Novel clean environment-friendly fire extinguishing agent intelligent preparation and injection recovery experiment system

Abstract

The invention relates to the technical field of fire extinguishing agent preparation, and provides a novel clean environment-friendly fire extinguishing agent intelligent preparation and injection recovery experiment system. In the platform, the temperature of a premixing chamber and the proportion of particles to foam liquid are intelligently controlled according to a preset temperature through a regulation and control platform, and premixed liquid with different temperatures and proportions is generated; through a proportioning mixer arranged between a premixing chamber and a foaming chamber, premixed liquid is intelligently mixed and a liquid medium is introduced according to a preset proportion of a regulation and control platform, the mixed liquid is fed into the foaming chamber, and foaming is performed according to gas, a bio-based foaming agent, a bio-based foam stabilizer and the mixed liquid according to preset types and proportions; and the novel clean environment-friendly fire extinguishing agent is sprayed through a spraying nozzle connected with the foaming chamber under the control of the regulation and control platform. The turning cover plate is arranged between the foaming chamber and the recovery chamber, and the opening and closing states of the turning cover plate are controlled and changed through the regulation and control platform, so that residual foam in the foaming chamber is fed into the recovery chamber to realize separation and respective collection of solid components and liquid components.

Description

Technical Field

[0001] This application relates to the technical field of fire extinguishing agents, and particularly to an intelligent preparation, spraying and recovery experimental system for a new type of clean and environment-friendly fire extinguishing agent. Background Art

[0002] Traditional foam fire extinguishing agent preparation systems often rely on manual operation and empirical judgment, lacking automated intelligent monitoring and data analysis functions during the preparation process; during the fire extinguishing process, it is impossible to automatically adjust the foam ratio, foaming amount, etc. according to the actual situation of the fire, resulting in low fire extinguishing efficiency and even possible resource waste, making the effect of foam fire extinguishing agent preparation poor in quickly responding to complex fire scenarios.

[0003] At the same time, hardware failures or software problems in the foam preparation system may cause equipment failure or improper operation, thereby affecting the fire extinguishing effect; in extreme environments such as high temperature and high pressure, the consequences of system failures are more serious and may even cause secondary disasters. Moreover, most traditional foam fire extinguishing agents are used once and then discarded, causing great resource waste and possibly having an adverse impact on the environment.

[0004] Therefore, there is an urgent need to provide a technical solution to address the above deficiencies in the prior art. Summary of the Invention

[0005] The purpose of this application is to provide an intelligent preparation, spraying and recovery experimental system for a new type of clean and environment-friendly fire extinguishing agent to solve or alleviate the problems existing in the above prior art.

[0006] To achieve the above purpose, this application provides the following technical solutions: This application provides an intelligent preparation, spraying and recovery experimental system for a new type of clean and environment-friendly fire extinguishing agent, including: a control platform, and a premixing chamber, a foaming chamber, and a recovery chamber arranged in sequence from top to bottom; the premixing chamber is used for preheating and premixing the incoming bio-based solid particles and foam liquid to generate a premixed liquid; A proportion mixer is provided between the foaming chamber and the premixing chamber, and the proportion mixer is used for mixing the generated premixed liquid with the incoming liquid medium according to a preset proportion to generate a mixed liquid and send it into the foaming chamber; the foaming chamber is used for foaming the incoming gas, bio-based foaming agent, bio-based foam stabilizer, and the mixed liquid with a preset proportion generated by the proportion mixer to generate a three-phase foam fire extinguishing agent and spray it through a spray nozzle connected to the foaming chamber; A turning cover plate is provided between the recycling chamber and the foaming chamber. After the turning cover plate changes from the first state to the second state, the remaining foam after being sprayed by the spray nozzle in the foaming chamber enters the recycling chamber, and the solid components and liquid components in the remaining foam are separated and collected in the recycling chamber. Wherein, when the turning cover plate is in the first state, it seals the foaming chamber and the recycling chamber, and when the turning cover plate is in the second state, it connects the foaming chamber and the recycling chamber. The regulation platform is respectively communicatively connected with the premixing chamber, the foaming chamber and the recycling chamber, and is used for setting and controlling the preheating and premixing operation in the premixing chamber, the preset ratio of the mixed liquid, the spraying of the three-phase foam fire extinguishing agent, and the state of the turning cover plate.

[0007] Preferably, in the premixing chamber, the first stirrer is arranged to stir and premix the incoming bio-based solid particles and the foam liquid. At the same time, during the stirring process, the regulation platform regulates the heating temperature of the preheating resistance wire provided to control the temperature of the generated premixed liquid.

