CN211549796U - Drainage system of shaft seal heater of power plant - Google Patents
Drainage system of shaft seal heater of power plant Download PDFInfo
- Publication number
- CN211549796U CN211549796U CN201922235824.8U CN201922235824U CN211549796U CN 211549796 U CN211549796 U CN 211549796U CN 201922235824 U CN201922235824 U CN 201922235824U CN 211549796 U CN211549796 U CN 211549796U
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- China
- Prior art keywords
- seal heater
- inlet pipeline
- pipe
- exhaust inlet
- shaft seal
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- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 210000004907 gland Anatomy 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 230000002026 carminative effect Effects 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a drainage system of a shaft seal heater of a power plant, which comprises a shaft seal heater, wherein a low-level water tank is arranged at the lower side of the shaft seal heater, the low-level water tank is connected with a condenser through a first water pipe, and the upper part of the shaft seal heater is connected with a main exhaust inlet pipeline, the utility model is provided with the shaft seal heater, the lower side of the shaft seal heater is provided with the low-level water tank, the low-level water tank is connected with the condenser through the first water pipe, and an automatic steam trap is arranged on the first water pipe, so that the opening of the automatic steam trap can allow condensed water stored in the low-level water tank to be discharged to the condenser and prevent steam from passing through, the design of a pipeline system from the shaft seal heater to the condenser is optimized, the drainage system has the functions of adjusting and stabilizing the water level of the shaft, and possess water catch bowl and drain pipe, prevented that the interior vapor of blast pipe from causing ponding.
Description
Technical Field
The utility model relates to a drainage technical field specifically is a power plant's bearing seal heater drainage system.
Background
The shaft seal heater is an important heat exchange device in a shaft seal system of a steam turbine, and has the functions of collecting steam seal leakage at the shaft end of each cylinder of the steam turbine and valve rod leakage of the steam turbine and heating main condensation water by using the heat energy of the steam. Since these vapors also contain air, when they release heat in the gland seal heater, the vapors condense into water, and the air needs to be vented. Therefore, the energy of the steam leakage is utilized, the working medium is recycled, the economical efficiency of the turbine thermodynamic system is improved, air is separated, the normal work of the shaft seal system is ensured, and the phenomenon that the steam leaks into a steam engine room and an oil system from the end steam seal to pollute the environment and destroy the oil quality is prevented.
The drainage system of traditional bearing seal heater considers condenser vacuum environment and extremely low operating pressure, often uses multistage water seal U-shaped pipe to carry out soda isolation, but it has the problem that if water level control does not well lead to condenser vacuum to descend that multistage water seal is hydrophobic, and exhaust system ponding easily is difficult to solve simultaneously. For this purpose, we propose a drainage system for a shaft seal heater in a power plant.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a power plant's bearing seal heater drainage system to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a drainage system of a power plant shaft seal heater comprises a shaft seal heater, wherein a low-level water tank is arranged on the lower side of the shaft seal heater and connected with a condenser through a first water pipe, the upper part of the shaft seal heater is connected with a main exhaust inlet pipeline, the right side of the main exhaust inlet pipeline is connected with a first exhaust inlet pipeline and a second exhaust inlet pipeline, an automatic steam trap is arranged on the first water pipe, a first branch is connected onto the first water pipe, automatic valves are respectively arranged on the left side, the right side and the first branch of the automatic steam trap, a liquid level meter is arranged on the right side of the low-level water tank, the low-level water tank is connected with the shaft seal heater through a first connecting pipe, a water collecting tank is arranged on the right side of the second exhaust inlet pipeline, a drain pipe is arranged on the lower side of the water collecting tank, and an exhaust pipe is arranged at the, and a hot well is arranged on the lower side of the condenser.
The purpose of this setting is that opening of automatic steam trap can allow the condensate water of low level water tank storage to discharge to the condenser and prevent the passing through of steam, through optimizing gland seal heater to condenser piping system design, has the function of adjustment and stable gland seal heater water level, increases drainage system's reliability and stability, and gland seal heater's upper portion is equipped with can carminative blast pipe to possess catch basin and drain pipe, prevented that steam in the blast pipe from causing ponding.
Preferably, a third connection pipe is connected to an upper right side of the first exhaust gas inlet duct.
Preferably, the third connecting pipe and the main exhaust inlet pipeline are directly provided with a second connecting pipe.
Preferably, a butterfly valve and an electric valve are arranged on each of the first exhaust inlet pipeline and the second exhaust inlet pipeline.
Preferably, the first exhaust inlet pipeline and the second exhaust inlet pipeline are both provided with a fan.
Preferably, the fan is connected with a second branch respectively, and one end of the second branch is communicated with the drain pipe.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses have the bearing seal heater, the downside of bearing seal heater is equipped with the low level water tank, the low level water tank has the condenser through first water piping connection, be equipped with automatic steam trap on the first water pipe, consequently opening of automatic steam trap can allow the condensate water of low level water tank storage to discharge to the condenser and prevent the passing through of steam, through optimizing bearing seal heater to condenser piping system design, have the function of adjustment and stable bearing seal heater water level, increase drainage system's reliability and stability, the upper portion of bearing seal heater is equipped with the blast pipe that can exhaust to possess water catch bowl and drain pipe, prevented that steam from causing ponding in the blast pipe.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the main exhaust inlet pipe structure of the present invention;
fig. 3 is a schematic view of a first water pipe structure of the present invention.
In the figure: 1. a shaft seal heater; 2. a low level water tank; 3. an automatic steam trap; 4. a condenser; 5. a first water pipe; 6. a primary exhaust gas inlet conduit; 7. a second exhaust gas inlet conduit; 8. a first exhaust gas inlet duct; 9. a second connecting pipe; 10. a butterfly valve; 11. a fan; 12. an electrically operated valve; 13. a drain pipe; 14. a water collection tank; 15. an exhaust pipe; 16. a third connecting pipe; 17. a second branch circuit; 18. a first connecting pipe; 19. a liquid level meter; 20. a first branch; 21. an automatic valve; 22. and (4) a hot well.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a power plant's bearing seal heater drainage system, includes bearing seal heater 1, the downside of bearing seal heater 1 is equipped with low level water tank 2, low level water tank 2 is connected with condenser 4 through first water pipe 5, be equipped with automatic steam trap 3 on the first water pipe 5, be connected with first branch 20 on the first water pipe 5, all be equipped with automatic valve 21 on the left side and the right side of automatic steam trap 3 and the first branch 20, the right side of low level water tank 2 is equipped with level appearance 19, low level water tank 2 is connected with bearing seal heater 1 through first connecting pipe 18.
The opening of the automatic steam trap 3 thus allows the condensed water stored in the low level tank 2 to be discharged to the condenser 4 and prevents the passage of steam.
And a hot well 22 is arranged on the lower side of the condenser 4.
The upper part of the shaft seal heater 1 is connected with a main exhaust inlet pipeline 6, the right side of the main exhaust inlet pipeline 6 is connected with a first exhaust inlet pipeline 8 and a second exhaust inlet pipeline 7, the right side of the second exhaust inlet pipeline 7 is provided with a water collecting tank 14, the lower side of the water collecting tank 14 is provided with a drain pipe 13, and the right end of the second exhaust inlet pipeline 7 is provided with an exhaust pipe 15.
Therefore, the exhaust pipe 15 capable of exhausting air is arranged at the upper part of the shaft seal heater 1, and the water collecting tank 14 and the drain pipe 13 are arranged, so that water accumulation caused by water vapor in the exhaust pipe 15 is prevented.
In order to provide the first exhaust gas inlet duct 8 and the second exhaust gas inlet duct 7 with interoperability, a third connecting pipe 16 is connected to the upper right side of the first exhaust gas inlet duct 8.
The third connecting pipe 16 and the main exhaust inlet pipe 6 are directly provided with a second connecting pipe 9.
In order to control the closing and opening of the first exhaust gas inlet pipe 8 and the second exhaust gas inlet pipe 7, a butterfly valve 10 and an electric valve 12 are arranged on the first exhaust gas inlet pipe 8 and the second exhaust gas inlet pipe 7.
