CN216769435U - Reheating steam heating system of high-parameter waste incineration exhaust-heat boiler - Google Patents
Reheating steam heating system of high-parameter waste incineration exhaust-heat boiler Download PDFInfo
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- CN216769435U CN216769435U CN202121232133.3U CN202121232133U CN216769435U CN 216769435 U CN216769435 U CN 216769435U CN 202121232133 U CN202121232133 U CN 202121232133U CN 216769435 U CN216769435 U CN 216769435U
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Abstract
The utility model discloses a reheating steam heating system of a high-parameter waste incineration waste heat boiler, which comprises a boiler barrel, a primary separator, a connecting pipe, reheater heat exchange equipment, a secondary separator and a superheater inlet pipe, wherein the boiler barrel is connected with the primary separator; the primary separator is arranged in the drum; the reheater heat exchange equipment is fixed above the drum through a plurality of connecting pipes; a secondary separator is arranged above a heat exchange tube in the reheater heat exchange equipment, and a superheater inlet tube is arranged on a shell of the reheater heat exchange equipment above the secondary separator. The utility model adopts the reheating steam heat exchange system outside the boiler, all saturated steam generated by the boiler barrel is introduced into the reheating steam heat exchange equipment to be used for heating the reheating steam, and the saturated steam is introduced into the superheater after heat exchange, so that the heating quality of the reheating steam of the boiler can meet the requirement under the working conditions of normal load and variable load, the stable operation of the reheating system of the boiler can be effectively ensured, the power generation efficiency of a power plant is ensured, and meanwhile, the problem of corrosion of the heat exchange tube bundle in the boiler is avoided.
Description
Technical Field
The utility model belongs to the technical field of waste incineration power generation boilers, and particularly relates to a reheating steam heating system of a high-parameter waste incineration exhaust-heat boiler.
Background
At present, in order to improve the power generation efficiency of a waste incineration power plant, the main steam parameters of a waste incineration waste heat boiler need to be continuously improved, and a reheat steam loop is designed; the waste incineration exhaust-heat boiler has the problems of large load fluctuation and easy corrosion of the reheat steam tube bundle arranged in the boiler.
Disclosure of Invention
The utility model aims to solve the problems and provides a reheating steam heating system of a high-parameter waste incineration exhaust-heat boiler, which adopts an external reheating steam heating mode and has obvious advantages in the aspects of solving the corrosion of a reheating steam heating surface, providing stable reheating steam parameters and the like.
In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme.
The utility model provides a high parameter msw incineration exhaust-heat boiler reheat steam heating system which characterized in that, includes a drum, primary separator, connecting pipe, reheater indirect heating equipment, secondary separator and over heater inlet tube. The primary separator is arranged in the drum. The reheater heat exchange equipment is fixed above the drum through a plurality of connecting pipes; a secondary separator is arranged above a heat exchange tube in the reheater heat exchange equipment, and a superheater inlet tube is arranged on a shell of the reheater heat exchange equipment above the secondary separator. Steam-water mixture produced by the boiler barrel is separated by the primary separator, the separated saturated steam enters the reheat steam heat exchange device through the connecting pipe, and the saturated steam enters the superheater inlet pipe through the secondary separator after heat exchange of the heat exchange pipe in the reheat steam heat exchange device and is introduced into the boiler superheater system.
Furthermore, the primary separators are arranged on the left side and the right side in the boiler barrel.
Furthermore, the connecting pipes are at least provided with 3 connecting pipes which are large-size vertical pipes, and the reheating steam heat exchange equipment is supported above the boiler barrel to play a role in supporting and exchanging steam and water.
Further, the temperature of steam in the superheater inlet pipe is lower than the saturated steam temperature of the drum.
The technical principle of the utility model is that the reheat steam heat exchange equipment is arranged above the boiler barrel, and all saturated steam generated by the boiler barrel is introduced into the reheat steam heat exchange equipment to heat the reheat steam; thereby avoiding the corrosion in the reheating steam pipe bundle arrangement furnace and simultaneously meeting the heating requirement of the reheating steam. All saturated steam generated by the boiler is used for heating reheat steam, the outlet temperature of the reheat steam is lower than the temperature of saturated steam of the boiler barrel, and the flow and the quality of the reheat steam can be ensured; after heat exchange, the water content of saturated steam in the drum rises, and in order to avoid introducing the saturated steam with higher water content into the superheater, a secondary separator is arranged at the position of an outlet pipe of the reheating steam equipment, so that the water content of the saturated steam is reduced.
The utility model has the beneficial effects that: compared with the condition that a reheat steam loop is designed in a furnace in order to improve the power generation efficiency of a waste incineration power plant in the prior art, the utility model adopts a reheat steam heat exchange system outside the furnace, all saturated steam generated by a boiler barrel is introduced into reheat steam heat exchange equipment to be used for heating reheat steam, and the saturated steam is introduced into a superheater after heat exchange, so that the reheat steam heating quality of the boiler can meet the requirement under normal load and variable load working conditions, the stable operation of the reheat steam system of the boiler can be effectively ensured, the power generation efficiency of the power plant is ensured, and meanwhile, the problem of corrosion of a heat exchange tube bundle in the furnace is avoided. The problem of prior art receive the undulant influence of waste incineration exhaust-heat boiler internal load to and arrange the perishable problem of reheat steam tube bank in the stove is solved.
Drawings
FIG. 1 is a schematic view of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
In the figure, the heat exchanger comprises a boiler barrel 1, a boiler barrel 2, a primary separator 3, a connecting pipe 4, a reheater heat exchange device 5, a secondary separator 6, a superheater inlet pipe 7 and a heat exchange pipe.
Detailed Description
The following detailed description of the preferred embodiments of the present patent application, taken in conjunction with the accompanying drawings, will make the advantages and features of the present patent application more readily understood by those skilled in the art, and thus will more clearly and distinctly define the scope of the present patent application.
As shown in fig. 1 and 2, the reheating steam heating system of the waste incineration waste heat boiler with high parameters is characterized by comprising a boiler barrel (1), a primary separator (2), a connecting pipe (3), reheater heat exchange equipment (4), a secondary separator (5) and a superheater inlet pipe (6). The primary separators (2) are arranged on the left side and the right side in the boiler barrel (1). The reheater heat exchange equipment (4) is fixed above the drum (1) through 4 large-size connecting pipes (3), and the length of the connecting pipes (3) in the vertical direction is determined according to an actual structure; a secondary separator (5) is arranged above a heat exchange tube (7) in the reheater heat exchange device (4), and a superheater inlet tube (6) is arranged on a shell of the reheater heat exchange device (4) above the secondary separator (5). Steam-water mixture produced by the boiler barrel (1) is separated by the primary separator (2), the separated saturated steam enters the reheat steam heat exchange equipment (4) through the connecting pipe (3), and the saturated steam enters the superheater inlet pipe (6) through the secondary separator (5) after heat exchange of the heat exchange pipe (7) in the reheat steam heat exchange equipment (4) and is introduced into a boiler superheater system. The temperature of steam in the superheater inlet pipe (6) is lower than the saturated steam temperature of the drum (1).
Compared with the condition that a reheating steam loop is designed in a furnace in order to improve the power generation efficiency of a waste incineration power plant in the prior art, the reheating steam heating system adopts the reheating steam heat exchange system outside the furnace, all saturated steam generated by the boiler barrel (1) is introduced into the reheater heat exchange equipment (4) to be used for heating reheating steam, and the saturated steam is introduced into the superheater after being subjected to heat exchange through the heat exchange tube (7), so that the heating quality of the reheating steam of the boiler can meet the requirement under the working conditions of normal load and variable load of the boiler barrel (1), the stable operation of the reheating system of the boiler can be effectively ensured, the power generation efficiency of the power plant is ensured, and the corrosion problem of the heat exchange tube (7) in the furnace is avoided.
Without being limited thereto, any changes or substitutions which are not imaginable by the inventive step should be covered by the protection scope of the patent of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (2)
1. A reheating steam heating system of a high-parameter waste incineration waste heat boiler is characterized by comprising a boiler barrel, a primary separator, a connecting pipe, reheater heat exchange equipment, a secondary separator and a superheater inlet pipe; the primary separator is arranged in the boiler barrel; the reheater heat exchange equipment is fixed above the drum through a plurality of connecting pipes; a secondary separator is arranged above a heat exchange tube in the reheater heat exchange equipment, and a superheater inlet tube is arranged on a shell of the reheater heat exchange equipment above the secondary separator; the steam-water mixture produced by the boiler barrel is separated by the primary separator, the separated saturated steam enters the reheating steam heat exchange equipment through the connecting pipe, and the saturated steam enters the superheater inlet pipe through the secondary separator after heat exchange of the heat exchange pipe in the reheating steam heat exchange equipment and is introduced into the boiler superheater system.
2. The high-parameter waste incineration exhaust-heat boiler reheating steam heating system of claim 1, wherein: the primary separators are arranged on the left side and the right side in the boiler barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121232133.3U CN216769435U (en) | 2021-06-03 | 2021-06-03 | Reheating steam heating system of high-parameter waste incineration exhaust-heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121232133.3U CN216769435U (en) | 2021-06-03 | 2021-06-03 | Reheating steam heating system of high-parameter waste incineration exhaust-heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216769435U true CN216769435U (en) | 2022-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121232133.3U Active CN216769435U (en) | 2021-06-03 | 2021-06-03 | Reheating steam heating system of high-parameter waste incineration exhaust-heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216769435U (en) |
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2021
- 2021-06-03 CN CN202121232133.3U patent/CN216769435U/en active Active
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