Automatic production system of foam extinguishing agent

Abstract

The invention provides an automatic production system of a foam extinguishing agent, and relates to the technical field of foam extinguishing agent production equipment.The automatic production system of the foam extinguishing agent comprises two conveying pipelines, a filtering pipeline, a filtering shell and a sealing door, and a filtering net automatic switching mechanism is arranged in the filtering shell. According to the utility model, the grooves and the replacement ports corresponding to the grooves are matched with the automatic filter screen switching mechanism, so that the automatic switching of the filter screens is realized, the production efficiency is greatly improved, and the downtime caused by manual replacement of the filter screens is reduced; the automatic filter screen switching mechanism is arranged in the filter shell, so that an operator is prevented from being in direct contact with harmful substances, the safety risk is reduced, and meanwhile, the equipment damage caused by misoperation is reduced; the grid nodes of the second distribution plate correspond to the circular channels on the first distribution plate, so that water flow is effectively scattered, the water flow is distributed more uniformly, and the filtering efficiency and the quality of a foam extinguishing agent are improved.

Description

Technical Field

[0001] The invention relates to the technical field of foam fire extinguishing agent production equipment, in particular to an automated production system for foam fire extinguishing agent. Background Art

[0002] In the production process of foam fire extinguishing agent, the preparation materials of foam fire extinguishing agent are transported through conveying pipelines to ensure the continuity and efficiency of the production process. In this transmission process, in order to ensure the quality and performance of foam fire extinguishing agent, the conveying pipeline must be equipped with an effective filtration system so that while the material is being transported, it can filter out possible impurities and solid particles in real time to prevent these substances from affecting the foaming ability and injection effect of the fire extinguishing agent. Therefore, the filtration link of the conveying pipeline has become an important technical means to ensure the production quality of foam fire extinguishing agent.

[0003] However, traditional filtration systems usually rely on manual replacement and maintenance of filters, which not only leads to low production efficiency, but also easily causes damage to the filter or untimely replacement due to improper operation, which in turn affects the stable operation of the production line and product quality; and there are safety risks in the process of manual replacement of filters. Operators may be exposed to harmful substances or cause equipment damage due to operational errors; in addition, the filter needs to be shut down when replacing, which not only causes production interruptions, but also increases maintenance costs. Summary of the invention

[0004] The purpose of the present invention is to provide an automated production system for foam fire extinguishing agents, which can solve the problem that traditional filtration systems usually rely on manual replacement and maintenance of filter screens, which not only leads to low production efficiency, but also easily causes damage to the filter screen or untimely replacement due to improper operation, thereby affecting the stable operation of the production line and product quality; and there are safety risks in the process of manual replacement of the filter screen, and the operator may be exposed to harmful substances or cause equipment damage due to operational errors; in addition, the filter screen needs to be shut down when replaced, which not only causes production interruption, but also increases the maintenance cost.

[0005] The present invention provides an automated production system for a foam fire extinguishing agent, comprising two delivery pipes, a filter pipe, a filter housing and a sealing door, wherein the filter pipe is fixedly arranged between the two delivery pipes and is of a rectangular structure, two grooves are arranged at the bottom of the filter pipe, and two replacement ports corresponding to the grooves are arranged at the top of the filter pipe, the filter housing is fixedly arranged at the outer top of the filter pipe, and the front side of the filter housing is movably connected with the sealing door, an automatic filter screen switching mechanism is arranged in the filter housing, the automatic filter screen switching mechanism comprises an actuator for driving a filter assembly to perform a switching operation and two filter assemblies used alternately, the actuator is arranged in the filter housing, the two filter assemblies are connected to the actuator, and the filter assembly can pass through the replacement port under the drive of the actuator to enter the groove at the bottom of the filter pipe.

