CN114392603A - Main shaft seal control system of hydropower station - Google Patents
Main shaft seal control system of hydropower station Download PDFInfo
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- CN114392603A CN114392603A CN202111472320.3A CN202111472320A CN114392603A CN 114392603 A CN114392603 A CN 114392603A CN 202111472320 A CN202111472320 A CN 202111472320A CN 114392603 A CN114392603 A CN 114392603A
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- pipeline
- control system
- main shaft
- assembly
- electric valve
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 114
- 238000000746 purification Methods 0.000 claims abstract description 40
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 238000012216 screening Methods 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 15
- 230000008021 deposition Effects 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 10
- 230000037431 insertion Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 7
- 238000004062 sedimentation Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000010926 purge Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
- B01D36/045—Combination of filters with centrifugal separation devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/24—Preventing accumulation of dirt or other matter in the pipes, e.g. by traps, by strainers
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Centrifugal Separators (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a main shaft seal control system of a hydropower station, which comprises a purification module, a high-level water pool and a technical water supply pipeline which are respectively connected with the purification module, and a water filtering assembly connected with the purification module. The invention has the advantages that two paths of water sources are provided as water sources in the withering period, the pipeline booster pump is designed to be used for emergency when the flow pressure is low in a normal water supply mode and also to run for a long time, the guarantee is provided for preventing the bearing burning of the main shaft seal of the unit, the water quality is purified in the purification module, the equipment is prevented from being blocked, and the service life of the equipment is prolonged.
Description
Technical Field
The invention relates to the technical field of maintenance of hydropower stations, in particular to a main shaft seal control system of a hydropower station.
Background
At present, a main shaft sealing water supply system of a hydropower station is commonly in two water supply modes of clean water and technical water supply. The cleaning water is supplied by a high-level water tank, the technical water supply is supplied by a unit technical water supply pump, and two water sources supply water to the main shaft sealing pipeline through opening and closing of an electric valve.
The common main shaft seal water supply system simply adopts clean water for water supply in a rich water period, adopts unit technology for water supply in a dry water period, and switches the two modes through manual mode, so that the water supply mode is relatively single, if any water supply mode is low in pressure and interrupted in flow, the unit accident shutdown can be caused when the switching is not in time, and meanwhile, the water filter can be blocked by heavy coarse silt in the unit technology water supply, so that the service life of the water filter is shortened, the abrasion of the main shaft seal is serious, and the safe and stable operation of the unit is influenced.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made keeping in mind the above problems occurring in the prior art.
Therefore, the invention aims to provide a hydropower station main shaft seal control system which can provide two paths of water sources as water sources in a withering period, provide guarantee for preventing the main shaft seal of a unit from burning tiles, purify water quality and prolong the service life of equipment.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a power station main shaft seal control system, its includes that control system includes purification module, high-order pond and the technical water supply pipe who is connected with purification module respectively to and the drainage subassembly of being connected with purification module.
As a preferable aspect of the spindle seal control system of the hydroelectric power station of the present invention, wherein: a first electric valve is arranged between the high-level water tank and the purification module, and a second electric valve is arranged between the technical water supply pipeline and the purification module.
As a preferable aspect of the spindle seal control system of the hydroelectric power station of the present invention, wherein: a fourth electric valve, a fifth electric valve and a booster pump which is respectively connected with the fourth electric valve and the fifth electric valve are arranged between the high-level water tank and the technical water supply pipeline; and a third electric valve is arranged on the side surface of the purification module.
As a preferable aspect of the spindle seal control system of the hydroelectric power station of the present invention, wherein: the water filtering component comprises a sixth electric valve and a seventh electric valve which are respectively connected with the purifying module, a first water filter connected with the sixth electric valve, a first blow-down valve connected with the first water filter, a second water filter connected with the seventh electric valve and a second blow-down valve connected with the second water filter.
As a preferable aspect of the spindle seal control system of the hydroelectric power station of the present invention, wherein: still include the measuring subassembly, it includes electromagnetic flow meter and the pressure transmitter be connected with the drainage subassembly.
As a preferable aspect of the spindle seal control system of the hydroelectric power station of the present invention, wherein: the purification module comprises a pipeline assembly, separation assemblies arranged on two sides of the pipeline assembly, a purification assembly arranged in the pipeline assembly and with one end extending out of the pipeline assembly, and a support frame connected with the pipeline assembly.
As a preferable aspect of the spindle seal control system of the hydroelectric power station of the present invention, wherein: the pipeline assembly comprises a buffer pipeline, an impact pipeline communicated with the buffer pipeline, a first limiting ring arranged at the inlet end of the impact pipeline, a second limiting ring arranged at the inner side of the first limiting ring, a deposition cavity arranged between the first limiting ring and the second limiting ring, an impact cavity arranged at the tail ends of the second limiting ring and the impact pipeline, first screening openings symmetrically arranged at two sides of the deposition cavity, and second screening openings symmetrically arranged at two sides of the impact cavity; the first limiting ring and the second limiting ring have the same structure; the first limiting ring comprises a blocking surface arranged on one side of the first limiting ring, an arc-shaped folding surface communicated with the blocking surface, and an extending surface arranged on the other side of the first limiting ring.
As a preferable aspect of the spindle seal control system of the hydroelectric power station of the present invention, wherein: the separation assembly comprises two groups of communicating cavities which are symmetrically arranged at two sides of the pipeline assembly, and collecting pipes connected with the communicating cavities; the communicating cavity is communicated with the pipeline assembly through the first screening opening and the second screening opening.
As a preferable aspect of the spindle seal control system of the hydroelectric power station of the present invention, wherein: the purification assembly comprises a distance limiting frame arranged on one side of the pipeline assembly, a moving shaft movably connected with the distance limiting frame, a sealing block arranged on the moving shaft, a V-shaped elastic sheet arranged on one side of the sealing block, horizontal sheets respectively arranged at two ends of the V-shaped elastic sheet, two groups of splicing end heads symmetrically arranged on the horizontal sheets, a rotating sleeve arranged on the outer side of the moving shaft, a plurality of groups of splicing ports arranged in the middle of the rotating sleeve in a surrounding manner, a plurality of groups of impact power fan sheets obliquely arranged at one end of the rotating sleeve, a lantern ring arranged at the other end of the rotating sleeve, a small spiral flow deflector arranged in the rotating sleeve and connected with the moving shaft, a large spiral flow deflector communicated with the small spiral flow deflector and arranged on the outer side of the rotating sleeve, and a conical elastic screening sheet connected with the tail end of the moving shaft; the bottom end of the impact pipeline is provided with a lantern ring limiting block, and a limiting groove movably connected with the lantern ring is arranged in the lantern ring limiting block.
As a preferable aspect of the spindle seal control system of the hydroelectric power station of the present invention, wherein: the conical elastic screening sheet comprises a conical elastic sheet, a third screening opening arranged on the conical elastic sheet, a plurality of groups of impact extension grooves arranged in the middle of the conical elastic sheet in an array manner, and a plurality of groups of auxiliary shovel sheets arranged at the bottom end of the conical elastic sheet in an array manner; the auxiliary shovel sheet is provided with an inclined surface.
The invention has the beneficial effects that: the invention provides two water sources as water sources in the withering period, and the designed pipeline booster pump can be used for emergency when the flow pressure is low in a normal water supply mode and can also run for a long time, so that the protection for preventing the main shaft of the unit from being baked with tiles is provided, the water quality is purified in the purification module, the equipment is prevented from being blocked, and the service life of the equipment is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a structural diagram of an implementation of a main shaft seal control system of a hydropower station
Fig. 2 is a schematic diagram of a purification module of a main shaft seal control system of a hydropower station.
Fig. 3 is a partial structure omitted view of a purification module of the main shaft seal control system of the hydropower station.
Fig. 4 is an internal structural view of fig. 3.
Fig. 5 is a first confinement ring configuration diagram of a spindle seal control system of a hydroelectric power station.
FIG. 6 is a block diagram of a purge assembly of a spindle seal control system for a hydroelectric power plant.
Fig. 7 is a view of the internal structure of a purge assembly of a main shaft seal control system of a hydroelectric power station.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 7, a first embodiment of the present invention provides a main shaft seal control system for a hydropower station, which can provide two water sources as water sources in a withering period, provide guarantee for preventing tile burning of a main shaft seal of a unit, purify water, and prolong the service life of equipment.
Specifically, the control system M includes a purification module 100, a high-level water tank 200 and a technical water supply pipeline 300 respectively connected to the purification module 100, and a water filtering assembly 400 connected to the purification module 100.
Further, a first electric valve 201 is arranged between the high-level water tank 200 and the purification module 100, and a second electric valve 301 is arranged between the technical water supply pipeline 300 and the purification module 100.
Further, a fourth electric valve 501, a fifth electric valve 502 and a booster pump 503 connected with the fourth electric valve 501 and the fifth electric valve 502 respectively are arranged between the high-level water tank 200 and the technical water supply pipeline 300; the purification module 100 is provided with a third electric valve 504 at the side.
Further, the water filtering assembly 400 includes a sixth electric valve 401 and a seventh electric valve 402 respectively connected to the purification module 100, a first water filter 403 connected to the sixth electric valve 401, a first drain valve 404 connected to the first water filter 403, a second water filter 405 connected to the seventh electric valve 402, and a second drain valve 406 connected to the second water filter 405.
Further, a measuring assembly 600 is included, which comprises an electromagnetic flow meter 601 and a pressure transmitter 602 connected to the water filtering assembly 400.
The principle of the system is as follows: selecting the high-level water tank 200 to supply water in the rich water period, when a main shaft seal water supply system receives a throwing order, opening the first electric valve 201, opening the sixth electric valve 401, enabling water flow to reach a main shaft seal through the purification module 100, the first water filter 403, the electromagnetic flow meter 601 and the pressure sensor 602, delaying to open the booster pump 503 when any one of flow and pressure is smaller than a set value, and opening the booster pump in linkage with the electric valve 4 to ensure the water supply pressure and flow; when the differential pressure of the first water filter 403 is high, the electric valve 7 is opened, and the sixth electric valve 401 is closed. When the main shaft sealing water supply system receives the quit order, the electric valves on the water supply pipeline of the high-level water tank are all closed.
When a water supply system of the spindle seal receives a throwing order, the electric valve 2 is opened, the sixth electric valve 401 is opened, water flow reaches the spindle seal through the purification module 100, the first water filter 403, the electromagnetic flow meter 601 and the pressure sensor 602, when any one of flow and pressure is smaller than a set value, the booster pump 503 is opened in a delayed mode, and the booster pump 503 is linked with the fifth electric valve 502 to be opened to ensure water supply pressure and flow; when the differential pressure of the first water filter 403 is high, the seventh electric valve 402 is opened while the sixth electric valve 401 is closed. When the main shaft sealing water supply system receives the quit order, the electric valves on the technical water supply pipelines are all closed. The main shaft sealing water supply system adopts the prior art, such as PLC and the like.
Further, the purification module 100 comprises a pipeline assembly 101, separation assemblies 102 arranged on two sides of the pipeline assembly 101, a purification assembly 103 arranged in the pipeline assembly 101 and having one end extending out of the pipeline assembly 101, and a support frame 104 connected with the pipeline assembly 101.
Further, the pipe assembly 101 includes a buffer pipe 101a, an impact pipe 101b communicated with the buffer pipe 101a, a first limiting ring 101c disposed at an inlet end of the impact pipe 101b, a second limiting ring 101d disposed at an inner side of the first limiting ring 101c, a deposition chamber 101e disposed between the first limiting ring 101c and the second limiting ring 101d, an impact chamber 101f disposed at an end of the second limiting ring 101d and the impact pipe 101b, first screening openings 101g symmetrically disposed at two sides of the deposition chamber 101e, and second screening openings 101h symmetrically disposed at two sides of the impact chamber 101 f; the first restriction ring 101c and the second restriction ring 101d have the same structure.
Further, the first restriction ring 101c includes a blocking surface 101c-1 disposed at one side thereof, an arc-shaped folding surface 101c-2 communicated with the blocking surface 101c-1, and an extension surface 101c-3 disposed at the other side thereof.
Further, the separation assembly 102 includes two sets of communicating cavities 102a symmetrically disposed at two sides of the pipe assembly 101, and a collecting pipe 102b connected to the communicating cavities 102 a; the communicating chamber 102a communicates with the pipe assembly 101 through the first and second screening ports 101g and 101 h.
Further, the purification assembly 103 comprises a distance limiting frame 103a disposed on one side of the pipeline assembly 101, a moving shaft 103b movably connected with the distance limiting frame 103a, a sealing block 103c disposed on the moving shaft 103b, a V-shaped elastic sheet 103d disposed on one side of the sealing block 103c, horizontal sheets 103e disposed at two ends of the V-shaped elastic sheet 103d, two sets of insertion ends 103f symmetrically disposed on the horizontal sheets 103e, a rotating sleeve 103g disposed on the outer side of the moving shaft 103b, a plurality of sets of insertion ports 103h disposed around the middle portion of the rotating sleeve 103g, a plurality of sets of impact power fan blades 103i obliquely disposed at one end of the rotating sleeve 103g, a collar 103j disposed at the other end of the rotating sleeve 103g, a small spiral diversion blade 103k disposed in the rotating sleeve 103g and connected with the moving shaft 103b, A large spiral deflector 103l communicated with the small spiral deflector 103k and disposed outside the rotary sleeve 103g, and a conical elastic screening sheet 103m connected to the end of the moving shaft 103 b; the bottom end of the impact pipeline 101b is provided with a lantern ring limiting block 101b-1, and a limiting groove movably connected with the lantern ring 103j is arranged in the lantern ring limiting block 101 b-1. When the work efficiency needs to be improved, the power can be enhanced by connecting the motor with the moving shaft 103 b.
Preferably, the moving shaft 103b can rotate relative to the distance limiting frame 103a through a bearing, and the worker can perform the limiting and fixing function on the distance limiting frame 103a by adjusting the working state of the position adjusting device of the moving shaft 103b relative to the distance limiting frame 103 a. The sealing block 103c is arranged for sealing the pipeline assembly 101, the large spiral guide vane 103l improves stirring and flow guiding capacity, so that muddy water in the cleaning process enters the small spiral guide vane 103k through the large spiral guide vane 103l, the diameter of the small spiral guide vane 103k is smaller than that of the rotary sleeve 103g, and the muddy water is discharged through a water outlet at the bottom end of the impact pipeline 101b under the action of flow guiding due to the fact that the sealing block 103c leaves.
Further, the conical elastic screening sheet 103m comprises a conical elastic sheet 103m-1, a third screening opening 103m-2 arranged on the conical elastic sheet 103m-1, a plurality of groups of impact extension grooves 103m-3 arranged in the middle of the conical elastic sheet 103m-1 in an array manner, and a plurality of groups of auxiliary shoveling sheets 103m-4 arranged at the bottom end of the conical elastic sheet 103m-1 in an array manner.
Preferably, the impact extension groove 103m-3 is arranged to enable the conical elastic sheet 103m-1 to deform under the impact of water flow and extend towards the extension surface 101c-3 of the limiting ring, so that the bottom of the conical elastic sheet 103m-1 is attached to the extension surface 101c-3 more tightly, the stability of the device is improved, the auxiliary shovel sheet 103m-4 periodically scrapes dead contact corners of the impact pipeline 101b and the second limiting ring 101d, and silt accumulation is prevented. The contact area between the conical elastic piece 103m-1 and the extension surface 101c-3 can be increased through the auxiliary shovel piece 103m-4, so that the device is prevented from retracting under the impact of water flow, and the operation of the device is ensured.
