Air monitoring device

Abstract

The utility model relates to an air monitoring device, and relates to the technical field of air monitoring, and the air monitoring device comprises a closed housing; the plurality of gas channels are arranged on the closed shell, and inlets of the gas channels are communicated with the outside; the gas particle filter membrane is arranged in the gas channel; the valve is arranged in the gas channel and is positioned between the gas particle filter membrane and the inlet; and in a time period, one valve is opened.

Description

Technical Field

[0001] This application belongs to the field of air monitoring technology, and specifically relates to an air monitoring device. Background Technology

[0002] The working principle of a gas particulate filter membrane is mainly to filter and trap particulate matter in the air. Specifically, when air passes through the filter membrane, particulate matter is captured by the membrane, while the air can pass through. By analyzing and measuring the particulate matter trapped on the filter membrane, information such as the concentration and particle size distribution of particulate matter in the air can be obtained.

[0003] In community air quality monitoring systems, gas particulate filters are typically used in conjunction with other equipment, such as samplers and mass sensors. The sampler draws in air and passes it through the filter, while the mass sensor measures the mass of particulate matter trapped on the filter. Based on the correlation between mass and frequency, a microprocessor can calculate the total mass, mass flow rate, and mass concentration of particulate matter accumulated on the filter in real time.

[0004] However, air quality varies at different times, and the monitoring effect will be poor if the same filter membrane is used for monitoring. Utility Model Content

[0005] In view of the above analysis, the present invention aims to provide an air monitoring device to solve one or more of the above-mentioned problems existing in the prior art.

[0006] The objective of this invention is achieved as follows:

[0007] An air monitoring device, comprising

[0008] Enclosed casing;

[0009] Multiple gas channels are provided on the enclosed housing, and the inlet of each gas channel is connected to the outside.

[0010] A gas particle filter membrane is disposed in the gas channel;

[0011] A valve is provided in the gas passage and located between the gas particulate filter membrane and the inlet;

[0012] During a certain period of time, one of the valves is opened.

[0013] The air monitoring device provided in this application includes an air intake pipe, which is inserted into the closed housing and located inside the closed housing. The air intake pipe is connected to the external environment, and an air outlet is provided on the side wall of the closed housing. The air intake pipe, the inner cavity of the closed housing and the air outlet constitute the gas channel.

[0014] In the air monitoring device provided in this application, the valve includes a sealing door, a drive motor, and a toothed plate. The sealing door is inserted into the air intake pipe from the top wall and blocks the air intake pipe. The drive motor is connected to the air intake pipe. The toothed plate is arranged parallel to the sealing door and is inserted into the air intake pipe from the top wall. The drive motor and the toothed plate are connected by a gear drive. The toothed plate is connected to the top of the sealing door by a connector.

[0015] The air monitoring device provided in this application also includes a mounting plate, which is inserted from the side wall of the closed housing into another side wall inside the closed housing. The side wall of the mounting plate has a mounting groove, and a frame is slidably connected in the mounting groove. The frame has a plurality of membrane openings arranged at intervals and horizontally placed. The gas particle filter membrane is installed in the membrane opening. The mounting plate is connected to the end face of the air inlet pipe located inside the closed housing, and the mounting plate has a plurality of ports corresponding to the air inlet pipe. The membrane opening, the ports, and the air inlet channel are connected.

[0016] In the air monitoring device provided in this application, the inner wall of the membrane opening is connected to a support plate extending along its inner edge toward the center of the membrane opening, and the edge of the gas particle filter membrane is exactly in contact with the support plate.

[0017] In the air monitoring device provided in this application, adhesive strips are connected to the four corners of the gas particle filter membrane.

[0018] The air monitoring device provided in this application also includes a partition, which is disposed inside the enclosed housing and connected to the mounting plate, for enclosing the space above the mounting plate, so that the enclosed housing forms a front space and a rear space, and the outlet space of the air intake pipe.

[0019] The air monitoring device provided in this application also includes an air outlet pipe, which is connected to the inner wall of the enclosed housing and located at a position covering the air outlet. A blower is provided inside the air outlet pipe.

[0020] In the air monitoring device provided in this application, the bottom of the air outlet pipe is provided with an open end away from the air outlet.

[0021] In the air monitoring device provided in this application, the air intake pipe includes three pipes. Each air intake pipe is separated from the corresponding space by a diverter plate, so that the gas entering the air intake pipe passes through the diverter plate and enters the air outlet pipe.

[0022] Compared with the prior art, the present invention can achieve at least the following beneficial effects:

[0023] During a given period, only one valve is open, while the others remain closed. This unique design allows air to enter the device through different gas channels at different times for monitoring. This structure avoids many problems associated with always using the same filter membrane for monitoring.

[0024] Firstly, it can effectively prevent filter membrane clogging or loss caused by prolonged use of a single filter membrane, thereby ensuring that the filter membrane is in optimal working condition during each monitoring, maintaining efficient filtration and capture capabilities, and improving the accuracy of monitoring data.

