CN214660589U - Bearing self-cooling hydraulic turbine - Google Patents
Bearing self-cooling hydraulic turbine Download PDFInfo
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- CN214660589U CN214660589U CN202120919777.3U CN202120919777U CN214660589U CN 214660589 U CN214660589 U CN 214660589U CN 202120919777 U CN202120919777 U CN 202120919777U CN 214660589 U CN214660589 U CN 214660589U
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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 self-cooling water turbine of a bearing, which comprises a water turbine body, a circulating oil pipeline, a circulating oil pump and a cooler, wherein the water turbine body is provided with a water outlet which is used for discharging tail water outside; both ends of the circulating oil pipeline are communicated with the water turbine body; the circulating oil pump is arranged on the circulating oil pipeline; the cooler is connected with the circulating oil pipeline and is provided with a cooling medium inlet which is communicated with the water outlet. The utility model discloses a circulating oil pump provides power for the fluid in the circulating oil pipeline, makes it at hydraulic turbine body mesocycle, plays lubricated effect. Tail water discharged by the water turbine body is skillfully used as a cooling medium of the cooler to cool oil in the circulating pipeline, so that the temperature of the whole machine is not too high during operation, the damage probability is reduced, and the service life is prolonged. Most importantly, the cooling medium is drained by itself, waste water is utilized, extra energy consumption equipment is not needed, and the method has good practicability.
Description
Technical Field
The utility model relates to a hydraulic turbine technical field especially relates to a bearing self-cooling hydraulic turbine.
Background
A water turbine is a machine that converts the energy of natural water flow into mechanical energy. Most of modern water turbines are installed in hydropower stations, and water in an upstream reservoir is guided to the water turbine through a water conduit to push wheel blades of the water turbine to rotate so as to drive a generator to generate electricity. The water which has done work in the water turbine is directly discharged as tail water.
In a horizontal turbine, the rotational axis of the vanes, i.e. the rotational axis of the main shaft connected thereto, is parallel to the horizontal plane. The outer portion of the main shaft is sleeved with a plurality of bearing bushes in a surrounding mode and bears the radial force and the axial force of the main shaft together, and a gap between each bearing bush and the corresponding main shaft can be filled with circulating oil to serve as lubricating oil for the operation of the main shaft.
However, the circulating oil is mainly supplied by an external circulating oil pump, and the internal parts of the external circulating oil pump, such as gears, will gradually increase in temperature during operation, and then the operating temperature of the bearing bush will increase, so that the temperatures of the main shaft part and the bearing bush part are relatively high during operation of the machine, which will cause adverse effects on the operation of the machine.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need for a self-cooling bearing hydraulic turbine, which solves the problem of high temperature during operation of the conventional hydraulic turbine.
The utility model provides a bearing self-cooling hydraulic turbine, include:
the water turbine comprises a water turbine body, wherein the water turbine body is provided with a water outlet for discharging tail water;
the two ends of the circulating oil pipeline are communicated with the water turbine body;
the circulating oil pump is arranged on the circulating oil pipeline;
and the cooler is arranged on the circulating oil pipeline and is provided with a cooling medium inlet which is communicated with the water outlet.
Optionally, a cooler is installed between the circulating oil pump and the drain port.
Optionally, the cooling system further comprises a main drainage pipe, one end of the main drainage pipe is communicated with the drainage port, and the cooling medium inlet is communicated with the middle of the main drainage pipe.
Optionally, the water turbine body comprises a top cover, a vane, a main shaft and a bearing seat, wherein a water outlet is formed on the top cover; the vanes are rotatably arranged in the top cover; one end of the main shaft is fixedly connected with the wheel blade, and the other end of the main shaft extends out of the top cover; the bearing seat is positioned on the outer side of the top cover, the bearing seat wraps part of the main shaft, and the circulating oil pipeline is communicated with the bearing seat.
Optionally, the blade separates the inner space of top cap into intake antrum and the chamber that leaks, and the intake antrum is located the one side that the blade deviates from the main shaft, and the outlet includes first drain opening and second drain opening, and wherein first drain opening communicates the intake antrum, and the second drain opening communicates the chamber that leaks.
Optionally, the second water outlet is provided with a plurality of second water outlets, and the plurality of second water outlets are communicated with the main water outlet pipe.
Optionally, the turbine body further includes a volute, the volute is communicated with the water inlet cavity, and the annular axis of the volute is coincident with the axis of the main shaft.
Optionally, the hydraulic turbine body still includes a plurality of stator, and a plurality of stator are all installed inside the top cap, and a plurality of stator are installed in the intercommunication department of spiral case and intake antrum.
Optionally, the oil separator further comprises a plurality of circulating oil pipes, one end of each circulating oil pipe is communicated with the bearing seat, and the other end of each circulating oil pipe is communicated with the circulating oil pipe.
