CN212837973U - Maintenance system for high-temperature reactor steam turbine - Google Patents
Maintenance system for high-temperature reactor steam turbine Download PDFInfo
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- CN212837973U CN212837973U CN202021944447.1U CN202021944447U CN212837973U CN 212837973 U CN212837973 U CN 212837973U CN 202021944447 U CN202021944447 U CN 202021944447U CN 212837973 U CN212837973 U CN 212837973U
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- pressure cylinder
- steam turbine
- maintenance
- high temperature
- dehumidifier
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Abstract
A high temperature reactor steam turbine maintenance system comprises a steam condenser of a steam turbine, wherein an isolation platform is arranged at the top of the throat part of the steam condenser, and a low pressure cylinder and the steam condenser are isolated and sealed by the isolation platform; a communicating pipe is connected between the low pressure cylinder and the high pressure cylinder, a formal maintenance hole is formed in the side face of the communicating pipe, the maintenance hole is connected with an outlet of the dehumidifier through a fan outlet pipeline, and an inlet of the dehumidifier is connected with a human hole of the low pressure cylinder through a fan inlet pipeline; the utility model discloses a dehumidifier continuous operation guarantees that the high pressure cylinder is inside to be full of dry air, and the low pressure jar air is sent back the low pressure cylinder after the dehumidification and is circulated again, can solve the equipment maintenance problem that brings during the long-time outage of high temperature gas cooled reactor nuclear power station steam turbine and the condenser debugging of intaking effectively, has restrained the corruption of metal, guarantees the safety of equipment, has simple structure and the strong advantage of continuity.
Description
Technical Field
The utility model relates to a steam turbine maintenance technical field, concretely relates to high temperature reactor steam turbine maintenance system.
Background
The high-temperature gas cooled reactor nuclear power station demonstration project is located in coastal areas, air humidity is high, the interval between the installation completion of a steam turbine and the first flushing is long, and the anti-corrosion maintenance work of the steam turbine is particularly important. During condenser water inlet periods such as a condensate system test, the humidity inside the steam turbine is high, conventional maintenance needs to be interrupted at the moment, the integrity of the steam turbine maintenance cannot be guaranteed, the steam turbine is prone to corrosion after being installed, and the strength of equipment is reduced to endanger equipment and personal safety.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a high temperature reactor steam turbine maintenance system capable of continuously operating, inhibiting the corrosion of metal, ensuring the safety of equipment and having the advantage of simple structure.
A high temperature reactor steam turbine maintenance system comprises a steam condenser 7 of a steam turbine, wherein an isolation platform 3 is arranged at the top of the throat part of the steam condenser 7, and a low pressure cylinder 2 and the steam condenser 7 are isolated and sealed by the isolation platform 3;
a communicating pipe 10 is connected between the low pressure cylinder 2 and the high pressure cylinder 1, a maintenance hole 8 is formed in the side face of the communicating pipe 10, the maintenance hole 8 is connected with an outlet of a dehumidifier 4 through a fan outlet pipeline 5, and an inlet of the dehumidifier 4 is connected to a manhole 9 of the low pressure cylinder 2 through a fan inlet pipeline 6.
The isolation platform 3 consists of a springboard, a plywood and three-proofing cloth.
The maintenance hole 8 is plugged by a plug during the non-maintenance period of the steam turbine.
The manhole 9 of the low-pressure cylinder is plugged by a plug during the non-maintenance period of the steam turbine.
The dehumidifier 4 is kept to continuously run for 24 hours, and the set value of the humidity is 35 percent.
The low-pressure cylinder 2 is internally provided with a detection test piece.
The shell of the condenser 7 is 10917mm long and 9530mm wide; the top end of the throat part is 7584mm long and 6682mm wide.
The utility model has the advantages that:
the utility model ensures that the inside of the high pressure cylinder 1 is filled with dry air through the continuous operation of the dehumidifier 4, and a small amount of dry air is leaked outwards through the shaft seal of the high pressure cylinder, thereby ensuring the fluidity of the air in the high pressure cylinder; the air of the low pressure cylinder 2 is dehumidified and then sent back to the low pressure cylinder 2 for circulation, so that the problem of equipment maintenance caused by long-time shutdown of a steam turbine of a high temperature gas cooled reactor nuclear power station, particularly during water inlet debugging of a condenser, can be effectively solved, corrosion of metal is inhibited, safety of equipment is guaranteed, and the high pressure steam turbine has the advantages of simple structure and high continuity.
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 and examples.
Referring to fig. 1, the high temperature reactor steam turbine maintenance system comprises a condenser 7 of a steam turbine, wherein an isolation platform 3 is arranged at the top of the throat part of the condenser 7, and the isolation platform 3 isolates and seals a low pressure cylinder 2 from the condenser 7, so that the low pressure cylinder 2 forms a sealed area;
a communicating pipe 10 is connected between the low pressure cylinder 2 and the high pressure cylinder 1, a maintenance hole 8 is formed in the side face of the communicating pipe 10, the maintenance hole 8 is connected with an outlet of a dehumidifier 4 through a fan outlet pipeline 5, and an inlet of the dehumidifier 4 is connected to a manhole 9 of the low pressure cylinder 2 through a fan inlet pipeline 6.
The isolation platform 3 consists of a springboard, a plywood and three-proofing cloth.
The maintenance hole 8 is plugged by a plug during the non-maintenance period of the steam turbine, so that the integrity of the communicating pipe 10 is ensured.
The manhole 9 of the low-pressure cylinder is plugged by using a temporary plug during the non-maintenance period of the steam turbine.
The dehumidifier 4 is kept to continuously run for 24 hours, the set value of the humidity is 35%, the metal corrosion of the steam turbine can be well inhibited below the humidity value, and the maintenance requirement of the nuclear power plant equipment is met.
The inside test strip that places of low pressure jar 2, change and carry out professional corrosion measurement every quarter to verify the maintenance effect.
The utility model discloses a theory of operation does:
during the maintenance of the steam turbine, dry air treated by the dehumidifier 4 enters the communicating pipe 10 from the fan outlet pipeline 5 and respectively enters the high-pressure cylinder 1 and the low-pressure cylinder 2 from the communicating pipe 10, and the high-pressure cylinder 1 leaks air outwards from the shaft seal to keep the air circulation, so that the inside of the high-pressure cylinder 1 is full of the dry air; air in the low-pressure cylinder 2 returns to the dehumidifier 4 through the fan inlet pipeline 6 by the low-pressure cylinder manhole 9, and is sent back to the low-pressure cylinder 2 for circulation after being dehumidified; the corrosion of metal is inhibited, and the safety of equipment is ensured.
Claims (6)
1. The utility model provides a high temperature reactor steam turbine maintenance system, includes condenser (7) of steam turbine, its characterized in that: an isolation platform (3) is erected at the top of the throat part of the condenser (7), and the low-pressure cylinder (2) and the condenser (7) are isolated and sealed by the isolation platform (3);
a communicating pipe (10) is connected between the low-pressure cylinder (2) and the high-pressure cylinder (1), a maintenance hole (8) is formed in the side face of the communicating pipe (10), the maintenance hole (8) is connected with an outlet of the dehumidifier (4) through a fan outlet pipeline (5), and an inlet of the dehumidifier (4) is connected to a manhole (9) of the low-pressure cylinder (2) through a fan inlet pipeline (6).
2. The high temperature reactor turbine service system of claim 1, wherein: the isolation platform (3) is composed of a springboard, a plywood and three-proofing cloth.
3. The high temperature reactor turbine service system of claim 1, wherein: and the maintenance hole (8) is plugged by a formal plug during the non-maintenance period of the steam turbine.
4. The high temperature reactor turbine service system of claim 1, wherein: the manhole (9) of the low-pressure cylinder is plugged by a formal plug during the non-maintenance period of the steam turbine.
5. The high temperature reactor turbine service system of claim 1, wherein: the dehumidifier (4) is kept to continuously run for 24 hours, and the set value of the humidity is 35 percent.
6. The high temperature reactor turbine service system of claim 1, wherein: the detection test piece is placed in the low-pressure cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021944447.1U CN212837973U (en) | 2020-09-08 | 2020-09-08 | Maintenance system for high-temperature reactor steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021944447.1U CN212837973U (en) | 2020-09-08 | 2020-09-08 | Maintenance system for high-temperature reactor steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212837973U true CN212837973U (en) | 2021-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021944447.1U Active CN212837973U (en) | 2020-09-08 | 2020-09-08 | Maintenance system for high-temperature reactor steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212837973U (en) |
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2020
- 2020-09-08 CN CN202021944447.1U patent/CN212837973U/en active Active
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