In order to enhance the exhaust performance, a fan 11 is arranged on each of the first exhaust gas inlet pipeline 8 and the second exhaust gas inlet pipeline 7.
The fan 11 is connected with a second branch 17, and one end of the second branch 17 is communicated with the drain pipe 13.
Specifically, during the use, this power plant's bearing seal heater drainage system has bearing seal heater 1, and the downside of bearing seal heater 1 is equipped with low level water tank 2, low level water tank 2 is connected with condenser 4 through first water pipe 5, be equipped with automatic steam trap 3 on the first water pipe 5, consequently opening of automatic steam trap 3 can allow the condensate water of low level water tank 2 storage to discharge to condenser 4 and prevent the passing through of steam, through optimizing bearing seal heater to condenser piping system design, has the function of adjustment and stable bearing seal heater water level, increases drainage system's reliability and stability.
The upper portion of bearing seal heater 1 is connected with main exhaust inlet pipeline 6, the right side of main exhaust inlet pipeline 6 is connected with first exhaust inlet pipeline 8 and second exhaust inlet pipeline 7, the right side of second exhaust inlet pipeline 7 is equipped with water catch bowl 14, the downside of water catch bowl 14 is equipped with drain pipe 13, therefore the upper portion of bearing seal heater 1 is equipped with can carminative blast pipe 15 to possess water catch bowl 14 and drain pipe 13, prevented that vapor in the blast pipe 15 from causing ponding.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a power plant's bearing seal heater drainage system, includes bearing seal heater (1), its characterized in that: the low-level water tank (2) is arranged on the lower side of the shaft seal heater (1), the low-level water tank (2) is connected with a condenser (4) through a first water pipe (5), the upper portion of the shaft seal heater (1) is connected with a main exhaust inlet pipeline (6), the right side of the main exhaust inlet pipeline (6) is connected with a first exhaust inlet pipeline (8) and a second exhaust inlet pipeline (7), an automatic steam trap (3) is arranged on the first water pipe (5), a first branch (20) is connected onto the first water pipe (5), automatic valves (21) are arranged on the left side, the right side and the first branch (20) of the automatic steam trap (3), a liquid level meter (19) is arranged on the right side of the low-level water tank (2), the low-level water tank (2) is connected with the heater (1) through a first connecting pipe (18) in a shaft seal mode, a water collecting tank (14) is arranged on the right side of the second exhaust inlet pipeline (7), the downside of water catch bowl (14) is equipped with drain pipe (13), the right-hand member of second exhaust inlet pipeline (7) is equipped with blast pipe (15), the downside of condenser (4) is equipped with hot-well (22).
2. The power plant gland seal heater drainage system of claim 1, wherein: the upper right side of the first exhaust gas inlet pipe (8) is connected with a third connecting pipe (16).
3. The power plant shaft seal heater drainage system of claim 2, wherein: and a second connecting pipe (9) is directly arranged between the third connecting pipe (16) and the main exhaust inlet pipeline (6).
4. The power plant gland seal heater drainage system of claim 1, wherein: and the first exhaust inlet pipeline (8) and the second exhaust inlet pipeline (7) are respectively provided with a butterfly valve (10) and an electric valve (12).
5. The power plant gland seal heater drainage system of claim 1, wherein: and the first exhaust inlet pipeline (8) and the second exhaust inlet pipeline (7) are both provided with a fan (11).
6. The power plant gland seal heater drainage system of claim 5, wherein: the fan (11) is connected with a second branch (17) respectively, and one end of the second branch (17) is communicated with the drain pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922235824.8U CN211549796U (en) | 2019-12-13 | 2019-12-13 | Drainage system of shaft seal heater of power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922235824.8U CN211549796U (en) | 2019-12-13 | 2019-12-13 | Drainage system of shaft seal heater of power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211549796U true CN211549796U (en) | 2020-09-22 |
Family
ID=72506324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922235824.8U Expired - Fee Related CN211549796U (en) | 2019-12-13 | 2019-12-13 | Drainage system of shaft seal heater of power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211549796U (en) |
-
2019
- 2019-12-13 CN CN201922235824.8U patent/CN211549796U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |