A flue gas online monitoring device

Abstract

The utility model discloses an online flue gas monitoring device, comprising a first reserved hole, which is arranged on the flue main body, a first air intake pipe is arranged on one side of the detection box, the first air intake pipe is arranged corresponding to the first reserved hole, and a second solenoid valve is arranged at one end of the first air intake pipe; a smoke detection probe is arranged inside the detection box, and a data transceiver is arranged on one side of the detection box; a motor is arranged on one side of the detection box, a rotating frame is arranged inside the detection box, a mounting frame is arranged above the rotating frame, an electric push rod is arranged inside the telescopic cavity, and a sponge is arranged on the inner side of the mounting frame. The monitoring device can be installed and fixed vertically in the flue, and the smoke in the flue is drawn into the detection box for sampling and detection. Multiple monitoring devices are installed along the flue to measure multiple groups of data, which can reduce the smoke monitoring error and improve the online smoke monitoring effect.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas, in particular to an online flue gas monitoring device. Background Art

[0002] Flue gas monitoring refers to the monitoring of the concentration and total amount of gaseous pollutants and particulate matter emitted by air pollution sources. The water vapor content in flue gas is relatively high and varies widely. For the convenience of comparison, the monitoring method is based on the dry flue gas under standard conditions after the water vapor is removed as the benchmark to express the measurement results of harmful substances in flue gas. In the work of smoke and flue gas monitoring, the basic principle of the measurement hole location and measurement point arrangement is that the measurement hole location should be set in the stable section of the pipeline airflow, and vertical pipelines should be given priority.

[0003] The Chinese patent publication number is CN202075156U, and the authorization announcement date is December 14, 2011. An online flue gas monitoring device includes a bypass pipe, which is composed of an air inlet pipe, an air outlet pipe, and a straight pipe. The air inlet pipe and the air outlet pipe are connected to the straight pipe respectively. Among them, the front section of the air inlet pipe and the air outlet pipe is elliptical, the front section of the air inlet pipe faces the airflow, and the front section of the air outlet pipe faces away from the airflow; the air outlet pipe is connected to a guide pipe; the air inlet pipe, the air outlet pipe and the straight pipe are connected by flanges; in addition, mounting flanges are provided at both ends of the straight pipe. With this structure, the online flue gas monitoring device is easy to install and is very suitable for use in large-sized flues or flues with high smoke concentrations or high gas concentrations.

[0004] Existing monitoring devices generally install the transmitting and reflecting ends of the flue gas online monitoring device on both sides of the flue respectively. When monitoring a flue that is too large or the flue gas concentration is too high, the flue gas monitoring error will be greatly increased, the flue gas monitoring effect will be reduced, and it will not meet the use requirements. Utility Model Content

[0005] The purpose of the utility model is to provide an online flue gas monitoring device to solve the problem proposed in the above background technology that the existing monitoring devices generally install the transmitting and reflecting ends of the online flue gas monitoring device on both sides of the flue respectively. When monitoring the flue that is too large in size or the smoke concentration is too high, it will cause the smoke gas monitoring error to increase greatly, reduce the smoke gas monitoring effect, and cannot meet the use requirements.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an online flue gas monitoring device, comprising a flue main body and a detection box, and also comprising:

[0007] A first reserved hole is provided on the flue main body, a first air inlet pipe is provided on one side of the detection box, and the first air inlet pipe and the detection box are integrated, the first air inlet pipe is provided corresponding to the first reserved hole, and the first air inlet pipe is plugged into the flue main body, a second solenoid valve is provided at one end of the first air inlet pipe, and the second solenoid valve is connected to the first air inlet pipe as a whole, and the second solenoid valve is provided inside the detection box;

[0008] A smoke detection probe is arranged inside the detection box, and the smoke detection probe is fixedly connected to the detection box. A data transceiver is arranged on one side of the detection box, and the data transceiver is fixedly connected to the detection box. The data transceiver is electrically connected to the smoke detection probe. A power line is arranged below the data transceiver, and the power line and the data transceiver are connected as a whole.

[0009] A motor is arranged on one side of the detection box, and the motor is connected to the detection box by screws, a rotating frame is arranged inside the detection box, and the rotating frame is connected to the output end of the motor, a telescopic cavity is arranged inside the rotating frame, a mounting frame is arranged above the rotating frame, and the mounting frame is L-shaped, the mounting frame is arranged outside one side of the smoke detection probe, one end of the mounting frame extends to the inside of the telescopic cavity, and the mounting frame is slidably connected to the rotating frame, an electric push rod is arranged inside the telescopic cavity, and the electric push rod is fixedly connected to the rotating frame and the mounting frame, a sponge is arranged on the inner side of the mounting frame, and the sponge is fixedly connected to the mounting frame.

[0010] Preferably, a second reserved hole is provided on the flue main body, and the second reserved hole is provided above the first reserved hole, a third reserved hole is provided at the upper end of the detection box, a first solenoid valve is provided at the upper end of the third reserved hole, and the first solenoid valve is fixedly connected to the detection box, an exhaust pipe is provided above the first solenoid valve, and one end of the exhaust pipe is connected to the first solenoid valve as a whole, the exhaust pipe and the second reserved hole are provided correspondingly, a fan is provided inside the detection box, and the fan is fixedly connected to the detection box, and the fan is provided below the third reserved hole.

[0011] Preferably, a sealing ring is provided on the outside of one end of the exhaust pipe and the first air inlet pipe, and the sealing ring is connected to the exhaust pipe and the first air inlet pipe as a whole, and the sealing ring fits with the inner wall of the first reserved hole and the second reserved hole.

[0012] Preferably, a second air inlet pipe is provided below the detection box, and the second air inlet pipe and the detection box are integrated, a third solenoid valve is provided at one end of the second air inlet pipe, and the third solenoid valve is connected to the second air inlet pipe as a whole, and the third solenoid valve is arranged inside the detection box.

[0013] Preferably, the other ends of the first air inlet pipe and the second air inlet pipe are each provided with a filter plate, and the filter plate is fixedly connected to the first air inlet pipe and the second air inlet pipe, the upper end of the telescopic cavity is provided with a dust ring, and the dust ring is fixedly connected to the rotating frame, the dust ring is arranged on the outside of the mounting frame, and the dust ring is in contact with the mounting frame.

[0014] Preferably, an inspection plate is provided on one side of the detection box, and the inspection plate is connected to the detection box by screws, a visual window is provided on the inspection plate, and the visual window and the inspection plate are integrated, and the bottom of the detection box is inclined.

[0015] Preferably, mounting blocks are provided on both sides of the detection box, and the mounting blocks are fixedly connected to the detection box, a mounting bolt is provided on one side of the mounting block, and the mounting bolt is movably connected to the mounting block, the mounting bolt is threadedly connected to the flue body, and a spring gasket is provided on the outside of the mounting bolt.

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

[0017] 1. The utility model device is provided with a detection box, a smoke detection probe, a data transceiver, an exhaust pipe and a first air inlet pipe. The smoke in the flue enters the interior of the detection box along the first air inlet pipe, and the smoke in the detection box contacts the smoke detection probe. The smoke is detected by the smoke detection probe, and the detection result is sent through the data transceiver to realize the smoke online monitoring function. The exhaust pipe sends the detected smoke back into the flue;

[0018] 2. The utility model device injects outside air into the detection box after monitoring is completed by setting the second air inlet pipe, and carries the smoke in the detection box into the flue from the exhaust pipe, so as to exhaust the residual smoke in the detection box more thoroughly, thereby ensuring the accuracy of subsequent monitoring;

[0019] 3. The utility model device is provided with a motor, a rotation, a mounting frame and a sponge. The electric push rod drives the mounting frame to extend and retract, adjusts the connection state of the sponge and the smoke detection probe, and the motor drives the rotating frame to rotate. As the rotating frame rotates, the sponge adheres to the smoke detection probe and rotates and wipes it, thereby cleaning the smoke detection probe and ensuring the detection accuracy of the smoke detection probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 This is a diagram showing the connection relationship between the smoke detection probe, the motor and the detection box of the utility model;

[0023] Figure 4 For the utility model Figure 3 A partial enlarged view of area A;

[0024] Figure 5 This is a diagram showing the connection relationship between the mounting block and the flue body of the utility model.

[0025] In the figure: 1. flue main body; 2. detection box; 3. inspection panel; 4. visual window; 5. flue gas detection probe; 6. data transceiver; 7. power cord; 8. mounting block; 9. mounting bolt; 10. exhaust pipe; 11. first solenoid valve; 12. sealing ring; 13. first reserved hole; 14. first air inlet pipe; 15. second solenoid valve; 16. second reserved hole; 17. third reserved hole; 18. fan; 19. second air inlet pipe; 20. filter plate; 21. third solenoid valve; 22. electric push rod; 23. motor; 24. rotating frame; 25. telescopic chamber; 26. mounting frame; 27. sponge; 28. dustproof ring; 29. ​​spring gasket. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] See also Figure 1-5 The utility model provides an embodiment: a flue gas online monitoring device, including a flue main body 1 and a detection box 2, and also includes:

[0028] A first reserved hole 13 is provided on the flue main body 1, a first air inlet pipe 14 is provided on one side of the detection box 2, and the first air inlet pipe 14 and the detection box 2 are integrated, the first air inlet pipe 14 and the first reserved hole 13 are provided correspondingly, and the first air inlet pipe 14 is plugged with the flue main body 1, a second solenoid valve 15 is provided at one end of the first air inlet pipe 14, and the second solenoid valve 15 is connected to the first air inlet pipe 14 as a whole, and the second solenoid valve 15 is provided inside the detection box 2;

[0029] A smoke detection probe 5 is arranged inside the detection box 2, and the smoke detection probe 5 is fixedly connected to the detection box 2. A data transceiver 6 is arranged on one side of the detection box 2, and the data transceiver 6 is fixedly connected to the detection box 2. The data transceiver 6 is electrically connected to the smoke detection probe 5. A power line 7 is arranged below the data transceiver 6, and the power line 7 is connected to the data transceiver 6 as a whole;

[0030] The motor 23 is arranged on one side of the detection box 2, and the motor 23 is connected to the detection box 2 by screws. A rotating frame 24 is arranged inside the detection box 2, and the rotating frame 24 is connected to the output end of the motor 23. A telescopic cavity 25 is arranged inside the rotating frame 24. A mounting frame 26 is arranged above the rotating frame 24, and the mounting frame 26 is L-shaped. The mounting frame 26 is arranged on the outside of one side of the smoke detection probe 5, one end of the mounting frame 26 extends to the inside of the telescopic cavity 25, and the mounting frame 26 is slidably connected to the rotating frame 24. An electric push rod 22 is arranged inside the telescopic cavity 25, and the electric push rod 22 is fixedly connected to the rotating frame 24 and the mounting frame 26. A sponge 27 is arranged on the inner side of the mounting frame 26, and the sponge 27 is fixedly connected to the mounting frame 26.

[0031] During use: open the second solenoid valve 15, the smoke in the flue enters the interior of the detection box 2 along the first air inlet pipe 14, the smoke in the detection box 2 contacts the smoke detection probe 5, and the smoke is detected by the smoke detection probe 5. The detection result is sent through the data transceiver 6 to realize the smoke online monitoring function. After using it for a period of time, first drive the electric push rod 22 to drive the mounting frame 26 to move, and make the sponge 27 contact the outer wall of the smoke detection probe 5, and then start the motor 23 to drive the rotating frame 24 to rotate. As the rotating frame 24 rotates, the sponge 27 is in contact with the smoke detection probe 5 and rotates and wipes, so that the smoke detection probe 5 is cleaned, which can ensure the detection accuracy of the smoke detection probe 5. During monitoring, drive the electric push rod 22 to separate the mounting frame 26 from the smoke detection probe 5.

[0032] See also Figure 1 and Figure 2 A second reserved hole 16 is provided on the flue main body 1, and the second reserved hole 16 is arranged above the first reserved hole 13, a third reserved hole 17 is provided at the upper end of the detection box 2, a first solenoid valve 11 is provided at the upper end of the third reserved hole 17, and the first solenoid valve 11 is fixedly connected to the detection box 2, an exhaust pipe 10 is provided above the first solenoid valve 11, and one end of the exhaust pipe 10 is connected to the first solenoid valve 11 as a whole, the exhaust pipe 10 and the second reserved hole 16 are arranged correspondingly, a fan 18 is provided inside the detection box 2, and the fan 18 is fixedly connected to the detection box 2, the fan 18 is arranged below the third reserved hole 17, suction is generated by the fan 18, and under the action of the suction, the smoke in the flue is better drawn into the detection box 2 along the first air inlet pipe 14, and the exhaust pipe 10 can send the detected smoke back into the flue.

[0033] See also Figure 1 and Figure 2A sealing ring 12 is provided on the outside of one end of the exhaust pipe 10 and the first air inlet pipe 14, and the sealing ring 12 is connected to the exhaust pipe 10 and the first air inlet pipe 14 as a whole. The sealing ring 12 fits with the inner walls of the first reserved hole 13 and the second reserved hole 16. The sealing ring 12 ensures the sealing of the connection between the exhaust pipe 10 and the first air inlet pipe 14 and the flue to prevent smoke leakage.

[0034] See also Figure 2 A second air intake pipe 19 is provided below the detection box 2, and the second air intake pipe 19 is integrated with the detection box 2. A third solenoid valve 21 is provided at one end of the second air intake pipe 19, and the third solenoid valve 21 is connected with the second air intake pipe 19 as a whole. The third solenoid valve 21 is provided inside the detection box 2. After the monitoring is completed, the outside air is injected into the detection box 2 through the second air intake pipe 19 and the third solenoid valve 21, and the residual smoke in the detection box 2 is more thoroughly sent into the flue from the exhaust pipe 10, which can ensure the subsequent monitoring accuracy.

[0035] See also Figure 2 A filter plate 20 is provided at the other end of the first air inlet pipe 14 and the second air inlet pipe 19, and the filter plate 20 is fixedly connected to the first air inlet pipe 14 and the second air inlet pipe 19. A dust ring 28 is provided at the upper end of the telescopic cavity 25, and the dust ring 28 is fixedly connected to the rotating frame 24. The dust ring 28 is arranged on the outside of the mounting frame 26, and the dust ring 28 is fitted with the mounting frame 26. The extracted smoke and air are filtered by the filter plate 20 to prevent particulate matter from being sucked into the detection box 2.

[0036] See also Figure 1 and Figure 2 A repair plate 3 is provided on one side of the detection box 2, and the repair plate 3 is connected to the detection box 2 by screws. A visual window 4 is provided on the repair plate 3, and the visual window 4 and the repair plate 3 are integrated, and the bottom of the detection box 2 is tilted.

[0037] See also Figure 1 and Figure 5 , mounting blocks 8 are provided on both sides of the detection box 2, and the mounting blocks 8 are fixedly connected to the detection box 2, a mounting bolt 9 is provided on one side of the mounting block 8, and the mounting bolt 9 is movably connected to the mounting block 8, the mounting bolt 9 is threadedly connected to the flue main body 1, and a spring gasket 29 is provided on the outside of the mounting bolt 9.

[0038] Working principle: Open the first solenoid valve 11 and the second solenoid valve 15 and turn on the fan 18, the fan 18 generates suction, and under the action of the suction, the smoke in the flue is drawn into the detection box 2 along the first air inlet pipe 14. After the smoking is completed, the first solenoid valve 11, the second solenoid valve 15 and the fan 18 are closed; the smoke in the detection box 2 contacts the smoke detection probe 5, and the smoke is detected by the smoke detection probe 5. The detection result is sent through the data transceiver 6 to realize the smoke online monitoring function; after the monitoring is completed, open the first solenoid valve 11 and the third solenoid valve 21 and turn on the fan 18, the fan 18 generates suction , under the action of suction, the outside air is drawn and injected into the detection box 2, and the injected air carries the smoke in the detection box 2 from the exhaust pipe 10 into the flue; after using it for a period of time, the electric push rod 22 is driven to drive the mounting frame 26 to move, so that the sponge 27 contacts the outer wall of the smoke detection probe 5, and then the motor 23 is turned on to drive the rotating frame 24 to rotate. As the rotating frame 24 rotates, the sponge 27 is in contact with the smoke detection probe 5 and rotates to wipe it, so as to clean the smoke detection probe 5 and ensure the detection accuracy of the smoke detection probe 5. During monitoring, the electric push rod 22 is driven to separate the mounting frame 26 from the smoke detection probe 5.

[0039] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flue gas online monitoring device, comprising a flue main body (1) and a detection box (2), characterized in that: Also includes: A first reserved hole (13) is arranged on the flue main body (1); a first air intake pipe (14) is arranged on one side of the detection box (2); the first air intake pipe (14) and the detection box (2) are arranged as a whole; the first air intake pipe (14) and the first reserved hole (13) are arranged correspondingly; the first air intake pipe (14) and the flue main body (1) are plugged; a second solenoid valve (15) is arranged at one end of the first air intake pipe (14); the second solenoid valve (15) and the first air intake pipe (14) are connected as a whole; the second solenoid valve (15) is arranged inside the detection box (2); A smoke detection probe (5) is arranged inside the detection box (2), and the smoke detection probe (5) is fixedly connected to the detection box (2); a data transceiver (6) is arranged on one side of the detection box (2), and the data transceiver (6) is fixedly connected to the detection box (2); the data transceiver (6) is electrically connected to the smoke detection probe (5); a power line (7) is arranged below the data transceiver (6), and the power line (7) and the data transceiver (6) are connected as a whole; A motor (23) is arranged on one side of the detection box (2), and the motor (23) is connected to the detection box (2) by screws; a rotating frame (24) is arranged inside the detection box (2), and the rotating frame (24) is connected to the output end of the motor (23); a telescopic cavity (25) is arranged inside the rotating frame (24); a mounting frame (26) is arranged above the rotating frame (24), and the mounting frame (26) is arranged in an L shape; and the mounting frame (26) is arranged On the outside of one side of the smoke detection probe (5), one end of the mounting frame (26) extends to the inside of the telescopic cavity (25), and the mounting frame (26) is slidably connected to the rotating frame (24), an electric push rod (22) is arranged inside the telescopic cavity (25), and the electric push rod (22) is fixedly connected to the rotating frame (24) and the mounting frame (26), and a sponge (27) is arranged on the inner side of the mounting frame (26), and the sponge (27) is fixedly connected to the mounting frame (26).

2. The flue gas online monitoring device according to claim 1, characterized in that: The flue main body (1) is provided with a second reserved hole (16), and the second reserved hole (16) is arranged above the first reserved hole (13); the upper end of the detection box (2) is provided with a third reserved hole (17); the upper end of the third reserved hole (17) is provided with a first solenoid valve (11), and the first solenoid valve (11) is fixedly connected to the detection box (2); an exhaust pipe (10) is provided above the first solenoid valve (11), and one end of the exhaust pipe (10) is connected to the first solenoid valve (11) as a whole; the exhaust pipe (10) and the second reserved hole (16) are arranged correspondingly; a fan (18) is provided inside the detection box (2), and the fan (18) is fixedly connected to the detection box (2); and the fan (18) is arranged below the third reserved hole (17).

3. The flue gas online monitoring device according to claim 2, characterized in that: A sealing ring (12) is provided on the outside of one end of the exhaust pipe (10) and the first air intake pipe (14), and the sealing ring (12) is connected to the exhaust pipe (10) and the first air intake pipe (14) as a whole, and the sealing ring (12) fits with the inner walls of the first reserved hole (13) and the second reserved hole (16).

4. The flue gas online monitoring device according to claim 1, characterized in that: A second air intake pipe (19) is arranged below the detection box (2), and the second air intake pipe (19) and the detection box (2) are arranged as a whole; a third solenoid valve (21) is arranged at one end of the second air intake pipe (19), and the third solenoid valve (21) and the second air intake pipe (19) are connected as a whole; the third solenoid valve (21) is arranged inside the detection box (2).

5. The flue gas online monitoring device according to claim 4, characterized in that: The other ends of the first air inlet pipe (14) and the second air inlet pipe (19) are both provided with a filter disc (20), and the filter disc (20) is fixedly connected to the first air inlet pipe (14) and the second air inlet pipe (19); the upper end of the telescopic cavity (25) is provided with a dustproof ring (28), and the dustproof ring (28) is fixedly connected to the rotating frame (24); the dustproof ring (28) is arranged outside the mounting frame (26), and the dustproof ring (28) is in close contact with the mounting frame (26).

6. The flue gas online monitoring device according to claim 1, characterized in that: An inspection plate (3) is provided on one side of the detection box (2), and the inspection plate (3) is connected to the detection box (2) by screws. A visual window (4) is provided on the inspection plate (3), and the visual window (4) and the inspection plate (3) are integrated. The bottom of the detection box (2) is arranged at an angle.

7. The flue gas online monitoring device according to claim 1, characterized in that: Mounting blocks (8) are provided on both sides of the detection box (2), and the mounting blocks (8) are fixedly connected to the detection box (2); a mounting bolt (9) is provided on one side of the mounting block (8), and the mounting bolt (9) is movably connected to the mounting block (8); the mounting bolt (9) is threadedly connected to the flue body (1); and a spring gasket (29) is provided outside the mounting bolt (9).

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