CN220176137U - Device for reducing oil content in bearing oil groove of hydroelectric generating set - Google Patents
Device for reducing oil content in bearing oil groove of hydroelectric generating set Download PDFInfo
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- CN220176137U CN220176137U CN202321114593.5U CN202321114593U CN220176137U CN 220176137 U CN220176137 U CN 220176137U CN 202321114593 U CN202321114593 U CN 202321114593U CN 220176137 U CN220176137 U CN 220176137U
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- filter screen
- oil
- oil groove
- reducing
- exhaust branch
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- 238000001914 filtration Methods 0.000 claims abstract description 12
- 230000008676 import Effects 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 34
- 230000000670 limiting effect Effects 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 48
- 238000001816 cooling Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000826860 Trapezium Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010723 turbine oil Substances 0.000 description 1
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- Sliding-Contact Bearings (AREA)
Abstract
The utility model provides a device for reducing the air content of oil in a bearing oil groove of a hydroelectric generating set, which comprises a pipe body, wherein the inlet end of the pipe body is connected with an oil outlet ball valve of the oil groove, the outlet end of the pipe body is connected with an inlet of an oil pump, a plurality of filter screens with different filtering precision are arranged in the pipe body, the filtering precision of the filter screens is gradually reduced from the inlet end along the outlet end, a plurality of exhaust branch pipes are communicated with the side surface of the pipe body, the number of the exhaust branch pipes is the same as that of the filter screens, each exhaust branch pipe is respectively positioned above each filter screen, the other end of each exhaust branch pipe is connected with an exhaust manifold, and the top end of the exhaust manifold is connected with a respirator higher than the oil groove. Through install the device that reduces fluid gas content additional in deriving outer circulation oil pump import pipeline, filter the bubble in the fluid, then discharge oil pipe reduces the interior gas content of entering oil pump, improves the work efficiency of oil pump, reduces oil pump shaft seal department temperature, improves shaft seal life, ensures the long-term steady operation of unit.
Description
Technical Field
The utility model relates to the field of cooling circulation of a bearing of a hydroelectric generating set, in particular to a device for reducing the air content of oil in an oil groove of the bearing of the hydroelectric generating set.
Background
The hydraulic generator is generally composed of three bearings and a deriving bearing, wherein the upper guide bearing and the lower guide bearing are mainly used for bearing radial force of a rotating part of the unit, limiting horizontal swing of the unit and fixing the rotation center line of the unit; deriving the bearing axial force and the weight of the rotating part; the bearing is therefore very important for a hydro-generator.
At present, an upper oil guide cooling system is an internal circulation system, an oil cooler is a coil type oil cooler and is arranged in an upper oil guide bearing oil retaining cylinder; the thrust bearing and the lower guide bearing share an oil groove, and usually adopt two modes of self-pumping tile and externally-added pump circulation cooling; however, in deriving the additional oil pump cooling mode, oil leakage often occurs at the shaft seal where the oil pump runs for a long time; the main reason is that the turbine oil in the oil groove is excessively stirred, so that the air content is excessively large, and the temperature at the shaft seal part is increased, so that the oil seal is abraded, and oil leakage is caused, and therefore, the device for reducing the air content of the oil in the bearing oil groove of the hydroelectric generating set is provided for solving the problems.
Disclosure of Invention
The utility model mainly aims to provide a device for reducing the oil liquid air content of a bearing oil groove of a hydroelectric generating set, which can greatly reduce the air content of an oil inlet of an oil pump, improve the working efficiency of the oil pump, stabilize the oil temperature and the watt temperature of the set and ensure the long-term stable operation of the set.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a reduce hydroelectric set bearing oil groove fluid gas content's device, which comprises a tube body, the entrance point of body is connected with oil groove play oil ball valve, the exit end is connected with the oil pump import, be provided with the different filter screen of a plurality of filter fineness in the body, the filter fineness of filter screen diminishes along the exit end one by one from the entrance point, the side intercommunication of body is provided with a plurality of exhaust branch, the quantity of exhaust branch is the same with the quantity of filter screen, and every exhaust branch is located every filter screen top respectively, exhaust branch's the other end is connected with exhaust manifold, exhaust manifold's top is connected with the respirator that is higher than the oil groove, all be provided with the valve on every exhaust branch.
In the preferred scheme, the number of the filter screens is three, namely a first-stage filter screen, a second-stage filter screen and a third-stage filter screen.
In the preferred scheme, the filtering precision of the primary filter screen is 20 mu m, the filtering precision of the secondary filter screen is 10 mu m, and the filtering precision of the tertiary filter screen is 5 mu m.
In the preferred scheme, both ends of the pipe body are provided with flanges for connection.