Furthermore, the auxiliary shovel blade 103m-4 is provided with an inclined surface 103 m-41. The first sieve opening 101g, the second sieve opening 101h and the third sieve opening 103m-2 have the same aperture and are used for separating water and coarse silt.
It should be noted that the conical elastic pieces 103m-1 and the V-shaped elastic pieces 103d are made of elastic material, the rotating sleeve 103g rotates after being impacted by water flow through a plurality of sets of impact power fan pieces 103i arranged obliquely, and the impact power fan pieces 103i can adopt the prior art, such as spiral power fan pieces and the like. The horizontal pieces 103e at the two ends of the V-shaped elastic piece 103d are used for limiting the plugging direction of the plugging end 103f, so that the plugging end can be matched with the plugging port 103 h. In the initial state, the top of the plug-in end 103f is pressed against the inner wall of the rotating sleeve 103g and has a tendency to spring outward under the action of the V-shaped elastic piece 103 d.
Further, the conical elastic screening sheet 103m is disposed in the deposition chamber 101 e. The diameters of the insertion end 103f and the insertion port 103h are the same, and the top of the insertion end 103f is in contact with the cylinder wall of the rotating sleeve 103 g.
When in use, the method is divided into two processes: a cleaning process and a cleaning process.
And (3) a purification process: referring to fig. 4, the positions of the respective components of the purge assembly 103 at this time are defined as initial states. In the process, after water flow enters the impact pipeline 101b through the buffer pipeline 101a, the water flow is screened by the conical elastic screening sheets 103m, so that sediment accumulation in the impact cavity 101f is prevented, and the device is prevented from being damaged. The screened water flow enters the impact cavity 101f and rotates the rotating sleeve 103g through the impact power fan 103i to stir and centrifuge the water flow in the sedimentation cavity 101e, and the sediment coarse particles in the sedimentation cavity 101e move towards the pipe wall direction under the action of centrifugal force and are finally trapped in the sedimentation cavity 101e by the blocking surfaces 101c-1 of the first limiting ring 101c and the second limiting ring 101 d. The water flows entering the deposition chamber 101e and the impact chamber 101f enter the communicating chamber 102a through the first screening port 101g and the second screening port 101h respectively under the rotation action of the rotating sleeve 103g, and finally enter the collecting pipe 102b to be discharged.
Cleaning: the movable shaft 103b is pushed to enter the impact pipeline 101b, the sealing block 103c enters the impact pipeline 101b and then enables the impact pipeline 101b to be unsealed and open the water outlet, and in the process, the V-shaped elastic flat 103d, the horizontal piece 103e and the plug end 103f are matched with the plug port 103h, so that a worker can enable the device to reach an accurate position without detaching the impact pipeline 101 b. When the moving shaft 103b is pushed to move, the conical elastic screening sheet 103m at the end of the moving shaft 103b moves in the sedimentation cavity 101e, the auxiliary shoveling sheets 103m-4 on the conical elastic screening sheet 103m scrape dead corners which are attached to the pipe wall of the sedimentation cavity 101e and cannot be impacted by impact water flow, the cleaning capacity is improved, and silt is reserved in the sedimentation cavity 101e through gaps among the auxiliary shoveling sheets 103m-4 of each group. When the conical elastic screening sheet 103m is in contact with the first limiting ring 101c, a worker feels resistance and continues to push the conical elastic screening sheet 103m, the conical elastic screening sheet 103m is in contact with the arc-shaped folding surface 101c-2 to generate certain deformation and passes through the first limiting ring 101c, and the worker pulls back to enable the conical elastic screening sheet 103m to be in contact with the extension surface 101c-3 of the first limiting ring 101c, so that the positioning of the position is completed and the adjustment of the position is finished; the adjusted conical elastic screening sheet 103m enables the deposition cavity 101e and the impact cavity 101f to be communicated, cleaning is facilitated, and the contact part of the first limiting ring 101c and the impact pipeline 101b is cleaned through the auxiliary shovel sheet 103m-4 when the first limiting ring rotates along with the rotating sleeve 103 g. The adjusted V-shaped elastic piece 103d is located at the insertion opening 103h, even if the insertion tip 103f is not matched with the insertion opening 103h in the first time, when the rotating sleeve 103g rotates again due to water flow impact, the insertion tip 103f will pop up when coinciding with the insertion opening 103h, so that the moving shaft 103b is fixedly connected with the rotating sleeve 103g and rotates along with the rotating sleeve 103 g. The large spiral deflector 103l will rotate in the settling chamber 101e and transport the silt to the small spiral deflector 103k and into the rotating sleeve 103g, and finally out through the outlet.
