Dustproof exhaust gas monitoring box with magnetic attraction

Abstract

The application relates to the exhaust gas monitoring technical field, in particular to a magnetic dustproof exhaust gas monitoring box, which comprises a multilayer dustproof module, a core detection assembly and a detachable shell. The multilayer dustproof module reduces dust into the box through a metal filter screen and electrostatic adsorption material; the core detection assembly comprises a gas sensor, a cooling air duct and a micro fan, and can ensure monitoring precision and stability; the detachable shell is quickly assembled through a magnetic attraction connection mode, and the sealing performance is enhanced through a sealing strip and a locking mechanism. A movable base is arranged at the bottom of the box body, so that the flexibility of the equipment is improved; a side maintenance window and a light strip facilitate maintenance. The application can effectively prevent dust from affecting monitoring precision, simplify the disassembly and maintenance process, adapt to various complex environments, and provide an efficient and intelligent exhaust gas monitoring solution.

Description

Technical Field

[0001] This utility model belongs to the field of environmental monitoring and pollution control technology, specifically a magnetic dustproof exhaust gas monitoring box. Background Technology

[0002] When monitoring industrial waste gas, appropriate waste gas monitoring equipment is required. This equipment samples and analyzes the emitted gases to achieve accurate detection of pollutant concentrations. However, some existing waste gas monitoring devices often lack effective dust prevention measures during actual use. In high-dust environments, dust accumulation can easily lead to decreased monitoring accuracy or equipment malfunction. Furthermore, these devices often employ traditional fixed installation methods, making disassembly and maintenance complex, increasing operational time costs and technical difficulty.

[0003] A search revealed a rain and snow weather anti-clogging exhaust gas monitoring device (publication number CN114646728B, publication date August 20, 2024). This design addresses the problem of inlet icing under low-temperature and humid conditions by incorporating an anti-clogging air guiding system and a heating module, and also filters airborne dust particles. However, this device is primarily designed for rain and snow weather; its dust-proof effect is limited in long-term high-dust environments, and it does not address how to achieve rapid disassembly and maintenance, thus potentially leading to a decrease in monitoring accuracy.

[0004] A search revealed an online monitoring device for waste gas treatment, with publication number CN114047294B and publication date February 27, 2024. This design achieves convenient movement and stable mounting of the device by incorporating casters and a triangular mounting bracket at the bottom of the cabinet. While this design improves the device's flexibility, its dustproof performance is insufficient, especially in industrial environments where significant dust can enter the monitoring box, affecting the normal operation of the sensors. Furthermore, the device does not employ a magnetic suction structure, making disassembly and assembly cumbersome and failing to meet the needs of rapid maintenance. Utility Model Content

[0005] This utility model provides a magnetic dustproof exhaust gas monitoring box, which aims to solve the problem that existing exhaust gas monitoring equipment suffers from decreased monitoring accuracy or equipment failure due to dust accumulation in high dust environments, while also improving the complexity of disassembly and maintenance caused by traditional fixed installation methods.

[0006] The present invention adopts the following technical solution:

[0007] A magnetic dustproof exhaust gas monitoring box includes: a multi-layer dustproof module disposed on the top of the box for preliminary filtration of incoming gas; a core detection component located in the inner cavity of the box for analyzing gas composition; and a detachable outer shell that is quickly assembled with the box via a magnetic connection, wherein the detachable outer shell and the box form a sealed space to prevent external dust from entering.

[0008] Preferably, the multi-layer dustproof module includes: a first filter screen fixedly installed at the air inlet at the top of the housing, the first filter screen being made of metal and having a microporous structure for blocking large dust particles; a second filter screen disposed below the first filter screen, the second filter screen being made of electrostatic adsorption material for capturing suspended fine particles; and a guide plate installed at the bottom of the second filter screen, the guide plate being inclined and having a dust-repellent coating on its surface for guiding dust that has not been completely intercepted to be discharged along the inclined direction.

