Solid-phase fire extinguishing agent fire extinguishing test device and test method

Abstract

The invention discloses a solid-phase fire extinguishing agent fire extinguishing test device and a solid-phase fire extinguishing agent fire extinguishing test method, and relates to the technical field of fire extinguishing efficiency evaluation of fire extinguishing agents. The solid-phase fire extinguishing agent fire extinguishing test device comprises a rectifying chamber, a cup type combustor, a quartz tube, a conveying structure and a gas cylinder; the quartz tube is arranged on the outer side of the cup-type burner in a sleeving mode, the upper end of the cup-type burner and the upper end of the quartz tube are open, the lower end of the quartz tube is connected with the rectifying chamber, and the conveying structure is connected with the rectifying chamber and the gas cylinder. And gas in the gas cylinder is used for conveying the solid-phase fire extinguishing agent in the conveying structure into the quartz tube. According to the fire extinguishing test device for the solid-phase fire extinguishing agent, the solid-phase fire extinguishing agent can be tested.

Description

Technical Field

[0001] The invention relates to the technical field of fire extinguishing agent fire extinguishing efficiency evaluation, and in particular to a solid phase fire extinguishing agent fire extinguishing test device and a test method. Background Art

[0002] The cup burner test is a classic method used in the fire protection field to determine the minimum extinguishing concentration of gaseous fire extinguishing agents. Since the elimination of halon fire extinguishing agents, the fire protection field has been committed to exploring and researching new fire extinguishing agents. Halon substitutes have experienced the development of different phases. This transformation has posed new challenges to the fire extinguishing effectiveness evaluation technology, prompting the cup burner test system to be improved accordingly. At the same time, the fire extinguishing performance evaluation research based on the cup burner test system is also expanding. However, due to the particularity of the physical state of solid phase fire extinguishing agents, how to test solid phase fire extinguishing agents has always been a difficult problem to solve. Summary of the invention

[0003] The purpose of the present invention is to provide a solid phase fire extinguishing agent fire extinguishing test device and test method to solve the problems existing in the above-mentioned prior art and to realize the testing of solid phase fire extinguishing agent.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a solid-phase fire extinguishing agent fire extinguishing test device, comprising: a rectifying chamber, a cup burner, a quartz tube, a conveying structure and a gas cylinder, wherein the lower end of the cup burner is used for introducing fuel, the quartz tube is sleeved on the outer side of the cup burner, the upper end of the cup burner and the upper end of the quartz tube are both opened, the lower end of the quartz tube is connected to the rectifying chamber, the conveying structure is respectively connected to the rectifying chamber and the gas cylinder, and the gas in the gas cylinder is used for conveying the solid-phase fire extinguishing agent in the conveying structure to the quartz tube.

[0006] Preferably, the cup mouth at the upper end of the cup-type burner is lower than the upper end of the quartz tube; the rectifying chamber, the cup-type burner and the quartz tube are coaxially arranged, and a conveying port is provided at the bottom of the rectifying chamber, and the conveying port is coaxially arranged with the rectifying chamber, and the conveying port is used to connect with the conveying structure.

[0007] Preferably, it further comprises a fuel storage structure for storing fuel, and the fuel storage structure is connected to the cup burner through a fuel pipeline.

[0008] Preferably, the conveying structure includes a bracket and a powder storage hopper, the powder storage hopper is arranged on the bracket, a discharge port is opened at the lower part of the side wall of the powder storage hopper, the discharge port is used to be connected to the rectification chamber through a conveying pipeline, and a discharge baffle is provided at the discharge port, and the size of the discharge port can be adjusted by adjusting the position of the discharge baffle.

[0009] Preferably, the conveying structure also includes a discharging turntable, a driving structure and a material diverting structure, the discharging turntable, the driving structure and the material diverting structure are all arranged on the bracket, the discharging turntable is located below the powder storage hopper, the upper surface of the discharging turntable is a rough surface, the driving structure is used to drive the discharging turntable to rotate, and the material diverting structure is used to transport the solid-phase fire extinguishing agent on the discharging turntable to the quartz tube.

