Monitoring system for harmful gas in incineration chamber

Abstract

The invention belongs to the technical field of waste incineration disposal, and particularly relates to a harmful gas monitoring system in an incineration chamber, which comprises the incineration chamber, a transmission channel, treatment equipment and a control system, ammonia gas and methane firstly enter the transmission channel from the incineration chamber, and when the concentration of the ammonia gas and the methane is high, the treatment equipment is started; the gas sequentially passes through a circulation layer, a first filter layer, a biological scrubber, a second filter layer, a catalytic oxidation reactor, a third filter layer, a dehumidifier and a detector to be subjected to reflux treatment, and when the concentration is low, the circulation layer, a gas guide port, the first filter layer, the biological scrubber, the second filter layer, the catalytic oxidation reactor, the third filter layer, the dehumidifier and the detector are randomly selected; when the waste gas reaches the emission standard, the waste gas is exhausted from the exhaust port, and if the waste gas does not reach the emission standard, the waste gas enters the movable channel again for secondary treatment until the standard is reached; compared with the prior art, the treatment path is flexibly adjusted and the energy consumption is reduced according to the gas concentration and components.

Description

Technical Field

[0001] The present invention relates to the technical field of waste incineration disposal, and more specifically, it relates to a harmful gas monitoring system in an incineration chamber. Background Art

[0002] During the incineration of coal and nitrogen-containing waste, the main reactions are pyrolysis reaction and oxidation reaction. The pyrolysis reaction will produce some nitrogen-containing compounds, which are further converted into ammonia in the oxidation reaction. When burning waste containing organic matter, methane will be produced during the anaerobic fermentation process before incineration, and methane will continue to decompose in the ash residue after incineration. Ammonia and methane pose a serious threat to the environment and human health.

[0003] For example, a method and system for treating ammonia- and methane-containing waste gas disclosed in the authorized announcement number CN110605016 B includes passing the ammonia- and methane-containing waste gas into a first biological trickling filter tower, and at the same time spraying nutrient solution on its packing to remove ammonia in the waste gas, obtaining treated gas and a first leaching solution; passing the treated gas into a second biological trickling filter tower, and at the same time spraying the first leaching solution with the nutrient solution onto the packing of the second biological trickling filter tower for methane oxidation and denitrification treatment, obtaining purified waste gas and a second leaching solution, and spraying the second leaching solution with the nutrient solution onto the packing of the first biological trickling filter tower; wherein, the packing of the second biological trickling filter tower is loaded with methane-oxidizing bacteria and aerobic denitrifying bacteria.

[0004] In the above, the traditional treatment system usually adopts a fixed treatment process, and the gas passes through the first biological trickling filter tower and the second biological trickling filter tower in sequence. This fixed process treatment method lacks flexibility and cannot be dynamically adjusted according to the concentration and composition of the gas, resulting in low treatment efficiency and energy waste. When the gas concentration is low, it still needs to pass through all treatment units, causing unnecessary energy consumption. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a harmful gas monitoring system in an incineration chamber that can flexibly adjust the treatment path according to the gas concentration and composition and reduce energy consumption.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A harmful gas monitoring system in an incineration chamber includes an incineration chamber, a transmission channel, treatment equipment and a control system. The incineration chamber is used for incinerating waste and generating waste gas containing ammonia and methane. The transmission channel is used for transmitting the waste gas from the incineration chamber to the treatment equipment. Treatment equipment, including a circulation layer, a first filtration layer, a biological scrubber, a second filtration layer, a catalytic oxidation reactor, a third filtration layer, a dehumidifier, a detector, and a storage area for storing gas, The storage area is placed between the circulation layer, the first filtration layer, the biological scrubber, the second filtration layer, the catalytic oxidation reactor, the third filtration layer, the dehumidifier, and the detector, The circulation layer, the first filtration layer, the biological scrubber, the second filtration layer, the catalytic oxidation reactor, the third filtration layer, the dehumidifier, and the detector are arranged around the center point of the storage area as a reference point, The first filtration layer is placed between the circulation layer and the biological scrubber, the second filtration layer is placed between the biological scrubber and the catalytic oxidation reactor, the third filtration layer is placed between the catalytic oxidation reactor and the dehumidifier, and the detector is between the circulation layer and the dehumidifier, There are movable channels for gas circulation between the circulation layer, the first filtration layer, the biological scrubber, the second filtration layer, the catalytic oxidation reactor, the third filtration layer, the dehumidifier, the detector, and the storage area, The transfer channel, the circulation layer, the first filtration layer, the biological scrubber, the second filtration layer, the catalytic oxidation reactor, the third filtration layer, the dehumidifier, and the detector are connected by a first valve, Fans, air extractors, and concentration sensors are installed on the transfer channel, the circulation layer, the first filtration layer, the biological scrubber, the second filtration layer, the catalytic oxidation reactor, the third filtration layer, the dehumidifier, the detector, the storage area, and the movable channel, Intake valves and outlet valves are installed on the circulation layer, the first filtration layer, the biological scrubber, the second filtration layer, the catalytic oxidation reactor, the third filtration layer, the dehumidifier, the detector, and the storage area to adjust the treatment path according to the waste gas concentration; A control system, including an induction controller and a gas quality detection sensor, the induction controller is electrically connected to the first valve, the fan, the air extractor, the concentration sensor, the intake valve, the outlet valve, and the gas quality detection sensor, and the gas quality detection sensor is placed inside the detector.

[0007] The present invention is further configured as: an exhaust port is provided inside the detector, a second valve is provided on the exhaust port, and the second valve is electrically connected to the induction controller.

[0008] The present invention is further configured as: an external control panel is connected to the incinerator, the control panel includes a support plate connected to the incinerator and a display screen placed on the support plate, and the display screen is electrically connected to the induction controller.

[0009] The present invention is further configured as: indicator lights are provided on the transfer channel, the circulation layer, the first filtration layer, the biological scrubber, the second filtration layer, the catalytic oxidation reactor, the third filtration layer, the dehumidifier, the detector, the storage area, and the movable channel, and the indicator lights are electrically connected to the induction controller.

[0010] The present invention is further configured such that: a first filter screen is provided on the first filter layer, a second filter screen is provided on the second filter layer, a third filter screen is provided on the third filter layer, and the pore size of the first filter screen is greater than the pore size of the second filter screen which is greater than the pore size of the third filter screen.

[0011] The present invention is further configured such that: a first opening and a second opening are formed in the storage area. The first opening is disposed opposite to the circulation layer, and the second opening is disposed opposite to the first filter layer. The intake valve on the storage area is located at the first opening, and the exhaust valve on the storage area is located at the second opening.

[0012] By adopting the above technical solutions, the beneficial effects of the present invention are as follows: Through the induction controller, the concentration sensor selects the treatment paths for ammonia and methane according to the concentrations of ammonia and methane. Ammonia and methane first enter from the incineration chamber into the transmission channel. When the concentrations of ammonia and methane are high, ammonia and methane sequentially pass through the circulation layer, the first filter layer, the biological scrubber, the second filter layer, the catalytic oxidation reactor, the third filter layer, the dehumidifier and the detector for reflux treatment of the gas. When the concentrations of ammonia and methane are low, ammonia and methane pass from the circulation layer into the activity channel, and ammonia and methane flow in the activity channel. Through the induction controller, Optionally select the circulation layer, the air guide port, the first filter layer, the biological scrubber, the second filter layer, the catalytic oxidation reactor, the third filter layer and the dehumidifier to treat ammonia and methane. After treatment, it returns to the detector. According to the gas quality detection sensor, when the waste gas meets the emission standard, the waste gas is discharged from the exhaust port. When the waste gas does not meet the emission standard, the waste gas re-enters the activity channel for secondary treatment until it meets the standard, thereby flexibly adjusting the treatment path according to the gas concentration and composition and reducing energy consumption. Due to the installation of the storage area, when there is too much ammonia and methane, a part of ammonia and methane can be treated first, and the other part of ammonia and methane is stored in the storage area. When the first part of ammonia and methane is treated, the ammonia and methane in the storage area can flow into the activity channel and be treated. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0014] Incineration chamber 1, transfer channel 2, circulation layer 3, first filtration layer 4, biological scrubber 5, second filtration layer 6, catalytic oxidation reactor 7, third filtration layer 8, dehumidifier 9, detector 10, activity channel 11, storage area 12, first valve 13, fan 14, air extractor 15, concentration sensor 16, intake valve 17, outlet valve 18, gas quality detection sensor 19, second valve 20, support plate 21, display screen 22, induction controller 23, indicator light 24. Detailed implementation manner

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0016] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0017] As Figure 1 shown, the harmful gas monitoring system in the incineration chamber includes an incineration chamber 1, a transfer channel 2, processing equipment and a control system. In the process of burning coal and nitrogen-containing substances in the incineration chamber 1, waste gas containing ammonia and methane is generated. The waste gas is transferred from the incineration chamber 1 to the transfer channel 2, and then to the processing equipment for treatment, and finally the treated waste gas is discharged.

[0018] The incineration chamber 1 is externally connected with a control panel. The control panel includes a support plate 21 fixed to the outer wall of the incineration chamber 1 and a display screen 22 on the support plate 21. The control system includes an induction controller 23 and a gas quality detection sensor 19. The induction controller 23 is electrically connected to both the gas quality detection sensor 19 and the display screen 22. Through the induction controller 23, the data of the waste gas can be displayed on the display screen 22.

[0019] The processing equipment includes a circulation layer 3, a first filtration layer 4, a biological scrubber 5, a second filtration layer 6, a catalytic oxidation reactor 7, a third filtration layer 8, a dehumidifier 9, a detector 10 and a storage area 12. The storage area 12 is placed between the circulation layer 3, the first filtration layer 4, the biological scrubber 5, the second filtration layer 6, the catalytic oxidation reactor 7, the third filtration layer 8, the dehumidifier 9 and the detector 10. The flow layer 3, the first filter layer 4, the biological scrubber 5, the second filter layer 6, the catalytic oxidation reactor 7, the third filter layer 8, the dehumidifier 9, and the detector 10 are arranged around the center point of the storage area 12. So that the flow layer 3, the first filter layer 4, the biological scrubber 5, the second filter layer 6, the catalytic oxidation reactor 7, the third filter layer 8, the dehumidifier 9, and the detector 10 are in a ring shape. The transfer channel 2, the flow layer 3, the first filter layer 4, the biological scrubber 5, the second filter layer 6, the catalytic oxidation reactor 7, the third filter layer 8, the dehumidifier 9, and the detector 10 are connected by the first valve 13. Through the induction controller 23, the opening and closing of the first valve 13 can be controlled, so that the waste gas can better flow into the detector 10 in sequence from the transfer channel 2, the flow layer 3, the first filter layer 4, the biological scrubber 5, the second filter layer 6, the catalytic oxidation reactor 7, the third filter layer 8, and the dehumidifier 9. So that the first flow path of the waste gas is: the waste gas goes from the incineration chamber 1 through the transfer channel 2 into the flow layer 3, and then passes through the first filter layer 4, the biological scrubber 5, the second filter layer 6, the catalytic oxidation reactor 7, the third filter layer 8, and the dehumidifier 9 in sequence, and finally into the detector 10.

[0020] There is an activity channel 11 between the flow layer 3, the first filter layer 4, the biological scrubber 5, the second filter layer 6, the catalytic oxidation reactor 7, the third filter layer 8, the dehumidifier 9, the detector 10 and the storage area 12. Intake valves 17 and outlet valves 18 are installed on the flow layer 3, the first filter layer 4, the biological scrubber 5, the second filter layer 6, the catalytic oxidation reactor 7, the third filter layer 8, the dehumidifier 9, the detector 10, and the storage area 12. Through the induction controller 23, the opening and closing of the intake valves 17 and the outlet valves 18 can be controlled to achieve flexible scheduling of the waste gas.

[0021] So that the second flow path of the waste gas is that the waste gas goes from the incineration chamber 1 through the transfer channel 2 into the flow layer 3, and then enters the activity channel 11. Through the induction controller 23, the flow layer 3, the first filter layer 4, the biological scrubber 5, the second filter layer 6, the catalytic oxidation reactor 7, the third filter layer 8, and the dehumidifier 9 are selected to be opened. The waste gas enters and is processed, and after processing, it returns to the activity channel 11. The flow layer 3, the first filter layer 4, the biological scrubber 5, the second filter layer 6, the catalytic oxidation reactor 7, the third filter layer 8, and the dehumidifier 9 are selected to be opened again, and the waste gas is processed again. After processing, it returns to the activity channel 11, and so on. The processed waste gas goes into the detector 10.

[0022] Fans 14, air extractors 15, and concentration sensors 16 are installed on the transmission channel 2, the circulation layer 3, the first filter layer 4, the biological scrubber 5, the second filter layer 6, the catalytic oxidation reactor 7, the third filter layer 8, the dehumidifier 9, the detector 10, the storage area 12, and the activity channel 11. The air extractor 15 sucks the waste gas from the previous treatment area, and the fan 14 discharges the treated waste gas into the next treatment area. The concentration sensor 16 can accurately measure the concentration of the waste gas in the waste gas.

[0023] An exhaust port is provided in the detector 10, and a second valve 20 is installed on the exhaust port. Through the induction controller 23, the opening and closing of the second valve 20 can be controlled. The gas quality detection sensor 19 is in the detector 10, and the gas quality detection sensor 19 detects the waste gas in the detector 10. When the waste gas meets the emission standard, the induction controller 23 senses the opening of the second valve 20, and the waste gas is discharged from the exhaust port to the external atmospheric environment, ensuring the smooth discharge of the waste gas. When the waste gas does not meet the emission standard, the waste gas is returned to the activity channel 11 for transmission and treatment.

[0024] Indicator lights 24 are provided on the transmission channel 2, the circulation layer 3, the first filter layer 4, the biological scrubber 5, the second filter layer 6, the catalytic oxidation reactor 7, the third filter layer 8, the dehumidifier 9, the detector 10, the storage area 12, and the activity channel 11. Through the induction controller 23, the opening and closing of the indicator lights 24 can be controlled. The indicator lights 24 are turned on when the waste gas passes through and turned off when the waste gas passes through.

[0025] The first filter layer 4 removes large particulate impurities in ammonia and methane. The first filter screen coarsely filters ammonia and methane to achieve the first filtration. The biological scrubber 5 uses microorganisms to degrade and convert the organic matter in ammonia and methane to remove ammonia and methane. The second filter screen on the second filter layer 6 is used to remove particulate matter and suspended matter in ammonia and methane to prevent them from entering the subsequent process and causing blockage or damage, achieving the second filtration. The catalytic oxidation reactor 7 uses a catalyst to oxidize and decompose the organic matter in the waste gas and convert it into harmless substances. The third filter screen on the third filter layer 8 further removes fine particulate matter and organic matter residues in the waste gas to ensure the cleanliness of the discharged gas and achieve the third filtration. The dehumidifier 9 is used to remove the moisture in the waste gas to prevent it from affecting the effect and stability of the subsequent treatment unit, enabling a filtration process from coarse filtration to washing filtration through three filtrations.

[0026] The storage area 12 is provided with a first opening and a second opening. The first opening is arranged opposite to the circulation layer 3, and the second opening is arranged opposite to the first filter layer 4. The intake valve 17 on the storage area 12 is placed at the first opening, and the exhaust valve 18 on the storage area 12 is placed at the second opening. When there is too much waste gas in the circulation layer 3, through the induction controller 23, the exhaust valve 18 on the circulation layer 3 is opened, and the waste gas is sent into the activity channel 11 and finally into the storage area 12 for storage.

[0027] Working principle: The waste gas is drawn from the incineration chamber 1 into the transfer channel 2 by the air extractor 15 in the transfer channel 2, and the concentration sensor 16 senses the concentration of the waste gas at this time. When the concentration of the waste gas is high, 1. Through the induction controller 23, the fan 14 on the transfer channel 2, the first valve 13 between the transfer channel 2 and the circulation layer 3, and the air extractor 15 in the transfer layer are opened, and the waste gas is circulated into the circulation layer 3. 2. Through the induction controller 23, the fan 14 on the circulation layer 3, the first valve 13 between the first filter layer 4 and the circulation layer 3, and the air extractor 15 in the first filter layer are opened, and the waste gas is circulated into the first filter layer 4 for the first filtration treatment of the waste gas. 3. Through the induction controller 23, the fan 14 on the first filter layer 4, the first valve 13 between the first filter layer 4 and the biological scrubber 5, and the air extractor 15 in the biological scrubber 5 are opened, and the waste gas is circulated into the biological scrubber 5 for the first elimination treatment of the waste gas. 4. Through the induction controller 23, the fan 14 on the biological scrubber 5, the first valve 13 between the second filter layer 6 and the biological scrubber 5, and the air extractor 15 in the second filter layer are opened, and the waste gas is circulated into the second filter layer 6 for the second filtration treatment of the waste gas. 5. Through the induction controller 23, the fan 14 on the second filter layer 6, the first valve 13 between the second filter layer 6 and the catalytic oxidation reactor 7, and the air extractor 15 in the catalytic oxidation reactor 7 are opened, and the waste gas is circulated into the catalytic oxidation reactor 7 for the second elimination treatment of the waste gas. 6. Through the induction controller 23, the fan 14 on the catalytic oxidation reactor 7, the first valve 13 between the third filter layer 8 and the catalytic oxidation reactor 7, and the air extractor 15 in the third filter layer are opened, and the waste gas is circulated into the third filter layer 8 for the third filtration treatment of the waste gas. 7. Through the induction controller 23, the fan 14 on the third filter layer 8, the first valve 13 between the third filter layer 8 and the dehumidifier 9, and the air extractor 15 in the dehumidifier 9 are opened, and the waste gas is circulated into the dehumidifier 9 to remove the moisture after the elimination treatment. 8. Through the induction controller 23, the fan 14 on the dehumidifier 9, the first valve 13 between the detector 10 and the dehumidifier 9, and the air extractor 15 in the detector 10 are turned on, and the waste gas flows into the detector 10.

[0028] When the concentration of the waste gas is low, 1. Through the induction controller 23, the fan 14 on the transmission channel 2, the first valve 13 between the transmission channel 2 and the circulation layer 3, and the air extractor 15 in the transmission layer are turned on, and the waste gas flows into the circulation layer 3; 2. Through the induction controller 23, the air outlet valve 18 on the circulation layer 3 is turned on, and the waste gas flows into the activity channel 11; 3. Through the induction controller 23, any one of the intake valves 17 of the circulation layer 3, the first filter layer 4, the biological scrubber 5, the second filter layer 6, the catalytic oxidation reactor 7, the third filter layer 8, and the dehumidifier 9 is selectively turned on to enter and treat the waste gas inside. After treatment, it returns to the activity channel 11 through the air outlet valve 18; 4. Through the induction controller 23, any one of the intake valves 17 of the circulation layer 3, the first filter layer 4, the biological scrubber 5, the second filter layer 6, the catalytic oxidation reactor 7, the third filter layer 8, and the dehumidifier 9 is selectively turned on again to enter and treat the waste gas inside. After treatment, it returns to the activity channel 11 through the air outlet valve 18; 5. And so on, the circulation layer 3, the first filter layer 4, the biological scrubber 5, the second filter layer 6, the catalytic oxidation reactor 7, the third filter layer 8, and the dehumidifier 9 are selectively turned on according to the concentration of the waste gas; 6. Through the induction controller 23, the fan 14 on the activity channel 11, the intake valve 17 on the detector 10, and the air extractor 15 in the detector 10 are turned on, and the waste gas flows into the detector 10; For the waste gas in the detector 10, the gas quality detection sensor 19 detects the waste gas. The qualified waste gas turns on the second valve 20 through the induction controller 23 and discharges the waste gas from the exhaust port. The unqualified gas turns on the air outlet valve 18 on the detector 10, the fan 14 on the detector 10, and the air extractor 15 in the activity channel 11 through the induction controller 23, and the waste gas flows into the activity channel 11 to perform secondary treatment on the waste gas again until it is qualified, thereby flexibly adjusting the treatment path according to the gas concentration and composition and reducing energy consumption.

[0029] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A harmful gas monitoring system in an incineration room, characterized in that: It includes an incineration chamber (1), a transmission channel (2), a processing device and a control system. An incineration chamber (1) for incinerating waste and generating exhaust gas containing ammonia and methane; A transmission channel (2) for transmitting the waste gas from the incineration chamber (1) to a treatment device; The treatment equipment comprises a circulation layer (3), a first filter layer (4), a biological scrubber (5), a second filter layer (6), a catalytic oxidation reactor (7), a third filter layer (8), a dehumidifier (9), a detector (10) and a storage area (12) for storing gas, The storage area (12) is disposed between the circulation layer (3), the first filter layer (4), the biological scrubber (5), the second filter layer (6), the catalytic oxidation reactor (7), the third filter layer (8), the dehumidifier (9) and the detector (10). The circulation layer (3), the first filter layer (4), the biological scrubber (5), the second filter layer (6), the catalytic oxidation reactor (7), the third filter layer (8), the dehumidifier (9) and the detector (10) are surrounded by the central point of the storage area (12) as a reference point. The first filter layer (4) is placed between the circulation layer (3) and the biological scrubber (5), the second filter layer (6) is placed between the biological scrubber (5) and the catalytic oxidation reactor (7), the third filter layer (8) is placed between the catalytic oxidation reactor (7) and the dehumidifier (9), and the detector (10) is between the circulation layer (3) and the dehumidifier (9). An active channel (11) for gas circulation is provided between the circulation layer (3), the first filter layer (4), the biological scrubber (5), the second filter layer (6), the catalytic oxidation reactor (7), the third filter layer (8), the dehumidifier (9), the detector (10) and the storage area (12). The transmission channel (2), the circulation layer (3), the first filter layer (4), the biological scrubber (5), the second filter layer (6), the catalytic oxidation reactor (7), the third filter layer (8), the dehumidifier (9) and the detector (10) are connected via a first valve (13). A fan (14), an exhaust fan (15) and a concentration sensor (16) are installed on the transmission channel (2), the circulation layer (3), the first filter layer (4), the biological scrubber (5), the second filter layer (6), the catalytic oxidation reactor (7), the third filter layer (8), the dehumidifier (9), the detector (10), the storage area (12) and the active channel (11). An air inlet valve (17) and an air outlet valve (18) are installed on the circulation layer (3), the first filter layer (4), the biological scrubber (5), the second filter layer (6), the catalytic oxidation reactor (7), the third filter layer (8), the dehumidifier (9), the detector (10) and the storage area (12) so as to adjust the treatment path according to the exhaust gas concentration; The control system comprises a sensing controller (23) and a gas quality detection sensor (19); the sensing controller (23) is electrically connected to a first valve (13), a fan (14), an exhaust fan (15), a concentration sensor (16), an air inlet valve (17), an air outlet valve (18) and a gas quality detection sensor (19); and the gas quality detection sensor (19) is disposed in a detector (10).

2. A harmful gas monitoring system in an incineration chamber according to claim 1, characterized in that: An exhaust port is provided in the detector (10), and a second valve (20) is provided on the exhaust port. The second valve (20) is electrically connected to the sensing controller (23).

3. A harmful gas monitoring system in an incineration chamber according to claim 1, characterized in that: The incineration chamber (1) is externally connected to a control panel, the control panel comprising a support plate (21) connected to the incineration chamber (1) and a display screen (22) disposed on the support plate (21), the display screen (22) being electrically connected to a sensor controller (23).

4. A harmful gas monitoring system in an incineration chamber according to claim 1, characterized in that: The transmission channel (2), the circulation layer (3), the first filter layer (4), the biological scrubber (5), the second filter layer (6), the catalytic oxidation reactor (7), the third filter layer (8), the dehumidifier (9), the detector (10), the storage area (12) and the active channel (11) are all provided with an indicator light (24), and the indicator light (24) is electrically connected to the sensor controller (23).

5. The harmful gas monitoring system in an incineration chamber according to claim 1, characterized in that: A first filter screen is provided on the first filter layer (4), a second filter screen is provided on the second filter layer (6), and a third filter screen is provided on the third filter layer (8); the aperture of the first filter screen is larger than the aperture of the second filter screen, which is larger than the aperture of the third filter screen.

6. A harmful gas monitoring system in an incineration chamber according to claim 1, characterized in that: The storage area (12) is provided with a first opening and a second opening, the first opening being arranged opposite to the circulation layer (3), and the second opening being arranged opposite to the first filter layer (4), the air inlet valve (17) on the storage area (12) being arranged at the first opening, and the air outlet valve (18) on the storage area (12) being arranged at the second opening.

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