Heating catalytic decomposition device for organic waste gas

Abstract

The invention relates to the technical field of organic waste gas catalytic treatment, in particular to an organic waste gas heating catalytic decomposition device which comprises a rack, a waste gas inlet and outlet mechanism is mounted at the inner top of the rack, a plate heat exchanger is mounted at the inner top of the rack, and a waste gas diversion mechanism is mounted in the rack. The device comprises a rack, a waste gas distribution mechanism is installed in the rack, a catalytic mechanism is installed in the rack, a heater is installed in the catalytic mechanism, a first fan is installed at the inner bottom of the rack, the first fan is installed between the waste gas distribution mechanism and the catalytic mechanism, an air mixing mechanism is installed at the inner bottom of the rack, and the air mixing mechanism is installed below the waste gas distribution mechanism. And a second fan is mounted at the inner bottom of the rack and is mounted between the waste gas inlet and outlet mechanism and the air mixing mechanism. The invention provides a heating catalytic decomposition device capable of fully utilizing heat in gas after waste gas is subjected to catalytic treatment.

Description

Technical Field

[0001] The present invention relates to the field of catalytic treatment of organic waste gas, and in particular to a heating catalytic decomposition device for organic waste gas. Background Art

[0002] Organic waste gas is emitted during industrial production and contains volatile organic compounds (VOCs). In order to convert organic matter into harmless substances, it is necessary to catalytically decompose the organic waste gas before it is discharged. Through the action of the catalyst, the organic matter is converted into carbon dioxide and water at a lower temperature.

[0003] The main principle of catalytic decomposition of organic waste gas is to convert it into harmless carbon dioxide and water under the action of oxygen and catalyst. The organic waste gas needs to be heated before the catalytic reaction. The high temperature can increase the catalytic reaction rate. After the catalytic reaction, the organic waste gas will be converted into high-temperature harmless gas. At this time, the gas contains a lot of heat. If it is discharged directly, it will not only affect the environment, but also cause heat waste. Summary of the Invention

[0004] In view of this, the present invention provides a heating catalytic decomposition device for organic waste gas, and the main technical problem to be solved is: to provide a heating catalytic decomposition device that can fully utilize the internal heat of the gas after catalytic treatment of the waste gas.

[0005] In order to achieve the above-mentioned objectives, the present invention adopts the following technical scheme: a heating and catalytic decomposition device for organic waste gas, comprising a frame, an exhaust gas inlet and outlet mechanism is installed on the inner top of the frame, a plate heat exchanger is installed on the inner top of the frame, the plate heat exchanger is installed on the left side of the exhaust gas inlet and outlet mechanism, an exhaust gas diversion mechanism is installed inside the frame, the exhaust gas diversion mechanism is installed on the left side of the plate heat exchanger, a catalytic mechanism is installed inside the frame, the catalytic mechanism is installed on the left side of the exhaust gas diversion mechanism, a heater is installed inside the catalytic mechanism, a first fan is installed on the inner bottom of the frame, the first fan is installed between the exhaust gas diversion mechanism and the catalytic mechanism, an air mixing mechanism is installed on the inner bottom of the frame, the air mixing mechanism is installed below the exhaust gas diversion mechanism, a second fan is installed on the inner bottom of the frame, the second fan is installed between the exhaust gas inlet and outlet mechanism and the air mixing mechanism.

[0006] By adopting the above technical solution, when in use, the exhaust gas enters the hollow cavity of the heat exchange plate in the plate heat exchanger from the exhaust air inlet cavity in the exhaust gas inlet and outlet mechanism for preheating, and then enters the exhaust gas inlet cavity in the exhaust gas diversion mechanism from the plate heat exchanger. In the exhaust gas diversion mechanism, the exhaust gas will first enter the catalytic mechanism, be heated by the heater, and contact with the catalyst in the catalytic mechanism to complete the catalytic decomposition, converting the exhaust gas into high-temperature harmless gas. The high-temperature harmless gas will enter the exhaust gas discharge cavity of the exhaust gas diversion mechanism. At this time, the high-temperature harmless gas will be diverted in the exhaust gas discharge cavity, and some of the high-temperature harmless gas will enter The exhaust gas enters the gap between the heat exchange plates in the plate heat exchanger, preheats the exhaust gas entering the hollow cavity of the heat exchange plates in the plate heat exchanger, and then is discharged from the high-temperature discharge cavity in the exhaust gas inlet and outlet mechanism. Another part of the high-temperature harmless gas will enter the air mixing mechanism, and then reach the second fan and be discharged from the desorption outlet cavity, which can achieve the effect of desorption of organic waste gas on the zeolite on the inlet wheel (organic waste gas is generally adsorbed by zeolite, and after the adsorption is completed, the organic waste gas is desorbed from the zeolite by high temperature). The equipment can catalytically treat the organic waste gas and make full use of the heat in the harmless gas after treatment.

[0007] As a further description of the above technical solution:

[0008] The plate heat exchanger is composed of a plurality of heat exchange plates with hollow cavities inside, and gaps are present between the plurality of heat exchange plates.

[0009] By adopting the above technical solution, the uncatalytically treated exhaust gas passes through the hollow cavity of the heat exchange plate and enters the catalytic mechanism for catalytic treatment. The high-temperature harmless gas after catalytic treatment passes through the gaps between the heat exchange plates to preheat the exhaust gas in the hollow cavity of the heat exchange plate.

[0010] As a further description of the above technical solution:

[0011] The exhaust gas inlet and outlet mechanism includes an exhaust gas inlet and outlet chamber, an exhaust gas inlet chamber is provided inside the exhaust gas inlet and outlet chamber, an exhaust gas inlet port is installed on the side wall of the exhaust gas inlet chamber, a high-temperature discharge chamber is provided inside the exhaust gas inlet and outlet chamber, a high-temperature discharge port is installed on the side wall of the high-temperature discharge chamber, the exhaust gas inlet chamber is communicated with the hollow cavity of multiple heat exchange plates in the plate heat exchanger, the high-temperature discharge chamber is communicated with the gap between the heat exchange plates in the plate heat exchanger, a desorption outlet chamber is provided inside the exhaust gas inlet and outlet chamber, a desorption outlet port is installed on the side wall of the desorption outlet chamber, a first connecting pipe is fixedly connected to the bottom of the desorption outlet chamber, and the first connecting pipe is fixedly connected to the outlet of the second fan.

[0012] By adopting the technical scheme, the waste gas enters from the waste gas inlet cavity, and then enters the hollow cavities of the multiple heat exchange plates in the plate heat exchanger for preheating treatment. Part of the high-temperature harmless waste gas after catalytic treatment is discharged from the high-temperature discharge cavity. Another part of the high-temperature harmless waste gas after catalytic treatment is discharged from the desorption outlet cavity into the inlet runner, so as to desorb the waste gas in the zeolite in the inlet runner.

[0013] As a further description of the above technical scheme:

[0014] The waste gas shunting mechanism comprises a waste gas shunting chamber, an internal waste gas discharge cavity, a gap between the waste gas discharge cavity and the heat exchange plates in the plate heat exchanger, an internal waste gas discharge cavity and a waste gas mixing mechanism, an internal waste gas inlet cavity, a hollow cavity of the multiple heat exchange plates in the plate heat exchanger, a side wall of the waste gas inlet cavity, an air inlet channel, an internal catalytic mechanism, a second connecting pipe between the waste gas inlet cavity and the waste gas discharge cavity, an internal circulating valve, a gas supplement valve, a third connecting pipe, and a third connecting pipe.

[0015] By adopting the above technical scheme, the waste gas enters the waste gas inlet cavity, and then enters the air inlet channel, and then enters the catalytic mechanism for heating and catalytic treatment. The waste gas after heating and catalytic treatment is converted into high-temperature harmless gas, which enters the waste gas discharge cavity. At this time, the high-temperature harmless gas is divided into three parts. The first part of the high-temperature harmless gas passes through the gap between the heat exchange plates to preheat the waste gas in the hollow cavities of the heat exchange plates. The second part of the high-temperature harmless gas enters the air mixing mechanism, and then reaches the desorption outlet cavity, and then enters the inlet runner to desorb the waste gas on the zeolite in the inlet runner. The third part of the high-temperature harmless gas passes through the second connecting pipe back to the waste gas inlet cavity to reduce the concentration of the waste gas and increase the temperature of the waste gas, which is beneficial to the catalytic treatment of the waste gas in the catalytic mechanism. The air (oxygen) can be supplemented into the waste gas inlet cavity through the gas supplement valve, so as to facilitate the catalytic treatment of the waste gas in the catalytic mechanism.

[0016] As a further description of the above technical scheme:

[0017] The catalytic mechanism includes a catalytic chamber, which is connected to the air inlet channel. A steel grating is fixedly connected to the inside of the catalytic chamber, and a catalyst placement cavity is formed above the steel grating. A perforated plate is fixedly connected to the inside of the catalytic chamber, and the perforated plate is located below the steel grating. An air balancing plate is fixedly connected to the inside of the catalytic chamber, and there are multiple air balancing plates, which are located below the perforated plate. An exhaust channel is provided inside the catalytic chamber, and a fourth connecting pipe is fixedly connected to the side wall of the catalytic chamber, and the fourth connecting pipe is connected to the air inlet of the first fan. The exhaust channel is connected to the air inlet of the first fan through the fourth connecting pipe, and an explosion vent is installed on the top of the catalytic chamber.

[0018] By adopting the above technical solution, after the exhaust gas enters the catalyst chamber from the air inlet channel, it will first contact the air equalizing plate, which will evenly disperse the exhaust gas into the catalyst chamber. The exhaust gas then passes through the orifice plate and reaches the heater. At this time, the exhaust gas will be heated to a temperature suitable for catalytic treatment, and then continue to rise to the catalyst placement cavity on the steel grating, where it will contact and react with the catalyst, and finally convert the exhaust gas into harmless gas. Under the action of the first fan, negative pressure will be generated at the exhaust ventilation, and the harmless gas will reach the exhaust channel from the catalyst placement cavity, and then enter the exhaust gas discharge cavity.

[0019] As a further description of the above technical solution:

[0020] The heater is composed of a plurality of electric heating rods, and the plurality of electric heating rods are located between the steel grating and the orifice plate.

[0021] By adopting the above technical solution, the exhaust gas can be heated by the heater so that the exhaust gas can be heated to the temperature of the catalytic reaction.

[0022] As a further description of the above technical solution:

[0023] The air mixing mechanism includes an air mixing chamber, a connecting pipe is installed between the air mixing chamber and the exhaust gas discharge chamber, a regulating valve is installed inside the connecting pipe, a fifth connecting pipe is fixedly connected to the back of the air mixing chamber, the fifth connecting pipe is fixedly connected to the air inlet of the second fan, and an air inlet valve is installed on the top of the air mixing chamber.

[0024] By adopting the above technical solution, some high-temperature harmless gas will enter the air mixing chamber from the regulating valve, and air will enter from the air inlet valve at the top of the air mixing chamber, mix with the high-temperature harmless gas to form gas of suitable temperature, and then pass through the fifth connecting pipe to reach the second fan.

[0025] By means of the above technical solution, the heating and catalytic decomposition device for organic waste gas of the present invention has at least the following beneficial effects:

[0026] 1. Compared with the prior art, the organic waste gas heating catalytic decomposition device can catalytically treat waste gas, convert waste gas into high-temperature harmless gas, preheat waste gas in the plate heat exchanger by using high-temperature harmless gas, and fully utilize the heat in the high-temperature harmless gas.

[0027] 2. Compared with the prior art, the organic waste gas heating catalytic decomposition device can make part of the high-temperature harmless gas enter the air mixing mechanism, then reach the desorption air outlet cavity, and then enter the inlet runner to desorb and treat waste gas on the zeolite in the inlet runner. Another part of the high-temperature harmless gas passes through the second connecting pipe to return to the waste gas inlet cavity, reduces the waste gas concentration, increases the waste gas temperature, and is beneficial to catalytic treatment of waste gas in the catalytic mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The overall structure schematic diagram of the present application is provided.

[0029] Figure 2 The first perspective internal structure schematic diagram of the present application is provided.

[0030] Figure 3 The second perspective internal structure schematic diagram of the present application is provided.

[0031] Figure 4 The third perspective internal structure schematic diagram of the present application is provided.

[0032] Figure 5 The fourth perspective internal structure schematic diagram of the present application is provided.

[0033] Figure 6 The first perspective internal structure cross-sectional view of the present application is provided.

[0034] Figure 7 The second perspective internal structure cross-sectional view of the present application is provided.

[0035] Figure 8 The third perspective internal structure cross-sectional view of the present application is provided.

[0036] Figure 9 The fourth perspective internal structure cross-sectional view of the present application is provided.

[0037] LEGEND:

[0038] 1. Frame; 2. Exhaust gas inlet and outlet mechanism; 201. Exhaust gas inlet and outlet chamber; 202. Exhaust gas inlet chamber; 203. High-temperature discharge chamber; 204. Desorption outlet chamber; 205. First connecting pipe; 3. Plate heat exchanger; 4. Exhaust gas diversion mechanism; 401. Exhaust gas diversion chamber; 402. Exhaust gas discharge chamber; 403. Exhaust gas inlet chamber; 404. Air inlet channel; 405. Second connecting pipe; 406. Air supply valve; 407. Third connecting pipe; 5. Catalytic mechanism; 501. Catalytic chamber; 502. Steel grating; 503. Orifice plate; 504. Air equalizing plate; 505. Exhaust channel; 506. Fourth connecting pipe; 6. Heater; 7. First fan; 8. Air mixing mechanism; 801. Air mixing chamber; 802. Regulating valve; 803. Fifth connecting pipe; 804. Air inlet valve; 9. Second fan. DETAILED DESCRIPTION

[0039] Reference Figures 1-9The present invention provides a heating and catalytic decomposition device for organic waste gas: it includes a frame 1, an exhaust gas inlet and outlet mechanism 2 is installed on the inner top of the frame 1, a plate heat exchanger 3 is installed on the inner top of the frame 1, the plate heat exchanger 3 is composed of a plurality of heat exchange plates with hollow cavities inside, and there are gaps between the plurality of heat exchange plates. The uncatalytically treated exhaust gas passes through the hollow cavities of the heat exchange plates and enters the catalytic mechanism 5 for catalytic treatment. The high-temperature harmless gas after catalytic treatment passes through the gaps between the heat exchange plates to preheat the exhaust gas in the hollow cavities of the heat exchange plates. The plate heat exchanger 3 is installed on the left side of the exhaust gas inlet and outlet mechanism 2, and an exhaust gas diversion mechanism 4 is installed inside the frame 1. The exhaust gas diversion mechanism 4 is installed on the plate heat exchanger On the left side of the exhaust gas diversion mechanism 3, a catalytic mechanism 5 is installed inside the frame 1, and the catalytic mechanism 5 is installed on the left side of the exhaust gas diversion mechanism 4. A heater 6 is installed inside the catalytic mechanism 5. A first fan 7 is installed at the inner bottom of the frame 1, and the first fan 7 is installed between the exhaust gas diversion mechanism 4 and the catalytic mechanism 5. A mixing mechanism 8 is installed at the inner bottom of the frame 1, and the mixing mechanism 8 is installed below the exhaust gas diversion mechanism 4. A second fan 9 is installed at the inner bottom of the frame 1, and the second fan 9 is installed between the exhaust gas inlet and outlet mechanism 2 and the mixing mechanism 8. When in use, the exhaust gas enters the hollow cavity of the heat exchange plate in the plate heat exchanger 3 from the exhaust gas inlet cavity 202 in the exhaust gas inlet and outlet mechanism 2 for preheating, and then is discharged from the plate heat exchanger 3. The exhaust gas from the heat exchanger 3 enters the exhaust gas diversion mechanism 4 into the chamber 403. In the exhaust gas diversion mechanism 4, the exhaust gas will first enter the catalytic mechanism 5, be heated by the heater 6, and contact the catalyst in the catalytic mechanism 5 to complete the catalytic decomposition, converting the exhaust gas into high-temperature harmless gas. The high-temperature harmless gas will enter the exhaust gas discharge chamber 402 of the exhaust gas diversion mechanism 4. At this time, the high-temperature harmless gas will be diverted in the exhaust gas discharge chamber 402. Part of the high-temperature harmless gas will enter the gap between the heat exchange plates in the plate heat exchanger 3, preheating the exhaust gas entering the hollow cavity of the heat exchange plate in the plate heat exchanger 3, and then be discharged from the high-temperature discharge chamber 203 in the exhaust gas inlet and outlet mechanism 2. The organic waste gas is generally adsorbed by zeolite (the inlet wheel is not shown, and the zeolite is an internal component of the inlet wheel. The rotation of the inlet wheel drives the zeolite to rotate, so that the zeolite can adsorb the organic waste gas in the gas, and then the zeolite is heated to desorb the organic waste gas from the zeolite, completing the concentration of the organic waste gas). After the adsorption is completed, the organic waste gas is desorbed from the zeolite by high temperature. The equipment can catalytically treat the organic waste gas and make full use of the heat in the harmless gas after treatment.

[0040] The exhaust gas inlet and outlet mechanism 2 includes an exhaust gas inlet and outlet chamber 201, and an exhaust gas inlet chamber 202 is provided inside the exhaust gas inlet and outlet chamber 201. The exhaust gas inlet chamber 202 is connected to the hollow cavity of multiple heat exchange plates in the plate heat exchanger 3. The exhaust gas enters from the exhaust gas inlet chamber 202 and then enters the hollow cavity of multiple heat exchange plates in the plate heat exchanger 3 for preheating treatment. The side wall of the exhaust gas inlet chamber 202 is equipped with an exhaust gas inlet port, and a high-temperature discharge chamber 203 is provided inside the exhaust gas inlet and outlet chamber 201. The side wall of the high-temperature discharge chamber 203 is equipped with a high-temperature discharge port. The high-temperature discharge chamber 203 is connected to the gap between the heat exchange plates in the plate heat exchanger 3, and part of the high-temperature harmless exhaust gas after catalytic treatment is discharged from the high-temperature The exhaust gas is discharged from the discharge chamber 203 and enters the gap between the heat exchange plates to preheat the exhaust gas in the hollow cavity of the heat exchange plates. A desorption air outlet chamber 204 is provided inside the exhaust gas inlet and outlet chamber 201. The side wall of the desorption air outlet chamber 204 is installed with a desorption air outlet. The bottom of the desorption air outlet chamber 204 is fixedly connected to a first connecting pipe 205, and the first connecting pipe 205 is fixedly connected to the air outlet of the second fan 9. Another part of the high-temperature harmless exhaust gas after catalytic treatment is discharged from the desorption air outlet chamber 204 into the inlet wheel through the second fan 9, and the exhaust gas in the zeolite on the inlet wheel is desorbed, so that the exhaust gas in the zeolite can enter the equipment from the exhaust air inlet chamber 202 for catalytic treatment after desorption.

[0041] The exhaust gas diversion mechanism 4 includes an exhaust gas diversion chamber 401, an exhaust gas inlet chamber 403 is provided inside the exhaust gas diversion chamber 401, the exhaust gas inlet chamber 403 is connected to the hollow cavity of multiple heat exchange plates in the plate heat exchanger 3, the side wall of the exhaust gas inlet chamber 403 is fixedly connected to an air inlet channel 404, the air inlet channel 404 is connected to the interior of the catalytic mechanism 5, and the preheated exhaust gas enters the exhaust gas inlet chamber 403 and enters the air inlet channel 404, and then enters the catalytic mechanism 5. The exhaust gas is heated and catalytically treated in the structure 5. The exhaust gas after heating and catalysis will be converted into high-temperature harmless gas. The exhaust gas diversion chamber 401 is provided with an exhaust gas discharge chamber 402 inside. The exhaust gas discharge chamber 402 is connected to the gap between the heat exchange plates in the plate heat exchanger 3. The exhaust gas discharge chamber 402 is connected to the interior of the air mixing mechanism 8. The bottom of the exhaust gas discharge chamber 402 is fixedly connected to a third connecting pipe 407. The bottom of the third connecting pipe 407 is fixedly connected to the air outlet of the first fan 7. The high-temperature harmless gas will enter When the exhaust gas enters the exhaust gas discharge chamber 402, the high-temperature harmless gas will be divided into three parts. The first part of the high-temperature harmless gas will pass through the gap between the heat exchange plates to preheat the exhaust gas in the hollow cavity of the heat exchange plates. The second part of the high-temperature harmless gas will enter the air mixing mechanism 8, and then reach the desorption air outlet chamber 204, and then enter the inlet wheel to desorb the exhaust gas on the zeolite in the inlet wheel. A second connecting pipe 40 is fixedly connected between the exhaust gas inlet chamber 403 and the exhaust gas discharge chamber 402. 5. An internal circulation valve is provided inside the second connecting pipe 405. The third part of the high-temperature harmless gas will pass through the second connecting pipe 405 and return to the exhaust gas inlet chamber 403, thereby reducing the exhaust gas concentration and increasing the exhaust gas temperature, which is beneficial for the catalytic treatment of the exhaust gas in the catalytic mechanism 5. An air supply valve 406 is installed on the side wall of the exhaust gas inlet chamber 403. The air supply valve 406 is a manual valve. When the air supply valve 406 is opened, air oxygen can be added to the exhaust gas inlet chamber 403, thereby facilitating the catalytic treatment of the exhaust gas in the catalytic mechanism 5.

[0042] The catalytic mechanism 5 includes a catalytic chamber 501, which is connected to the air inlet channel 404. A steel grating 502 is fixedly connected to the inside of the catalytic chamber 501. A catalyst placement cavity is formed above the steel grating 502. A catalyst is arranged in the catalyst placement cavity. The inside of the catalyst includes one or more of Pt, Pd, MnO, CeO, etc., which catalytically decomposes the exhaust gas. The inside of the catalytic chamber 501 is fixedly connected to a perforated plate 503, which is located below the steel grating 502. The inside of the catalytic chamber 501 is fixedly connected to an air distribution plate 504. There are multiple air distribution plates 504, which are located below the perforated plate 503. An exhaust channel 505 is arranged inside the catalytic chamber 501. A fourth connecting pipe 506 is fixedly connected to the side wall of the catalytic chamber 501. The fourth connecting pipe 506 is connected to the air inlet of the first fan 7. The exhaust channel 505 is connected to the air inlet of the first fan 7 through the fourth connecting pipe 506. The exhaust gas is heated and heated to a temperature suitable for catalytic treatment, and then continues to rise to the catalyst placement cavity on the steel grating 502, contacts with the catalyst, and finally converts the exhaust gas into harmless gas. Under the action of the first fan 7, a negative pressure is generated at the exhaust ventilation 505, and the harmless gas reaches the exhaust channel 505 from the catalyst placement cavity, and then enters the exhaust gas discharge cavity 402. An explosion vent is installed on the top of the catalyst chamber 501 to prevent the internal air pressure of the catalyst chamber 501 from being too high.

[0043] The air mixing mechanism 8 includes an air mixing bin 801, and a connecting pipe is installed between the air mixing bin 801 and the exhaust gas discharge chamber 402. A regulating valve 802 is installed inside the connecting pipe. The regulating valve 802 is a manual valve used to adjust the flow rate of high-temperature harmless gas entering the air mixing bin 801. The back of the air mixing bin 801 is fixedly connected to a fifth connecting pipe 803, and the fifth connecting pipe 803 is fixedly connected to the air inlet of the second fan 9. An air inlet valve 804 is installed on the top of the air mixing bin 801. The air inlet valve 804 is a manual valve. Opening the air inlet valve 804 can replenish air into the air mixing bin 801. Some high-temperature harmless gas will enter the air mixing bin 801 from the regulating valve 802, and air will enter from the air inlet valve 804 on the top of the air mixing bin 801, mix with the high-temperature harmless gas to form gas of suitable temperature, and then pass through the fifth connecting pipe 803 to reach the second fan 9.

[0044] Working principle: when using, the waste gas can be converted into high-temperature harmless gas, and the high-temperature harmless gas is divided into three parts, part of the high-temperature harmless gas preheats the waste gas in the plate heat exchanger, part of the high-temperature harmless gas reaches the desorption air outlet cavity 204, and then enters the inlet runner, desorbs the waste gas on the zeolite in the inlet runner, and part of the high-temperature harmless gas passes through the second connecting pipe 405 back to the waste gas inlet cavity 403, reduces the waste gas concentration, improves the waste gas temperature, is beneficial to the catalytic treatment in the waste gas recatalysis mechanism 5, and can fully utilize the heat in the high-temperature harmless gas.

[0045] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the present application.

Claims

1. A heating catalytic decomposition device for organic waste gas, comprising a frame (1), characterized in that: An exhaust gas inlet and outlet mechanism (2) is installed on the inner top of the frame (1), a plate heat exchanger (3) is installed on the inner top of the frame (1), and the plate heat exchanger (3) is installed on the left side of the exhaust gas inlet and outlet mechanism (2). An exhaust gas diversion mechanism (4) is installed inside the frame (1), and the exhaust gas diversion mechanism (4) is installed on the left side of the plate heat exchanger (3). A catalytic mechanism (5) is installed inside the frame (1), and the catalytic mechanism (5) is installed on the left side of the exhaust gas diversion mechanism (4). A heater (6) is installed inside the mechanism (5); a first fan (7) is installed at the inner bottom of the frame (1); the first fan (7) is installed between the exhaust gas diversion mechanism (4) and the catalytic mechanism (5); an air mixing mechanism (8) is installed at the inner bottom of the frame (1); the air mixing mechanism (8) is installed below the exhaust gas diversion mechanism (4); a second fan (9) is installed at the inner bottom of the frame (1); the second fan (9) is installed between the exhaust gas inlet and outlet mechanism (2) and the air mixing mechanism (8).

2. The device for heating and catalytic decomposition of organic waste gas according to claim 1, characterized in that: The plate heat exchanger (3) is composed of a plurality of heat exchange plates having hollow cavities therein, and gaps exist between the plurality of heat exchange plates.

3. The device for heating and catalytic decomposition of organic waste gas according to claim 2, characterized in that: The exhaust gas inlet and outlet mechanism (2) comprises an exhaust gas inlet and outlet chamber (201), an exhaust gas inlet chamber (202) is provided inside the exhaust gas inlet and outlet chamber (201), an exhaust gas inlet port is installed on the side wall of the exhaust gas inlet chamber (202), a high-temperature discharge chamber (203) is provided inside the exhaust gas inlet and outlet chamber (201), a high-temperature discharge port is installed on the side wall of the high-temperature discharge chamber (203), the exhaust gas inlet chamber (202) is connected to a plurality of heat exchangers in the plate heat exchanger (3), and the exhaust gas inlet chamber (202) is connected to a plurality of heat exchangers in the plate heat exchanger (3). The hollow cavities of the plates are connected, the high-temperature discharge cavity (203) is connected to the gaps between the heat exchange plates in the plate heat exchanger (3), a desorption air outlet cavity (204) is provided inside the exhaust gas inlet and outlet chamber (201), a desorption air outlet is installed on the side wall of the desorption air outlet cavity (204), a first connecting pipe (205) is fixedly connected to the bottom of the desorption air outlet cavity (204), and the first connecting pipe (205) is fixedly connected to the air outlet of the second fan (9).

4. The device for heating and catalytically decomposing organic waste gas according to claim 2, characterized in that: The waste gas diversion mechanism (4) includes a waste gas diversion chamber (401), a waste gas discharge chamber (402) is provided inside the waste gas diversion chamber (401), the waste gas discharge chamber (402) is communicated with the gap between the heat exchange plates in the plate heat exchanger (3), the waste gas discharge chamber (402) is communicated with the interior of the air mixing mechanism (8), a waste gas inlet chamber (403) is provided inside the waste gas diversion chamber (401), the waste gas inlet chamber (403) is communicated with the hollow cavities of the plurality of heat exchange plates in the plate heat exchanger (3), and the side wall of the waste gas inlet chamber (403) is provided. An air inlet channel (404) is fixedly connected, and the air inlet channel (404) is communicated with the interior of the catalytic mechanism (5). A second connecting pipe (405) is fixedly connected between the exhaust gas inlet chamber (403) and the exhaust gas outlet chamber (402), and an internal circulation valve is provided inside the second connecting pipe (405). An air supply valve (406) is installed on the side wall of the exhaust gas inlet chamber (403). A third connecting pipe (407) is fixedly connected to the bottom of the exhaust gas outlet chamber (402), and the bottom of the third connecting pipe (407) is fixedly connected to the air outlet of the first fan (7).

5. The device for heating and catalytic decomposition of organic waste gas according to claim 1, characterized in that: The catalytic mechanism (5) includes a catalytic chamber (501), the catalytic chamber (501) is connected to the air inlet channel (404), a steel grating (502) is fixedly connected to the inside of the catalytic chamber (501), a catalyst placement cavity is formed above the steel grating (502), a perforated plate (503) is fixedly connected to the inside of the catalytic chamber (501), the perforated plate (503) is located below the steel grating (502), an air distribution plate (504) is fixedly connected to the inside of the catalytic chamber (501), and the air distribution plate (504) is fixedly connected to the inside of the catalytic chamber (501). 04) is multiple, the wind balancing plate (504) is located below the orifice plate (503), an exhaust passage (505) is provided inside the catalyst chamber (501), a fourth connecting pipe (506) is fixedly connected to the side wall of the catalyst chamber (501), the fourth connecting pipe (506) is connected to the air inlet of the first fan (7), the exhaust passage (505) is connected to the air inlet of the first fan (7) through the fourth connecting pipe (506), and an explosion vent is installed on the top of the catalyst chamber (501).

6. The device for heating and catalytic decomposition of organic waste gas according to claim 1, characterized in that: The heater (6) is composed of a plurality of electric heating rods, and the plurality of electric heating rods are located between the steel grating (502) and the orifice plate (503).

7. The device for heating and catalytically decomposing organic waste gas according to claim 4, characterized in that: The air mixing mechanism (8) comprises an air mixing chamber (801), a connecting pipe is installed between the air mixing chamber (801) and the exhaust gas discharge chamber (402), a regulating valve (802) is installed inside the connecting pipe, a fifth connecting pipe (803) is fixedly connected to the back of the air mixing chamber (801), the fifth connecting pipe (803) is fixedly connected to the air inlet of the second fan (9), and an air inlet valve (804) is installed on the top of the air mixing chamber (801).

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