CN210164568U - Through-flow type hydroelectric generating set bearing oil return box structure for reducing oil mist formation - Google Patents
Through-flow type hydroelectric generating set bearing oil return box structure for reducing oil mist formation Download PDFInfo
- Publication number
- CN210164568U CN210164568U CN201920627453.5U CN201920627453U CN210164568U CN 210164568 U CN210164568 U CN 210164568U CN 201920627453 U CN201920627453 U CN 201920627453U CN 210164568 U CN210164568 U CN 210164568U
- Authority
- CN
- China
- Prior art keywords
- oil return
- oil
- pipe
- cavity
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
A through-flow type hydroelectric generating set bearing oil return box structure for reducing oil mist formation is characterized in that the oil return box comprises an oil return box cavity, an output oil pump and an oil return pipe; the oil return tank cavity is of a closed cavity structure, the output oil pump is arranged on the oil return tank cavity, and an oil outlet pipe of the output oil pump extends into the oil return tank cavity; the oil return pipe comprises an oil return pipe opening and an oil return pipe pipeline, the oil return pipe opening is arranged on the oil return box cavity, and the oil return pipe pipeline is arranged inside the oil return box cavity. The output oil pump comprises a plurality of low-pressure oil pumps and a plurality of high-pressure oil pumps. Because the oil return pipe is made of heat conducting materials, when lubricating oil with a certain temperature enters the oil return box, the bent pipeline prolongs the moving path of the lubricating oil, so that the lubricating oil with the temperature can be quickly radiated, and the system disorder in the cavity of the oil return box caused by the gathering of the overheated lubricating oil at local parts is avoided.
Description
Technical Field
The utility model relates to an oil return tank, concretely relates to through-flow hydraulic generator set bearing oil return tank structure for reducing oil mist formation.
Background
The through-flow turbine generator set needs lubricating oil to lubricate the bearing when in operation, the lubricating oil is provided by a bearing oil return tank, passes through the combined bearing of the generator set and the turbine guide bearing and finally returns to the bearing oil return tank. And the in-process of oil circuit circulation, lubricating oil can take away the heat that produces by main shaft and bearing friction, consequently gets back to the oil temperature of bearing in the oil return case than higher, and lubricating oil flows to the bearing oil return case with the mode of flowing automatically, and has certain speed, constantly strikes the oil return case at quick, high temperature to constantly surge when falling into the oil tank, and then form gaseous oil mist in the bearing oil return case.
The influence of oil mist on the insulation of the generator rotor is very serious, and the normal operation of a unit is seriously influenced by the accident shutdown case of the one-point grounding protection action of the rotor in other hydropower stations, and a large amount of manpower, material resources and financial resources are consumed to solve the problem. On the other hand, the oil mist is fully distributed on the whole operation layer, the inspection platform and the corridor layer in the operation process of the unit, the environmental pollution of a factory building is serious, and the inspection of equipment causes great potential safety hazards.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves is: a through-flow hydro-turbo generator set bearing oil return box structure for reducing oil mist formation is provided.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a through-flow type hydroelectric generating set bearing oil return box structure for reducing oil mist formation is characterized in that the oil return box comprises an oil return box cavity, an output oil pump and an oil return pipe; the oil return tank cavity is of a closed cavity structure, the output oil pump is arranged on the oil return tank cavity, and an oil outlet pipe of the output oil pump extends into the oil return tank cavity; the oil return pipe comprises an oil return pipe opening and an oil return pipe pipeline, the oil return pipe opening is arranged on the oil return box cavity, and the oil return pipe pipeline is arranged inside the oil return box cavity.
Further, the output oil pump comprises a plurality of low-pressure oil pumps and a plurality of high-pressure oil pumps.
Further, the low-pressure oil pump includes the low-pressure oil pump body and low-pressure oil pump goes out oil pipe, the low-pressure oil pump body sets up it is in to return oil tank cavity top, the low-pressure oil pump goes out oil pipe and stretches into inside the oil tank cavity, wherein, the port department that the low-pressure oil pump goes out oil pipe immerses below the inside conventional liquid level of oil tank cavity.
