CN203822523U - Throttling pipeline for water supply of labyrinth ring of water turbine - Google Patents
Throttling pipeline for water supply of labyrinth ring of water turbine Download PDFInfo
- Publication number
- CN203822523U CN203822523U CN201420259455.0U CN201420259455U CN203822523U CN 203822523 U CN203822523 U CN 203822523U CN 201420259455 U CN201420259455 U CN 201420259455U CN 203822523 U CN203822523 U CN 203822523U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- throttling
- flange plate
- water
- labyrinth ring
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000007789 sealing Methods 0.000 abstract 2
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Hydraulic Turbines (AREA)
Abstract
The utility model provides a throttling pipeline for water supply of the labyrinth ring of a water turbine. The throttling pipeline is characterized by at least comprising non-return valves and a pipeline body, wherein the non-return valves are mounted on the pipeline body, throttling devices are further arranged on the pipeline body, and positioned in the non-return valves and in positions close to water outlets; each throttling device comprises a throttling orifice plate, bolts, two sealing rings and two flange plates, the two flange plates are respectively and fixedly mounted on the cross sections of the pipeline body, and the throttling orifice plate is clamped between the two flange plates; the throttling orifice plate adopts a double-layered type structure, and is composed of two same single plates tightly attached to each other, the two single plates can rotate relatively, circular throttling holes are uniformly distributed in the single plates, and the distribution manner of the throttling holes in the two single plates are consistent; the two sealing rings are respectively positioned on the contact surfaces of the throttling orifice plate and the flange plates. According to the throttling pipeline, the function of flow stabilizing can be realized, the influence on the non-return valves can be avoided, and the water flow can further be adjusted.
Description
Technical field
The utility model provides the one pipeline that dams, and relates in particular to a kind of pipeline that dams supplying water to labyrinth ring for water power plant water turbine or pumped storage power station pump turbine that is applied to.
Background technique
Water power plant or pumped storage power station unit generator operation as synchronous condenser or draw water in start-up course, for reducing active loss, generally with pressurized air by the hydraulic pressure in runner envelope to runner, allow runner rotate in air, now because upper labyrinth is anhydrous cooling, labyrinth ring and runner temperature progressively raise, excess Temperature can cause runner or labyrinth ring to damage, but cooling water is too much, can cause again unit active loss to increase, therefore upper and lower labyrinth ring water supply flow is generally controlled flow by the size of throttle orifice.Generally before and after upper and lower labyrinth ring water supply line check valve, throttle orifice is installed in order to ensure that flow is relatively stable.But before labyrinth ring water pipe check valve, throttling action causes that to impact current herein excessive in actual motion, easily cause check valve spool to come off, after coming off, rushes to pipeline downstream part throttle orifice with current spool, cause supply channel to stop up, pipe vibration increases simultaneously, affect the safe operation of unit, in order to ensure normal work and the unit safety stable operation of upper and lower labyrinth ring, must improve choke manifold.
Summary of the invention
The utility model provides a kind of pipeline that dams supplying water for water turbine labyrinth ring, solve the deficiency in background technique, the pipeline that dams that adopts the utility model to provide not only can play the effect of current stabilization, and can not impact check valve, can also regulating water flow.
Realizing the technological scheme that the utility model above-mentioned purpose adopts is:
A kind of pipeline that dams supplying water for water turbine labyrinth ring, at least comprise check valve and pipeline, check valve is installed on pipeline, on described pipeline, be also provided with cut-off device, described cut-off device is arranged in the position of check valve near water outlet, and described cut-off device is made up of restricting orifice, bolt, seal ring and flange plate, and wherein flange plate is provided with two, two flange plate are fixedly mounted on respectively on the section of pipeline, and restricting orifice is clipped between the two by two flange plate; Described restricting orifice is two-layer stratigraphic structure, formed by two identical veneers being close to mutually, two veneers can rotate relatively, on veneer, be evenly distributed with circular orifice, throttle orifice on two veneers distributes consistent, and described seal ring is provided with two, and two seal rings lay respectively on the surface of contact of restricting orifice and flange plate, described bolt is arranged between two flange plate, and two flange plate are fixed.
In two described veneers, the center of a veneer is provided with circular hole, and the center of another veneer is provided with the protruding rotating shaft matching with circular hole, and rotating shaft is arranged in circular hole, and rotating shaft can be rotated in circular hole.
The pipeline that dams supplying water for water turbine labyrinth ring that the utility model provides compared with prior art has following advantage: the utility model is provided with cut-off device a side of check valve water outlet, can ensure that labyrinth ring supplies water normal, guarantee normal work and the unit safety stable operation of upper and lower labyrinth ring.Meanwhile, in the time that needs regulate water output, only need back out bolt, the restricting orifice being arranged between two flange plate be taken out, and rotate accordingly two veneers, thereby regulate hole size, i.e. adjustable water flow.
Brief description of the drawings
The overall structure schematic diagram of the pipeline that dams supplying water for water turbine labyrinth ring that Fig. 1 provides for the utility model;
Fig. 2 is the structural representation of cut-off device;
In figure: 1-pipeline, 2-check valve, 3-cut-off device, 4-restricting orifice, 5-bolt, 6-seal ring, 7-flange plate.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done to detailed specific description, but protection domain of the present utility model is not limited to following examples.
The structure of the pipeline that dams supplying water for water turbine labyrinth ring that the utility model provides as shown in Figure 1, at least comprise check valve 2 and pipeline 1, check valve 2 is installed on pipeline 1, on described pipeline 1, be also provided with cut-off device 3, described cut-off device 3 is arranged in the position of check valve 2 near water outlet.
The structure of described cut-off device as shown in Figure 2, formed by restricting orifice 4, bolt 5, seal ring 6 and flange plate 7, wherein flange plate 7 is provided with two, and two flange plate 7 are fixedly mounted on respectively on the section of pipeline, and restricting orifice 4 is clipped between the two by two flange plate 7; Described seal ring 6 is provided with two, and two seal rings 6 lay respectively on the surface of contact of restricting orifice 4 and flange plate 7, and described bolt 5 is arranged between two flange plate 7, and two flange plate are fixed.
Described restricting orifice 4 is two-layer stratigraphic structure, is made up of, in two veneers two identical veneers being close to mutually, the center of a veneer is provided with circular hole, the center of another veneer is provided with the protruding rotating shaft matching with circular hole, and rotating shaft is arranged in circular hole, and rotating shaft can be rotated in circular hole.On veneer, be evenly distributed with circular orifice, the throttle orifice on two veneers distributes consistent.
Claims (2)
1. the pipeline that dams supplying water for water turbine labyrinth ring, at least comprise check valve and pipeline, check valve is installed on pipeline, it is characterized in that: on described pipeline, be also provided with cut-off device, described cut-off device is arranged in the position of check valve near water outlet, described cut-off device is made up of restricting orifice, bolt, seal ring and flange plate, wherein flange plate is provided with two, two flange plate are fixedly mounted on respectively on the section of pipeline, and restricting orifice is clipped between the two by two flange plate; Described restricting orifice is two-layer stratigraphic structure, formed by two identical veneers being close to mutually, two veneers can rotate relatively, on veneer, be evenly distributed with circular orifice, throttle orifice on two veneers distributes consistent, and described seal ring is provided with two, and two seal rings lay respectively on the surface of contact of restricting orifice and flange plate, described bolt is arranged between two flange plate, and two flange plate are fixed.
2. the pipeline that dams supplying water for water turbine labyrinth ring according to claim 1, it is characterized in that: in two described veneers, the center of a veneer is provided with circular hole, the center of another veneer is provided with the protruding rotating shaft matching with circular hole, rotating shaft is arranged in circular hole, and rotating shaft can be rotated in circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259455.0U CN203822523U (en) | 2014-05-20 | 2014-05-20 | Throttling pipeline for water supply of labyrinth ring of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259455.0U CN203822523U (en) | 2014-05-20 | 2014-05-20 | Throttling pipeline for water supply of labyrinth ring of water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822523U true CN203822523U (en) | 2014-09-10 |
Family
ID=51478033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420259455.0U Expired - Lifetime CN203822523U (en) | 2014-05-20 | 2014-05-20 | Throttling pipeline for water supply of labyrinth ring of water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108378707A (en) * | 2018-02-08 | 2018-08-10 | 无锡鼎加弘思饮品科技有限公司 | There is the flowmeter and its current stabilization method of current-stabilizing structure inside capsule coffee machine |
-
2014
- 2014-05-20 CN CN201420259455.0U patent/CN203822523U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108378707A (en) * | 2018-02-08 | 2018-08-10 | 无锡鼎加弘思饮品科技有限公司 | There is the flowmeter and its current stabilization method of current-stabilizing structure inside capsule coffee machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |