Spray type fire extinguishing demonstration system with anti-pollution and automatic recovery functions

Abstract

The utility model discloses a spray type fire extinguishing demonstration system with anti-pollution and automatic recovery functions, which comprises a control cabinet, two fire extinguishing agent bottles, a gas supply header pipe, two driving gas bottles, a transparent demonstration box and a fire extinguishing agent recovery device, outlets of the electromagnetic valves of the two driving gas cylinders are connected with a first braking gas pipe and a second braking gas pipe; two demonstration grids communicated with the two gas supply branch pipes respectively are arranged in the transparent demonstration box, spray heads are arranged in the two demonstration grids, long-handle igniters are arranged below the spray heads, and temperature sensors electrically connected with the electromagnetic valves are arranged in the demonstration grids. The utility model belongs to the technical field of safety training demonstration equipment, ignition and fire extinguishing tests are carried out in the transparent demonstration box, air in a training room cannot be polluted, and a fire extinguishing agent recovery device is arranged to recycle a fire extinguishing agent.

Description

Technical Field

[0001] The utility model relates to the technical field of safety training demonstration equipment, and more specifically, to a spray-type fire-extinguishing demonstration system with anti-pollution and automatic recovery functions. Background Art

[0002] Spray fire extinguishing systems are widely used in various scenarios such as information rooms, archives, power distribution rooms, and laboratories in various enterprises and institutions. How to carry out effective training so that employees in various application scenarios can understand, be familiar with, and master the functional principles of the spray fire extinguishing system, so as to maximize the firefighting emergency response function of the spray fire extinguishing system, while effectively avoiding casualties caused by improper operation and use. However, due to the following two reasons, daily training can only be taught from the theoretical perspective of the spray fire extinguishing system, and employees cannot intuitively operate and observe the real full-process actions and eruption scenes of the spray fire extinguishing system, making the training content relatively abstract and the training effect poor.

[0003] Reason 1: As the extinguishing agents of the spray fire extinguishing system are mostly asphyxiating gases such as HFC-227ea, IG541 and carbon dioxide, the demonstration under non-fire conditions will allow the spray fire extinguishing system to actually operate and cause suffocation and pollution, which will not only pollute the indoor air environment, but also pose a suffocation threat to the health of on-site trainees and staff.

[0004] Reason 2: Since most spray fire extinguishing systems are filled in fire extinguishing agent cylinders at one time, once they are actually activated and erupted, they will need to be returned to the factory for refilling and maintenance and cannot be used repeatedly. The actual demonstration cost is high and the recovery time is long. Utility Model Content

[0005] In view of the above shortcomings, the purpose of the utility model is to provide a spray fire extinguishing demonstration system with anti-pollution and automatic recovery functions to solve the problem of indoor pollution caused by fire extinguishing agent and waste of fire extinguishing agent during spray fire extinguishing demonstration.

[0006] To achieve the above-mentioned purpose, the utility model provides a spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions, comprising two fire extinguishing agent bottles, two driving gas bottles, a transparent demonstration box and a control cabinet, wherein the upper end of the two fire extinguishing agent bottles is provided with a bottle mouth valve, the bottle mouth valves of the two fire extinguishing agent bottles are connected to a gas supply main pipe through a metal bellows, the gas supply main pipe is provided with two gas supply branches, and the two gas supply branches are provided with a zone selection valve;

[0007] A solenoid valve is provided at the outlet of the upper end of the two driving gas cylinders, and the outlets of the solenoid valves of the two driving gas cylinders are connected to a first brake air pipe and a second brake air pipe, the two first brake air pipes are respectively connected to the area selection valves on the two gas supply branches, and the two second brake air pipes are respectively connected to the bottle mouth valves on the two fire extinguishing agent bottles;

[0008] The transparent demonstration box is provided with two demonstration grids respectively connected to two gas supply branches, the two demonstration grids are provided with nozzles, a long-handled igniter is provided below the nozzles, and the demonstration grids are provided with temperature sensors electrically connected to the corresponding solenoid valves on the driving gas cylinders;

[0009] The two demonstration grids are connected with a fire extinguishing agent recovery device for recovering the fire extinguishing agent to the fire extinguishing agent bottle;

[0010] The control cabinet is electrically connected to the solenoid valve, the temperature sensor and the fire extinguishing agent recovery device.

[0011] Preferably, a one-way pneumatic valve is provided on the zone selection valve, and the valve core push rod of the one-way pneumatic valve abuts against the starting rocker of the zone selection valve; the input end of the one-way pneumatic valve is connected to the solenoid valve of the driving gas cylinder through the first brake air pipe, and the output end of the one-way pneumatic valve is connected to the air inlet end of the safety helmet pin assembly of the bottle mouth valve through the second brake air pipe.

[0012] Preferably, the fire extinguishing agent recovery device includes a smoke hood arranged in the two demonstration grids, the rear ends of the two smoke hoods are connected to an exhaust pipe, the two exhaust pipes are provided with exhaust fans, the rear ends of the two exhaust pipes are connected to an electromagnetic reversing valve 1, the output end of the electromagnetic reversing valve 1 is connected to a gas compressor through a pipeline, the output end of the gas compressor is provided with an electromagnetic reversing valve 2, the two output ports of the electromagnetic reversing valve 2 are connected to recovery pipes respectively connected to two fire extinguishing agent bottles, and the recovery pipes are provided with a second one-way valve.

[0013] Preferably, the second brake air pipes of the two driving gas cylinders are connected to an electromagnetic reversing valve three, and the two output ends of the electromagnetic reversing valve three are connected to the bottle mouth valves of the two fire extinguishing agent bottles.

[0014] Preferably, a combustion tray is provided in the demonstration grid, and a feed inclined pipe is provided on one side of the outer wall of the demonstration grid and extends obliquely downward to above the combustion tray.

[0015] Preferably, a stop valve is provided at the outer end of the feed inclined tube, and a discharge trough is provided on the feed inclined tube.

[0016] Preferably, the side wall of the demonstration grid is provided with an operating hole for the long-handled igniter to extend into the combustion tray, and a sealing rubber ring matched with the sleeve of the long-handled igniter is provided in the operating hole.

[0017] Preferably, a blower is provided at one end of the gas supply main pipe, and an electric butterfly valve is provided at the outlet of the blower.

[0018] Preferably, a foot-operated air pump connected to the bottle mouth of the driving gas cylinder is connected to its inner cavity through a hose, a first one-way valve is provided on the hose connecting the foot-operated air pump and the driving gas cylinder, and a second pressure gauge is provided on the hose between the first one-way valve and the driving gas cylinder.

[0019] Preferably, a pressure relief valve is provided on the gas supply main pipe, and a first pressure gauge is provided on the two gas supply branch pipes downstream of the zone selection valve.

[0020] Compared with the existing technology, the utility model has the following beneficial effects:

[0021] (1) In the spray-type fire-extinguishing demonstration system with anti-pollution and automatic recovery functions of the utility model, the ignition and fire-extinguishing tests are carried out in a transparent demonstration box, which will not pollute the air in the training room, avoid harm to the health of trainees and staff on site, and solve the technical problem of fire-extinguishing agents polluting the environment during fire-extinguishing demonstrations;

[0022] (2) In the spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions of the utility model, a fire extinguishing agent recovery device is provided in the transparent demonstration box to realize the recovery and reuse of the fire extinguishing agent, which significantly reduces the time and economic cost of demonstration training;

[0023] (3) The spray-type fire-extinguishing demonstration system with anti-pollution and automatic recovery functions of the utility model is provided with two fire-extinguishing agent bottles, a driving gas bottle, two gas supply branches and a demonstration grid, which can demonstrate the fire-extinguishing effects of different fire-extinguishing agents on combustibles, and can also demonstrate the process of extinguishing fires on different combustibles, so as to facilitate the training and popularization of fire-fighting knowledge for trainees and improve the learning efficiency of fire-fighting knowledge for trainees. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following will briefly introduce the drawings required for the description of the embodiment. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0025] Figure 1 It is a left-view structural stereogram of the spray-type fire-extinguishing demonstration system with anti-pollution and automatic recovery functions of the utility model;

[0026] Figure 2 It is a right-side structural stereogram of the spray-type fire-extinguishing demonstration system with anti-pollution and automatic recovery functions of the utility model;

[0027] Figure 3 This is a structural front view of the spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions of the utility model;

[0028] Figure 4 It is a top view of the structure of the spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions of the utility model;

[0029] Figure 5 It is a structural left view of the spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions of the utility model;

[0030] Figure 6 It is a right view of the structure of the spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions of the utility model;

[0031] Figure 7 This is a rear structural view of the spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions of the utility model;

[0032] Figure 8 yes Figure 3 A schematic diagram of the structure enlargement at the center A;

[0033] Fig. 9 It is a gas circuit control diagram of the electromagnetic reversing valve 3 connected with two second brake air pipes and the bottle mouth valve in the utility model;

[0034] Fig.10 It is a gas circuit control diagram of the fire extinguishing agent recovery device in the utility model.

