CN210068253U - Steam turbine power generation system - Google Patents
Steam turbine power generation system Download PDFInfo
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- CN210068253U CN210068253U CN201920728989.6U CN201920728989U CN210068253U CN 210068253 U CN210068253 U CN 210068253U CN 201920728989 U CN201920728989 U CN 201920728989U CN 210068253 U CN210068253 U CN 210068253U
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- 238000010248 power generation Methods 0.000 title claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 33
- 230000017525 heat dissipation Effects 0.000 claims description 19
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 41
- 239000011229 interlayer Substances 0.000 description 17
- 230000002265 prevention Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000005855 radiation Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Abstract
The utility model relates to a steam turbine power generation field discloses a steam turbine power generation system, wherein, steam turbine power generation system includes: the boiler room is internally provided with a boiler; a steam turbine room (1); the steam inlet of the steam turbine set (3) is arranged at the same height as the steam outlet of the boiler and is communicated with the steam outlet of the boiler; an air cooling platform; the steam exhaust pipeline (4) of L shape, steam exhaust pipeline (4) include inside vertical section (41), horizontal segment (42), the height of inside vertical section (41) is 9m-11m, the length of outside vertical section (43) is 7m-9 m. Through above-mentioned technical scheme, because the exhaust steam pipe set up highly along with the high increase on steam turbine operation layer and improve, the length of exhaust steam pipe obviously shortens, the cost is reduced, and the vibration intensity reduces, has improved the installation security performance.
Description
Technical Field
The utility model relates to a steam turbine power generation field specifically relates to steam turbine power generation system.
Background
The thermal power plant includes boiler factory building and steam turbine factory building, in order to reduce the length of pipeline between steam turbine and the boiler and turn round, can be with the steam turbine design for roughly as high as the boiler.
The steam exhausted by the steam turbine can adopt a direct air cooling system, the air cooling platform is provided with a heat radiation pipe row, and the design of a steam exhaust pipeline between the steam turbine and the air cooling platform has great difficulty due to the height difference between the air cooling platform and a steam turbine running layer.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a steam turbine power generation system to solve the design problem of the exhaust steam pipeline between steam turbine unit and the air cooling platform.
In order to achieve the above object, the present invention provides a steam turbine power generation system, wherein, the steam turbine power generation system includes:
the boiler room is internally provided with a boiler;
the steam turbine comprises a steam turbine room, wherein a steam turbine running layer and a steam exhaust pipeline layer positioned at the lower part of the steam turbine running layer are arranged in the steam turbine room;
the steam turbine set is arranged on the steam turbine running layer, and a steam inlet of the steam turbine set is arranged at the same height as a steam outlet of the boiler and is communicated with the steam outlet of the boiler;
the air cooling platform is horizontally spaced from the steam turbine room, and a heat dissipation pipe row is arranged on the air cooling platform;
the steam exhaust pipeline of U-shaped, steam exhaust pipeline includes inside vertical section, horizontal segment, the horizontal segment supports on the steam exhaust pipeline layer and follow in the steam turbine room towards the air cooling platform and extend to the outside, the both ends of inside vertical section connect respectively in the steam turbine group with the horizontal segment, outside vertical section connect in the horizontal segment and upwards extend, the upper end of outside vertical section connect in the heat dissipation bank of tubes, the height of inside vertical section is 9m-11m, the length of outside vertical section is 7m-9 m.
Preferably, a compensator is arranged at one end of the horizontal section connected to the inner vertical section.
Preferably, the steam turbine power generation system includes a low pressure heater partially disposed in the inner vertical section, and a portion of the low pressure heater located in the inner vertical section is provided with a steam receiving port communicating with the steam turbine group.
Preferably, the steam turbine set is further connected to the inner vertical section by a low pressure bypass duct provided with a three-stage desuperheater.
Preferably, a support frame which is located at the lower part of the horizontal section and supports the horizontal section is arranged between the steam turbine room and the air cooling platform, and the support frame is installed in the steam turbine room.
Preferably, the height of the turbine operating layer is 60m-70m, the height of the steam exhaust pipeline layer is 40m-45m, and the height of the air cooling platform is 35m-45 m.
Preferably, the steam turbine room comprises a 0 meter layer, a first middle interlayer, a condensed water tank layer, a second middle interlayer, a third middle interlayer and a fourth middle interlayer which are arranged from bottom to top, and the steam exhaust pipeline layer is located on the upper side of the fourth middle interlayer.
Preferably, the height of the first interlayer is 6m to 8m, the height of the condensate tank layer is 13m to 15m, the height of the second interlayer is 20m to 22m, the height of the third interlayer is 27m to 29m, and the height of the fourth interlayer is 35m to 36 m.
Preferably, the air cooling platform includes fan array and the radiating unit array on upper portion in lower part, the heat dissipation bank of tubes sets up on the radiating unit array.
Preferably, one side of the air-cooling platform facing the steam turbine room is provided with a wind prevention member extending towards the steam turbine room, and the wind prevention member can at least partially block airflow in the vertical direction between the air-cooling platform and the steam turbine room.
Through above-mentioned technical scheme, because the exhaust steam pipe set up highly along with the high increase on steam turbine operation layer and improve, the length of exhaust steam pipe obviously shortens, the cost is reduced, and the vibration intensity reduces, has improved the installation security performance.
Drawings
Fig. 1 is a schematic structural diagram of a steam turbine power generation system according to an embodiment of the present invention.
Description of the reference numerals
1 steam turbine room 3 steam turbine set
4 exhaust pipe 6 heat radiation pipe row
7 low-pressure heater
11 steam turbine running layer 12 steam exhaust pipeline layer
41 internal vertical section 42 horizontal section
43 outer vertical section 44 compensator
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
The utility model provides a steam turbine power generation system, wherein, steam turbine power generation system includes:
the boiler room is internally provided with a boiler;
the system comprises a steam turbine room 1, wherein a steam turbine running layer 11 and a steam exhaust pipeline layer 12 positioned at the lower part of the steam turbine running layer 11 are arranged in the steam turbine room 1;
the steam turbine set 3 is arranged on the steam turbine running layer 11, and a steam inlet of the steam turbine set 3 is arranged at the same height as a steam outlet of the boiler and is communicated with the steam outlet;
the air cooling platform is horizontally spaced from the steam turbine room 1, and a heat dissipation pipe row is arranged on the air cooling platform;
The boiler may provide steam to the steam turbine set 3 (indirectly or directly) to drive the steam turbine set 3 to do work, thereby driving a generator in driving connection with the steam turbine set 3 to generate electricity. The steam turbine set 3 is arranged at a relatively high position, and a steam inlet for receiving steam is ensured to be approximately equal to a steam outlet of the boiler, so that the length of a steam pipeline is reduced, corners and turning parts are reduced, the pipeline cost is saved, and the energy loss of the steam in the pipeline is reduced.
The steam after acting is discharged from the turboset 3, conveyed to a heat dissipation pipe row of the air cooling platform through a steam exhaust pipeline 4 for air cooling heat dissipation and condensation, and then further conveyed to a condenser. The steam exhaust pipeline 4 extends to the steam exhaust pipeline layer 12 through the steam turbine operation layer 11, the steam exhaust pipeline 4 comprises an inner vertical section 41 extending to the steam exhaust pipeline layer 12 through the steam turbine operation layer 11, a horizontal section 42 extending to the outside from the steam turbine room 1 and an outer vertical section 43 extending upwards from one end, located outside the steam turbine room 1, of the horizontal section 42, the steam exhaust pipeline 4 is integrally formed into a U shape, the height of the inner vertical section 41 is 9m-11m, preferably 10m, and the length of the outer vertical section 43 is 7m-9m, preferably 8 m.
Because the setting height of the steam exhaust pipeline is improved along with the increase of the height of the steam turbine running layer 11, the length of the steam exhaust pipeline is obviously shortened, the cost is reduced, the vibration strength is reduced, and the installation safety performance is improved.
Wherein, one end of the horizontal section 42 connected to the inner vertical section 41 is provided with a compensator 44. Referring to fig. 1, a compensator 44 is provided at one end of the horizontal section 42 connected to the inner vertical section 41 so that it can absorb displacement of the entire exhaust steam duct 4 due to expansion and contraction with heat, vibration, etc. The compensator 44 has an upward first interface that can be connected to the inner vertical section 41 and a horizontal second interface that can be connected to the horizontal section 42.