[0010] Preferably, the material diverting structure includes a material diverting plate, and the gap between the material diverting plate and the material discharging turntable can be adjusted. As the material discharging turntable rotates, the material diverting plate can divert the solid-phase fire extinguishing agent on the material discharging turntable into the conveying hopper on the bracket, and the conveying hopper is used to be connected to the rectifier chamber through the material conveying pipeline.

[0011] Preferably, the material shifting structure further comprises a material leveling plate, the material leveling plate is located at one side of the material discharge port, and the gap between the material leveling plate and the material discharge turntable is adjustable.

[0012] Preferably, the material shifting structure further comprises a recycling plate, the gap between the recycling plate and the discharging turntable is adjustable, and as the discharging turntable rotates, the recycling plate can shift the solid phase fire extinguishing agent on the discharging turntable into the waste powder tank on the bracket.

[0013] Preferably, the conveying structure further comprises a shell, the shell and the bracket form a sealed cavity, the powder storage hopper and the discharge turntable are both located in the sealed cavity, and the gas cylinder is in communication with the sealed cavity.

[0014] The present invention also discloses a solid phase fire extinguishing agent fire extinguishing test method, comprising the following steps:

[0015] Step 1, adding fuel into the storage structure, and adjusting the liquid level of the fuel in the storage structure so that the liquid level of the fuel in the storage structure is flush with the cup mouth of the cup burner;

[0016] Step 2: Ignite the fuel at the cup mouth of the cup burner, open the gas cylinder, and pre-burn for a period of time to stabilize the flame;

[0017] Step 3: introduce solid-phase fire extinguishing agent into the quartz tube through the conveying structure, keep the gas flow rate of the gas cylinder constant, and gradually increase the output concentration of the solid-phase fire extinguishing agent until the flame is extinguished. When the flame is extinguished, record the fire extinguishing gear as n, and record the number of fire extinguishing times x when the fire extinguishing gear is n;

[0018] Step 4: When the fire extinguishing gear is n+1, conduct a test and record the number of fire extinguishing times y when the fire extinguishing gear is n+1;

[0019] Step 5, repeat steps 1 to 4 several times to calculate the extinguishing concentration MEC of the solid phase fire extinguishing agent, in units of min / g;

[0020]

[0021] Among them, x is the number of fire extinguishing times when the fire extinguishing gear is n, y is the number of fire extinguishing times when the fire extinguishing gear is n+1, a is the output concentration of solid-phase fire extinguishing agent when the fire extinguishing gear is n, and b is the output concentration of solid-phase fire extinguishing agent when the fire extinguishing gear is n+1.

[0022] Compared with the prior art, the present invention has achieved the following technical effects:

[0023] The present invention proposes a solid-phase fire extinguishing agent fire extinguishing test device, which transports the solid-phase fire extinguishing agent in a conveying structure to a rectifier chamber under the action of gas in a gas cylinder, and then enters a quartz tube, and interacts with the flame of a cup burner at the upper end opening of the cup burner. The delivery of the solid-phase fire extinguishing agent can be precisely controlled to achieve accurate measurement of the fire extinguishing concentration of the solid-phase fire extinguishing agent and repeatability of the experimental results, quantify the fire extinguishing efficiency of the solid-phase fire extinguishing agent, and provide strong support for the evaluation of the fire extinguishing efficiency of the fire extinguishing agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a front view of the solid phase fire extinguishing agent fire extinguishing test device of the present invention;

[0026] Figure 2 It is a front view of the solid phase fire extinguishing agent fire extinguishing test device of the present invention (without the shell);

[0027] Figure 3 Axonometric measurement of the conveying structure of the present invention Figure 1 ;

[0028] Figure 4 Axonometric measurement of the conveying structure of the present invention Figure 2 ;

[0029] In the figure: 1-rectifier chamber, 2-cup burner, 3-quartz tube, 4-gas cylinder, 5-feeding pipeline, 6-base, 7-chassis, 8-powder storage hopper, 9-shell, 10-discharge port, 11-discharge baffle, 12-discharge turntable, 13-drive structure, 14-speed controller, 15-material leveling plate, 16-dispensing plate, 17-recovery plate, 18-conveying hopper, 19-waste powder tank, 20-storage structure, 21-gas pipeline. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The purpose of the present invention is to provide a solid phase fire extinguishing agent fire extinguishing test device and test method to solve the problems existing in the above-mentioned prior art and to realize the testing of solid phase fire extinguishing agent.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Embodiment 1

