CN211551642U - Heat recovery system based on RTO - Google Patents
Heat recovery system based on RTO Download PDFInfo
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- CN211551642U CN211551642U CN201922265251.3U CN201922265251U CN211551642U CN 211551642 U CN211551642 U CN 211551642U CN 201922265251 U CN201922265251 U CN 201922265251U CN 211551642 U CN211551642 U CN 211551642U
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Abstract
The utility model discloses a heat recovery system based on RTO, include: the system comprises an RTO, a gas-water heat exchanger, a pretreatment heat exchanger and a water tank, wherein an exhaust port of the RTO is communicated with a hot air inlet of the gas-water heat exchanger through an exhaust pipeline, a hot air outlet of the gas-water heat exchanger is communicated with a chimney, a steam outlet of the gas-water heat exchanger is communicated with the pretreatment heat exchanger through a pipeline, a water return outlet of the pretreatment heat exchanger is communicated with the water tank, and the water tank is communicated with a water return inlet of the gas-water heat exchanger through a pipeline. The heat recovery system is reasonable in design, high-temperature waste gas discharged from the RTO sequentially passes through the gas-water heat exchange and the pretreatment heat exchanger for heat exchange, heat in the waste gas is absorbed by water in the pretreatment heat exchanger, hot water is discharged into the water tank and collected for other purposes, for example, the heat recovery system can be used for industrial heating, civil heating, domestic water and the like, a small part of water in the water tank can further flow into the gas-water heat exchanger for heat exchange and cyclic utilization, the heat in the waste gas is recovered to a large extent, and the utilization rate of resources is improved.
Description
Technical Field
The utility model relates to a waste gas treatment technical field, in particular to heat recovery system based on RTO.
Background
The Regenerative Thermal Oxidizer (RTO) is a Regenerative Thermal Oxidizer (RTO) that oxidizes organic compounds (VOCs) in exhaust gas into corresponding carbon dioxide and water at high temperature to purify the exhaust gas and recover heat released during decomposition of the exhaust gas, and the RTO has a main structure including a combustion chamber, a regenerator, and a switching valve.
However, the existing regenerative oxidation furnace has some problems in use, for example, organic waste gas generates a large amount of heat during oxidation, although most of the heat generated by the oxidation of the organic waste gas can be stored by the regenerator, a part of the heat is still directly dissipated in the air, or the heat in the waste gas is directly discharged from a chimney, and the heat is not fully utilized, which results in resource waste.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a heat recovery system based on RTO, the thermal recycle rate is promoted to the heat of absorption organic waste gas that can the limit greatly.
According to the utility model discloses heat recovery system based on RTO, include: the system comprises an RTO, a gas-water heat exchanger, a pretreatment heat exchanger and a water tank, wherein an exhaust port of the RTO is communicated with a hot air inlet of the gas-water heat exchanger through an exhaust pipeline, a hot air outlet of the gas-water heat exchanger is communicated with a chimney, a steam outlet of the gas-water heat exchanger is communicated with the pretreatment heat exchanger through a pipeline, a water return outlet of the pretreatment heat exchanger is communicated with the water tank, and the water tank is communicated with a water return inlet of the gas-water heat exchanger through a pipeline.
The method has the following beneficial effects:
the utility model discloses a heat recovery system based on RTO reasonable in design, discharged high temperature waste gas is discharged from the chimney after the cooling of gas-water heat exchanger heat transfer in the RTO, become steam after the water of gas-water heat exchanger absorbs the most heat of high temperature waste gas, steam sends the preceding processing heat exchanger again and carries out the condensation and release heat, hot water flows into in the basin in the preceding processing heat exchanger again, hot water in the basin can be collected as other usefulness, if can be used to industrial heating, civilian heating and domestic water etc. and a small part of hot water in the basin still can flow into gas-water heat exchanger heat transfer cyclic utilization again, the completion of big limit is to thermal recycle in the waste gas, improve the utilization ratio of resource.
According to the utility model discloses a some embodiments, the last intercommunication of RTO has the bypass pipeline outside the combustion chamber, bypass pipeline and exhaust duct intercommunication, be equipped with the bypass valve on the bypass pipeline.
According to some embodiments of the invention, the gas-water heat exchanger is a tube-type water-smoke heat exchanger.
According to some embodiments of the utility model, the pretreatment heat exchanger is plate heat exchanger or finned tube heat exchanger.
According to some embodiments of the invention, the RTO is a two-chamber RTO.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1, the utility model discloses a heat recovery system based on RTO, include: the system comprises an RTO1, a gas-water heat exchanger 2, a pretreatment heat exchanger 3 and a water tank 4, wherein an exhaust port 11 of the RTO1 is communicated with a hot air inlet of the gas-water heat exchanger 2 through an exhaust pipeline 5, a hot air outlet of the gas-water heat exchanger 2 is communicated with a chimney 6, a steam outlet of the gas-water heat exchanger 2 is communicated with the pretreatment heat exchanger 3 through a pipeline, a water return outlet of the pretreatment heat exchanger 3 is communicated with the water tank 4, and the water tank 4 is communicated with a water return inlet of the gas-water heat exchanger 2 through a pipeline.
It is to be understood that the RTO1 of the present invention may be a conventional RTO, or may be a two-chamber RTO configuration. The main principle of RTO1 is as follows: the exhaust gas enters a heat storage chamber in RTO1 and is in contact with a ceramic heat storage body in the heat storage chamber, the ceramic heat storage body is heated in the last cycle, so that heat is stored, the exhaust gas absorbs heat and raises the temperature of the exhaust gas after being in contact with the ceramic heat storage body, the exhaust gas floats upwards to the combustion chamber 12, a burner of the combustion chamber 12 burns fuel to release heat, the temperature reaches the oxidation temperature of the exhaust gas, the exhaust gas is decomposed into carbon dioxide and water, most of heat in the exhaust gas is absorbed in RTO1 for cyclic utilization, and the treated exhaust gas carries part of heat to be discharged from the exhaust port 11.
The heat recovery system is reasonable in design, and can be understood that high-temperature waste gas discharged from RTO1 is discharged from a chimney 6 after being subjected to heat exchange and cooling by a gas-water heat exchanger 2, water of the gas-water heat exchanger 2 absorbs most of heat of the high-temperature waste gas and then becomes steam, the steam is sent to a front treatment heat exchanger 3 for condensation and heat release, hot water flows into a water tank 4 from the front treatment heat exchanger 3, and the hot water in the water tank 4 can be collected for other purposes, such as industrial heating, civil heating, domestic water and the like, and a small part of hot water in the water tank 4 can further flow into the gas-water heat exchanger 2 for heat exchange and cyclic utilization, so that the heat in the waste gas is recycled to the greatest extent, and the utilization rate of resources is improved.
Further, in the utility model, the gas-water heat exchanger 2 is a tube-type smoke-water heat exchanger, and tap water in the gas-water heat exchanger exchanges heat with waste gas from RTO 1; the pretreatment heat exchanger 3 is a plate heat exchanger or a finned tube heat exchanger, and the internal backwater of the pretreatment heat exchanger exchanges heat with the high-temperature steam from the gas-water heat exchanger 2.
Referring again to fig. 1, in some embodiments of the present invention, a bypass duct 7 is communicated with the RTO1 outside the combustion chamber 12, the bypass duct 7 is communicated with the exhaust duct 5, and a bypass valve 8 is disposed on the bypass duct 7. It can be understood that the temperature of the hot water recovered in the water tank 4 depends on the temperature of the exhaust gas treated by the RTO1, and a system worker can selectively control the degree of the bypass valve 8 on the bypass pipe 7 according to the hot water temperature requirement of the hot spot, so that part of the high-temperature exhaust gas in the combustion chamber 12 enters the exhaust pipe 5 to mix with the exhaust gas from the regenerator, and the temperature of the exhaust gas in the exhaust pipe 5 is raised, thereby raising the temperature of the hot water recovered in the water tank 4.
In addition, when the temperature in the combustion chamber 12 is too high, the bypass valve 8 can be opened to release a certain amount of heat, so that the excessive pressure load in the combustion chamber 12 is reduced, and the safety of the whole RTO1 device is protected.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (5)
1. An RTO-based heat recovery system, comprising: RTO (1), gas-water heat exchanger (2), pretreatment heat exchanger (3) and basin (4), gas vent (11) of RTO (1) are through exhaust duct (5) and the hot-blast entry intercommunication of gas-water heat exchanger (2), the hot air exitus intercommunication chimney (6) of gas-water heat exchanger (2), the steam outlet of gas-water heat exchanger (2) passes through the pipeline and communicates with pretreatment heat exchanger (3), the return water export of pretreatment heat exchanger (3) lets in basin (4), basin (4) pass through the pipeline and the return water entry intercommunication of gas-water heat exchanger (2).
2. The RTO-based heat recovery system of claim 1, wherein the RTO (1) is provided with a bypass conduit (7) communicating with the combustion chamber (12), the bypass conduit (7) communicating with the exhaust conduit (5), the bypass conduit (7) being provided with a bypass valve (8).
3. The RTO-based heat recovery system of claim 2, wherein the gas-water heat exchanger (2) is a tube-in-tube water-smoke heat exchanger.
4. The RTO-based heat recovery system of claim 1, wherein the pre-treatment heat exchanger (3) is a plate heat exchanger or a finned tube heat exchanger.
5. The RTO-based heat recovery system of any of claims 1 to 4, wherein the RTO is a two-compartment RTO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922265251.3U CN211551642U (en) | 2019-12-16 | 2019-12-16 | Heat recovery system based on RTO |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922265251.3U CN211551642U (en) | 2019-12-16 | 2019-12-16 | Heat recovery system based on RTO |
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| Publication Number | Publication Date |
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| CN211551642U true CN211551642U (en) | 2020-09-22 |
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| CN201922265251.3U Active CN211551642U (en) | 2019-12-16 | 2019-12-16 | Heat recovery system based on RTO |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115751334A (en) * | 2022-09-29 | 2023-03-07 | 江苏源一工程科技有限公司 | RTO waste gas heat recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115751334A (en) * | 2022-09-29 | 2023-03-07 | 江苏源一工程科技有限公司 | RTO waste gas heat recovery system |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: RTO based heat recovery system Effective date of registration: 20230625 Granted publication date: 20200922 Pledgee: Hengqin Guangdong Macao Deep Cooperation Zone Branch of Guangdong Shunde Rural Commercial Bank Co.,Ltd. Pledgor: ZHUHAI SPEEDBIRD PVC FILM LAMINATED METAL SHEET Co.,Ltd. Registration number: Y2023980045614 |