CN216203390U - RTO waste gas incinerator flue gas waste heat recovery device - Google Patents
RTO waste gas incinerator flue gas waste heat recovery device Download PDFInfo
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- CN216203390U CN216203390U CN202122510332.2U CN202122510332U CN216203390U CN 216203390 U CN216203390 U CN 216203390U CN 202122510332 U CN202122510332 U CN 202122510332U CN 216203390 U CN216203390 U CN 216203390U
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Abstract
The utility model provides a flue gas waste heat recovery device of an RTO waste gas incinerator, which comprises a heat exchange device, wherein a support steel frame is arranged below the heat exchange device, and a connecting pipe box is arranged in the support steel frame; the heat exchange device comprises a high-temperature section heat exchange device and a low-temperature section heat exchange device, and a temperature division interval type structure of the high-temperature section heat exchange device and the high-temperature section heat exchange device is adopted, so that the problems of cross of heat exchange temperature and heat transfer efficiency of flue gas temperature and air temperature are solved, the heat exchange device is suitable for the working condition with higher temperature and larger temperature difference, the equipment runs safely and reliably for a long time, the heat transfer efficiency is high, the integral heat loss of the equipment is smaller, and the heat exchange efficiency is high.
Description
Technical Field
The utility model relates to the technical field of flue gas waste heat recovery, and mainly relates to a flue gas waste heat recovery device of an RTO (regenerative thermal oxidizer) waste gas incinerator.
Background
The Regenerative Thermal Oxidizer, called as "Regenerative Thermal Oxidizer" in English, is called as "RTO" for short, and is a high-efficiency organic waste gas treatment device. The principle is that organic waste gas is heated to over 760 ℃, so that VOC in the waste gas is oxidized and decomposed into carbon dioxide and water. The high-temperature gas generated by oxidation flows through a specially-made ceramic heat accumulator, so that the temperature of the ceramic body is increased to realize heat accumulation, the heat accumulation is used for preheating the subsequently entering organic waste gas, and the production and operation cost is greatly reduced.
Such as automotive manufacturing, oil and gas, chemical, pharmaceutical, paint and coating production, etc. In the production process, the generated harmful gas is usually incinerated by RTO equipment, the harmful gas is converted into harmless carbon dioxide and water in a high-temperature environment, and the purified gas passes through another heat accumulator, so that the temperature is reduced, and the purified gas can be discharged after reaching the discharge standard.
Although the emission temperature of the flue gas is reduced to 200-250 ℃, the part of the emitted flue gas still has a space for energy recovery. If the part of high-temperature flue gas is well utilized, not only is the economic benefit of an enterprise greatly improved, but also the national policy of energy conservation and emission reduction is responded, and certain contribution is made to social environment protection.
SUMMERY OF THE UTILITY MODEL
The utility model provides a flue gas waste heat recovery device of an RTO waste gas incinerator, aiming at the problems.
The specific technical scheme is as follows:
a flue gas waste heat recovery device of an RTO waste gas incinerator comprises a heat exchange device, wherein a support steel frame is arranged below the heat exchange device, and a connecting pipe box is arranged in the support steel frame; the heat exchange device comprises a high-temperature section heat exchange device and a low-temperature section heat exchange device, one side of the high-temperature section heat exchange device is matched with the low-temperature section heat exchange device for use, the other side of the high-temperature section heat exchange device is provided with a high-temperature flue gas inlet, one end of the high-temperature section heat exchange device is matched with the connecting pipe box for use, and the other side of the high-temperature section heat exchange device is provided with an air outlet pipe box; one side of the low-temperature section heat exchange device is matched with the high-temperature section heat exchange device for use, the other side of the low-temperature section heat exchange device is provided with a high-temperature flue gas outlet, one end of the low-temperature section heat exchange device is matched with the connecting pipe box for use, and the other side of the low-temperature section heat exchange device is provided with an air inlet pipe box.
The flue gas waste heat recovery device of the RTO waste gas incinerator is characterized in that the high-temperature section heat exchange device and the low-temperature section heat exchange device are completely the same in structure.
