A wetting agent adding device for water-based fire extinguishing agent production

Abstract

The present application relates to fire extinguishing agent production equipment technical field, specifically to a kind of wetting agent adding device for water-based fire extinguishing agent production, including U-shaped frame, the middle part of one end of the U-shaped frame is slidably connected with connecting plate, one end of the connecting plate is fixedly installed with adjusting mechanism, the adjusting mechanism includes fixed round plate, rotating round plate is rotatably installed in the upper portion of the middle part of the fixed round plate, a plurality of straight line guide grooves are evenly formed in the outer side of the middle part of the fixed round plate.The present application can accurately change the flow area by adjusting the opening and closing of the adjusting plate, allowing users to control the flow rate of wetting agent as needed;At the same time, by driving the screw with the motor, the discharge pipe is immersed below the liquid level to add material silently, avoiding the occurrence of foaming phenomenon when adding wetting agent from the source, and cooperating with the tapered conduit diameter reduction slow flow and baffle shunt structure, it can effectively disperse high viscosity additives, prevent agglomeration, make the wetting agent mixture more uniform, and thus greatly improve production efficiency and product quality.

Description

Technical Field

[0001] This invention relates to the field of fire extinguishing agent production equipment technology, specifically to a wetting agent addition device for the production of water-based fire extinguishing agents. Background Technology

[0002] With the continuous development of science and technology and the ongoing improvement of social construction, fire safety protection is becoming increasingly important in production and daily life. There are a wide variety of fire extinguishing agents available, mainly including foam extinguishing agents, water-based liquid extinguishing agents, and dry powder extinguishing agents. Among these, wetting agents are not an independent category of extinguishing agents, but rather an essential functional additive in the preparation of water-based extinguishing agents. By adding wetting agents to water-based extinguishing agents, the surface tension of water can be effectively reduced, the penetration and wetting ability of the extinguishing agent can be improved, the extinguishing effect on porous solid combustibles can be enhanced, and reignition can be prevented. It is an indispensable key ingredient for optimizing the performance of water-based fire extinguishing systems.

[0003] In the production of water-based fire extinguishing agents, the base water agent must first be injected into a mixing tank for premixing, and then a quantitative and slow addition of wetting agent is made. However, traditional equipment often uses a simple straight pipe feeding structure with a lack of slow-flow guiding design. At the same time, the flow rate of the wetting agent is difficult to control, which can easily lead to localized concentrated feeding and instantaneous agglomeration. Since the wetting agent itself has high viscosity and is a surfactant, direct impact on the liquid surface can easily generate a large amount of foam, which not only prolongs the defoaming and settling time and slows down the production pace, but also easily leads to uneven dispersion and insufficient dissolution. This results in large differences in the concentration distribution of the liquid in the mixing tank, and unstable performance of batches of finished products, which has certain shortcomings. Summary of the Invention

[0004] The purpose of this invention is to provide a wetting agent addition device for the production of water-based fire extinguishing agents, so as to solve the problems in the background art mentioned above.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A wetting agent addition device for the production of water-based fire extinguishing agents includes a U-shaped frame. A connecting plate is slidably engaged with the middle of one end of the U-shaped frame. An adjustment mechanism is fixedly installed at one end of the connecting plate. The adjustment mechanism includes a fixed circular plate and a rotating circular plate rotatably mounted above the middle of the fixed circular plate. Multiple straight guide grooves are evenly formed around the outer periphery of the middle of the fixed circular plate, and arc-shaped guide grooves are formed around the outer periphery of the middle of the rotating circular plate. Multiple adjustment plates are slidably engaged with the middle of the rotating circular plate and the fixed circular plate. A top guide rod is fixedly installed at the upper end of each adjustment plate, and a bottom guide rod is fixedly installed at the lower end of each adjustment plate. An adjustment notch is formed on one side of the middle of the fixed circular plate, and an adjustment rod is fixedly installed on one side of the rotating circular plate. A U-shaped plate is fixedly mounted at one end of the adjustment rod, and the adjustment rod is slidably engaged with the middle of the adjustment notch. A cylinder is fixedly installed on one side of the connecting plate, and the output end of the cylinder is hinged to the U-shaped plate.

[0006] In some embodiments, a connecting block is fixedly installed at the middle of the other end of the U-shaped frame, a lead screw is fixedly installed on one side of the middle of one end of the U-shaped frame, and a guide rod is rotatably installed on the other side of the middle of one end of the U-shaped frame.

[0007] In some embodiments, a motor is fixedly installed on the other side of the upper middle part of the U-shaped frame, and the output end of the motor is fixedly connected to the guide rod.

[0008] In some embodiments, the lead screw is slidably engaged with one side of the middle portion of the connecting block, and the guide rod is threadedly connected to the other side of the middle portion of the guide rod.

[0009] In some embodiments, support rods are fixedly installed around the outer perimeter of the fixed circular plate, and a fixing ring is fixedly installed at the middle of one end of each of the support rods.

[0010] In some embodiments, a rigid conductive tube is fixedly installed in the middle of the fixed ring, a flexible conductive tube is connected to the upper end of the rigid conductive tube via a flange, and a rotating ring is fixedly installed on the outer side of the lower middle part of the rigid conductive tube.

[0011] In some embodiments, a limiting groove is provided above the outer side of the middle portion of the rotating circular plate, and the rotating ring is rotatably engaged in the middle portion of the limiting groove.

[0012] In some embodiments, a tapered conduit is fixedly connected to the middle of the lower end of the fixed circular plate, and a plurality of partitions are uniformly fixedly installed in the middle of the tapered conduit. A plurality of diversion pipes are formed between the plurality of partitions and the tapered conduit, and the upper diameter of the tapered conduit is larger than the lower diameter.

[0013] In some embodiments, both the fixed circular plate and the rotating circular plate have through holes in their middle portions, and the diameters of the through holes and the upper ends of the tapered conduit and the lower ends of the rigid conduit are matched.

[0014] In some embodiments, the plurality of top guide rods are slidably engaged with the corresponding arc-shaped guide grooves, the plurality of bottom guide rods are slidably engaged with the corresponding straight guide grooves, and the through holes can be completely closed when the plurality of adjustment plates are fully spliced ​​together.

[0015] The present invention has at least the following beneficial effects: 1. In use, the device uses a cylinder to drive the adjustment plate to open and close, which can precisely change the flow area, allowing the user to adjust the flow rate of the wetting agent as needed. At the same time, the motor drives the lead screw to immerse the feed pipe in the liquid surface for silent feeding, avoiding foaming when adding the wetting agent from the source. Combined with the tapered conical guide tube with narrowed diameter and slow flow and the baffle structure, it can effectively disperse high-viscosity additives, prevent agglomeration, and make the wetting agent mix more evenly, thereby greatly improving production efficiency and product quality, and ensuring that the wetting agent and the base water can be quickly and evenly dissolved and mixed.

[0016] 2. In use, the device employs a mechanical transmission and guiding / limiting structure, combined with support rods and fixing rings to uniformly support the rigid guide tube, and precise engagement between the rotating ring and the limiting groove. This effectively counteracts vibration and limits radial offset during the entire feeding process, preventing guide groove misalignment or adjustment plate jamming. Simultaneously, the rigid and flexible guide tubes are connected by flanges, and the expansion and contraction characteristics of the flexible guide tube adapt to the lifting and lowering displacement of the feed pipe, ensuring continuous material conveying. The device has a simple and reasonable structural design, low processing cost, and can adapt to liquid level changes in different sizes of mixing tanks, exhibiting strong versatility. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first external structure of the present invention; Figure 2 This is a schematic diagram of the second appearance structure of the present invention; Figure 3 This is a schematic diagram showing the connection relationship between the rigid and flexible conductive tubes of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram of region A in the middle; Figure 5 This is an exploded view of the adjusting mechanism of the present invention; Figure 6 This is a schematic diagram of the disassembled structure of the present invention; Figure 7 This is a schematic diagram of the disassembled structure of the adjustment mechanism of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the tapered conduit of the present invention.

[0018] In the diagram: 1. U-shaped frame; 11. Connecting block; 12. Guide rod; 13. Lead screw; 14. Motor; 15. Connecting plate; 16. Rigid guide tube; 161. Rotary ring; 17. Flexible guide tube; 18. Support rod; 19. Fixing ring; 2. Adjusting mechanism; 20. Limiting groove; 21. Fixed circular plate; 22. Straight guide groove; 23. Rotating circular plate; 24. Arc-shaped guide groove; 25. Through hole; 26. Adjusting plate; 27. Top guide rod; 28. Bottom guide rod; 30. Adjusting notch; 31. Adjusting rod; 32. U-shaped plate; 33. Cylinder; 34. Conical guide tube; 35. Partition plate; 36. Diverter pipe. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Example 1: Please refer to Figures 1-8This invention provides a technical solution: a wetting agent addition device for the production of water-based fire extinguishing agents, comprising a U-shaped frame 1, a connecting plate 15 slidably engaged at the middle of one end of the U-shaped frame 1, an adjusting mechanism 2 fixedly installed at one end of the connecting plate 15, the adjusting mechanism 2 comprising a fixed circular plate 21, a rotating circular plate 23 rotatably mounted above the middle of the fixed circular plate 21, a plurality of straight guide grooves 22 evenly formed around the outer periphery of the middle of the fixed circular plate 21, and arc-shaped guide grooves 24 formed around the outer periphery of the middle of the rotating circular plate 23, a plurality of adjusting plates 26 slidably engaged at the middle of the rotating circular plate 23 and the fixed circular plate 21, a top guide rod 27 fixedly installed at the upper end of each of the adjusting plates 26, and a bottom guide rod 28 fixedly installed at the lower end of each of the adjusting plates 26. An adjustment notch 30 is provided on one side of the middle of the circular plate 21. An adjustment rod 31 is fixedly installed on one side of the rotating circular plate 23. A U-shaped plate 32 is fixedly installed at one end of the adjustment rod 31. The adjustment rod 31 is slidably engaged with the middle of the adjustment notch 30. A cylinder 33 is fixedly installed on one side of the connecting plate 15. The output end of the cylinder 33 is hinged to the U-shaped plate 32. A through hole 25 is provided in the middle of both the fixed circular plate 21 and the rotating circular plate 23. The diameter of the upper end of the through hole 25 matches the diameter of the tapered guide tube 34 and the diameter of the lower end of the rigid guide tube 16. Multiple top guide rods 27 are slidably engaged with the corresponding arc-shaped guide grooves 24. Multiple bottom guide rods 28 are slidably engaged with the corresponding straight guide grooves 22. When multiple adjustment plates 26 are fully spliced, the through hole 25 can be completely closed.

[0022] In this embodiment, the cylinder 33 drives the adjusting rod 31 to rotate the circular plate. The linkage between the arc-shaped guide groove 24 and the straight guide groove 22 guides the multiple sets of adjusting plates 26 to open and close radially synchronously. The cross-sectional area of ​​the central through-hole 25 can be freely changed, allowing for stepless fine-tuning from fully closed to fully open. This precisely controls the flow rate and velocity of the liquid wetting agent, adapting to different formulation concentrations and production capacities. The proportioning control accuracy is far higher than that of a fixed-diameter structure. The multiple sets of adjusting plates 26 are respectively engaged with the corresponding guide grooves by the upper and lower guide rods, and their movement trajectories are mutually constrained. When rotating and adjusting, all adjusting plates 26 move in unison and open and close evenly. After the adjusting plates 26 are assembled, they can completely seal the through hole 25, realizing different functions such as full passage, throttling, and complete material cut-off. The seal is tight and there is no leakage, which can effectively avoid the dripping and waste of wetting agent and pollution. By precisely reducing the diameter of the flow hole 25, the flow rate of the wetting agent is slowed down. Together with the cone-shaped flow guide structure below, the flow is stabilized and pressure is reduced, avoiding the formation of foam by the impact of the liquid surface due to excessive flow rate. At the same time, it alleviates the problem of concentrated feeding of high viscosity additives, helps to improve the uniformity of later mixing, and ensures the stable quality of the finished fire extinguishing agent.

[0023] Example 2: Figures 1-6As shown, a connecting block 11 is fixedly installed in the middle of the other end of the U-shaped frame 1, a lead screw 13 is fixedly installed on one side of the middle of one end of the U-shaped frame 1, a guide rod 12 is rotatably installed on the other side of the middle of one end of the U-shaped frame 1, a motor 14 is fixedly installed on the other side of the middle of the upper end of the U-shaped frame 1, the output end of the motor 14 is fixedly connected to the guide rod 12, the lead screw 13 is slidably engaged with one side of the middle of the connecting block 11, and the guide rod 12 is threadedly connected to the other side of the middle of the guide rod 12.

[0024] In this embodiment, the U-shaped frame 1 is connected to external equipment via the connecting block 11. The motor 14 drives the lead screw 13 and guide rod 12 to transmit synchronously, which can drive the connecting plate 15 to move smoothly up and down along the frame. It can accurately control the height position of the lower adjustment mechanism 2 and the discharge pipe. It can both raise the work position for easy maintenance and cleaning, and accurately lower it to immerse the discharge pipe below the liquid surface, realizing silent feeding below the liquid surface. Structurally, it avoids the wetting agent from impacting the liquid surface and causing foaming and splashing. The lead screw 13 transmission and the double-rail limiting structure of the guide rod 12 ensure uniform force, no shaking, and no eccentricity during the lifting process, ensuring that the center position of the discharge is always stable. It avoids pipe bending and alignment deviation caused by lifting deviation, improves the long-term operating stability of the device, and the lifting stroke can be adjusted by the forward and reverse rotation of the motor 14. The immersion depth of the discharge can be flexibly adjusted according to the liquid level in the mixing tank, adapting to different production conditions and batch liquid level changes. It has strong versatility and wide applicability.

[0025] Example 3: As Figures 1-8 As shown, support rods 18 are fixedly installed around the outer perimeter of the fixed circular plate 21. A fixing ring 19 is fixedly installed at the middle of one end of each support rod 18. A rigid conductive tube 16 is fixedly installed at the middle of the fixing ring 19. A flexible conductive tube 17 is connected to the upper end of the rigid conductive tube 16 via a flange. A rotating ring 161 is fixedly installed on the outer side of the lower middle of the rigid conductive tube 16. A limiting groove 20 is opened above the outer side of the middle of the rotating circular plate 23. The rotating ring 161 is rotatably engaged with the middle of the limiting groove 20. A tapered conduit 34 is fixedly connected to the middle of the lower end of the fixed circular plate 21. Multiple partitions 35 are evenly fixedly installed in the middle of the tapered conduit 34. Multiple diverter pipes 36 are formed between the multiple partitions 35 and the tapered conduit 34. The upper diameter of the tapered conduit 34 is larger than the lower diameter.

[0026] In this embodiment, the outer side of the fixed circular plate 21 is fixedly connected to the fixed ring 19 by multiple sets of support rods 18, forming uniform support for the rigid conductive pipe 16, ensuring that the rigid conductive pipe 16 is installed stably and is not easily displaced, avoiding long-term feeding vibration that could cause the pipeline to loosen and leak. The rigid conductive pipe 16 and the flexible conductive pipe 17 are connected by flanges, which are tightly sealed to prevent leakage and waste of liquid wetting agent. At the same time, the flange connection facilitates disassembly, maintenance, and replacement of the pipeline. The swivel ring 161 at the lower end of the rigid conductive pipe 16 is rotatably engaged in the limiting groove 20 of the rotating circular plate 23, which not only achieves precise positioning of the rotating circular plate 23 with the fixed circular plate 21 and the rigid conductive pipe 16, but also ensures that the rotating circular plate 23 can be flexibly rotated and adjusted without jamming or displacement. This effectively constrains the rotation trajectory, preventing guide groove misalignment and adjustment plate 26 jamming during adjustment, improving the operational stability and service life of the adjustment mechanism 2. The flexible conductive pipe 17 is connected to the external wetting agent pipeline. The flexible conduit 17 is telescopic and can be raised and lowered in conjunction with the motor 14. The tapered conduit 34 adopts a tapered structure with a larger diameter at the top and a smaller diameter at the bottom, which can naturally slow down the flow rate of the wetting agent and reduce the impact of discharge. Multiple baffles 35 inside the pipe form multiple diversion pipes 36, which cut the single stream of wetting agent into multiple fine streams to achieve uniform flow. This avoids the agglomeration and accumulation of high-viscosity wetting agent and prevents the excessive flow rate from impacting the liquid surface and generating a large amount of foam. It greatly improves the mixing uniformity of the wetting agent and the base water agent and ensures the stable performance of the finished fire extinguishing agent. The upper diameter of the tapered conduit 34 matches the through hole 25 of the fixed circular plate 21 and the rotating circular plate 23, achieving seamless connection with the adjustment mechanism 2 and smooth discharge without stagnation. The overall structure works in coordination with the adjustment mechanism 2 and the lifting structure. It is suitable for submerged feeding under the liquid surface and can also accurately control the amount through the adjustment mechanism 2. It takes into account practicality and adaptability and is suitable for different specifications of mixing tanks and production conditions.

[0027] Working principle: like Figure 1-8 As shown, the entire device is fixedly installed to external production equipment such as a mixing tank frame or a horizontal conveyor frame via a connecting block 11 at one end of the U-shaped frame 1. The flexible connecting pipe 17 at the upper end of the rigid connecting pipe 16 is connected to the external wetting agent supply pipeline, providing a stable material source and installation foundation for the entire feeding system. In the initial state, the motor 14 drives the lead screw 13 and the guide rod 12 to rotate synchronously, causing the connecting plate 15 to move upward along the U-shaped frame 1, raising the adjusting mechanism 2 and the lower tapered guide pipe 34 to the maintenance height, avoiding interference with the liquid level in the mixing tank. At the same time, the flexible connecting pipe 17 is in a naturally extended state, adapting to the initial installation position.

[0028] Once the water-based extinguishing agent base is injected into the mixing tank and reaches the preset liquid level, the motor 14 rotates forward, driving the lead screw 13 and guide rod 12 in opposite directions, causing the connecting plate 15 to move smoothly downward along the U-shaped frame 1. During this process, the flexible conduit 17 stretches and deforms synchronously with the downward movement of the connecting plate 15, ensuring that the connection and sealing between the rigid conduit 16 and the flexible conduit 17 are not affected. When the conical guide tube 34 descends to a predetermined depth below the liquid surface, the motor 14 stops rotating, completing the positioning for silent submersion and laying the foundation for subsequent bubble-free dispensing. The wetting agent flows from the external supply pipeline through the flexible conduit 17 into the rigid conduit 16, and then enters the central through-hole 25 area of ​​the flow regulating mechanism 2. At this time, the cylinder 33 starts, pushing the U-shaped plate 32 and the adjusting rod 31 to rotate, causing the rotating circular plate 23 to rotate relative to the fixed circular plate 21. The arc-shaped guide groove 24 on the rotating circular plate 23 and the straight guide groove 22 on the fixed circular plate 21 generate relative displacement. Through the linkage guidance and constraint of the top guide rod 27 and the bottom guide rod 28, multiple sets of adjusting plates 26 are driven to synchronously retract inward or open outward along the radial direction. Through the stroke control of the cylinder 33, the effective flow cross-sectional area of ​​the central through hole 25 can be precisely changed, realizing multi-level flow regulation from fully closed, stepless throttling to fully open. When the adjusting plates 26 are fully closed, the through hole 25 can be closed to cut off the material; when the adjusting plates 26 are evenly opened, the feed flow rate and velocity of the liquid wetting agent can be precisely controlled according to the fire extinguishing agent formula concentration and production capacity requirements.

[0029] After flow regulation, the wetting agent flows into the conical conduit 34, which is connected to the lower end of the fixed circular plate 21. The conical conduit 34 adopts a narrowing structure with a larger upper diameter and a smaller lower diameter, which naturally slows down the flow velocity of the wetting agent and reduces the impact of discharge. At the same time, multiple sets of baffles 35 inside the conical conduit 34 divide the internal channel into multiple diversion pipes 36, cutting the single stream of high-viscosity wetting agent into multiple uniform fine streams, achieving uniform dispersion and diversion. This process can effectively prevent the wetting agent from generating foam due to impacting the liquid surface due to excessive flow velocity, and also prevent the high-viscosity additives from agglomerating and accumulating due to excessively high local concentrations. The wetting agent flows out from the lower end of the conical conduit 34 in a fine and steady flow manner and enters the base water agent in the mixing tank. Under the action of the stirring mechanism, it quickly dissolves and disperses, greatly improving the mixing uniformity and ensuring the fire extinguishing performance and batch stability of the finished fire extinguishing agent.

[0030] Throughout the feeding process, the rotating ring 161 at the lower end of the rigid guide tube 16 is always engaged within the limiting groove 20 of the rotating disc 23. This provides precise rotational positioning for the rotating disc 23 and limits its radial offset, preventing guide groove misalignment and adjusting plate 26 jamming during adjustment, thus improving the operational stability and durability of the adjusting mechanism 2. Multiple sets of support rods 18 and fixing rings 19 provide uniform support for the rigid guide tube 16, offsetting vibrations during feeding and preventing pipeline loosening and leakage. The telescopic characteristics of the flexible guide tube 17 perfectly match the vertical displacement of the feed pipe, ensuring the continuity and sealing of material delivery. When the production of one extinguishing agent is completed or feeding needs to be paused, the cylinder 33 drives the adjusting rod 31 to reverse, causing multiple sets of adjusting plates 26 to assemble and seal the through hole 25, cutting off the delivery of the wetting agent. Then the motor 14 reverses, driving the connecting plate 15 to lift the regulating mechanism 2 and the conical guide tube 34 upwards, away from the liquid surface of the mixing tank. The staff can then clean and repair the device to prepare for the next production operation.

