CN211343039U - Manual turning tool for steam turbine of nuclear power station - Google Patents
Manual turning tool for steam turbine of nuclear power station Download PDFInfo
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- CN211343039U CN211343039U CN201922434662.0U CN201922434662U CN211343039U CN 211343039 U CN211343039 U CN 211343039U CN 201922434662 U CN201922434662 U CN 201922434662U CN 211343039 U CN211343039 U CN 211343039U
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Abstract
The utility model belongs to the technical field of mechanical equipment, concretely relates to manual barring instrument of nuclear power station steam turbine. The tool includes a manual barring rotating component and a manual barring engaging component cooperating therewith. The manual barring meshing part comprises a nitrogen cylinder, a hose, a pressure reducing valve and an isolating valve; the manual barring rotating part comprises a sleeve, a connecting rod, a handle and a rotating rod. When the steam turbine barring system fails, the device is used for barring the rotor by using a manual barring so as to eliminate thermal bending of the rotor; when the steam turbine shafting is overhauled, the rotor is manually driven, the measurement precision is improved, and the overhaul period is shortened. The device of the utility model has simple operation, convenient use and low maintenance cost; the utility model can quickly turn the vehicle, and eliminate the damage risk of the turbine rotor; the utility model discloses the device moves the rotor and carries out data measurement when steam turbine shafting overhauls, saves man-hour, improves the precision.
Description
Technical Field
The utility model belongs to the technical field of mechanical equipment, concretely relates to manual barring instrument of nuclear power station steam turbine.
Background
The effect of the steam turbine turning gear is as follows: after the steam turbine generator unit is shut down, because heat is not dissipated in time, the temperature difference exists between the upper part and the lower part of the cylinder, if the rotor is still, the rotor can be thermally bent, in order to avoid the thermal bending of the rotor, the turning gear enables the rotor to continuously rotate at a certain speed before the steam turbine is started and after the steam turbine is shut down, and the uniform heating and cooling of the rotor are ensured;
the longer duration of the continuous barring eliminates the non-permanent flexing caused by long periods of unit down time and storage or other reasons.
If the steam turbine stops, the barring trouble, unable dish moves the rotor, can make the rotor hot bending, cause the great equipment damage, need a manual barring instrument, guarantee that the rotor rotates.
In addition, during the steam turbine shafting maintenance period, the rotor can be coiled by the manual barring tool, the shafting center measurement is carried out, the measurement precision is greatly improved, and the maintenance period is shortened.
Generally, if the barring is unavailable, the common method is to disassemble a rotating shaft protective cover and use a sling or a steel wire rope for driving barring, so that the preparation time is long, the workload is large, and continuous barring cannot be guaranteed.
A novel turbine barring system of a certain nuclear power station adopts vertical barring, a barring motor is erected above a turbine front box, and a shaft hexagon nut is arranged at the end part of a motor shaft;
the system is provided with an air source, the air source acts on a barring meshing cylinder, a barring pinion is meshed with a steam turbine rotating shaft gearwheel, and a motor is started to drive the steam turbine rotating shaft to rotate.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a manual barring tool for a steam turbine of a nuclear power station, which is used for barring a rotor by utilizing a manual barring when a steam turbine barring system has a fault, so as to eliminate thermal bending of the rotor; when the steam turbine shafting is overhauled, the rotor is manually driven, the measurement precision is improved, and the overhaul period is shortened.
The utility model discloses a utility model content as follows:
a manual turning tool for a steam turbine of a nuclear power station comprises a manual turning rotating component and a manual turning engaging component matched with the manual turning rotating component.
A manual turning tool for a steam turbine of a nuclear power station is disclosed, wherein a manual turning meshing part comprises a nitrogen cylinder, a hose, a pressure reducing valve and an isolation valve; the manual barring rotating part comprises a sleeve, a connecting rod, a handle and a rotating rod.
The utility model provides a manual barring instrument of nuclear power station steam turbine, in the manual barring meshing part, barring meshing cylinder is connected with isolation valve one end, and the isolation valve other end is connected with the relief pressure valve, and the relief pressure valve other end passes through the hose and links to each other with the nitrogen cylinder.
A manual turning tool for a steam turbine of a nuclear power station is characterized in that in a manual turning rotating part, handles are arranged at two ends of a rotating rod, the rotating rod and a connecting rod are vertically arranged at an angle of 90 degrees, and the rotating rod can rotate 360 degrees in the horizontal direction by taking the connecting rod as a circle center; the other end of the connecting rod is provided with a sleeve, and the sleeve is sleeved on a shaft hexagon of a motor of the turning gear system.
A manual turning tool for a steam turbine of a nuclear power station is characterized in that a nitrogen cylinder is a common steel cylinder, high-pressure nitrogen is filled in the nitrogen cylinder, and the nitrogen cylinder is stored beside a steam turbine turning system.
The utility model provides a manual barring instrument of nuclear power station steam turbine, the hose link to each other relief pressure valve, isolating valve, inside has high-pressure nitrogen gas, can transport into in barring meshing cylinder with nitrogen gas.
The pressure reducing valve can reduce the pressure of nitrogen at the outlet of a gas cylinder to the pressure required by a turning system.
The utility model provides a manual barring instrument of nuclear power station steam turbine, isolation promptly keep apart under emergency condition, the disconnection barring meshing cylinder air supply makes the gear throw off, places barring system in the mounted state.
A manual turning tool for a steam turbine of a nuclear power station is characterized in that a sleeve is matched with a hexagonal nut of a motor shaft of a turning system, and a connecting rod is sleeved above the sleeve and used for transmitting torque; the rotating rod is inserted above the connecting rod and connected into a whole; the handle is sleeved into the two ends of the rotating rod.
The utility model has the advantages as follows:
1) the device of the utility model has simple operation, convenient use and low maintenance cost;
2) the utility model can quickly turn the vehicle, and eliminate the damage risk of the turbine rotor;
3) the utility model discloses the device moves the rotor and carries out data measurement when steam turbine shafting overhauls, saves man-hour, improves the precision.
Drawings
Fig. 1 is a schematic view of a manual barring engaging component of the present invention;
fig. 2 is a schematic view of the rotating part of the hand-operated barring gear of the present invention.
In the figure: 1. a nitrogen gas cylinder; 2. a hose; 3. a pressure reducing valve; 4. an isolation valve; 5. a sleeve; 6. a connecting rod; 7. a handle; 8. rotating the rod.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments:
the manual turning tool for the steam turbine of the nuclear power station as shown in the figures 1-2 comprises a manual turning rotating part and a manual turning engaging part matched with the manual turning rotating part; the manual barring meshing part comprises a nitrogen cylinder 1, a hose 2, a pressure reducing valve 3 and an isolating valve 4; the manual barring rotating part comprises a sleeve 5, a connecting rod 6, a handle 7 and a rotating rod 8.
In the manual barring meshing part, a barring meshing cylinder is connected with one end of an isolation valve 4, the other end of the isolation valve 4 is connected with a pressure reducing valve 3, and the other end of the pressure reducing valve 3 is connected with a nitrogen cylinder 1 through a hose 2.
In the manual barring rotating part, the handles 7 are arranged at two ends of the rotating rod 8, the rotating rod 8 and the connecting rod 6 are vertically arranged at an angle of 90 degrees, and the rotating rod 8 can rotate at an angle of 360 degrees in the horizontal direction by taking the connecting rod 6 as a circle center; the other end of the connecting rod 6 is provided with a sleeve 5, and the sleeve 5 is sleeved on a shaft hexagon of a motor of the barring gear system.
The nitrogen cylinder 1 is a common steel cylinder, is filled with high-pressure nitrogen and is stored beside a turbine barring system.
As shown in fig. 1, the hose 2 connects the pressure reducing valve 3 and the isolation valve 4, and high-pressure nitrogen gas is contained in the hose, and the nitrogen gas can be conveyed into the barring gear meshing cylinder. The pressure reducing valve 3 can reduce the pressure of the nitrogen at the outlet of the gas cylinder to the pressure required by the barring gear system. The isolation 4 can be isolated emergently in an emergency state, and the air source of the barring meshing cylinder is disconnected, so that the gear is disconnected, and the barring system is placed in an installation state.
As shown in fig. 2, the sleeve 5 is matched with a hexagonal nut of a motor shaft of the turning system, and the connecting rod 6 is sleeved above the sleeve 5 and used for transmitting torque; the rotating rod 8 is inserted above the connecting rod 6 and connected into a whole; the handle 7 is sleeved at two ends of the rotating rod 8.
The manual barring process: when the turning is carried out manually, the isolation valve 4 is opened, the pressure reducing valve 3 is adjusted, and gas enters the turning engaging cylinder to enable the turning pinion to be engaged with the steam turbine rotating shaft gearwheel; the hand is acted on the handle 7, the rotating rod 8 is rotated, the force is transmitted into the sleeve 5 through the connecting rod 6, the locomotive system motor is driven to rotate, and therefore the rotating shaft of the steam turbine is driven.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, improvement, simplification and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a manual barring instrument of nuclear power station steam turbine which characterized in that: the tool includes a manual barring rotating component and a manual barring engaging component cooperating therewith.
2. The manual turning tool for the steam turbine of the nuclear power plant as claimed in claim 1, wherein: the manual barring meshing part comprises a nitrogen cylinder, a hose, a pressure reducing valve and an isolating valve; the manual barring rotating part comprises a sleeve, a connecting rod, a handle and a rotating rod.
3. The manual turning tool for the steam turbine of the nuclear power plant as claimed in claim 2, wherein: in the manual barring meshing part, a barring meshing cylinder is connected with one end of an isolation valve, the other end of the isolation valve is connected with a pressure reducing valve, and the other end of the pressure reducing valve is connected with a nitrogen cylinder through a hose.
4. The manual turning tool for the steam turbine of the nuclear power plant as claimed in claim 2, wherein: in the manual barring rotating part, handles are arranged at two ends of a rotating rod, the rotating rod and a connecting rod are vertically arranged at an angle of 90 degrees, and the rotating rod can rotate at an angle of 360 degrees in the horizontal direction by taking the connecting rod as a circle center; the other end of the connecting rod is provided with a sleeve, and the sleeve is sleeved on a shaft hexagon of a motor of the turning gear system.
5. The manual turning tool for the steam turbine of the nuclear power plant as claimed in claim 2, wherein: the nitrogen cylinder is a common steel cylinder, is filled with high-pressure nitrogen and is stored beside the steam turbine barring system.
6. The manual turning tool for the steam turbine of the nuclear power plant as claimed in claim 2, wherein: the hose connects relief pressure valve, isolation valve, and inside has high-pressure nitrogen gas, can transport nitrogen gas into barring meshing cylinder.
7. The manual turning tool for the steam turbine of the nuclear power plant as claimed in claim 2, wherein: the pressure reducing valve can reduce the pressure of the nitrogen at the outlet of the gas cylinder to the pressure required by the barring gear system.
8. The manual turning tool for the steam turbine of the nuclear power plant as claimed in claim 2, wherein: the isolation can be isolated emergently in an emergency state, the barring meshing air cylinder air source is disconnected, the gear is disconnected, and the barring system is placed in an installation state.
9. The manual turning tool for the steam turbine of the nuclear power plant as claimed in claim 2, wherein: the sleeve is matched with a hexagonal nut of a motor shaft of the turning system, and the connecting rod is sleeved above the sleeve and used for transmitting torque; the rotating rod is inserted above the connecting rod and connected into a whole; the handle is sleeved into the two ends of the rotating rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922434662.0U CN211343039U (en) | 2019-12-30 | 2019-12-30 | Manual turning tool for steam turbine of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922434662.0U CN211343039U (en) | 2019-12-30 | 2019-12-30 | Manual turning tool for steam turbine of nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211343039U true CN211343039U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922434662.0U Active CN211343039U (en) | 2019-12-30 | 2019-12-30 | Manual turning tool for steam turbine of nuclear power station |
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| Country | Link |
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| CN (1) | CN211343039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761744A (en) * | 2021-01-26 | 2021-05-07 | 东方电气集团东方汽轮机有限公司 | Independent manual barring gear and barring structure |
-
2019
- 2019-12-30 CN CN201922434662.0U patent/CN211343039U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761744A (en) * | 2021-01-26 | 2021-05-07 | 东方电气集团东方汽轮机有限公司 | Independent manual barring gear and barring structure |
| CN112761744B (en) * | 2021-01-26 | 2022-09-27 | 东方电气集团东方汽轮机有限公司 | Independent manual barring gear and barring structure |
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