CN219431958U - Hydraulic unit guide bearing lubricating oil system with arc oil baffle - Google Patents
Hydraulic unit guide bearing lubricating oil system with arc oil baffle Download PDFInfo
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- CN219431958U CN219431958U CN202222075940.XU CN202222075940U CN219431958U CN 219431958 U CN219431958 U CN 219431958U CN 202222075940 U CN202222075940 U CN 202222075940U CN 219431958 U CN219431958 U CN 219431958U
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- guide shoe
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- 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
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Abstract
The utility model relates to a hydraulic unit guide bearing lubricating oil system with an arc oil baffle, which comprises a main shaft, a barrel-type water guide shoe sleeved on the main shaft, a bearing seat sleeved on the outer side of the barrel-type water guide shoe, a rotary oil basin arranged below the barrel-type water guide shoe, an oil feeding basin arranged above the barrel-type water guide shoe and the bearing seat, a pitot tube arranged inside the barrel-type water guide shoe and communicated with the rotary oil basin and the oil feeding basin, and an oil cooling system connected with the oil feeding basin and the pitot tube. The rotary oil basin and the oil feeding basin are provided with openings close to the main shaft, and a gap is formed between the cylinder type water guide shoe and the main shaft so as to form a main shaft oil film; an arc-shaped oil baffle plate is arranged below the top cover of the rotary oil basin. According to the utility model, the arc-shaped oil baffle plate under the top cover of the rotary oil basin effectively prevents lubricating oil from penetrating into the gap between the cylinder-type water guide shoe and the rotary oil basin so as to throw oil, and compared with the traditional structure, the oil-liquid rotary oil basin is beneficial to recycling, improves the sealing performance, reduces the occurrence of oil throwing phenomenon and reduces the harm to the working environment and equipment.
Description
Technical Field
The utility model belongs to the technical field of hydropower station units, and particularly relates to a guide bearing lubricating oil system of a hydropower station with an arc-shaped oil baffle plate
Background
The hydropower station consists of a hydraulic system, a mechanical system, an electric energy generating device and the like, and is used for converting water energy into electric energy
The sustainability of the production of electric energy in the hydro-junction engineering requires uninterrupted utilization of the water energy of the hydropower station. The hydraulic resource distribution in time and space is adjusted and changed artificially by building a hydropower station reservoir system, so that sustainable utilization of the hydraulic resource is realized. In order to effectively convert water energy in a reservoir into electric energy, a hydropower station needs to be realized by a hydro-electromechanical system, and the system mainly comprises a pressure water diversion pipe, a water turbine, a generator, a draft tube and the like.
In the actual production process, the phenomenon that oil slinging and oil leakage occur when the hydraulic turbine water guide bearing rotates the oil basin is often found, the oil quantity of the unit rotating oil basin is insufficient, lubricating oil is wasted, the working environment of the unit is polluted, potential safety hazards are caused, and the safe and stable operation of the unit can be threatened. The improved variable outer diameter rotary oil basin can effectively reduce oil leakage in the rotary process, and plays a role in reducing lubricating oil waste and guaranteeing safe and stable operation of the unit.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a hydraulic unit guide bearing lubricating oil system with an arc-shaped oil baffle.
The utility model provides a hydroelectric set guide bearing lubricating oil system with arc oil baffle, includes the main shaft, cup joints the epaxial cylinder water guide shoe of main, cup joints the bearing frame in the cylinder water guide shoe outside, installs the rotatory oil basin in cylinder water guide shoe below, installs the last oil basin in cylinder water guide shoe top, installs the oil cooling system in last oil basin outside, installs the pitot tube of the rotatory oil basin of inside intercommunication of cylinder water guide shoe and last oil basin, and it is equipped with the oil feed hole to go up the oil basin top cap, be connected with the oil return pipe through oil delivery pipe between oil feed hole of last oil basin top cap oil feed hole to go up the oil cooling system. An arc oil baffle is arranged below the top cover of the rotary oil basin, the outer diameter of the top cover of the rotary oil basin is 177cm, the thickness of the top cover is 39cm, the radial distance between the arc baffle and a cylindrical water guide shoe is 52cm, the thickness of the root part of the arc oil baffle is 35cm, the thickness of the end part of the arc oil baffle is 6cm, and the coordinates of 20 points of the outer side curve of the longitudinal section of the oil baffle in a rectangular coordinate system are shown in Table 1:
TABLE 1
The equation for the curve after fitting is:
F(x)＝-1.57×10 -5 x 4 -0.004x 3 -0.42x 2 -19.17x-334.9
wherein F (x) is defined as the negative value of the vertical distance from the point on the outer curve of the longitudinal section of the oil baffle plate to the intersection of the rotating oil pan roof and the water guide shoe, and x is defined as the negative value of the horizontal distance from the point on the curve to the intersection.
As a preferable scheme, a pitot tube outlet in the oil feeding basin is connected with a connecting pipe, the other end of the connecting pipe is connected with an oil conveying hole of the top cover of the oil feeding basin, and an oil return pipe is communicated with the oil feeding basin at the oil conveying hole.
As an optimal scheme, a gap exists between the cylinder type water guide shoe and the main shaft, and the oil feeding basin is communicated with the rotary oil basin through the gap.
Preferably, an oil-water mixing sensor is arranged at the lower part of the oil feeding basin.
As the preferable scheme, be equipped with the oil level check tube in last oil basin and the rotatory oil basin, the oil level check tube is installed in cylinder water guide shoe, and the upper end is in last oil basin, and the lower extreme is in rotatory oil basin.
As an optimal scheme, a rubber sealing strip is arranged between the cylinder water guide shoe and the bearing seat, and a sealing ring is arranged between the cylinder water guide shoe and the top cover of the rotary oil basin.
Preferably, the top cover of the oil feeding basin is provided with an inspection cover.
The beneficial effects are that: according to the hydraulic unit guide bearing lubricating oil system with the arc-shaped oil baffle, the rubber sealing strip is arranged between the cylinder type water guide shoe and the bearing seat, and the sealing ring is arranged between the cylinder type water guide shoe and the top cover of the rotary oil basin, so that the sealing performance between the rotary oil basin and the cylinder type water guide shoe can be improved, the operation stability and the safety are improved, the arc-shaped oil baffle can effectively prevent the occurrence of oil leakage phenomenon between the rotary oil basin and the cylinder type water guide shoe, the workload is reduced, the use amount of lubricating oil is saved, and the system runs more safely and stably.
Drawings
Fig. 1 and fig. 2 are schematic structural diagrams of a hydraulic unit guide bearing lubricating oil system with an arc-shaped oil baffle plate.
FIG. 3 is a schematic view of the direction of flow of lubricating oil on an arcuate oil deflector
FIG. 4 is a schematic view showing the direction of the lubricant flowing on the vertical oil baffle
In the figure: 1. a main shaft; 2. barrel type water guide shoe; 3. a bearing seat; 4. rotating the oil basin; 5. rotating the top cover of the oil basin; 6. an oil basin; 7. an oil cooling system; 8. a pitot tube; 9. an oil delivery hole; 10. an oil delivery pipe; 11. an oil return pipe; 12. an arc-shaped oil baffle plate; 13. a connecting pipe; 14. an oil-water mixing sensor; 15. an oil level check tube; 16. a rubber sealing strip; 17. a seal ring; 18. the cover is inspected.