In conclusion, the pipeline booster pump can be used in a main shaft seal water supply system of a hydropower station to provide two paths of water sources as water sources in a withered period, and the pipeline booster pump can be used for emergency when the flow pressure is low in a normal water supply mode and can also run for a long time, so that the protection of the main shaft seal of the unit against tile burning is guaranteed; the design purification module is used for separating substances such as heavier coarse particle silt in the sewage, prevents that the granule in the sealed aquatic of main shaft from causing wearing and tearing to main shaft and axle bush, also can improve quality of water simultaneously, prolongs the water purifier life-span, prevents that the sealed water pressure flow of main shaft that the water purifier blockked up and leads to is low.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A kind of hydropower station main shaft seals the control system, characterized by that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the control system (M) comprises a purification module (100), a high-level water tank (200) and a technical water supply pipeline (300) which are respectively connected with the purification module (100), and a water filtering assembly (400) connected with the purification module (100).
2. The hydroelectric power plant main shaft seal control system of claim 1, wherein: a first electric valve (201) is arranged between the high-level water tank (200) and the purification module (100), and a second electric valve (301) is arranged between the technical water supply pipeline (300) and the purification module (100).
3. The hydroelectric power plant main shaft seal control system of claim 2, wherein: a fourth electric valve (501), a fifth electric valve (502) and a booster pump (503) which is respectively connected with the fourth electric valve (501) and the fifth electric valve (502) are arranged between the high-level water tank (200) and the technical water supply pipeline (300); and a third electric valve (504) is arranged on the side surface of the purification module (100).
4. The hydroelectric power plant main shaft seal control system of claim 3, wherein: the water filtering assembly (400) comprises a sixth electric valve (401) and a seventh electric valve (402) which are respectively connected with the purification module (100), a first water filter (403) connected with the sixth electric valve (401), a first blow-down valve (404) connected with the first water filter (403), a second water filter (405) connected with the seventh electric valve (402), and a second blow-down valve (406) connected with the second water filter (405).
5. The hydroelectric power plant main shaft seal control system of claim 4, wherein: also included is a measurement assembly (600) comprising an electromagnetic flow meter (601) and a pressure transducer (602) coupled to the water filtration assembly (400).
6. The hydropower station main shaft seal control system according to any one of claims 1 to 5, wherein: the purification module (100) comprises a pipeline assembly (101), separation assemblies (102) arranged on two sides of the pipeline assembly (101), a purification assembly (103) arranged in the pipeline assembly (101) and with one end extending out of the pipeline assembly (101), and a support frame (104) connected with the pipeline assembly (101).
7. The hydroelectric power plant main shaft seal control system of claim 6, wherein: the pipeline assembly (101) comprises a buffer pipeline (101a), an impact pipeline (101b) communicated with the buffer pipeline (101a), a first limiting ring (101c) arranged at the inlet end of the impact pipeline (101b), a second limiting ring (101d) arranged at the inner side of the first limiting ring (101c), a deposition cavity (101e) arranged between the first limiting ring (101c) and the second limiting ring (101d), an impact cavity (101f) arranged at the tail ends of the second limiting ring (101d) and the impact pipeline (101b), first screening openings (101g) symmetrically arranged at two sides of the deposition cavity (101e), and second screening openings (101h) symmetrically arranged at two sides of the impact cavity (101 f); the first limiting ring (101c) and the second limiting ring (101d) are identical in structure; the first limiting ring (101c) comprises a blocking surface (101c-1) arranged on one side of the first limiting ring, an arc-shaped folding surface (101c-2) communicated with the blocking surface (101c-1), and an extending surface (101c-3) arranged on the other side of the first limiting ring.
8. The hydroelectric power plant main shaft seal control system of claim 7, wherein: the separation assembly (102) comprises two groups of communication cavities (102a) symmetrically arranged at two sides of the pipeline assembly (101) and collecting pipes (102b) connected with the communication cavities (102 a); the communicating chamber (102a) communicates with the duct assembly (101) through the first screening port (101g) and the second screening port (101 h).
9. The hydroelectric power plant main shaft seal control system of claim 8, wherein: the purification assembly (103) comprises a distance limiting frame (103a) arranged on one side of the pipeline assembly (101), a moving shaft (103b) movably connected with the distance limiting frame (103a), a sealing block (103c) arranged on the moving shaft (103b), a V-shaped elastic sheet (103d) arranged on one side of the sealing block (103c), horizontal sheets (103e) respectively arranged at two ends of the V-shaped elastic sheet (103d), two groups of plug-in end heads (103f) symmetrically arranged on the horizontal sheets (103e), a rotating sleeve (103g) arranged on the outer side of the moving shaft (103b), a plurality of groups of plug-in ports (103h) arranged in the middle of the rotating sleeve (103g), a plurality of groups of impact power fan sheets (103i) obliquely arranged at one end of the rotating sleeve (103g), and a sleeve ring (103j) arranged at the other end of the rotating sleeve (103g), A small spiral flow deflector (103k) arranged in the rotary sleeve (103g) and connected with the moving shaft (103b), a large spiral flow deflector (103l) communicated with the small spiral flow deflector (103k) and arranged outside the rotary sleeve (103g), and a conical elastic screening sheet (103m) connected with the tail end of the moving shaft (103 b); the bottom end of the impact pipeline (101b) is provided with a lantern ring limiting block (101b-1), and a limiting groove movably connected with the lantern ring (103j) is arranged in the lantern ring limiting block (101 b-1).
10. The hydroelectric power plant main shaft seal control system of claim 9, wherein: the conical elastic screening sheet (103m) comprises a conical elastic sheet (103m-1), a third screening opening (103m-2) arranged on the conical elastic sheet (103m-1), a plurality of groups of impact extension grooves (103m-3) arranged in the middle of the conical elastic sheet (103m-1) in an array manner, and a plurality of groups of auxiliary shoveling sheets (103m-4) arranged at the bottom end of the conical elastic sheet (103m-1) in an array manner; an inclined surface (103m-41) is arranged on the auxiliary shovel sheet (103 m-4).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111472320.3A CN114392603B (en) | 2021-12-06 | 2021-12-06 | Hydropower station spindle sealing control system |
| PCT/CN2022/087044 WO2023103246A1 (en) | 2021-12-06 | 2022-04-15 | Main shaft seal control system for hydroelectric plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111472320.3A CN114392603B (en) | 2021-12-06 | 2021-12-06 | Hydropower station spindle sealing control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114392603A true CN114392603A (en) | 2022-04-26 |
| CN114392603B CN114392603B (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111472320.3A Active CN114392603B (en) | 2021-12-06 | 2021-12-06 | Hydropower station spindle sealing control system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114392603B (en) |
| WO (1) | WO2023103246A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023103252A1 (en) * | 2021-12-06 | 2023-06-15 | 华能西藏雅鲁藏布江水电开发投资有限公司 | Purification apparatus for main shaft seal of hydroelectric power station |
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| WO2023103252A1 (en) * | 2021-12-06 | 2023-06-15 | 华能西藏雅鲁藏布江水电开发投资有限公司 | Purification apparatus for main shaft seal of hydroelectric power station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114392603B (en) | 2023-06-30 |
| WO2023103246A1 (en) | 2023-06-15 |
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