Further, the high-pressure oil pump comprises a high-pressure pump body, a high-pressure oil pump outlet pipe and an overflow pipe; the high-pressure oil pump is arranged below the side of the oil return tank cavity, an oil outlet pipe of the high-pressure oil pump extends into the oil return tank cavity, and the port of the oil outlet pipe of the low-pressure oil pump is immersed below the conventional liquid level in the oil return tank cavity; an overflow pipe is arranged in the high-pressure oil pump, and an oil outlet end of the overflow pipe is arranged at the top of the oil return tank cavity.
Furthermore, the oil return pipe comprises an oil return pipe orifice and an oil return pipe pipeline connected with the oil return pipe orifice, the oil return pipe orifice is arranged to be a connecting flange, the flange plate is arranged outside the oil return box cavity, the pipe orifice is extended into the oil return box cavity, and the oil return pipe orifice is fixedly connected with the oil return box cavity; one end of the oil return pipe is connected to the oil return pipe opening, and the other end of the oil return pipe is an oil outlet end; the oil return pipe is fixed inside the oil return box cavity through a fixing frame.
Further, the oil return pipe is an "S" type pipe, and comprises: the oil return device comprises a first oil return straight pipe, a first bent part, a second oil return straight pipe, a second bent part, a third oil return straight pipe, a third bent part and an oil return outlet.
Further, the connection sequence of the oil return pipe is as follows in sequence: the oil return device comprises a first oil return straight pipe, a first bent part, a second oil return straight pipe, a second bent part, a third oil return straight pipe, a third bent part and an oil return outlet; wherein, the radian of bending of first kink is 180, the radian of bending of second kink is 180, the radian of bending of third kink is 90.
Further, the oil outlet and the third bending part form an included angle of 45 degrees in space.
Further, the fixing frame comprises a first fixing frame and a second fixing frame, the first fixing frame is fixed on the third oil return straight pipe, and the second fixing frame is fixed on the second oil return straight pipe.
The utility model has the advantages that:
1. lubricating oil is behind unit generator combination bearing and hydraulic turbine guide bearing, and the heat that produces by main shaft and bearing friction can be taken away to lubricating oil, consequently gets back to the oil temperature of bearing oil return case than higher, and lubricating oil is with flowing to the bearing oil return case of flowing automatically, and has certain speed, constantly strikes oil return case at quick, high temperature to constantly surge when falling into the oil tank, and then form gaseous oil mist in the bearing oil return case. The utility model discloses a return oil pipe of buckling, lubricating oil get into behind the pipeline in proper order through first oil return straight tube, first kink, second oil return straight tube, second kink, third oil return straight tube, third kink, finally flow from the oil return export, and the pipeline of buckling has alleviateed the impact force of lubricating oil return to the oil tank, has slowed down the degree of turbulent motion of lubricating oil to below leading its pipeline export to the bearing oil return oil level, reach the effect that the control oil mist produced.
2. Because the oil return pipe is made of heat conducting materials, when lubricating oil with a certain temperature enters the oil return box, the bent pipeline prolongs the moving path of the lubricating oil, so that the lubricating oil with the temperature can be quickly radiated, and the system disorder in the cavity of the oil return box caused by the gathering of the overheated lubricating oil at local parts is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the overall structure schematic diagram of the bearing oil return box of the through-flow type water turbine generator set of the present invention.
FIG. 2 is a cross-sectional view taken along the direction B of FIG. 1 according to the present invention
FIG. 3 is a cross-sectional view taken along the direction C of FIG. 2 according to the present invention
Fig. 4 is a cross-sectional view taken along direction D of fig. 3 according to the present invention.
Wherein:
1. a low pressure oil pump; 2. an oil outlet pipe of the low-pressure oil pump; 3. a high-pressure oil pump; 4. an oil outlet pipe of the high-pressure oil pump;
5. an oil return tank cavity; 6. a frame; 7. an oil return pipe; 8. a fixed mount; 9. a filter;
71. an oil return pipe orifice; 72. a first oil return straight pipe; 73. a first bent portion; 74. a second oil return straight pipe;
75. a second bent portion; 76. a third oil return straight pipe; 77. a third bent portion; 78. an oil return outlet;
81. a first fixing frame; 82. a second fixing frame;
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in figure 1, the through-flow type hydroelectric generating set bearing oil return box structure for reducing oil mist formation is characterized in that the oil return box comprises an oil return box cavity 5, an output oil pump and an oil return pipe 7; the oil return tank cavity 5 is of a closed cavity structure, the output oil pump is arranged on the oil return tank cavity 5, and an oil outlet pipe of the output oil pump extends into the oil return tank cavity 5; the oil return pipe 7 comprises an oil return pipe 7 port and an oil return pipe 7 pipeline, the oil return pipe 7 port is arranged on the oil return box cavity 5, and the oil return pipe 7 pipeline is arranged inside the oil return box cavity 5.