In addition, the steam turbine power generation system includes a low pressure heater 7, the low pressure heater 7 is partially disposed in the inner vertical section 41, and a portion of the low pressure heater 7 located in the inner vertical section 41 is provided with a steam receiving opening communicating with the steam turbine group 3. The low pressure heater 7 may include a steam flow path that receives steam of the turbine group 3 through a steam receiving port, transfers heat of the steam to water to be heated in a water supply flow path, recovers waste heat of the steam, and then discharges the steam to a steam recovery apparatus of a next stage through a steam discharge port thereof, and a water supply flow path. The low pressure heater 7 may be partially inserted into the inner vertical section 41 to facilitate access of the steam flow path to the tubing.
In addition, the steam turbine group 3 is also connected to the inner vertical section 41 through a low pressure bypass pipe provided with a three-stage desuperheater. The turboset 3 is connected to the inner vertical section 41 through a low-pressure bypass pipe to deliver steam into the inner vertical section 41, and the temperature, pressure, and the like of the steam can be reduced by the three-stage desuperheater.
In addition, be provided with between steam turbine room 1 and the air cooling platform and be located horizontal segment 42 lower part and support the support frame of horizontal segment 42, the support frame install in steam turbine room 1. The support frame can install in the outer wall of steam turbine room 1 and the support column of air cooling platform can support the horizontal segment 42 between steam turbine room 1 and the air cooling platform, improves the stability of exhaust steam pipeline 4.
Specifically, the height of the turbine operating layer 11 is 60m-70m, the height of the exhaust pipeline layer 12 is 40m-45m, and the height of the air cooling platform is 35m-45 m. The height of the turbine running layer 11 is mentioned to be 60m-70m to ensure that the steam piping between the turbine unit 3 and the boiler can extend substantially horizontally, and preferably the height of the turbine running layer 11 is 65 m. The height of the exhaust pipe layer 12 located at the lower side of the turbine operating layer 11 is also raised to 35m to 40m, preferably 43m, accordingly. In addition, the height of the air cooling platform is 35m-45 m.
In addition, steam turbine room 1 includes from the 0 meter layer, first intermediate layer, condensate tank layer, second intermediate layer, third intermediate layer, the fourth intermediate layer of upwards arranging down, exhaust steam piping layer 12 is located fourth intermediate layer upside. That is, the steam turbine room 1 includes approximately 8 supporting floors arranged from bottom to top, and the exhaust duct floor 12 and the turbine operating floor 11 are located at the uppermost 7 floors and 8 floors to accommodate the height of the boiler.
Specifically, the height of the first intermediate interlayer is 6m to 8m, the height of the condensate tank layer is 13m to 15m, the height of the second intermediate interlayer is 20m to 22m, the height of the third intermediate interlayer is 27m to 29m, and the height of the fourth intermediate interlayer is 35m to 36 m. Preferably, the height of the first interlayer is 6.9m, the height of the condensate tank layer is 13.7m, the height of the second interlayer is 20.3m, the height of the third interlayer is 27m, and the height of the fourth interlayer is 35.3m
In addition, the air cooling platform includes fan array and the radiating element array on upper portion of lower part, the heat dissipation bank of tubes sets up on the radiating element array. The radiating tube bank comprises a plurality of branch tubes which are connected in parallel and have relatively small outer diameters, and can divide steam from the steam exhaust pipeline into a plurality of branches, so that the heat exchange area is increased. The heat dissipation tube bank can transfer heat to the heat dissipation unit array, the fan array provides heat dissipation airflow to the heat dissipation unit array, and the heat dissipation unit array can be a heat dissipation fin with a heat dissipation channel.
Further, one side of the air cooling platform facing the steam turbine room 1 is provided with a wind prevention member extending towards the steam turbine room 1, and the wind prevention member can at least partially block airflow between the air cooling platform and the steam turbine room 1 in the vertical direction. Wherein, above the fan array can form ascending heat dissipation air current with the low temperature air of air cooling platform downside, the heat dissipation air current takes away the heat behind the radiating element array to reach the air cooling platform top, can be to diffusion around, and prevent wind the air current downflow that the piece can block upper portion, avoid the high temperature air current on upper portion to influence the air temperature of air cooling platform downside, reduce the influence to the heat-sinking capability.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide the technical solution of the present invention with a plurality of simple modifications, including combining each specific technical feature in any suitable manner, and in order to avoid unnecessary repetition, the present invention does not provide additional description for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (10)
1. A steam turbine power generation system, comprising:
the boiler room is internally provided with a boiler;
the system comprises a steam turbine room (1), wherein a steam turbine running layer (11) and a steam exhaust pipeline layer (12) positioned at the lower part of the steam turbine running layer (11) are arranged in the steam turbine room (1);
the steam turbine set (3) is arranged on the steam turbine running layer (11), and a steam inlet of the steam turbine set (3) is arranged at the same height as a steam outlet of the boiler and is communicated with the steam outlet;
the air cooling platform is horizontally spaced from the steam turbine room (1), and a heat dissipation pipe row (6) is arranged on the air cooling platform;
steam exhaust pipeline (4) of U-shaped, steam exhaust pipeline (4) include inside vertical section (41), horizontal segment (42) and outside vertical section (43), horizontal segment (42) support is in on steam exhaust pipeline layer (12) and follow in steam turbine room (1) orientation the air cooling platform and extend to the outside, the both ends of inside vertical section (41) connect respectively in steam turbine group (3) with horizontal segment (42), outside vertical section (43) connect in horizontal segment (42) and upwards extend, the upper end of outside vertical section (43) connect in heat dissipation bank of tubes (6), the height of inside vertical section (41) is 9m-11m, the length of outside vertical section (43) is 7m-9 m.
2. The steam turbine power generation system of claim 1, characterized in that an end of the horizontal section (42) connected to the inner vertical section (41) is provided with a compensator (44).
3. Steam turbine power generation system according to claim 1, characterized in that it comprises a low-pressure heater (7), the low-pressure heater (7) being partially arranged in the inner vertical section (41), the part of the low-pressure heater (7) located in the inner vertical section (41) being provided with a steam receiving opening communicating with the steam turbine group (3).
4. Steam turbine power generation system according to claim 1, characterized in that the steam turbine set (3) is further connected to the inner vertical section (41) by a low pressure bypass duct provided with a three-stage desuperheater.
5. The steam turbine power generation system according to claim 1, wherein a support frame that is located at a lower portion of the horizontal section (42) and supports the horizontal section (42) is provided between the steam turbine room (1) and the air-cooled platform, and the support frame is mounted to the steam turbine room (1).
6. The steam turbine power generation system according to claim 1, wherein the height of the turbine operating layer (11) is 60m to 70m, the height of the exhaust duct layer (12) is 40m to 45m, and the height of the air-cooled platform is 35m to 45 m.
7. Steam turbine power generation system according to claim 1, characterized in that the steam turbine room (1) comprises a 0 meter layer, a first intermediate layer, a condensate tank layer, a second intermediate layer, a third intermediate layer, and a fourth intermediate layer arranged from bottom to top, and the exhaust pipe layer (12) is located on the upper side of the fourth intermediate layer.
8. The steam turbine power generation system of claim 7, wherein the first intermediate sandwich layer has a height of 6m to 8m, the condensate tank layer has a height of 13m to 15m, the second intermediate sandwich layer has a height of 20m to 22m, the third intermediate sandwich layer has a height of 27m to 29m, and the fourth intermediate sandwich layer has a height of 35m to 36 m.
9. The steam turbine power generation system of claim 1, wherein the air-cooled platform includes a lower fan array and an upper array of heat dissipating units, the array of heat dissipating tubes being disposed on the array of heat dissipating units.
10. Steam turbine power generation system according to claim 9, characterized in that the side of the air-cooled platform facing the steam turbine room (1) is provided with a wind shield extending towards the steam turbine room (1), which wind shield is capable of at least partially blocking the air flow in the vertical direction between the air-cooled platform and the steam turbine room (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920728989.6U CN210068253U (en) | 2019-05-20 | 2019-05-20 | Steam turbine power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920728989.6U CN210068253U (en) | 2019-05-20 | 2019-05-20 | Steam turbine power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068253U true CN210068253U (en) | 2020-02-14 |
Family
ID=69453221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920728989.6U Active CN210068253U (en) | 2019-05-20 | 2019-05-20 | Steam turbine power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210068253U (en) |
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2019
- 2019-05-20 CN CN201920728989.6U patent/CN210068253U/en active Active
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