Industrial flue gas emission online monitoring pretreatment device

Abstract

The utility model relates to the technical field of flue gas emission on-line monitoring treatment, in particular to an industrial flue gas emission on-line monitoring pretreatment device which comprises a flue gas cylinder, a monitoring pretreatment structure is arranged at one end of the flue gas cylinder and comprises an outer frame, notches are formed in the upper side and the lower side of the outer frame, and connecting frames are arranged in the notches. A clamping buckle is fixed to the lower side of the outer frame, a clamping rod is rotationally arranged on the lower side of the connecting frame and located in the clamping buckle, two windows are formed in the side face of the connecting frame, sealing baffles are transversely fixed to the top, the bottom and the middle of the connecting frame, and filter plate structures are fixed to the windows through screws. And a sensor is in threaded sealing connection in the threaded hole. The utility model solves the problems that the monitoring function is neglected in the existing flue gas emission monitoring pretreatment device, the whole flue gas pipeline needs to be stopped in advance during cleaning, and dirt is easy to remain in the pipeline after cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of on-line monitoring and processing of flue gas emissions, in particular to an on-line monitoring and preprocessing device for industrial flue gas emissions. Background Art

[0002] Industrial flue gas refers to the general term for various pollutant gases discharged into the air during fuel combustion and production processes within the factory area of ​​an enterprise;

[0003] The Chinese utility model patent application number CN202222335209.6 discloses an industrial flue gas emission online monitoring pretreatment device, which comprises a flue gas emission pipe, two extension blocks, each fixedly connected to one side outer wall of the flue gas emission pipe, the two extension blocks being arranged in an upper and lower direction, a pretreatment filter screen fixedly connected to the inner wall of the flue gas emission pipe, and a scrubbing structure provided on both sides of the outer wall of the flue gas emission pipe;

[0004] It can be seen from this device that the filter can be cleaned very well through the brush structure, but the monitoring function is not emphasized. In addition, the flue gas pipe system needs to be stopped before cleaning, and the dirt after cleaning is likely to remain inside the pipe, which makes it less practical. Utility Model Content

[0005] The technical problem to be solved by the present invention is that the existing flue gas emission monitoring and pretreatment device neglects the monitoring function, and when cleaning, the entire flue gas pipeline needs to be shut down in advance, and the dirty objects after cleaning are likely to remain inside the pipeline.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is an online monitoring and pretreatment device for industrial flue gas emissions, including a flue gas chimney, one end of the flue gas chimney is connected to a monitoring and pretreatment structure by bolts, the monitoring and pretreatment structure includes an outer frame, a plurality of slots are provided on the upper and lower sides of the outer frame, a connecting frame is provided in the slot, a snap buckle is fixed on both sides of the slot on the lower side of the outer frame, a snap rod is rotatably provided in the snap buckle on the lower side of the connecting frame, two windows are provided on the side of the connecting frame, sealing baffles are horizontally fixed on the top, bottom and middle of the connecting frame, a filter plate structure is fixed at the window by screws, two threaded holes are provided at both ends of one side of the outer frame, and sensors are threadedly connected to the threaded holes.

[0007] As a further solution of the present invention: the upper and lower edges of the inner side of the slot are both provided with a forty-five degree chamfer, the lower edge of the sealing baffle located at the top of the connecting frame is provided with a forty-five degree chamfer to facilitate a close fit with the upper edge of the slot at the top, the upper edge of the sealing baffle located at the bottom of the connecting frame is provided with a forty-five degree chamfer to facilitate a close fit with the lower edge of the slot at the bottom, and the upper and lower edges of the sealing baffle located in the middle of the connecting frame are both provided with a forty-five degree chamfer to facilitate a close fit with the lower and upper edges of the top and bottom slots.

[0008] As a further solution of the present invention, the connecting frame slides up and down in the slot to facilitate timely replacement of the filter plate structure.

[0009] As a further solution of the present invention: there are three slots in total, which can achieve a highly efficient filtering effect.

[0010] As a further solution of the present invention, the window area is smaller than the inner cross-sectional area of ​​the outer frame to facilitate filtering of smoke.

[0011] As a further solution of the present invention: the sensor is electrically connected to an external power supply for real-time monitoring of the smoke concentration.

[0012] Compared with the prior art, the advantages of this utility model are as follows: this patent has sensors installed at both ends of the monitoring pre-treatment structure for real-time monitoring of the flue gas before and after treatment, and adds a sliding connecting frame. The filter plate structure is fixed to the side of the connecting frame by screws, and the filter plate structure can be replaced without stopping the machine, and no dirt will remain inside the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 This is the overall structure of the utility model of an industrial flue gas emission online monitoring pretreatment device Figure 1 .

[0015] Figure 2 This is the overall structure of the utility model of an industrial flue gas emission online monitoring pretreatment device Figure 2 .

[0016] Figure 3 This is a cross-sectional view of the overall structure of an industrial flue gas emission online monitoring and pretreatment device of the present utility model.

[0017] Figure 4This is an enlarged view of the structure of part A in an online monitoring and pretreatment device for industrial flue gas emissions of the utility model.

[0018] Figure 5 This is an enlarged view of the structure of part B in an online monitoring and pretreatment device for industrial flue gas emissions of the utility model.

[0019] In the attached figure:

[0020] 1. Flue gas pipe; 2. Outer frame; 3. Connecting frame; 4. Snap-on buckle; 5. Snap-on rod; 6. Filter plate structure; 7. Sensor; 2.1. Notch; 3.1. Window; 3.2. Sealing baffle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The utility model provides a technical solution for solving the existing problems raised in the background technology.

[0023] Combined with attachment Figure 1 、 2 , 5, it can be known that the device includes a flue gas chimney 1, one end of the flue gas chimney 1 is connected to a monitoring pretreatment structure by bolts, the monitoring pretreatment structure includes an outer frame 2, and three slots 2.1 are provided on the upper and lower sides of the outer frame 2 to facilitate the placement of more filter plate structures 6, which can achieve an efficient filtering effect; a connecting frame 3 is provided in the slot 2.1, and a snap buckle 4 is fixed on both sides of the slot 2.1 on the lower side of the outer frame 2, and a snap rod 5 is rotatably provided in the snap buckle 4 on the lower side of the connecting frame 3, and two windows 3.1 are provided on the side of the connecting frame 3, and sealing baffles 3.2 are fixed laterally on the top, bottom and middle of the connecting frame 3, and the filter plate structure 6 is fixed to the window 3.1 by screws, and two threaded holes are provided on one side of the outer frame 2 at both ends, and a sensor 7 is threadedly sealed and connected to the threaded hole; the sensor 7 is electrically connected to an external power supply for real-time monitoring of flue gas concentration;

[0024] Combined with attachment Figure 3 、 4It can be seen that the upper and lower edges of the inner side of the slot 2.1 are both chamfered at 45 degrees, and the lower edge of the sealing baffle 3.2 located at the top of the connecting frame 3 is chamfered at 45 degrees to facilitate close fit with the upper edge of the top slot 2.1, and the upper edge of the sealing baffle 3.2 located at the bottom of the connecting frame 3 is chamfered at 45 degrees to facilitate close fit with the lower edge of the bottom slot 2.1, and the upper and lower edges of the sealing baffle 3.2 located in the middle of the connecting frame 3 are both chamfered at 45 degrees to facilitate close fit with the lower and upper edges of the top and bottom slots 2.1; the connecting frame 3 slides up and down in the slot 2.1 to facilitate timely replacement of the filter plate structure 6; the area of ​​the window 3.1 is smaller than the inner cross-sectional area of ​​the outer frame 2 to facilitate filtering smoke.

[0025] The working principle of the present application is as follows: when performing real-time monitoring of flue gas emissions, the outer frame 2 needs to be fixed to one end of the flue gas pipe 1 first, and then the other end of the outer frame 2 is connected to other pipes, and then the filter plate structure 6 is fixed by screws in a window 3.1 on the side of the three connecting frames 3, and then the part with the filter plate structure 6 fixed is set on the inner side of the outer frame 2. If the filter plate structure 6 is fixed in the lower window 3.1, it is necessary to push the connecting frame 3 upward, and then rotate the clamping rod 5 to clamp it in the clamping buckle 4 to fix the position of the connecting frame 3, and then fix the sensor 7 in the outer frame 2 to facilitate real-time online monitoring;

[0026] If the filter plate structure 6 needs to be cleaned, a new filter plate structure 6 can be fixed in advance by screws in another window 3.1 of the connecting frame 3 where the filter plate structure 6 to be replaced is located, and then the clamping rod 5 is rotated to disengage it from the clamping buckle 4, and then the connecting plate 3 will slide downward in the slot 2.1, so that the new filter plate structure 6 is located on the inner side of the outer frame 2, and then the old filter plate structure 6 can be disassembled and cleaned. This replacement process can be achieved without shutting down the flue gas system.

[0027] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. An industrial flue gas emission online monitoring and pretreatment device, comprising a flue gas pipe (1), one end of which is connected to a monitoring and pretreatment structure by bolts, characterized in that: The monitoring pretreatment structure comprises an outer frame (2), wherein a plurality of slots (2.1) are provided on the upper and lower sides of the outer frame (2), a connecting frame (3) is provided in the slots (2.1), a snap-fit ​​buckle (4) is fixed on both sides of the slots (2.1) on the lower side of the outer frame (2), a snap-fit ​​rod (5) is rotatably provided in the snap-fit ​​buckle (4) on the lower side of the connecting frame (3), two windows (3.1) are provided on the side of the connecting frame (3), sealing baffles (3.2) are transversely fixed on the top, bottom and middle of the connecting frame (3), a filter plate structure (6) is fixed to the window (3.1) by screws, and two threaded holes are provided on one side of the outer frame (2) at both ends, and a sensor (7) is threadedly and sealedly connected in the threaded hole.

2. The industrial flue gas emission online monitoring and pretreatment device according to claim 1 is characterized in that: The upper and lower inner edges of the notch (2.1) are both provided with 45-degree chamfers, the lower edge of the sealing baffle (3.2) located at the top of the connecting frame (3) is provided with a 45-degree chamfer, the upper edge of the sealing baffle (3.2) located at the bottom of the connecting frame (3) is provided with a 45-degree chamfer, and the upper and lower edges of the sealing baffle (3.2) located in the middle of the connecting frame (3) are both provided with 45-degree chamfers.

3. The industrial flue gas emission online monitoring and pretreatment device according to claim 1 is characterized in that: The connecting frame (3) slides up and down in the slot (2.1).

4. The industrial flue gas emission online monitoring and pretreatment device according to claim 1 is characterized in that: There are three of the plurality of notches (2.1).

5. The industrial flue gas emission online monitoring and pretreatment device according to claim 1 is characterized in that: The area of ​​the window (3.1) is smaller than the inner cross-sectional area of ​​the outer frame (2).

6. The industrial flue gas emission online monitoring and pretreatment device according to claim 1 is characterized by: The sensor (7) is electrically connected to an external power source.

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