Flue gas monitoring device with purification function for boiler combustion

Abstract

The utility model relates to the technical field of flue gas monitoring devices, in particular to a boiler combustion flue gas monitoring device with a purification function, which comprises a monitoring pipe, a controller, a steering engine and a baffle plate, one side of the monitoring pipe is connected with a controller through a support, the front portion of the monitoring pipe is connected with a steering engine through a bolt, the output end of the steering engine penetrates through the inner wall of the monitoring pipe and is connected with a baffle through a coupler, the baffle is rotationally connected to the inner wall of the monitoring pipe, and the side, away from the controller, of the monitoring pipe is connected with a purification mechanism. And the inner wall of the monitoring pipe is connected with a first flue gas detector and a first temperature sensor through a bracket. According to the flue gas monitoring device for boiler combustion, the exhaust fan is started to introduce flue gas in the monitoring pipe into the desulfurization and denitrification liquid in the purification box, meanwhile, the desulfurization and denitrification liquid is sprayed out from the spray head to remove sulfur dioxide and nitrogen oxide in the flue gas, then the flue gas is discharged after residual harmful substances are absorbed by the activated carbon net, and then the flue gas is purified by the flue gas monitoring device for boiler combustion.

Description

Technical Field

[0001] This utility model relates to the technical field of flue gas monitoring devices, specifically a flue gas monitoring device for boiler combustion with purification function. Background Technology

[0002] Flue gas monitoring devices are used to monitor and analyze the composition of flue gas from industrial emissions or other locations in real time. Their main function is to detect harmful substances in the flue gas, ensuring that emissions meet environmental standards and preventing air pollution. Flue gas monitoring devices are commonly used in industries such as coal combustion, power generation, steel, and chemicals. However, existing flue gas monitoring devices still have certain shortcomings in their use, such as…

[0003] Publication number CN213398388U discloses a flue gas monitoring device for boiler combustion, comprising a monitoring tube, a diversion tube, a motor, a solar panel, a filter element, and an exhaust fan. The diversion tube and solar panel are located on one side of the monitoring tube. The monitoring tube includes an air inlet, a first exhaust outlet, and a protective cover. The air inlet is located at the bottom of the monitoring tube, and the first exhaust outlet is located at the top. A flue gas detector and a temperature sensor are installed inside the air inlet. The monitoring tube contains a battery, a controller, and a data transmitter. The motor is located on one side of the first exhaust outlet, and a baffle is installed on one side of the motor. The diversion tube includes a diversion port and a second exhaust outlet, with the diversion port located on one side of the monitoring tube and the second exhaust outlet located at the top. The filter element is located on one side of the diversion port, and the exhaust fan is located on one side of the second exhaust outlet. This invention not only facilitates monitoring of boiler flue gas emission quality and intelligent filtration, but also facilitates energy saving and power storage.

[0004] The aforementioned document states that only filter elements are used to filter substandard flue gas. However, the flue gas produced by boiler combustion contains particles, sulfur compounds, and nitrogen compounds, all of which pollute the atmosphere. Filter elements can only filter larger particles and cannot handle other harmful substances in the flue gas, resulting in poor purification. Therefore, a flue gas monitoring device with purification function for boiler combustion is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a boiler combustion flue gas monitoring device with purification function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a boiler combustion flue gas monitoring device with purification function, comprising: a monitoring tube, a controller, a servo motor, and a baffle;

[0007] A controller is connected to one side of the monitoring tube via a bracket, and a servo motor is bolted to the front of the monitoring tube. The output end of the servo motor passes through the inner wall of the monitoring tube and is connected to a baffle via a coupling. The baffle is rotatably connected to the inner wall of the monitoring tube. A purification mechanism is connected to the side of the monitoring tube away from the controller, and a first flue gas detector and a first temperature sensor are connected to the inner wall of the monitoring tube via a bracket. A docking mechanism is connected to the bottom of the monitoring tube.

[0008] The purification mechanism includes a purification box connected to the side of the monitoring tube away from the controller via a bracket. A rigid pipe is connected through one side of the inner wall of the purification box, and the rigid pipe is connected through the inner wall of the monitoring tube. A circulation pump is connected to one side of the purification box via a filter pipe. The circulation pump is connected to one side of the purification box via a bracket, and the other end of the circulation pump is connected to a water pipe. The water pipe passes through the inner wall of the purification box and is connected to an annular pipe. The annular pipe is connected to the inner wall of the purification box via a bracket, and a nozzle is connected to the bottom of the annular pipe.

[0009] Preferably, a baffle demister is bolted to the inner wall of the purification chamber near the top of the annular pipe, and an activated carbon mesh is slidably connected to the inner wall of the purification chamber near the top of the baffle demister via a support plate.

[0010] Preferably, an air pipe is connected through the upper part of the inner wall of the purification box, and an exhaust fan is connected to the other end of the air pipe. The exhaust fan is bolted to the back of the purification box.

[0011] Preferably, a second flue gas detector and a second temperature sensor are connected through the upper part of the inner wall of the purification box near the side of the trachea.

[0012] Preferably, the docking mechanism includes a conical tube fixedly connected to the bottom of the monitoring tube, a silicone sleeve connected to the outside of the conical tube by adhesive, and a support ring fixedly connected to the top of the conical tube.

[0013] Preferably, the bottom of the support ring is connected to a vertical plate, and the bottom of the vertical plate is connected to a connecting ring.

[0014] Preferably, a movable ring is slidably connected to the upright plate, and a short threaded shank is abutted on one side of the movable ring, the short threaded shank being threadedly connected inside the movable ring.

[0015] Preferably, the movable ring, located away from the short threaded shank, is internally threaded with a long threaded shank, and the end of the long threaded shank is rotatably connected to an arc-shaped plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: By starting the exhaust fan, the flue gas in the monitoring tube is passed into the desulfurization and denitrification liquid in the purification box. At the same time, the desulfurization and denitrification liquid is sprayed out from the nozzle to remove sulfur dioxide and nitrogen oxides from the flue gas. Then, the remaining harmful substances are absorbed by the activated carbon mesh before being discharged. Thus, the flue gas monitoring device for boiler combustion purifies the flue gas. The specific details are as follows:

[0017] 1. By starting the exhaust fan, the air in the purification box is exhausted, and the flue gas in the monitoring tube is passed into the desulfurization and denitrification liquid in the purification box. At the same time, the desulfurization and denitrification liquid in the purification box is filtered through the filter tube and sprayed out from the nozzle to remove sulfur dioxide and nitrogen oxides from the flue gas. Then, the mist is removed by the baffle plate demister, and the remaining harmful substances are absorbed by the activated carbon mesh before being discharged. Thus, the flue gas monitoring device for boiler combustion purifies the flue gas.

[0018] 2. By connecting the connecting ring and the movable ring to the flue gas duct, pushing the support ring to drive the tapered tube to squeeze the silicone sleeve for sealing, and then rotating the long threaded shank to drive the arc plate to squeeze on the outside of the flue gas duct, the flue gas monitoring device for boiler combustion can be adapted to different flue gas ducts. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the monitoring tube of this utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the baffle of this utility model;

[0022] Figure 4 This is a schematic diagram of the main cross-sectional structure of the monitoring tube of this utility model;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the annular tube of this utility model;

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the arc-shaped plate of this utility model.

[0025] In the diagram: 1. Monitoring tube; 2. Controller; 3. Servo motor; 4. Baffle; 5. Purification mechanism; 501. Purification box; 502. Rigid pipe; 503. Circulation pump; 504. Water pipe; 505. Ring pipe; 506. Nozzle; 507. Baffle plate demister; 508. Activated carbon mesh; 509. Gas pipe; 510. Exhaust fan; 511. Second flue gas detector; 512. Second temperature sensor; 6. First flue gas detector; 7. First temperature sensor; 8. Docking mechanism; 801. Conical tube; 802. Silicone sleeve; 803. Support ring; 804. Vertical plate; 805. Connecting ring; 806. Movable ring; 807. Short threaded shank; 808. Long threaded shank; 809. Arc plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5This utility model provides a technical solution: a boiler combustion flue gas monitoring device with purification function, comprising: a monitoring tube 1, a controller 2, a servo motor 3, and a baffle 4; the controller 2 is connected to one side of the monitoring tube 1 via a bracket, and the servo motor 3 is bolted to the front of the monitoring tube 1. The output end of the servo motor 3 passes through the inner wall of the monitoring tube 1 and is connected to the baffle 4 via a coupling. The baffle 4 is rotatably connected to the inner wall of the monitoring tube 1. A purification mechanism 5 is connected to the side of the monitoring tube 1 away from the controller 2, and a first flue gas detector 6 and a first temperature sensor 7 are connected to the inner wall of the monitoring tube 1 via a bracket. A docking mechanism 8 is connected to the bottom of the monitoring tube 1; the purification mechanism 5 includes a purification box 501 connected to the side of the monitoring tube 1 away from the controller 2 via a bracket, a rigid pipe 502 passing through one side of the inner wall of the purification box 501, the rigid pipe 502 passing through one side of the inner wall of the monitoring tube 1, and a circulation system connected to one side of the purification box 501 via a filter pipe. Pump 503, a circulating pump 503, is connected to one side of the purification chamber 501 via a bracket, and the other end of the circulating pump 503 is connected to a water pipe 504. The water pipe 504 passes through the inner wall of the purification chamber 501 and is connected to an annular pipe 505. The annular pipe 505 is connected to the inner wall of the purification chamber 501 via a bracket, and a nozzle 506 is connected to the bottom of the annular pipe 505. A baffle demister 507 is bolted to the inner wall of the purification chamber 501 near the annular pipe 505. An activated carbon mesh 508 is slidably connected to the inner wall of the purification box 501 above the baffle plate demister 507 via a support plate. An air pipe 509 is connected through the upper part of the inner wall of the purification box 501. The other end of the air pipe 509 is connected to an exhaust fan 510. The exhaust fan 510 is bolted to the back of the purification box 501. A second flue gas detector 511 and a second temperature sensor 512 are connected through the upper part of the inner wall of the purification box 501 on the side near the air pipe 509.

[0028] In practice, the exhaust fan 510 is started to exhaust the air in the purification box 501 through the air pipe 509. The flue gas in the monitoring pipe 1 is drawn into the purification box 501 through the hard pipe 502 and introduced into the desulfurization and denitrification liquid in the purification box 501. At the same time, the desulfurization and denitrification liquid in the purification box 501 is filtered by the filter pipe and then sent from the water pipe 504 to the annular pipe 505 by the circulation pump 503. Then it is sprayed out from the nozzle 506 to spray the flue gas, removing sulfur dioxide and nitrogen oxides from the flue gas. Then the mist is removed by the baffle plate demister 507. After the activated carbon mesh 508 absorbs the remaining harmful substances, it is discharged from the air pipe 509 through the exhaust fan 510, so that the flue gas is purified by the flue gas monitoring device for boiler combustion.

[0029] See Figure 1 , Figure 2 , Figure 4 and Figure 6It is known that the docking mechanism 8 includes a tapered tube 801 fixedly connected to the bottom of the monitoring tube 1. A silicone sleeve 802 is connected to the outside of the tapered tube 801 by glue. A support ring 803 is fixedly connected to the top of the tapered tube 801. A vertical plate 804 is connected to the bottom of the support ring 803. A connecting ring 805 is connected to the bottom of the vertical plate 804. A movable ring 806 is slidably connected to the vertical plate 804. A short threaded shank 807 is abutted on one side of the movable ring 806. The short threaded shank 807 is threadedly connected inside the movable ring 806. A long threaded shank 808 is threadedly connected inside the movable ring 806 away from the short threaded shank 807. An arc-shaped plate 809 is rotatably connected to the end of the long threaded shank 808.

[0030] In practice, the connecting ring 805 and the movable ring 806 are fitted onto the flue gas duct, the cone tube 801 is inserted into the flue gas duct, and then the short threaded handle 807 is tightened to fix the movable ring 806 onto the vertical plate 804. Then, the support ring 803 is pushed to drive the cone tube 801 to squeeze the silicone sleeve 802. The silicone sleeve 802 abuts against the inner wall of the flue gas duct to seal it. Then, the long threaded handle 808 is rotated to drive the arc plate 809 to squeeze against the outside of the flue gas duct, so that the flue gas monitoring device for boiler combustion can adapt to different flue gas ducts.

[0031] In summary: When using this boiler combustion flue gas monitoring device with purification function, firstly, the connecting ring 805 and the movable ring 806 are fitted onto the flue gas pipe, and the short threaded handle 807 is tightened. Then, the support ring 803 is pushed to drive the cone tube 801 to squeeze the silicone sleeve 802, which abuts against the inner wall of the flue gas pipe for sealing. Next, the long threaded handle 808 is rotated to install the boiler combustion flue gas monitoring device on the flue gas pipe. Desulfurization and denitrification liquid and ammonia water are added to the purification box 501. The flue gas enters the monitoring tube 1 and is checked by the first flue gas detector 6 and the first temperature sensor 7. The data is transmitted to the controller 2 for analysis and alignment. If the data is within the qualified threshold range, the servo motor 3 is activated to drive the baffle 4 to rotate and stand up, allowing the flue gas to be discharged from above the monitoring tube 1. If the data is not qualified, the position of the baffle 4 is maintained. The exhaust fan 510 is activated, and the substandard flue gas in monitoring tube 1 is passed into the desulfurization and denitrification liquid and ammonia water mixture in purification box 501. Bubbles are generated, rise and burst, and are then adsorbed by the sprayed desulfurization and denitrification liquid and ammonia water mixture to remove sulfur dioxide and nitrogen oxides from the flue gas. The flue gas and water mist pass through the baffle plate demister 507 to remove water mist. Then, the flue gas passes through the activated carbon mesh 508 to absorb the remaining harmful substances and is discharged from the gas pipe 509 through the exhaust fan 510. The second flue gas detector 511 and the second temperature sensor 512 check the purified flue gas. If it is substandard, the controller 2 reminds the staff to replace the desulfurization and denitrification liquid and ammonia water mixture and the activated carbon mesh 508. The contents not described in detail in this instruction are existing technologies known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A boiler combustion flue gas monitoring device with purification function, comprising: The monitoring tube (1), controller (2), servo motor (3), and baffle (4) Its characteristics are: A controller (2) is connected to one side of the monitoring tube (1) via a bracket, and a servo motor (3) is connected to the front of the monitoring tube (1) via bolts. The output end of the servo motor (3) passes through the inner wall of the monitoring tube (1) and is connected to a baffle (4) via a coupling. The baffle (4) is rotatably connected to the inner wall of the monitoring tube (1). A purification mechanism (5) is connected to the side of the monitoring tube (1) away from the controller (2), and a first flue gas detector (6) and a first temperature sensor (7) are connected to the inner wall of the monitoring tube (1) via a bracket. A docking mechanism (8) is connected to the bottom of the monitoring tube (1). The purification mechanism (5) includes a purification box (501) connected to the side of the monitoring tube (1) away from the controller (2) by a bracket. A rigid pipe (502) is connected through one side of the inner wall of the purification box (501). The rigid pipe (502) is connected through one side of the inner wall of the monitoring tube (1). A circulation pump (503) is connected to one side of the purification box (501) by a filter pipe. The circulation pump (503) is connected to one side of the purification box (501) by a bracket. The other end of the circulation pump (503) is connected to a water pipe (504). The water pipe (504) is connected through the inner wall of the purification box (501) to an annular pipe (505). The annular pipe (505) is connected to the inner wall of the purification box (501) by a bracket. A nozzle (506) is connected to the bottom of the annular pipe (505).

2. The boiler combustion flue gas monitoring device with purification function according to claim 1, characterized in that: A baffle demister (507) is bolted to the inner wall of the purification box (501) above the annular pipe (505), and an activated carbon mesh (508) is slidably connected to the inner wall of the purification box (501) above the baffle demister (507) via a support plate.

3. The boiler combustion flue gas monitoring device with purification function according to claim 1, characterized in that: An air pipe (509) is connected through the upper part of the inner wall of the purification box (501), and the other end of the air pipe (509) is connected to an exhaust fan (510). The exhaust fan (510) is bolted to the back of the purification box (501).

4. A boiler combustion flue gas monitoring device with purification function according to claim 3, characterized in that: A second flue gas detector (511) and a second temperature sensor (512) are connected through the upper part of the inner wall of the purification box (501) near the side of the air pipe (509).

5. A boiler combustion flue gas monitoring device with purification function according to claim 1, characterized in that: The docking mechanism (8) includes a conical tube (801) fixedly connected to the bottom of the monitoring tube (1), a silicone sleeve (802) is connected to the outside of the conical tube (801) by glue, and a support ring (803) is fixedly connected to the top of the conical tube (801).

6. A boiler combustion flue gas monitoring device with purification function according to claim 5, characterized in that: The bottom of the support ring (803) is connected to a vertical plate (804), and the bottom of the vertical plate (804) is connected to a connecting ring (805).

7. A boiler combustion flue gas monitoring device with purification function according to claim 6, characterized in that: A movable ring (806) is slidably connected to the upright plate (804), and a short threaded shank (807) abuts against one side of the movable ring (806), and the short threaded shank (807) is threadedly connected inside the movable ring (806).

8. A boiler combustion flue gas monitoring device with purification function according to claim 7, characterized in that: The movable ring (806) away from the short threaded shank (807) is internally threaded to a long threaded shank (808), and the end of the long threaded shank (808) is rotatably connected to an arc-shaped plate (809).

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