A recoverable heat energy rto exhaust gas treatment device

Abstract

This utility model discloses an RTO (Recoverable Thermal Oxidizer) waste gas treatment device that can recover thermal energy, belonging to the field of waste gas treatment technology. It includes a base, a control panel located on one side of the base near the front, a fan pump located at the center of the upper surface of the base, a flow pipe located at the center of one side wall of the fan pump, and a filter structure on the other side of the base. The filter structure includes a filter box located on the upper surface of the base at the center of one side of the fan pump. Three lifting boxes are arranged horizontally at the center of the filter box, and filter screens, activated carbon, and adsorbent cotton are arranged horizontally at the center of each of the three lifting boxes. A recovery structure is located at the center of one side of the filter structure. Furthermore, this utility model, by employing a multi-stage filtration structure including filter screens, activated carbon, and adsorbent cotton, uses different materials to specifically treat different pollutants, achieving comprehensive purification of waste gas while reducing the burden of subsequent treatment.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology, specifically an RTO waste gas treatment device that can recover heat energy. Background Technology

[0002] With the rapid development of industrialization, the problem of waste gas generated during industrial production has become increasingly serious, especially the emission of volatile organic compounds (VOCs), which poses a serious threat to the environment and human health. VOCs are not only one of the main components of air pollution, but they can also undergo photochemical reactions with nitrogen oxides under sunlight to form ozone and secondary organic aerosols, further aggravating air pollution. Therefore, how to effectively treat VOCs in industrial waste gas has become a key issue that urgently needs to be addressed in the field of environmental protection. Among many waste gas treatment technologies, regenerative thermal oxidizers (RTOs) have gradually become one of the mainstream waste gas treatment technologies due to their advantages such as high efficiency, energy saving, and wide applicability.

[0003] Existing RTO waste gas treatment devices mainly have the following shortcomings:

[0004] Existing RTO exhaust gas treatment devices rely on a single filter medium, making it difficult to simultaneously treat pollutants of different sizes and types. This can easily lead to incomplete exhaust gas purification, with the treated gas still containing some harmful substances. Furthermore, the heat energy in the exhaust gas is not effectively recovered and utilized during the treatment process, resulting in the direct emission of high-temperature exhaust gas and a significant waste of heat energy. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides an RTO waste gas treatment device that can recover thermal energy, thus solving the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an RTO waste gas treatment device that can recover heat energy, comprising: a base, a control panel provided on one side of the base near the front, a fan pump provided on one side of the center of the upper end face of the base, a flow pipe provided on the center of one side wall of the fan pump, and a filter structure provided on the other side of the base;

[0007] The filtration structure includes a filter box, which is located on the upper surface of the base at the center of one side of the fan pump. Three lifting boxes are arranged horizontally at the center of the filter box. Filter screens, activated carbon, and adsorption cotton are arranged horizontally at the center of the three lifting boxes, respectively. A recovery structure is located at the center of one side of the filtration structure, and a heat utilization structure is located at the center of the other side of the recovery structure.

[0008] As a further embodiment of this utility model: the recovery structure includes three heat storage boxes, which are arranged horizontally on the upper surface of the base on one side of the filter box. Multiple ceramic plates are arranged horizontally at the lower center of each of the three heat storage boxes. Support blocks are provided at the front and rear of one side of the upper surface of the heat storage box and at the front and rear of the other side of the upper surface of the heat storage box. A combustion box is provided at the center of the upper surface of the four support blocks.

[0009] As a further embodiment of this utility model: the heat utilization structure includes a heat exchanger, which is disposed on the upper end surface of the base on one side of the recovery structure. A water pipe is provided at the center of the interior of the heat exchanger, and an exhaust pipe is provided at the center of one side wall of the heat exchanger.

[0010] As a further embodiment of this utility model: one end of the water pipe passes through the inner wall of the heat exchanger and leads to the upper end face of the heat exchanger, and the end is fixedly connected to a water inlet; the other end of the water pipe passes through an inner side wall of the heat exchanger and leads to one side of the heat exchanger, and the end is fixedly connected to a drain outlet.

[0011] As a further embodiment of this utility model: connecting pipes are provided between the other side wall of the fan pump, the side wall of the filter box, and the side wall of the three heat storage boxes.

[0012] As a further embodiment of this utility model: each of the three heat storage boxes is provided with a pipe at the center of its upper end face, each of the three pipes is provided with an electric gate at the center of its interior, one end of each of the three pipes passes through the lower end face of the combustion box and leads to the interior of the combustion box, and an air inlet pipe is provided at the center of one side wall of the combustion box.

[0013] As a further embodiment of this utility model: one end of each of the three lifting boxes penetrates through the inner wall of the filter box and extends to the upper surface of the filter box.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model adopts a multi-stage filtration structure including a filter screen, activated carbon and adsorption cotton, with different materials targeting different pollutants, achieving comprehensive purification of waste gas while reducing the burden of subsequent treatment.

[0016] 2. This utility model utilizes ceramic plates in the recycling structure to recover heat from waste gas, enabling the reuse of thermal energy. It also adds a heat utilization structure to transfer the heat from the high-temperature waste gas to the water in the water pipe for insulation and heating of the factory area, significantly improving energy utilization efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2This is a three-dimensional sectional view of the filter structure of this utility model;

[0019] Figure 3 This is a three-dimensional sectional view of the recycling structure of this utility model;

[0020] Figure 4 This is a three-dimensional cross-sectional view of the heat utilization structure of this utility model.

[0021] In the diagram: 1. Base; 2. Control panel; 3. Fan / pump; 4. Flow pipe; 5. Connecting pipe; 6. Filter structure; 601. Filter box; 602. Lifting box; 603. Filter screen; 604. Activated carbon; 605. Adsorption cotton; 7. Recovery structure; 701. Heat storage box; 702. Ceramic plate; 703. Support block; 704. Combustion box; 705. Pipe; 706. Electric gate; 8. Heat utilization structure; 801. Heat exchanger; 802. Water pipe; 9. Air inlet pipe; 10. Exhaust pipe. Detailed Implementation

[0022] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0023] like Figures 1-4 As shown, this utility model provides a technical solution:

[0024] A heat recovery RTO waste gas treatment device includes:

[0025] A base 1 has a control panel 2 located on one front side. A fan pump 3 is located at the center of the upper surface of the base 1, and a flow pipe 4 is located at the center of one side wall of the fan pump 3. A filter structure 6 is located on the other side of the base 1. The filter structure 6 includes a filter box 601, which is located on the upper surface of the base 1 at the center of one side of the fan pump 3. Three lifting boxes 602 are arranged horizontally at the center of the filter box 601. Filter screens 603, activated carbon 604, and absorbent cotton 605 are arranged horizontally at the center of the three lifting boxes 602, respectively. One end of each of the three lifting boxes 602 extends through the filter box. The inner wall of 601 leads to the upper end face of the filter box 601. The waste gas containing pollutants first enters the device through the fan pump 3. The fan pump 3 transports the waste gas and pushes it to flow within the device. The waste gas first passes through the filter structure 6. In the filter structure 6, the filter screen 603, activated carbon 604, and adsorption cotton 605 in the three lifting boxes 602 sequentially filter the waste gas. The filter screen 603 can intercept some larger particulate impurities, the activated carbon 604 can adsorb odors and some harmful gases in the waste gas, and the adsorption cotton 605 further removes the remaining small particles and some gaseous pollutants. After these treatments, the waste gas is initially purified.

[0026] A recovery structure 7 is provided at the center of one side of the filter structure 6. The recovery structure 7 includes three heat storage boxes 701. The three heat storage boxes 701 are arranged horizontally on the upper surface of the base 1 on one side of the filter box 601. Multiple ceramic plates 702 are arranged horizontally at the lower center of each of the three heat storage boxes 701. Support blocks 703 are provided at the front and rear of the upper surface of one heat storage box 701 and at the front and rear of the upper surface of the other heat storage box 701. A combustion chamber 704 is provided at the center of the upper end face of block 703. A pipe 705 is provided at the center of the upper end face of each of the three heat storage boxes 701. An electric gate 706 is provided at the center of the interior of each of the three pipes 705. One end of each of the three pipes 705 passes through the lower end face of the combustion chamber 704 and leads to the interior of the combustion chamber 704. An air inlet pipe 9 is provided at the center of one side wall of the combustion chamber 704. A connecting pipe 5 is provided between the other side wall of the fan pump 3, one side wall of the filter box 601 and one side wall of the three heat storage boxes 701.

[0027] The pre-purified waste gas then enters the recovery structure 7. The heat storage box 701 in the recovery structure 7 contains multiple ceramic plates 702, which have excellent heat storage performance. At this time, the electric gate 706 is open, and the waste gas from the fan pump 3 and filter box 601 enters the heat storage box 701 through the connecting pipe 5. The heat of the waste gas is absorbed and stored by the ceramic plates 702, and the temperature of the waste gas itself decreases. Next, the waste gas enters the combustion box 704, which introduces air and other combustion-supporting gases through the air inlet pipe 9 to perform high-temperature combustion treatment on the waste gas. This causes the harmful volatile organic compounds in the waste gas to oxidize and decompose into harmless substances such as carbon dioxide and water at high temperatures. The high-temperature gas after combustion passes through the heat storage box 701 again, transferring some of its heat to the ceramic plates 702 for storage, and its own temperature decreases, thus realizing the recovery and utilization of thermal energy.

[0028] A heat utilization structure 8 is provided at the center of one side of the recovery structure 7. The heat utilization structure 8 includes a heat exchanger 801, which is disposed on the upper end face of the base 1 on one side of the recovery structure 7. A water pipe 802 is provided at the center of the interior of the heat exchanger 801, and an exhaust pipe 10 is provided at the center of one side wall of the heat exchanger 801. One end of the water pipe 802 passes through the inner wall of the heat exchanger 801 and leads to the upper end face of the heat exchanger 801, and an inlet is fixedly connected to the end of the water pipe 802. The other end of the water pipe 802 passes through the heat exchanger... The inner wall of the device 801 leads to one side of the heat exchanger 801 and is fixedly connected to a drain outlet at one end. The exhaust gas temperature is still high after combustion and heat recovery treatment. Then it enters the heat utilization structure 8. In the heat utilization structure 8, water flows through the water pipe 802 in the heat exchanger 801. The high-temperature exhaust gas exchanges heat with the water pipe 802, heating the water in the water pipe 802. Finally, the exhaust gas is discharged from the device through the exhaust pipe 10. The heated water can play a certain utilization value and can be used for insulation and heating in the factory area.

[0029] The working principle of this utility model is as follows:

[0030] By conveying waste gas containing various pollutants to the filter structure 6 by the fan pump 3, the waste gas flows into the filter box 601 through the flow pipe 4. It passes through the filter screen 603, activated carbon 604, and adsorbent cotton 605. When the waste gas passes through the lifting box 602, the filter screen 603 first intercepts larger particulate impurities in the waste gas, such as dust and solid waste. The activated carbon 604 uses its rich pore structure and huge specific surface area to adsorb odor substances and some harmful gases in the waste gas, such as organic pollutants like benzene and formaldehyde. The adsorbent cotton 605 removes residual small particles and some remaining gaseous pollutants in the waste gas, ensuring that the waste gas entering the subsequent structures is initially purified. After this series of treatments, some pollutants in the waste gas are effectively removed, which helps to reduce the burden on subsequent treatment stages.

[0031] The pre-purified waste gas then enters the recovery structure 7. The heat storage box 701 in the recovery structure 7 contains multiple ceramic plates 702, which have excellent heat storage performance. At this time, the electric gate 706 is open, and the waste gas from the fan pump 3 and filter box 601 enters the heat storage box 701 through the connecting pipe 5. The heat of the waste gas is absorbed and stored by the ceramic plates 702, and the temperature of the waste gas itself decreases. Next, the waste gas enters the combustion box 704, which introduces air and other combustion-supporting gases through the air inlet pipe 9 to perform high-temperature combustion treatment on the waste gas. This causes the harmful volatile organic compounds in the waste gas to oxidize and decompose into harmless substances such as carbon dioxide and water at high temperatures. The high-temperature gas after combustion passes through the heat storage box 701 again, transferring some of its heat to the ceramic plates 702 for storage, and its own temperature decreases, thus realizing the recovery and utilization of thermal energy.

[0032] Even after combustion and heat recovery, the exhaust gas temperature remains high. It then enters the heat utilization structure 8, where water flows through the water pipe 802 in the heat exchanger 801. The high-temperature exhaust gas exchanges heat with the water pipe 802, heating the water in the water pipe 802. Finally, the exhaust gas is discharged from the device through the exhaust pipe 10. The heated water can be used for insulation and heating in the factory area, thus realizing the full utilization of the waste heat from the exhaust gas.

[0033] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A RTO exhaust gas treatment device capable of recovering heat energy, characterized by, include: A base (1) is provided with a control panel (2) on one side near the front. A fan pump (3) is provided on one side near the center of the upper surface of the base (1). A flow pipe (4) is provided at the center of one side wall of the fan pump (3). A filter structure (6) is provided on the other side of the base (1). The filter structure (6) includes a filter box (601), which is located on the upper surface of the base (1) at the center of one side of the fan pump (3). Three lifting boxes (602) are arranged horizontally at the center of the filter box (601). Filter screen (603), activated carbon (604), and absorbent cotton (605) are arranged horizontally at the center of the three lifting boxes (602). A recovery structure (7) is provided at the center of one side of the filter structure (6), and a heat utilization structure (8) is provided at the center of one side of the recovery structure (7).

2. The RTO waste gas treatment device with recoverable heat energy according to claim 1, characterized in that: The recovery structure (7) includes three heat storage boxes (701). The three heat storage boxes (701) are arranged horizontally on the upper surface of the base (1) on one side of the filter box (601). Multiple ceramic plates (702) are arranged horizontally at the lower center of the interior of each of the three heat storage boxes (701). Support blocks (703) are provided at the front and rear of the upper surface of one side of the heat storage box (701) and at the front and rear of the upper surface of the other side of the heat storage box (701). A combustion box (704) is provided at the center of the upper surface of the four support blocks (703).

3. The RTO waste gas treatment device with recoverable heat energy according to claim 1, characterized in that: The heat utilization structure (8) includes a heat exchanger (801), which is disposed on the upper end surface of the base (1) on one side of the recovery structure (7). A water pipe (802) is provided at the center of the heat exchanger (801), and an exhaust pipe (10) is provided at the center of one side wall of the heat exchanger (801).

4. The RTO waste gas treatment device with recoverable heat energy according to claim 3, characterized in that: One end of the water pipe (802) passes through the inner wall of the heat exchanger (801) and leads to the upper end face of the heat exchanger (801), and the end is fixedly connected to a water inlet. The other end of the water pipe (802) passes through one inner wall of the heat exchanger (801) and leads to one side of the heat exchanger (801), and the end is fixedly connected to a drain outlet.

5. The RTO waste gas treatment device with recoverable heat energy according to claim 1, characterized in that: Connecting pipes (5) are provided between the other side wall of the fan pump (3), the side wall of the filter box (601), and the side wall of the three heat storage boxes (701).

6. The RTO waste gas treatment device with recoverable heat energy according to claim 2, characterized in that: Each of the three heat storage boxes (701) has a pipe (705) at the center of its upper end face, and an electric gate (706) is provided at the center of the interior of each of the three pipes (705). One end of each of the three pipes (705) passes through the lower end face of the combustion box (704) and leads to the interior of the combustion box (704). An air inlet pipe (9) is provided at the center of one side wall of the combustion box (704).

7. The RTO waste gas treatment device with recoverable heat energy according to claim 1, characterized in that: One end of each of the three lifting boxes (602) penetrates the upper inner wall of the filter box (601) and extends to the upper end face of the filter box (601).

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