[0009] Preferably, the core detection component includes: a sensor bracket fixedly installed in the inner cavity of the housing, on which multiple sets of gas sensors are mounted, each set of gas sensors being electrically connected to the control unit via a signal line; a cooling duct disposed on one side of the sensor bracket, one end of which is connected to the outside air and the other end extending to the vicinity of the sensor bracket to reduce the operating temperature of the gas sensors; and a miniature fan installed at the outlet of the cooling duct, the miniature fan being fixed to the inner wall of the cooling duct by bolts and connected to the control unit via a power cord.

[0010] Preferably, the detachable outer shell includes: a protective cover covering the outside of the housing, the inner wall of which is embedded with multiple permanent magnets that cooperate with magnetic receiving plates on the outer wall of the housing to achieve quick assembly and disassembly; a sealing strip around the protective cover, the sealing strip being made of flexible rubber material with a "U" shaped cross-section, used to fill the gap between the protective cover and the housing; and a locking mechanism fixedly installed at the bottom of the protective cover, the locking mechanism including a rotating handle and a buckle, the rotating handle being rotatably connected to the protective cover via a pin, and the buckle matching a groove at the bottom of the housing to further enhance the connection stability between the protective cover and the housing.

[0011] Preferably, the bottom of the housing is provided with a movable base, the movable base including: a slide rail fixedly installed on the bottom of the housing, with limit blocks at both ends of the slide rail to limit the range of movement of the housing in the horizontal direction; rollers installed on the slide rail, the rollers being movably connected to the slide rail via bearings; and support feet provided behind the rollers, the support feet being connected to the bottom of the housing via threaded rods to adjust the height and level of the housing.

[0012] Preferably, the side of the enclosure has an inspection window, and the edge of the inspection window is provided with a sealing ring. The sealing ring is made of silicone material and has a thickness of 3mm to ensure the sealing performance when the inspection window is closed. The inside of the inspection window is provided with a lighting strip, which is fixed to the inner wall of the enclosure by a slot and connected to the control unit by a wire to assist the operator in maintenance at night or in low light conditions.

[0013] Preferably, the control unit includes: a circuit board fixedly installed on the rear side of the inner cavity of the enclosure, the circuit board integrating a processor, a memory and a communication module; a display screen disposed in front of the circuit board, the display screen being electrically connected to the circuit board via a ribbon cable for displaying gas monitoring data in real time; and a backup battery installed below the circuit board, the backup battery being fixed to the bottom of the enclosure via a clip for supplying power to the control unit in the event of a power outage.

[0014] Compared to existing technologies, the magnetic dustproof exhaust gas monitoring box provided in this solution effectively reduces the possibility of dust entering the box through multi-layer dustproof modules, thereby improving monitoring accuracy. The magnetic connection method enables quick assembly and disassembly of the detachable outer shell, simplifying the maintenance process. The movable base enhances the flexibility and stability of the equipment, making it adaptable to various working environments. Furthermore, the design of the inspection window and lighting strip further improves the ease of operation, providing a more intelligent, efficient, and environmentally adaptable solution for industrial exhaust gas monitoring. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the multi-layer dustproof module.

[0017] Figure 3 This is a magnified view of the detachable outer shell connected to the housing.

[0018] Figure 4 This is a schematic diagram of the movable base at the bottom of the box.

[0019] Figure 5 A partial view of the inspection window and lighting strip.

[0020] In the diagram, 1. Housing; 2. Multi-layer dustproof module; 3. First filter screen; 4. Second filter screen; 5. Deflector plate; 6. Removable outer shell; 7. Protective cover; 8. Permanent magnet; 9. Sealing strip; 10. Locking mechanism; 11. Movable base; 12. Slide rail; 13. Roller; 14. Support foot; 15. Inspection window; 16. Sealing ring; 17. Lighting strip. Detailed Implementation

[0021] To facilitate understanding of the technical solution of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] This utility model provides a magnetic dustproof exhaust gas monitoring box, the overall structure of which is as follows: Figure 1 As shown, the device includes a housing 1, a multi-layer dustproof module 2 located on the top of the housing, a core detection component located inside the housing cavity, and a detachable outer shell 6 that is quickly assembled with the housing via magnetic connection. The housing 1 serves as the main load-bearing component of the entire device, its internal space housing the core detection component, while its external components work together to form a complete dustproof and monitoring system. The multi-layer dustproof module 2 is fixedly installed at the air inlet at the top of the housing 1 to perform preliminary filtration of the incoming air, preventing dust from entering the housing and affecting monitoring accuracy. The detachable outer shell 6 covers the outside of the housing 1, is quickly assembled with the housing 1 via magnetic connection, and forms a sealed space between the two to prevent external dust intrusion.