[0035] Description of main reference numerals:

[0036] 1. Fire extinguisher bottle; 3. Bottle mouth valve; 4. Drive gas bottle; 6. Solenoid valve; 7. Gas supply main pipe; 8. Metal bellows; 9. Gas supply branch pipe; 10. Area selection valve; 11. One-way pneumatic valve; 12. Valve core push rod; 13. Start rocker; 14. First brake air pipe; 15. Second brake air pipe; 16. Safety helmet latch assembly; 18. Nozzle; 19. Transparent demonstration box; 21. Burning tray; 22. Feed inclined pipe; 23. Long-handled igniter; 24. Operation hole; 25. Temperature Sensor; 29, pressure relief valve; 30, first pressure gauge; 31, foot-operated air pump; 32, first non-return valve; 33, smoke hood; 34, exhaust fan; 35, gas compressor; 36, second non-return valve; 37, demonstration grid; 38, control cabinet; 39, exhaust pipe; 40, solenoid reversing valve one; 41, solenoid reversing valve two; 42, recovery pipe; 43, stop valve; 44, discharge trough; 45, blower; 46, electric butterfly valve; 47, solenoid reversing valve three; 48, second pressure gauge. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The following is an explanation of the embodiments of the utility model based on its overall structure.

[0038] The specific implementation of the utility model is as follows:

[0039] As attached Figure 1-Figure 10 As shown, a spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions includes two fire extinguishing agent bottles 1, two driving gas bottles 4, a transparent demonstration box 19 and a control cabinet 38. The upper ends of the two fire extinguishing agent bottles 1 are provided with bottle mouth valves 3. The bottle mouth valves 3 of the two fire extinguishing agent bottles 1 are connected to a gas supply main pipe 7 through a metal bellows 8. The gas supply main pipe 7 is provided with two gas supply branches 9. The two gas supply branches 9 are provided with area selection valves 10.

[0040] A solenoid valve 6 is provided at the outlet of the upper end of the two driving gas cylinders 4, and a first brake air pipe 14 and a second brake air pipe 15 are connected to the outlet of the solenoid valve 6 of the two driving gas cylinders 4. The two first brake air pipes 14 are respectively connected to the area selection valves 10 on the two gas supply branches 9, and the two second brake air pipes 15 are respectively connected to the bottle mouth valves 3 on the two fire extinguishing agent bottles 1; the two first brake air pipes 14 are respectively corresponding to the area selection valves 10 on the two gas supply branches 9 and can drive the corresponding area selection valves 10 to open, and the two second brake air pipes 15 are respectively corresponding to the bottle mouth valves 3 on the two fire extinguishing agent bottles 1 and can drive the corresponding bottle mouth valves 3 to open;

[0041] The transparent demonstration box 19 is provided with two demonstration grids 37 respectively connected to the two gas supply branches 9, the two demonstration grids 37 are provided with nozzles 18, and a long-handled igniter 23 is provided below the nozzles 18. The demonstration grids 37 are provided with temperature sensors 25 electrically connected to the corresponding electromagnetic valves 6 on the driving gas cylinders 4;

[0042] The two demonstration grids 37 are connected with a fire extinguishing agent recovery device for recovering the fire extinguishing agent to the fire extinguishing agent bottle 1;

[0043] The control cabinet 38 is electrically connected to the solenoid valve 6 , the temperature sensor 25 and the fire extinguishing agent recovery device.

[0044] In the spray-type fire-extinguishing demonstration system with anti-pollution and automatic recovery functions of the utility model, two groups of spray-type fire-extinguishing structures are arranged in two demonstration grids 37 in a transparent demonstration box 19 to demonstrate two fire-extinguishing processes, so that the training personnel can directly observe the spray-type fire-extinguishing process; by arranging temperature sensors 25, nozzles 18 and long-handled igniters 23 in the two demonstration grids 37, the long-handled igniter 23 in one of the demonstration grids 37 is ignited, and the ignition of the long-handled igniter 23 can directly increase the temperature in the demonstration grid 37, or ignite the combustible in the demonstration grid 37, and after the temperature sensor 25 senses the temperature increase, it emits a The alarm is sounded and a signal is sent to the control cabinet 38. The control cabinet 38 controls the electromagnetic valve 6 on the corresponding driving gas cylinder 4 to open. The electromagnetic valve 6 injects gas into the first brake air pipe 14 and the second brake air pipe 15. The gas in the first brake air pipe 14 can drive the area selection valve 10 on the gas supply branch pipe 9 corresponding to the demonstration grid 37 to open. At the same time, the second brake air pipe 15 drives the bottle mouth valve 3 on the corresponding fire extinguishing agent bottle 1 to open. The fire extinguishing agent in the fire extinguishing agent bottle 1 is supplied to the gas supply main pipe 7, and then transported to the corresponding gas supply branch pipe 9, and then transported to the nozzle 18 in the corresponding demonstration grid 37. After the nozzle 18 is opened, spray fire extinguishing is carried out. The ignition and fire extinguishing tests are carried out in the transparent demonstration box 19, which will not pollute the air in the training room, and solve the technical problem that the fire extinguishing agent pollutes the environment during the fire extinguishing demonstration.

[0045] Different combustibles can be set in another demonstration grid 37, and the same fire extinguishing agent can be set in two fire extinguishing agent bottles 1. The same operation can be performed on another demonstration grid 37 to demonstrate the fire extinguishing effect of the same fire extinguishing agent on different combustibles. Participants can deeply learn fire fighting knowledge.

[0046] The same combustible material can also be set in the two demonstration grids 37, and different fire extinguishing agents can be set in the two fire extinguishing agent bottles 1. The same operation can be performed on the two demonstration grids 37 to demonstrate the fire extinguishing effects of different fire extinguishing agents on the same combustible material. The trainees can deeply learn fire fighting knowledge.

[0047] In the spray-type fire-extinguishing demonstration system with anti-pollution and automatic recovery functions, a fire-extinguishing agent recovery device is provided to recover the fire-extinguishing agent remaining in the demonstration grid 37 and recover it into the corresponding fire-extinguishing agent bottle 1, thereby reducing the consumption of the fire-extinguishing agent, eliminating the need to frequently replace the fire-extinguishing agent bottle 1, and significantly reducing the time and economic cost of demonstration training.

[0048] Furthermore, the zone selection valve 10 is provided with a one-way pneumatic valve 11, and the valve core push rod 12 of the one-way pneumatic valve 11 abuts against the start rocker 13 of the zone selection valve 10, and the valve of the zone selection valve 10 can be manually opened by starting the rocker 13;

[0049] The input end of the one-way pneumatic valve 11 is connected to the solenoid valve 6 of the driving gas cylinder 4 through the first brake air pipe 14, and the output end of the one-way pneumatic valve 11 is connected to the air inlet end of the safety helmet latch assembly 16 of the bottle mouth valve 3 through the second brake air pipe 15.

[0050] In this embodiment, the gas in the driving gas cylinder 4 is transported from the first brake air pipe 14 to the one-way pneumatic valve 11, driving the valve core push rod 12 of the one-way pneumatic valve 11 to slide and push the start rocker 13 of the area selection valve 10 to open the valve of the area selection valve 10; at the same time, the gas in the driving gas cylinder 4 is transported to the second brake air pipe 15 through the one-way pneumatic valve 11, and the second brake air pipe 15 drives the bottle mouth valve 3 of the fire extinguishing agent bottle 1 to open, and the fire extinguishing agent in the fire extinguishing agent bottle 1 enters the gas supply main 7, and then transported to the area selection valve 10, and then transported from the area selection valve 10 to the nozzle 18 for fire extinguishing; the personnel participating in the safety training can experience the whole process of fire and fire extinguishing. Through this spray fire extinguishing demonstration system, the staff can quickly perform fire safety demonstrations and fire extinguishing demonstrations, and improve the staff's understanding of the fire fighting measures in the factory area. In special circumstances, the start rocker 13 can also be manually operated to turn the start rocker 13 to open the area selection valve 10.

[0051] Furthermore, the fire extinguishing agent recovery device includes a smoke hood 33 arranged in the two demonstration grids 37, the rear ends of the two smoke hoods 33 are connected to an exhaust pipe 39, the two exhaust pipes 39 are provided with an exhaust fan 34, the rear ends of the two exhaust pipes 39 are connected to an electromagnetic reversing valve 1 40, the output end of the electromagnetic reversing valve 1 40 is connected to a gas compressor 35 through a pipeline, the output end of the gas compressor 35 is provided with an electromagnetic reversing valve 2 41, the two output ports of the electromagnetic reversing valve 2 41 are connected to a recovery pipe 42 respectively connected to the two fire extinguishing agent bottles 1, the recovery pipe 42 is provided with a second one-way valve 36, the electromagnetic reversing valve 1 40, the electromagnetic reversing valve 2 41, the gas compressor 35, the exhaust fan 34 and the control cabinet 38 are electrically connected.

[0052] In this embodiment, the residual fire extinguishing agent in the demonstration grid 37 can be sucked into the recovery pipe 42 by starting the gas compressor 35 and the exhaust fan 34, and then transported to the fire extinguishing agent bottle 1 for recovery;

[0053] Among them, as attached Fig.10 As shown, by controlling the electromagnetic reversing valve 1 40 and the electromagnetic reversing valve 2 41 to switch directions through the control buttons on the control cabinet 38, the air path consisting of the exhaust fan 34, the exhaust pipe 39, the recovery pipe 42, and the fire extinguishing agent bottle 1 corresponding to a certain demonstration grid 37 can be selected to form a passage to recover the fire extinguishing agent into the corresponding fire extinguishing agent bottle 1.

[0054] Furthermore, the second brake air pipes 15 of the two driving air cylinders 4 are connected to an electromagnetic reversing valve 3 47 , and two output ends of the electromagnetic reversing valve 3 47 are connected to the bottle mouth valves 3 of the two fire extinguishing agent bottles 1 .

[0055] In this embodiment, as shown in the attached Fig. 9 As shown, when performing a fire extinguishing demonstration, the gas flow direction of the two second brake air pipes 15 supplying air to the two bottle nozzle valves 3 is adjusted by the electromagnetic reversing valve 3 47; Fig. 9 As shown, the valve core of the electromagnetic reversing valve three 47 is controlled to move to the right by the control button on the control cabinet 38, and the gas circuit connecting the two second brake air pipes 15 and the two bottle mouth valves 3 is in a normal gas supply state; if it is necessary to change the gas supply direction of the two second brake air pipes 15, the valve core of the electromagnetic reversing valve three 47 can be controlled to move to the left by the control button on the control cabinet 38, so that the gas supply direction of the two second brake air pipes 15 and the two bottle mouth valves 3 is switched, so that the two driving gas cylinders 4 can drive the two bottle mouth valves 3 to open, so that the fire extinguishing agent in the two fire extinguishing agent bottles 1 can be supplied to the nozzles 18 in the same demonstration grid 37.

[0056] Furthermore, a combustion tray 21 is provided in the demonstration grid 37, and a feed inclined tube 22 is provided on one side of the outer wall of the demonstration grid 37 and extends obliquely downward to the top of the combustion tray 21, and a stop valve 43 is provided at the outer end of the feed inclined tube 22, and a discharge trough 44 is provided on the feed inclined tube 22. The side wall of the demonstration grid 37 is provided with an operating hole 24 for the long-handled igniter 23 to extend into the combustion tray 21, and a sealing rubber ring adapted to the sleeve of the long-handled igniter 23 is provided in the operating hole 24 to prevent air leakage, so that the entire demonstration grid 37 remains sealed.

[0057] In this embodiment, the stop valve 43 can be opened manually, the combustible material can be placed in the discharge trough 44, the combustible material can slide into the combustion tray 21, and then the combustible material on the combustion tray 21 can be ignited by the long-handled igniter 23.

[0058] Furthermore, a blower 45 is provided at one end of the gas supply main pipe 7, and an electric butterfly valve 46 is provided at the outlet of the blower 45, and the blower 45 and the electric butterfly valve 46 are electrically connected to the control cabinet 38. After the fire-free demonstration is completed, since there is still fire extinguishing agent remaining in the gas supply main pipe 7, it is necessary to start the blower 45, open the electric butterfly valve 46, and manually open the area selection valve 10 by starting the rocker 13, so as to blow the residual fire extinguishing agent in the gas supply main pipe 7 and the gas supply branch pipe 9 into the demonstration grid 37, and then recover it into the corresponding fire extinguishing agent bottle 1 through the fire extinguishing agent recovery device, so as to avoid the fire extinguishing agent remaining in the gas supply main pipe 7 and the gas supply branch pipe 9.

[0059] Furthermore, a foot-operated air pump 31 connected to the bottle mouth of the driving gas cylinder 4 through a hose is connected to its inner cavity. A first one-way valve 32 is provided on the hose connecting the foot-operated air pump 31 and the driving gas cylinder 4. A second pressure gauge 48 is provided on the hose between the first one-way valve 32 and the driving gas cylinder 4. The second pressure gauge 48 is used to detect the gas pressure in the driving gas cylinder 4. The second pressure gauge 48 is installed downstream of the first one-way valve 32. The solenoid valve 6 is also installed on the bottle mouth of the driving gas cylinder 4. The interface connecting the hose and the bottle mouth of the driving gas cylinder 4 is arranged upstream of the input end of the solenoid valve 6.

[0060] In this embodiment, a foot pump 31 is provided to inflate the driving gas cylinder 4. When the driving gas cylinder 4 is out of gas or the gas pressure is insufficient, the driving gas cylinder 4 can be manually inflated and pressurized by the foot pump 31. Inflation by the foot pump 31 has a simple structure, occupies a small space, is convenient for equipment layout, and has a low procurement cost.

[0061] In the anti-pollution function automatic recovery type spray fire extinguishing demonstration system of the utility model, using the foot-operated air pump 31 to artificially inflate and pressurize the driving gas cylinder 4 is only a means of inflation, and an air pump or air pump device can also be used to replace the driving gas cylinder 4.

[0062] Furthermore, a pressure relief valve 29 is provided on the gas supply main pipe 7, and the pressure relief valve 29 has a pressure relief function to prevent the gas pressure in the gas supply main pipe 7 from being too high and damaging the pipeline, the nozzle 18, etc. A first pressure gauge 30 is provided on the two gas supply branch pipes 9 downstream of the area selection valve 10. The first pressure gauge 30 is used to display the gas supply pressure to remind the staff to replenish the fire extinguishing agent into the fire extinguishing agent bottle 1 or replace the fire extinguishing agent bottle 1 in time.

[0063] The fire extinguishing demonstration method using the spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions specifically includes the following methods: the fuel in the demonstration grid 37 is ignited by the long-handled igniter 23, and the temperature sensor 25 in the demonstration grid 37 sends out a sensing signal after sensing the temperature rise, and the control cabinet 38 controls the solenoid valve 6 on the driving gas cylinder 4 corresponding to the demonstration grid 37 to open, and the driving gas cylinder 4 drives the corresponding area selection valve 10 and the bottle mouth valve 3 to open through the first brake gas pipe 14 and the second brake gas pipe 15 respectively, and the fire extinguishing agent bottle 1 supplies gas to the corresponding demonstration grid 37 through the corresponding gas supply branch pipe 9, and the fuel is extinguished through the corresponding nozzle 18. After the fire extinguishing is completed, the control cabinet 38 controls the fire extinguishing agent recovery device to start to recover the residual gas in the demonstration grid 37.

[0064] During the specific demonstration, different fire extinguishing agents are set in the two fire extinguishing agent bottles 1. The fire extinguishing agent can be carbon dioxide, heptafluoropropane or IG541 (IG541 is a mixed gas IG541 fire extinguishing agent, composed of three gases: 52% nitrogen, 40% argon, and 8% carbon dioxide. It is a colorless, odorless, non-conductive gas, with an ozone depletion potential value ODP=0 and a greenhouse effect potential value GWP=0. It stays in the atmosphere for a very short time). Different fuels can be set in the demonstration grid 37, and the demonstration grid 37 is set to a structure with a relatively small space. The amount of fuel is relatively small, and the smoke generated by the combustion of the fuel is relatively small. The fire extinguishing situation of different fire extinguishing agents on the combustion of different fuels is demonstrated. When the fire extinguishing agent recovery device is controlled by the control cabinet 38 to recover the fire extinguishing agent into the corresponding fire extinguishing agent bottle 1, the gas generated by the combustion of the fuel has less pollution to the fire extinguishing agent.

[0065] During the specific demonstration, the control button on the control cabinet 38 can also be used to control the valve core of the electromagnetic reversing valve three 47 to move to the left, so that the gas supply direction of the two second brake air pipes 15 and the two bottle mouth valves 3 changes, so that the two driving gas cylinders 4 can control the two bottle mouth valves 3 to open, so that the fire extinguishing agent in the two fire extinguishing agent bottles 1 can be supplied to the nozzle 18 in the same demonstration grid 37, demonstrating the process of extinguishing the fire of the burning materials in the same demonstration grid 37 by the fire extinguishing agents in different fire extinguishing agent bottles 1.

[0066] In the spray-type fire-extinguishing demonstration system with anti-pollution and automatic recovery functions, the ignition and fire-extinguishing tests are carried out in the transparent demonstration box 19, which will not pollute the air in the training room. Moreover, a fire-extinguishing agent recovery device is provided in the transparent demonstration box 19 to realize the recycling and reuse of the fire-extinguishing agent, thereby reducing the consumption of the fire-extinguishing agent and reducing the cost of demonstration training.

[0067] In the spray-type fire-extinguishing demonstration system with anti-pollution and automatic recovery functions, a foot-operated air pump 31 is provided to be connected to the first brake air pipe 14. After the gas in the driving gas cylinder 4 is consumed, the foot-operated air pump 31 can supply gas to the first brake air pipe 14 to provide gas for driving the one-way pneumatic valve 11 and the bottle mouth valve 3 to open, thereby ensuring the smooth progress of the demonstration training.

[0068] In the spray-type fire-extinguishing demonstration system with anti-pollution and automatic recovery functions, a foot-operated air pump 31 is provided to be connected to the bottle mouth of the driving gas cylinder 4. After the gas in the driving gas cylinder 4 is consumed, the foot-operated air pump 31 can be used to supply gas to the driving gas cylinder 4, so that the gas in the driving gas cylinder 4 remains sufficient and the air pressure meets the use requirements, so as to provide gas for driving the one-way pneumatic valve 11 and the bottle mouth valve 3 to open normally, thereby ensuring the smooth progress of the demonstration training.

[0069] Working principle:

[0070] The demonstrator operates the long-handled igniter 23 to ignite, and the temperature sensor 25 senses the temperature rise in the demonstration grid 37. The high-temperature heat source simulates the scene under fire conditions, and the temperature sensor sends out an alarm and a fire extinguishing signal. The alarm and the fire extinguishing signal are sent out to control the solenoid valve 6 to open, and the gas in the driving gas cylinder 4 is transported from the first brake air pipe 14 to the one-way pneumatic valve 11, and the valve core push rod 12 of the one-way pneumatic valve 11 is driven to slide and push the starting rocker 13 of the area selection valve 10 to open the valve of the area selection valve 10; at the same time, the gas in the driving gas cylinder 4 is transported to the second brake air pipe 15 through the one-way pneumatic valve 11, and the gas in the second brake air pipe 15 drives the bottle mouth valve 3 of the fire extinguishing agent bottle 1 to open, and the fire extinguishing agent bottle The fire extinguishing agent in 1 enters the gas supply main 7, and is then transported to the area selection valve 10, and then transported from the area selection valve 10 to the nozzle 18 for fire extinguishing. The personnel participating in the safety training can very intuitively observe and experience the entire process of the spray fire extinguishing system from the high temperature of the fire, the system sensing alarm, the interlocking start-up of the driving gas cylinder 4 mechanical device, and then the opening action of the fire extinguishing agent bottle 1 to the triggering of the fire extinguishing. Through this spray fire extinguishing demonstration system, the safety fire demonstration under the use scenario of the spray fire extinguishing system can be very intuitive and effective for the trainees, so as to improve the correct understanding of the spray fire extinguishing system by the staff in the application scenario area of ​​the spray fire extinguishing system, and further encourage them to be familiar with and master the functions and principles of the spray fire extinguishing system.

[0071] The spray fire extinguishing demonstration system can be used to quickly conduct fire safety demonstrations and fire extinguishing demonstrations for staff, thereby improving staff's understanding of fire fighting measures in factory areas. The system can also control the start-up of the gas compressor 35 and the exhaust fan 34 of the fire extinguishing agent recovery device to extract and compress the residual fire extinguishing agent in the demonstration grid 37, and then transport it to the corresponding fire extinguishing agent bottle 1 for recovery, thereby reducing the consumption of fire extinguishing agent, eliminating the need to frequently replace fire extinguishing agent bottles, and significantly reducing the time and economic cost of demonstration training.

[0072] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed. Although embodiments of the present invention have been shown and described, these specific embodiments are only explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention after reading this specification. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A spray fire extinguishing demonstration system with anti-pollution and automatic recovery functions, characterized in that: The invention comprises two fire extinguishing agent bottles (1), two driving gas bottles (4), a transparent demonstration box (19) and a control cabinet (38); the upper ends of the two fire extinguishing agent bottles (1) are provided with bottle mouth valves (3); the bottle mouth valves (3) of the two fire extinguishing agent bottles (1) are connected to a gas supply main pipe (7) through a metal bellows (8); the gas supply main pipe (7) is provided with two gas supply branches (9); and the two gas supply branches (9) are provided with a zone selection valve (10); A solenoid valve (6) is provided at the outlet of the upper end of the two driving gas cylinders (4); the outlets of the solenoid valves (6) of the two driving gas cylinders (4) are connected to a first brake air pipe (14) and a second brake air pipe (15); the two first brake air pipes (14) are respectively connected to the area selection valves (10) on the two gas supply branches (9); and the two second brake air pipes (15) are respectively connected to the bottle mouth valves (3) on the two fire extinguishing agent bottles (1); The transparent demonstration box (19) is provided with two demonstration grids (37) respectively connected to the two gas supply branches (9), the two demonstration grids (37) are provided with nozzles (18), a long-handled igniter (23) is provided below the nozzles (18), and the demonstration grids (37) are provided with temperature sensors (25) electrically connected to the corresponding electromagnetic valves (6) on the driving gas cylinders (4); The two demonstration grids (37) are connected to a fire extinguishing agent recovery device for recovering the fire extinguishing agent into the fire extinguishing agent bottle (1).

2. A spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions according to claim 1, characterized in that: The zone selection valve (10) is provided with a one-way pneumatic valve (11), and a valve core push rod (12) of the one-way pneumatic valve (11) abuts against a start rocker (13) of the zone selection valve (10); an input end of the one-way pneumatic valve (11) is respectively connected to the solenoid valve (6) of the driving gas cylinder (4) through a first brake air pipe (14), and an output end of the one-way pneumatic valve (11) is connected to an air inlet end of a safety helmet latch assembly (16) of the bottle mouth valve (3) through a second brake air pipe (15).

3. A spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions according to claim 1, characterized in that: The fire extinguishing agent recovery device comprises a smoke hood (33) arranged in the two demonstration grids (37), the rear ends of the two smoke hoods (33) are connected to an exhaust pipe (39), the two exhaust pipes (39) are provided with an exhaust fan (34), the rear ends of the two exhaust pipes (39) are connected to an electromagnetic reversing valve (40), the output end of the electromagnetic reversing valve (40) is connected to a gas compressor (35) through a pipeline, the output end of the gas compressor (35) is provided with an electromagnetic reversing valve (41), the two output ports of the electromagnetic reversing valve (41) are connected to recovery pipes (42) respectively connected to the two fire extinguishing agent bottles (1), and the recovery pipe (42) is provided with a second one-way valve (36).

4. A spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions according to claim 3, characterized in that: The second brake air pipes (15) of the two driving air cylinders (4) are connected to an electromagnetic reversing valve (47), and the two output ends of the electromagnetic reversing valve (47) are connected to the bottle mouth valves (3) of the two fire extinguishing agent bottles (1).

5. A spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions according to claim 4, characterized in that: A combustion tray (21) is arranged in the demonstration grid (37), and a feed inclined pipe (22) is arranged on one side of the outer wall of the demonstration grid (37) and extends obliquely downward to above the combustion tray (21).

6. A spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions according to claim 5, characterized in that: A stop valve (43) is provided at the outer end of the feed inclined tube (22), and a discharge trough (44) is provided on the feed inclined tube (22).

7. A spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions according to claim 5, characterized in that: The side wall of the demonstration grid (37) is provided with an operating hole (24) for the long-handled igniter (23) to extend into the combustion tray (21), and a sealing rubber ring matched with the sleeve of the long-handled igniter (23) is provided in the operating hole (24).

8. The spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions according to claim 5 is characterized in that: A blower (45) is provided at one end of the gas supply main pipe (7), and an electric butterfly valve (46) is provided at the outlet of the blower (45).

9. The spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions according to claim 5 is characterized in that: A foot pump (31) is connected to the bottle mouth of the driving gas cylinder (4) and is connected to its inner cavity through a hose. A first one-way valve (32) is provided on the hose connecting the foot pump (31) and the driving gas cylinder (4). A second pressure gauge (48) is provided on the hose between the first one-way valve (32) and the driving gas cylinder (4).

10. The spray-type fire extinguishing demonstration system with anti-pollution and automatic recovery functions according to claim 1 is characterized in that: The gas supply main pipe (7) is provided with a pressure relief valve (29), and the two gas supply branch pipes (9) are provided with a first pressure gauge (30) downstream of the zone selection valve (10).

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