CN217441971U - Heat conduction oil heating system based on circulating fluidized bed boiler - Google Patents
Heat conduction oil heating system based on circulating fluidized bed boiler Download PDFInfo
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- CN217441971U CN217441971U CN202121624970.0U CN202121624970U CN217441971U CN 217441971 U CN217441971 U CN 217441971U CN 202121624970 U CN202121624970 U CN 202121624970U CN 217441971 U CN217441971 U CN 217441971U
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Abstract
The utility model discloses a conduction oil heating system based on circulating fluidized bed boiler has solved how to adopt circulating fluidized bed boiler to replace old chain boiler and realize the problem of conduction oil steady heating. Including diaphragm type water-cooling wall furnace (1), cyclone (2) and afterbody flue (4), cyclone (2) are in the same place through horizontal flue (3) and afterbody flue (4) intercommunication, be provided with medium temperature screen superheater (6) and high temperature screen superheater (7) respectively in diaphragm type water-cooling wall furnace (1), be provided with conduction oil heating serpentine tube bank (8) in afterbody flue (4), the heat conduction oil that preheats gets into from the oil inlet of conduction oil heating serpentine tube bank (8), flow from the oil-out of conduction oil heating serpentine tube bank (8), be connected with water oil heat exchanger (5) on the oil-out of conduction oil heating serpentine tube bank, the conduction oil after the heat transfer of water oil heat exchanger is connected with chemical production technology oil feeding system. Simple structure and easy implementation.
Description
Technical Field
The utility model relates to a circulating fluidized bed boiler, in particular to conduction oil heating system based on circulating fluidized bed boiler.
Background
The heat conduction oil system is a public material generation system in the chemical process device, and transfers heat for the production process of the chemical process through heat conduction oil; the early heat-conducting oil furnace mostly adopts a coal-fired heat-conducting oil chain boiler, the defects of the original chain furnace are more and more prominent along with the improvement of the environmental protection standard, the pressure for improving the heat efficiency and reducing the total emission amount is also increased continuously; how to adopt the circulating fluidized bed boiler to replace an old chain furnace to heat the heat conducting oil, not only realizing the total quantity balance of the boiler heat, but also realizing the energy-saving and emission-reducing targets of the boiler is a subject put on by technical personnel in the same field; how to control the proportion of the heat absorbed by the heat-conducting oil to the total heat absorbed by the boiler within a reasonable range and how to ensure the stability of the temperature and the pressure of the heat-conducting oil outlet need to be further researched and solved.
Disclosure of Invention
The utility model provides a conduction oil heating system based on circulating fluidized bed boiler has solved how to adopt circulating fluidized bed boiler to replace old chain boiler to realize the technical problem that the conduction oil steadily heats.
The utility model discloses a solve above technical problem through following technical scheme:
the utility model provides a conduction oil heating system based on circulating fluidized bed boiler, including diaphragm water-cooling wall furnace, cyclone and afterbody flue, cyclone passes through horizontal flue and afterbody flue intercommunication together, be provided with middle temperature screen superheater and high temperature screen superheater respectively in diaphragm water-cooling wall furnace, be provided with conduction oil heating serpentine tube bank in the afterbody flue, the heat conduction oil that preheats gets into from the oil inlet of conduction oil heating serpentine tube bank, flow from the oil-out of conduction oil heating serpentine tube bank, be connected with the water oil heat exchanger on the oil-out of conduction oil heating serpentine tube bank, conduction oil after the heat transfer of water oil heat exchanger links together with chemical production technology oil feeding system.
In the tail flue, a low-temperature superheater, a high-temperature economizer, a heat-conducting oil heating coiled tube bank, a low-temperature economizer and an air preheater are sequentially arranged from top to bottom.
The utility model discloses an intermediate temperature over heater and high temperature over heater all adopt the screen formula structure to arrange in furnace, adjust the main steam temperature with feedwater water spray desuperheater, the spatial arrangement conduction oil heating coiled pipe row in the flue that will vacate, for guaranteeing the stability of conduction oil outlet temperature and pressure, adjust through oil water separator.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
the utility model provides a conduction oil heating system based on circulating fluidized bed boiler, including diaphragm type water-cooling wall furnace 1, cyclone 2 and afterbody flue 4, cyclone 2 is in the same place through horizontal flue 3 and afterbody flue 4 intercommunication, be provided with medium temperature screen superheater 6 and high temperature screen superheater 7 respectively in diaphragm type water-cooling wall furnace 1, be provided with conduction oil heating serpentine tube bank 8 in afterbody flue 4, the conduction oil that preheats gets into from the oil inlet of conduction oil heating serpentine tube bank 8, flow from the oil-out of conduction oil heating serpentine tube bank 8, be connected with water oil heat exchanger 5 on the oil-out of conduction oil heating serpentine tube bank 8, conduction oil after the heat transfer of water oil heat exchanger 5 links together with chemical production technology oil feeding system.
In the tail flue 4, from top to bottom, a low-temperature superheater 9, a high-temperature economizer 10, a heat-conducting oil heating coiled pipe row 8, a low-temperature economizer 11 and an air preheater 12 are sequentially arranged.
Claims (2)
1. A heat conducting oil heating system based on a circulating fluidized bed boiler comprises a membrane type water-cooled wall hearth (1), a cyclone separator (2) and a tail flue (4), wherein the cyclone separator (2) is communicated with the tail flue (4) through a horizontal flue (3), it is characterized in that a medium-temperature platen superheater (6) and a high-temperature platen superheater (7) are respectively arranged in a film type water-cooled wall hearth (1), a heat conduction oil heating coiled tube bank (8) is arranged in the tail flue (4), preheated heat conduction oil enters from an oil inlet of the heat conduction oil heating coiled tube bank (8) and flows out from an oil outlet of the heat conduction oil heating coiled tube bank (8), the oil outlet of the heat-conducting oil heating coiled pipe row (8) is connected with a water-oil heat exchanger (5), and the heat-conducting oil after heat exchange of the water-oil heat exchanger (5) is connected with an oil supply system of a chemical production process.
2. The heat transfer oil heating system based on the circulating fluidized bed boiler is characterized in that a low-temperature superheater (9), a high-temperature economizer (10), a heat transfer oil heating coiled pipe row (8), a low-temperature economizer (11) and an air preheater (12) are sequentially arranged in the tail flue (4) from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121624970.0U CN217441971U (en) | 2021-07-16 | 2021-07-16 | Heat conduction oil heating system based on circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121624970.0U CN217441971U (en) | 2021-07-16 | 2021-07-16 | Heat conduction oil heating system based on circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217441971U true CN217441971U (en) | 2022-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121624970.0U Active CN217441971U (en) | 2021-07-16 | 2021-07-16 | Heat conduction oil heating system based on circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217441971U (en) |
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2021
- 2021-07-16 CN CN202121624970.0U patent/CN217441971U/en active Active
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