Fire extinguishing microcapsule preparation device

Abstract

The utility model provides a fire extinguishing microcapsule preparation device, and relates to the technical field of microcapsule preparation, the fire extinguishing microcapsule preparation device comprises a reaction kettle, one side of the top of the reaction kettle is fixedly connected with a fixed plate, the bottom of the fixed plate is provided with a cylinder, and a washing mechanism is arranged above the reaction kettle; the washing mechanism comprises a rotating sleeve, a limiting frame and a lifting frame, a lifting plate is fixedly connected to one side of the lifting frame, the output end of the air cylinder is fixedly connected with the lifting plate, a tooth groove is formed in the inner side of the limiting frame, a limiting hole is formed in one side of the limiting frame, and a rotating rod is rotationally connected to one side of the lifting frame; and one end of the rotating rod penetrates through the limiting hole. According to the utility model, through the operation of the air cylinder, the spray heads on the spray plate can be controlled to spray a detergent, and unreacted substrates, by-products and impurities generated in the reaction process in products are effectively removed, so that the purity and the quality of a perfluorohexane fire extinguishing agent in microcapsules are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of microcapsule preparation, in particular to a fire extinguishing microcapsule preparation device. Background Art

[0002] Microcapsule technology converts liquid fire extinguishing agent into solid fire extinguishing agent. Under high temperature conditions, the microcapsules burst and release the fire extinguishing agent to achieve the effect of fire extinguishing and flame retardant. The microcapsules are powdered solids and can be filled inside porous materials. They can be made into coatings and applied to the surface of materials. The perfluorohexane fire extinguishing agent is used to fill the microcapsules and can have a green, safe and pollution-free fire extinguishing effect.

[0003] For example, Chinese patent CN219942770U discloses a high-stability fire-extinguishing microcapsule preparation device, which includes a fixed shell, a group of support legs fixedly connected to the surface of the fixed shell, a cooling box installed inside the fixed shell, and a drainage assembly fixedly connected to the bottom of the cooling box.

[0004] In the prior art, during the preparation of perfluorohexane, the reaction of converting n-hexane into perfluorohexane is mainly a fluorination reaction. In this process, not only perfluorohexane is produced, but also some impurities dissolved in the product are stored in the n-hexane solution. In addition, due to the presence of impurities, unreacted substrates and by-products will also appear. Utility Model Content

[0005] The utility model mainly provides a fire extinguishing microcapsule preparation device which is convenient for improving the preparation quality of fire extinguishing agent and preventing the accumulation of impurities in a reaction kettle.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fire extinguishing microcapsule preparation device, comprising a reaction kettle, a fixing plate is fixedly connected to one side of the top of the reaction kettle, a cylinder is installed at the bottom of the fixing plate, and a washing mechanism is installed above the reaction kettle;

[0007] The washing mechanism includes a rotating sleeve, a limiting frame and a lifting frame, one side of the lifting frame is fixedly connected to a lifting plate, the cylinder output end is fixedly connected to the lifting plate, a tooth groove is provided on the inner side of the limiting frame, and a limiting hole is provided on one side of the limiting frame, one side of the lifting frame is rotatably connected to a rotating rod, one end of the rotating rod passes through the limiting hole, and the outer surface of one end of the rotating rod is fixedly connected to a power gear, the power gear is meshed with the tooth groove, both ends of the rotating sleeve pass through the lifting frame, and the rotating sleeve is rotatably connected to the lifting frame, and the bottom of the rotating sleeve is fixedly connected to a spray plate.

[0008] Preferably, a slide bar is fixedly connected to the top of the lifting plate, and the slide bar is slidably connected to the lifting frame. The lifting plate can slide on the surface of the slide bar, thereby ensuring that the lifting plate is stable when it is lifted or lowered.

[0009] Preferably, a baffle is fixedly connected to the top of the slide bar, and the top of the reactor is fixedly connected to a feed inlet. Reactive substances can be added through the feed inlet, and the baffle can play a role of limiting.

[0010] Preferably, a gas outlet is fixedly connected to the top of one side of the reactor, and a sewage outlet is fixedly connected to the bottom of one side of the reactor. Sewage can be discharged through the sewage outlet, and the generated gas can be discharged through the gas outlet on one side of the reactor.

[0011] Preferably, one end of the rotating rod is fixedly connected to a driving bevel gear, and one side of the driving bevel gear is meshedly connected to a driven bevel gear. When the rotating rod drives the driving bevel gear to rotate together, it also drives the meshed driven bevel gear to rotate together.

[0012] Preferably, the inner side of the driven bevel gear is fixedly connected to the outer wall of the rotating sleeve, and a liquid inlet pipe is installed on the top of the rotating sleeve. When the active bevel gear drives the meshing driven bevel gear to rotate together, the rotating sleeve will rotate together.

[0013] Preferably, the bottom and outer edge of the spray plate are fixedly mounted with spray heads, the bottom end of the liquid inlet pipe passes through the rotating sleeve, and the liquid inlet pipe is fixedly connected to the spray plate. The multiple spray heads on the spray plate can spray detergent, thereby washing the reactor.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are:

[0015] 1. In the utility model, the operation of the cylinder can control the nozzle on the spray plate to spray detergent, effectively removing the unreacted substrate, by-products and impurities generated in the reaction process in the product, thereby improving the purity and quality of the perfluorohexane fire extinguishing agent in the microcapsule.

[0016] 2. In the utility model, the lifting movement of the lifting frame controls the movement of the rotating sleeve, driving the up and down movement and rotation of the spray plate, so that the detergent can fully cover all areas inside the reactor, ensuring a thorough and comprehensive washing process and maximizing the washing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a fire extinguishing microcapsule preparation device proposed by the utility model;

[0018] Figure 2 The utility model provides a schematic diagram of the washing mechanism structure of a fire extinguishing microcapsule preparation device;

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the washing mechanism of a fire extinguishing microcapsule preparation device proposed by the utility model;

[0020] Figure 4 The utility model provides a schematic structural diagram of a rotating sleeve and a spray plate of a fire extinguishing microcapsule preparation device.

[0021] Legend: 1. Reactor; 11. Drain outlet; 12. Fixed plate; 13. Feed inlet; 14. Cylinder; 15. Air outlet; 2. Washing mechanism; 21. Lifting plate; 211. Sliding rod; 212. Baffle; 22. Limiting frame; 221. Limiting hole; 222. Tooth groove; 23. Power gear; 24. Rotating rod; 241. Active bevel gear; 25. Lifting frame; 26. Rotating sleeve; 261. Driven bevel gear; 27. Spraying plate; 271. Spray head; 3. Liquid inlet pipe. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] The utility model aims at preparing a fire extinguishing microcapsule structure, which includes a core and a shell layer wrapping the core, wherein the core is composed of a perfluorinated fire extinguishing agent, and the shell layer is composed of a polymer material, specifically a melamine urea-formaldehyde resin. The preparation process of the fire extinguishing microcapsule includes the following steps:

[0025] Step 1: Synthesizing shell prepolymer MUF prepolymer;

[0026] Take 10 parts of melamine, 10 parts of urea, 30 parts of formaldehyde solution and 30 parts of distilled water, adjust the pH to 8.5-9 with anhydrous ammonium carbonate, heat from 30°C to 70°C in a water bath at a rate of 2.5°C / min, stir for 1 hour, put into ice water, and quickly reduce the temperature to below 40°C to obtain a shell prepolymer MUF prepolymer;

[0027] Part II: Synthesis of core-shell microcapsules;

[0028] Take 10 parts of perfluorohexanone, 10 parts of heptafluorocyclopentane, 100 parts of MUF prepolymer, and 1 part of potassium perfluorooctane sulfonate, stir at 500 rpm for 6 hours, then let stand for at least 6 hours, and filter to obtain microcapsules.

[0029] For the device for preparing fire extinguishing microcapsules, please refer to Figure 1 - Figure 4, comprising a reactor 1, a fixing plate 12 is fixedly connected to one side of the top of the reactor 1, a cylinder 14 is installed at the bottom of the fixing plate 12, and a washing mechanism 2 is installed above the reactor 1;

[0030] The washing mechanism 2 includes a rotating sleeve 26, a limiting frame 22 and a lifting frame 25. A lifting plate 21 is fixedly connected to one side of the lifting frame 25. The output end of the cylinder 14 is fixedly connected to the lifting plate 21. A tooth groove 222 is provided inside the limiting frame 22, and a limiting hole 221 is provided on one side of the limiting frame 22. A rotating rod 24 is rotatably connected to one side of the lifting frame 25. One end of the rotating rod 24 passes through the limiting hole 221, and a power gear 23 is fixedly connected to the outer surface of one end of the rotating rod 24. The power gear 23 is meshed and connected with the tooth groove 222. Both ends of the rotating sleeve 26 pass through the lifting frame 25, and the rotating sleeve 26 is rotatably connected to the lifting frame 25. A spray plate 27 is fixedly connected to the bottom of the rotating sleeve 26. When the lifting frame 25 is lifted or lowered, the height of the rotating rod 24 will also be controlled, so that the rotating rod 24 controls the power gear 23 to move inside the limiting frame 22 under the restriction of the limiting hole 221. When the power gear 23 moves, it will be restricted by the tooth groove 222 and will start to rotate. At this time, the power gear 23 will drive the rotating rod 24 to rotate together, so that the rotating rod 24 will also drive the active bevel gear 241 to rotate together. As the active bevel gear 241 drives the meshing driven bevel gear 261 to rotate together, the rotating sleeve 26 will rotate together. At this time, the spray plate 27 will also start to rotate when it is raised and lowered for washing, thereby improving the washing effect. Since the liquid inlet pipe 3 is made of a hose material and the liquid inlet pipe 3 passes through the rotating sleeve 26, its diameter is smaller than the inner diameter of the rotating sleeve 26, so when the rotating sleeve 26 rotates, it will not affect the liquid inlet pipe 3.

[0031] like Figure 2 As shown, a slide bar 211 is fixedly connected to the top of the lifting plate 21, and the slide bar 211 is slidably connected to the lifting frame 25. The lifting plate 21 can slide on the surface of the slide bar 211, thereby ensuring that the lifting plate 21 is stable when it is lifted or lowered.

[0032] like Figure 2 As shown, a baffle 212 is fixedly connected to the top of the slide bar 211, and the top of the reactor 1 is fixedly connected to the feed inlet 13. The reactant material can be added through the feed inlet 13, and the baffle 212 can play a role of limiting.

[0033] like Figure 1 As shown, a gas outlet 15 is fixedly connected to the top of one side of the reactor 1, and a sewage outlet 11 is fixedly connected to the bottom of one side of the reactor 1. The sewage outlet 11 can be used to discharge sewage, and the generated gas can be discharged through the gas outlet 15 on one side of the reactor 1.

[0034] like Figure 3As shown, one end of the rotating rod 24 is fixedly connected to a driving bevel gear 241, and one side of the driving bevel gear 241 is meshedly connected to a driven bevel gear 261. When the rotating rod 24 drives the driving bevel gear 241 to rotate together, it also drives the meshed driven bevel gear 261 to rotate together.

[0035] like Figure 3 As shown, the inner side of the driven bevel gear 261 is fixedly connected to the outer wall of the rotating sleeve 26, and a liquid inlet pipe 3 is installed on the top of the rotating sleeve 26. When the active bevel gear 241 drives the meshing driven bevel gear 261 to rotate together, the rotating sleeve 26 will rotate together.

[0036] like Figure 4 As shown, the bottom and outer edge of the spray plate 27 are fixedly installed with spray heads 271, the bottom end of the liquid inlet pipe 3 passes through the rotating sleeve 26, and the liquid inlet pipe 3 is fixedly connected to the spray plate 27. The multiple spray heads 271 on the spray plate 27 can spray detergent, so that the reactor 1 can be cleaned.

[0037] The use method and working principle of the device: When preparing microcapsules, perfluorohexane is prepared using the reactor 1. At this time, the reactor 1 can be used to discharge the gas generated during the reaction, and the reacting material can be added through the feed port 13. The sewage outlet 11 can be used for sewage discharge, and the generated gas can be discharged through the gas outlet 15 on one side of the reactor 1.

[0038] When the cylinder 14 starts to run, it can drive the lifting plate 21 to start moving up and down. As the lifting plate 21 rises and falls, the lifting frame 25 can be driven to rise and fall together, so that the rotating sleeve 26 can be controlled to move together. When the rotating sleeve 26 moves up and down, the spray plate 27 can be controlled to rise and fall together. At this time, the spray plate 27 starts to move from the top of the inner cavity of the reactor 1 to the bottom. In this process, the multiple nozzles 271 on the spray plate 27 can be used to spray detergent, so that the reactor 1 can be washed, so as to remove unreacted substrates, by-products and impurities generated during the reaction process in the product.

[0039] When the lifting frame 25 is lifted or lowered, it will also control the height of the rotating rod 24, so that the rotating rod 24 controls the power gear 23 to move inside the limiting frame 22 under the restriction of the limiting hole 221. When the power gear 23 is moving, it will be restricted by the tooth groove 222, so that it will start to rotate. At this time, the power gear 23 will drive the rotating rod 24 to rotate together, so that the rotating rod 24 will also drive the active bevel gear 241 to rotate together. As the active bevel gear 241 drives the meshing driven bevel gear 261 to rotate together, the rotating sleeve 26 will rotate together. At this time, the spray plate 27 will also start to rotate when it is lifted or lowered for washing, thereby improving the washing effect. Since the liquid inlet pipe 3 is made of a hose material, and the liquid inlet pipe 3 passes through the rotating sleeve 26, its diameter is smaller than the inner diameter of the rotating sleeve 26, so when the rotating sleeve 26 rotates, it will not affect the liquid inlet pipe 3.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A fire extinguishing microcapsule preparation device, comprising a reaction kettle (1), a fixing plate (12) fixedly connected to one side of the top of the reaction kettle (1), a cylinder (14) installed at the bottom of the fixing plate (12), characterized in that: A washing mechanism (2) is installed above the reaction kettle (1); The washing mechanism (2) comprises a rotating sleeve (26), a limiting frame (22) and a lifting frame (25); one side of the lifting frame (25) is fixedly connected to a lifting plate (21); the output end of the cylinder (14) is fixedly connected to the lifting plate (21); a tooth groove (222) is provided on the inner side of the limiting frame (22); and a limiting hole (221) is provided on one side of the limiting frame (22); one side of the lifting frame (25) is rotatably connected to a rotating rod (24); one end of the rotating rod (24) passes through the limiting hole (221); and the outer surface of one end of the rotating rod (24) is fixedly connected to a power gear (23); the power gear (23) is meshedly connected to the tooth groove (222); both ends of the rotating sleeve (26) pass through the lifting frame (25); the rotating sleeve (26) is rotatably connected to the lifting frame (25); and the bottom of the rotating sleeve (26) is fixedly connected to a spray plate (27).

2. The fire extinguishing microcapsule preparation device according to claim 1, characterized in that: A sliding rod (211) is fixedly connected to the top of the lifting plate (21), and the sliding rod (211) is slidably connected to the lifting frame (25).

3. The fire extinguishing microcapsule preparation device according to claim 2, characterized in that: The top of the sliding rod (211) is fixedly connected to a baffle (212), and the top of the reaction kettle (1) is fixedly connected to a feed port (13).

4. The fire extinguishing microcapsule preparation device according to claim 2, characterized in that: A gas outlet (15) is fixedly connected to the top of one side of the reaction kettle (1), and a sewage outlet (11) is fixedly connected to the bottom of one side of the reaction kettle (1).

5. The fire extinguishing microcapsule preparation device according to claim 2, characterized in that: One end of the rotating rod (24) is fixedly connected to a driving bevel gear (241), and one side of the driving bevel gear (241) is meshingly connected to a driven bevel gear (261).

6. The fire extinguishing microcapsule preparation device according to claim 5, characterized in that: The inner side of the driven bevel gear (261) is fixedly connected to the outer wall of the rotating sleeve (26), and a liquid inlet pipe (3) is installed on the top of the rotating sleeve (26).

7. The fire extinguishing microcapsule preparation device according to claim 6, characterized in that: The bottom and outer edge of the spray plate (27) are fixedly mounted with spray heads (271); the bottom end of the liquid inlet pipe (3) passes through the rotating sleeve (26), and the liquid inlet pipe (3) is fixedly connected to the spray plate (27).

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