[0024] The specific structure of the multi-layer dustproof module 2 is as follows: Figure 2 As shown, the system includes a first filter 3, a second filter 4, and a baffle plate 5. The first filter 3 is made of metal and has a microporous structure. It is directly fixed to the air inlet at the top of the housing 1 to block large dust particles. Below the first filter 3, the second filter 4 is located. The second filter 4 is made of electrostatic adsorption material and can capture suspended fine particles, further improving the filtration effect. The baffle plate 5 is installed at the bottom of the second filter 4, is inclined, and has a dust-repellent coating on its surface. The bottom end of the baffle plate 5 is connected to the groove of the outer shell of the multi-layer dustproof module 2, which can be used to guide the dust that is not completely intercepted to be discharged along the inclined direction. The first filter 3 is fixed to the top of the housing 1 by bolts or welding. The second filter 4 is inserted into the reserved position below the first filter 3 through a slot structure. The baffle plate 5 is fixed to the inner wall of the housing 1 by screws and maintains a certain distance from the second filter 4 to ensure smooth air flow while achieving the dust guiding function.

[0025] The core detection component is housed within the inner cavity of housing 1, and its specific structure includes a sensor bracket, a cooling duct, and a miniature fan. The sensor bracket is bolted to the center of the inner cavity of housing 1, and multiple gas sensors are mounted on the bracket. Each gas sensor is electrically connected to the control unit via a signal line for real-time monitoring of gas composition. The cooling duct is located on one side of the sensor bracket, with one end open to the outside air and the other end extending near the sensor bracket to reduce the operating temperature of the gas sensors. A miniature fan is installed at the outlet of the cooling duct, bolted to the inner wall of the cooling duct and connected to the control unit via a power cable. The relative positions of the sensor bracket, cooling duct, and miniature fan are optimized to ensure that the gas sensors can operate efficiently within a suitable temperature range while preventing inaccurate monitoring data due to overheating.

[0026] The specific structure of the detachable outer shell 6 is as follows: Figure 3 As shown, the enclosure includes a protective cover 7, permanent magnets 8, a sealing strip 9, and a locking mechanism 10. The protective cover 7 covers the outside of the housing 1, and multiple permanent magnets 8 are embedded in its inner wall. The permanent magnets 8 cooperate with the magnetic receiving plates on the outer wall of the housing 1 to achieve quick assembly and disassembly. The sealing strip 9 is located around the protective cover 7 and is made of flexible rubber material with a "U" shaped cross-section. It is used to fill the gap between the protective cover 7 and the housing 1 to ensure the airtightness between them. The locking mechanism 10 is fixedly installed at the bottom of the protective cover 7 and includes a rotating handle and a buckle. The rotating handle is rotatably connected to the protective cover 7 through a pin, and the buckle matches a groove at the bottom of the housing 1 to further enhance the connection stability between the protective cover 7 and the housing 1. After the protective cover 7 is attracted to the outer wall of the housing 1 by the permanent magnets 8, rotating the handle drives the buckle to lock with the groove at the bottom of the housing 1, thereby completing the assembly process of the detachable outer shell 6.