[0006] Preferably, the actuator assembly includes a rotating shaft, a motor, two connecting rods and two movable blocking cover plates, the two ends of the rotating shaft are respectively rotatably connected to the left and right sides of the filter housing, and two protrusions are arranged on the rotating shaft, the two protrusions are both concave structures, and the two protrusions are staggered and arranged up and down, the motor is fixedly arranged on the left side outside the filter housing, and the driving end of the motor is fixedly connected to one end of the rotating shaft, one end of the two connecting rods are respectively movably connected to the two protrusions, the two movable blocking cover plates are movably connected to the other ends of the two connecting rods through pin shaft seats, the movable blocking cover plates are slidably connected to the front and rear sides of the filter housing, the two filter components are respectively arranged at the bottom of the two movable blocking cover plates, and the two filter components are reversely staggered one above and one below.

[0007] Preferably, the filter assembly includes a top sealing plate, a detachable supporting unit, a bottom sealing plate and a filter net, the top sealing plate is fixedly arranged at the bottom of the movable sealing cover plate, and the top sealing plate matches the replacement port at the top of the filter pipe, the detachable supporting unit is fixedly arranged at the bottom of the top sealing plate, the bottom sealing plate is fixedly arranged at the bottom of the supporting unit, and the bottom sealing plate corresponds to the groove at the bottom of the filter pipe and the replacement port at the top of the filter pipe respectively, and the filter net is arranged in the supporting unit.

[0008] Preferably, the support unit includes a support frame, a mounting plate, bolts and two groups of limit plates, the support frame is a concave structure, and a threaded hole is opened on one side of the notch of the support frame, a mounting hole corresponding to the threaded hole is opened on the mounting plate, and an accommodating port is provided on the mounting hole, the support frame and the mounting plate are connected by bolts, and the head of the bolt is located in the accommodating port, and the head of the bolt maintains the same horizontal plane with the surface of the mounting plate, the two groups of limit plates are respectively fixedly arranged at the top and bottom of the support frame, and the filter screen is movably arranged between the two groups of limit plates.

[0009] Preferably, the filter assembly further includes a diversion unit for diverting the medium, and the diversion unit is disposed in the support unit and is located at the front side of the filter screen.

[0010] Preferably, the diversion unit includes a first distribution plate and a second distribution plate, the first distribution plate is fixedly arranged in the support frame, and a plurality of circular channels are evenly distributed on the first distribution plate, the second distribution plate is fixedly arranged in the support frame, and the second distribution plate is located between the first distribution plate and the filter screen, and the second distribution plate is arranged in a cross grid to form a regular rectangular opening structure.

[0011] Preferably, the flow diversion unit further comprises an impeller shaft and impeller blades, the impeller shaft is rotatably connected to the first distribution plate, and the impeller blades are fixedly arranged on the impeller shaft.

[0012] Preferably, the width of the movable blocking cover plate is greater than the width of the top blocking plate.

[0013] Preferably, each grid node of the second distribution plate corresponds to a circular channel on the first distribution plate, which can effectively break up the water flow and make it more uniform.

[0014] Preferably, the rotating shaft and the filter housing as well as the impeller shaft and the first distribution plate are connected via sealed bearings.

[0015] The present invention provides an automated production system for a foam fire extinguishing agent through improvement. Compared with the prior art, the present invention has the following improvements and advantages: the present invention realizes automatic switching of the filter screen by arranging a rectangular structure and a groove on the filter pipe, as well as a replacement port corresponding to the groove, in cooperation with an automatic filter screen switching mechanism, thereby greatly improving production efficiency, reducing downtime caused by manual replacement of the filter screen, and ensuring continuous operation of the production line; by arranging an automatic filter screen switching mechanism in the filter housing, direct contact of operators with harmful substances is avoided, safety risks are reduced, and equipment damage caused by operational errors is reduced; the grid nodes of the second distribution plate correspond to the circular channels on the first distribution plate, effectively breaking up the water flow and making it more evenly distributed, thereby improving the filtering efficiency and the quality of the foam fire extinguishing agent; the configuration of the impeller shaft and the impeller blades can self-rotate by utilizing the impact force generated by the material flow, and the self-rotation characteristic further enhances the dispersion of the material in the filter pipe, ensures that the material passes through the filter screen evenly, reduces local overload and wear, and prolongs the service life of the filter screen. This uniform material distribution not only improves filtration efficiency, but also reduces the frequency of filter replacement and maintenance costs. The filter can be quickly replaced through the sealed door, detachable support unit and limit plate, without the need for staff to operate inside the pipeline, ensuring that the entire system can remain closed when replacing the filter, preventing the leakage of harmful substances, while also protecting the safety of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall axonometric structure of an automated production system for a foam fire extinguishing agent;

[0018] Figure 2 It is an axonometric structural schematic diagram of a filter pipe and a filter housing of an automated production system for a foam fire extinguishing agent;

[0019] Figure 3 It is an axonometric structural schematic diagram of a filter pipeline of an automated production system for a foam fire extinguishing agent;

[0020] Figure 4 It is an axonometric structural diagram of an automatic filter switching mechanism of an automated production system for a foam fire extinguishing agent;

[0021] Figure 5It is a schematic diagram of the axonometric structure of a rotating shaft of an automated production system for a foam fire extinguishing agent;

[0022] Figure 6 It is a schematic diagram of the axonometric structure of a connecting rod and a supporting unit of an automated production system for a foam fire extinguishing agent in a disassembled state;

[0023] Figure 7 It is an axonometric structural diagram of a flow-dividing unit of an automated production system for a foam fire extinguishing agent;

[0024] Figure 8 The present invention is a schematic diagram of the axonometric structure of a limit plate of an automated production system for foam fire extinguishing agent.

[0025] Description of reference numerals:

[0026] 1. Conveying pipeline; 2. Filter pipeline; 3. Filter housing; 4. Sealing door; 5. Actuator; 51. Rotating shaft; 52. Protrusion; 53. Motor; 54. Connecting rod; 55. Movable plugging cover; 6. Filter assembly; 61. Top plugging plate; 62. Support unit; 62-1. Support frame; 62-2. Mounting plate; 62-3. Bolt; 62-4. Limiting plate; 63. Bottom plugging plate; 64. Filter net; 65. Diverter unit; 65-1. First distribution plate; 65-2. Second distribution plate; 65-3. Impeller shaft; 65-4. Impeller blade; 7. Groove; 8. Replacement port. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. 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.

[0030] See also Figure 1-8 The present invention provides a technical solution: an automated production system for a foam fire extinguishing agent, comprising two conveying pipes 1, a filter pipe 2, a filter housing 3 and a sealing door 4. The two conveying pipes 1 are responsible for conveying a medium (such as a water mixture). The filter pipe 2 is fixedly arranged between the two conveying pipes 1, and the filter pipe 2 is a rectangular structure. The filter pipe 2 with a rectangular structure is more convenient to install and maintain. The filter pipe 2 ensures that impurities in the medium are effectively filtered during the conveying process to ensure product quality. Two grooves 7 are provided at the bottom of the filter pipe 2, and two replacement ports 8 corresponding to the grooves 7 are provided at the top of the filter pipe 2. The filter housing 3 is fixedly arranged on the outer top of the filter pipe 2, and the front side of the filter housing 3 is movably connected with a sealing door 4. The function of the filter housing 3 is to protect the internal filter automatic switching mechanism and provide a closed operating environment. The sealing door 4 is used to open the filter The housing 3 is provided with a filter automatic switching mechanism, which includes an actuator 5 for driving the filter assembly 6 to switch and two filter assemblies 6 used alternately. The actuator 5 is provided in the filter housing 3. The two filter assemblies 6 are connected to the actuator 5. The function of the actuator 5 is to drive the filter assembly 6 to switch to ensure the continuity and efficiency of the filtering process. The filter assembly 6 can pass through the replacement port 8 under the drive of the actuator 5 and enter the groove 7 at the bottom of the filter pipe 2. The replacement port 8 corresponds to the groove 7. They are the channels for the filter assembly 6 to enter and exit the filter pipe 2. The two filter assemblies 6 are used alternately. They are connected to the actuator 5 and can pass through the replacement port 8 under the drive of the actuator 5 and enter the groove 7 at the bottom of the filter pipe 2. The function of the filter assembly 6 is to actually filter the substance, remove the insoluble substances and impurities in the foam fire extinguishing agent, and ensure the purity and performance of the final product.

[0031] Specifically, the actuator 5 includes a rotating shaft 51, a motor 53, two connecting rods 54 and two movable blocking cover plates 55. The two ends of the rotating shaft 51 are rotatably connected to the left and right sides of the filter housing 3 respectively, and two protrusions 52 are arranged on the rotating shaft 51. The two protrusions 52 are both concave structures, and the two protrusions 52 are staggered and arranged up and down. These protrusions 52 are used to be movably connected with the connecting rod 54 to transmit rotational power. The motor 53 is fixedly arranged on the left side outside the filter housing 3, and the driving end of the motor 53 is fixedly connected to one end of the rotating shaft 51. The motor 53 provides power to drive the operation of the entire actuator 5 by rotating the rotating shaft 51. One end of the two connecting rods 54 is movably connected to the two protrusions 52 respectively, and the two movable blocking cover plates 55 are movably connected to the other ends of the two connecting rods 54 through the pin seats. The movable blocking cover plates 55 and The front and rear sides of the filter housing 3 are slidably connected. Since the movable sealing plate is slidably connected to the filter housing 3, the filter housing 3 only allows the movable sealing plate to move in a straight line. Therefore, the connecting rod 54 can transmit the rotational power generated by the motor 53 through the rotating shaft 51, and convert it into a linear motion of the movable sealing cover plate 55. The movable sealing cover plate 55 can be driven by the actuator 5 to move and block or open the replacement port 8 of the filter pipe 2, thereby realizing the switching of the filter component 6. The two filter components 6 are respectively arranged at the bottom of the two movable sealing cover plates 55, and the two filter components 6 are reversely offset one above and one below. During the filtering process, when a filter component 6 reaches its service life or needs to be replaced, the system will automatically switch to another filter component 6, and the first filter component 6 can be moved out of the working position for maintenance or replacement.

[0032] Specifically, the filter assembly 6 includes a top sealing plate 61, a detachable support unit 62, a bottom sealing plate 63 and a filter screen 64. The top sealing plate 61 is fixedly arranged at the bottom of the movable sealing cover plate 55, and the top sealing plate 61 matches the replacement port 8 at the top of the filter pipe 2 to ensure that the replacement port 8 can be sealed when the filter assembly 6 is installed to prevent material leakage during the filtering process. The detachable support unit 62 is fixedly arranged at the bottom of the top sealing plate 61. The detachable support unit 62 provides structural support. At the same time, due to its detachable characteristics, it is convenient to quickly replace and maintain the filter screen 64. The bottom sealing plate 63 is fixedly arranged at the bottom of the support unit 62, and the bottom sealing plate 63 corresponds to the groove 7 at the bottom of the filter pipe 2 and the replacement port 8 at the top of the filter pipe 2 respectively. The bottom sealing plate 63 is used to seal the groove 7 at the bottom of the filter pipe 2 to ensure the effectiveness of the filtering process. The filter screen 64 is arranged in the support unit 62. The filter screen 64 is used to intercept solid impurities and insoluble substances in the material to ensure the purity of the final product.