In the preferred scheme, the inside of body is provided with a plurality of sets of installation spouts corresponding and the crisscross distribution of annular with filter screen quantity, and every installation spout of group extends to the mounted position who corresponds the filter screen by the entrance point of body, and every installation spout of group comprises three installation spouts, and the outside of filter screen is provided with three installation sliders with installation spout looks adaptation.
In the preferred scheme, be provided with the elasticity that is used for spacing on the installation slider and block the locking hole that is provided with on the inner wall surface of installation spout bottom and blocks the locking subassembly looks adaptation with elasticity.
In the preferred scheme, the elasticity locking subassembly is including setting up the flexible chamber in the installation slider, and one side that the flexible chamber was kept away from the filter screen is uncovered, is provided with the extension spring in the flexible chamber, and the front end of extension spring is provided with the locking head that runs through uncovered, and the isosceles trapezoid of locking head and locking hole looks adaptation.
The utility model provides a device for reducing the air content of oil in a bearing oil groove of a hydroelectric generating set, which is characterized in that an air content reducing device for oil is additionally arranged in an inlet pipeline of a deduced external circulation oil pump, bubbles in the oil are filtered, then the oil is discharged out of an oil pipe, the air content in the oil pump is reduced, the working efficiency of the oil pump is improved, the temperature of a shaft seal part of the oil pump is reduced, the service life of the shaft seal is prolonged, the long-term stable operation of the set is ensured, the structure is simple and reasonable, the modification amount is small, and the operability is strong.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a cross-sectional view of a first embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a second embodiment of the present utility model;
FIG. 3 is a top view of the inlet end structure of the tube body of the present utility model;
FIG. 4 is a diagram showing the structure of the connection of the filter screen and the mounting slider;
FIG. 5 is a diagram of a filter screen installation structure of the present utility model;
FIG. 6 is an enlarged view of the structure A of FIG. 5 in accordance with the present utility model;
in the figure: a tube body 1; a mounting chute 11; a flange 2; a filter screen 3; a primary filter screen 31; a secondary filter screen 32; a third stage filter screen 33; a mounting slide 34; a telescopic chamber 341; a telescopic spring 342; a locking head 343; a locking hole 344; an exhaust manifold 4; a valve 5; an exhaust branch pipe 6; a respirator 7.
Detailed Description
Example 1
As shown in fig. 1, a device for reducing the air content of oil in a bearing oil groove of a hydroelectric generating set comprises a pipe body 1, wherein the inlet end of the pipe body 1 is connected with the outlet end of an oil outlet ball valve of the oil groove, and the outlet end is connected with an oil pump inlet, so that the pipe body 1 is arranged in an inlet pipeline of a deduction external circulation oil pump.
Be provided with the different filter screen 3 of a plurality of filter fineness in the body 1, the filter fineness of filter screen 3 diminishes from the entrance point along the exit end one by one, and the side intercommunication of body 1 is provided with a plurality of exhaust branch pipe 6, and the quantity of exhaust branch pipe 6 is the same with the quantity of filter screen 3, and every exhaust branch pipe 6 is located every filter screen 3 top respectively, and the other end of exhaust branch pipe 6 is connected with exhaust manifold 4, and exhaust manifold 4's top is connected with the respirator 7 that is higher than the oil groove, all is provided with valve 5 on every exhaust branch pipe 6.
When the device is used, bubbles in oil liquid are subjected to multistage filtration through the oil liquid passing through the plurality of filter screens 3, and gas is led into the respirator 7 through the exhaust manifold 4 and discharged through the exhaust branch pipe 6, so that the effect of reducing the gas content is realized.
In this embodiment, the number of the filter screens 3 is three, namely a primary filter screen 31, a secondary filter screen 32 and a tertiary filter screen 33;
wherein, the filtering precision of the first-stage filter screen 31 is 20 μm, the filtering precision of the second-stage filter screen 32 is 10 μm, and the filtering precision of the third-stage filter screen 33 is 5 μm.
In a preferred embodiment, flanges 2 for connection are provided at both ends of the pipe body 1.
Example 2
As further described in connection with embodiment 1, as shown in fig. 2-6, a plurality of groups of installation sliding grooves 11 corresponding to the number of the filter screens 3 and distributed in a circular staggered manner are arranged in the pipe body 1, each group of installation sliding grooves 11 extends from the inlet end of the pipe body 1 to the installation position corresponding to the filter screen 3, each group of installation sliding grooves 11 is composed of three installation sliding grooves 11, and three installation sliding blocks 34 matched with the installation sliding grooves 11 are arranged outside the filter screen 3.
In this embodiment, the installation chute 11 has three groups, the three groups of installation chute 11 correspond to three filter screens 3 respectively, the depths of the three groups of installation chute 11 correspond to the installation depths of the three filter screens 3 respectively, and the inlet end of the pipe body 1 is provided with a mark corresponding to each group of installation chute 11, so that the filter screens 3 can be conveniently identified and placed.
In use, three mounting sliders 34 of the filter screen 3 are aligned with the corresponding mounting sliding grooves 11 and put in until the filter screen 3 slides to the bottom end of the mounting sliding groove 11.
In the preferred embodiment, the installation slider 34 is fixedly provided with an elastic locking component for limiting, and the inner wall surface of the bottom end of the installation chute 11 is provided with a locking hole 344 adapted to the elastic locking component.
Wherein, the elastic locking assembly comprises a telescopic cavity 341 arranged in an installation sliding block 34, one side of the telescopic cavity 341 away from the filter screen 3 is open, a telescopic spring 342 is arranged in the telescopic cavity 341, the front end of the telescopic spring 342 is provided with a locking head 343 penetrating through the opening, two ends of the telescopic spring 342 are fixedly connected with the inner wall surface of the telescopic cavity 341 and the locking head 343 respectively, thereby the locking head 343 is inserted into a locking hole 344 to achieve the limiting effect, the locking head 343 and the locking hole 344 are isosceles trapezium matched with each other, and therefore, when the filter screen 3 is taken out, the locking head 343 can be contracted by applying a certain upward force through a hook, the limiting is released, and the filter screen 3 is taken out.
The above embodiments are only preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the scope of the present utility model should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (7)
1. Device for reducing bearing oil groove oil gas content of hydroelectric generating set, characterized by: including body (1), the entrance point of body (1) is connected with oil groove play oil ball valve, the exit end is connected with the oil pump import, be provided with filter screen (3) that a plurality of filter fineness is different in body (1), filter fineness of filter screen (3) diminishes along the exit end one by one from the entrance point, the side intercommunication of body (1) is provided with a plurality of exhaust branch pipe (6), the quantity of exhaust branch pipe (6) is the same with the quantity of filter screen (3), and every exhaust branch pipe (6) are located every filter screen (3) top respectively, the other end of exhaust branch pipe (6) is connected with exhaust manifold (4), the top of exhaust manifold (4) is connected with respirator (7) that are higher than the oil groove, all be provided with valve (5) on every exhaust branch pipe (6).
2. The device for reducing the oil content of the bearing oil groove of the hydroelectric generating set according to claim 1, wherein the device is characterized in that: the number of the filter screens (3) is three, and the filter screens are a primary filter screen (31), a secondary filter screen (32) and a tertiary filter screen (33) respectively.
3. The device for reducing the oil content of the bearing oil groove of the hydroelectric generating set according to claim 2, wherein the device is characterized in that: the filtering precision of the primary filter screen (31) is 20 mu m, the filtering precision of the secondary filter screen (32) is 10 mu m, and the filtering precision of the tertiary filter screen (33) is 5 mu m.
4. The device for reducing the oil content of the bearing oil groove of the hydroelectric generating set according to claim 1, wherein the device is characterized in that: the two ends of the pipe body (1) are provided with flanges (2) for connection.
5. A device for reducing the oil content of a bearing oil groove of a hydro-generator set according to any one of claims 1-3, characterized in that: the inside of body (1) is provided with a plurality of sets of installation spout (11) corresponding and the crisscross distribution of annular of filter screen (3) quantity, and every installation spout (11) of group extends to the mounted position who corresponds filter screen (3) by the entrance point of body (1), and every installation spout (11) of group comprises three installation spout (11), and the outside of filter screen (3) is provided with three installation slider (34) with installation spout (11) looks adaptation.
6. The device for reducing the oil content of the bearing oil groove of the hydro-generator set according to claim 5, wherein the device is characterized by: the installation slider (34) is provided with an elastic locking component for limiting, and the inner wall surface of the bottom end of the installation chute (11) is provided with a locking hole (344) matched with the elastic locking component.
7. The device for reducing the oil content of the bearing oil groove of the hydro-generator set according to claim 6, wherein the device is characterized by: the elastic locking assembly comprises a telescopic cavity (341) arranged in an installation sliding block (34), one side, away from the filter screen (3), of the telescopic cavity (341) is open, a telescopic spring (342) is arranged in the telescopic cavity (341), the front end of the telescopic spring (342) is provided with an opening locking head (343) penetrating through the opening, and the locking head (343) and the locking hole (344) are all isosceles trapezoids in fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321114593.5U CN220176137U (en) | 2023-05-10 | 2023-05-10 | Device for reducing oil content in bearing oil groove of hydroelectric generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321114593.5U CN220176137U (en) | 2023-05-10 | 2023-05-10 | Device for reducing oil content in bearing oil groove of hydroelectric generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220176137U true CN220176137U (en) | 2023-12-15 |
Family
ID=89114335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321114593.5U Active CN220176137U (en) | 2023-05-10 | 2023-05-10 | Device for reducing oil content in bearing oil groove of hydroelectric generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220176137U (en) |
-
2023
- 2023-05-10 CN CN202321114593.5U patent/CN220176137U/en active Active
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