[0031] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wetting agent addition device for the production of water-based fire extinguishing agents, comprising a U-shaped frame (1), wherein a connecting plate (15) is slidably engaged at the middle of one end of the U-shaped frame (1), and an adjustment mechanism (2) is fixedly installed at one end of the connecting plate (15), characterized in that: The adjustment mechanism (2) includes a fixed circular plate (21), a rotating circular plate (23) is rotatably mounted above the center of the fixed circular plate (21), a plurality of straight guide grooves (22) are evenly opened around the outer periphery of the center of the fixed circular plate (21), and arc-shaped guide grooves (24) are opened around the outer periphery of the center of the rotating circular plate (23). A plurality of adjustment plates (26) are slidably engaged at the center of the rotating circular plate (23) and the fixed circular plate (21), and a top guide rod (27) is fixedly installed at the upper end of each of the adjustment plates (26). Each of the adjusting plates (26) has a bottom guide rod (28) fixedly installed at its lower end. An adjusting notch (30) is provided on one side of the middle of the fixed circular plate (21). An adjusting rod (31) is fixedly installed on one side of the rotating circular plate (23). A U-shaped plate (32) is fixedly installed at one end of the adjusting rod (31). The adjusting rod (31) is slidably engaged in the middle of the adjusting notch (30). A cylinder (33) is fixedly installed on one side of the connecting plate (15). The output end of the cylinder (33) is hinged to the U-shaped plate (32).

2. The wetting agent addition device for the production of water-based fire extinguishing agents according to claim 1, characterized in that: A connecting block (11) is fixedly installed in the middle of the other end of the U-shaped frame (1), a screw rod (13) is fixedly installed on one side of the middle of one end of the U-shaped frame (1), and a guide rod (12) is rotatably installed on the other side of the middle of one end of the U-shaped frame (1).

3. The wetting agent addition device for the production of water-based fire extinguishing agents according to claim 2, characterized in that: A motor (14) is fixedly installed on the other side of the upper middle part of the frame (1), and the output end of the motor (14) is fixedly connected to the guide rod (12).

4. The wetting agent addition device for the production of water-based fire extinguishing agents according to claim 2, characterized in that: The lead screw (13) is slidably engaged with one side of the middle part of the connecting block (11), and the guide rod (12) is threadedly connected to the other side of the middle part of the guide rod (12).

5. The wetting agent addition device for the production of water-based fire extinguishing agents according to claim 1, characterized in that: Support rods (18) are fixedly installed around the outer perimeter of the fixed circular plate (21), and a fixing ring (19) is fixedly installed at the middle of one end of each of the support rods (18).

6. The wetting agent addition device for the production of water-based fire extinguishing agents according to claim 5, characterized in that: A rigid conductive tube (16) is fixedly installed in the middle of the fixed ring (19). A flexible conductive tube (17) is connected to the upper end of the rigid conductive tube (16) through a flange. A rotating ring (161) is fixedly installed on the outer side of the middle of the lower end of the rigid conductive tube (16).

7. The wetting agent addition device for the production of water-based fire extinguishing agents according to claim 6, characterized in that: A limiting groove (20) is provided above the outer side of the middle part of the rotating circular plate (23), and the rotating ring (161) is rotatably engaged in the middle part of the limiting groove (20).

8. The wetting agent addition device for the production of water-based fire extinguishing agents according to claim 7, characterized in that: A tapered conduit (34) is fixedly connected to the middle of the lower end of the fixed circular plate (21). Multiple partitions (35) are uniformly fixedly installed in the middle of the tapered conduit (34). Multiple diverter pipes (36) are formed between the multiple partitions (35) and the tapered conduit (34). The upper diameter of the tapered conduit (34) is larger than the lower diameter.

9. The wetting agent addition device for the production of water-based fire extinguishing agents according to claim 7, characterized in that: Both the fixed circular plate (21) and the rotating circular plate (23) have through holes (25) in the middle. The diameter of the upper end of the through hole (25) matches that of the tapered conduit (34) and the lower end of the rigid conduit (16).

10. The wetting agent addition device for the production of water-based fire extinguishing agents according to claim 1, characterized in that: Multiple top guide rods (27) are slidably engaged with corresponding arc-shaped guide grooves (24), multiple bottom guide rods (28) are slidably engaged with corresponding straight guide grooves (22), and multiple adjustment plates (26) can completely close the through hole (25) when fully spliced.

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