CN215927486U - Inside dehumidification and rust-resistant device of steam turbine bearing box - Google Patents
Inside dehumidification and rust-resistant device of steam turbine bearing box Download PDFInfo
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- CN215927486U CN215927486U CN202122725418.7U CN202122725418U CN215927486U CN 215927486 U CN215927486 U CN 215927486U CN 202122725418 U CN202122725418 U CN 202122725418U CN 215927486 U CN215927486 U CN 215927486U
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- Prior art keywords
- pipeline
- bearing box
- steam turbine
- rust
- side bearing
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims description 12
- 238000007791 dehumidification Methods 0.000 title claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 9
- 230000002401 inhibitory effect Effects 0.000 claims 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 10
- 239000007789 gas Substances 0.000 abstract description 6
- 239000011261 inert gas Substances 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a dehumidifying and antirust device in a bearing box of a steam turbine, wherein one end of a first pipeline is communicated with the interior of a bearing box on a driving side, one end of a third pipeline is communicated with the interior of a bearing box on an undriven side, the other ends of the first pipeline and the third pipeline are respectively communicated with the two ends of a second pipeline, a filtering and reducing valve is arranged at the inlet end of a fourth pipeline, the inlet end of the filtering and reducing valve is communicated with a nitrogen storage tank through a fifth pipeline, the nitrogen storage tank is used for providing a nitrogen source, and a proper amount of inert gas such as nitrogen is introduced into the bearing box on the driving side and the bearing box on the undriven side to fill the inner cavities of the bearing box on the driving side and the bearing box on the undriven side so as to replace and discharge internal air or other corrosive gases, so that the rusting of metal parts can be effectively slowed down or prevented.
Description
Technical Field
The utility model relates to the technical field of dehumidification of a turbine bearing box, in particular to a dehumidification and rust prevention device for the interior of the turbine bearing box.
Background
When the steam turbine is located in severe outdoor environments such as salt fog or high coastal humidity, dehumidification and rust prevention are very important no matter the steam turbine is operated or is in a standby state for a long time. The outer surface of the steam turbine component can be subjected to rust prevention treatment by painting and the like, but the method is not suitable for rust prevention of key components such as a steam turbine main shaft, a bearing and the like in a bearing box, so that a proper dehumidification and rust prevention device which is convenient to operate is needed.
Disclosure of Invention
The utility model aims to provide a dehumidifying and rust-preventing device in a bearing box of a steam turbine, which can effectively slow down or prevent metal parts from rusting and solve the problems in the prior art by introducing a proper amount of inert gas such as nitrogen into a drive side bearing box and a non-drive side bearing box to fill the inner cavities of the drive side bearing box and the non-drive side bearing box with the inert gas, and replacing and discharging the internal air or other corrosive gas.
In order to achieve the purpose, the utility model provides the following technical scheme: a dehumidification and rust prevention device for the interior of a bearing box of a steam turbine comprises a steam turbine cylinder 1, a blade rotor 2 is arranged in the steam turbine cylinder 1, the two ends of the rotor shaft 3 of the vane rotor 2 are respectively rotatably supported by bearings 6 arranged in a drive side bearing box 4 and a non-drive side bearing box 5, and the vane rotor further comprises a first pipeline 7, a third pipeline 11 and a fourth pipeline 14, one end of the first duct 7 communicates with the inside of the drive-side bearing housing 4, one end of the third duct 11 communicates with the inside of the non-drive-side bearing housing 5, the other ends of the first pipeline 7 and the third pipeline 11 are respectively communicated with two ends of a second pipeline 9, the inlet end of the fourth pipeline 14 is provided with a filter pressure reducing valve 15, the inlet end of the filter pressure reducing valve 15 is communicated with a nitrogen storage tank 18 through a fifth pipeline 17, and the nitrogen storage tank 18 is used for providing a nitrogen source.
Further: a first flow meter 8 is arranged between the first pipeline 7 and the second pipeline 9; a second flow meter 10 is arranged between the third pipe 11 and the second pipe 9.
Further: a pressure gauge 12 is arranged on the fourth pipeline 14 in a bypass mode, and a first needle valve 13 is arranged between the pressure gauge 12 and the fourth pipeline 14.
Further: and a second needle valve 16 is arranged on the fifth pipeline 17.
The utility model has the beneficial effects that: the utility model provides a dehumidifying and rust-preventing device in a bearing box of a steam turbine, which can effectively slow down or prevent metal parts from rusting by introducing a proper amount of inert gas such as nitrogen into a bearing box on a driving side and a bearing box on a non-driving side, filling the inert gas into inner cavities of the bearing box on the driving side and the bearing box on the non-driving side, and replacing and discharging internal air or other corrosive gas.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a dehumidifying and rust-preventing apparatus for a bearing housing of a steam turbine includes a steam turbine cylinder 1, a vane rotor 2 is installed in the steam turbine cylinder 1, both ends of a rotor shaft 3 of the vane rotor 2 are rotatably supported by bearings 6 installed in a drive-side bearing housing 4 and a non-drive-side bearing housing 5, respectively, and further includes a first pipe 7, a third pipe 11, and a fourth pipe 14, one end of the first pipe 7 is communicated with the interior of the drive-side bearing housing 4, one end of the third pipe 11 is communicated with the interior of the non-drive-side bearing housing 5, the other ends of the first pipe 7 and the third pipe 11 are communicated with both ends of a second pipe 9, respectively, an inlet end of the fourth pipe 14 is installed with a filtering and pressure reducing valve 15, an inlet end of the filtering and pressure reducing valve 15 is communicated with a nitrogen gas storage tank 18 through a fifth pipe 17, the nitrogen gas storage tank 18 is used for providing a source of nitrogen gas, such that, by introducing a proper amount of inert gas such as nitrogen gas into the drive-side bearing housing 4 and the non-drive-side bearing housing 5, the drive side bearing box 4 and the non-drive side bearing box inner cavity 5 are filled with the nitrogen gas, the internal air or other corrosive gas is replaced and exhausted, the rusting of metal parts can be effectively slowed down or prevented, and the clean nitrogen gas supply can be realized under proper and stable pressure through the filtering pressure reducing valve.
Preferably: a first flowmeter 8 is arranged between the first pipeline 7 and the second pipeline 9; a second flow meter 10 is arranged between the third pipeline 11 and the second pipeline 9, and both the first flow meter 8 and the second flow meter 10 are adjustable flow meters, so that on one hand, the amount of introduced nitrogen can be visually observed, and on the other hand, the flow rate of gas can be conveniently adjusted.
Preferably: pressure gauge 12 is installed to the bypass on fourth pipeline 14, has installed first needle valve 13 between pressure gauge 12 and the fourth pipeline 14, and pressure gauge 12 is used for conveniently observing the pressure value of letting in gas.
Preferably: the fifth pipeline 17 is provided with a second needle valve 16, and the needle valve 16 is used for cutting off a pipeline in abnormal conditions or during maintenance of the device, so that the control is convenient.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an inside dehumidification of steam turbine bearing box and rust-resistant device, includes steam turbine cylinder (1), built-in blade rotor (2) that are equipped with in steam turbine cylinder (1), bearing (6) that set up by drive side bearing box (4) and non-drive side bearing box (5) respectively rotate the support, its characterized in that at the rotor shaft (3) both ends of blade rotor (2): still include first pipeline (7), third pipeline (11) and fourth pipeline (14), first pipeline (7) one end with drive side bearing box (4) inside intercommunication, third pipeline (11) one end with non-drive side bearing box (5) inside intercommunication, first pipeline (7) with the other end of third pipeline (11) communicates with the both ends of second pipeline (9) respectively, filter relief valve (15) have been installed to fourth pipeline (14) entrance point, the entrance point of filter relief valve (15) is through fifth pipeline (17) and nitrogen gas storage tank (18) intercommunication, nitrogen gas storage tank (18) are used for providing the nitrogen gas source.
2. The steam turbine bearing housing interior dehumidifying and rust inhibiting apparatus according to claim 1, wherein: a first flowmeter (8) is arranged between the first pipeline (7) and the second pipeline (9); a second flowmeter (10) is arranged between the third pipeline (11) and the second pipeline (9).
3. The steam turbine bearing housing interior dehumidifying and rust inhibiting apparatus according to claim 1, wherein: manometer (12) have been installed to the bypass on fourth pipeline (14), manometer (12) with first needle valve (13) have been installed between fourth pipeline (14).
4. The steam turbine bearing housing interior dehumidifying and rust inhibiting apparatus according to claim 1, wherein: and a second needle valve (16) is arranged on the fifth pipeline (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122725418.7U CN215927486U (en) | 2021-11-09 | 2021-11-09 | Inside dehumidification and rust-resistant device of steam turbine bearing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122725418.7U CN215927486U (en) | 2021-11-09 | 2021-11-09 | Inside dehumidification and rust-resistant device of steam turbine bearing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215927486U true CN215927486U (en) | 2022-03-01 |
Family
ID=80404561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122725418.7U Active CN215927486U (en) | 2021-11-09 | 2021-11-09 | Inside dehumidification and rust-resistant device of steam turbine bearing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215927486U (en) |
-
2021
- 2021-11-09 CN CN202122725418.7U patent/CN215927486U/en active Active
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