Electric heating RTO for waste gas treatment

Abstract

The utility model relates to the field of waste gas treatment, and discloses an electric heating RTO for waste gas treatment, which comprises an upper chamber body, an oxidizing chamber I, an oxidizing chamber II and an oxidizing chamber III are arranged in the upper chamber body, and an electric heater I is arranged between the oxidizing chamber I and the oxidizing chamber II. A second electric heater is arranged between the second oxidizing chamber and the third oxidizing chamber, a cantilever crane is fixedly connected to the upper portion of the upper chamber body, a lower chamber body is arranged at the bottom of the upper chamber body, a valve system is arranged on the front portion of the upper chamber body, and the lower chamber body comprises three heat storage chambers. The upper parts of the three heat storage chambers are fixedly connected to the bottoms of the oxidation chamber I, the oxidation chamber II and the oxidation chamber III respectively. The utility model aims to improve and adopt a modular structure, is convenient to install, optimizes the fluency of the flow channel, ensures the uniformity of the internal temperature, and controls the temperature below 1500 DEG C, so that the emission of nitrogen oxides is avoided, and the treatment efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment, in particular to an electric heating RTO for waste gas treatment. Background Art

[0002] An electrically heated regenerative thermal oxidizer (RTO) is a common waste gas treatment equipment that converts harmful substances in organic waste gas into harmless carbon dioxide and water through high-temperature oxidation. The electrically heated RTO uses electric heating elements to provide the required high temperature instead of traditional burning fuel.

[0003] Traditional RTO equipment uses gas heating. Due to structural limitations, the internal temperature distribution is not uniform enough, and due to the high combustion temperature, it is easy to produce a large amount of nitrogen oxide emissions and carbon emissions. Therefore, it is necessary to design a regenerative thermal oxidation furnace that uses green electricity heating to treat exhaust gas in order to overcome the above defects. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an electric heating RTO for exhaust gas treatment, which aims to improve the modular structure and facilitate installation, while optimizing the smoothness of the flow channel, ensuring the uniformity of the internal temperature, and controlling the temperature below 1500 degrees Celsius, so that no nitrogen oxide emissions will be generated and the treatment efficiency will be higher.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an electrically heated RTO for exhaust gas treatment, comprising an upper chamber body, wherein oxidation chamber one, oxidation chamber two and oxidation chamber three are arranged inside the upper chamber body, an electric heater one is arranged between oxidation chamber one and oxidation chamber two, an electric heater two is arranged between oxidation chamber two and oxidation chamber three, a cantilever crane is fixedly connected to the upper part of the upper chamber body, a lower chamber body is arranged at the bottom of the upper chamber body, and a valve system is arranged at the front part of the upper chamber body.

[0006] As a further description of the above technical solution:

[0007] The lower chamber body includes three heat storage chambers, the upper parts of the three heat storage chambers are respectively fixedly connected to the bottoms of the oxidation chamber 1, the oxidation chamber 2 and the oxidation chamber 3, and the bottoms of the three heat storage chambers are all provided with wind cavities.

[0008] As a further description of the above technical solution:

[0009] The valve system includes an intake channel and an exhaust channel, wherein an intake lift valve 1 is arranged at the upper portion of the intake channel, an intake lift valve 2 is arranged at the upper portion of the intake channel, an intake lift valve 3 is arranged at the upper portion of the intake channel, an exhaust lift valve 1 is arranged at the upper portion of the exhaust channel, an exhaust lift valve 2 is arranged at the upper portion of the exhaust channel, and an exhaust lift valve 3 is arranged at the upper portion of the exhaust channel, an intake port is opened at the upper portion of the intake lift valve 1, the intake lift valve 2 and the intake lift valve 3, an exhaust port is opened at the upper portion of the exhaust lift valve 1, the exhaust lift valve 2 and the exhaust lift valve 3, and a collecting component is arranged at the bottom of the intake lift valve 2 and the exhaust lift valve 2.

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

[0011] The collecting assembly comprises a collecting box, a first purge valve is arranged at the front of the collecting box, a second purge valve is arranged at the front of the collecting box, and a third purge valve is arranged at the front of the collecting box.

[0012] As a further description of the above technical solution:

[0013] The collecting box and the three heat storage chambers are all fixedly connected with connecting pipes.

[0014] As a further description of the above technical solution:

[0015] A support plate is arranged at the front of the upper chamber body, the upper part of the support plate is arranged on fence one, and a climbing ladder one is fixedly connected to the bottom of the support plate.

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

[0017] The outer peripheries of the exhaust lift valve 1, the exhaust lift valve 2 and the exhaust lift valve 3 all penetrate the support plate, and the outer peripheries of the intake lift valve 1, the intake lift valve 2 and the intake lift valve 3 all penetrate the support plate.

[0018] As a further description of the above technical solution:

[0019] A fence 2 is arranged on the upper part of the upper chamber body, and a climbing ladder 2 is arranged on the front part of the upper chamber body.

[0020] As a further description of the above technical solution:

[0021] The cantilever crane is designed to be L-shaped, and a triangular plate is arranged inside the cantilever crane.

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

[0023] The outer peripheries of the electric heater 1 and the electric heater 2 are both slidably connected to the interior of the upper chamber body.

[0024] The utility model has the following beneficial effects:

[0025] In the utility model, through the mutual cooperation of oxidation chamber one, oxidation chamber two, oxidation chamber three, electric heater one, electric heater two, heat storage chamber, cantilever crane and other structures, the temperature in the electric RTO oxidation chamber is more uniform and the processing efficiency is higher. The temperature at the center of the electric heater is much lower than the nitrogen oxide generation temperature (above 1500 degrees Celsius), and almost no nitrogen oxide emissions are generated. The electric heater can be installed and disassembled through the cantilever crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional diagram of an electrically heated RTO for waste gas treatment proposed by the utility model;

[0027] Figure 2 This is a schematic diagram of a heat storage chamber of an electrically heated RTO for waste gas treatment proposed by the utility model;

[0028] Figure 3 This is a top view of an electrically heated RTO for exhaust gas treatment proposed by the utility model.

[0029] Legend:

[0030] 1. Oxidation chamber one; 2. Oxidation chamber two; 3. Oxidation chamber three; 4. Heat storage chamber; 5. Electric heater one; 6. Electric heater two; 7. Cantilever crane; 8. Air intake channel; 9. Exhaust channel; 10. Air intake port; 11. Exhaust port; 12. Air intake lift valve one; 13. Exhaust lift valve one; 14. Purge valve one; 15. Air intake lift valve two; 16. Exhaust lift valve two; 17. Purge valve two; 18. Air intake lift valve three; 19. Exhaust lift valve three; 20. Purge valve three. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-3The utility model provides an embodiment: an electric heating RTO for exhaust gas treatment, comprising an upper chamber body, wherein an oxidation chamber 1, an oxidation chamber 2 and an oxidation chamber 3 are arranged inside the upper chamber body, wherein the oxidation chamber 1, the oxidation chamber 2 and the oxidation chamber 3 are used to treat the exhaust gas, an electric heater 5 is arranged between the oxidation chamber 1 and the oxidation chamber 2, and the electric heater 5 is used to treat the exhaust gas, an electric heater 2 6 is arranged between the oxidation chamber 2 2 and the oxidation chamber 3, and the electric heater 2 6 is used to treat the exhaust gas, a cantilever hanger 7 is fixedly connected to the upper part of the upper chamber body, and the cantilever hanger 7 is used to install and remove the electric heater 1 5 and the electric heater 2 6, a lower chamber body is arranged at the bottom of the upper chamber body, and a valve system is arranged at the front part of the upper chamber body, and the valve system is used to open or close the intake channel 8 and the exhaust channel 9.

[0033] Reference Figure 1-2 The lower chamber body includes three heat storage chambers 4. The upper parts of the three heat storage chambers 4 are fixedly connected to the bottoms of oxidation chamber 1, oxidation chamber 2 and oxidation chamber 3 respectively. The three heat storage chambers 4 are used to preheat the exhaust gas and then transport it to oxidation chamber 1, oxidation chamber 2 and oxidation chamber 3 for subsequent treatment. The bottoms of the three heat storage chambers 4 are all provided with wind cavities, which are used to clean RTO.

[0034] Reference Figure 1 and Figure 3 The valve system includes an intake channel 8 and an exhaust channel 9. An intake lift valve 12 is arranged on the upper part of the intake channel 8, and the exhaust gas enters the bottom air cavity through the intake lift valve 12. An intake lift valve 2 15 is arranged on the upper part of the intake channel 8, and the exhaust gas enters the bottom air cavity through the intake lift valve 2 15. An intake lift valve 3 18 is arranged on the upper part of the intake channel 8, and the exhaust gas enters the bottom air cavity through the intake lift valve 3 18. An exhaust lift valve 13 is arranged on the upper part of the exhaust channel 9, and the treated exhaust gas is discharged through the exhaust lift valve 13. An exhaust lift valve 2 16 is arranged on the upper part of the exhaust channel 9, and the treated exhaust gas is discharged through the exhaust lift valve 2 16. An exhaust lift valve three 19 is arranged on the upper part of the exhaust passage 9, and the treated exhaust gas is discharged through the exhaust lift valve three 19. An air inlet 10 is opened on the upper part of the intake lift valve one 12, the intake lift valve two 15 and the intake lift valve three 18, and the exhaust gas enters the intake lift valve one 12, the intake lift valve two 15 and the intake lift valve three 18 from the air inlet 10. An exhaust port 11 is opened on the upper part of the exhaust lift valve one 13, the exhaust lift valve two 16 and the exhaust lift valve three 19, and the exhaust port 11 is used to discharge the treated exhaust gas. A collecting component is arranged at the bottom of the intake lift valve two 15 and the exhaust lift valve two 16, and the collecting component is used to absorb and store the exhaust gas.

[0035] Reference Figure 1 and Figure 3The collecting assembly includes a collecting box, a purge valve 14 is arranged at the front of the collecting box, a purge valve 2 is arranged at the front of the collecting box, and a purge valve 3 20 is arranged at the front of the collecting box. The purge valve 14, the purge valve 2 17 and the purge valve 3 20 are used to clean the RTO. The collecting box and the three heat storage chambers 4 are fixedly connected with connecting pipes. The collecting box transports the exhaust gas to the heat storage chamber 4 through the connecting pipes. A supporting plate is arranged at the front of the upper chamber body, and the upper part of the supporting plate is arranged on the fence 1. The supporting plate is used to support workers for maintenance. The fence 1 prevents workers from falling. A climbing ladder 1 is fixedly connected to the bottom of the supporting plate. The climbing ladder 1 can more conveniently reach the upper part of the support plate for maintenance.

[0036] Reference Figure 1-3 The outer peripheries of the exhaust lift valve 13, the exhaust lift valve 2 16 and the exhaust lift valve 3 19 all penetrate the support plate, and the outer peripheries of the intake lift valve 12, the intake lift valve 2 15 and the intake lift valve 3 18 all penetrate the support plate. The support plate fixes the positions of the exhaust lift valve 13, the exhaust lift valve 2 16, the exhaust lift valve 3 19, the intake lift valve 12, the intake lift valve 2 15 and the intake lift valve 3 18. A fence 2 is provided on the upper part of the upper chamber body. The fence 2 is used to prevent workers from installing or disassembling the electric heater 15. and electric heater 26 fall, a climbing ladder 2 is provided at the front part of the upper chamber body, by which the upper part of the upper chamber body can be more conveniently reached, and the electric heater 1 5 and the electric heater 2 6 can be installed or removed. The cantilever hanger 7 is designed to be L-shaped, and a triangular plate is provided inside the cantilever hanger 7. The cantilever hanger 7 is designed to be L-shaped and a triangular plate is added inside to increase the supporting force. The outer peripheries of the electric heater 1 5 and the electric heater 2 6 are slidably connected to the interior of the upper chamber body, and the upper chamber body limits the basic position of the electric heater 1 5 and the electric heater 2 6.

[0037] Working principle: The air enters the air inlet 10 into the air inlet passage 8, the air inlet lift valve 1 12, the air inlet lift valve 2 15 and the air inlet lift valve 3 18 are opened, the exhaust lift valve 1 13, the exhaust lift valve 2 16 and the exhaust lift valve 3 19 are opened, the purge valve 1 14, the purge valve 2 17 and the purge valve 3 20 are opened, and the exhaust gas passes through the air inlet lift valve 1 12, the air inlet lift valve 2 15 and the air inlet lift valve 3 18, enters the bottom air cavity, and then enters the heat storage chamber 4 for preheating, and then enters the oxidation chamber 1 and oxidation chamber 2 after preheating. 2 and oxidation chamber three 3, are heated by electric heater one 5 and electric heater two 6 for oxidation treatment, and the treated exhaust gas collects the heat of the exhaust gas through the heat storage chamber 4, and then the exhaust gas enters the bottom air cavity, and then passes through the exhaust lift valve one 13, the exhaust lift valve two 16 and the exhaust lift valve three 19, enters the exhaust channel 9, and is finally discharged to the chimney through the exhaust port 11. Part of the exhaust gas is purged by the bottom air cavity, the purge valve one 14, the purge valve two 17 and the purge valve three 20 to ensure the treatment effect of RTO.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrically heated RTO for waste gas treatment, comprising an upper chamber body, characterized in that: The upper chamber body is provided with oxidation chamber one (1), oxidation chamber two (2) and oxidation chamber three (3), an electric heater one (5) is provided between the oxidation chamber one (1) and the oxidation chamber two (2), an electric heater two (6) is provided between the oxidation chamber two (2) and the oxidation chamber three (3), a cantilever hanger (7) is fixedly connected to the upper part of the upper chamber body, a lower chamber body is provided at the bottom of the upper chamber body, and a valve system is provided at the front part of the upper chamber body.

2. The electrically heated RTO for waste gas treatment according to claim 1, characterized in that: The lower chamber body comprises three heat storage chambers (4), the upper parts of the three heat storage chambers (4) are respectively fixedly connected to the bottoms of the oxidation chamber 1 (1), the oxidation chamber 2 (2) and the oxidation chamber 3 (3), and the bottoms of the three heat storage chambers (4) are all provided with wind cavities.

3. The electrically heated RTO for waste gas treatment according to claim 2, characterized in that: The valve system comprises an intake channel (8) and an exhaust channel (9), wherein an intake lift valve 1 (12) is arranged at the upper portion of the intake channel (8), an intake lift valve 2 (15) is arranged at the upper portion of the intake channel (8), an intake lift valve 3 (18) is arranged at the upper portion of the intake channel (8), an exhaust lift valve 1 (13) is arranged at the upper portion of the exhaust channel (9), an exhaust lift valve 2 (16) is arranged at the upper portion of the exhaust channel (9), and the exhaust channel ( 9) is provided with an exhaust lift valve three (19) at the top, the intake lift valve one (12), the intake lift valve two (15) and the intake lift valve three (18) are all provided with an intake port (10) at the top, the exhaust lift valve one (13), the exhaust lift valve two (16) and the exhaust lift valve three (19) are all provided with an exhaust port (11) at the top, and the intake lift valve two (15) and the exhaust lift valve two (16) are provided with a collecting assembly at the bottom.

4. The electrically heated RTO for waste gas treatment according to claim 3, characterized in that: The collecting assembly comprises a collecting box, a purge valve 1 (14) is arranged at the front of the collecting box, a purge valve 2 (17) is arranged at the front of the collecting box, and a purge valve 3 (20) is arranged at the front of the collecting box.

5. The electrically heated RTO for waste gas treatment according to claim 4, characterized in that: A connecting pipe is fixedly connected between the collecting box and the three heat storage chambers (4).

6. The electrically heated RTO for waste gas treatment according to claim 3, characterized in that: A support plate is arranged at the front of the upper chamber body, the upper part of the support plate is arranged on fence one, and a climbing ladder one is fixedly connected to the bottom of the support plate.

7. The electrically heated RTO for waste gas treatment according to claim 6, characterized in that: The outer peripheries of the exhaust lift valve one (13), the exhaust lift valve two (16) and the exhaust lift valve three (19) all pass through the support plate, and the outer peripheries of the intake lift valve one (12), the intake lift valve two (15) and the intake lift valve three (18) all pass through the support plate.

8. The electrically heated RTO for waste gas treatment according to claim 1, characterized in that: A fence 2 is arranged on the upper part of the upper chamber body, and a climbing ladder 2 is arranged on the front part of the upper chamber body.

9. The electrically heated RTO for waste gas treatment according to claim 1, characterized in that: The cantilever crane (7) is designed to be L-shaped, and a triangular plate is arranged inside the cantilever crane (7).

10. The electrically heated RTO for waste gas treatment according to claim 1, characterized in that: The outer peripheries of the electric heater 1 (5) and the electric heater 2 (6) are both slidably connected to the interior of the upper chamber body.

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