[0034] like Figures 1 to 4 As shown, this embodiment provides a solid-phase fire extinguishing agent fire extinguishing test device, and the dimensions and materials of each structure in the solid-phase fire extinguishing agent fire extinguishing test device are designed in accordance with the requirements of ISO14520-1, including: a rectifier chamber 1, a cup burner 2, a quartz tube 3, a conveying structure and a gas cylinder 4, the lower end of the cup burner 2 is connected to a storage structure 20 for holding fuel, and is used to introduce fuel into the cup burner 2, the storage structure and the cup burner 2 can form a communicating vessel structure, the quartz tube 3 is sleeved on the outside of the cup burner 2, the upper ends of the cup burner 2 and the quartz tube 3 are both opened, the lower end of the quartz tube 3 is connected to the rectifier chamber 1, the gas cylinder 4 is used to hold air, the gas cylinder 4 is connected to the conveying structure through a gas delivery pipeline 21, the conveying structure is connected to the rectifier chamber 1 through a delivery pipeline 5, and the gas in the gas cylinder 4 is used to transport the solid-phase fire extinguishing agent in the conveying structure to the quartz tube 3.

[0035] Specifically, in this embodiment, the rectifying chamber 1 and the quartz tube 3 are both arranged on the base 6, the upper part of the rectifying chamber 1 is connected to the lower part of the base 6, and the lower part of the quartz tube 3 is connected to the upper part of the base 6. Mounting holes are arranged at positions on the base 6 corresponding to the rectifying chamber 1 and the quartz tube 3, and the cup mouth at the upper end of the cup-type burner 2 is lower than the upper end of the quartz tube 3.

[0036] In this embodiment, the rectifying chamber 1, the cup-type burner 2 and the quartz tube 3 are coaxially arranged. The interior of the rectifying chamber 1 is a straight-through cavity for the flow of air and solid-phase fire extinguishing agent. A conveying port is provided at the bottom of the rectifying chamber 1. The conveying port is coaxially arranged with the rectifying chamber 1, and the conveying port is used to connect with the material delivery pipeline 5.

[0037] In this embodiment, the conveying structure includes a bracket, a powder storage hopper 8 and a shell 9. The shell 9 and the chassis 7 of the bracket form a sealed cavity. The powder storage hopper 8 is arranged on the bracket. The powder storage hopper 8 and the discharge turntable 12 are both located in the sealed cavity. The gas delivery pipeline 21 of the gas cylinder 4 is connected to the sealed cavity through the pressure-stabilizing airflow port on the chassis 7. The discharge port 10 of the powder storage hopper 8 is used to connect with the rectifier chamber 1 through the delivery pipeline 5. The gas cylinder 4 introduces a certain amount of air into the sealed cavity through the pressure-stabilizing airflow port to maintain the air pressure in the sealed cavity to ensure that the solid phase fire extinguishing agent can enter the delivery pipeline 5.

[0038] In this embodiment, a discharge port 10 is provided at the lower portion of the side wall of the powder storage hopper 8 , and a discharge baffle 11 is provided at the discharge port 10 . The size of the discharge port 10 can be adjusted by adjusting the position of the discharge baffle 11 .

[0039] In this embodiment, the conveying structure also includes a discharge turntable 12, a driving structure 13 and a material-diverting structure. The discharge turntable 12, the driving structure 13 and the material-diverting structure are all arranged on the bracket. The discharge turntable 12 is arranged horizontally and is located below the powder storage hopper 8. The upper surface of the discharge turntable 12 is a rough surface. The driving structure 13 is preferably a motor. The driving structure 13 is used to drive the discharge turntable 12 to rotate. The driving structure 13 is electrically connected to the speed controller 14. The speed controller 14 adjusts the speed of the motor. A total of 10 speed gears (i.e., fire extinguishing gears) are provided. Each gear corresponds to a corresponding powder discharge efficiency. The fire extinguishing efficiency of the fire extinguishing agent can be accurately evaluated according to the powder discharge speed. The material-diverting structure is used to transport the solid-phase fire extinguishing agent on the discharge turntable 12 to the quartz tube 3.

[0040] In this embodiment, the material-diverting structure includes a material-diverting plate 15, a material-diverting plate 16 and a material-recovering plate 17. The material-diverting plate 15, the material-diverting plate 16 and the material-recovering plate 17 are all rotatably connected to the bracket, so that the angles of the material-diverting plate 15, the material-diverting plate 16 and the material-recovering plate 17 can be adjusted. The material-diverting plate 15, the material-diverting plate 16 and the material-recovering plate 17 are all vertically arranged with the discharging turntable 12. The material-diverting plate 15, the material-recovering plate 17 and the material-diverting plate 16 are arranged in sequence around the powder storage hopper 8. The material-diverting plate 15 is located on one side of the discharging port 10. The material-diverting plate 15 and the material-recovering turntable 12 can be adjusted, the gap between the recovery plate 17 and the discharge turntable 12 can be adjusted, as the discharge turntable 12 rotates, the recovery plate 17 can dial the solid-phase fire extinguishing agent on the discharge turntable 12 into the waste powder tank 19 on the bracket, the gap between the material plate 16 and the discharge turntable 12 can be adjusted, as the discharge turntable 12 rotates, the material plate 16 can dial the solid-phase fire extinguishing agent on the discharge turntable 12 into the conveying hopper 18 on the bracket, and the conveying hopper 18 is used to be connected to the rectifier chamber 1 through the conveying pipeline 5.

[0041] In this embodiment, the discharge baffle 11 is adjusted in height to control the total amount of powder at the discharge port 10; the leveling plate 15 is adjusted in height to evenly spread the powder on the discharge turntable 12; the recovery plate 17 is adjusted in position to flow the un-flattened powder into the waste powder tank 19; the shifting plate 16 is adjusted in angle to make the powder flow out in a uniform state. This embodiment solves the problem of being unable to effectively control the flow rate and uniformity of the solid phase fire extinguishing agent through the shifting structure.

[0042] In this embodiment, the solid-phase fire extinguishing agent in the powder storage hopper 8 is discharged from the discharge port 10 onto the discharge turntable 12. As the discharge turntable 12 rotates, the material leveling plate 15 evenly spreads the solid-phase fire extinguishing agent on the discharge turntable 12, and the material shifting plate 16 shifts the solid-phase fire extinguishing agent on the discharge turntable 12 to the conveying hopper 18. The solid-phase fire extinguishing agent moves along the conveying hopper 18 and the conveying pipeline 5 under the action of gas pressure and gravity, and the solid-phase fire extinguishing agent is transported to the rectifier chamber 1 and the quartz tube 3. Finally, the solid-phase fire extinguishing agent moves to the opening at the upper end of the cup-type burner 2, and interacts with the fuel flame at the cup mouth at the upper end of the cup-type burner 2. The solid-phase fire extinguishing agent flows upward with the airflow, and extinguishes the flame at the cup mouth at the upper end of the cup-type burner 2 when a certain concentration is reached.

[0043] When the present embodiment is working, the speed controller 14 controls the rotation speed of the driving structure 13, and the driving structure 13 drives the discharging turntable 12 to rotate. The solid-phase fire extinguishing agent flows out from the discharging port 10 of the powder storage hopper 8 under the action of gravity. Under the action of the rotation of the discharging turntable 12, the solid-phase fire extinguishing agent is dispersed outward and covers the entire surface of the discharging turntable 12. The speed controller 14 is connected to the driving structure 13 to adjust the rotation speed of the driving structure 13 to accurately control the rotation speed of the discharging turntable 12. The powder storage hopper 8 is designed as a top-opening container, which is located above the discharging turntable 12. The discharging turntable 12 is a horizontally arranged disc with a certain degree of roughness on the surface to enhance the adhesion of the solid-phase fire extinguishing agent on the disc. The discharging baffle 11 controls the amount of powder flowing out of the powder storage hopper 8 to avoid waste due to excessive amount of powder flowing out, which has an adverse effect on the final output of the solid-phase fire extinguishing agent. 5 is perpendicular to the discharge turntable 12, forming an adjustable gap, and preliminarily spreading the solid-phase fire extinguishing agent flowing out of the discharge port 10. This step is to evenly spread the solid-phase fire extinguishing agent on the entire discharge turntable 12 and to have a preliminary control over the power output. The recovery plate 17 is perpendicular to the discharge turntable 12, and further disperses the dispersed solid-phase fire extinguishing agent. The angle is adjusted to scrape the excess solid-phase fire extinguishing agent to the waste powder outlet and flow into the waste powder tank 19. The function of the material leveling plate 15 is checked and corrected to reduce the probability of errors caused by various factors and improve the accuracy of the solid-phase fire extinguishing agent output. The material-dividing plate 16 is set on the discharge turntable 12, and scrapes the solid-phase fire extinguishing agent into the conveying hopper 18. The solid-phase fire extinguishing agent falls from the conveying hopper 18 into the feeding pipeline 5, and flows into the cup burner 2 under the action of gas pressure and gravity, and interacts with the fuel flame at the cup mouth of the cup burner 2.

[0044] This embodiment realizes precise control of powder flow rate at different particle sizes through the synergistic effect of multiple baffles (material leveling plate 15, material diverting plate 16 and material recovery plate 17) and the speed controller 14; this embodiment realizes effective recovery and reuse of excess powder through the waste powder tank 19, improves the utilization efficiency of solid-phase fire extinguishing agent, and reduces experimental costs; this embodiment controls the driving structure 13 through the speed controller 14 to ensure that the discharging turntable 12 can rotate at a set speed, thereby realizing precise control of the powder conveying amount, and the speed controller 14 is provided with multiple speed gears (i.e., fire extinguishing gears), which can select different speed gears for powder conveying under different experimental conditions; this embodiment ensures that the solid-phase fire extinguishing agent can be stably and accurately conveyed to the combustion area for fire extinguishing experiments through the conveying structure and the cup burner 2, thereby improving the accuracy and reliability of fire extinguishing efficiency evaluation.

[0045] The solid-phase fire extinguishing agent fire extinguishing test device of this embodiment can be used to evaluate the fire extinguishing efficiency of solid-phase fire extinguishing agent for combustible gas and combustible liquid fires. At the center of the coaxial airflow, solid-phase fire extinguishing agent is added to extinguish the flame of fuel combustion and diffusion in the cup burner 2. The conveying structure of the solid-phase fire extinguishing agent can evenly distribute the solid-phase fire extinguishing agent and accurately control the conveying amount. When the driving structure 13 is started, the discharging turntable 12 is driven to rotate at a set speed, and the solid-phase fire extinguishing agent is evenly loaded from the powder storage hopper 8 onto the discharging turntable 12. As the discharging turntable 12 rotates, the dispersing direction and range of the solid-phase fire extinguishing agent are further controlled by the material shifting structure. The solid-phase fire extinguishing agent is scraped into the conveying hopper 18, and the solid-phase fire extinguishing agent falls from the conveying hopper 18 into the feeding pipeline 5, flows into the cup burner 2 under the action of gas pressure and gravity, and interacts with the fuel flame at the cup mouth of the cup burner 2 until the flame is extinguished.

[0046] This embodiment achieves efficient use of solid-phase fire extinguishing agent through the conveying structure, reducing the experimental cost. Under the action of the speed controller 14 and the material-dispensing structure, the reuse rate of the solid-phase fire extinguishing agent is improved, ensuring the efficiency of the powder output effect; this embodiment improves the repeatability of the fire extinguishing experiment, and sets a constant pressure airflow port in the conveying structure to maintain the pressure balance inside the device, and ensures that the powder smoothly enters the conveying pipeline 5 under the action of gas pressure and gravity, ensuring the stability of powder transportation; this embodiment improves the accuracy and reliability of the evaluation of the fire extinguishing efficiency of the solid-phase fire extinguishing agent; this embodiment enhances the adaptability to powders of different particle sizes. Considering the differences in the particle size of the solid-phase fire extinguishing agent, the conveying structure of this embodiment can achieve precise control of powders of different particle sizes by adjusting the height, angle and position of the material-leveling plate 15, the material-dispensing plate 16 and the material-recovery plate 17, ensuring the accuracy of powder output. This embodiment evaluates the fire extinguishing efficiency of the solid phase fire extinguishing agent, that is, the fire extinguishing concentration of the fire extinguishing agent, under the synergistic effect of various components, provides important support for the research and application of solid phase fire extinguishing agents, and improves the evaluation level of fire extinguishing effects and the feasibility of research.

[0047] Embodiment 2

[0048] This embodiment provides a solid phase fire extinguishing agent fire extinguishing test method using the solid phase fire extinguishing agent fire extinguishing test device of embodiment 1, comprising the following steps:

[0049] Step 1: Add fuel to the storage structure 20, so that the storage structure 20 and the cup burner 2 form a communicating vessel structure, and adjust the liquid level of the fuel in the storage structure 20 so that the liquid level of the fuel in the storage structure 20 is flush with the cup mouth of the cup burner 2;

[0050] Step 2: ignite the fuel in the cup mouth of the cup burner 2, open the gas cylinder 4, and adjust the corresponding pressure reducing valve to set the air flow rate to 40L / min, install the quartz tube 3, and pre-burn for 60s to stabilize the flame;

[0051] Step 3: introduce solid-phase fire extinguishing agent into the quartz tube 3 through the conveying structure, keep the gas flow of the gas cylinder 4 constant, and gradually increase the output concentration of the solid-phase fire extinguishing agent until the flame is extinguished. When the flame is extinguished, record the fire extinguishing gear as n, and record the number of fire extinguishing times x when the fire extinguishing gear is n;

[0052] Step 4: When the fire extinguishing gear is n+1, conduct a test and record the number of fire extinguishing times y when the fire extinguishing gear is n+1;

[0053] Step 5, repeat step 1 to step 4 ten times in total, different types of solid phase fire extinguishing agents can be selected, and the output concentration of the solid phase fire extinguishing agent at each fire extinguishing gear is measured. Multiple fire extinguishing experiments are carried out, and the corresponding number of fire extinguishing at each fire extinguishing gear is recorded. According to the ratio of the number of fire extinguishing times and the linear relationship between the fire extinguishing gear and the output concentration of the solid phase fire extinguishing agent, the fire extinguishing concentration MEC of the solid phase fire extinguishing agent is calculated, in units of min / g;

[0054]

[0055] Among them, x is the number of fire extinguishing times when the fire extinguishing gear is n, y is the number of fire extinguishing times when the fire extinguishing gear is n+1, a is the output concentration of solid-phase fire extinguishing agent when the fire extinguishing gear is n, and b is the output concentration of solid-phase fire extinguishing agent when the fire extinguishing gear is n+1.

[0056] The solid phase fire extinguishing agent fire extinguishing test method of this embodiment provides a new method for evaluating the fire extinguishing efficiency of solid phase fire extinguishing agents.

[0057] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A solid phase fire extinguishing agent fire extinguishing test device, characterized in that: include: A rectifier chamber, a cup burner, a quartz tube, a conveying structure and a gas cylinder, wherein the lower end of the cup burner is used to introduce fuel, the quartz tube is sleeved on the outer side of the cup burner, the upper end of the cup burner and the upper end of the quartz tube are both opened, the lower end of the quartz tube is connected to the rectifier chamber, the conveying structure is respectively connected to the rectifier chamber and the gas cylinder, and the gas in the gas cylinder is used to convey the solid-phase fire extinguishing agent in the conveying structure to the quartz tube.

2. The solid phase fire extinguishing agent fire extinguishing test device according to claim 1, characterized in that: The cup mouth at the upper end of the cup-type burner is lower than the upper end of the quartz tube; the rectifying chamber, the cup-type burner and the quartz tube are coaxially arranged, and a conveying port is arranged at the bottom of the rectifying chamber, and the conveying port is coaxially arranged with the rectifying chamber, and the conveying port is used to connect with the conveying structure.

3. The solid phase fire extinguishing agent fire extinguishing test device according to claim 1, characterized in that: The utility model also comprises a fuel storage structure for storing fuel, wherein the fuel storage structure is connected with the cup-type burner through a fuel pipeline.

4. The solid phase fire extinguishing agent fire extinguishing test device according to claim 1, characterized in that: The conveying structure includes a bracket and a powder storage hopper, the powder storage hopper is arranged on the bracket, a discharge port is opened at the lower part of the side wall of the powder storage hopper, the discharge port is used to be connected with the rectification chamber through a conveying pipeline, and a discharge baffle is arranged at the discharge port, and the size of the discharge port can be adjusted by adjusting the position of the discharge baffle.

5. The solid phase fire extinguishing agent fire extinguishing test device according to claim 4, characterized in that: The conveying structure also includes a discharging turntable, a driving structure and a material shifting structure. The discharging turntable, the driving structure and the material shifting structure are all arranged on the bracket. The discharging turntable is located below the powder storage hopper. The upper surface of the discharging turntable is a rough surface. The driving structure is used to drive the discharging turntable to rotate, and the material shifting structure is used to transport the solid-phase fire extinguishing agent on the discharging turntable to the quartz tube.

6. The solid phase fire extinguishing agent fire extinguishing test device according to claim 5, characterized in that: The material-diverting structure includes a material-diverting plate, and the gap between the material-diverting plate and the material-discharging turntable can be adjusted. As the material-discharging turntable rotates, the material-diverting plate can divert the solid-phase fire extinguishing agent on the material-discharging turntable into the conveying hopper on the bracket, and the conveying hopper is used to be connected to the rectifier chamber through the material conveying pipeline.

7. The solid phase fire extinguishing agent fire extinguishing test device according to claim 6, characterized in that: The material shifting structure further comprises a material leveling plate, which is located at one side of the material discharging port, and the gap between the material leveling plate and the material discharging turntable can be adjusted.

8. The solid phase fire extinguishing agent fire extinguishing test device according to claim 6, characterized in that: The material shifting structure also includes a material recovery plate, and the gap between the material recovery plate and the material discharging turntable can be adjusted. As the material discharging turntable rotates, the material recovery plate can shift the solid phase fire extinguishing agent on the material discharging turntable into the waste powder tank on the bracket.

9. The solid phase fire extinguishing agent fire extinguishing test device according to claim 5, characterized in that: The conveying structure further comprises a shell, wherein the shell and the bracket form a sealed cavity, the powder storage hopper and the discharge turntable are both located in the sealed cavity, and the gas cylinder is in communication with the sealed cavity.

10. A solid phase fire extinguishing agent fire extinguishing test method, characterized in that: The following steps are involved: Step 1, adding fuel into the storage structure, and adjusting the liquid level of the fuel in the storage structure so that the liquid level of the fuel in the storage structure is flush with the cup mouth of the cup burner; Step 2: Ignite the fuel at the cup mouth of the cup burner, open the gas cylinder, and pre-burn for a period of time to stabilize the flame; Step 3: introduce solid-phase fire extinguishing agent into the quartz tube through the conveying structure, keep the gas flow rate of the gas cylinder constant, and gradually increase the output concentration of the solid-phase fire extinguishing agent until the flame is extinguished. When the flame is extinguished, record the fire extinguishing gear as n, and record the number of fire extinguishing times x when the fire extinguishing gear is n; Step 4: When the fire extinguishing gear is n+1, conduct a test and record the number of fire extinguishing times y when the fire extinguishing gear is n+1; Step 5, repeat steps 1 to 4 several times to calculate the extinguishing concentration MEC of the solid phase fire extinguishing agent, in units of min / g; Among them, x is the number of fire extinguishing times when the fire extinguishing gear is n, y is the number of fire extinguishing times when the fire extinguishing gear is n+1, a is the output concentration of solid-phase fire extinguishing agent when the fire extinguishing gear is n, and b is the output concentration of solid-phase fire extinguishing agent when the fire extinguishing gear is n+1.

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