A gas emission filtration device for environmental monitoring

Abstract

This application relates to the field of environmental monitoring equipment technology, and in particular to a gas emission filtration device for environmental monitoring, comprising a housing, a rotating filter assembly, a power assembly, and an impurity collection assembly. The housing has an air inlet and an air outlet. The rotating filter assembly contains multiple layers of concentric annular filter screens with gaps between the layers. The power assembly drives the filter screens to rotate. The impurity collection assembly is located below. Centrifugal blades are provided between adjacent filter screens to enhance impurity separation; a unidirectional flow assembly is provided at the air outlet to prevent gas backflow. The device increases the filtration area through multiple layers of filter screens, reduces clogging by rotating the filter screens, assists in impurity separation with centrifugal blades, and ensures unidirectional gas discharge through the unidirectional flow assembly. This device effectively solves the problems of easy clogging and low efficiency in existing filtration devices, achieving efficient and stable filtration, meeting environmental protection requirements, and is suitable for various gas emission scenarios.

Description

Technical Field

[0001] This application relates to the field of environmental monitoring equipment technology, and in particular to a gas emission filtration device for environmental monitoring. Background Technology

[0002] In today's industrial production and daily life, large amounts of gases are emitted into the atmosphere. These gases often contain various impurities, such as dust, particulate matter, aerosols, and harmful gas molecules. As people's awareness of environmental protection continues to increase, the requirements for the purification of gas emissions are becoming increasingly stringent.

[0003] Among common gas filtration methods, traditional fixed-screen filters, while simple in structure, have several drawbacks. When the gas contains a high amount of impurities, the filter screen is prone to clogging, leading to poor gas flow and a sharp decline in filtration efficiency. For example, in industrial waste gas emission scenarios with high dust content, fixed-screen filters may be covered in dust within a short time, requiring frequent filter replacements. This not only increases maintenance costs but also causes production interruptions, impacting production efficiency.

[0004] Therefore, an environmental monitoring gas emission filtration device is invented to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a gas emission filtration device for environmental monitoring, so as to solve the problems of easy clogging of the filter screen and poor filtration effect in existing gas filtration devices.

[0006] This application provides a gas emission filtration device for environmental monitoring, employing the following technical solution: It includes a housing, a rotating filter assembly disposed inside the housing, a power assembly for driving the rotating filter assembly to rotate, and an impurity collection assembly; the housing has an air inlet and an air outlet; the rotating filter assembly includes multiple layers of annular filter screens, the multiple annular filter screens being concentrically arranged with gaps between layers, and the axis of the annular filter screens coinciding with the axis of the housing; the power assembly is used to drive the multiple annular filter screens to rotate synchronously; the impurity collection assembly is disposed below the rotating filter assembly and is used to collect impurities that fall off the annular filter screens.

[0007] Optionally, multiple arc-shaped centrifugal blades are evenly arranged along the circumferential direction between two adjacent layers of the annular filter screen, and the centrifugal blades rotate together with the annular filter screen.

[0008] Optionally, the power assembly includes a fixed housing fixed to an outer shell, a drive motor mounted on the fixed housing, a transmission block mounted on the output end of the drive motor, a rotating plate slidably mounted on the transmission block, a rotating filter assembly mounted on the rotating plate, a connecting compression spring between the rotating plate and the transmission block, two cylindrical blocks symmetrically arranged inside the fixed housing, and multiple contact protrusions that can contact the cylindrical blocks on the periphery of the rotating plate.

[0009] Optionally, a support column is provided at the bottom of the rotating plate, the support column is provided on the periphery of each annular filter screen, and an annular plate is provided at the bottom of the support column.

[0010] Optionally, the impurity collection assembly includes a collection trough disposed at the bottom of the outer casing, the collection trough being connected to the outer casing, the bottom of the collection trough being inclined, and a discharge port being provided at the lower end.

[0011] Optionally, a one-way flow component is provided at the air outlet to prevent gas backflow. The one-way flow component includes an exhaust pipe with an exhaust port inside. A first compression spring is provided inside the exhaust pipe, and a sealing block is provided on the top of the first compression spring to seal the exhaust port.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. High-efficiency filtration: By setting up multiple ring-shaped filter screens, which are concentrically arranged with gaps between the layers, the contact area between the gas and the filter screen and the filtration path are increased, which can more comprehensively intercept impurities in the gas and improve filtration efficiency.

[0014] 2. Prevent filter clogging: The power unit drives the multi-layer annular filter to rotate synchronously. During the rotation, impurities attached to the filter are more easily dislodged by centrifugal force and other forces, reducing the accumulation of impurities on the filter, effectively preventing filter clogging, extending the service life of the filter, and reducing maintenance costs.

[0015] 3. Assisted impurity separation: Multiple arc-shaped centrifugal blades evenly arranged along the circumference between two adjacent annular filter layers rotate together with the annular filter, which can further enhance the centrifugal separation of impurities in the gas, making it easier for impurities to be separated from the gas and fall into the impurity collection component below, thus improving the impurity collection effect.

[0016] 4. Stable support: The support columns at the bottom of the rotating plate and the annular plate at the bottom of the support columns provide stable support for the rotating filter assembly, ensuring the stability of the rotating filter assembly during rotation, thereby ensuring the stability of the filtration effect.

[0017] 5. Facilitates impurity collection and treatment: The impurity collection component includes a collection trough located at the bottom of the outer casing. The collection trough is connected to the outer casing and is inclined at the bottom. A discharge port is provided at the lower end to facilitate the collection of impurities that fall off the annular filter screen and to facilitate the discharge of impurities through the discharge port for subsequent processing.

[0018] 6. Preventing gas backflow: The one-way flow component installed at the gas outlet, including the exhaust pipe, the first compression spring inside the exhaust pipe, and the sealing block at the top that can seal the exhaust port, can effectively prevent gas backflow, ensure that the filtered gas is discharged in one direction, avoid the filtered gas being recontaminated, and improve the reliability of the filtration device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the device;

[0020] Figure 2 This is a cross-sectional view of the overall structure of the device. Figure I ;

[0021] Figure 3 This is a cross-sectional view of the overall structure of the device. Figure II ;

[0022] Figure 4 This is a cross-sectional view of the overall structure of the device. Figure III ;

[0023] Figure 5 This is a schematic diagram of the rotating filter assembly of this device;

[0024] The components are as follows: 1. Outer shell; 2. Rotary filter assembly; 3. Power assembly; 4. Impurity collection assembly; 5. Air inlet; 6. Air outlet; 7. Annular filter screen; 8. Centrifugal blades; 9. Fixed shell; 10. Drive motor; 11. Transmission block; 12. Rotating plate; 13. Connecting compression spring; 14. Cylindrical block; 15. Contact protrusion; 16. Support column; 17. Annular plate; 18. Collection trough; 20. Unidirectional flow assembly; 21. Exhaust pipe; 22. Exhaust port; 23. First compression spring; 24. Sealing block. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 the present utility model 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 the present utility model.

[0026] Reference Figure 1 , Figure 2 , Figure 3 One embodiment shown is as follows: The gas emission filtration device includes a housing 1, which provides protection and a mounting base for the entire device. A power assembly 3 is fixedly installed inside the housing 1. The output end of the power assembly 3 is connected to a rotating filter assembly 2, thereby driving the rotation of the rotating filter assembly 2. An air inlet 5 is provided on the side wall of the housing 1 to introduce the gas to be filtered, and an air outlet 6 is provided on the other side of the housing 1 or at a suitable location to discharge the filtered gas. The rotating filter assembly 2 includes multiple layers of annular filter screens 7, which are concentrically nested from the inside out, with a certain gap between adjacent layers of annular filter screens 7. The axis of each annular filter screen 7 is collinear with the axis of the housing 1, ensuring that the gas can flow and be filtered uniformly between the annular filter screens 7. An impurity collection assembly 4 is fixedly installed at the bottom of the housing 1, directly below the rotating filter assembly 2, with its collection port facing upwards to collect impurities falling from the annular filter screens 7. In this embodiment, the outer shell 1 is integrally formed from metal material, which has good strength and sealing performance; the power component 3 is fixed to the outer shell 1 by bolts; the multi-layer annular filter 7 is fixed to the output end of the power component 3 by welding to ensure that the power can be stably transmitted and drive the annular filter 7 to rotate synchronously; the impurity collection component 4 is fixedly connected to the bottom of the outer shell 1 by screws.

[0027] The implementation principle of the above embodiment is as follows: Gas containing impurities enters the interior of the outer casing 1 through the air inlet 5 and flows between multiple concentric annular filters 7 with gaps between the layers. The impurities are intercepted by the annular filters 7. The power component 3 drives the annular filters 7 to rotate synchronously, making it easier for the impurities attached to the filters to fall off due to centrifugal force and other effects. The fallen impurities fall into the impurity collection component 4 below under the action of gravity. The filtered gas is discharged from the air outlet 6, thus realizing gas filtration and impurity collection.

[0028] Reference Figure 3 One embodiment shown depicts multiple arc-shaped centrifugal blades 8 evenly distributed circumferentially between two adjacent annular filter layers 7. Each centrifugal blade 8 is fixedly connected to its two adjacent annular filter layers 7 by welding, allowing the centrifugal blade 8 to rotate synchronously with the rotation of the annular filter layers 7. In this embodiment, the centrifugal blades 8 are made of a lightweight and high-strength alloy material, and their arc-shaped structure design better facilitates gas stirring and centrifugal action. The welding connection between the centrifugal blades 8 and the annular filter layers 7 ensures the stability and reliability of the centrifugal blades 8 during rotation, while also facilitating installation and disassembly.

[0029] The implementation principle of the above embodiment is as follows: When gas flows between two adjacent annular filter screens 7, the centrifugal blades 8, which rotate with the annular filter screens 7, stir the gas, causing the gas to generate centrifugal force. Under the action of centrifugal force, impurities in the gas are more likely to move to the outside of the filter screen, thereby separating from the gas. Finally, the impurities fall off the filter screen and into the impurity collection component 4 below, further improving the separation and collection effect of impurities and enhancing the filtration efficiency of the entire filtration device.

[0030] Reference Figure 3 , Figure 4 One embodiment is shown as follows: The mounting shell 9 of the power assembly 3 is bolted to a specific position inside the outer shell 1, providing mounting support for other components. A drive motor 10 is fixedly mounted on the top of the mounting shell 9 with screws. The output shaft of the drive motor 10 is connected to the transmission block 11 via a key to transmit power. The transmission block 11 is fixed to the output end of the drive motor 10. A rotating plate 12 is slidably connected to the transmission block 11. The top of the rotating plate 12 is bolted to the rotating filter assembly 2 to drive the rotating filter assembly 2 to rotate. A connecting spring 13 is provided between the rotating plate 12 and the transmission block 11. One end of the connecting spring 13 is sleeved on the middle of the rotating plate 12, and the other end abuts against the transmission block 11. The elastic force of the connecting spring 13 maintains a certain connection between the rotating plate 12 and the transmission block 11. Two cylindrical blocks 14 are symmetrically arranged inside the mounting shell 9, and the cylindrical blocks 14 are fixed to the inner wall of the mounting shell 9 by welding. Multiple contact protrusions 15 are evenly arranged on the periphery of the rotating plate 12. The contact protrusions 15 and the rotating plate 12 are integrally formed, and the contact protrusions 15 can contact the cylindrical block 14. In this embodiment, the fixing shell 9 is made of high-strength plastic material, which has good insulation and lightweight characteristics. The arrangement of the cylindrical block 14 and the contact protrusions 15 can cause the rotating plate 12 to vibrate to a certain extent during the rotation of the rotating plate 12, which helps impurities to fall off the rotating filter assembly 2.

[0031] The implementation principle of the above embodiment is as follows: After the drive motor 10 starts, it transmits power to the rotating plate 12 through the transmission block 11, and the rotating plate 12 drives the rotating filter assembly 2 to rotate. Since the rotating plate 12 can slide on the transmission block 11, and the contact protrusions 15 on the periphery of the rotating plate 12 will contact the cylindrical block 14 inside the fixed shell 9, vibration will be generated during rotation. This vibration, combined with the action of the connecting spring 13, makes it easier for impurities on the filter screen to fall off when the rotating filter assembly 2 rotates. At the same time, the connecting spring 13 can play a buffering and adjusting role during rotation, ensuring the stability and reliability of rotation.

