CN115560924A - Hydroelectric set top cap monitoring devices that leaks - Google Patents
Hydroelectric set top cap monitoring devices that leaks Download PDFInfo
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- CN115560924A CN115560924A CN202211241194.5A CN202211241194A CN115560924A CN 115560924 A CN115560924 A CN 115560924A CN 202211241194 A CN202211241194 A CN 202211241194A CN 115560924 A CN115560924 A CN 115560924A
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- top cover
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- monitoring device
- water leakage
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 239000007788 liquid Substances 0.000 claims abstract description 56
- 238000012544 monitoring process Methods 0.000 claims abstract description 26
- 238000004140 cleaning Methods 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 15
- 230000001050 lubricating effect Effects 0.000 claims description 11
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 3
- 239000000314 lubricant Substances 0.000 description 16
- 239000012535 impurity Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6407—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
- B01D29/6415—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes with a rotary movement with respect to the filtering element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention discloses a water leakage monitoring device for a top cover of a water turbine generator set, which comprises a bearing assembly, a water leakage monitoring device and a water leakage monitoring device, wherein the bearing assembly comprises a top cover, a side plate arranged on the top cover, a main shaft arranged at the central part of the top cover and a supporting part arranged on the side plate; the liquid level monitoring assembly comprises a first flange plate arranged above the top cover and a float switch arranged on the first flange plate; the protection assembly comprises an inner fixing sleeve arranged outside the float switch main body and an outer rotating sleeve arranged outside the inner fixing sleeve; through setting up the liquid level monitoring subassembly, can the real-time supervision top cap condition of leaking, through setting up protective assembly, can protect the liquid level monitoring subassembly, improve the sensitivity of liquid level monitoring subassembly for monitoring effect is good, and the monitoring precision is high.
Description
Technical Field
The invention relates to the technical field of water leakage monitoring of a top cover of a hydraulic generator, in particular to a water leakage monitoring device for the top cover of a hydraulic generator set.
Background
Hydroelectric set is at the operation in-process, and top cap department greasy dirt is heavier, and humidity is great, has higher requirement to hydraulic turbine top cap water level monitoring device's stability. Once the top cover leaks water and the water level rises, accidents such as water guide tile burning, electric loop faults and the like can be caused to influence the safe and stable operation of the unit. Therefore, a set of reliable and stable top cover water level monitoring system is needed to monitor the top cover water level, and once the top cover water level rising condition occurs, an alarm is given in time and an accident shutdown process is started, so that the safety of unit equipment is protected.
The currently used top cover water level monitoring system of the hydroelectric generating set consists of a liquid level transmitter and a float switch, wherein the liquid level transmitter (analog quantity) is used for monitoring the water level in real time, and the float switch (switching quantity) is used for outputting a top cover liquid level high alarm signal when the top cover water level is too high;
further, as disclosed in publication No. CN217214576U, entitled "float switch device for monitoring water level of water turbine head", the disclosure "includes: the float switch body, store the box, sheath and floater, the float switch body has the lead wire box and sets up the montant in lead wire box bottom and built-in magnetism perception switch, it sets up and is used for storing water-based lubricant bottom the lead wire box, the storage box runs through from top to bottom at the montant, it is equipped with out the liquid hole with montant contact department to store the box bottom, the sheath sets up and is storing the box bottom, the montant stretches into in the sheath, the floater is located out liquid hole below and slides and set up on the montant, the floater is contactless with the sheath inner wall, set up the storage box that is used for storing water-based lubricant in the floater top, it is equipped with out the liquid hole with the position of montant contact to store the box bottom, let water-based lubricant slowly adhere to on the montant outer wall, play the effect of lubricated montant, thereby make the floater slide more smoothly on the montant, however, there are following problems: the water-based lubricant needs to be discharged through the liquid outlet hole all the time, so that the use is wasted, and meanwhile, the discharged water-based lubricant is easy to mix with water, so that the lubricating effect is poor;
in view of the above problems, improvements are needed.
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 title of the 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 invention is provided in view of the problems that the field working environment is moist, oil stain is heavy, sundries are easy to adhere to the float switch and the liquid level transmitter, and false alarm or non-alarm is easy to cause in the existing water turbine generator set top cover water leakage monitoring device.
Therefore, the invention aims to provide a water leakage monitoring device for a top cover of a water turbine generator set.
In order to solve the technical problems, the invention provides the following technical scheme: a top cover water leakage monitoring device of a hydroelectric generating set comprises a bearing assembly, a water-collecting pipe and a water-collecting pipe, wherein the bearing assembly comprises a top cover, a side plate arranged on the top cover, a main shaft arranged at the central part of the top cover and a supporting part arranged on the side plate; the liquid level monitoring assembly comprises a first flange plate arranged above the top cover and a float switch arranged on the first flange plate; and the protection assembly comprises an inner fixing sleeve arranged outside the float switch main body and an outer rotating sleeve arranged outside the inner fixing sleeve.
As an optimal scheme of the water leakage monitoring device for the top cover of the water turbine generator set, the water leakage monitoring device comprises the following components: the supporting component comprises an annular plate arranged above the top cover and a support arranged at the bottom end of the annular plate and connected with the top end of the side plate.
As an optimal scheme of the water leakage monitoring device for the top cover of the water turbine generator set, the water turbine generator set comprises the following components: the float switch comprises a lead box arranged at the upper end of the first flange plate, a vertical rod arranged at the bottom of the lead box and internally provided with a magnetic induction switch, and two floating balls arranged on the vertical rod.
As an optimal scheme of the water leakage monitoring device for the top cover of the water turbine generator set, the water leakage monitoring device comprises the following components: the liquid level monitoring subassembly is still including being used for the lubricated lubricating structure to the montant, lubricating structure is including setting up box, the setting is in are stored to the annular of first ring flange lower extreme the piston cylinder of box lower surface both sides is stored to the annular, and sets up piston cylinder top and store the feed liquor pipe that the box is connected with the annular and set up the fluid-discharge tube of piston cylinder bottom, fluid-discharge tube one end extends to montant one side and contacts with the montant.
As an optimal scheme of the water leakage monitoring device for the top cover of the water turbine generator set, the water turbine generator set comprises the following components: the piston barrel comprises a barrel body, a piston rod and a piston piece, wherein the piston rod is arranged in the barrel body, one end of the piston rod extends to the outside of the piston barrel, the piston piece is arranged in the barrel body and is connected with one end of the piston rod, the piston piece is arranged in the barrel body, the piston piece is arranged outside the piston barrel and is connected with the other end of the piston rod, the piston piece is arranged outside the piston barrel and is connected with a first wedge block, and the position of the piston piece corresponds to the position of the liquid inlet pipe.
As an optimal scheme of the water leakage monitoring device for the top cover of the water turbine generator set, the water turbine generator set comprises the following components: the inner fixed sleeve comprises a first sleeve, a second flange plate arranged at the top end of the first sleeve and a filter screen plate arranged at the bottom end of the first sleeve; the outer rotating sleeve comprises a second sleeve, an upper chute arranged on the side wall of the second sleeve, a cleaning rod arranged at the bottom end of the second sleeve, and a cleaning brush arranged on the upper surface of the cleaning rod and in contact with the lower surface of the filter screen plate, and is further provided with a driving part for driving the second sleeve to rotate, wherein the driving part comprises a movable toothed ring arranged on the second sleeve and a speed reduction structure arranged on one side of the second sleeve.
As an optimal scheme of the water leakage monitoring device for the top cover of the water turbine generator set, the water leakage monitoring device comprises the following components: remove the ring gear and include the ring gear main part, set up ring gear main part upper surface go up the annular groove, set up and be in the lower annular groove of ring gear main part lower surface, set up on ring gear main part inner wall and with the slider that the spout matches, and set up go up the push rod of annular inslot, the push rod top extend to second ring flange top and be connected with the second wedge that first wedge matches.
As an optimal scheme of the water leakage monitoring device for the top cover of the water turbine generator set, the water leakage monitoring device comprises the following components: the speed reducing structure comprises a main gear arranged on the main shaft, a plurality of planetary gears arranged on the outer side of the main gear, and a plurality of outer toothed rings arranged on the outer sides of the planetary gears and intermittently meshed with the movable toothed rings.
As an optimal scheme of the water leakage monitoring device for the top cover of the water turbine generator set, the water turbine generator set comprises the following components: the bottom end of the second sleeve is provided with a floating upward moving part, and the floating upward moving part comprises a buoyancy plate sleeved on the second sleeve, a limiting groove arranged on one side of the buoyancy plate and a supporting rod arranged above the buoyancy plate.
As an optimal scheme of the water leakage monitoring device for the top cover of the water turbine generator set, the water turbine generator set comprises the following components: be equipped with on the curb plate and be used for the fixed location structure to liquid level monitoring subassembly and protective component, location structure is including setting up locating plate, setting on the curb plate on the locating plate and run through the positioning screw of first ring flange and second ring flange to and a plurality of set nut who is connected with positioning screw.
The invention has the beneficial effects that: according to the floating ball switch, the protection component is arranged, the filter screen plate is arranged at the bottom end of the inner fixed sleeve of the protection component, water contacting with the floating ball switch can be filtered, large-particle impurities are blocked, the influence of the impurities on the working stability of the floating ball switch is avoided, meanwhile, the filter screen plate can be self-cleaned, and the influence of the blockage of the filter screen plate on the working of the floating ball switch is avoided; the setting of lubricating structure can avoid the floater body to lead to the phenomenon of card pause because of attached to impurity on the montant, increases float switch's sensitivity.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor. Wherein:
fig. 1 is a schematic view of the overall structure of the water leakage monitoring device for the top cover of the water turbine generator set.
Fig. 2 is a schematic view of the overall structure of the liquid level monitoring assembly and the protection assembly of the water leakage monitoring device for the top cover of the water turbine generator set.
Fig. 3 is a schematic structural view of a protective assembly of the water leakage monitoring device for the top cover of the water turbine generator set.
Fig. 4 is a schematic structural view of a liquid level monitoring assembly of the water leakage monitoring device for the top cover of the water turbine generator set.
Fig. 5 is a schematic sectional structure view of a part of a liquid level monitoring assembly of the water leakage monitoring device for the top cover of the water turbine generator set.
Fig. 6 is an enlarged schematic view of a part a of the structure in fig. 5 of the water leakage monitoring device for the top cover of the water turbine generator set.
Fig. 7 is a schematic sectional structure view of a protection assembly of the water leakage monitoring device for the top cover of the water turbine generator set.
Fig. 8 is an enlarged schematic view of a part B of the water leakage monitoring device of the top cover of the water turbine generator set in fig. 7.
Fig. 9 is an enlarged schematic view of a part C of the structure of the water leakage monitoring device of the water turbine generator set top cover in fig. 7.
Fig. 10 is a schematic structural view of a movable gear ring of the water leakage monitoring device for the top cover of the water turbine generator set.
Fig. 11 is a schematic view of the installation of the liquid level switch of the water leakage monitoring device for the top cover of the water turbine generator set.
Fig. 12 is a schematic diagram of a top cover water level starting unit emergency shutdown circuit of the top cover water leakage monitoring device of the water turbine generator set.
Fig. 13 is a schematic diagram of a top cover water level starting alarm loop of the top cover water leakage monitoring device of the water turbine generator set.
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, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the present 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.
Furthermore, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Example 1
Referring to fig. 1, an overall structure schematic diagram of a water leakage monitoring device for a top cover of a water turbine generator set is provided, and as shown in fig. 1, fig. 2, fig. 4, fig. 5, fig. 6 and fig. 8, a water leakage monitoring device for a top cover 101 of a water turbine generator set comprises a bearing assembly 100, a side plate 102 arranged on the top cover 101, a main shaft 103 arranged at the central part of the top cover 101, and a support component 104 arranged on the side plate 102, wherein the side plate 102 is annularly arranged at the edge part of the upper end of the top cover 101, the main shaft 103 extends downwards to be connected with a runner on a water turbine generator, the main shaft 103 extends upwards to be connected with a generator rotor on the water turbine generator, and the support component 104; comprises a ring-shaped plate 104a arranged above the top cover 101 and a bracket 104b arranged at the bottom end of the ring-shaped plate 104a and connected with the top end of the side plate 102, wherein the main shaft 103 penetrates through the ring-shaped plate 104a.
Specifically, the liquid level monitoring assembly 200 includes a first flange plate 202 disposed above the top cover 101, and a float switch 201 disposed on the first flange plate 202, wherein a mounting hole is disposed on the first flange plate 202, the float switch 201 penetrates through the first flange plate 202, and a working end of the float switch 201 is located below the first flange plate 202.
Specifically, the protection assembly 300 comprises an inner fixing sleeve 301 arranged outside the float switch 201 and an outer rotating sleeve 302 arranged outside the inner fixing sleeve 301, wherein the working end of the float switch 201 is located inside the inner fixing sleeve 301 and is not in contact with the inner wall of the inner fixing sleeve 301, the inner fixing sleeve 301 is used for protecting the float switch 201, and the outer rotating sleeve 302 is installed outside the inner fixing sleeve 301 through a bearing sleeve.
Further, the float switch 201 includes a lead box 201a disposed on the upper end of the first flange plate 202, a vertical rod 201b disposed at the bottom of the lead box 201a and having a built-in magnetic inductive switch, and two floating balls 201c disposed on the vertical rod 201b, wherein the floating ball 201c has a built-in magnetic block, and the magnetic inductive switch disposed in the vertical rod 201b is electrically connected to the lead box 201 a.
Further, the liquid level monitoring assembly 200 further comprises a lubricating structure 203 for lubricating the vertical rod 201b, the lubricating structure 203 comprises an annular storage box 203a arranged at the lower end of the first flange 202, piston cylinders 203b arranged on two sides of the lower surface of the annular storage box 203a, a liquid inlet pipe 203d arranged at the top end of the piston cylinder 203b and connected with the annular storage box 203a, and a liquid outlet pipe 203c arranged at the bottom end of the piston cylinder 203b, wherein one end of the liquid outlet pipe 203c extends to one side of the vertical rod 201b and is in contact with the vertical rod 201 b; wherein, annular storage box 203a upper end is equipped with the filling opening, and the filling opening extends to be located first ring flange 202 upper end, and montant 201b runs through annular storage box 203 a's middle part, and the inside waterborne lubricant that is deposited of annular storage box 203a, and feed liquor pipe 203d both ends are respectively with piston cylinder 203b and the inside intercommunication of annular storage box 203a, and fluid-discharge tube 203c is the slope setting, and fluid-discharge tube 203c one end and piston cylinder 203b internal connection department are equipped with the check valve.
Further, the piston cylinder 203b comprises a cylinder 203b-1, a piston rod 203b-2 disposed inside the cylinder 203b-1 and having one end extending to the outside of the piston cylinder 203b, a piston member 203b-4 disposed inside the cylinder 203b-1 and connected to one end of the piston rod 203b-2, a first wedge block 203b-5 disposed outside the piston cylinder 203b and connected to the other end of the piston rod 203b-2, and a return spring 203b-3 disposed outside the piston cylinder 203b and connected to the first wedge block 203b-5, the piston member 203b-4 being located at the bottom end of the annular storage box 203a, the piston member 203b-4 being located at the port of the liquid inlet 203d and controlling the communication and closing of the liquid inlet 203d, one end of the piston rod 203b-2 being connected to the piston member 203b-4, the other end of the piston rod 203b-2 being connected to the first wedge block 203b-5, the return spring 203b-3 being sleeved on the piston rod 203b-2 and connected to the return spring 203b-5 and the first wedge block 203 b-5.
The operation process comprises the following steps: when the liquid level at the upper end of the cover plate rises, the rising water enters the inner fixing sleeve 301, the working end of the floating ball switch 201 in the inner fixing sleeve 301 receives a liquid level rising signal to work, the floating ball body 201c moves upwards, and when the liquid level reaches an early warning position, the warning work is carried out; meanwhile, when the liquid level rises, the first wedge block 203b-5 can be extruded by the electric push rod 302e-15 or the air cylinder, so that the piston rod 203b-2 is extruded, the return spring 203b-3 is compressed, the piston rod 203b-2 pushes the piston piece 203b-4 to move, at the moment, when the piston piece 203b-4 receives the pushing force to move, the port of the liquid inlet pipe 203d is opened, and at the moment, the water-based lubricant in the annular storage box 203a enters the cylinder 203b-1 through the liquid inlet pipe 203 d; when the liquid level drops, the extrusion of the first wedge-shaped block 203b-5 is stopped, the return spring 203b-3 pushes the piston rod 203b-2 and the first wedge-shaped block 203b-5 to return, meanwhile, the piston rod 203b-2 pulls the piston piece 203b-4 to return, at this time, the piston piece 203b-4 seals the port of the liquid inlet pipe 203d, meanwhile, when the piston piece 203b-4 returns, a certain extrusion force is generated on the aqueous lubricant inside the cylinder 203b-1, at this time, the one-way valve inside the liquid discharge pipe 203c is opened, the aqueous lubricant is discharged through the liquid discharge pipe 203c and flows onto the vertical rod 201b, the vertical rod 201b is lubricated, the phenomenon that the floating ball 201c is clamped due to impurities attached to the vertical rod 201b is avoided, the sensitivity of the floating ball switch 201 is increased, and at the same time, the aqueous lubricant is extruded and discharged onto the vertical rod 201b by the piston piece 203b-4 after the water level drops, so that the aqueous lubricant and water are prevented from being mixed with water, and the lubricating effect is increased.
Example 2
Referring to fig. 1, 2, 3, 7, 9 and 10, this embodiment is different from the first embodiment in that: the inner fixing sleeve 301 comprises a first sleeve 301a, a second flange plate 301b arranged at the top end of the first sleeve 301a and a filter screen plate 301c arranged at the bottom end of the first sleeve 301 a; wherein, the filter screen plate 301c can filter the water entering the inner fixing sleeve 301 and isolate large particle impurities contained in the water;
specifically, the outer rotating sleeve 302 includes a second sleeve 302a, a sliding groove 302b disposed on a sidewall of the second sleeve 302a, a cleaning rod 302c disposed at a bottom end of the second sleeve 302a, and a cleaning brush 302d disposed on an upper surface of the cleaning rod 302c and contacting a lower surface of the filter screen plate 301c, the outer rotating sleeve 302 is further provided with a driving member 302e for driving the second sleeve 302a to rotate, the driving member 302e includes a moving toothed ring 302e-1 disposed on the second sleeve 302a and a decelerating structure 302e-2 disposed at one side of the second sleeve 302a, when the decelerating structure 302e-2 is engaged with the moving toothed ring 302e-1, the moving toothed ring 302e-1 is driven to rotate, the second sleeve 302a is driven to rotate while the moving toothed ring 302e-1 rotates, the cleaning rod 302c can be driven to rotate while the second sleeve 302a rotates, so that the lower surface of the filter screen plate 301c can be cleaned by the cleaning brush 302d on the cleaning rod 302c, thereby preventing the filter screen plate 301c from being blocked.
Further, the moving toothed ring 302e-1 includes a toothed ring body 302e-11, an upper annular groove 302e-12 provided on an upper surface of the toothed ring body 302e-11, a lower annular groove 302e-13 provided on a lower surface of the toothed ring body 302e-11, a slider 302e-14 provided on an inner wall of the toothed ring body 302e-11 and matching with the sliding groove 302b, and a push rod 302e-15 provided in the upper annular groove 302e-12, a top end of the push rod 302e-15 extends above the second flange 301b and is connected with a second wedge block 302e-16 matching with the first wedge block 203b-5, wherein the toothed ring body 302e-11 can be slidably connected with the sliding groove 302b on a side wall of the second sleeve 302a through the slider 302e-14, a bottom end of the push rod 302e-15 is mounted on a portion of the upper annular groove 302e-12, and a bottom end of the push the second wedge block 302e-15 to move up through the ball when the toothed ring body 302e-11 rotates, the push rod 302e-15 to move up the second wedge block 302 e-5 and push the second wedge block 203b upward to move the second wedge block 203 e-5.
Further, the decelerating structure 302e-2 comprises a main gear 302e-21 disposed on the main shaft 103, a plurality of planet gears 302e-22 disposed on the outer side of the main gear 302e-21, and an outer ring gear 302e-23 disposed on the outer side of the plurality of planet gears 302e-22 and intermittently engaged with the moving ring gear 302e-1, wherein the main gear 302e-21 is driven to rotate when the main shaft 103 rotates, the main gear 302e-21 is rotated while being engaged with the plurality of planet gears 302e-22, and the plurality of planet gears 302e-22 are used to rotatably engage with the outer ring gear 302e-23, so as to realize the decelerating operation, and at least two sets of teeth are spaced on the side wall of the outer ring gear 302e-23, the number of the teeth is not less than the number of teeth on the ring gear main body 302e-11, wherein the planet gears 302e-22 and the outer ring gear 302e-23 are rotatably mounted on the upper end of the annular plate 104a.
Further, the bottom end of the second sleeve 302a is provided with a floating upper moving part 302f, the floating upper moving part 302f comprises a buoyancy plate 302f-1 sleeved on the second sleeve 302a, a limiting groove 302f-2 arranged on one side of the buoyancy plate 302f-1, and a supporting rod 302f-3 arranged above the buoyancy plate 302f-1, wherein the inner ring wall of the buoyancy plate 302f-1 is not connected with the outer wall of the second sleeve 302a, the inner wall of the side plate 102 is provided with a limiting rod matched with the limiting groove 302f-2, the bottom end of the limiting rod is provided with a baffle for placing the buoyancy plate 302f-1 to fall off, the top end of the supporting rod 302f-3 extends to be located in the lower ring groove 302e-13, and the part of the supporting rod 302f-3 located in the lower ring groove is provided with a ball, so that the friction force of the toothed ring main body 302e-11 contacting the toothed ring main body 302e-11 during rotation can be reduced.
Further, be equipped with on the curb plate 102 and be used for the fixed location structure 400 to liquid level monitoring subassembly 200 and protection component 300, location structure 400 is including setting up locating plate 401 on curb plate 102, set up the positioning screw 402 that first ring flange 202 and second ring flange 301b are run through on the locating plate 401, and a plurality of set nut 403 of being connected with positioning screw 402, wherein, positioning screw 402 bottom passes locating plate 401 and passes through set nut 403 and locating plate 401 fixed connection, positioning screw 402 top runs through first ring flange 202 and second ring flange 301b respectively, and utilize set nut 403 fixed, thereby can install liquid level monitoring subassembly 200 and protection component 300 on locating plate 401.
The rest of the structure was the same as in example 1.
The operation process comprises the following steps: firstly, the protection component 300 can penetrate through a through hole in a fixing plate, the lower half part of the protection component 300 is fixed below the fixing plate, then the top end of a positioning screw 402 penetrates through a second flange plate 301b and is fixed by a positioning nut 403, so that the protection component 300 is installed, then the bottom end of the liquid level monitoring component 200 is inserted into the protection component 300, the top end of the positioning screw 402 penetrates through a first flange plate 202 and is fixed by the positioning nut 403, so that the liquid level monitoring component 200 is installed and fixed, in the working process, when the liquid level at the upper end of the top cover 101 rises, water enters the inner fixing sleeve 301 through a filter screen plate 301c, and meanwhile, the filter screen plate 301c can filter impurities in water, so that the impurities are prevented from entering the inner fixing sleeve 301 to influence the operation of the float switch 201; meanwhile, when the liquid level is increased, the buoyancy plate 302f-1 moves upwards along the limiting rod, the buoyancy plate 302f-1 moves upwards while driving the supporting rod 302f-3 to move upwards, wherein the floating force of the buoyancy plate 302f-1 is greater than the gravity of the toothed ring main body 302e-11 and the elastic force of the return spring 203b-3, the supporting rod 302f-3 moves upwards while pushing the toothed ring main body 302e-11 to move upwards, when the toothed ring main body 302e-11 rises to a certain height, the supporting rod can be intermittently meshed with teeth on the outer toothed ring 302e-23, the outer toothed ring 302e-23 rotates at a constant speed, the toothed ring main body 302e-11 is intermittently driven to rotate, when the toothed ring main body 302e-11 rotates, the second sleeve 302a can be driven to rotate, the cleaning rod 302c can be driven to rotate while the second sleeve 302a rotates, and therefore the lower surface of the filter screen plate 301c can be cleaned by the cleaning brush 302d on the cleaning rod 302c, and the filter screen plate 301c is prevented from being blocked; meanwhile, the float switch 201 works, and when the water level reaches the early warning position, an alarm is given;
when the toothed ring main body 302e-11 is pushed to move upwards, the push rod 302e-15 on the toothed ring main body 302e-11 can move upwards synchronously, and push the second wedge block 302e-16 to move upwards, and the second wedge block 302e-16 can press the first wedge block 203b-5 while moving upwards, so that the piston rod 203b-2 is pressed, the return spring 203b-3 is compressed, the piston rod 203b-2 pushes the piston member 203b-4 to move, at the same time, when the piston member 203b-4 is pushed to move, the port of the liquid inlet pipe 203d is opened, and at the same time, the water-based lubricant in the annular storage box 203a enters the cylinder 203b-1 through the liquid inlet pipe 203 d;
when the liquid level drops, the buoyancy plate 302f-1 moves downwards and drives the toothed ring main body 302e-11 to move downwards and separate from the outer toothed ring 302e-23, the toothed ring main body 302e-11 drives the push rod 302e-15 to move downwards, at this time, extrusion of the first wedge-shaped block 203b-5 is stopped, the return spring 203b-3 pushes the piston rod 203b-2 and the first wedge-shaped block 203b-5 to reset, the piston rod 203b-2 pulls the piston member 203b-4 to reset, at this time, the piston member 203b-4 seals the port of the liquid inlet pipe 203d, at the same time, when the piston member 203b-4 resets, a certain extrusion force is generated on the water-based lubricant located inside the cylinder 203b-1, at this time, the one-way valve located inside the liquid outlet pipe 203c is opened, the water-based lubricant is discharged through the liquid outlet pipe 203c and flows onto the vertical rod 201b, lubrication is performed on the vertical rod 201b, the phenomenon that the floating ball body 201c is stuck due to the impurities attached to the vertical rod 201b is avoided, the sensitivity of the floating ball switch 201 is increased, and the water-based on the effect that the water-based on the water-based lubricant is increased by the extrusion of the piston member 203b and the mixed lubricant is avoided.