[0033] Specifically, the support unit 62 includes a support frame 62-1, a mounting plate 62-2, a bolt 62-3 and two sets of limit plates 62-4. The support frame 62-1 is a concave structure, and a threaded hole is provided on one side of the notch of the support frame 62-1. The support frame 62-1 serves as a frame for the filter screen 64, provides structural support for the filter screen 64, and maintains its stable position. The mounting plate 62-2 is provided with mounting holes corresponding to the threaded holes, and a receiving opening is provided on the mounting hole. The support frame 62-1 and the mounting plate 62-2 are connected by bolts 62-3, and the heads of the bolts 62-3 are located in the receiving openings. The heads of the bolts 62-3 are kept at the same horizontal plane as the surface of the mounting plate 62-2. The function of the mounting plate 62-2 is to be in contact with the filter screen 64. The support frame 62-1 is combined and fixed by bolts 62-3 to form a solid support entity. At the same time, the design of the accommodating port ensures that the head of the bolt 62-3 does not protrude, keeping the surface flat. The support entity composed of the support frame 62-1 and the mounting plate 62-2 is completely in contact with the inner wall of the filter pipe 2, ensuring that the materials in the filter pipe 2 are completely filtered. Two sets of limit plates 62-4 are respectively fixed at the top and bottom of the support frame 62-1, and the filter screen 64 is movably arranged between the two sets of limit plates 62-4. The limit plates 62-4 limit the movement of the filter screen 64 in the support frame 62-1, ensuring that the filter screen 64 maintains the correct position during the filtration process, preventing the filtration effect from being affected by displacement, and facilitating the replacement of the filter screen 64.

[0034] Specifically, the filter assembly 6 further includes a flow diversion unit 65 for diverting the medium, which is disposed in the support unit 62 and is located in front of the filter screen 64. The filter assembly 6 can evenly divert the medium (such as a water mixture) entering the filter assembly 6, ensuring that the medium is evenly distributed on the filter screen 64, thereby improving the filtration efficiency and filtration quality. At the same time, the flow diversion unit 65 helps to reduce the local pressure on the filter screen 64, so that the medium does not cause an excessively fast flow rate or eddy current when passing through the filter screen 64, which helps to prevent the filter screen 64 from being damaged by the impact of the medium and prolong the service life of the filter screen 64.

[0035] Specifically, the flow diversion unit 65 includes a first distribution plate 65-1 and a second distribution plate 65-2. The first distribution plate 65-1 is fixedly arranged in the support frame 62-1, and a plurality of circular channels are evenly distributed on the first distribution plate 65-1. The main function of the first distribution plate 65-1 is to receive the medium from the conveying pipeline 1 and evenly distribute the medium to the second distribution plate 65-2 through the circular channels. The design of these circular channels helps to reduce the turbulence and pressure loss of the medium when passing through, and ensures that the medium enters the flow diversion unit 65 at a uniform flow rate. The second distribution plate 65-2 is fixedly arranged in the support frame 62-1, and the second distribution plate 65-2 is located between the first distribution plate 65-1 and the filter screen 64. The second distribution plate 65-2 is arranged in a cross grid to form a regular rectangular opening structure. When the medium passes through the second distribution plate 65-2, it can be further evenly distributed, reducing the impact of local high-speed fluid and avoiding damage to the filter screen 64. The rectangular opening structure helps to guide the medium to contact the filter screen 64 in a more stable flow state, thereby improving the filtration efficiency and extending the service life of the filter screen 64. The diversion unit 65 ensures the uniform distribution of the medium before filtration, provides optimized fluid dynamic conditions for the filtration process, and enhances the overall performance of the filter assembly 6.

[0036] Specifically, the diversion unit 65 also includes an impeller shaft 65-3 and an impeller blade 65-4. The impeller shaft 65-3 is rotatably connected to the first distribution plate 65-1, and the impeller blade 65-4 is fixedly arranged on the impeller shaft 65-3. The impeller shaft 65-3 and the impeller blade 65-4 rely on the driving force of the medium flowing inside the conveying pipeline 1 to achieve rotation. The impeller shaft 65-3 serves as the rotation center of the impeller blade 65-4, and transmits the rotational power to the impeller blade 65-4, thereby driving the impeller blade 65-4 to rotate. The impeller shaft 65-3 and the impeller blades 65-4 allow the medium to be further stirred and dispersed by the impeller blades 65-4 when passing through the diversion unit 65. The rotation of the impeller blades 65-4 can break the flow layers and vortices that may be formed in the medium, ensuring that the medium is more uniform when passing through the circular channel on the first distribution plate 65-1, thereby improving the filtration efficiency and the uniformity of the distribution of the medium. The combined use of the impeller shaft 65-3 and the impeller blades 65-4 enables the diversion unit 65 to not only achieve preliminary distribution of the medium through the static distribution plate, but also further optimize the flow state of the medium through dynamic impeller rotation.

[0037] Specifically, the width of the movable blocking cover plate 55 is greater than the width of the top blocking plate 61, which can further enhance the sealing effect.

[0038] Specifically, each grid node of the second distribution plate 65-2 corresponds to a circular channel on the first distribution plate 65-1, and the arrangement of the grid nodes corresponding to the circular channels can effectively break up the media, making them more evenly distributed on the filter screen 64, thereby maximizing the utilization efficiency of the filter screen 64. The even distribution of the media reduces the uneven flow and potential clogging points on the filter screen 64, thereby improving the overall filtering speed and efficiency.

[0039] Specifically, the rotating shaft 51 and the filter housing 3 as well as the impeller shaft 65-3 and the first distribution plate 65-1 are connected via sealed bearings. The main function of the sealed bearings is to support the rotating shaft 51 and provide sealing to prevent medium leakage. It can isolate the internal medium from the external environment while maintaining smooth movement of the rotating parts, thereby ensuring the safe operation of the system.

[0040] Working principle:

[0041] In the normal filtering state, one filter assembly 6 is kept in the filter pipe 2 for medium filtering, while the other filter assembly 6 is located in the filter housing 3 as a backup. At this time, the working filter assembly 6 receives the medium from the conveying pipe 1, removes impurities through its internal filter screen 64, and ensures that only pure medium passes through. At the same time, the backup filter assembly 6 is on standby, ready to replace the working filter assembly 6 at any time. This configuration ensures the continuity of the filtering process. When the current filter assembly 6 reaches its service life or needs maintenance, the system can quickly switch to the backup filter assembly 6 without interrupting the entire production process.

[0042] During the process of replacing the filter assembly 6, the motor 53 starts to drive the rotating shaft 51 to rotate, and the two protrusions 52 on the rotating shaft 51 rotate in the opposite direction, and the rotational power is converted into linear motion through the connecting rod 54. This linear motion is transmitted to the movable blocking cover plate 55 through the pin shaft seat, but due to the limiting effect of the filter housing 3 on the movable blocking cover plate 55, the movement of the movable blocking cover plate 55 is limited to sliding up and down in the vertical direction. As the rotating shaft 51 rotates, one of the movable blocking cover plates 55 begins to rise within the limited track of the filter housing 3, and at the same time drives the filter assembly 6 located in the filter pipe 2 to move upward until its bottom blocking plate 63 reaches the replacement port 8 and blocks it to prevent leakage of the medium. At the same time, the spare filter assembly 6 originally located in the filter housing 3 begins to descend synchronously under the pull of the connecting rod 54, and its bottom blocking plate 63 leaves the replacement port 8, and the top blocking plate 61 gradually enters the replacement port 8. This movement in opposite directions of the two filter components 6 ensures the continuous operation of the filter system during the replacement process. When the rising filter component 6 completely enters the filter housing 3 and becomes a standby, the descending filter component 6 completely enters the filter pipe 2 to take over the filtering work. The bottom sealing plate 63 falls accurately into the groove 7, and the top sealing plate 61 is sealed at the replacement port 8, completing the replacement of the filter component 6.

[0043] When replacing the used filter 64, it is first necessary to open the sealing door 4 located on the filter assembly 6, and then the operator removes the bolts 62-3 that fix the mounting plate 62-2 one by one. After the bolts 62-3 are removed, the mounting plate 62-2 can be easily removed, and the entire front end of the filter 64 is exposed. Since the filter 64 is located in the limit plate 62-4, the operator can slide the old filter 64 smoothly along the track of the limit plate 62-4. After the old filter 64 is completely removed, the operator inserts the new filter 64 into the limit plate 62-4 in the same direction to ensure that it is correctly in place. Subsequently, the previously removed mounting plate 62-2 is reinstalled and fixed back to its original position with bolts 62-3 to ensure the stability and sealing of the filter 64. Finally, the sealing door 4 is closed to complete the replacement process of the filter 64. The entire process is simple in design and easy to operate, which not only reduces maintenance time, but also ensures the efficient operation of the filtration system and the safety of the operator.

[0044] During the filtering process, the medium first enters the diversion unit 65, and the impeller shaft 65-3 and the impeller blades 65-4 begin to rotate under the impetus of the flow of the medium. This rotational motion not only provides a stirring effect, helps disperse the medium, and improves the uniformity of the distribution of the medium, but also plays a buffering role, avoiding the medium from directly impacting the filter screen 64, reducing the damage or wear that may occur to the filter screen 64 due to the impact. As the medium flows, it passes through the circular channels on the first distribution plate 65-1. The design of these channels ensures that the medium can flow evenly to the second distribution plate 65-2. The cross-grid layout of the second distribution plate 65-2, each grid node corresponds to the circular channel on the first distribution plate 65-1. This layout not only effectively breaks up the medium, but also further evenly distributes it on the filter screen 64, while avoiding the direct impact of the medium on the filter screen 64. This layer-by-layer redistribution process not only makes the medium reach a highly uniform state when it reaches the filter screen 64, thereby improving the utilization efficiency of the filter screen 64, but also protects the filter screen 64 and extends its service life. Through this uniform distribution, the uneven flow and potential blockage points on the filter screen 64 are effectively reduced, while damage to the filter screen 64 is avoided, thereby improving the overall filtration speed and efficiency, and ensuring a smooth filtration process and stable product quality.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automated production system for a foam fire extinguishing agent, characterized in that: The invention comprises two conveying pipes (1), a filter pipe (2), a filter housing (3) and a sealing door (4); the filter pipe (2) is fixedly arranged between the two conveying pipes (1), and the filter pipe (2) is of a rectangular structure; two grooves (7) are provided at the bottom of the filter pipe (2); two replacement ports (8) corresponding to the grooves (7) are provided at the top of the filter pipe (2); the filter housing (3) is fixedly arranged at the top of the filter pipe (2); the front side of the filter housing (3) is movably connected to the sealing door (4); an automatic filter screen switching mechanism is arranged in the filter housing (3); the automatic filter screen switching mechanism comprises an actuator (5) for driving a filter assembly (6) to perform a switching operation and two filter assemblies (6) used alternately; the actuator (5) is arranged in the filter housing (3); the two filter assemblies (6) are connected to the actuator (5); the filter assembly (6) can pass through the replacement port (8) under the drive of the actuator (5) and enter the groove (7) at the bottom of the filter pipe (2).

2. The automated production system of a foam fire extinguishing agent according to claim 1, characterized in that: The actuator assembly (5) comprises a rotating shaft (51), a motor (53), two connecting rods (54) and two movable blocking cover plates (55); the two ends of the rotating shaft (51) are respectively rotatably connected to the left and right sides of the filter housing (3); and the rotating shaft (51) is provided with two protrusions (52); both of the two protrusions (52) are concave structures, and the two protrusions (52) are staggered and arranged up and down; the motor (53) is fixedly arranged on the left side outside the filter housing (3), and the driving end of the motor (53) is The two connecting rods (54) are fixedly connected to one end of the rotating shaft (51), one end of each of the two connecting rods (54) is movably connected to the two protruding portions (52), the two movable blocking cover plates (55) are movably connected to the other ends of the two connecting rods (54) via a pin shaft seat, the movable blocking cover plates (55) are slidably connected to the front and rear sides of the filter housing (3), the two filter assemblies (6) are respectively arranged at the bottom of the two movable blocking cover plates (55), and the two filter assemblies (6) are arranged in a reverse offset arrangement, one above and one below.

3. The automated production system of a foam fire extinguishing agent according to claim 2, characterized in that: The filter assembly (6) comprises a top blocking plate (61), a detachable support unit (62), a bottom blocking plate (63) and a filter screen (64); the top blocking plate (61) is fixedly arranged at the bottom of the movable blocking cover plate (55), and the top blocking plate (61) matches the replacement port (8) at the top of the filter pipe (2); the detachable support unit (62) is fixedly arranged at the bottom of the top blocking plate (61); the bottom blocking plate (63) is fixedly arranged at the bottom of the support unit (62), and the bottom blocking plate (63) respectively corresponds to the groove (7) at the bottom of the filter pipe (2) and the replacement port (8) at the top of the filter pipe (2); and the filter screen (64) is arranged in the support unit (62).

4. The automated production system of a foam fire extinguishing agent according to claim 3, characterized in that: The support unit (62) comprises a support frame (62-1), a mounting plate (62-2), a bolt (62-3) and two groups of limit plates (62-4); the support frame (62-1) is a concave structure, and a threaded hole is provided on one side of the notch of the support frame (62-1); a mounting hole corresponding to the threaded hole is provided on the mounting plate (62-2); a receiving opening is provided on the mounting hole; the support frame (62-1) and the mounting plate (62-2) are connected by bolts (62-3), and the head of the bolt (62-3) is located in the receiving opening; the head of the bolt (62-3) and the surface of the mounting plate (62-2) maintain the same horizontal plane; the two groups of limit plates (62-4) are respectively fixedly arranged at the top and bottom of the support frame (62-1); and the filter screen (64) is movably arranged between the two groups of limit plates (62-4).

5. The automated production system of a foam fire extinguishing agent according to claim 4, characterized in that: The filter assembly (6) further comprises a flow diversion unit (65) for diverting the medium; the flow diversion unit (65) is arranged in the support unit (62), and the flow diversion unit (65) is located at the front side of the filter screen (64).

6. The automated production system of foam fire extinguishing agent according to claim 5, characterized in that: The flow distribution unit (65) comprises a first distribution plate (65-1) and a second distribution plate (65-2); the first distribution plate (65-1) is fixedly arranged in a support frame (62-1), and a plurality of circular channels are evenly distributed on the first distribution plate (65-1); the second distribution plate (65-2) is fixedly arranged in the support frame (62-1), and the second distribution plate (65-2) is located between the first distribution plate (65-1) and the filter screen (64); the second distribution plate (65-2) is arranged in a cross grid manner to form a regular rectangular opening structure.

7. The automated production system of foam fire extinguishing agent according to claim 6, characterized in that: The flow distribution unit (65) further comprises an impeller shaft (65-3) and an impeller blade (65-4); the impeller shaft (65-3) is rotatably connected to the first distribution plate (65-1); and the impeller blade (65-4) is fixedly arranged on the impeller shaft (65-3).

8. The automated production system of a foam fire extinguishing agent according to claim 7, characterized in that: The width of the movable blocking cover plate (55) is greater than the width of the top blocking plate (61).

9. The automated production system of foam fire extinguishing agent according to claim 8, characterized in that: Each grid node of the second distribution plate (65-2) corresponds to a circular channel on the first distribution plate (65-1), which can effectively break up the water flow and make it more uniform.

10. The automated production system of foam fire extinguishing agent according to claim 9, characterized in that: The rotating shaft (51) and the filter housing (3) as well as the impeller shaft (65-3) and the first distribution plate (65-1) are connected via sealed bearings.

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