[0032] Reference Figure 2 , Figure 5One embodiment is shown as follows: Multiple support columns 16 are vertically fixedly connected to the bottom of the rotating plate 12. The number of support columns 16 corresponds to the number of annular filters 7, and each support column 16 is positioned around the periphery of each annular filter 7. The tops of the support columns 16 are fixedly connected to the rotating plate 12 by welding, ensuring a strong connection. At the bottom of each support column 16, an annular plate 17 is horizontally fixedly connected. The annular plate 17 is located at the bottom of the annular filter 7, providing support without affecting the flow of gas between the annular filters 7. In this embodiment, both the support columns 16 and the annular plate 17 are made of metal, possessing high strength and stability. The welded connections between the support columns 16 and the rotating plate 12, and between the support columns 16 and the annular plate 17, ensure stable support for the annular filters 7 during rotation of the rotating filter assembly 2, preventing the annular filters 7 from shaking or shifting, and ensuring the stability of the filtration effect.

[0033] The implementation principle of the above embodiment is as follows: When the rotating plate 12 drives the rotating filter assembly 2 to rotate, the support column 16 and the annular plate 17 provide a stable support structure for the annular filter screen 7. The support column 16 transmits the force of the rotating plate 12 to the annular plate 17, and the annular plate 17 is evenly supported at the bottom of the annular filter screen 7, so that the annular filter screen 7 remains stable during rotation, avoiding the filtration effect due to shaking, and also extending the service life of the annular filter screen 7.

[0034] Reference Figure 1 , Figure 2 One embodiment shown is as follows: the collection tank 18 of the impurity collection assembly 4 is fixedly installed at the bottom of the outer casing 1 by welding. The top opening of the collection tank 18 is connected to the interior of the outer casing 1 to receive impurities that fall off the rotary filter assembly 2. The bottom of the collection tank 18 is inclined, and a discharge port is provided at its lower end. A closable sealing cap can be installed at the discharge port and sealed by threaded connection or other suitable means. In this embodiment, the collection tank 18 is made of stainless steel, which has good corrosion resistance and strength, facilitating the collection and cleaning of impurities. The welded connection between the collection tank 18 and the outer casing 1 ensures the airtightness of the connection and prevents impurity leakage. The inclined design of the bottom of the collection tank 18 allows impurities to automatically gather towards the discharge port under gravity, making it easy to discharge the impurities by opening the sealing cap of the discharge port.

[0035] The implementation principle of the above embodiment is as follows: impurities falling off the rotating filter assembly 2 fall into the collection tank 18 under the action of gravity. Since the bottom of the collection tank 18 is inclined, the impurities will slide and accumulate along the inclined bottom towards the discharge port. When it is necessary to clean the impurities, the sealing cover of the discharge port is opened, and the impurities can be discharged from the discharge port, realizing convenient collection and treatment of impurities and ensuring that the filtration device can operate continuously and stably.

[0036] Reference Figure 2 One embodiment is shown as follows: An exhaust pipe 21 is fixedly installed at the air outlet 6 of the outer casing 1 via a threaded connection. An exhaust port 22 is provided inside the exhaust pipe 21 for gas discharge. Inside the exhaust pipe 21, below the exhaust port 22, a first compression spring 23 is located. The bottom of the first compression spring 23 abuts against a specific protrusion inside the exhaust pipe 21, and its top is fixedly connected to a sealing block 24. The sealing block 24 has a block-shaped structure, and its size is adapted to the exhaust port 22 to seal it. In this embodiment, the exhaust pipe 21 is made of metal, possessing good strength and corrosion resistance; the first compression spring 23 has a suitable elastic coefficient, allowing it to compress under gas pressure, causing the sealing block 24 to open the exhaust port 22. Simultaneously, after the gas pressure disappears, the elastic force pushes the sealing block 24 to re-close the exhaust port 22; the sealing block 24 and the first compression spring 23 are fixedly connected by welding to ensure a strong connection. The threaded connection between the exhaust pipe 21 and the outer casing 1 facilitates installation and disassembly, and makes it convenient to maintain and repair the unidirectional flow component 20.