[0027] The bottom of the housing 1 is equipped with a movable base 11, the specific structure of which is as follows: Figure 4 As shown, the device includes a slide rail 12, rollers 13, and support feet 14. The slide rail 12 is fixedly installed at the bottom of the housing 1, with limit blocks at both ends to limit the horizontal movement range of the housing 1. The rollers 13 are movably connected to the slide rail 12 via bearings, allowing them to roll along the slide rail 12 and thus enabling flexible movement of the housing 1. The support feet 14 are located behind the rollers 13 and connected to the bottom of the housing 1 via threaded rods, used to adjust the height and level of the housing 1. The rollers 13 extend when movement is needed and retract when the device is fixed. The support feet 14 adjust their height by rotating the threaded rods, keeping the housing 1 stable. The coordinated action of the slide rail 12, rollers 13, and support feet 14 allows the housing 1 to be flexibly arranged in different working environments while ensuring the stability of the device during operation.

[0028] The side of the enclosure 1 has an inspection window 15, the specific structure of which is as follows: Figure 5As shown, a sealing ring 16 is provided around the edge of the inspection window 15. The sealing ring 16 is made of silicone material and is 3mm thick, used to ensure the sealing performance of the inspection window 15 when closed. An illumination strip 17 is provided inside the inspection window 15. The illumination strip 17 is fixed to the inner wall of the housing 1 via a slot and connected to the control unit via a wire, used to assist operators in maintenance at night or in low light conditions. The inspection window 15 is connected to the housing 1 via a hinge and secured with a latch. After opening the inspection window 15, operators can inspect and maintain the interior of the housing 1 using the light provided by the illumination strip 17. The power supply of the illumination strip 17 is managed centrally by the control unit; it automatically lights up when the inspection window 15 is open and turns off when closed, thus saving energy.

[0029] The control unit is located at the rear of the inner cavity of housing 1, and its specific structure includes a circuit board, a display screen, and a backup battery. The circuit board is fixed to the rear of the inner cavity of housing 1 with bolts, and integrates a processor, memory, and communication module for processing data collected by the gas sensor and for data storage and transmission. The display screen is electrically connected to the circuit board via a ribbon cable and is fixed to the front of housing 1 in an easily observable position for displaying real-time gas monitoring data. The backup battery is installed below the circuit board and fixed to the bottom of housing 1 with clips, providing power to the control unit in the event of a power outage. The connections between the circuit board, display screen, and backup battery are achieved through a standard interface, facilitating replacement and maintenance while ensuring the stability and reliability of data transmission.

[0030] The operating principle of this utility model is as follows: After the dust-laden gas enters through the air inlet at the top of the housing 1, it first undergoes preliminary filtration through the multi-layer dustproof module 2. The first filter screen 3 blocks large dust particles, the second filter screen 4 captures fine particles, and the guide plate 5 removes any dust particles that are not completely intercepted from the housing 1. The filtered gas then enters the inner cavity of the housing 1. The gas sensor in the core detection component analyzes the gas composition and transmits the data to the control unit, which displays the monitoring results in real time on the screen. Cooling ducts and micro fans continuously cool the gas sensor, ensuring it operates at a suitable temperature. The detachable outer shell 6 is quickly assembled with the housing 1 via magnetic connection. Its sealing strip 9 and locking mechanism 10 ensure the airtightness of the housing 1, preventing external dust from entering. The sliding rails 12, rollers 13, and support feet 14 of the movable base 11 work together to allow the equipment to be flexibly arranged and remain stable in different environments. The design of the maintenance window 15 and the lighting strip 17 facilitates maintenance by operators when needed, thereby extending the service life of the equipment and improving monitoring accuracy.

[0031] To enable those skilled in the art to fully understand and implement this utility model, the following further explanation of the implementation principle of this utility model is provided in conjunction with specific application scenarios.

[0032] In the actual operation of industrial waste gas monitoring, the magnetic dustproof waste gas monitoring box is first placed in the target area. The box 1 is flexibly positioned via a movable base 11 at the bottom. Figure 4 As shown, the slide rail 12 and roller 13 work together to allow the device to move freely in the horizontal direction. When it is necessary to fix the device, the height is adjusted by rotating the threaded rod of the support foot 14 to ensure that the housing 1 is in a horizontal state. The presence of the limit block restricts the range of movement of the housing 1, preventing the device from shifting due to external forces, thereby ensuring the stability of the monitoring process.

[0033] Dust-laden gas enters through the air inlet at the top of housing 1 and undergoes preliminary filtration via multi-layer dustproof modules 2. For example... Figure 2 As shown, the first filter 3 is made of metal and has a microporous structure. Its main function is to block large dust particles. These dust particles usually originate from solid particles in industrial production, such as coal ash or metal powder. Since the first filter 3 is directly fixed to the air inlet at the top of the housing 1 and connected by bolts or welding, it can withstand high airflow impacts and is not easily loosened. The second filter 4 is made of electrostatic adsorption material and can capture suspended fine particles, especially particles with a diameter of less than 10 micrometers. This design utilizes the principle of electrostatic adsorption to enhance the interception capability of fine dust. The guide plate 5 is inclined and coated with a dust-repellent coating. Its function is to guide the dust that is not completely intercepted to be discharged along the inclined direction, avoiding dust accumulation in the filter module. Through the above multi-layer filtration mechanism, most of the dust in the dusty gas is removed, thereby significantly reducing the impact of dust on the core detection components.

[0034] The gas entering the inner cavity of chamber 1 is then analyzed by the core detection component. For example... Figure 1 As shown, multiple gas sensors on the sensor bracket are connected to the control unit via signal lines to collect gas composition data in real time. The design of the cooling duct and miniature fan effectively reduces the operating temperature of the gas sensors. The miniature fan is connected to the control unit via a power cord, continuously providing cooling airflow to the sensors to ensure they operate within a suitable temperature range. This design solves the problem of inaccurate monitoring data caused by high temperatures in traditional equipment, while optimizing the relative positions of the sensor bracket, cooling duct, and miniature fan to ensure smooth gas flow and avoid affecting monitoring accuracy due to localized overheating.

[0035] The detachable outer shell 6 is quickly assembled to the housing 1 via a magnetic connection, such as... Figure 3As shown, the permanent magnet 8 embedded in the inner wall of the protective cover 7 cooperates with the magnetic receiving plate on the outer wall of the housing 1, enabling rapid separation and assembly. The sealing strip 9 is made of flexible rubber material with a "U"-shaped cross-section, filling the gap between the protective cover 7 and the housing 1 to form a sealed space and prevent external dust from entering. The locking mechanism 10 further enhances the stability of the connection. The rotating handle is rotatably connected to the protective cover 7 via a shaft pin, and the buckle matches and locks with the groove at the bottom of the housing 1, ensuring that the equipment will not loosen due to vibration during operation. This design not only simplifies the maintenance process but also improves the sealing performance of the equipment, meeting the long-term use requirements in high-dust environments.

[0036] When the equipment requires maintenance, operators can inspect its interior through inspection window 15. For example... Figure 5 As shown, the sealing ring 16 at the edge of the inspection window 15 is made of silicone material with a thickness of 3mm to ensure a tight seal when closed. The lighting strip 17 is fixed to the inner wall of the housing 1 via a slot and automatically illuminates when the inspection window 15 is opened, providing ample light for operators. This design is particularly suitable for nighttime or low-light environments, improving maintenance efficiency. The control unit centrally manages the power supply to the lighting strip 17, and the lights automatically turn off when the inspection window 15 is closed, thus saving energy.

[0037] The control unit is located at the rear of the inner cavity of housing 1. The processor, memory, and communication module integrated on the circuit board process the data collected by the gas sensors and display the monitoring results in real time on the screen. A backup battery is installed below the circuit board and secured to the bottom of housing 1 with clips, providing power to the control unit in the event of a power outage. The connection between the circuit board, display screen, and backup battery is achieved through a standard interface, facilitating replacement and maintenance while ensuring the stability and reliability of data transmission.

[0038] In summary, this utility model achieves efficient monitoring of industrial waste gas through the synergistic effect of the multi-layer dustproof module 2, core detection components, detachable housing 6, movable base 11, inspection window 15, and lighting strip 17. This design not only effectively reduces the impact of dust on monitoring accuracy but also enhances the flexibility and ease of maintenance of the equipment through magnetic connection and the movable base 11, providing a more intelligent and efficient solution for industrial waste gas monitoring.

[0039] The above are merely preferred embodiments of this utility model. The scope of protection of this utility model is defined by the scope of the claims. Any improvements and modifications made by those skilled in the art without departing from the spirit and scope of this utility model should also be considered as protection within the scope of this utility model.

Claims

1. A magnetic dustproof exhaust gas monitoring box, characterized in that, include: A multi-layer dustproof module (2) is installed on the top of the housing (1) for preliminary filtration of the incoming gas; The core detection component for analyzing gas composition is located in the inner cavity of the housing (1); The detachable outer shell (6) is quickly assembled with the housing (1) by magnetic connection, and a sealed space is formed between the detachable outer shell (6) and the housing (1) to prevent external dust from entering.

2. The magnetic dustproof exhaust gas monitoring box as described in claim 1, characterized in that, The multi-layer dustproof module (2) includes: The first filter screen (3) is fixedly installed at the air inlet on the top of the box (1). The first filter screen (3) is made of metal and has a microporous structure. A second filter (4) is disposed below the first filter (3), and the second filter (4) is made of an electrostatic adsorption material; A guide plate (5) is installed at the bottom of the second filter (4), the guide plate (5) is inclined and its surface is coated with a dust-repellent coating.

3. The magnetic dustproof exhaust gas monitoring box as described in claim 1, characterized in that, The core detection components include: A sensor bracket is fixedly installed in the inner cavity of the housing (1), and multiple gas sensors are provided on the sensor bracket; A cooling duct is provided on one side of the sensor bracket, with one end of the cooling duct connected to the outside air and the other end extending to the vicinity of the sensor bracket. A miniature fan is installed at the outlet of the cooling duct, and the miniature fan is fixed to the inner wall of the cooling duct by bolts.

4. The magnetic dustproof exhaust gas monitoring box as described in claim 1, characterized in that, The removable housing (6) includes: A protective cover (7) covers the outside of the box (1). The inner wall of the protective cover (7) is embedded with a plurality of permanent magnets (8). The permanent magnets (8) cooperate with the magnetic receiving plates on the outer wall of the box (1). A sealing strip (9) is provided around the protective cover (7), the sealing strip (9) is made of flexible rubber material and has a "U" shaped cross section; A locking mechanism (10) is fixedly installed at the bottom of the protective cover (7), the locking mechanism (10) including a rotating handle and a buckle.

5. The magnetic dustproof exhaust gas monitoring box as described in claim 1, characterized in that, The bottom of the housing (1) is provided with a movable base (11), the movable base (11) comprising: A slide rail (12) is fixedly installed at the bottom of the box (1), and limit blocks are respectively provided at both ends of the slide rail (12); A roller (13) is mounted on the slide rail (12), and the roller (13) is movably connected to the slide rail (12) via a bearing; A support foot (14) is provided behind the roller (13), and the support foot (14) is connected to the bottom of the box (1) by a threaded rod.

6. The magnetic dustproof exhaust gas monitoring box as described in claim 1, characterized in that, The side of the housing (1) is provided with an inspection window (15), and the edge of the inspection window (15) is provided with a sealing ring (16). The sealing ring (16) is made of silicone material and has a thickness of 3 mm; An illumination strip (17) is provided on the inner side of the inspection window (15), and the illumination strip (17) is fixed to the inner wall of the box (1) by a slot.

7. The magnetic dustproof exhaust gas monitoring box as described in claim 1, characterized in that, It also includes a control unit, which includes: A circuit board is fixedly installed on the rear side of the inner cavity of the housing (1), and the circuit board integrates a processor, a memory and a communication module; A display screen is mounted in front of the circuit board, and the display screen is electrically connected to the circuit board via a ribbon cable; A backup battery is installed below the circuit board and is fixed to the bottom of the housing (1) by a clip.

8. The magnetic dustproof exhaust gas monitoring box as described in claim 2, characterized in that, The guide plate (5) is fixed to the inner wall of the box (1) by screws and is spaced apart from the second filter screen (4). The spacing is used to ensure smooth gas flow.

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