CN215593925U - Drainage blind plate of pumped storage power station - Google Patents
Drainage blind plate of pumped storage power station Download PDFInfo
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- CN215593925U CN215593925U CN202121904998.XU CN202121904998U CN215593925U CN 215593925 U CN215593925 U CN 215593925U CN 202121904998 U CN202121904998 U CN 202121904998U CN 215593925 U CN215593925 U CN 215593925U
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- blind plate
- plate
- connecting plate
- blind
- power station
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 9
- 238000002955 isolation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 239000000565 sealant Substances 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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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
Abstract
The utility model discloses a drainage blind plate of a pumped storage power station, which comprises a connecting plate and a blind plate; the connecting plate is of an annular structure, connecting holes are uniformly distributed in the middle of the connecting plate along the circumferential direction, a circular blind plate is arranged in the middle of the connecting plate, and corresponding drainage ports are formed in the blind plate and the connecting plate; the surface of the connecting plate is provided with a sealing surface which is used for smearing sealant during installation, aiming at the problem that field work is difficult due to untight closing of a valve in the field construction process, a thin pressure relief and flow guide blind plate is additionally arranged behind the valve under the condition that the isolation range is not required to be enlarged, and the condition that no water leakage exists in an overhaul area is ensured; the pressure relief and flow guide blind plate is simple to mount and dismount, a pipeline does not need to be dismounted, and the work amount is small; meanwhile, the blind plate can guide and discharge the water leakage of a superior water source, and the blind plate does not have pressure on one side, so that the blind plate is safe and reliable.
Description
Technical Field
The utility model belongs to the technical field of pumped storage power stations, and particularly relates to a drainage blind plate of a pumped storage power station.
Background
In the daily operation and maintenance process of a water supply and drainage pipeline, a certain valve is often not closed tightly, so that a plurality of problems are faced when the maintenance work of the pipeline and accessories behind the valve is carried out; for example: the replacement of the valve site leaks a large amount of water, the welding seam blowholes of the pipeline cannot be welded due to water leakage, the automatic elements of the pipeline cannot be detached, and the like. Under the condition, the isolation range is usually required to be expanded, but the expansion of the isolation range influences the operation of more equipment and even influences the operation of an adjacent unit; and sometimes face the situation that the isolation range cannot be expanded, for example: the upper stage of the valve has no other valves or the upper stage valve is not closed tightly. If direct construction is not solved, a large amount of accumulated water in a construction field appears, and constructors cannot normally construct and weld to influence the safety of the operation environment.
The most direct solution at present is to add a blind plate behind the upper valve, but the following problems exist: 1. the gap between the two flanges is extremely small, a normal blind plate cannot be installed, the pipeline can be installed only after being dismantled, and the construction work amount is large; 2. the gap between the two flanges is extremely small, the blind plate can be loaded only by reducing the thickness of the blind plate, and the blind plate body is bulged even has a fracture risk because the blind plate is pressed on one side after being fastened, so that the safety risk is high; 3. when the blind plate is removed, the problem of a large amount of water leakage during the removal of the blind plate under pressure at one side is also faced, and therefore, the research on the drainage blind plate of the pumped storage power station is necessary.
Disclosure of Invention
Aiming at the defects and problems of the existing equipment, the utility model provides the drainage blind plate of the pumped storage power station, which effectively solves the problem that the maintenance work of the pipeline and the accessories behind the valve is difficult due to the untight closing of the valve in the existing equipment.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a drainage blind plate of a pumped storage power station comprises a connecting plate and a blind plate; the connecting plate is of an annular structure, connecting holes are uniformly distributed in the middle of the connecting plate along the circumferential direction, a circular blind plate is arranged in the middle of the connecting plate, and corresponding drainage ports are formed in the blind plate and the connecting plate; the surface of the connecting plate is provided with a sealing surface, and the sealing surface is used for smearing sealing glue during installation.
Furthermore, an arc-shaped guide groove is formed in the blind plate in the circumferential direction, the guide grooves are arranged at intervals and are multiple, and two ends of each guide groove are communicated with the drainage port.
Furthermore, the discharge port is of a fan-shaped structure.
Furthermore, still include water-collecting device, water-collecting device includes water collecting funnel, water collecting funnel is located the lower part of discharge opening, and its lower part exit linkage has the leading water pipe.
Furthermore, an auxiliary plate is arranged on the outer side of the connecting plate, and a hanging hole for hanging the water collecting funnel is formed in the auxiliary plate.
The utility model has the beneficial effects that: the utility model sets a drainage blind plate with a water outlet, the thickness of the blind plate is slightly less than that of the sealing ring with the diameter, firstly, the sealing gasket between the two flange plates is removed, and the drainage blind plate is replaced to the original sealing gasket position, namely, a connecting plate is clamped between the flange plates on the pipeline, the connecting holes arranged on the connecting plate correspond to the connecting holes of the flange plates, and the connecting plate is reinforced by bolts, so that the drainage blind plate is fixed between the two connecting flanges, and the sealing plate is filled with sealing glue, thereby avoiding the leakage overflow and leading the leakage to flow out from the directional drainage outlet.
The auxiliary plate is arranged on the outer side of the connecting plate and used for adjusting the position of the drainage blind plate and distinguishing the direction of the drainage port to enable the drainage blind plate to be arranged downwards, meanwhile, the fixing of the drainage blind plate is firm, and the hanging hole formed in the auxiliary plate can be used for hanging a water collecting funnel or directly hanging or fixing the water collecting funnel on a pipeline.
Aiming at the problem that field work is difficult due to untight closing of a valve in the field construction process, a thin pressure relief and flow guide blind plate is additionally arranged behind the valve under the condition that the isolation range is not required to be enlarged, so that no water leakage in an overhaul area is ensured; the pressure relief and flow guide blind plate is simple to mount and dismount, a pipeline does not need to be dismounted, and the work amount is small; meanwhile, the blind plate can guide and discharge the water leakage of a superior water source, and the blind plate does not have pressure on one side, so that the blind plate is safe and reliable.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of another embodiment of the leakage blind plate.
Fig. 3 is a schematic view of a use mode of the leakage blind plate.
Fig. 4 is a schematic view of another use mode of the leakage flow blind plate.
The reference numbers in the figures are: the device comprises a connecting plate 1, a connecting hole 2, a blind plate 3, a drainage port 4, an auxiliary plate 5, a suspension hole 6, a diversion trench 7, a drainage blind plate 8, a water leakage valve 9, a water collecting funnel 10 and a water guide pipe 11.
Detailed Description
The utility model is further illustrated with reference to the following figures and examples.
Example 1: this embodiment aims at providing a pumped storage power station earial drainage blind plate, and the pipeline of mainly used pumped storage power station overhauls, and in daily operation and maintenance in-process, it is not tight often to appear a certain valve and close, faces a great deal of problem when leading to the maintenance work of pipeline and annex behind this valve to go on, for example: the on-spot a large amount of water leaks of change valve, and pipeline welding seam hole of sand hole is because the unable welding of leaking, and pipeline automation component can't be demolishd etc. has brought the puzzlement for the maintenance personal, and based on this, this embodiment provides a pumped storage power station earial drainage blind plate.
As shown in fig. 1, the drainage blind plate of the pumped storage power station comprises a connecting plate 1 and a blind plate 3; the connecting plate 1 is of an annular structure, connecting holes 2 are uniformly distributed in the middle of the connecting plate 1 along the circumferential direction, the connecting holes 2 are round holes and correspond to threaded holes in a flange plate on a pipeline, a round blind plate 3 is arranged in the middle of the connecting plate 1, corresponding discharge ports 4 are arranged on the blind plate 3 and the connecting plate 1, and when the connecting plate is specifically implemented, the discharge ports 4 are of a fan-shaped structure, and the blind plate can not bear pressure due to the relation of a pressure relief flow guide port, so that the blind plate 3 can be made very thin under the condition of ensuring safety, and the thickness of the blind plate can be made slightly smaller than that of a sealing ring; the thickness of the diversion pressure relief blind plate is only thin enough to ensure that the diversion blind plate can replace a sealing ring to be directly installed at the flange at the rear end of the valve after the bolt is loosened, the thickness of the normal blind plate is far larger than the thickness of the sealing ring and cannot be installed, the replacement of the diversion pressure relief blind plate and the sealing ring is realized, and the engineering quantity is greatly reduced.
The surface of connecting plate 1 is provided with sealed face, and sealed face is used for scribbling sealed glue when the installation to form sealedly between connecting plate 1 and the flange on original pipeline, avoid leaking and spill over around, and utilize the safe water conservancy diversion of leaking of pressure release water conservancy diversion mouth with higher level's valve, thereby overhaul the scene and can not ponding, guaranteed the clean of operational environment and the safe smooth of maintenance operation and go on.
Aiming at the problem that field work is difficult due to the fact that a valve is not tightly closed in the field construction process, a thin pressure relief flow guide blind plate is additionally arranged behind the valve under the condition that the isolation range is not required to be expanded, and water leakage in an overhaul area is avoided; the pressure relief and flow guide blind plate is simple to mount and dismount, a pipeline does not need to be dismounted, and the work amount is small; meanwhile, the blind plate can guide and discharge the water leakage of a superior water source, and the blind plate does not have pressure on one side, so that the blind plate is safe and reliable.
As shown in fig. 3-4, the thickness of the blind plate 3 is slightly less than that of the sealing ring with the pipe diameter, the sealing position on the surface of the blind plate 3 is provided with a finish-machined sealing surface, sealant can be coated at the position during installation, the sealing surface can play a certain sealing role when the drainage quantity of a bottom drainage port is insufficient when the water leakage of the valve is large, the drainage quantity can be increased by enlarging the bottom drainage port, the connecting plate 1 is provided with a connecting hole which is connected with a flange surface through a bolt, the position of installing the drainage blind plate is determined before use, and the flange connecting position behind the valve or at a certain position of a pipeline can be selected; then removing bolts at the upper part of the flange, loosening the bolts at the lower part, taking out the sealing ring from the upper part of the flange, simultaneously putting in a drainage blind plate, and tightening the bolts; the lower part is provided with a water collecting funnel and a diversion water pipeline according to the field situation to guide the leakage water to a required water outlet.
From this, pressure release water conservancy diversion blind plate is a thickness slightly less than the blind plate of taking pressure release water conservancy diversion mouth of the sealed pad thickness of pipeline flange, only need loosen all bolts of the flange face of the valve 9 construction side that will leak during the construction, and demolish first half bolt is whole, take out the sealing washer by upper portion, put into pressure release water conservancy diversion blind plate simultaneously, repack and tighten all bolts, water conservancy diversion pressure release mouth can install catchment funnel additional and with water drainage to the drainage department of flowing automatically can, there is water conservancy diversion pressure release mouth because of this blind plate, blind plate itself does not bear pressure, it does not have the leakage to have ensured the site operation environment, safety has been guaranteed when clear. After the work is finished, all the bolts on the flange face are loosened, the bolts on the upper half portion are removed, the pressure relief and flow guide blind plate is taken out from the upper portion, meanwhile, the new sealing ring is placed, and the state is restored to the state before construction after the bolts are installed and tightened.
Example 2: this example is substantially the same as example 1, except that: the present embodiment further describes the structure of the blind plate 3.
As shown in fig. 3, an arc-shaped diversion trench 7 is arranged on the blind plate 3 along the circumferential direction, the diversion trenches 7 are arranged at intervals and are multiple, and two ends of each diversion trench are communicated with the drainage port.
The effect of guiding gutter can assist the drainage in this embodiment, makes the pipeline internal water flow to the drainage mouth, because of pressure release water conservancy diversion blind plate itself does not bear pressure, higher level's valve is leaked water 9 and is all discharged from the drainage of pressure release water conservancy diversion mouth, so itself need not to increase sealed the pad, and pressure release water conservancy diversion blind plate circulated use after demolising, only need prepare each one of pressure release water conservancy diversion blind plate of various pipe diameters, can be in order to satisfy the user demand of whole factory.
Example 3: this example is substantially the same as example 1, except that: this embodiment is to having added water-collecting device.
As shown in fig. 3-4, the water collecting device comprises a water collecting funnel 10, the water collecting funnel 10 is positioned at the lower part of the discharge port, the outlet at the lower part is connected with a water conduit 11, when in specific installation, the water collecting funnel can be installed on a pipeline, or an auxiliary plate 5 is arranged at the outer side of the connecting plate, and a hanging hole 6 for hanging the water collecting funnel is arranged on the auxiliary plate 5.
Meanwhile, the auxiliary plate 6 is used for adjusting the position of the drainage blind plate 8, distinguishing the direction of the drainage port 4 and enabling the drainage port to be arranged downwards, meanwhile, the drainage blind plate 8 is to be fixed to a firm port, and the suspension hole 6 arranged on the auxiliary plate can also be used for hanging a water collection funnel or directly hanging the water collection funnel or fixing the water collection funnel on a pipeline.
Claims (5)
1. The utility model provides a pumped storage power station earial drainage blind plate which characterized in that: comprises a connecting plate and a blind plate; the connecting plate is of an annular structure, connecting holes are uniformly distributed in the middle of the connecting plate along the circumferential direction, a circular blind plate is arranged in the middle of the connecting plate, and corresponding drainage ports are formed in the blind plate and the connecting plate; the surface of the connecting plate is provided with a sealing surface, and the sealing surface is used for smearing sealing glue during installation.
2. The pumped-storage power station drain blind of claim 1, wherein: the blind plate is provided with arc-shaped guide grooves along the circumferential direction, the guide grooves are arranged at intervals and are provided with a plurality of guide grooves, and two ends of each guide groove are communicated with the drainage port.
3. The pumped-storage power station drain blind of claim 1, wherein: the discharge port is of a fan-shaped structure.
4. The pumped-storage power station drain blind of claim 1, wherein: still include water-collecting device, water-collecting device includes water collecting funnel, water collecting funnel is located the lower part of discharge opening, and its lower part exit linkage has the leading water pipe.
5. The pumped-storage power station drain blind of claim 4, wherein: an auxiliary plate is arranged on the outer side of the connecting plate, and a hanging hole for hanging the water collecting funnel is formed in the auxiliary plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121904998.XU CN215593925U (en) | 2021-08-16 | 2021-08-16 | Drainage blind plate of pumped storage power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121904998.XU CN215593925U (en) | 2021-08-16 | 2021-08-16 | Drainage blind plate of pumped storage power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215593925U true CN215593925U (en) | 2022-01-21 |
Family
ID=79882524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121904998.XU Active CN215593925U (en) | 2021-08-16 | 2021-08-16 | Drainage blind plate of pumped storage power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215593925U (en) |
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2021
- 2021-08-16 CN CN202121904998.XU patent/CN215593925U/en active Active
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