[0008] Preferably, a solid feed area and a liquid feed area are respectively arranged on the premixing chamber to respectively introduce the bio-based solid particles and the foam liquid. Wherein, the solid feed area and the liquid feed area are respectively provided with a plurality of independent feed sub-areas, and the regulation platform independently controls the feed switches of each independent feed sub-area to intelligently allocate the components and ratios of the generated premixed liquid.

[0009] Preferably, first filter meshes are respectively arranged at the inlets of the solid feed area, and / or a second filter mesh is further arranged between the premixing chamber and the proportioning mixer; and / or the premixing chamber is in a funnel-shaped structure with a larger upper part and a smaller lower part.

[0010] Preferably, the foaming chamber uses the second stirrer to stir and foam the incoming gas, the bio-based foaming agent, the bio-based foam stabilizer and the preset ratio of the mixed liquid generated by the proportioning mixer to generate the three-phase foam fire extinguishing agent. Wherein, backflow preventers are arranged on the connecting pipelines of the bio-based foaming agent and the bio-based foam stabilizer to the foaming chamber.

[0011] Preferably, a spray washer is further arranged at the top in the foaming chamber. The spray washer is communicated with the liquid inlet of the proportioning mixer, and a spray switch is arranged on the communicating pipeline. The spray switch is communicatively connected with the regulation platform and is opened after receiving the spray instruction sent by the regulation platform to spray cleaning liquid to spray-wash the foaming chamber, so that the remaining foam in the foaming chamber enters the recycling chamber.

[0012] Preferably, it further includes: a gas recovery airbag, which is communicated with the foaming chamber through an airbag switch, is fixed to the outside of the foaming chamber by an automatic buckle, and when the pressure in the foaming chamber is greater than or equal to a preset pressure threshold, both the airbag switch and the automatic buckle are automatically opened for collecting the excess gas in the foaming chamber.

[0013] Preferably, the flip cover plate is controlled by a cover plate switch, and the cover plate switch is communicatively connected to the regulation platform to receive a state switching instruction sent by the regulation platform, so that the flip cover plate switches states between the first state and the second state.

[0014] Preferably, it further includes: a recovery drawer, which is arranged in the recovery chamber and is located below the flip cover plate for separating the solid components and liquid components in the remaining foam and collecting the solid components; and the recovery drawer is slidably matched with the recovery chamber and can be pulled out towards the outside of the foaming chamber.

[0015] Preferably, a third filter screen is further arranged in the recovery drawer for separating the solid components and liquid components in the remaining foam.

[0016] Advantageous effects: In the novel intelligent preparation, spraying and recovery experimental system for a clean and environment-friendly fire extinguishing agent provided by the embodiment of the present application, a premixing chamber, a foaming chamber and a recovery chamber are arranged in sequence from top to bottom. The regulation platform intelligently controls the preheating and premixing operations of the bio-based solid particles and foam liquid entering the premixing chamber to generate premixed liquids with different temperatures and ratios; a proportion mixer arranged between the premixing chamber and the foaming chamber mixes the generated premixed liquid with the introduced liquid medium according to the intelligent blending ratio of the regulation platform to generate a mixed liquid, and the mixed liquid is sent into the foaming chamber. The foaming chamber foams the introduced gas, bio-based foaming agent, bio-based foam stabilizer and the mixed liquid with a preset ratio and temperature generated by the proportion mixer to generate a three-phase foam fire extinguishing agent, and controls a spray nozzle connected to the foaming chamber through the regulation platform to spray.

[0017] A flip cover plate is arranged between the foaming chamber and the recovery chamber, and the state of the flip cover plate is changed through the regulation platform, so that after the flip cover plate changes from the first state of blocking the foaming chamber and the recovery chamber to the second state of communicating the foaming chamber and the recovery chamber, the remaining foam after spraying through the spray nozzle in the foaming chamber enters the recovery chamber, and the solid components and liquid components in the remaining foam are separated and collected in the recovery chamber.

[0018] Thus, according to different fire types, on-site environments, and fire developments, the control platform can automatically set and allocate the appropriate proportion of fire extinguishing agents, effectively avoiding the lag caused by manual intervention during the preparation process, as well as the influence of subjective and objective human factors on the preparation of foam fire extinguishing agents, ensuring the accurate ratio of fire extinguishing agents, and thus enabling the foam fire extinguishing agent to achieve the best fire extinguishing effect for specific scenarios. At the same time, the recovery chamber effectively recovers the sprayed foam, enabling the remaining foam to be reused, effectively reducing the consumption of foam fire extinguishing agents and resource waste; reducing the environmental pollution caused by waste foam and promoting the development of green and sustainable fire extinguishing technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The schematic diagrams in the specification forming a part of this application are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an improper limitation of this application. Among them: Figure 1 FIG. is a schematic structural diagram of a novel clean and environmentally friendly fire extinguishing agent intelligent preparation and spraying recovery experimental system according to some embodiments of this application; Figure 2 FIG. is a schematic structural diagram of the recovery chamber according to some embodiments of this application; Figure 3 is Figure 1 a schematic structural diagram of the solid feed area in Figure 4 is Figure 3 a schematic sectional view of the solid feed area in Figure 5 is Figure 1 a schematic structural diagram of the liquid feed area in Figure 6 FIG. is a schematic principle diagram of the automatic buckle according to some embodiments of this application; Figure 7 FIG. is an overall flowchart of a novel clean and environmentally friendly fire extinguishing agent intelligent preparation and spraying recovery experimental system according to some embodiments of this application; Figure 8 FIG. is a module diagram of the intelligent monitoring and control platform according to some embodiments of this application.

[0020] Description of the reference numerals: 1. Premixing chamber; 2. Foaming chamber; 3. Recycling chamber; 4. Proportion mixer; 5. Spray nozzle; 6. Gas recovery airbag; 7. First stirrer; 8. Solid feeding area; 9. Liquid feeding area; 10. First filter screen; 11. Preheating resistance wire; 12. Second filter screen; 13. Second stirrer; 14. Ball valve; 15. Backflow preventer; 16. Flipping cover plate; 17. Sprayer; 18. Third filter screen; 19. Independent feeding partition; 20. Automatic buckle; 21. Unlatching button; 22. Latch tongue; 23. Buckle piece; 24. Electromagnetic relay; 25. Spring. Detailed implementation manners

[0021] The following will describe the present application in detail with reference to the accompanying drawings and in combination with embodiments. Each example is provided by way of explanation of the present application rather than a limitation of the present application. In fact, those skilled in the art will clearly understand that modifications and variations can be made to the present application without departing from the scope or spirit of the present application. For example, features shown or described as part of one embodiment can be used in another embodiment to yield yet another embodiment. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the embodiments of the present invention shall fall within the scope protected by the embodiments of the present invention.

[0022] The degree of intelligence in the preparation of foam fire extinguishing agents directly affects their fire extinguishing efficiency, resource utilization rate, operation convenience, etc. With the development of technologies such as artificial intelligence, the Internet of Things, and big data, intelligence has become an important trend in the development of various technical systems, providing conditions for the development of intelligent fire extinguishing agent preparations that are efficient, environmentally friendly, and highly adaptable.

[0023] Traditional preparation of foam fire extinguishing agents often relies on manual operation and empirical judgment. The preparation process is affected by subjective and objective human factors, and the lag brought by manual intervention inevitably affects the fire extinguishing effect of the foam fire extinguishing agent. Based on this, the embodiments of the present application propose a new type of intelligent preparation and spraying recovery experimental system for clean and environment-friendly fire extinguishing agents, which is used to automatically select and mix fire extinguishing agents in appropriate proportions through a control platform during the preparation process of foam fire extinguishing agents, avoiding the lag brought by manual intervention during the preparation process and the influence of subjective and objective human factors on the preparation of foam fire extinguishing agents, ensuring the accurate proportioning of the fire extinguishing agent, and enabling the foam fire extinguishing agent to achieve the best fire extinguishing effect for specific scenarios.

[0024] As Figures 1 to 8As shown in the figure, the intelligent preparation, spraying and recovery experimental system for the new type of clean and environment-friendly fire extinguishing agent includes: a premixing chamber 1, a foaming chamber 2, a recovery chamber 3 and a control platform. Among them, the premixing chamber 1 is used to preheat and premix the bio-based solid particles (rice husk charcoal) and foam liquid for preparing the fire extinguishing agent that enter, generating a premixed liquid; then, the premixed liquid generated in the premixing chamber 1 enters the proportioning mixer 4, and in the proportioning mixer 4, it is mixed with the liquid medium (such as water) for generating the fire extinguishing agent according to a preset proportion, generating a mixed liquid and introducing it into the foaming chamber 2; in the foaming chamber 2, the gas (air, nitrogen, etc.) for generating the fire extinguishing agent, the bio-based foaming agent (saponin), the bio-based foam stabilizer (xanthan gum or hydroxyethyl starch), and the mixed liquid introduced from the proportioning mixer 4 are fully stirred and foamed to generate a three-phase fire extinguishing agent and spray it through the spray nozzle 5 connected to the foaming chamber 2. During the preparation of the fire extinguishing agent, the control platform is respectively communicatively connected to the premixing chamber 1, the foaming chamber 2 and the recovery chamber 3 to set and control the preheating and premixing operation in the premixing chamber 1, the preset proportion of the mixed liquid, the spraying of the three-phase fire extinguishing agent, and the state change of the turning cover plate 16.

[0025] During the preparation of the fire extinguishing agent, the temperature, pressure, flow rate and other parameters in the preparation process of the fire extinguishing agent are monitored in real time through temperature sensors, pressure sensors and flow sensors. Among them, the temperature and pressure in the premixing chamber 1 and the foaming chamber 2 are independently monitored through independently arranged temperature sensors and pressure sensors; the flow rates of the foam liquid, bio-based solid particles, liquid medium, cleaning liquid, bio-based foaming agent, bio-based foam stabilizer and gas are independently monitored through independently set flow sensors.

[0026] At the same time, the real-time monitoring data of the temperature sensors, pressure sensors and flow sensors are sent to the control platform (control panel, upper computer and data processor), and through the control platform, intelligent monitoring and control of the preparation process of the fire extinguishing agent are realized, and the corresponding switches of the foam liquid, bio-based solid particles, liquid medium, cleaning liquid, bio-based foaming agent, bio-based foam stabilizer, gas, spray nozzle 5, gas recovery airbag 6, etc. are effectively controlled to realize the automation of the preparation process of the fire extinguishing agent. Specifically, after the upper computer receives the real-time monitoring data, the data processor analyzes and processes the real-time monitoring data, and the temperature, pressure, etc. of the premixing chamber 1 and the foaming chamber 2 are displayed in real time on the control panel; when the real-time monitoring data exceeds the set threshold, the controller controls the corresponding switches of the foam liquid, bio-based solid particles, liquid medium, cleaning liquid, bio-based foaming agent, bio-based foam stabilizer, gas, spray nozzle 5, etc. to close, the gas recovery airbag 6 and the automatic buckle 20 switch to open, and at the same time, the sound and light alarm is turned on.

[0027] Therefore, according to different fire types, on-site environments, and fire developments, the control unit (computer) can automatically select bio-based solid particles, foam liquid, liquid medium, gas, bio-based foaming agent, bio-based foam stabilizer, etc. for generating the foam fire extinguishing agent, and proportion them according to appropriate ratios, effectively avoiding the lag caused by manual intervention during the preparation process, as well as the influence of subjective and objective human factors on the preparation of the foam fire extinguishing agent, ensuring the accurate proportion of the fire extinguishing agent; through the intelligent regulation and control during the preparation process of the foam fire extinguishing agent, the fire extinguishing response speed and accuracy of the foam fire extinguishing agent are greatly improved, so that the foam fire extinguishing agent can achieve the best fire extinguishing effect for specific scenarios.

[0028] In the embodiment of the present application, the first stirrer 7 provided in the premixing chamber 1 performs sufficient stirring and premixing operations on the bio-based solid particles and the foam liquid for generating the foam fire extinguishing agent. Specifically, a solid feed area 8 and a liquid feed area 9 are respectively provided on the premixing chamber 1 to respectively introduce the bio-based solid particles and the foam liquid required for the preparation of the foam fire extinguishing agent; among them, the solid feed area 8 and the liquid feed area 9 are respectively provided with a plurality of independent feed partitions 19, and the feed switches of each independent feed partition 19 are independently controlled through a regulation platform to intelligently proportion the components and ratios of the generated premixed liquid. Therefore, the separate and precise control of bio-based solid particles with different components and foam liquids with different components is realized, and the precise configuration of the premixed liquid of the foam fire extinguishing agent corresponding to different fire types, on-site environments, and fire developments is realized.

[0029] In a specific example, the lower end of the solid feed area 8 is communicated with the premixing chamber 1, adopting a funnel-shaped structure with a larger upper part and a smaller lower part, and is divided into a plurality of independent feed partitions 19 arranged in parallel and having a rectangular cross-section. Each independent feed partition 19 is respectively used to introduce bio-based solid particles with different components; the lower end of the liquid feed area 9 is communicated with the premixing chamber 1, and is arranged in parallel with the solid. It adopts a cylindrical structure, and a plurality of independent feed partitions 19 with circular cross-sections are arranged in parallel along the axial direction. Each independent feed partition 19 is respectively used to introduce foam liquids with different components.

[0030] A first filter screen 10 is provided at the inlet of the solid feed area 8. Through the first filter screen 10, the larger-particle-size particles in the bio-based solid particles for preparing the foam fire extinguishing agent are screened to avoid the accumulation and blockage of larger particles at the injection port, the foaming chamber 2 or the recovery chamber 3, which may cause safety problems such as explosion. The bio-based solid particles screened by the first filter screen 10 enter the premixing chamber 1 and are fully stirred and mixed with the foam liquid entering through the liquid feed area 9 under the action of the first stirrer 7. Among them, the first filter screen 10 is a metal filter screen, and the pore diameter is slightly larger than the bio-based solid particles; the first stirrer 7 is arranged in the premixing chamber 1 and is driven by a first driving member arranged outside the premixing chamber 1.

[0031] The bio-based solid particles and foam liquid that enter the premixing chamber 1 through the solid feeding area 8 and the liquid feeding area 9 are fully stirred in the premixing chamber 1 under the action of the first stirrer 7. At the same time, during the stirring process, preheating is carried out through the preheating resistance wire 11 arranged in the premixing chamber 1 to generate a premixed liquid. Among them, the heating temperature of the set preheating resistance wire 11 is regulated through a regulation platform to control the temperature of the generated premixed liquid. Specifically, the resistance wire used for preheating is arranged inside the premixing chamber 1 and connected to an external power source to heat the generated premixed liquid to a preset temperature, so as to accurately control the temperature of the premixed liquid with the best adaptation temperature for different fire types, on-site environments, and fire development.

[0032] In another specific example, the premixing chamber 1 adopts a funnel-shaped structure with a larger upper part and a smaller lower part. The premixed liquid generated by the premixing and preheating operation in the premixing chamber 1 is discharged from the outlet at the lower end of the premixing chamber 1 and enters the proportioning mixer 4 connected to the lower end outlet of the premixing chamber 1. Among them, a second filter screen 12 is also arranged between the premixing chamber 1 and the proportioning mixer 4. The second filter screen 12 adopts a metal filter screen with a pore size slightly larger than that of the bio-based solid particles to filter the bio-based solid particles with larger particle sizes in the premixed liquid.

[0033] The premixed liquid filtered by the second filter screen 12 enters the proportioning mixer 4, and after being mixed with the introduced liquid medium in the proportioning mixer 4 according to the preset ratio in the regulation platform, a mixed liquid is generated. Among them, the liquid medium (such as water) enters the proportioning mixer 4 through the liquid inlet arranged on the proportioning mixer 4 and is mixed with the premixed liquid in proportion to generate a mixed liquid.

[0034] The mixed liquid generated in the proportioning mixer 4 is sent to the foaming chamber 2, where it is mixed and foamed with the gas, bio-based foaming agent, and bio-based foam stabilizer introduced into the foaming chamber 2 to generate a three-phase foam fire extinguishing agent. Specifically, the second stirrer 13 fully stirs and foams the gas, bio-based foaming agent, bio-based foam stabilizer used to generate the foam fire extinguishing agent in the foaming chamber 2 and the mixed liquid with a preset ratio generated by the proportioning mixer 4 to generate a three-phase foam fire extinguishing agent. Among them, the second stirrer 13 is arranged in the foaming chamber 2 and is driven by a second driving member arranged outside the foaming chamber 2.

[0035] In a specific example, a ball valve 14 is also arranged at the gas inlet provided on the foaming chamber 2 to control the on-off of different types of gas pipelines connected to the gas inlet; here, it should be noted that at the same time, by controlling the ball valve 14, only one type of gas pipeline is connected to the gas inlet provided on the foaming chamber 2.

[0036] In this embodiment, the bio-based foaming agent and the bio-based foam stabilizer enter the foaming chamber 2 through the same inlet. That is to say, the bio-based foaming agent and the bio-based foam stabilizer are mixed outside the foaming chamber 2 and then introduced into the foaming chamber 2. At the same time, backflow preventers 15 are respectively provided at the inlets of the bio-based foaming agent, the bio-based foam stabilizer and the gas inlet to prevent the liquid in the foaming chamber 2 from flowing back into the inlets of the bio-based foaming agent, the bio-based foam stabilizer and the gas inlet due to excessive pressure in the foaming chamber 2.

[0037] After the gas, the bio-based foaming agent and the bio-based foam stabilizer enter the foaming chamber 2, they are fully stirred and foamed with a mixed liquid in a preset ratio under the action of the second stirrer 13. The generated three-phase foam fire extinguishing agent is sprayed through the spray nozzle 5 connected to the foaming chamber 2. Among them, a spray switch is also provided at the connection between the spray nozzle 5 and the foaming chamber 2. After the three-phase foam fire extinguishing agent is generated, the control platform controls the spray switch to open, so that the generated three-phase foam fire extinguishing agent is ejected from the spray port. Here, it should be noted that when the three-phase foam fire extinguishing agent is generated in the foaming chamber 2, the spray switch is opened to promptly eject the generated three-phase foam fire extinguishing agent, effectively reducing the pressure in the foaming chamber 2. When the pressure sensor provided in the foaming chamber 2 monitors that the pressure in the foaming chamber 2 exceeds the preset pressure threshold, the gas, the bio-based foaming agent, the bio-based foam stabilizer and the mixed liquid are controlled to enter the foaming chamber 2 to stop the reaction in the foaming chamber 2, so as to effectively avoid the explosion risk.

[0038] Among the generated three-phase foam fire extinguishing agents, most of them are sprayed, and there is still some foam fire extinguishing agent (remaining foam) left in the foaming chamber 2. In this application, by controlling the change of the state of the turning cover plate 16 provided between the foaming chamber 2 and the recovery chamber 3 through the control platform, the remaining foam in the foaming chamber 2 enters the recovery chamber 3, realizing the collection of the remaining foam in the foaming chamber 2. Among them, the turning cover plate 16 blocks the foaming chamber 2 and the recovery chamber 3 in the first state; in the second state, it connects the foaming chamber 2 and the recovery chamber 3.

[0039] In a specific example, the turning cover plate 16 is controlled by a set cover plate switch to switch between the first state and the second state. Specifically, the cover plate switch is communicatively connected to the control platform and receives the state switching instruction sent by the control platform to switch the state of the turning cover plate 16 between the first state and the second state.

[0040] After the flip cover plate 16 changes from the first state to the second state, the remaining foam after being sprayed by the spray nozzle 5 in the foaming chamber 2 enters the recovery chamber 3. Specifically, a washing liquid (such as water) is sprayed by a washer 17 provided at the top in the foaming chamber 2 to wash the foaming chamber 2, so that the remaining foam in the foaming chamber 2 enters the recovery chamber 3. Among them, the washer 17 is communicated with the liquid inlet of the proportioning mixer 4, and through a washing switch provided on the communication pipeline, the washing switch is communicatively connected with the control platform and is opened after receiving the washing instruction sent by the control platform to realize the washing of the inner wall of the foaming chamber 2, so that the remaining foam enters the recovery chamber 3.

[0041] After the remaining foam enters the recovery chamber 3, the solid components and liquid components in the remaining foam are separated and collected in the recovery chamber 3. Among them, a recovery drawer is provided below the flip cover plate 16, and the remaining foam in the foaming chamber 2 first passes through a third filter screen 18 provided in the recovery drawer to separate the solid components and liquid in the remaining foam. Here, it should be noted that the mesh gap of the third filter screen 18 is smaller than the particle size of the bio-based solid particles.

[0042] After solid-liquid separation through the third filter screen 18, the solid components are left in the recovery drawer, and the liquid components leak downward into the lower part of the recovery chamber 3. The solid components left in the recovery drawer are recovered by pulling out the recovery drawer outward; specifically, the recovery drawer and the recovery chamber 3 are slidably matched through tracks to realize the movement of the recovery drawer relative to the recovery chamber 3.

[0043] By the recovery chamber 3 recovering the remaining foam after foaming, the consumption and resources of the foam fire extinguishing agent are effectively reduced, and the environmental pollution caused by waste foam is reduced; at the same time, the excess gas in the foaming chamber 2 is also collected through a gas recovery airbag 6 communicated with the foaming chamber 2. Among them, the gas recovery airbag 6 is communicated with the foaming chamber 2 through an airbag switch, is fixed to the outside of the foaming chamber 2 through an automatic buckle 20, and when the internal pressure of the foaming chamber 2 is greater than or equal to the preset pressure threshold value, both the airbag switch and the automatic buckle 20 are automatically opened, and the excess gas in the foaming chamber 2 is collected through the gas recovery airbag 6. In addition, moving wheels, brake pads, etc. can be installed at the bottom of the recovery chamber 3 to move and fix the device.

[0044] Thereby, through the intelligent monitoring and control of the foam fire extinguishing agent preparation process, the appropriate fire extinguishing agent ratio is automatically selected to reduce the risk of manual operation errors; at the same time, the key parameters such as temperature and pressure during the fire extinguishing agent preparation process are monitored in real time, potential problems are identified in a timely and effective manner, and the early warning and alarm functions are realized to avoid secondary disasters caused by equipment failures or abnormal preparation reactions. The intelligent fault detection and early warning mechanism not only improves the fire extinguishing effect, but also significantly enhances the safety of operations, ensures the stable operation of the equipment, and reduces the fault risk.

