Flue gas fine particulate matter concentration detection device

Abstract

The utility model provides a flue gas fine particulate matter concentration detection device, and belongs to the field of flue gas detection, in order to solve the problem that a filter screen is inconvenient to disassemble and assemble conveniently, the flue gas fine particulate matter concentration detection device comprises a protective shell, an air pump is fixedly connected to the protective shell, a connecting shaft is rotatably connected with a connecting box, and a gear is in meshed connection with a rack. A limiting block is fixedly connected to the rack, the limiting block is connected into the connecting box in a limiting and sliding mode, a connecting plate is fixedly connected to the rack, and a supporting plate is arranged at the bottom of the connecting box. The device is provided with a cover plate; when the cover plate and the internal filter plate are detached, extrusion plates on the two sides of a limiting frame can be extruded, the extrusion plates can drive the limiting plate to extrude a spring, meanwhile, the limiting plate takes out a clamping block from a protective shell and the cover plate and retracts the clamping block into a fixed box, and the unobstructed limiting frame can be taken out from the protective shell and the cover plate to be detached; and the cover plate and the filter plate can be detached to clean or replace filtered materials.

Description

Technical Field

[0001] This utility model relates to the field of flue gas detection, and more specifically, to a device for detecting the concentration of fine particulate matter in flue gas. Background Technology

[0002] Particulate matter concentration detection in flue gas is the process of monitoring and analyzing the concentration of particulate matter (such as PM2.5, PM10, and soot) in flue gas emissions from industrial or environmental sources. Particulate matter pollution is a significant component of air pollution, directly impacting air quality, environmental health, and human health. Therefore, detecting particulate matter concentration in flue gas is crucial. Effective monitoring and control of particulate matter pollution in flue gas helps protect the environment and human health.

[0003] Currently, most flue gas fine particulate matter concentration detection devices have the following problems:

[0004] For example, a flue gas particulate matter concentration detection and sampling device with publication number 202221953595.9 can shake off particulate matter by swaying the filter screen from side to side. However, the filter screen is prone to deformation or damage after prolonged movement, which can affect the subsequent filtration and collection of particulate matter. In addition, the filter screen is fixed in the device, making it difficult to disassemble and replace if needed, and it is inconvenient to easily remove and install the filter screen. At the same time, the device is supported by legs and a base, but the device is at a fixed height. If the flue gas pipeline is installed in a different position, the device needs to be raised for connection and use, resulting in poor stability and effect, and it is inconvenient to easily adjust the height of the device.

[0005] Therefore, we have made improvements to this and proposed a device for detecting the concentration of fine particulate matter in flue gas. Utility Model Content

[0006] The purpose of this utility model is to address the current problems of inconvenience in easily disassembling and installing filter screens, and inconvenience in easily adjusting the height of the equipment.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A device for detecting the concentration of fine particulate matter in flue gas is proposed to improve the above-mentioned problems.

[0009] The application is as follows:

[0010] The device includes a protective housing, an air pump fixedly connected to the protective housing, an air inlet pipe fixedly connected to the protective housing, a gas flow meter installed on the air inlet pipe, a cover plate on the protective housing, a sealing gasket fixedly connected inside the cover plate, a filter plate fixedly connected to the cover plate, a limit frame on the protective housing and the cover plate, a fixed box fixedly connected inside the limit frame, a spring fixedly connected inside the fixed box, a limit plate fixedly connected to the other end of the spring, a locking block fixedly connected to the limit plate, a pressing plate fixedly connected to the limit plate, a self-locking double-headed motor fixedly connected to the protective housing, a connecting shaft fixedly connected to the output shaft of the self-locking double-headed motor, a connecting box rotatably connected to the connecting shaft, a gear fixedly connected to the connecting shaft, a rack meshing with the gear, a limit block fixedly connected to the rack, a limit block slidingly connected to the connecting box, a connecting plate fixedly connected to the rack, and a support plate at the bottom of the connecting box.

[0011] As a preferred technical solution of this application, the inner side of the cover plate is fitted with the outer side of the protective shell, and the outer side of the filter plate is fitted with the inner side of the protective shell.

[0012] As a preferred technical solution of this application, the springs are symmetrically distributed on the upper and lower sides of the fixed box, and the springs correspond one-to-one with the locking blocks through the limiting plates.

[0013] As a preferred technical solution of this application, the connecting shaft is fixedly connected to the center of the gear, and the gear and the rack are in the same vertical line.

[0014] As a preferred technical solution of this application, the racks are centrally symmetrically distributed on the left and right sides of the gear, and the racks correspond one-to-one with the connecting plates through limiting blocks.

[0015] As a preferred technical solution of this application, the connecting plate is fixedly connected to the protective shell and the support plate, a limiting rod is fixedly connected to the connecting plate, the limiting rod is slidably connected to the connecting box, and the limiting block has a "T" shaped cross-section.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In the scheme of this application:

[0018] 1. Equipped with a cover plate; when disassembling the cover plate and the internal filter plate, the compression plates on both sides of the limiting frame can be squeezed. The compression plates can drive the limiting plate to squeeze the spring. At the same time, the limiting plate removes the locking block from the protective shell and the cover plate and retracts it into the fixed box. The unobstructed limiting frame can be removed from the protective shell and the cover plate for disassembly, allowing the cover plate and filter plate to be disassembled for cleaning or replacement of the filtered material.

[0019] 2. A connecting box is provided; when the height of the equipment needs to be adjusted for adaptation, a self-locking double-head motor can drive the connecting shaft to rotate. The rotation of the gear on the connecting shaft can push the rack to move. When the rack moves, it moves smoothly through the guidance of the limit block. The rack pushes the connecting plate to move. The connecting plate moves smoothly with the support of the limit rod. The upper and lower connecting plates can adjust the distance between the protective shell and the support plate to adjust the height. Attached Figure Description

[0020] Figure 1 A three-dimensional structural diagram of the flue gas fine particulate matter concentration detection device provided in this application;

[0021] Figure 2 A three-dimensional structural diagram of the limiting frame of the flue gas fine particulate matter concentration detection device provided in this application;

[0022] Figure 3 A three-dimensional structural diagram of the limiting block of the flue gas fine particulate matter concentration detection device provided in this application;

[0023] Figure 4 A side view of the protective housing structure of the flue gas fine particulate matter concentration detection device provided in this application;

[0024] Figure 5 A side view of the cover plate structure of the flue gas fine particulate matter concentration detection device provided in this application;

[0025] Figure 6 The flue gas fine particulate matter concentration detection device provided in this application Figure 5 Enlarged structural diagram at point A in the middle;

[0026] Figure 7 A side view of the connection box structure of the flue gas fine particulate matter concentration detection device provided in this application;

[0027] Figure 8 This is a top view of the rack structure of the flue gas fine particulate matter concentration detection device provided in this application.

[0028] The diagram shows: 1. Protective housing; 2. Air pump; 3. Air inlet pipe; 4. Gas flow meter; 5. Cover plate; 6. Sealing gasket; 7. Filter plate; 8. Limiting frame; 9. Fixing box; 10. Spring; 11. Limiting plate; 12. Locking block; 13. Pressing plate; 14. Self-locking double-headed motor; 15. Connecting shaft; 16. Gear; 17. Rack; 18. Limiting block; 19. Connecting plate; 20. Limiting rod; 21. Support plate; 22. Connecting box. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0030] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Example 1:

[0035] like Figure 1-8As shown, this embodiment proposes a flue gas fine particulate matter concentration detection device, including a protective shell 1, an air pump 2 fixedly connected to the protective shell 1, an air inlet pipe 3 fixedly connected to the protective shell 1, a gas flow meter 4 installed on the air inlet pipe 3, a cover plate 5 provided on the protective shell 1, a sealing gasket 6 fixedly connected inside the cover plate 5, a filter plate 7 fixedly connected to the cover plate 5, a limit frame 8 provided on the protective shell 1 and the cover plate 5, a fixing box 9 fixedly connected inside the limit frame 8, a spring 10 fixedly connected inside the fixing box 9, and a limit plate 11 fixedly connected to the other end of the spring 10. A locking block 12 is fixedly connected to the limiting plate 11. A pressing plate 13 is fixedly connected to the limiting plate 11. A self-locking double-head motor 14 is fixedly connected to the protective shell 1. A connecting shaft 15 is fixedly connected to the output shaft of the self-locking double-head motor 14. A connecting box 22 is rotatably connected to the connecting shaft 15. A gear 16 is fixedly connected to the connecting shaft 15. A rack 17 is meshed with the gear 16. A limiting block 18 is fixedly connected to the rack 17. The limiting block 18 is slidably connected to the connecting box 22. A connecting plate 19 is fixedly connected to the rack 17. A support plate 21 is provided at the bottom of the connecting box 22.

[0036] Example 2:

[0037] The solution in Example 1 will be further described below with reference to its specific working method.

[0038] like Figure 5 As shown, in a preferred embodiment, based on the above method, the inner side of the cover plate 5 is attached to the outer side of the protective shell 1, and the outer side of the filter plate 7 is attached to the inner side of the protective shell 1, which can ensure that the cover plate 5 is attached to the protective shell 1 to achieve the effect of sealing and protection.

[0039] like Figure 6 As shown, in a preferred embodiment, based on the above method, the springs 10 are symmetrically distributed on the upper and lower sides of the fixed box 9. The springs 10 correspond one-to-one with the locking blocks 12 through the limiting plate 11, which can ensure that the locking blocks 12 on the upper and lower sides can be locked onto the protective shell 1 and the cover plate 5 for fixed positioning.

[0040] like Figure 8 As shown, in a preferred embodiment, based on the above method, the connecting shaft 15 is further fixedly connected to the center of the gear 16, and the gear 16 and the rack 17 are in the same vertical line, which can ensure that the gear 16 can smoothly push the rack 17 to move when it rotates.

[0041] like Figure 7As shown, in a preferred embodiment, based on the above method, the rack 17 is further distributed symmetrically on the left and right sides of the gear 16. The rack 17 corresponds one-to-one with the connecting plate 19 through the limiting block 18, which can ensure that the connecting plates 19 on both sides can move outward at the same time to adjust the distance between the protective shell 1 and the support plate 21, and adjust the height or position of use.

[0042] like Figure 8 As shown, in a preferred embodiment, based on the above method, the connecting plate 19 is further fixedly connected to the protective shell 1 and the support plate 21, and the limiting rod 20 is fixedly connected to the connecting plate 19. The limiting rod 20 is slidably connected to the connecting box 22, and the limiting block 18 has a "T" shaped cross section, which can ensure that the "T" shaped limiting block 18 can slide within the connecting box 22.

[0043] Specifically, when using this flue gas fine particulate matter concentration detection device: (in conjunction with...) Figure 1-8 When disassembling the cover plate 5 and the internal filter plate 7, the squeezing plates 13 on both sides of the limiting frame 8 can be squeezed. The squeezing plates 13 can drive the limiting plate 11 to squeeze the spring 10. At the same time, the limiting plate 11 removes the locking block 12 from the protective shell 1 and the cover plate 5 and returns it to the fixing box 9. The unobstructed limiting frame 8 can be removed from the protective shell 1 and the cover plate 5 for disassembly. The cover plate 5 and the filter plate 7 can be disassembled to clean the filter material or replace it. When reinstalling, the sealing gasket 6 on the cover plate 5 is pressed against the protective shell 1 to seal and prevent leakage. The fixing box 9 on the limiting frame 8 is inserted into the protective shell 1 and the cover plate 5. The squeezing plates 13 are released. Under the push of the spring 10, the limiting plate 11 and the locking block 12 are reset. The locking block 12 is locked in the protective shell 1 and the cover plate 5, which can play a fixed limiting role and improve the disassembly and installation effect.

[0044] When the height of the equipment needs to be adjusted for adaptation, the self-locking double-head motor 14 drives the connecting shaft 15 to rotate. The gear 16 on the connecting shaft 15 rotates and pushes the rack 17 to move. When the rack 17 moves, it is guided by the sliding guide of the limit block 18 in the connecting box 22, which drives the rack 17 to move smoothly. The rack 17 pushes the connecting plate 19 to move. The connecting plate 19 moves smoothly with the support of the limit rod 20. The upper and lower connecting plates 19 can adjust the distance between the protective shell 1 and the support plate 21 to adjust the height for easy adaptation to different situations. The support plate 21 is installed on the wall with bolts or supported on the ground. The external flue gas pipe is connected, the air pump 2 is turned on, and the gas is drawn and transported through the air inlet pipe 3. The air intake is monitored by the gas flow meter 4. The filter plate 7 filters the transported gas and collects the particulate matter in the flue gas. After the gas supply is stopped, the filter plate 7 is removed to collect the particulate matter, and the concentration of particulate matter in the gas supply can be detected.

[0045] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, as well as all technical solutions and improvements that do not depart from the spirit and scope of practicality, are covered within the scope of the claims of the present utility model.

Claims

1. A device for detecting the concentration of fine particulate matter in flue gas, comprising a protective casing (1), characterized in that, The protective shell (1) is fixedly connected with an air pump (2), the protective shell (1) is fixedly connected with an air inlet pipe (3), the air inlet pipe (3) is provided with a gas flowmeter (4), the protective shell (1) is provided with a cover plate (5), the cover plate (5) is fixedly connected with a sealing gasket (6), the cover plate (5) is fixedly connected with a filter plate (7), the protective shell (1) and the cover plate (5) are provided with a limiting frame (8), the limiting frame (8) is fixedly connected with a fixed box (9), the fixed box (9) is fixedly connected with a spring (10), the other end of the spring (10) is fixedly connected with a limiting plate (11), the limiting plate (11) is fixedly connected with a clamping block (12), the limiting plate (11) is fixedly connected with an extrusion plate (13), the protective shell (1) is fixedly connected with a self-locking double-head motor (14), the output shaft of the self-locking double-head motor (14) is fixedly connected with a connecting shaft (15), the connecting shaft (15) is rotatably connected with a connecting box (22), the connecting shaft (15) is fixedly connected with a gear (16), the gear (16) is meshedly connected with a rack (17), the rack (17) is fixedly connected with a limiting block (18), the limiting block (18) is limitingly and slidably connected in the connecting box (22), the rack (17) is fixedly connected with a connecting plate (19), and the bottom of the connecting box (22) is provided with a supporting plate (21).

2. The flue gas fine particle concentration detection device according to claim 1, characterized by, The inner side of the cover plate (5) is attached to the outer side of the protective shell (1), and the outer side of the filter plate (7) is attached to the inner side of the protective shell (1).

3. The flue gas fine particle concentration detection device according to claim 1, characterized by, The springs (10) are symmetrically distributed on the upper and lower sides of the fixed box (9), and the springs (10) are one-to-one corresponding through the limiting plate (11) and the clamping block (12).

4. The flue gas fine particle concentration detection device according to claim 1, characterized by, The connecting shaft (15) is fixedly connected at the center of the gear (16), and the gear (16) and the rack (17) are in the same vertical line.

5. The flue gas fine particle concentration detection device according to claim 1, characterized by, The rack (17) is centrally and symmetrically distributed on the left and right sides of the gear (16), and the rack (17) is one-to-one corresponding through the limiting block (18) and the connecting plate (19).

6. The flue gas fine particle concentration detection device according to claim 1, characterized by, The connecting plate (19) is fixedly connected on the protective shell (1) and the supporting plate (21), the limiting rod (20) is fixedly connected on the connecting plate (19), the limiting rod (20) is limitingly and slidably connected in the connecting box (22), and the limiting block (18) is in the shape of "T".

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