Wherein, the output oil pump includes a plurality of low-pressure oil pumps 1 and a plurality of high-pressure oil pumps 3.
The low-pressure oil pump 1 comprises a low-pressure oil pump 1 body and a low-pressure oil pump 1 oil outlet pipe, wherein the low-pressure oil pump 1 body is arranged at the top of the oil return box cavity 5, the low-pressure oil pump 1 oil outlet pipe extends into the interior of the oil return box cavity 5, and the port of the low-pressure oil pump 1 oil outlet pipe is immersed below a conventional liquid level in the interior of the oil return box cavity 5.
The high-pressure oil pump 3 comprises a high-pressure pump body, an oil outlet pipe of the high-pressure oil pump 3 and an overflow pipe; the high-pressure oil pump 3 is arranged below the side of the oil return tank cavity 5, an oil outlet pipe of the high-pressure oil pump 3 is extended into the oil return tank cavity 5, and an oil outlet pipe port of the low-pressure oil pump 1 is immersed below a conventional liquid level in the oil return tank cavity 5; an overflow pipe is arranged in the high-pressure oil pump 3, and an oil outlet end of the overflow pipe is arranged at the top of the oil return tank cavity 5.
As shown in fig. 2-3, the oil return pipe 7 includes an oil return pipe 7 opening and an oil return pipe 7 pipeline connected to the oil return pipe 7 opening, the oil return pipe 7 opening is configured as a connecting flange, wherein the flange is disposed outside the oil return tank cavity 5, the pipe opening is extended into the oil return tank cavity 5, and the oil return pipe 7 opening is fixedly connected to the oil return tank cavity 5; one end of the oil return pipe 7 is connected to the opening of the oil return pipe 7, and the other end of the oil return pipe is an oil outlet end; the oil return pipe 7 is fixed inside the oil return box cavity 5 through a fixing frame 8.
As shown in fig. 4, the oil return pipe 7 is an "S" type pipe, and includes: a first oil return straight pipe 72, a first bent portion 73, a second oil return straight pipe 74, a second bent portion 75, a third oil return straight pipe 76, a third bent portion 77, and an oil return outlet 78.
The connection sequence of the oil return pipe 7 is as follows: a first oil return straight pipe 72, a first bent portion 73, a second oil return straight pipe 74, a second bent portion 75, a third oil return straight pipe 76, a third bent portion 77, and an oil return outlet 78; the bending radian of the first bent portion 73 is 180 °, the bending radian of the second bent portion 75 is 180 °, and the bending radian of the third bent portion 77 is 90 °. The oil outlet and the third bending part 77 form an included angle of 45 degrees in space.
The fixing frame 8 includes a first fixing frame 818 and a second fixing frame 828, the first fixing frame 818 is fixed to the third oil return straight pipe 76, and the second fixing frame 828 is fixed to the second oil return straight pipe 74.
It should be specially noted that the oil return pipe 7 described in the present invention can also adopt pipelines of other forms, and the requirement mainly satisfied is to adopt a planar bent pipeline or a spatial bent pipeline to increase the moving distance of the lubricating oil; the pipeline extends to below the liquid level.
Preferably, the return outlet 78 of the return pipe 7 is arranged at a distance of 400mm from the liquid level, which is the best effect.
The working mode is as follows:
lubricating oil is behind unit generator combination bearing and hydraulic turbine guide bearing, and the heat that produces by main shaft and bearing friction can be taken away to lubricating oil, consequently gets back to the oil temperature of bearing oil return case than higher, and lubricating oil is with flowing to the bearing oil return case of flowing automatically, and has certain speed, constantly strikes oil return case at quick, high temperature to constantly surge when falling into the oil tank, and then form gaseous oil mist in the bearing oil return case. The utility model discloses an oil pipe 7 that returns of buckling, lubricating oil get into behind the pipeline in proper order through first oil return straight tube 72, first kink 73, second oil return straight tube 74, second kink 75, third oil return straight tube 76, third kink 77, finally flow from oil return export 78. The bending radian of the first bent portion 73 is 180 °, the bending radian of the second bent portion 75 is 180 °, and the bending radian of the third bent portion 77 is 90 °. The oil outlet and the third bending part 77 form an included angle of 45 degrees in space.
The bent pipeline reduces the impact force of the return oil of the lubricating oil on the oil tank, slows down the turbulence degree of the lubricating oil, and leads the outlet of the pipeline to be below the oil level of the return oil of the bearing, thereby achieving the effect of controlling the generation of the oil mist. Because the oil return pipe 7 is made of heat conducting material, when the lubricating oil with a certain temperature enters the oil return box, the bent pipeline prolongs the moving path of the lubricating oil, so that the lubricating oil with the temperature can be quickly radiated, and the system disorder in the oil return box cavity 5 caused by the gathering of the overheated lubricating oil at local parts is avoided.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A through-flow type hydroelectric generating set bearing oil return box structure for reducing oil mist formation is characterized in that the oil return box comprises an oil return box cavity, an output oil pump and an oil return pipe; the oil return tank cavity is of a closed cavity structure, the output oil pump is arranged on the oil return tank cavity, and an oil outlet pipe of the output oil pump extends into the oil return tank cavity; the oil return pipe comprises an oil return pipe opening and an oil return pipe pipeline, the oil return pipe opening is arranged on the oil return box cavity, and the oil return pipe pipeline is arranged inside the oil return box cavity.
2. A through-flow hydro-generator set bearing oil return tank structure for reducing oil mist formation as recited in claim 1 wherein: the output oil pump comprises a plurality of low-pressure oil pumps and a plurality of high-pressure oil pumps.
3. A through-flow hydro-generator set bearing oil return tank structure for reducing oil mist formation as recited in claim 2 wherein: the low-pressure oil pump includes the low-pressure oil pump body and low-pressure oil pump goes out the oil pipe, the low-pressure oil pump body sets up oil return tank cavity top, the low-pressure oil pump goes out the oil pipe and stretches into inside the oil return tank cavity, wherein, the port department that the low-pressure oil pump goes out the oil pipe immerses below the inside conventional liquid level of oil return tank cavity.
4. A through-flow hydro-generator set bearing oil return tank structure for reducing oil mist formation as recited in claim 2 wherein: the high-pressure oil pump comprises a high-pressure pump body, a high-pressure oil pump outlet pipe and an overflow pipe; the high-pressure oil pump is arranged below the side of the oil return tank cavity, an oil outlet pipe of the high-pressure oil pump extends into the oil return tank cavity, and the port of the oil outlet pipe of the low-pressure oil pump is immersed below the conventional liquid level in the oil return tank cavity; an overflow pipe is arranged in the high-pressure oil pump, and an oil outlet end of the overflow pipe is arranged at the top of the oil return tank cavity.
5. A through-flow hydro-generator set bearing oil return tank structure for reducing oil mist formation as recited in claim 1 wherein: the oil return pipe comprises an oil return pipe orifice and an oil return pipe pipeline connected with the oil return pipe orifice, the oil return pipe orifice is arranged to be a connecting flange, the flange plate is arranged outside the oil return box cavity, the pipe orifice is extended into the oil return box cavity, and the oil return pipe orifice is fixedly connected with the oil return box cavity; one end of the oil return pipe is connected to the oil return pipe opening, and the other end of the oil return pipe is an oil outlet end; the oil return pipe is fixed inside the oil return box cavity through a fixing frame.
6. A through-flow hydro-generator set bearing oil return tank structure for reducing oil mist formation as recited in claim 1 wherein: the oil return pipe is an S-shaped pipe and comprises: the oil return device comprises a first oil return straight pipe, a first bent part, a second oil return straight pipe, a second bent part, a third oil return straight pipe, a third bent part and an oil return outlet.