Example 3
Referring to fig. 1, 11, 12 and 13, this embodiment differs from the above embodiment in that:
the top cover is provided with 3 float switches 201 in total at different positions, the 3 float switches are arranged at the same height and are output at least by two nodes, the first nodes K1, K2 and K3 with lower heights are used for alarming by an upper computer, the second nodes K4, K5 and K6 with higher heights are selected by three and act on the machine set to stop after 10 seconds of delay.
The rest of the structure was the same as in example 2.
The operation process is as follows: in order to avoid the terminal wiring from being influenced by oil stain and humidity in a waterwheel chamber, the wiring terminal box is arranged outside the waterwheel chamber, and the shutdown loop adopts a mode that any two nodes of K4, K5 and K6 are connected in series and then connected in parallel, so that the action of any two nodes is realized, the function of emergency shutdown can be started, and meanwhile, misoperation can be effectively prevented; the alarm loop wiring mode connects K1, K2 and K3 in parallel, and the function that any node can send out an alarm signal can be realized.
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 water leakage monitoring device for a top cover of a water turbine generator set, which comprises,
the bearing assembly (100) comprises a top cover (101), a side plate (102) arranged on the top cover (101), a main shaft (103) arranged at the central part of the top cover (101), and a supporting part (104) arranged on the side plate (102);
the liquid level monitoring assembly (200) comprises a first flange plate (202) arranged above the top cover (101), and a float switch (201) arranged on the first flange plate (202); and the number of the first and second groups,
the protection assembly (300) comprises an inner fixing sleeve (301) arranged outside the float switch (201) main body and an outer rotating sleeve (302) arranged outside the inner fixing sleeve (301).
2. The hydroelectric generating set top cover water leakage monitoring device according to claim 1, wherein: the supporting part (104) comprises a ring-shaped plate (104 a) arranged above the top cover (101) and a bracket (104 b) arranged at the bottom end of the ring-shaped plate (104 a) and connected with the top end of the side plate (102).
3. The hydroelectric generating set top cover water leakage monitoring device according to claim 1, wherein: float switch (201) are including setting up lead wire box (201 a) of first ring flange (202) upper end, setting are in lead wire box (201 a) bottom and built-in magnetic induction switch's montant (201 b), and set up two float bodies (201 c) on montant (201 b).
4. The hydroelectric generating set top cover water leakage monitoring device of claim 3, wherein: the liquid level monitoring assembly (200) further comprises a lubricating structure (203) for lubricating the vertical rod (201 b), the lubricating structure (203) comprises an annular storage box (203 a) arranged at the lower end of the first flange plate (202), piston cylinders (203 b) arranged on two sides of the lower surface of the annular storage box (203 a), a liquid inlet pipe (203 d) arranged at the top end of each piston cylinder (203 b) and connected with the annular storage box (203 a), and a liquid outlet pipe (203 c) arranged at the bottom end of each piston cylinder (203 b), wherein one end of each liquid outlet pipe (203 c) extends to one side of the vertical rod (201 b) and is in contact with the vertical rod (201 b).
5. The hydroelectric generating set top cover water leakage monitoring device of claim 4, wherein: the piston cylinder (203 b) comprises a cylinder body (203 b-1), a piston rod (203 b-2) which is arranged inside the cylinder body (203 b-1) and one end of which extends to the outside of the piston cylinder (203 b), a piston piece (203 b-4) which is arranged inside the cylinder body (203 b-1) and is connected with one end of the piston rod (203 b-2), a first wedge block (203 b-5) which is arranged outside the piston cylinder (203 b) and is connected with the other end of the piston rod (203 b-2), and a return spring (203 b-3) which is arranged outside the piston cylinder (203 b) and is connected with the first wedge block (203 b-5), wherein the position of the piston piece (203 b-4) corresponds to the position of the liquid inlet pipe (203 d).