[0037] The implementation principle of the above embodiment is as follows: When the filtered gas flows from the outlet 6 to the exhaust pipe 21, the gas pressure acts on the sealing block 24, overcoming the elastic force of the first compression spring 23, and pushing the sealing block 24 upward, thereby opening the exhaust port 22 and allowing the gas to be discharged smoothly. When the gas pressure inside the device decreases or there is a tendency for external gas to flow back, under the elastic force of the first compression spring 23, the sealing block 24 moves downward, re-sealing the exhaust port 22 tightly, preventing external gas from flowing back into the device, ensuring that the filtered gas is discharged in one direction, and improving the reliability and filtration effect of the filtration device.

[0038] The working principle of this device is as follows: Gas containing impurities enters through the inlet 5 and flows between multiple concentric annular filter screens 7, where impurities are intercepted. The power unit 3 drives the filter screens to rotate synchronously, and centrifugal force makes it easier for impurities to fall off. Centrifugal blades 8 between adjacent filter screens agitate the gas, further promoting impurity separation. The fallen impurities fall into the inclined collection tank 18 under gravity and accumulate along the bottom of the tank towards the discharge port for easy discharge. The filtered gas flows towards the outlet 6. When the gas pressure reaches a certain value, it overcomes the elastic force of the first compression spring 23 in the exhaust pipe 21, pushes open the sealing block 24, and discharges from the exhaust port 22. When the pressure decreases, the first compression spring 23 pushes the sealing block 24 to re-close the exhaust port 22, preventing gas backflow. All components work together to achieve efficient gas filtration, convenient impurity collection, and unidirectional gas discharge, ensuring stable operation of the device.

[0039] The working principle of this device has been explained through the above embodiments. These embodiments only illustrate several implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A gas emission filtering device for environmental detection, characterized by: The system includes an outer shell (1), a rotating filter assembly (2) disposed inside the outer shell (1), a power assembly (3) for driving the rotating filter assembly (2) to rotate, and an impurity collection assembly (4); the outer shell (1) is provided with an air inlet (5) and an air outlet (6); the rotating filter assembly (2) includes multiple annular filters (7), the multiple annular filters (7) are arranged concentrically with gaps between the layers, and the axis of the annular filters (7) coincides with the axis of the outer shell (1); the power assembly (3) is used to drive the multiple annular filters (7) to rotate synchronously; the impurity collection assembly (4) is disposed below the rotating filter assembly (2) and is used to collect impurities that fall off the annular filters (7).

2. The gas emission filtering device for environmental detection according to claim 1, characterized in that: Multiple arc-shaped centrifugal blades (8) are evenly arranged along the circumference between two adjacent layers of the annular filter screen (7), and the centrifugal blades (8) rotate together with the annular filter screen (7).

3. The gas emission filtering device for environmental detection according to claim 1, characterized in that: The power assembly (3) includes a fixed shell (9), which is fixed on the outer shell (1). A drive motor (10) is provided on the fixed shell (9). A transmission block (11) is provided at the output end of the drive motor (10). A rotating plate (12) is slidably provided on the transmission block (11). The rotating filter assembly (2) is provided on the rotating plate (12). A connecting spring (13) is provided between the rotating plate (12) and the transmission block (11). Two cylindrical blocks (14) are symmetrically arranged inside the fixed shell (9). A plurality of contact protrusions (15) that can contact the cylindrical blocks (14) are provided on the periphery of the rotating plate (12).

4. The gas emission filtering device for environmental detection according to claim 3, characterized in that: The bottom of the rotating plate (12) is provided with a support column (16), the support column (16) is provided on the periphery of each annular filter screen (7), and the bottom of the support column (16) is provided with an annular plate (17).

5. The gas emission filtering device for environmental detection according to claim 1, characterized in that: The impurity collection component (4) includes a collection groove (18) disposed at the bottom of the outer shell (1). The collection groove (18) is connected to the outer shell (1). The bottom of the collection groove (18) is inclined and a discharge port is provided at the lower end.

6. The gas emission filtering device for environmental detection according to claim 1, characterized in that: The outlet (6) is provided with a one-way flow component (20) to prevent gas backflow. The one-way flow component (20) includes an exhaust pipe (21), an exhaust port (22) is provided inside the exhaust pipe (21), a first compression spring (23) is provided inside the exhaust pipe (21), and a sealing block (24) is provided on the top of the first compression spring (23) to seal the exhaust port (22).

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