7. A through-flow hydro-generator set bearing oil return tank structure for reducing oil mist formation as recited in claim 6 wherein: the connection sequence of the oil return pipe is as follows: the oil return device comprises a first oil return straight pipe, a first bent part, a second oil return straight pipe, a second bent part, a third oil return straight pipe, a third bent part and an oil return outlet; wherein, the radian of bending of first kink is 180, the radian of bending of second kink is 180, the radian of bending of third kink is 90.
8. A through-flow hydro-generator set bearing oil return tank structure for reducing oil mist formation as recited in claim 6 wherein: the oil return outlet and the third bending part form an included angle of 45 degrees in space.
9. A through-flow hydro-generator set bearing oil return tank structure for reducing oil mist formation as recited in claim 5 wherein: the fixing frame comprises a first fixing frame and a second fixing frame, the first fixing frame is fixed on the third oil return straight pipe, and the second fixing frame is fixed on the second oil return straight pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920627453.5U CN210164568U (en) | 2019-05-05 | 2019-05-05 | Through-flow type hydroelectric generating set bearing oil return box structure for reducing oil mist formation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920627453.5U CN210164568U (en) | 2019-05-05 | 2019-05-05 | Through-flow type hydroelectric generating set bearing oil return box structure for reducing oil mist formation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210164568U true CN210164568U (en) | 2020-03-20 |
Family
ID=69791722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920627453.5U Active CN210164568U (en) | 2019-05-05 | 2019-05-05 | Through-flow type hydroelectric generating set bearing oil return box structure for reducing oil mist formation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210164568U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030138A (en) * | 2019-05-05 | 2019-07-19 | 广水安江水电开发有限公司 | For reducing the bulb-type hydraulic generating set bearing oil return box structure of mist of oil formation |
-
2019
- 2019-05-05 CN CN201920627453.5U patent/CN210164568U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030138A (en) * | 2019-05-05 | 2019-07-19 | 广水安江水电开发有限公司 | For reducing the bulb-type hydraulic generating set bearing oil return box structure of mist of oil formation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203239626U (en) | AP1000 core main pump with long-short vane guiding vanes | |
| CN210164568U (en) | Through-flow type hydroelectric generating set bearing oil return box structure for reducing oil mist formation | |
| CN106918369B (en) | Device and method for measuring flow of pressure main pipe of hydropower station | |
| CN103470530B (en) | Three-stage convection type impeller of convection type water pump and working method thereof | |
| CN201747539U (en) | Cooling device of accelerating gear box of wind generating set | |
| CN207161270U (en) | A kind of blower fan oil leakage monitoring device | |
| Zhu et al. | Optimal hydraulic design of new-type shaft tubular pumping system | |
| CN113701989B (en) | Pumped storage model test device and method capable of simulating liquid column separation | |
| CN207004741U (en) | Wind generating set engine room humidity control system | |
| Gordon | Turbine selection for small low-head hydro developments | |
| CN210325227U (en) | Vertical mixed flow pump for primary loop of lead-bismuth reactor | |
| CN205225560U (en) | Waterwheel formula hydraulic generator's back upper place drainage formula waterwheel | |
| CN209892373U (en) | Device for preventing upper guide shoe from being overhigh in temperature for hydropower station | |
| CN107165789A (en) | Wind generating set engine room humidity control system | |
| CN207813910U (en) | A kind of water pump timing constant-current stabilizer | |
| CN208831167U (en) | A kind of high stability submersible screw pump | |
| CN215805215U (en) | Novel H type pump floodgate crouches device | |
| CN114017445B (en) | Thrust bearing cooling system and method for hydroelectric generating set | |
| CN207989381U (en) | A kind of vertical diagonal flow pump of included water lubrication protection | |
| CN220869562U (en) | Cooling system | |
| CN213086737U (en) | Steel dam pump device for city free flowing running water | |
| CN110030138A (en) | For reducing the bulb-type hydraulic generating set bearing oil return box structure of mist of oil formation | |
| CN220015385U (en) | Power generation device | |
| CN216429845U (en) | Oil changing system for gearbox of ultrahigh wind driven generator | |
| CN217002405U (en) | Resistance-reducing and pressure-increasing type pipeline speeder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |