CN213748250U - Main shaft seal abrasion loss detection device - Google Patents
Main shaft seal abrasion loss detection device Download PDFInfo
- Publication number
- CN213748250U CN213748250U CN202022672844.4U CN202022672844U CN213748250U CN 213748250 U CN213748250 U CN 213748250U CN 202022672844 U CN202022672844 U CN 202022672844U CN 213748250 U CN213748250 U CN 213748250U
- Authority
- CN
- China
- Prior art keywords
- shaped
- water turbine
- top cover
- mounting
- main shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 238000005299 abrasion Methods 0.000 title claims description 9
- 238000007789 sealing Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 50
- 239000002184 metal Substances 0.000 claims description 23
- 239000000523 sample Substances 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model provides a main shaft seal wearing and tearing volume detection device belongs to energy storage power station auxiliary assembly field. The technical scheme is as follows: the hydraulic turbine outer top cover is arranged above the hydraulic turbine inner top cover, and sealing rings are arranged on the periphery of the hydraulic turbine main shaft and the hydraulic turbine inner top cover. The utility model has the advantages that: simple structure, it is convenient to install, makes things convenient for the staff to detect the wearing and tearing volume of sealing washer.
Description
Technical Field
The utility model relates to an energy storage power station auxiliary assembly field especially relates to a main shaft seal wearing and tearing volume detection device.
Background
The pumped storage power station pumps the electric energy to an upper reservoir when the electric load is low valley, and then discharges the water to a lower reservoir to generate power in the peak period of the electric load, also called an energy storage type hydropower station, and a plurality of devices are arranged in a pumped storage power station factory building, wherein, the water turbine is an important device of the pumped storage power station, during the daily operation of the water turbine, because a gap exists between an inner top cover of the water turbine and a main shaft of the water turbine, the water below the inner top cover of the water turbine can enter between the inner top cover of the water turbine and an outer top cover of the water turbine along the gap in the operation process of the water turbine, so as to cause water leakage, thereby having great influence on the whole water turbine, and preventing the water leakage, generally arranging a sealing ring on the periphery of the main shaft of the water turbine and the inner top cover of the water turbine to seal the gap, but the sealing ring is arranged in the whole water turbine, and the working personnel can not observe the condition inside the outer top cover of the water turbine in the daily work (the inner condition of the water turbine, the staff can not observe externally easily) to the condition of sealing washer wearing and tearing can not be observed, real-time supervision and detection can not be done, there is great hidden danger.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, it is convenient to install, makes things convenient for the staff to carry out the main shaft seal wearing and tearing volume detection device who detects to the wearing and tearing volume of sealing washer.
The utility model discloses a realize through following measure:
the device for detecting the abrasion loss of the main shaft seal is characterized by comprising a main shaft of a water turbine, wherein the periphery of the main shaft of the water turbine is provided with a water turbine inner top cover and a water turbine outer top cover, the water turbine outer top cover is arranged above the water turbine inner top cover, and sealing rings are arranged on the periphery of the main shaft of the water turbine and the water turbine inner top cover;
the wear detection mechanism comprises a Z-shaped bracket arranged on the outer top cover, an eddy current sensor arranged on the Z-shaped bracket and a detection platform arranged on the sealing ring;
the Z-shaped bracket comprises an L-shaped fixed frame, a first L-shaped movable frame and a second L-shaped movable frame;
the Z-shaped support comprises a vertical part A and a horizontal part A, the horizontal part A is arranged on the outer top cover through a bolt, the vertical part A is vertically arranged at the end part of the horizontal part A, a slot A is formed in the vertical part A, and the first L-shaped movable frame is inserted in the slot;
the first L-shaped movable frame comprises a vertical part B and a horizontal part B, the vertical part B is inserted into the slot A, the horizontal part B is arranged at the top end of the vertical part B, a slot B is formed in the end part of the horizontal part B, and the second L-shaped movable frame is inserted into the slot B;
the second L-shaped movable frame comprises a vertical part C and a horizontal part C, the horizontal part C is inserted into the slot B, the vertical part C is arranged at the end part of the horizontal part C, and an L-shaped mounting plate is arranged at the outer side of the vertical part C;
an eddy current sensor probe is arranged on the L-shaped mounting plate;
the detection platform comprises a metal round table arranged below the eddy current sensor probe, a through hole is formed in the position, corresponding to the metal round table, of the outer top cover, a supporting rod is arranged at the bottom of the metal round table, and the supporting rod penetrates through the through hole and is connected to the sealing ring;
preferably, the tail end of the supporting rod is provided with threads, and the sealing ring is provided with a connecting thread cylinder.
The utility model discloses a concrete characteristics have in addition:
the side of the top of the vertical part B is provided with a pair of mounting plates which are provided with arc-shaped buckles through rotating shafts, and the periphery of the electric eddy current sensor wire is provided with a protective pipe which is arranged in the arc-shaped buckles.
The mounting structure is characterized in that mounting through holes are formed in the free end portions of the vertical portion A and the horizontal portion B, mounting threaded cylinders are arranged on the peripheries of the mounting through holes, a plurality of mounting holes are formed in the vertical portion B and the horizontal portion C at equal intervals, and mounting screws are arranged in the mounting threaded cylinders, the mounting through holes and the mounting holes.
During installation, firstly installing the sealing ring, screwing the supporting rod on a connecting thread cylinder of the sealing ring (at the moment, the top end of the supporting rod is provided with the metal round table), fixing the L-shaped fixed frame on the outer top cover of the water turbine through a bolt, inserting the first L-shaped movable frame into the L-shaped fixed frame, inserting the second L-shaped movable frame into the first L-shaped movable frame, adjusting the position of the Z-shaped support according to the position of the metal round table, then installing an eddy current sensor probe on the L-shaped installation plate, positioning the eddy current sensor probe right above the metal round table, and after the installation;
when the water turbine operates daily, the eddy current sensor probe can measure the distance between the metal round platform and the probe surface, works as when the sealing washer is worn and torn, the sealing washer can drive the metal round platform descends, and the eddy current sensor probe can measure the distance between the metal round platform and the probe surface and change, can detect the wearing and tearing volume of sealing washer through the change of distance, and when the wearing and tearing volume of sealing washer was too big, can in time learn and change the sealing washer.
The utility model has the advantages that: simple structure, it is convenient to install, makes things convenient for the staff to detect the wearing and tearing volume of sealing washer.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 2.
Fig. 3 is a schematic view of the Z-shaped bracket structure in the embodiment of the present invention.
Wherein the reference numerals are: 1. a water turbine main shaft; 2. an outer top cover of the water turbine; 201. a through hole; 3. a seal ring; 4. a water turbine inner top cover; 5. a horizontal part A; 6. a vertical portion A; 7. a slot A; 8. a vertical portion B; 9. a horizontal part B; 10. a slot B; 11. a horizontal part C; 12. a vertical portion C; 13. an L-shaped mounting plate; 14. mounting a plate; 15. an arc-shaped buckle; 16. installing a screw rod; 17. mounting holes; 18. installing a threaded cylinder; 19. a metal circular table; 20. a support bar; 21. a waterproof pad; 23. a protective tube; 24. an eddy current sensor probe; 25. an L-shaped fixing frame; 26. a first L-shaped movable frame; 27. a second L-shaped movable frame.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
Referring to fig. 1-3, a main shaft seal abrasion loss detection device comprises a water turbine main shaft 1, wherein a water turbine inner top cover 4 and a water turbine outer top cover 2 are arranged on the periphery of the water turbine main shaft 1, the water turbine outer top cover 2 is arranged above the water turbine inner top cover 4, and a seal ring 3 is arranged on the periphery of the water turbine main shaft 1 and the water turbine inner top cover 4;
the abrasion detection mechanism comprises a Z-shaped support arranged on the outer top cover, an eddy current sensor arranged on the Z-shaped support and a detection platform arranged on the sealing ring 3;
the Z-shaped bracket comprises an L-shaped fixed frame 25, a first L-shaped movable frame 26 and a second L-shaped movable frame 27;
the Z-shaped support comprises a vertical part A6 and a horizontal part A5, the horizontal part A5 is arranged on the outer top cover through bolts, the vertical part A6 is vertically arranged at the end part of the horizontal part A5, an insertion groove A7 is formed in the vertical part A6, and a first L-shaped movable frame 26 is inserted into the insertion groove;
the first L-shaped movable frame 26 comprises a vertical part B8 and a horizontal part B9, the vertical part B8 is inserted into the slot A7, the horizontal part B9 is arranged at the top end of the vertical part B8, the slot B10 is arranged at the end part of the horizontal part B9, and the second L-shaped movable frame 27 is inserted into the slot B10;
the second L-shaped movable frame 27 comprises a vertical part C12 and a horizontal part C11, wherein the horizontal part C11 is inserted into the slot B10, the end part of the horizontal part C11 is provided with a vertical part C12, and the outer side of the vertical part C12 is provided with an L-shaped mounting plate 13;
an eddy current sensor probe 24 is arranged on the L-shaped mounting plate 13;
the detection platform comprises a metal circular truncated cone 19 arranged below the eddy current sensor probe 24, a through hole 201 is formed in the position, corresponding to the metal circular truncated cone 19, of the outer top cover, a support rod 20 is arranged at the bottom of the metal circular truncated cone 19, and the support rod 20 penetrates through the through hole 201 and is connected to the sealing ring 3;
preferably, the end of the support rod 20 is provided with a thread, and the sealing ring 3 is provided with a connecting thread cylinder.
The side surface of the top of the vertical part B8 is provided with a pair of mounting plates 14, an arc-shaped buckle 15 is arranged between the pair of mounting plates 14 through a rotating shaft, a protective pipe 23 is arranged on the periphery of a lead of the eddy current sensor, and the protective pipe 23 is arranged in the arc-shaped buckle 15.
The free end parts of the vertical part A6 and the horizontal part B9 are provided with mounting through holes, mounting threaded cylinders 18 are arranged on the peripheries of the mounting through holes, a plurality of mounting holes 17 are formed in the vertical part B8 and the horizontal part C11 at equal intervals, and mounting screws 16 are arranged in the mounting threaded cylinders 18, the mounting through holes and the mounting holes 17.
When the device is installed, firstly, the sealing ring 3 is installed, the supporting rod 20 is screwed on a connecting threaded cylinder of the sealing ring 3 (at the moment, the top end of the supporting rod 20 is provided with the metal round table 19), the L-shaped fixed frame 25 is fixed on the outer top cover 2 of the water turbine through bolts, the first L-shaped movable frame 26 is inserted into the L-shaped fixed frame 25, the second L-shaped movable frame 27 is inserted into the first L-shaped movable frame 26, the position of the Z-shaped bracket is adjusted according to the position of the metal round table 19, then, the eddy current sensor probe 24 is installed on the L-shaped installation plate 13, the eddy current sensor probe 24 is positioned right above the metal round table 19, and after the installation is finished;
when the water turbine operates daily, the eddy current sensor probe 24 can measure the distance between the metal round platform 19 and the surface of the probe, when the sealing ring 3 is worn, the sealing ring 3 can drive the metal round platform 19 to descend, the eddy current sensor probe 24 can measure the distance between the metal round platform 19 and the surface of the probe to change, the abrasion loss of the sealing ring 3 can be detected through the change of the distance, and when the abrasion loss of the sealing ring 3 is too large, the sealing ring 3 can be timely known and replaced.
The technical features that the utility model has not been described can be realized through or adopt prior art, and no longer give unnecessary details here, and of course, the above-mentioned explanation is not right the utility model discloses a restriction, the utility model discloses also not only be limited to the above-mentioned example, ordinary skilled person in this technical field is in the utility model discloses a change, modification, interpolation or replacement made in the essential scope also should belong to the utility model discloses a protection scope.
Claims (3)
1. The device for detecting the abrasion loss of the main shaft seal is characterized by comprising a main shaft of a water turbine, wherein the periphery of the main shaft of the water turbine is provided with a water turbine inner top cover and a water turbine outer top cover, the water turbine outer top cover is arranged above the water turbine inner top cover, and sealing rings are arranged on the periphery of the main shaft of the water turbine and the water turbine inner top cover;
the abrasion detection mechanism comprises a Z-shaped support arranged on the outer top cover of the water turbine, an eddy current sensor arranged on the Z-shaped support, and a detection platform arranged on the sealing ring;
the Z-shaped bracket comprises an L-shaped fixed frame, a first L-shaped movable frame and a second L-shaped movable frame;
the Z-shaped support comprises a vertical part A and a horizontal part A, the horizontal part A is arranged on the outer top cover through a bolt, the vertical part A is vertically arranged at the end part of the horizontal part A, a slot A is formed in the vertical part A, and the first L-shaped movable frame is inserted in the slot;
the first L-shaped movable frame comprises a vertical part B and a horizontal part B, the vertical part B is inserted into the slot A, the horizontal part B is arranged at the top end of the vertical part B, a slot B is formed in the end part of the horizontal part B, and the second L-shaped movable frame is inserted into the slot B;
the second L-shaped movable frame comprises a vertical part C and a horizontal part C, the horizontal part C is inserted into the slot B, the vertical part C is arranged at the end part of the horizontal part C, and an L-shaped mounting plate is arranged at the outer side of the vertical part C;
an eddy current sensor probe is arranged on the L-shaped mounting plate;
the detection platform comprises a metal round platform arranged below the eddy current sensor probe, the outer top cover corresponds to the metal round platform, a through hole is formed in the position of the metal round platform, a supporting rod is arranged at the bottom of the metal round platform, and the supporting rod penetrates through the through hole and is connected to the sealing ring.
2. The spindle seal wear amount detection device according to claim 1, wherein a pair of mounting plates are arranged on the top side surface of the vertical portion B, an arc-shaped buckle is arranged between the pair of mounting plates through a rotating shaft, and a protection pipe is arranged on the periphery of the current vortex sensor lead and is arranged in the arc-shaped buckle.
3. The main shaft seal wear amount detection device according to claim 1, wherein the free end portions of the vertical portion a and the horizontal portion B are both provided with mounting through holes, the mounting through holes are peripherally provided with mounting threaded cylinders, the vertical portion B and the horizontal portion C are provided with a plurality of mounting holes at equal intervals, and the mounting threaded cylinders, the mounting through holes and the mounting holes are provided with mounting screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022672844.4U CN213748250U (en) | 2020-11-18 | 2020-11-18 | Main shaft seal abrasion loss detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022672844.4U CN213748250U (en) | 2020-11-18 | 2020-11-18 | Main shaft seal abrasion loss detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213748250U true CN213748250U (en) | 2021-07-20 |
Family
ID=76825837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022672844.4U Active CN213748250U (en) | 2020-11-18 | 2020-11-18 | Main shaft seal abrasion loss detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213748250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504105A (en) * | 2020-11-18 | 2021-03-16 | 国家电网有限公司 | Main shaft seal abrasion loss detection device |
-
2020
- 2020-11-18 CN CN202022672844.4U patent/CN213748250U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504105A (en) * | 2020-11-18 | 2021-03-16 | 国家电网有限公司 | Main shaft seal abrasion loss detection device |
| CN112504105B (en) * | 2020-11-18 | 2024-07-09 | 国家电网有限公司 | Main shaft seal abrasion loss detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213748250U (en) | Main shaft seal abrasion loss detection device | |
| CN112504105B (en) | Main shaft seal abrasion loss detection device | |
| CN202166494U (en) | Device for monitoring fastening state of bolt | |
| CN207007278U (en) | A kind of hydraulic engineering Level monitor | |
| CN212688899U (en) | River channel garbage intercepting device | |
| CN210266305U (en) | High-pressure flange device | |
| CN111648349A (en) | Corrosion protection device for tidal range zone part of marine environment steel pipe pile | |
| CN104772347A (en) | Mounting structure for linear displacement sensor of screw-down oil cylinder | |
| CN209856245U (en) | Shield constructs owner bearing monitoring devices | |
| CN216206565U (en) | A alarm equipment for hydraulic and hydroelectric engineering | |
| CN204255449U (en) | A kind of hydropower station water level sniffer | |
| CN216157301U (en) | Auxiliary fixing device for power transmission tower | |
| CN206019349U (en) | A kind of snap ring-type erecting by overhang | |
| CN217880501U (en) | Alarm device for water flooding workshop of pumped storage power station | |
| CN221170739U (en) | Sealing structure and mixed flow pump | |
| CN215452088U (en) | Hydropower engineering emergency power distribution cabinet | |
| CN214093548U (en) | Double-hanging type pipeline anti-seismic support | |
| CN215252713U (en) | Tail water backflow preventing device for hydropower station | |
| CN213340754U (en) | Electrical equipment grounding device of hydraulic power plant | |
| CN220056284U (en) | Water wheel generator set water wheel room operation protection device fixed on pit lining | |
| CN111847190A (en) | Mine winder tail rope monitoring device | |
| CN217111076U (en) | Arrangement structure of flood-proof alarm monitoring device of large hydropower station | |
| CN214008066U (en) | Reliable-sealing non-accumulation motor sealing ring for robot | |
| CN213270003U (en) | Mechanism capable of quickly adjusting clearance between turbine bearing and oil shield | |
| CN220011089U (en) | Chain breakage detection device of bucket elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |