Vertical exhaust funnel

Abstract

The utility model discloses a vertical exhaust funnel, which relates to the technical field of exhaust funnels and comprises a mounting box, and the top of the mounting box is fixedly communicated with a funnel body; a main filter box is arranged at the top of the barrel, and a motor fan part is arranged in the barrel; two auxiliary filter boxes are symmetrically arranged at the two ends of the main filter box, a passive fan part is arranged on the inner side of the top of the main filter box, and a main activated carbon plate is arranged on the inner side of the bottom of the main filter box; movable partition plate parts are arranged on the inner sides of the ends, close to the main filter box, of the two auxiliary filter boxes, and auxiliary activated carbon plates are arranged on the inner sides of the other ends of the auxiliary filter boxes; a movable rod component is arranged at the top of the driven fan component; and a pressure spring is arranged at the top of the movable rod part. Through the structure, when the main activated carbon plate is blocked, the two movable partition plate components are rotated, so that the two auxiliary activated carbon plates work, waste gas is filtered and purified, the waste gas filtering effect is guaranteed, rapid replacement is facilitated, the maintenance difficulty is reduced, and production is prevented from being affected.

Description

Technical Field

[0001] This utility model relates to the field of exhaust pipe technology, specifically to a vertical exhaust pipe. Background Technology

[0002] Vertical exhaust stacks are extremely common and indispensable facilities in the industrial and construction sectors. Their core components include the stack body, foundation, supporting structure, exhaust port, and a series of auxiliary facilities. During industrial production and the operation of various building facilities, equipment continuously generates waste gas and flue gas. The vertical exhaust stack, with its unique structure, can efficiently guide these gases through the stack to high altitudes. At high altitudes, the gases are sufficiently diluted and diffused, thereby significantly reducing the degree of pollution to the surrounding environment.

[0003] To improve exhaust gas purification efficiency, existing vertical exhaust stacks typically incorporate activated carbon filter plates inside the stack for deep purification. However, due to factors such as operating time and pollutant concentration, the activated carbon filter plates are prone to pore blockage, leading to decreased adsorption efficiency and obstructed exhaust gas emissions. Regular cleaning and maintenance are necessary. However, because the filter plates are installed inside the tall stack, the high-altitude working environment is complex, and the operating space is limited, posing significant challenges and safety risks for maintenance personnel. Therefore, we propose a vertical exhaust stack to address the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a vertical exhaust stack to solve the problem mentioned in the background art. In order to improve the exhaust gas purification efficiency, existing vertical exhaust stacks generally add activated carbon filter plates inside the stack to achieve deep purification of exhaust gas. However, due to factors such as operating time and pollutant concentration, the activated carbon filter plates are prone to pore blockage, resulting in a decrease in adsorption efficiency and obstruction of exhaust gas emission. Regular cleaning and maintenance are required. However, since the filter plates are installed inside the tall stack, the high-altitude working environment is complex and the operating space is limited, and maintenance personnel face challenges such as high difficulty and high safety risks.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A vertical exhaust stack includes a mounting box, with a cylinder body fixedly connected to the top of the mounting box. A main filter box is installed at the top of the cylinder body, and a motor fan component is installed inside the cylinder body. Two auxiliary filter boxes are symmetrically arranged at both ends of the main filter box. A passive fan component is installed on the inner side of the top of the main filter box, and a main activated carbon plate is installed on the inner side of the bottom of the main filter box. Movable partition components are installed on the inner side of one end of the two auxiliary filter boxes near the main filter box, and auxiliary activated carbon plates are installed on the inner side of the other end of the auxiliary filter boxes. A movable rod component is installed on the top of the passive fan component, and a compression spring is installed on the top of the movable rod component.

[0007] The movable partition component includes a partition, and two partition rods are symmetrically and fixedly connected to the top two ends of the partition through the secondary filter box.

[0008] Furthermore, the main filter box includes a filter tube, the top of which is fixedly connected to a fan mounting pipe, and the bottom of which is fixedly connected to the cylinder.

[0009] Furthermore, the two auxiliary filter boxes are respectively fixedly connected to both ends of the filter tube. The passive fan component includes a fan mounting base, a passive fan is rotatably connected to the inside of the fan mounting base, the fan mounting base is fixedly connected to the inside of the fan mounting tube, a screw is fixedly connected to the top of the passive fan through the fan mounting base, and the main activated carbon plate is horizontally slidably connected to the filter tube.

[0010] Furthermore, the top two ends of the partition are rotatably connected to the secondary filter box, the secondary activated carbon plate is horizontally slidably connected to the secondary filter box, the movable rod component includes a threaded rod, two vertical slide rods are symmetrically fixedly connected to the bottom two ends of the threaded rod, the inner side of the threaded rod is threadedly connected to the screw, the bottom of the two vertical slide rods passes through the fan mounting pipe and two horizontal slide rods are symmetrically fixedly connected, the vertical slide rods are slidably connected to the fan mounting pipe, and the two ends of the two horizontal slide rods are respectively horizontally slidably connected to two partition pull rods at the same end of the two movable partition components.

[0011] Furthermore, the top of the compression spring is fixedly connected to the screw rod, and the bottom of the compression spring is in contact with the top of the threaded rod.

[0012] Furthermore, the motor fan component includes a motor mounting base, a motor is fixedly connected to the inner side of the motor mounting base, the motor mounting base is fixedly connected to the inside of the cylinder, and a smoke extraction fan is fixedly connected to the output end of the motor.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model uses a motor fan component to send exhaust gas through the mounting box and cylinder into the main filter box. The gas is then filtered and purified by the main activated carbon plate. The airflow passing through the main activated carbon plate drives the passive fan to rotate, which in turn drives the screw to rotate. This causes the threaded rod on the screw to move upward, counteracting the elastic force of the compression spring. When the main activated carbon plate is blocked, the airflow speed decreases, and the rotation speed of the passive fan decreases, making the upward force of the threaded rod less than the elastic force of the compression spring. This causes the two vertical sliding rods to slide down, which in turn causes the two horizontal sliding rods to rotate the partition rods at both ends of the partition, thus opening the partition and allowing the exhaust gas to enter the secondary filter box for filtration and purification by the secondary activated carbon plate, ensuring the filtration effect of the exhaust gas.

[0015] 2. This utility model has a simple structure, which allows for quick replacement by slidingly connecting the main activated carbon plate and the secondary activated carbon plate to the filter tube and the secondary filter box, respectively. This reduces maintenance difficulty and avoids affecting production. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side sectional view of the installation structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the motor fan component of this utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the passive fan component of this utility model;

[0020] Figure 5 This is a schematic diagram of the installation structure of the movable rod component of this utility model;

[0021] Reference numerals: 1. Mounting box; 2. Cylinder; 3. Main filter box; 301. Filter tube; 302. Fan mounting tube; 4. Motor fan assembly; 401. Motor mounting base; 402. Motor; 403. Smoke extraction fan; 5. Secondary filter box; 6. Passive fan assembly; 601. Fan mounting base; 602. Passive fan; 603. Screw; 7. Main activated carbon plate; 8. Movable partition assembly; 801. Partition; 802. Partition pull rod; 9. Secondary activated carbon plate; 10. Movable rod assembly; 1001. Threaded rod; 1002. Vertical slide rod; 1003. Horizontal slide rod; 11. Compression spring. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-5This utility model provides a technical solution: a vertical exhaust pipe, including a mounting box 1, a cylinder 2 fixedly connected to the top of the mounting box 1, a main filter box 3 set at the top of the cylinder 2, a motor fan component 4 set inside the cylinder 2, two auxiliary filter boxes 5 symmetrically arranged at both ends of the main filter box 3, a passive fan component 6 set on the inner side of the top of the main filter box 3, a main activated carbon plate 7 set on the inner side of the bottom of the main filter box 3, a movable partition component 8 set on the inner side of one end of the two auxiliary filter boxes 5 near the main filter box 3, an auxiliary activated carbon plate 9 set on the inner side of the other end of the auxiliary filter boxes 5, a movable rod component 10 set on the top of the passive fan component 6, and a compression spring 11 set on the top of the movable rod component 10;

[0024] The movable partition component 8 includes a partition 801, and two partition rods 802 are symmetrically and fixedly connected to the top two ends of the partition 801 through the secondary filter box 5.

[0025] The main filter box 3 includes a filter pipe 301, with a fan mounting pipe 302 fixedly connected to the top of the filter pipe 301, and the bottom of the filter pipe 301 fixedly connected to the cylinder 2.

[0026] Two auxiliary filter boxes 5 are fixedly connected to both ends of the filter tube 301. The passive fan component 6 includes a fan mounting base 601, with a passive fan 602 rotatably connected to the inside of the fan mounting base 601. The fan mounting base 601 is fixedly connected to the inside of the fan mounting tube 302. A screw 603 is fixedly connected to the top of the passive fan 602 through the fan mounting base 601. The main activated carbon plate 7 is horizontally slidably connected to the filter tube 301. In this example, by setting the passive fan component 6, the airflow passing through the main activated carbon plate 7 can be used to drive the movable rod component 10 to move, thereby controlling the opening and closing of the movable partition component 8 to ensure the filtration effect.

[0027] The top two ends of the partition 801 are rotatably connected to the secondary filter box 5, the secondary activated carbon plate 9 is horizontally slidably connected to the secondary filter box 5, the movable rod component 10 includes a threaded rod 1001, two vertical slide rods 1002 are symmetrically fixedly connected to the bottom two ends of the threaded rod 1001, the inner side of the threaded rod 1001 is threadedly connected to the screw 603, the bottom of the two vertical slide rods 1002 passes through the fan mounting tube 302 and two horizontal slide rods 1003 are symmetrically fixedly connected, the vertical slide rods 1002 are slidably connected to the fan mounting tube 302, and the two horizontal slide rods 1003 are horizontally slidably connected to the two partition pull rods 802 at the same end of the two movable partition components 8 respectively.

[0028] The top of the compression spring 11 is fixedly connected to the screw 603, and the bottom of the compression spring 11 is in contact with the top of the threaded rod 1001. In this example, by setting the compression spring 11, it can cooperate with the passive fan component 6 to control the opening and closing of the movable partition component 8.

[0029] The motor-fan component 4 includes a motor mounting base 401, a motor 402 fixedly connected to the inner side of the motor mounting base 401, and the motor mounting base 401 fixedly connected to the inside of the cylinder 2. A smoke extraction fan 403 is fixedly connected to the output end of the motor 402. In this example, by setting the motor-fan component 4, the exhaust gas flow rate can be increased, facilitating the rotation of the passive fan 602, thereby achieving the purpose of controlling the opening and closing of the movable partition component 8.

[0030] Working principle: Motor 402 drives the exhaust fan 403 to rotate, sending the exhaust gas through the mounting box 1 and cylinder 2 into the main filter box 3. The exhaust gas is then filtered and purified by the main activated carbon plate 7. The airflow passing through the main activated carbon plate 7 drives the passive fan 602 to rotate, which in turn drives the screw 603 to rotate. This causes the threaded rod 1001 on the screw 603 to move upward, counteracting the elastic force of the compression spring 11. This causes the movable rod component 10 to move upward, which in turn causes the two movable partition components 88 to close, blocking the exhaust gas from entering the two secondary filter boxes 5. When the main activated carbon plate 7 is blocked, the airflow speed decreases, and the rotation speed of the passive fan 602 decreases. This causes the upward force of the threaded rod 1001 to be less than the elastic force of the compression spring 11, causing the two vertical slide rods 1002 to slide downward. This causes the two horizontal slide rods 1003 to rotate the partition rods 802 at both ends of the partition 801, thus opening the partition 801 and allowing the exhaust gas to enter the secondary filter box 5 for filtration and purification by the secondary activated carbon plate 9.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical exhaust stack, characterized in that: The system includes an installation box (1), a cylinder (2) is fixedly connected to the top of the installation box (1), a main filter box (3) is provided on the top of the cylinder (2), a motor fan component (4) is provided inside the cylinder (2), two auxiliary filter boxes (5) are symmetrically arranged at both ends of the main filter box (3), a passive fan component (6) is provided on the inner side of the top of the main filter box (3), a main activated carbon plate (7) is provided on the inner side of the bottom of the main filter box (3), a movable partition component (8) is provided on the inner side of one end of the two auxiliary filter boxes (5) near the main filter box (3), and an auxiliary activated carbon plate (9) is provided on the inner side of the other end of the auxiliary filter box (5). A movable rod component (10) is provided on the top of the passive fan component (6), and a compression spring (11) is provided on the top of the movable rod component (10). The movable partition component (8) includes a partition (801), and two partition rods (802) are symmetrically fixedly connected to the top two ends of the partition (801) through the secondary filter box (5).

2. The vertical exhaust stack according to claim 1, characterized in that: The main filter box (3) includes a filter tube (301), the top of which is fixedly connected to a fan mounting tube (302), and the bottom of which is fixedly connected to the cylinder (2).

3. A vertical exhaust stack according to claim 2, characterized in that: The two auxiliary filter boxes (5) are fixedly connected to both ends of the filter tube (301). The passive fan component (6) includes a fan mounting base (601). A passive fan (602) is rotatably connected to the inside of the fan mounting base (601). The fan mounting base (601) is fixedly connected to the inside of the fan mounting tube (302). A screw (603) is fixedly connected to the top of the passive fan (602) through the fan mounting base (601). The main activated carbon plate (7) is horizontally slidably connected to the filter tube (301).

4. A vertical exhaust stack according to claim 3, characterized in that: The top two ends of the partition (801) are rotatably connected to the secondary filter box (5), the secondary activated carbon plate (9) is horizontally slidably connected to the secondary filter box (5), the movable rod component (10) includes a threaded rod (1001), the bottom two ends of the threaded rod (1001) are symmetrically fixedly connected to two vertical slide rods (1002), the inner side of the threaded rod (1001) is threadedly connected to the screw (603), the bottom of the two vertical slide rods (1002) passes through the fan mounting tube (302) and is symmetrically fixedly connected to two horizontal slide rods (1003), the vertical slide rods (1002) are slidably connected to the fan mounting tube (302), and the two ends of the two horizontal slide rods (1003) are respectively horizontally slidably connected to two partition pull rods (802) at the same end of the two movable partition components (8).

5. A vertical exhaust stack according to claim 4, characterized in that: The top of the compression spring (11) is fixedly connected to the screw (603), and the bottom of the compression spring (11) is in contact with the top of the threaded rod (1001).

6. A vertical exhaust stack according to claim 1, characterized in that: The motor fan component (4) includes a motor mounting base (401), a motor (402) is fixedly connected to the inner side of the motor mounting base (401), the motor mounting base (401) is fixedly connected to the inside of the cylinder (2), and a smoke extraction fan (403) is fixedly connected to the output end of the motor (402).

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