Optionally, the water turbine body further comprises a flywheel, a bearing seat extends out of the other end of the main shaft, and the flywheel is fixedly connected to the other end of the main shaft.
The utility model provides a pair of bearing self-cooling hydraulic turbine provides power for the fluid in the circulating oil pipeline through the circulating oil pump, makes it at hydraulic turbine body mesocycle, plays lubricated effect. Tail water discharged by the water turbine body is skillfully used as a cooling medium of the cooler to cool oil in the circulating pipeline, so that the temperature of the whole machine is not too high during operation, the damage probability is reduced, and the service life is prolonged. Most importantly, the cooling medium is drained by itself, waste water is utilized, extra energy consumption equipment is not needed, and the method has good practicability.
Drawings
Fig. 1-2 are schematic structural diagrams of an embodiment of the bearing self-cooling water turbine provided by the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.
Combine fig. 1 ~ 2 to show, the utility model provides a one of them embodiment of bearing self-cooling hydraulic turbine, this bearing self-cooling hydraulic turbine includes hydraulic turbine body 1, circulating oil pipeline 2, circulating oil pump 3 and cooler 4. The water turbine body 1 is provided with a water discharge port for discharging tail water to be discharged after the rotation of the blade 12 is completed. The circulating oil pipeline 2 is used for supplying lubricating liquid required by the operation of the water turbine body 1, two ends of the circulating oil pipeline are communicated with the water turbine body 1, one end of the circulating oil pipeline is used for supplying oil to the water turbine body 1, and the other end of the circulating oil pipeline is used for recovering oil. The circulating oil pump 3 is installed on the circulating oil pipeline 2, namely used for driving the oil circulated in the pipeline. The cooler 4 is attached to the circulating oil pipe 2, the cooler 4 has a cooling medium inlet, and the cooling medium inlet of the cooler 4 communicates with the drain port.
The embodiment of the utility model provides a provide power for the fluid in circulating oil pipeline 2 through circulating oil pump 3, make it at 1 mesocycle of hydraulic turbine body, play lubricated effect. Tail water discharged by the water turbine body 1 is skillfully used as a cooling medium of the cooler 4 to cool oil in the circulating pipeline.
As a preferred embodiment, the surface of the circulating oil pipeline 2 in the embodiment is coated with striking red, so that the circulating oil pipeline is convenient to identify during maintenance, and meanwhile, field workers are reminded not to touch the circulating oil pipeline randomly when the water turbine runs, so as to prevent scalding.
As a preferred embodiment, the cooler 4 in the present embodiment is installed between the circulating oil pump 3 and the drain port. Make cooler 4 be located the fuel feeding one end of circulating fluid like this, make cooler 4 can eliminate the temperature that fluid improves after hydraulic turbine body 1 and circulating oil pump 3, will be about to get into hydraulic turbine body 1's fluid temperature control at lower level to reach the best cooling effect.
As a preferred embodiment, the type of the cooler 4 in the embodiment is OR-350, the flow rate is 350L/min, the heat exchange amount is 2.0m2, the interior of the cooler adopts a multi-tube bare tube design, the contact area is wide, and the cooling area is large. And 99.9% pure copper with good thermal conductivity is adopted as a heat transfer pipe, so that the heat transfer efficiency is high. Meanwhile, the cooler 4 plate pipe and the body are integrally designed, so that the trouble of mixing water and oil can be avoided, and the air tightness test is really tight before delivery, so that the leakage-proof purpose can be achieved. In addition, the foot stool of the cooler 4 in the embodiment can rotate freely for 360 degrees, so that the body of the cooler 4 can be assembled at random by changing the direction and the angle, and can be directly welded at any position of the mother machine or the oil groove through the foot stool, and the use is convenient and simple.
The cooler 4 cuts off the circulating oil pipeline 2, namely oil in the circulating oil pipeline 2 flows into the cooler 4 firstly, and flows out to the next section of circulating oil pipeline 2 after being cooled. The cooler 4 also has a cooling medium outlet through which the tail water used as the cooling medium in this embodiment is discharged after use, and at this time, it may be discharged directly into a river or collected for other use. It is understood that the cooler 4 may be of any type or kind according to actual conditions in practical use, and is not limited to this embodiment. For example, the cooler 4 is in a casing shape, and it covers a part of the circulating oil pipe 2, and tail water flows into the inner space of the casing through the cooling medium inlet and is located outside the circulating oil pipe 2 to be cooled.
The utility model also provides a preferred embodiment, this bearing self-cooling hydraulic turbine still includes drain main 5, drain main 5's one end intercommunication outlet, the middle part of coolant entry intercommunication drain main 5. Since the flow rate of the water turbine is generally large, only a part of the discharged tail water is used as a cooling medium by the above-described design in the present embodiment, and the surplus tail water is discharged to a river or the like through the other end of the drainage main 5. This prevents the cooler 4 from receiving an excessive amount of cooling water and being damaged.
As a preferred embodiment, the turbine body 1 in the present embodiment further includes a head 11, vanes 12, a main shaft 13, and a bearing housing 14. Wherein, a water outlet is formed on the top cover 11; the vanes 12 are rotatably mounted in the top cover 11, one end of the main shaft 13 is fixedly connected with the vanes 12, and the other end of the main shaft 13 extends out of the top cover 11. The bearing seat 14 is positioned on the outer side of the top cover 11, the bearing seat 14 wraps part of the main shaft 13, and the circulating oil pipeline 2 is communicated with the bearing seat 14.
The water turbine body 1 in this embodiment is horizontal, the main shaft 13 is parallel to the horizontal plane, and the bearing block 14 has various bearing bushes therein for supporting the main shaft 13. The circulating oil is filled in the gaps between the bearing bushes and the main shaft 13 to lubricate the main shaft 13 during rotation. In use, water from the river enters the roof 11 and drives the vanes 12 to rotate, which rotation is transmitted to an electrical generator or the like connected thereto via the main shaft 13. It is understood that the structure of the water turbine body 1 in the present embodiment is only an example of a preferable embodiment, and the specific structure and kind of the water turbine are not limited in practical application.
As a preferred embodiment, the vane 12 in this embodiment divides the inner space of the top cover 11 into an inlet cavity and a water leakage cavity, the inlet cavity is located on the side of the vane 12 facing away from the main shaft 13, and the water discharge ports include a first water discharge port 15 and a second water discharge port 16, wherein the first water discharge port 15 is communicated with the inlet cavity, and the second water discharge port 16 is communicated with the water leakage cavity. Most of the tail water of the driving vane 12 is discharged from the first water discharge port 15, but a small amount of water leaks from the gap between the vane 12 and other parts, and the leaked tail water may advance along the main shaft 13 to damage the connected electric devices, or may reduce the sealing strength of the sealing device of the main shaft 13, and may increase the pressure in the top cover 11, so that it is required to be discharged through the second water discharge port 16 in time.
The utility model discloses still provide an preferred embodiment, second outlet 16 in this bearing self-cooling hydraulic turbine has a plurality ofly, and a plurality of second outlets 16 all communicate the main drain pipe 5 through drainage pipe. The number of the second water discharge ports 16 in the present embodiment is two by way of example, and it is easily understood that the number of the second water discharge ports 16 in actual implementation can be automatically determined according to the size of the hydraulic turbine and the cooling requirement. It can be seen that in the present embodiment, the tail water discharged from the second water discharge opening 16 is used as the cooling medium, because the flow rate at the first water discharge opening 15 is too large, and the pipe connected to the first water discharge opening is hard and is not easy to be added. The reason is that the second water discharge port 16 is closer to the circulating oil pipe 2, which can reduce the length of the required pipe and is easier to implement.
The utility model also provides a preferred embodiment, this hydraulic turbine body 1 in the bearing self-cooling hydraulic turbine still includes spiral case 17, spiral case 17 intercommunication intake antrum, spiral case 17's the axis coincidence of surrounding axis and main shaft 13. The volute 17 is a kind of water guiding chamber, and the water in the river enters the turbine through the volute 17 to drive the vane 12 to rotate, and its appearance is very similar to that of a snail shell, so it is often called the volute 17. Which is generally to ensure uniform water supply to the turbine, the volute 17 is tapered in cross section and at the same time it forms the necessary amount of circulation in front of the distributor to relieve the distributor from operating stress.
The utility model also provides an optimal embodiment, this hydraulic turbine body 1 in the bearing self-cooling hydraulic turbine still includes a plurality of stator 18, and a plurality of stator 18 are all installed inside top cap 11, and a plurality of stator 18 are installed in the intercommunication department of spiral case 17 and intake antrum. The water intake at the vanes 12 can be controlled by controlling the opening of the vanes 18. In the present embodiment, each guide vane 18 is driven by a motor, the motor is mounted outside the top cover 11 and located on one side of the top cover 11 facing the bearing seat 14, and a plurality of volutes 17 are arranged around the main shaft 13.
The utility model also provides a preferred embodiment, this bearing self-cooling hydraulic turbine still include a plurality of circulating oil pipe 6, circulating oil pipe 6's one end intercommunication bearing frame 14, circulating oil pipe 6's the other end intercommunication circulating oil pipe. The bearing bush in this embodiment includes a thrust bush and a water guide bush, and therefore the number of the circulating oil pipe 6 in this embodiment is two, and the two circulating oil pipes are used for supplying oil to the thrust bush and the water guide bush, respectively. It will be appreciated that the number of oil circulation pipes 6 can be adjusted at will to suit the actual need for lubricated bearing shells.