6. The hydroelectric generating set top cover water leakage monitoring device according to claim 5, wherein: the inner fixing sleeve (301) comprises a first sleeve (301 a), a second flange plate (301 b) arranged at the top end of the first sleeve (301 a), and a filter screen plate (301 c) arranged at the bottom end of the first sleeve (301 a);
the outer rotating sleeve (302) comprises a second sleeve (302 a), a sliding groove (302 b) arranged on the side wall of the second sleeve (302 a), a cleaning rod (302 c) arranged at the bottom end of the second sleeve (302 a), and a cleaning brush (302 d) arranged on the upper surface of the cleaning rod (302 c) and in contact with the lower surface of the screen plate (301 c), a driving part (302 e) used for driving the second sleeve (302 a) to rotate is further arranged on the outer rotating sleeve (302), and the driving part (302 e) comprises a moving toothed ring (302 e-1) arranged on the second sleeve (302 a) and a speed reducing structure (302 e-2) arranged on one side of the second sleeve (302 a).
7. The hydroelectric generating set top cover water leakage monitoring device of claim 6, wherein: the movable toothed ring (302 e-1) comprises a toothed ring main body (302 e-11), an upper annular groove (302 e-12) arranged on the upper surface of the toothed ring main body (302 e-11), a lower annular groove (302 e-13) arranged on the lower surface of the toothed ring main body (302 e-11), a sliding block (302 e-14) arranged on the inner wall of the toothed ring main body (302 e-11) and matched with the sliding groove (302 b), and a push rod (302 e-15) arranged in the upper annular groove (302 e-12), wherein the top end of the push rod (302 e-15) extends to the position above a second flange plate (301 b) and is connected with a second wedge block (302 e-16) matched with the first wedge block (203 b-5).
8. The hydroelectric generating set top cover water leakage monitoring device of claim 7, wherein: the speed reducing structure (302 e-2) comprises a main gear (302 e-21) arranged on the main shaft (103), a plurality of planet gears (302 e-22) arranged on the outer side of the main gear (302 e-21), and an outer gear ring (302 e-23) arranged on the outer side of the planet gears (302 e-22) and intermittently meshed with the moving gear ring (302 e-1).
9. The hydroelectric generating set top cover water leakage monitoring device of claim 8, wherein: the bottom end of the second sleeve (302 a) is provided with a floating upper moving part (302 f) piece, and the floating upper moving part (302 f) piece comprises a buoyancy plate (302 f-1) sleeved on the second sleeve (302 a), a limiting groove (302 f-2) arranged on one side of the buoyancy plate (302 f-1), and a supporting rod (302 f-3) arranged above the buoyancy plate (302 f-1).
10. The hydroelectric generating set top cover water leakage monitoring device of claim 9, wherein: be equipped with on curb plate (102) and be used for the fixed location structure (400) of liquid level monitoring subassembly (200) and protection component (300), location structure (400) are including setting up locating plate (401) on curb plate (102), setting on locating plate (401) and run through positioning screw (402) of first ring flange (202) and second ring flange (301 b) to and a plurality of set nut (403) of being connected with positioning screw (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211241194.5A CN115560924A (en) | 2022-10-11 | 2022-10-11 | Hydroelectric set top cap monitoring devices that leaks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211241194.5A CN115560924A (en) | 2022-10-11 | 2022-10-11 | Hydroelectric set top cap monitoring devices that leaks |
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| CN115560924A true CN115560924A (en) | 2023-01-03 |
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| CN202211241194.5A Pending CN115560924A (en) | 2022-10-11 | 2022-10-11 | Hydroelectric set top cap monitoring devices that leaks |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117366324A (en) * | 2023-12-06 | 2024-01-09 | 华能太原东山燃机热电有限责任公司 | Leakage monitoring device for pneumatic drain valve of steam turbine |
-
2022
- 2022-10-11 CN CN202211241194.5A patent/CN115560924A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117366324A (en) * | 2023-12-06 | 2024-01-09 | 华能太原东山燃机热电有限责任公司 | Leakage monitoring device for pneumatic drain valve of steam turbine |
| CN117366324B (en) * | 2023-12-06 | 2024-02-27 | 华能太原东山燃机热电有限责任公司 | Leakage monitoring device for pneumatic drain valve of steam turbine |
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