The high-temperature section heat exchange device comprises a frame, wherein a baffle, a side plate and a heat exchange plate are arranged on the frame, a reinforcing plate is arranged on the baffle, a first heat exchange plate bundle is arranged on the side plate, a reinforcing plate is arranged between the first heat exchange plate bundle, an expansion plate and a second heat exchange plate bundle are arranged on the heat exchange plate, and a reinforcing frame is arranged in the middle of the second heat exchange plate bundle.
The flue gas waste heat recovery device for the RTO waste gas incinerator is characterized in that the expansion plates are corrugated expansion plates, and the expansion plates are arranged on the periphery of the heat exchange plate and on two sides of the reinforcing frame.
The flue gas waste heat recovery device of the RTO waste gas incinerator is characterized in that the first heat exchange plate bundle and the second heat exchange plate bundle are fixed in an all-welded mode.
The first heat exchange plate bundle and the second heat exchange plate bundle are formed by assembling and welding a plurality of plate-type heat transfer elements in a welding mode.
The utility model has the beneficial effects that:
the utility model provides a flue gas waste heat recovery device of an RTO waste gas incinerator, which comprises a heat exchange device, wherein a support steel frame is arranged below the heat exchange device, and a connecting pipe box is arranged in the support steel frame; the heat exchange device comprises a high-temperature section heat exchange device and a low-temperature section heat exchange device, one side of the high-temperature section heat exchange device is matched with the low-temperature section heat exchange device for use, the other side of the high-temperature section heat exchange device is provided with a high-temperature flue gas inlet, one end of the high-temperature section heat exchange device is matched with the connecting pipe box for use, and the other side of the high-temperature section heat exchange device is provided with an air outlet pipe box; the low temperature section heat transfer dress one side uses with the cooperation of high temperature section heat transfer device, the opposite side is equipped with the high temperature exhanst gas outlet, low temperature section heat transfer device one end uses with the cooperation of connecting pipe case, the opposite side is equipped with air inlet pipe case, adopt high temperature section heat transfer device and high temperature section heat transfer device's the interval formula structure of dividing the temperature, the heat transfer temperature cross problem and the heat transfer efficiency problem of flue gas temperature and air temperature have been solved, be applicable to the great operating mode of the higher difference in temperature of temperature, equipment long-term operation safe and reliable, the heat transfer efficiency is high, the whole heat loss of equipment is less simultaneously, the heat transfer efficiency is high.
Drawings
Fig. 1 is an overall structural view of the present invention.
FIG. 2 is a structural diagram of a high-temperature section heat exchange device of the present invention.
In the figure: the heat exchange device comprises a heat exchange device 1, a support steel frame 2, a connecting pipe box 3, a high-temperature section heat exchange device 4, a low-temperature section heat exchange device 5, a high-temperature flue gas inlet 6, an air outlet pipe box 7, a high-temperature flue gas outlet 8, an air inlet pipe box 9, a frame 10, a baffle plate 11, a side plate 12, a heat exchange plate 13, a reinforcing plate 14, a first heat exchange plate bundle 15, a reinforcing plate 16, an expansion plate 17, a second heat exchange plate bundle 18 and a reinforcing frame 19.
Detailed Description
In order to make the technical scheme of the utility model clearer and clearer, the utility model is further described with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent replacement and conventional reasoning on the technical characteristics of the technical scheme of the utility model falls into the protection scope of the utility model.
As shown in the figure, the flue gas waste heat recovery device of the RTO waste gas incinerator comprises a heat exchange device 1, wherein a support steel frame 2 is arranged below the heat exchange device 1, and a connecting pipe box 3 is arranged in the support steel frame 2; the heat exchange device 1 comprises a high-temperature section heat exchange device 4 and a low-temperature section heat exchange device 5, one side of the high-temperature section heat exchange device 4 is matched with the low-temperature section heat exchange device 5 for use, the other side of the high-temperature section heat exchange device 4 is provided with a high-temperature flue gas inlet 6, one end of the high-temperature section heat exchange device 4 is matched with the connecting pipe box 3 for use, and the other side of the high-temperature section heat exchange device 4 is provided with an air outlet pipe box 7; one side of the low-temperature section heat exchange device 5 is matched with the high-temperature section heat exchange device for use, the other side of the low-temperature section heat exchange device is provided with a high-temperature flue gas outlet 8, one end of the low-temperature section heat exchange device 5 is matched with the connecting pipe box 3 for use, and the other side of the low-temperature section heat exchange device is provided with an air inlet pipe box 9.
The high-temperature section heat exchange device 4 and the low-temperature section heat exchange device 5 have the same structure.
The high-temperature section heat exchange device 4 comprises a frame 10, wherein a baffle plate 11, side plates 12 and heat exchange plates 13 are arranged on the frame 10, reinforcing plates 14 are arranged on the baffle plate 11, first heat exchange plate bundles 15 are arranged on the side plates 12, reinforcing plates 16 are arranged between the first heat exchange plate bundles 15, expansion plates 17 and second heat exchange plate bundles 18 are arranged on the heat exchange plates 13, and reinforcing frames 19 are arranged in the middle positions of the second heat exchange plate bundles 18.
The expansion plates 17 are corrugated expansion plates, and the expansion plates 17 are arranged on the periphery of the heat exchange plate 13 and on two sides of the reinforcing frame 19.
The first heat exchange plate bundle 15 and the second heat exchange plate bundle 18 are fixed in an all-welded manner.
The first heat exchange plate bundle 15 and the second heat exchange plate bundle 18 are formed by assembling and welding a plurality of plate-type heat transfer elements in a welding mode.
The utility model provides a flue gas waste heat recovery device of an RTO waste gas incinerator, which comprises a heat exchange device, wherein a support steel frame is arranged below the heat exchange device, and a connecting pipe box is arranged in the support steel frame; the heat exchange device comprises a high-temperature section heat exchange device and a low-temperature section heat exchange device, one side of the high-temperature section heat exchange device is matched with the low-temperature section heat exchange device for use, the other side of the high-temperature section heat exchange device is provided with a high-temperature flue gas inlet, one end of the high-temperature section heat exchange device is matched with the connecting pipe box for use, and the other side of the high-temperature section heat exchange device is provided with an air outlet pipe box; the low temperature section heat transfer dress one side uses with the cooperation of high temperature section heat transfer device, the opposite side is equipped with the high temperature exhanst gas outlet, low temperature section heat transfer device one end uses with the cooperation of connecting pipe case, the opposite side is equipped with air inlet pipe case, adopt high temperature section heat transfer device and high temperature section heat transfer device's the interval formula structure of dividing the temperature, the heat transfer temperature cross problem and the heat transfer efficiency problem of flue gas temperature and air temperature have been solved, be applicable to the great operating mode of the higher difference in temperature of temperature, equipment long-term operation safe and reliable, the heat transfer efficiency is high, the whole heat loss of equipment is less simultaneously, the heat transfer efficiency is high.
One end of the heat exchange plate bundle of the high-temperature section heat exchange device and the low-temperature section heat exchange device is welded with the frame to form a fixed end, and the other end of the heat exchange plate bundle is used as a free end to be welded with the upper end of the expansion plate;
meanwhile, the heat exchange plate bundle is formed by assembling and welding a plurality of plate-type heat transfer elements in a welding mode, and the expansion element is used for absorbing the axial expansion displacement of the heat exchange plate bundle under the working condition caused by temperature difference;
in addition, the flow channel of the high-temperature flue gas is of a straight-through structure, namely the flow direction of the high-temperature flue gas is kept to flow out in a linear direction from the high-temperature flue gas inlet to the high-temperature flue gas outlet, so that the resistance drop can be further reduced;
the air flow channel is of a U-shaped structure, namely the air flows from the air inlet pipe box to the air outlet pipe box and carries out cross flow heat exchange with the high-temperature flue gas in a U-shaped flowing mode through the connecting pipe box.
This utility patent:
the plate-type heat transfer element is adopted to improve the heat transfer efficiency;
the heat exchange plate bundle adopts an all-welded structure, so that the reliability of the equipment is improved;
the temperature interval type structure of the high-temperature section heat exchange device and the low-temperature section heat exchange device is adopted, so that the problems of cross heat exchange temperature and heat transfer efficiency of the flue gas temperature and the air temperature are solved;
under the condition of not influencing heat transfer, the resistance drop is effectively reduced;
the corrugation on the surface of the plate-type heat transfer element increases the turbulence degree and the wall surface shearing force in the flow channel, thereby improving the heat transfer efficiency, reducing the ash deposition rate of the flue gas in the flow channel and further ensuring the long-term high-efficiency operation of the heat exchanger.
The high-temperature section heat exchange device and the low-temperature section heat exchange device both adopt a combined structure of the frame 1 and the heat exchange plate bundle, one end of the combined structure is fixed, and the other end of the combined structure is axially and freely telescopic, so that the problem of thermal expansion is solved;
the expansion element can absorb larger expansion displacement, and the application range is wide;
the device is suitable for the working conditions with higher temperature and larger temperature difference;
the equipment is safe and reliable in long-term operation and high in heat transfer efficiency;
the whole heat loss of the equipment is small, and the heat exchange efficiency is high.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A flue gas waste heat recovery device of an RTO waste gas incinerator comprises a heat exchange device (1), and is characterized in that a support steel frame (2) is arranged below the heat exchange device (1), and a connecting pipe box (3) is arranged in the support steel frame (2); the heat exchange device (1) comprises a high-temperature section heat exchange device (4) and a low-temperature section heat exchange device (5), one side of the high-temperature section heat exchange device (4) is matched with the low-temperature section heat exchange device (5) for use, the other side of the high-temperature section heat exchange device is provided with a high-temperature flue gas inlet (6), one end of the high-temperature section heat exchange device (4) is matched with the connecting pipe box (3) for use, and the other side of the high-temperature section heat exchange device is provided with an air outlet pipe box (7); one side of the low-temperature section heat exchange device (5) is matched with the high-temperature section heat exchange device for use, the other side of the low-temperature section heat exchange device is provided with a high-temperature flue gas outlet (8), one end of the low-temperature section heat exchange device (5) is matched with the connecting pipe box (3) for use, and the other side of the low-temperature section heat exchange device is provided with an air inlet pipe box (9).
2. An RTO waste gas incinerator flue gas waste heat recovery device as claimed in claim 1 wherein said high temperature section heat exchange means (4) and low temperature section heat exchange means (5) are of identical construction.
3. The RTO waste gas incinerator flue gas waste heat recovery device of claim 1, characterized in that, the high temperature section heat exchange device (4) includes a frame (10), a baffle (11), a side plate (12) and a heat exchange plate (13) are arranged on the frame (10), a reinforcing plate (14) is arranged on the baffle (11), a first heat exchange plate bundle (15) is arranged on the side plate (12), a reinforcing plate (16) is arranged between the first heat exchange plate bundle (15), an expansion plate (17) and a second heat exchange plate bundle (18) are arranged on the heat exchange plate (13), and a reinforcing frame (19) is arranged on the middle position of the second heat exchange plate (18) bundle.
4. An RTO waste gas incinerator flue gas waste heat recovery device as claimed in claim 3 wherein said expansion plates (17) are corrugated expansion plates and said expansion plates (17) are mounted around the heat exchange plates (13) and on either side of the reinforcing frame (19).
5. An RTO waste gas incinerator flue gas waste heat recovery device as claimed in claim 3 wherein said first heat exchange plate bundle (15) and second heat exchange plate bundle (18) are secured by all welding.
6. An RTO waste gas incinerator flue gas waste heat recovery device as claimed in claim 3 wherein said first heat exchange plate bundle (15) and second heat exchange plate bundle (18) are assembled and welded by a plurality of plate type heat transfer elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122510332.2U CN216203390U (en) | 2021-10-19 | 2021-10-19 | RTO waste gas incinerator flue gas waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122510332.2U CN216203390U (en) | 2021-10-19 | 2021-10-19 | RTO waste gas incinerator flue gas waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216203390U true CN216203390U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122510332.2U Active CN216203390U (en) | 2021-10-19 | 2021-10-19 | RTO waste gas incinerator flue gas waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216203390U (en) |
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2021
- 2021-10-19 CN CN202122510332.2U patent/CN216203390U/en active Active
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