The utility model also provides a preferred embodiment, this hydraulic turbine body 1 in the bearing self-cooling hydraulic turbine still includes flywheel 7, and the bearing frame 14 is extended to the other end of main shaft 13, and flywheel 7 fixed connection is in the other end of main shaft 13. The flywheel 7 can increase the rotational inertia of the main shaft 13 and also can play a role similar to a brake disc, so that the stop of the water turbine is conveniently controlled.
Before the bearing self-cooling water turbine provided by the embodiment is used, the running average temperatures of the thrust pad and the water guide pad in the water turbine are respectively 49.7 degrees and 51.8 degrees. And through the test, after having used the bearing self-cooling hydraulic turbine of this embodiment, the average temperature of operation of the thrust tile in the hydraulic turbine and water guide tile is equallyd divide and is respectively will 41.8 degrees and 41.1 degrees, can know according to data the utility model discloses an embodiment is effective practically.
The utility model provides a pair of bearing self-cooling hydraulic turbine provides power for the fluid in circulating oil pipeline 2 through circulating oil pump 3, makes it at hydraulic turbine body 1 mesocycle, plays lubricated effect. Tail water discharged by the water turbine body 1 is skillfully used as a cooling medium of the cooler 4 to cool oil in the circulating pipeline, so that the temperature of the whole machine is not too high during operation, the damage probability is reduced, and the service life is prolonged. Most importantly, the cooling medium is drained by itself, waste water is utilized, extra energy consumption equipment is not needed, and the method has good practicability.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (10)
1. A self-cooling water turbine for bearings, comprising:
a water turbine body having a drain opening;
the two ends of the circulating oil pipeline are communicated with the water turbine body;
the circulating oil pump is arranged on the circulating oil pipeline;
and the cooler is arranged on the circulating oil pipeline and is provided with a cooling medium inlet which is communicated with the water outlet.
2. A bearing self-cooling hydraulic turbine as claimed in claim 1, wherein said cooler is installed between said circulating oil pump and said drain port.
3. The self-cooling water turbine for bearings according to claim 1, further comprising a drain header pipe, one end of which communicates with the drain port, and the cooling medium inlet port communicates with a middle portion of the drain header pipe.
4. A self-cooling water turbine for bearings according to claim 3, wherein said water turbine body includes a head cover, vanes, a main shaft and a bearing seat, wherein said head cover has a water discharge port formed thereon; the vanes are rotatably mounted in the top cover; one end of the main shaft is fixedly connected with the wheel blade, and the other end of the main shaft extends out of the top cover; the bearing seat is located on the outer side of the top cover, the bearing seat wraps part of the main shaft, and the circulating oil pipeline is communicated with the bearing seat.
5. A self-cooling water turbine for bearings according to claim 4, wherein said vanes divide the inner space of said top cover into an inlet chamber and a leakage chamber, said inlet chamber being located on the side of said vanes facing away from said main shaft, said water discharge ports including a first water discharge port and a second water discharge port, wherein said first water discharge port communicates with said inlet chamber and said second water discharge port communicates with said leakage chamber.
6. A self-cooling water turbine for bearings according to claim 5, wherein said second water discharge port is provided in plural numbers, and each of said plural second water discharge ports is communicated with said water discharge header pipe.
7. A self-cooling water turbine as claimed in claim 5, wherein the turbine body further includes a volute communicating with the inlet chamber, the volute having an annular axis coincident with the axis of the main shaft.
8. The self-cooling bearing water turbine as claimed in claim 7, wherein the turbine body further comprises a plurality of guide vanes, each of the plurality of guide vanes being mounted inside the head, the plurality of guide vanes being mounted at a communication between the volute and the inlet chamber.
9. A self-cooling bearing water turbine according to any one of claims 4 to 8, further comprising a plurality of circulating oil pipe, wherein one end of the circulating oil pipe is communicated with the bearing seat, and the other end of the circulating oil pipe is communicated with the circulating oil pipe.
10. A self-cooling bearing water turbine as claimed in any one of claims 4 to 8, wherein the water turbine body further comprises a flywheel, the other end of the main shaft extends out of the bearing seat, and the flywheel is fixedly connected to the other end of the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120919777.3U CN214660589U (en) | 2021-04-29 | 2021-04-29 | Bearing self-cooling hydraulic turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120919777.3U CN214660589U (en) | 2021-04-29 | 2021-04-29 | Bearing self-cooling hydraulic turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214660589U true CN214660589U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120919777.3U Active CN214660589U (en) | 2021-04-29 | 2021-04-29 | Bearing self-cooling hydraulic turbine |
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| Country | Link |
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| CN (1) | CN214660589U (en) |
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2021
- 2021-04-29 CN CN202120919777.3U patent/CN214660589U/en active Active
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