[0025] For example, in long-term continuous monitoring, if the same filter membrane is used continuously, more and more particulate matter will accumulate on the membrane over time, which may affect the passage of subsequent air and lead to inaccurate monitoring results. This device avoids this situation.

[0026] Secondly, because different filter membranes are used for monitoring at different times, the interference and cross-contamination between air samples from different times are avoided, which can more accurately reflect the true air quality at each time period.

[0027] For example, if a high concentration of pollutants is detected during a certain period, using the same filter membrane to continue monitoring the next period may result in residual pollutants affecting subsequent results. However, this device can eliminate such interference.

[0028] Third, this method of independent monitoring in different time periods can more clearly compare changes in air quality at different times, providing more reliable data support for analyzing the patterns and trends of air quality.

[0029] For example, air quality may vary significantly at different times of the day, and this device can accurately capture these changes, which helps to develop more targeted environmental protection and governance measures.

[0030] In conclusion, this unique structural design greatly improves the effectiveness and reliability of air monitoring, providing strong technical support for ensuring community air quality and residents' health. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings.

[0032] Figure 1Schematic diagram of the air monitoring device provided by the present invention Figure 1 ;

[0033] Figure 2 Schematic diagram of the air monitoring device provided by the present invention Figure 2 ;

[0034] Figure 3 Schematic diagram of the air monitoring device provided by the present invention Figure 3 ;

[0035] Figure 4 Schematic diagram of the air monitoring device provided by the present invention Figure 4 .

[0036] Figure label:

[0037] 10. Enclosed housing; 20. Gas particle filter membrane;

[0038] 30. Valve; 301. Sealing door; 302. Drive motor; 303. Gear plate; 304. Connecting parts;

[0039] 40. Intake pipe; 41. Exit port; 50. Mounting plate; 51. Frame;

[0040] 60. Partition; 70. Air outlet pipe; 701. Opening; 80. Diverter plate. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. It should be noted that, unless otherwise specified, the implementation methods and features in the implementation methods in this disclosure can be combined, separated, interchanged, and / or rearranged. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] In the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0043] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0044] A specific embodiment of the present invention, such as Figure 1-4 As shown, an air monitoring device is disclosed, comprising: a sealed housing 10; multiple gas channels disposed on the sealed housing 10, wherein the inlet of each gas channel is connected to the outside; a gas particulate filter membrane 20 disposed in the gas channel; and a valve 30 disposed in the gas channel and located between the gas particulate filter membrane 20 and the inlet; wherein, during a time period, one of the valves 30 is open and the other valves 30 are closed.

[0045] During a given period, only one valve 30 is open, while the others remain closed. This unique design allows air to enter the device through different gas channels at different times for monitoring. This structure avoids many problems associated with consistently using the same filter membrane for monitoring.

[0046] Firstly, it can effectively prevent filter membrane clogging or loss caused by prolonged use of a single filter membrane, thereby ensuring that the filter membrane is in optimal working condition during each monitoring, maintaining efficient filtration and capture capabilities, and improving the accuracy of monitoring data.

[0047] For example, in long-term continuous monitoring, if the same filter membrane is used continuously, more and more particulate matter will accumulate on the membrane over time, which may affect the passage of subsequent air and lead to inaccurate monitoring results. This device avoids this situation.

[0048] Secondly, because different filter membranes are used for monitoring at different times, the interference and cross-contamination between air samples from different times are avoided, which can more accurately reflect the true air quality at each time period.

[0049] In some embodiments, an air intake pipe 40 is further included, which is inserted into the closed housing 10 and is located inside the closed housing 10. The air intake pipe 40 is in communication with the external environment, and an air outlet 41 is provided on the side wall of the closed housing 10. The air intake pipe 40, the inner cavity of the closed housing 10 and the air outlet 41 constitute the gas passage.

[0050] This setup avoids air interference.

[0051] In some embodiments, the valve 30 includes a sealing door 301, a drive motor 302, and a toothed plate 303. The sealing door 301 is inserted into the air intake pipe 40 from the top wall and blocks the air intake pipe 40. The drive motor 302 is connected to the air intake pipe 40. The toothed plate 303 is arranged parallel to the sealing door 301 and is inserted into the air intake pipe 40 from the top wall. The drive motor 302 and the toothed plate 303 are connected by a gear drive. The toothed plate 303 is connected to the top of the sealing door 301 by a connector 304.

[0052] The start and stop of the drive motor 302 can be controlled by a timer, or the start of the drive motor 302 can be controlled manually. When the drive motor 302 is started, it can drive the toothed plate 303 and the sealing door 301 to move up or down, thereby opening and closing the air intake pipe 40.

[0053] In some embodiments, the device further includes a mounting plate 50, which is inserted from one side wall of the enclosed housing 10 into another side wall inside the enclosed housing 10. The side wall of the mounting plate 50 has a mounting groove, and a frame 51 is slidably connected in the mounting groove. The frame 51 has a plurality of membrane openings arranged at intervals and horizontally positioned. The gas particulate filter membrane 20 is installed in the membrane openings. The mounting plate 50 is connected to the end face of the air inlet pipe 40 located inside the enclosed housing 10, and the mounting plate 50 has a plurality of through-holes corresponding to the air inlet pipe 40. The membrane openings, the through-holes, and the air inlet channel are interconnected.

[0054] The frame 51 can be inserted into the mounting slot to enable quick replacement of the gas particulate filter membrane 20.

[0055] In some embodiments, the inner wall of the membrane opening is connected to a support extending along its inner edge toward the center of the membrane opening, and the edge of the gas particle filter membrane 20 is exactly in contact with the support.

[0056] When installing the gas particulate filter membrane 20, attaching it to the support plate can prevent it from falling off.

[0057] The gas particle filter membrane 20 is connected to the four corners with adhesive strips.

[0058] It also includes a partition 60, which is disposed inside the enclosed housing 10 and connected to the mounting plate 50, for enclosing the space above the mounting plate 50, so that the enclosed housing 10 forms a front space and a rear space, and the rear space of the air intake pipe 40 outlet.

[0059] It also includes an exhaust pipe 70, which is connected to the inner wall of the enclosed housing 10 and located in a position covering the area of ​​the exhaust port 41. A blower is provided inside the exhaust pipe 70.

[0060] This configuration ensures that the airflow between the various air intake ducts 40 does not interfere with each other.

[0061] The bottom of the air outlet pipe 70 is provided with an opening 701 at the end away from the air outlet 41. The opening 701 allows the gas from the air inlet pipe 40 below the air outlet pipe 70 to also smoothly enter the air outlet pipe 70.

[0062] The air intake pipes 40 include three, and each air intake pipe 40 is separated from the corresponding space by a diverter plate 80, so that the gas entering the air intake pipe 40 passes through the diverter plate 80 and enters the air outlet pipe 70. The diverter plate 80 is provided to prevent the air in each air intake pipe 40 from interfering with each other.

[0063] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this application. It should be understood that the above are only specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An air monitoring device, characterized in that, include Enclosed casing; Multiple gas channels are provided on the enclosed housing, and the inlet of each gas channel is connected to the outside. A gas particle filter membrane is disposed in the gas channel; A valve is provided in the gas passage and located between the gas particulate filter membrane and the inlet; During a certain period of time, one of the valves is opened.

2. The air monitoring device according to claim 1, characterized in that, It includes an air intake pipe, which is inserted into the closed housing and located inside the closed housing. The air intake pipe is connected to the external environment. An air outlet is provided on the side wall of the closed housing. The air intake pipe, the inner cavity of the closed housing and the air outlet constitute the gas channel.

3. The air monitoring device according to claim 2, characterized in that, The valve includes a sealing door, a drive motor, and a toothed plate. The sealing door is inserted into the air intake pipe from the top wall and blocks the air intake pipe. The drive motor is connected to the air intake pipe. The toothed plate is arranged parallel to the sealing door and is inserted into the air intake pipe from the top wall. The drive motor and the toothed plate are connected by a gear drive. The toothed plate is connected to the top of the sealing door by a connector.

4. The air monitoring device according to claim 2, characterized in that, It also includes a mounting plate, which is inserted from the side wall of the enclosed housing into another side wall inside the enclosed housing. The side wall of the mounting plate has a mounting groove, and a frame is slidably connected in the mounting groove. The frame has multiple membrane ports arranged at intervals and horizontally. The gas particle filter membrane is installed in the membrane ports. The mounting plate is connected to the end face of the air inlet pipe located inside the enclosed housing, and the mounting plate has multiple openings corresponding to the air inlet pipe. The membrane ports, the openings, and the air inlet pipe are connected.

5. The air monitoring device according to claim 4, characterized in that, The inner wall of the membrane opening is connected to a support plate extending along its inner edge toward the center of the membrane opening, and the edge of the gas particle filter membrane is exactly in contact with the support plate.

6. The air monitoring device according to claim 5, characterized in that, The gas particle filter membrane is connected to the four corners with adhesive strips.

7. The air monitoring device according to claim 4, characterized in that, It also includes a partition, which is disposed inside the enclosed housing and connected to the mounting plate, for enclosing the space above the mounting plate, so that the enclosed housing forms a front space and a rear space, and the rear space of the air intake pipe outlet.

8. The air monitoring device according to claim 7, characterized in that, It also includes an exhaust pipe, which is connected to the inner wall of the enclosed housing and located in a position covering the area of ​​the exhaust port, and a blower is provided inside the exhaust pipe.

9. The air monitoring device according to claim 8, characterized in that, The bottom of the air outlet pipe has an open end away from the air outlet.

10. The air monitoring device according to claim 9, characterized in that, The air intake pipe includes three pipes. Each air intake pipe is separated from the corresponding space by a diverter plate, so that the gas entering the air intake pipe passes through the diverter plate and enters the air outlet pipe.

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