container, 2 a heating belt, 3a feeding pipe, 4 three-way joints, 5-a first stop valve, 5-b a second stop valve, 5-c a third stop valve, 5-d a fourth stop valve, 5-e a fifth stop valve, 6 a vacuum pump, 7 a fire extinguishing agent supply pipeline, 8 a fire extinguishing agent filling pipeline, 9 a driving gas pipeline, 10 a fire extinguishing agent discharging pipeline, 11 thermometers and 12 pressure gauges are arranged.

Detailed Description

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

FIG. 1 is a schematic structural view of an integrated device for preparing a gas-solid composite fire extinguishing agent and filling and discharging the fire extinguishing agent. Fig. 2 is a schematic view of the position of the device from a top view. As shown in figure 1, the preparation and fire extinguishing agent filling and discharging integrated device for the gas-solid composite fire extinguishing agent comprises a pressure vessel 1, a heating belt 2, a feeding pipe 3, a three-way joint 4, a first stop valve 5-a, a second stop valve 5-b, a third stop valve 5-c, a fourth stop valve 5-d, a fifth stop valve 5-e, a vacuum pump 6, a fire extinguishing agent supply pipeline 7, a fire extinguishing agent filling pipeline 8, a driving gas pipeline 9, a fire extinguishing agent discharging pipeline 10, a thermometer 11 and a pressure gauge 12; the pressure resistant vessel 1 used in this embodiment is a column vessel. The parts form a set of device through mechanical connection, welding, glue connection and the like.

The fire extinguishing agent filling device is characterized in that a heating belt 2 is wound outside a pressure container 1, a thermometer 11 and a pressure gauge 12 are installed on the pressure container 1, the height of a temperature probe of the thermometer 11 in the pressure container 1 is variable, a feeding pipe 3, a fire extinguishing agent filling pipeline 8, a driving gas pipeline 9, a fire extinguishing agent discharging pipeline 10 are connected with an upper end opening of the pressure container 1 in a mechanical clamping sleeve connection mode, a third stop valve 5-c, a fifth stop valve 5-e and a fourth stop valve 5-d are installed on the feeding pipe 3, the driving gas pipeline 9 and the fire extinguishing agent discharging pipeline 10 respectively, the fire extinguishing agent filling pipeline 8 is mechanically connected with a vacuum pump 6 and a fire extinguishing agent supply pipeline 7 through a three-way joint 4, a first stop valve 5-a is installed between the three-way joint 4 and the vacuum pump 6, and a second stop valve 5-b is installed on the fire extinguishing agent supply pipeline 7;

in this embodiment, the pressure vessel 1, the driving gas line 9, the fire extinguishing agent discharging line 10, the feed pipe 3, the fire extinguishing agent charging line 8, the fire extinguishing agent supply line 7, the first stop valve 5-a, the second stop valve 5-b, the third stop valve 5-c, the fourth stop valve 5-d, and the fifth stop valve 5-e are made of 316 type corrosion resistant stainless steel and can withstand a pressure of 10 Mpa.

In the embodiment, the heating belt 2 is a flame-retardant and anti-corrosion stainless steel armored heating belt, and the heating temperature range is 0-300 ℃.

In the embodiment, the thermometer 11 is a K-type armored thermocouple type temperature sensor with fixed external threads, the thermometer 11 is connected with a temperature acquisition interface of the pressure-resistant container 1 in a threaded connection mode, sealant is coated between threads, a probe of the thermometer 11 is made of corrosion-resistant 316L stainless steel, the diameter of the probe is 0.5cm, the length of the probe can extend into the middle of the pressure-resistant container 1, and the temperature monitoring range is 0-800 ℃.

In the embodiment, the pressure gauge 12 is a mechanical pressure gauge with fixed external threads, the pressure gauge 12 is connected with a pressure acquisition interface of the pressure container 1 in a threaded connection mode, sealant is coated between threads, the pressure gauge 12 is made of corrosion-resistant 316 stainless steel, the working temperature is-40-400 ℃, and the pressure measuring range is-0.1-6 Mpa.

In this embodiment, the driving gas is high-purity nitrogen, and enters the pressure-resistant container 1 through the driving gas pipeline 9 and the fifth stop valve 5-e, and the fifth stop valve 5-e can control the entrance and exit of the driving gas.

In this embodiment, the solid material is zeolite, and enters the pressure vessel 1 through the feed pipe 3 and the third stop valve 5-c, and the third stop valve 5-c can control the entry of the solid material.

In this embodiment, the fire extinguishing agent is perfluorohexanone liquid at normal temperature, and enters the pressure-resistant container 1 through a fire extinguishing agent supply pipeline 7, a second stop valve 5-b, a three-way joint 4 and a fire extinguishing agent filling pipeline 8.

In the embodiment, the vacuum pump 6 is an oil pump, the gas in the pressure vessel 1 can be pumped out, and the pumping process can be controlled by the first stop valve 5-a and the vacuum pump 6;

when the integrated device for preparing the gas-solid composite fire extinguishing agent and filling and discharging the fire extinguishing agent is used, the operation is as follows:

1. and (6) checking the device. Before the solid raw material is loaded, all the stop valves, namely the first stop valve 5-a, the second stop valve 5-b, the third stop valve 5-c, the fourth stop valve 5-d and the fifth stop valve 5-e are closed, and the vacuum pump 6 is closed.

2. And (4) loading and pretreating the solid raw material. Opening the third stop valve 5-c, filling a certain amount of solid raw material zeolite into the pressure-resistant container 1, and then closing the third stop valve 5-c; starting the heating belt 2, setting the heating temperature to be 200 ℃, starting the vacuum pump 6, opening the first stop valve 5-a, carrying out vacuum activation operation on the solid raw material zeolite for 2 hours, and removing the external gas adsorbed on the front surface of the pressure-resistant container 1 added with the solid; the stop valve 5-a is closed and the vacuum pump 6 is turned off.

3. Filling fire extinguishing agent and preparing gas-solid fire extinguishing agent. The temperature of the heating belt 2 is set to be higher than the boiling point (49 ℃ under 0.1 MPa) of the liquid fire extinguishing agent perfluorohexanone, although the boiling point of the liquid fire extinguishing agent can be reduced under the low-pressure condition, in order to ensure that the liquid fire extinguishing agent is completely gasified, the temperature of the heating belt 2 is preferably set to be 60-100 ℃; after the reading number of the observation thermometer 11 is stabilized to a set value, opening a second stop valve 5-b, sucking a certain amount of liquid fire extinguishing agent perfluorohexanone into the pressure resistant container 1 immediately under the vacuum action of the pressure resistant container 1, and closing the second stop valve 5-b; keeping the heating temperature, and standing for more than 12 hours; the heating belt 2 was turned off, and the reading of the thermometer 11 was observed to decrease to room temperature.

4. Driving the filling of the gas. Opening the fifth stop valve 5-e, filling high-purity nitrogen, observing the reading of the pressure gauge 12 to the target filling pressure, and closing the fifth stop valve 5-e;

5. and (5) applying a fire extinguishing agent. And opening the fourth stop valve 5-d, and spraying the prepared gas-solid composite fire extinguishing agent from the pressure container 1 through the fire extinguishing agent discharge pipeline 10.

In the embodiment, the preparation of different kinds of gas-solid composite fire extinguishing agents can be realized by supplying different kinds of gas or liquid fire extinguishing agents through the fire extinguishing agent supply pipeline 7 and supplying different solid raw materials through the feed pipe 3.

In the embodiment, the screening optimization of the preparation conditions of the gas-solid composite extinguishing agent can be realized by changing the raw materials of the gas-solid composite extinguishing agent, the heating temperature of the heating belt 2, the preparation time of the gas-solid composite extinguishing agent and the vacuumizing time of the vacuum pump 6.

In the embodiment, the filling and discharging of different kinds of fire extinguishing agents under different filling pressures of driving gas can be realized through a feeding pipe 3, a third stop valve 5-c, a vacuum pump 6, a first stop valve 5-a, a fire extinguishing agent supply pipeline 7, a second stop valve 5-b, a three-way joint 4, a fire extinguishing agent filling pipeline 8, a driving gas pipeline 9, a fifth stop valve 5-e, a fire extinguishing agent discharging pipeline 10 and a fourth stop valve 5-d. The filling and discharging processes of the prepared gas-solid composite fire extinguishing agent are as described in the above operation steps. Meanwhile, the device can also realize the filling and the discharge of the single solid extinguishing agent and the liquid or gas extinguishing agent. For the solid fire extinguishing agent, the third stop valve is closed after the solid fire extinguishing agent enters the pressure-resistant container 1 from the feeding pipe 3 by opening the third stop valve 5-c, the vacuum pump 6 is opened, the first stop valve 5-a is opened, when the indication number of the pressure gauge 12 shows that the pressure of the pressure-resistant container 1 is close to the vacuum, the first stop valve 5-a is closed, the vacuum pump 6 is closed, the fifth stop valve 5-e is opened, the driving gas is supplied into the pressure-resistant container 1 through the driving gas supply pipeline 9, the pressure gauge 12 is observed, when the target filling pressure is reached, the fifth stop valve 5-e is closed, and the fourth stop valve 5-d is opened, so that the filling and the releasing of the solid fire extinguishing agent under different filling pressures can be realized; for liquid or gas fire extinguishing agent, the vacuum pump 6 and the first stop valve 5-a are started, when the indication number of the pressure gauge 12 shows that the pressure of the pressure container 1 is close to the vacuum, the first stop valve 5-a is closed, the vacuum pump 6 is closed, the second stop valve 5-b is opened, a certain amount of liquid or gas fire extinguishing agent passes through the three-way joint 4, the fire extinguishing agent filling pipeline 8 is introduced into the pressure container 1, the second stop valve 5-b is closed, the fifth stop valve 5-e is opened, driving gas is supplied into the pressure container 1 through the driving gas supply pipeline, the pressure gauge 12 is observed, when the target filling pressure is reached, the fifth stop valve 5-e is closed, and the fourth stop valve 5-d is opened, so that the filling and discharging of the liquid and gas fire extinguishing agent under different filling pressures can be realized.

In the embodiment, the thermal response characteristics of different kinds of fire extinguishing agents can be tested by compounding a plurality of fire extinguishing agents of gas, liquid, solid and gas-solid filled in the pressure container 1, and observing the change of the readings of the thermometer 11 and the pressure gauge 12 by changing the temperature of the heating belt 2.

While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that the foregoing and other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.