Detailed Description
The following detailed description of specific embodiments of the utility model will be given with reference to the accompanying drawings
Referring to fig. 1 and 2, the hydraulic unit guide bearing lubricating oil system with the arc-shaped oil baffle provided by the utility model comprises a main shaft 1, a barrel-type water guide shoe 2 sleeved on the main shaft, a bearing seat 3 sleeved on the outer side of the barrel-type water guide shoe, a rotary oil basin 4 arranged below the barrel-type water guide shoe, an oil feeding basin 6 arranged above the barrel-type water guide shoe, an oil cooling system 7 arranged on the outer side of the oil feeding basin, a pitot tube 8 arranged in the barrel-type water guide shoe and communicated with the rotary oil basin and the oil feeding basin, an oil conveying hole 9 arranged on a top cover of the oil feeding basin, and an oil return pipe 11 connected between the oil cooling system and the oil conveying hole of the top cover of the oil feeding basin through an oil conveying pipe 10. An arc oil baffle 12 is arranged below the top cover of the rotary oil basin, the outer diameter of the top cover 5 of the rotary oil basin is 177cm, the thickness of the top cover is 39cm, the radial distance between the arc baffle and a cylindrical water guide shoe is 52cm, the thickness of the root of the arc oil baffle is 35cm, the thickness of the end is 6cm, and the coordinates of 20 points of the outer side curve of the longitudinal section of the oil baffle in a rectangular coordinate system are shown in Table 1:
TABLE 2
The equation for the curve after fitting is:
F(x)＝-1.57×10 -5 x 4 -0.004x 3 -0.42x 2 -19.17x-334.9
wherein F (x) is defined as the negative value of the vertical distance from the point on the outer curve of the longitudinal section of the oil baffle plate to the intersection of the rotating oil pan roof and the water guide shoe, and x is defined as the negative value of the horizontal distance from the point on the curve to the intersection.
As a further preferable scheme, the pitot tube outlet in the oil feeding basin is connected with a connecting pipe, the other end of the connecting pipe is connected with an oil conveying hole in the top cover of the oil feeding basin, and the oil return pipe is communicated with the oil feeding basin in the oil conveying hole. A gap exists between the cylinder type water guide shoe and the main shaft, and the oil feeding basin is communicated with the rotary oil basin through the gap. The lower part of the oil feeding basin is provided with an oil-water mixing sensor. The oil level inspection pipes are arranged in the upper oil basin and the rotary oil basin, and are arranged in the cylinder water guide tiles, the upper ends of the oil level inspection pipes are arranged in the upper oil basin, and the lower ends of the oil level inspection pipes are arranged in the rotary oil basin. A rubber sealing strip is arranged between the cylinder type water guide shoe and the bearing seat, and a sealing ring is arranged between the cylinder type water guide shoe and the top cover of the rotary oil basin. The top cover of the oil feeding basin is provided with an inspection cover.
The implementation process of the utility model is as follows:
lubricating oil enters a gap between the cylinder water guide shoe 2 and the main shaft 1 through an opening between the oil feeding basin 6 and the cylinder water guide shoe 2 to play a role of lubricating the main shaft 1, then the lubricating oil flows into the rotary oil basin 4 through the gap, after the unit is started, the lubricating oil is transported upwards to the oil feeding basin 6 through the pitot tube 8 under the action of centrifugal force, enters the oil cooling system 7 through the connecting tube 13 and the oil conveying tube 10, is cooled in the oil cooling system 7, and directly enters the interior of the oil feeding basin 6 through the oil conveying hole 9 of the top cover of the oil feeding basin 6 through the oil return tube 11 to form a complete oil circulation system. The oil-water mixing detector 14 at the bottom of the oil-feeding basin can detect whether the lubricating oil in the oil-feeding basin 6 is mixed with water, the oil level detection tube 15 is used for monitoring the oil level in the oil-feeding basin 6, and the detection cover of the top cover of the oil-feeding basin 6 can observe the internal condition of the oil-feeding basin 6.
The arc oil baffle in the rotatory oil pan 4 can stop lubricating oil spill to rotatory oil pan 4 top cap and barrel water guide shoe 2 contact position when rotatory to reduce the quantity that lubricating oil lets out from rotatory oil pan 4 top cap and barrel water guide shoe 2 contact position, cooperation rubber seal strip 16 simultaneously can greatly improve rotatory oil pan's sealing performance, reduces the oil leakage, reinforcing unit operating stability and security.
Descriptions not related to the specific embodiments of the present utility model are well known in the art, and can be implemented with reference to the well known art.
Claims (7)
1. A hydro-power unit guide bearing lubricating oil system with arc oil baffle, characterized by comprising: the device comprises a main shaft, a barrel-type water guide shoe sleeved on the main shaft, a bearing seat sleeved on the outer side of the barrel-type water guide shoe, a rotary oil basin installed below the barrel-type water guide shoe, a rotary oil basin top cover installed on the top of the rotary oil basin, an oil feeding basin installed above the barrel-type water guide shoe, an oil cooling system installed on the outer side of the oil feeding basin, a pitot tube installed inside the barrel-type water guide shoe and communicated with the rotary oil basin and the oil feeding basin, and an oil conveying hole arranged on the oil feeding basin top cover; the oil cooling system is connected with the oil return pipe through an oil delivery pipe between the oil delivery hole of the top cover of the oil feeding basin; an arc oil baffle is arranged below the top cover of the rotary oil basin, the outer diameter of the top cover of the rotary oil basin is 177cm, the thickness of the top cover is 39cm, the radial distance between the arc baffle and a cylindrical water guide shoe is 52cm, the thickness of the root part of the arc oil baffle is 35cm, the thickness of the end part of the arc oil baffle is 6cm, and the equation of the outer side curve of the longitudinal section of the oil baffle is:
F(x)＝-1.57×10 -5 x 4 -0.004x 3 -0.42x 2 -19.17x-334.9
wherein F (x) is defined as the negative value of the vertical distance from the point on the outer curve of the longitudinal section of the oil baffle plate to the intersection of the rotating oil pan roof and the water guide shoe, and x is defined as the negative value of the horizontal distance from the point on the curve to the intersection.
2. The hydraulic unit guide bearing lubricating oil system with the arc-shaped oil baffle plate according to claim 1, wherein a pitot tube outlet in the oil feeding basin is connected with a connecting pipe, the other end of the connecting pipe is connected with an oil conveying pipe at an oil conveying hole of a top cover of the oil feeding basin, and an oil return pipe is communicated with the oil feeding basin at the oil conveying hole.
3. The lubricating oil system for the guide bearing of the hydroelectric generating set with the arc-shaped oil baffle plate is characterized in that a gap exists between the cylindrical water guide shoe and the main shaft, and the oil feeding basin is communicated with the rotary oil basin through the gap.
4. The hydraulic unit guide bearing lubricating oil system with the arc-shaped oil baffle plate, which is disclosed in claim 1, is characterized in that an oil-water mixing sensor is arranged at the lower part of the oil feeding basin.
5. The hydraulic unit guide bearing lubricating oil system with the arc-shaped oil baffle plate according to claim 1, wherein oil level check pipes are arranged in the upper oil basin and the rotary oil basin, and are arranged in the barrel-type water guide shoe, the upper end of the oil level check pipe is arranged in the upper oil basin, and the lower end of the oil level check pipe is arranged in the rotary oil basin.
6. The hydraulic unit guide bearing lubricating oil system with the arc-shaped oil baffle plate according to claim 1, wherein a rubber sealing strip is arranged between the cylinder type water guide shoe and the bearing seat, and a sealing ring is arranged between the cylinder type water guide shoe and the top cover of the rotary oil basin.
7. The hydraulic unit guide bearing lubricating oil system with the arc-shaped oil baffle plate according to claim 1, wherein the upper oil basin top cover is provided with an inspection cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222075940.XU CN219431958U (en) | 2022-08-08 | 2022-08-08 | Hydraulic unit guide bearing lubricating oil system with arc oil baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222075940.XU CN219431958U (en) | 2022-08-08 | 2022-08-08 | Hydraulic unit guide bearing lubricating oil system with arc oil baffle |
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| Publication Number | Publication Date |
|---|---|
| CN219431958U true CN219431958U (en) | 2023-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222075940.XU Active CN219431958U (en) | 2022-08-08 | 2022-08-08 | Hydraulic unit guide bearing lubricating oil system with arc oil baffle |
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| Country | Link |
|---|---|
| CN (1) | CN219431958U (en) |
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2022
- 2022-08-08 CN CN202222075940.XU patent/CN219431958U/en active Active
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