A ventilation and purification device for an infusion cart

Abstract

The utility model relates to a ventilation purification technical field, and disclose a kind of infusion workshop ventilation purification device, including support plate, support plate is placed vertically, several horizontal through holes are opened in support plate, L-shaped exhaust pipe is installed in support plate one side corresponding through hole, L-shaped exhaust pipe one end is fixedly connected with support plate, and the same side installation has first filter liquid barrel with L-shaped exhaust pipe, L-shaped exhaust pipe other end is inserted into the bottom inside first filter liquid barrel, U-shaped exhaust pipe is installed in first filter liquid barrel top, U-shaped exhaust pipe one end is fixedly connected with the first sealing cover of sealing first filter liquid barrel, second filter liquid barrel is installed in parallel to first filter liquid barrel, U-shaped exhaust pipe other end is inserted into the bottom inside second filter liquid barrel, second filter liquid barrel top is equipped with second sealing cover.The utility model solves the problem of limited air purification capacity of conventional device, and low purification efficiency.

Description

Technical Field

[0001] This utility model relates to the field of ventilation and purification technology, specifically a ventilation and purification device for an infusion workshop. Background Technology

[0002] Ventilation and purification devices are mainly used for ventilation and to purify and filter exhaust gases to meet emission standards. The processing and production of products in factories usually generates some polluting gases or dust. If these polluting gases or dust are released into the atmosphere without purification, they will cause serious pollution to the environment.

[0003] However, traditional ventilation systems in infusion workshops generally use single-stage filtration structures, such as relying solely on physical filters to intercept particulate matter or single-liquid tanks to aerate and treat gases. Physical filtration devices cannot effectively remove acidic gases and organic pollutants, while single-stage liquid bath purification structures have limited ability to degrade complex pollutants, especially small molecule harmful substances. Equipment maintenance requires shutdown to replace the filter media, which significantly affects the continuous production rhythm of the workshop and seriously affects purification efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a ventilation and purification device for infusion workshops to solve the problems of limited air purification capacity and low purification efficiency.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a ventilation and purification device for an infusion workshop, comprising a support plate placed vertically, with several horizontal through holes. An L-shaped exhaust pipe is installed on one side of the support plate corresponding to the through holes, with one end of the L-shaped exhaust pipe fixedly connected to the support plate. A first filter liquid tank is installed on the same side as the L-shaped exhaust pipe, with the other end of the L-shaped exhaust pipe extending into the bottom of the first filter liquid tank. A U-shaped exhaust pipe is fixedly installed on the top of the first filter liquid tank, with one end of the U-shaped exhaust pipe fixedly connected to a first sealing cap sealing the first filter liquid tank. A second filter liquid tank is installed parallel to the first filter liquid tank, with the other end of the U-shaped exhaust pipe extending into the bottom of the second filter liquid tank. A second sealing cap is installed on the top of the second filter liquid tank.

[0006] Furthermore, a filter grille is installed parallel to the support plate, and first guide rail grooves are installed on both sides of the filter grille. The first guide rail grooves and the filter grille are fitted together. A support frame is installed parallel to the filter grille. An air intake fan is installed on the side of the support frame away from the filter grille, and a motor is installed on the side of the support frame close to the filter grille. The output shaft of the motor passes through the support frame and is fixedly connected to the air intake fan shaft. A protective grille is installed parallel to the support frame.

[0007] Furthermore, a rectangular exhaust pipe is installed on the top of the second sealing cover. The rectangular exhaust pipe is connected to the second filtrate tank. A filter shell is installed at the other end of the rectangular exhaust pipe. Guide blocks are installed on both sides of the inner wall of the filter shell. A filter box is installed inside the filter shell. Vent holes are opened on the upper and lower sides of the filter box. Second guide rail grooves are opened on both sides of the filter box. The second guide rail grooves are fitted and connected to the guide blocks. A pull ring is installed on one side of the filter shell. An opening is made on the top of the filter shell and an air outlet pipe is installed.

[0008] Furthermore, the first and second filter tanks have openings on one side and are equipped with drain pipes, and the first and second filter tanks have openings on the other side and are equipped with infusion pipes, the height of which is higher than that of the drain pipes.

[0009] Furthermore, a first outer shell is sleeved between the support plate and the protective grille, and a second outer shell is installed between the second filter liquid tank and the support plate. The first filter liquid tank and the second filter liquid tank are installed on the inner wall of the second outer shell.

[0010] Furthermore, four sets of mounting plates are installed around the outer surface of the first housing, and mounting holes are provided in the mounting plates.

[0011] This utility model has the following beneficial effects: (1) When the air is introduced, the polluted air enters the device through the through hole of the support plate and is then introduced into the L-shaped exhaust pipe. The gas flows downward along the L-shaped exhaust pipe and flows into the bottom of the first filter liquid tank from its end outlet. The gas forms bubbles in the liquid and floats up. The pollutants are adsorbed by the liquid. The purified gas gathers in the sealed space below the first sealing cover. The gathered gas enters the pipeline through the inlet of the U-shaped exhaust pipe and is transported downward along the U-shaped path to the bottom of the second filter liquid tank. The gas penetrates the liquid layer again in the form of bubbles. After secondary purification, the gas rises and accumulates below the second sealing cover. The first filter liquid tank is filled with sodium hydroxide solution and the second filter liquid tank is filled with sodium hypochlorite solution. Sodium hydroxide solution is used to neutralize acidic gases, such as hydrochloric acid and sulfur dioxide, and dissolve organic acid vapors. Sodium hypochlorite solution is used to oxidize and decompose organic matter, such as formaldehyde and volatile organic compounds, and to sterilize. The first-stage filtration liquid is used to neutralize acidic pollutants, and the second-stage oxidizing liquid decomposes residual organic matter, forming complementary purification. Even if the pollutants are not completely removed in the first stage, they can be oxidized and degraded in the second stage.

[0012] (2) In this utility model, the gas purified by the second filter liquid tank is stored in the space below the second sealing cover and is vertically introduced into the filter shell through the rectangular exhaust pipe. The gas flows into the filter box from below, penetrates the filter medium filled inside such as activated carbon, and the purified gas is discharged clean air through the upper vent hole. Pulling the pull ring causes the filter shell to move to the side, and the filter box, which is fitted into the guide block and the second guide rail groove, slides out along the track to realize the rapid replacement or regeneration of the filter medium. The pull ring and the guide rail system realize non-contact replacement, eliminating the risk of personnel contacting the contaminated filter element. The filter box, as the fourth stage of filtration, deeply captures the trace aerosols and odor molecules remaining after liquid bath purification.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the intake fan structure of this utility model; Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model; Figure 4 This is a schematic diagram of the two-stage filtration structure of this utility model; Figure 5 This is a schematic diagram of the end-filter structure of this utility model.

[0016] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Support plate; 101. Through hole; 2. L-shaped exhaust pipe; 3. First filtrate tank; 301. First sealing cover; 4. U-shaped exhaust pipe; 5. Second filtrate tank; 501. Second sealing cover; 6. Filter grid; 601. First guide rail groove; 7. Support frame; 8. Air intake fan; 9. Motor; 10. Protective grid; 11. Rectangular exhaust pipe; 12. Filter shell; 1201. Guide block; 13. Filter box; 1301. Vent hole; 1302. Second guide rail groove; 14. Pull ring; 15. Air outlet pipe; 16. Drain pipe; 17. Infusion pipe; 18. First outer shell; 1801. Mounting plate; 1802. Mounting hole; 19. Second outer shell. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 - Figure 5 As shown, this utility model is a ventilation and purification device for an infusion workshop, including a support plate 1, which is placed vertically. Several horizontal through holes 101 are opened in the support plate 1. An L-shaped exhaust pipe 2 is installed on one side of the support plate 1 corresponding to the through holes 101. One end of the L-shaped exhaust pipe 2 is fixedly connected to the support plate 1. A first filter liquid tank 3 is installed on the same side as the L-shaped exhaust pipe 2. The other end of the L-shaped exhaust pipe 2 extends into the bottom of the first filter liquid tank 3. A U-shaped exhaust pipe 4 is fixedly installed on the top of the first filter liquid tank 3. One end of the U-shaped exhaust pipe 4 is fixedly connected to the first sealing cover 301 that seals the first filter liquid tank 3. A second filter liquid tank 5 is installed parallel to the first filter liquid tank 3. The other end of the U-shaped exhaust pipe 4 extends into the bottom of the second filter liquid tank 5. A second sealing cover 501 is fixedly installed on the top of the second filter liquid tank 5.

[0019] During intake, polluted air enters the device through the through hole 101 of the support plate 1 and is then guided into the L-shaped exhaust pipe 2. The gas flows downward along the L-shaped exhaust pipe 2 and flows into the bottom of the first filter liquid tank 3 from its end outlet. The gas forms bubbles in the liquid and floats to the surface. The pollutants are adsorbed by the liquid, and the purified gas gathers in the sealed space below the first sealing cover 301. The gathered gas enters the pipeline through the inlet of the U-shaped exhaust pipe 4 and is transported downward along the U-shaped path to the bottom of the second filter liquid tank 5. The gas again penetrates the liquid layer in the form of bubbles, and the gas is purified a second time. The solution rises and accumulates below the second sealing cover 501. The first filter tank 3 is filled with sodium hydroxide solution, and the second filter tank 5 is filled with sodium hypochlorite solution. The sodium hydroxide solution is used to neutralize acidic gases, such as hydrochloric acid and sulfur dioxide, and to dissolve organic acid vapors. The sodium hypochlorite solution is used to oxidize and decompose organic matter, such as formaldehyde and volatile organic compounds, and to sterilize. The primary filter solution specifically neutralizes acidic pollutants, and the secondary oxidizing liquid decomposes residual organic matter, forming a complementary purification process. This allows pollutants that cannot be completely removed in the primary stage to be oxidized and degraded in the secondary stage.

[0020] A filter grille 6 is installed parallel to the support plate 1. First guide rail grooves 601 are installed on both sides of the filter grille 6. The first guide rail grooves 601 and the filter grille 6 are fitted together. A support frame 7 is installed parallel to the filter grille 6. An air intake fan 8 is installed on the side of the support frame 7 away from the filter grille 6. A motor 9 is installed on the side of the support frame 7 close to the filter grille 6. The output shaft of the motor 9 passes through the support frame 7 and is fixedly connected to the shaft of the air intake fan 8. A protective grille 10 is installed parallel to the support frame 7.

[0021] When the motor 9 is powered on, it drives the output shaft to rotate, which in turn drives the intake fan 8 to rotate synchronously through the rotating shaft that passes through the support frame 7. The fan blades generate negative pressure to draw in airflow, forcibly pushing the pre-filtered air toward the filter grille 6. The airflow passes through the mesh structure of the filter grille 6, and large particles and dust are physically intercepted. When dust accumulates on the filter grille 6, it can be pulled horizontally along the first guide groove 601 to slide the entire filter grille 6 out of the device for cleaning. The interlocking sliding design enables quick disassembly and assembly, and maintenance does not affect the core purification components. There is no need to disassemble other parts. The intake fan 8 driven by the motor 9 provides stable air pressure, overcomes the resistance of the dual-stage liquid bath, and ensures that polluted gas fully penetrates the liquid layer. The adjustable speed design adapts to the airflow requirements of different working conditions. The filter grille 6 independently undertakes the coarse filtration function, preventing dust from entering the liquid tank and contaminating the chemical agents, thus extending the life of the filter liquid. The protective grille 10 physically isolates external foreign objects, protects the high-speed rotating intake fan 8, and reduces the risk of mechanical failure.

[0022] A rectangular exhaust pipe 11 is installed on the top of the second sealing cover 501. The rectangular exhaust pipe 11 is connected to the second filtrate tank 5. A filter shell 12 is installed at the other end of the rectangular exhaust pipe 11. Guide blocks 1201 are installed on both sides of the inner wall of the filter shell 12. A filter box 13 is installed inside the filter shell 12. Vent holes 1301 are opened on the upper and lower sides of the filter box 13. Second guide rail grooves 1302 are opened on both sides of the filter box 13. The second guide rail grooves 1302 are fitted and connected to the guide blocks 1201. A pull ring 14 is installed on one side of the filter shell 12. An opening is made on the top of the filter shell 12 and an exhaust pipe 15 is installed.

[0023] The gas purified by the second filtration tank 5 is stored in the space below the second sealing cover 501 and is vertically introduced into the filter shell 12 through the rectangular exhaust pipe 11. The gas flows into the filter box 13 from below, penetrates the filter media such as activated carbon inside, and the purified gas is discharged clean air through the upper vent 1301 and finally from the exhaust pipe 15. Pulling the pull ring 14 causes the filter shell 12 to move to the side, and the filter box 13, which is fitted into the guide block 1201 and the second guide rail groove 1302, slides out along the rail to realize the rapid replacement or regeneration of the filter media. The pull ring 14 and the guide rail system realize non-contact replacement, eliminating the risk of personnel contacting the contaminated filter element. The filter box 13, as the fourth stage of filtration, deeply captures the trace aerosols and odor molecules remaining after the liquid bath purification.

[0024] The first filter tank 3 and the second filter tank 5 have openings on one side and are equipped with drain pipes 16. The first filter tank 3 and the second filter tank 5 have openings on the other side and are equipped with infusion pipes 17. The height of the infusion pipes 17 is higher than that of the drain pipes 16.

[0025] Fresh filtrate is injected into the first filtrate tank 3 and the second filtrate tank 5 through the infusion pipe 17. Because the infusion pipe 17 is installed at a high position, the overflow stops automatically when the liquid level rises to the pipe opening, ensuring that a gas phase buffer space is reserved in the tank. Saturated and expired filtrate is discharged from the bottom of the tank through the drain pipe 16. The low-position design achieves complete emptying and avoids residual waste liquid from contaminating the new liquid. The replacement liquids of the two tanks are set independently. Through valve switching, the other tank can continue to be purified during the draining and replenishment of one tank, ensuring uninterrupted ventilation in the workshop. The drain pipe 16 and the infusion pipe 17 are designed to be spatially separated, physically isolating the channels of new liquid and waste liquid, and completely avoiding the risk of cross-contamination.

[0026] A first outer shell 18 is sleeved between the support plate 1 and the protective grille 10, and a second outer shell 19 is installed between the second filter tank 5 and the support plate 1. The first filter tank 3 and the second filter tank 5 are installed on the inner wall of the second outer shell 19.

[0027] The first outer shell 18 is fitted between the support plate 1 and the protective grille 10 to form a sealed air duct, which forces the airflow of the intake fan 8 to pass through the filter grille 6 and the through hole 101 of the support plate 1 in a directional manner, eliminating lateral leakage. The second outer shell 19 encloses the first filter liquid tank 3 and the second filter liquid tank 5 and is rigidly connected to the support plate 1 to form an independent chamber, which physically isolates the volatile chemical liquid from the electrical components and reduces the risk of combustion and explosion.

[0028] Four sets of mounting plates 1801 are installed around the outer surface of the first outer shell 18, and mounting holes 1802 are opened in the mounting plates 1801.

[0029] Among them, the four sets of mounting plates are arranged in a circumferentially distributed layout, supporting various working conditions such as wall hanging, ground mounting, and equipment embedding, and adapting to the complex space constraints of the workshop.

[0030] In use, the device is placed in the location where it will be used. Polluted air first impacts the protective grille 10 to intercept large foreign objects. Then, the intake fan 8, driven by the motor 9, rotates to generate negative pressure, forcing the airflow to penetrate the filter grille 6. If dust accumulates, it can slide out along the first guide groove 601 for cleaning. Afterward, it enters the through hole 101 of the support plate 1. The airflow flows downward through the L-shaped exhaust pipe 2 into the sodium hydroxide solution at the bottom of the first filter liquid tank 3, forming bubbles. After neutralizing the acidic pollutants, the gas rises and accumulates below the first sealing cover 301. Clean gas is then introduced downward through the U-shaped exhaust pipe 4 into the sodium hypochlorite in the second filter liquid tank 5. The solution undergoes secondary oxidation and decomposition of organic matter. The final gas flows to the area below the second sealing cover 501 and is vertically introduced into the filter shell 12 through the rectangular exhaust pipe 11. It then penetrates the activated carbon medium in the filter box 13 from below. When replacement is required, the gas slides out along the guide block 1201 and the second guide rail groove 1302 via the pull ring 14 and is then discharged through the exhaust pipe 15. During operation and maintenance, new liquid is injected into the high-level infusion pipe 17, and the waste liquid is emptied through the low-level drain pipe 16. The first outer shell 18 is sleeved to form a closed air duct, and the second outer shell 19 fixes the double liquid tank to isolate steam. The four sets of mounting plates 1801 are fixed in multiple directions through the mounting holes 1802.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A ventilation and purification device for an infusion workshop, comprising a support plate (1), characterized in that: The support plate (1) is placed vertically, and several horizontal through holes (101) are opened in the support plate (1). An L-shaped exhaust pipe (2) is installed on one side of the support plate (1) corresponding to the through holes (101). One end of the L-shaped exhaust pipe (2) is fixedly connected to the support plate (1), and a first filter liquid tank (3) is installed on the same side as the L-shaped exhaust pipe (2). The other end of the L-shaped exhaust pipe (2) extends into the bottom of the first filter liquid tank (3), and a U-shaped exhaust pipe (4) is fixedly installed on the top of the first filter liquid tank (3). One end of the U-shaped exhaust pipe (4) is fixedly connected to the first sealing cover (301) of the first filter liquid tank (3), and a second filter liquid tank (5) is installed parallel to the first filter liquid tank (3). The other end of the U-shaped exhaust pipe (4) extends into the bottom of the second filter liquid tank (5). The second filtrate tank (5) is equipped with a second sealing cap (501) on top.

2. The ventilation and purification device for an infusion workshop according to claim 1, characterized in that: A filter grid (6) is installed parallel to the support plate (1). A first guide rail groove (601) is installed on both sides of the filter grid (6). The first guide rail groove (601) and the filter grid (6) are fitted together. A support frame (7) is installed parallel to the filter grid (6). An intake fan (8) is installed on the side of the support frame (7) away from the filter grille (6), and a motor (9) is installed on the side of the support frame (7) close to the filter grille (6). The output shaft of the motor (9) passes through the support frame (7) and is fixedly connected to the shaft of the intake fan (8). A protective grille (10) is installed parallel to the support frame (7).

3. The ventilation and purification device for an infusion workshop according to claim 1, characterized in that: A rectangular exhaust pipe (11) is installed on the top of the second sealing cover (501). The rectangular exhaust pipe (11) is connected to the second filtrate tank (5). A filter shell (12) is installed at the other end of the rectangular exhaust pipe (11). Guide blocks (1201) are installed on both sides of the inner wall of the filter shell (12). A filter box (13) is installed inside the filter shell (12). The filter box (13) has ventilation holes (1301) on the upper and lower sides, and second guide rail grooves (1302) on both sides of the filter box (13). The second guide rail grooves (1302) are fitted and connected to the guide block (1201). A pull ring (14) is installed on one side of the filter shell (12), and an air outlet pipe (15) is installed on the top of the filter shell (12).

4. The ventilation and purification device for an infusion workshop according to claim 1, characterized in that: The first filter tank (3) and the second filter tank (5) have openings on one side and are equipped with drain pipes (16), and the first filter tank (3) and the second filter tank (5) have openings on the other side and are equipped with infusion pipes (17). The height of the infusion pipes (17) is higher than that of the drain pipes (16).

5. The ventilation and purification device for an infusion workshop according to claim 1, characterized in that: A first outer shell (18) is sleeved between the support plate (1) and the protective grille (10), and a second outer shell (19) is installed between the second filter tank (5) and the support plate (1). The first filter tank (3) and the second filter tank (5) are installed on the inner wall of the second outer shell (19).

6. The ventilation and purification device for an infusion workshop according to claim 5, characterized in that: Four sets of mounting plates (1801) are installed around the outer surface of the first outer shell (18), and mounting holes (1802) are opened in the mounting plates (1801).

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