[0045] In a specific example, during the preparation stage of the foam fire extinguishing agent, cement ash, fly ash, loess, and hollow glass microspheres are added to the four independent feeding partitions 19 of the solid feeding area 8 as solid-phase substances (bio-based solid particles). The types and proportions of the bio-based solid particles and the foam liquid added are controlled through the control panel. The first stirrer 7 is turned on to fully stir and premix the bio-based solid particles and the foam liquid. At the same time, the preheating resistance wire 11 is turned on for preheating to reach the optimal reaction temperature for foam preparation, accelerating the reaction to facilitate foam preparation and generating a premixed liquid with solid-phase mixing.

[0046] Then, the generated premixed liquid is mixed through the proportioning mixer 4 according to the ratio set by the host computer, and after generating the mixed liquid, it is introduced into the foaming chamber 2. At the same time, the types and proportions of the foaming agent, bio-based foam stabilizer, and gas added to the foaming chamber 2 are controlled through the host computer, and under the action of the second stirrer 13, it is fully stirred and mixed with the mixed liquid for foaming. During this period, the foam preparation process is monitored in real time through temperature, pressure, and flow sensors.

[0047] When preparing the foam, the injection switch is turned on so that the three-phase foam fire extinguishing agent generated in the foaming chamber 2 can be ejected in time through the injection nozzle 5. If the injection switch is not turned on, the pressure and temperature in the foaming chamber 2 will increase. Correspondingly, if the pressure, temperature, and flow sensors detect abnormalities, the switches of the corresponding mixed liquid, bio-based foaming agent, bio-based foam stabilizer, gas, etc. will be closed, and the preparation reaction of the fire extinguishing agent will be stopped in time.

[0048] After the three-phase foam fire extinguishing agent in the foaming chamber 2 is ejected through the injection nozzle 5 (or when the pressure in the foaming chamber 2 reaches the preset pressure threshold), the host computer is used to control the opening of the automatic buckle 20, so that the gas in the foaming chamber 2 enters the gas recovery airbag 6. The automatic buckle 20 adopts a structural principle similar to that of a seat belt buckle, and an electromagnetic relay 24 is added at the buckle piece 23 of the seat belt buckle and connected to the host computer. By inserting the buckle tongue 22 of the automatic buckle 20 into the buckle housing, the buckle piece 23 hooks the square hole on the buckle tongue 22 and is supported by the spring 25, so that the buckle is tightened to fix the gas recovery airbag 6. When the host computer sends an electrical signal to the electromagnetic relay 24 in the automatic buckle 20 or the release button 21 is pressed, the buckle piece 23 releases the buckle tongue 22, the buckle is loosened, and the gas recovery airbag 6 automatically opens.

[0049] At the same time, the host computer can also be used to control the switching of the flip cover plate 16 from the first state (closed state) to the second state (open state), and the spray cleaning switch is turned on to clean the foam on the container wall of the foaming chamber 2, fully recover the remaining foam, and make the remaining foam enter the recovery chamber 3. After the remaining foam is filtered through the third filter screen 18 of the recovery drawer in the recovery chamber 3, the bio-based solid particles are recovered, and the filtered foam liquid flows into the liquid recovery cavity to realize the recovery, treatment, and reuse of the remaining foam.

[0050] During the reaction preparation process of the foam fire extinguishing agent, the reaction temperature, pressure, and flow rate are monitored in real time through temperature, pressure, and flow sensors installed in the premixing chamber 1, foaming chamber 2, etc., and the monitored data is sent to the host computer and data processor. If an abnormality occurs in the preparation reaction, all reaction switches are immediately turned off, the preparation reaction is aborted, and an inspection is carried out. Only after ensuring there are no safety hazards can the preparation reaction be restarted.

[0051] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0052] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connection", "fix", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Further, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0055] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0056] The foregoing are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various modifications and variations can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A novel intelligent preparation, spraying and recovery experimental system for clean and environment-friendly fire extinguishing agents, characterized in that, Including: A control platform, a premixing chamber, a foaming chamber and a recycling chamber arranged in sequence from top to bottom; The premixing chamber is used for preheating and premixing the incoming bio-based solid particles and foam liquid to generate a premixed liquid; A proportioning mixer is arranged between the foaming chamber and the premixing chamber. The proportioning mixer is used for mixing the generated premixed liquid and the incoming liquid medium according to a preset proportion to generate a mixed liquid and sending it into the foaming chamber; the foaming chamber is used for foaming the incoming gas, bio-based foaming agent, bio-based foam stabilizer and the mixed liquid with a preset proportion generated by the proportioning mixer to generate a three-phase foam fire extinguishing agent and spraying it through a spray nozzle connected to the foaming chamber; A turning cover plate is arranged between the recycling chamber and the foaming chamber. After the turning cover plate changes from the first state to the second state, the remaining foam after being sprayed by the spray nozzle in the foaming chamber enters the recycling chamber, and the solid components and liquid components in the remaining foam are separated and collected in the recycling chamber; wherein, when the turning cover plate is in the first state, it seals the foaming chamber and the recycling chamber, and when the turning cover plate is in the second state, it connects the foaming chamber and the recycling chamber; The control platform is respectively communicatively connected to the premixing chamber, the foaming chamber and the recycling chamber, and is used for setting and controlling the preheating and premixing operation in the premixing chamber, the preset proportion of the mixed liquid, the spraying of the three-phase foam fire extinguishing agent, and the state of the turning cover plate.

2. The intelligent preparation, spraying and recovery experiment system for the new type of clean and environment-friendly fire extinguishing agent according to claim 1, wherein In the premixing chamber, the incoming bio-based solid particles and the foam liquid are stirred and premixed by a first stirrer arranged therein. At the same time, during the stirring process, the heating temperature of the preheating resistance wire arranged is regulated by the control platform to control the temperature of the generated premixed liquid.

3. The intelligent preparation, spraying and recovery experiment system for the new type of clean and environment-friendly fire extinguishing agent according to claim 1, characterized in that, A solid feed area and a liquid feed area are respectively arranged on the premixing chamber to respectively introduce the bio-based solid particles and the foam liquid; Wherein, a plurality of independent feed sub-areas are respectively arranged in the solid feed area and the liquid feed area, and the feed switches of each independent feed sub-area are independently controlled by the control platform to intelligently allocate the components and ratios of the generated premixed liquid.

4. The intelligent preparation, spraying and recovery experimental system for the new type of clean and environment-friendly fire extinguishing agent according to claim 3, wherein, First filter meshes are respectively arranged at the inlets of the solid feed area, and / or a second filter mesh is further arranged between the premixing chamber and the proportioning mixer; and / or, the premixing chamber is in a funnel-shaped structure with a larger upper part and a smaller lower part.

5. The intelligent preparation, spraying and recovery experiment system for the novel clean and environment-friendly fire extinguishing agent according to claim 1, wherein The foaming chamber stirs and foams the incoming gas, the bio-based foaming agent, the bio-based foam stabilizer and the mixed liquid with a preset proportion generated by the proportioning mixer to generate the three-phase foam fire extinguishing agent; Wherein, a backflow preventer is arranged on the connecting pipeline of the bio-based foaming agent and the bio-based foam stabilizer to the foaming chamber.

6. The intelligent preparation, spraying and recovery experiment system for the new type of clean and environment-friendly fire extinguishing agent according to claim 1, wherein, A spray washer is further provided at the top of the foaming chamber. The spray washer is communicated with the liquid inlet of the proportion mixer, and a spray washer switch is arranged on the communication pipeline. The spray washer switch is communicatively connected with the control platform and is opened after receiving the spray instruction sent by the control platform to spray cleaning liquid to wash the foaming chamber, so that the remaining foam in the foaming chamber enters the recovery chamber.

7. The intelligent preparation, spraying and recycling experimental system for the new type of clean and environment-friendly fire extinguishing agent according to claim 1, wherein, It further includes: A gas recovery airbag, which is communicated with the foaming chamber through an airbag switch, is fixed to the outside of the foaming chamber through an automatic buckle, and when the pressure in the foaming chamber is greater than or equal to a preset pressure threshold, both the airbag switch and the automatic buckle are automatically opened for collecting the excess gas in the foaming chamber.

8. The intelligent preparation, spraying and recovery experiment system for the new type of clean and environment-friendly fire extinguishing agent according to claim 1, characterized in that, The flip cover plate is controlled by a cover plate switch. The cover plate switch is communicatively connected with the control platform and receives the state switching instruction sent by the control platform to switch the state of the flip cover plate between the first state and the second state.

9. The intelligent preparation, spraying and recovery experimental system of the novel clean and environment-friendly fire extinguishing agent according to claim 1, wherein, It further includes: A recovery drawer, which is arranged in the recovery chamber and is located below the flip cover plate, is used for separating the solid components and liquid components in the remaining foam and collecting the solid components; and the recovery drawer is slidably matched with the recovery chamber and can be pulled out of the foaming chamber.

10. The intelligent preparation, spraying and recovery experiment system for the novel clean and environment-friendly fire extinguishing agent according to claim 9, characterized in that, A third filter screen is further arranged in the recovery drawer for separating the solid components and liquid components in the remaining foam.

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