CN114134862B - Underwater trash device with water blocking function - Google Patents
Underwater trash device with water blocking function Download PDFInfo
- Publication number
- CN114134862B CN114134862B CN202111303111.6A CN202111303111A CN114134862B CN 114134862 B CN114134862 B CN 114134862B CN 202111303111 A CN202111303111 A CN 202111303111A CN 114134862 B CN114134862 B CN 114134862B
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- Prior art keywords
- frame
- water
- blank
- trash rack
- plate
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
- E02B8/023—Arresting devices for waterborne materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Barrages (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
The invention discloses an underwater trash rack with a water blocking function, which comprises a trash rack and a water blocking blank plate, wherein the trash rack comprises a frame, the size of the frame is matched with an external water supply and intake and can be fixedly connected with the water supply and intake, the water blocking blank plate is the same as the shape and the size of the frame, and the water blocking blank plate covers the frame and is detachably and fixedly connected with the frame, so that a water blocking effect is achieved. The waterproof sealing plate which can be detached from the trash rack is additionally arranged, the installation is simple and convenient, the connection strength is high, the function of isolating a water source from the trash rack at the underwater water intake is realized, the waterproof sealing plate is suitable for an old hydropower station, the large-scale transformation of the water supply and intake of the old hydropower station is not needed, the waterproof function can be realized, and the overhaul of a first gate is convenient.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to an underwater trash device with a water blocking function.
Background
The hydroelectric station is provided with a hydroelectric generating set technical water supply system, in order to prevent large dirt from entering and obstructing the operation of the technical water supply system, a trash device is usually arranged at a technical water supply water intake, but the trash device can only block the dirt from entering and cannot play a role in blocking water.
However, the method cannot overhaul the first gate and cannot overhaul the pipeline from the trash device to the first gate, and the first gate is easy to rust, leak, jam and the like along with years of operation, so that the overhaul of a technical water supply system and the operation of a water turbine set are affected.
The prior art proposes a scheme of taking a gate and a trash device as a whole, but the scheme only moves the first valve forward to the trash device, which still has the problem that the first gate, namely the gate of the trash device, cannot be overhauled, and meanwhile, the scheme needs to make a great deal of modifications to a water supply and intake and an internal pipeline, and is only applicable to newly constructed hydropower stations, and cannot adapt to the water supply and intake and the internal pipeline of old hydropower stations.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the underwater trash device with the water blocking function can be suitable for old water supply and intake ports, and the water blocking function is achieved.
In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a take underwater trash rack device of function that blocks water, includes trash rack and blocks water stifled blank, the trash rack includes the frame, frame size and outside water supply intake adaptation and can with water supply intake fixed connection, it is the same with frame shape size to block water blank, block water blank cover frame and with frame detachably fixed connection to play the effect of blocking water.
The invention has the beneficial effects that: the waterproof sealing plate which can be detached from the trash rack is additionally arranged, the installation is simple and convenient, the connection strength is high, the function of isolating a water source from the trash rack at the underwater water intake is realized, the waterproof sealing plate is suitable for an old hydropower station, the large-scale transformation of the water supply and intake of the old hydropower station is not needed, the waterproof function can be realized, and the overhaul of a first gate is convenient.
Drawings
Fig. 1 is a schematic front view of a structure of a trash rack according to an embodiment of the present invention;
fig. 2 is a schematic side view of a structure of a trash rack according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a water blocking blank according to an embodiment of the present invention.
Description of the reference numerals:
1. a frame; 11. an upper frame; 12. a lower frame; 2. a grid bar; 3. ear plates; 4. a blank plate fixing bolt; 5. a water-blocking blank; 6. a ball valve; 7. and positioning holes.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1-3, an embodiment of the present invention provides an underwater trash rack with a water blocking function, including a trash rack and a water blocking blank, where the trash rack includes a frame, the frame is fixedly connected with a water supply intake and has a size adapted to a size of an external water supply intake, the water blocking blank has the same shape and size as the frame, and the water blocking blank covers the frame and is detachably and fixedly connected with the frame.
From the above description, the beneficial effects of the invention are as follows: the waterproof sealing plate which can be detached from the trash rack is additionally arranged, the installation is simple and convenient, the connection strength is high, the function of isolating a water source from the trash rack at the underwater water intake is realized, the waterproof sealing plate is suitable for an old hydropower station, the large-scale transformation of the water supply and intake of the old hydropower station is not needed, the waterproof function can be realized, and the overhaul of a first gate is convenient.
Further, the water-blocking blank plate is detachably and fixedly connected with the frame through a bolt structure.
From the description, the water-blocking blank for the bolted connection of the trash rack has the advantages of simple and convenient installation and high connection strength.
Further, the frame is a hollow frame and comprises an upper frame and a lower frame, wherein the upper frame and the lower frame are symmetrically arranged in parallel.
From the above description, the hollow frame is not affected by internal stress when being acted by force perpendicular to the shaft, so that the strength is higher and the material cost is lower.
The lower frame is fixed with a plurality of blank fixing bolts towards one side of the upper frame, holes are formed in positions, facing each blank fixing bolt, of the upper frame, each blank fixing bolt correspondingly extends into each hole of the upper frame, and the water-blocking blank is detachably and fixedly connected with the frame through the blank fixing bolts.
From the above description, the structure is beneficial to the upper frame to share the stress of the blank fixing bolt, and is beneficial to the increase of the structural strength of the joint of the blank fixing bolt and the lower frame.
Further, the waterproof sealing device also comprises a rubber sealing gasket, the shape and the size of the rubber sealing gasket are the same as those of the frame, through holes are formed in the positions, opposite to the fixing bolts of the sealing plates, of the rubber sealing gasket, and the rubber sealing gasket is positioned between the waterproof sealing plates and the trash rack, covers the frame and is detachably and fixedly connected with the trash rack.
From the above description, the rubber gasket can effectively prevent the water-blocking blank plate from being fixed with the trash rack untight, and the water-blocking effect is improved.
Further, the blank plate fixing bolt extends out of the upper frame.
From the above description, the blank fixing bolt extends out of the upper frame, and the fixing bolt can play a role in positioning when the rubber sealing gasket is installed, so that the installation of the rubber sealing gasket is facilitated.
Further, the water-blocking blank is provided with a ball valve, and a through hole is formed in the position, opposite to the ball valve, of the rubber sealing gasket.
As can be seen from the above description, the ball valve functions as a water filling valve, and when the water blocking blank plate needs to be detached, the ball valve is opened to fill water, so that the internal and external water pressures are balanced, and the water blocking blank plate can be easily detached.
Furthermore, the four sides of the outer side of the frame are respectively provided with an ear plate, and each ear plate is provided with a through hole.
It can be seen from the above description that the additional ear plate makes the trash rack suitable for old hydropower stations without disassembling the originally fixed bolts, and the trash rack can be fixedly connected with the newly buried bolts of the water supply and intake through the additional through holes of the ear plate.
Further, the trash rack comprises a plurality of grid bars, two ends of each grid bar are fixedly connected with the upper edge and the lower edge of the frame respectively, and the grid bars are uniformly distributed.
The longitudinal arrangement of the grid bars is more suitable for underwater stress distribution, and the overall structural strength of the trash rack is improved.
Further, the ear plates at the upper and lower edges of the frame are more than the ear plates at the left and right edges.
According to the description, the earplates at the left and right edges of the earplates at the upper and lower edges of the frame are more suitable for underwater stress distribution, and the edges of the earplates at the edges, which are greatly affected by stress, are less affected by stress, so that the overall stress distribution is facilitated, and the mounting strength of the trash rack is improved.
The invention is suitable for water blocking of various underwater water supply and intake ports, such as underwater water supply ports and underwater intake ports of various pump stations and hydropower stations.
Example 1
Referring to fig. 1-3, an underwater trash rack with water blocking function of the present embodiment includes a trash rack and a water blocking blank 5, where the water blocking blank 5 can be installed on the trash rack to realize the function of isolating water source when the first gate of the water supply system needs to be overhauled and maintained. The trash rack is connected with the water-blocking blank 5 by bolts, and has the advantages of convenient installation and high connection strength.
Specifically, referring to fig. 1-2, the main structure and the size of the trash rack of the present embodiment are the same as those of the original trash rack of the hydropower station, that is, the trash rack is matched with the size of the water supply and intake, and in the present embodiment, the trash rack is specifically a frame grid type trash rack with a length of 398 x 35mm and is manufactured by welding 304 stainless steel plates. The frame 1 is hollow, the grid bars 2 are stainless steel bars with length, width and thickness of 388, 30, 6mm, the installation direction is longitudinal to ensure strength, and the installation interval is 30mm.
The upper and lower sides of the original trash rack frame are respectively provided with 3 screw holes, and the original trash rack frame is connected with bolts embedded around the water supply and intake ports of the technology, but because trash rack fixing bolts of the old hydropower station are often rusted seriously, threads are damaged, the trash rack cannot be guaranteed to be used continuously, and new installation fixing points are usually required to be selected.
The ear plates 3 are welded around the trash rack frame 1 of the embodiment and are formed by cutting angle steel, 3 pieces of the ear plates 3 are welded on the upper edge and the lower edge of the frame 1, 1 piece of the ear plates 3 are welded on the left edge and the right edge of the frame 1, the upper edge and the lower edge are two sides of the frame 1 along the vertical water surface direction, the left edge and the right edge are two sides of the frame 1 along the parallel water surface direction, the phi 14 holes are drilled in each ear plate 3 and used for installation and fixation, namely, 8 fixing points are arranged on a new trash rack, positioning holes 7 are formed in the positions, which are right opposite to the original installation fixing points, of the trash rack, and the trash rack is installed and positioned by corresponding assistance of the positioning holes 7 and original trash rack fixing bolts.
Referring to fig. 2, 2 screws with a specification phi 10 are welded on the inner sides of the middle parts of the frames of the lower frame 1214 of the trash rack, and hole sites are reserved at corresponding positions of the upper frame 111, so that bolts can extend out of the upper frame 111, shearing force applied to the welded joints of the bolts can be reduced, the running strength of the bolts can be ensured, and 8 groups of bolts are used for connecting the trash rack with the water-blocking blank 5.
Referring to fig. 3, the water-blocking blank 5 has the same size as the trash rack, the main body is a stainless steel plate with the length of 398 x 10mm and holes are drilled at the positions around the steel plate corresponding to the connecting screw rods of the trash rack frame 1, so that the water-blocking blank 5 is fixedly connected with the trash rack.
A DN15 stainless steel ball valve 6 is arranged in the middle of the water-blocking blank 5 and is used as a water filling valve, the ball valve 6 is closed when the water-blocking blank 5 is arranged, and the water-blocking blank 5 can play a role in isolating a water source; before the water-blocking blank 5 is disassembled, the ball valve 6 is opened to fill water, and after the front water pressure and the rear water pressure are balanced, the water-blocking blank 5 can be disassembled.
The waterproof sealing plate 5 and the trash rack are also provided with a rubber sealing pad which is the same size as the trash rack and the waterproof sealing plate 5, holes are formed in the positions, corresponding to the rubber sealing pad and the bolts, of the rubber sealing pad, the sealing pad can be installed between the trash rack and the sealing plate, the waterproof effect of the device is enhanced, the rubber sealing pad is provided with holes at the positions, corresponding to the ball valves 6 of the sealing plate, water is filled and pressed before the sealing plate is convenient to detach, the sealing plate fixing bolts 4 extend out of the upper frame 111 for a certain distance, and therefore the positioning and the installation of the rubber sealing pad are facilitated.
In summary, the underwater trash device with the water blocking function is provided by the invention, the water blocking blank plate which can be connected with the trash rack through bolts is additionally arranged, the installation is simple and convenient, the connection strength is high, the function of isolating a water source from the trash rack at the underwater water intake is realized, the water blocking device is suitable for an old hydropower station, the water blocking function can be realized without large-scale reconstruction of the water supply water intake of the old hydropower station, the first gate is convenient to overhaul, the water filling valve is arranged, the water blocking blank plate is convenient to detach, the integral arrangement of the trash rack is suitable for the stress distribution of the water supply water intake, and the structural strength is enhanced.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (4)
1. An underwater trash device with a water blocking function is characterized in that: the trash rack comprises a frame, the frame is fixedly connected with a water supply water intake, the size of the frame is matched with that of the external water supply water intake, the water blocking blank is identical to that of the frame in shape and size, ear plates are arranged on four sides of the outer side of the frame, through holes are formed in the ear plates respectively, the frame is a hollow frame and comprises an upper frame and a lower frame, the upper frame and the lower frame are symmetrically arranged in parallel, a plurality of blank fixing bolts are fixed on one side of the lower frame, opposite to the upper frame, holes are formed in the positions, opposite to the blank fixing bolts, of the upper frame, the blank fixing bolts correspondingly extend into the holes of the upper frame, and the water blocking blank is detachably and fixedly connected with the frame through the blank fixing bolts and covers the frame;
the sealing device comprises a frame, a sealing plate and a sealing plate, and is characterized by further comprising a rubber sealing pad, wherein the shape and the size of the rubber sealing pad are the same as those of the frame, through holes are formed in the positions, opposite to the fixing bolts of the sealing plates, of the rubber sealing pad, and the rubber sealing pad is positioned between the sealing plate and the sealing plate, covers the frame and is detachably and fixedly connected with the sealing plate;
the water-blocking blank plate is provided with a ball valve, a through hole is formed in the position, opposite to the ball valve, of the rubber sealing gasket, the ball valve is closed when the water-blocking blank plate is installed, the ball valve is opened for flushing before the water-blocking blank plate is disassembled, and the water-blocking blank plate can be disassembled after the front water pressure and the rear water pressure are balanced;
the water-blocking blank plate is a stainless steel plate.
2. The underwater trash device with water blocking function according to claim 1, wherein: the blank plate fixing bolt extends out of the upper frame.
3. The underwater trash device with water blocking function according to claim 1, wherein: the trash rack comprises a plurality of grid bars, two ends of each grid bar are fixedly connected with the upper edge and the lower edge of the frame respectively, and the grid bars are uniformly distributed.
4. An underwater trash rack with water blocking function according to claim 3, wherein: the ear plates at the upper and lower edges of the frame are more than the ear plates at the left and right edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111303111.6A CN114134862B (en) | 2021-11-05 | 2021-11-05 | Underwater trash device with water blocking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111303111.6A CN114134862B (en) | 2021-11-05 | 2021-11-05 | Underwater trash device with water blocking function |
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| Publication Number | Publication Date |
|---|---|
| CN114134862A CN114134862A (en) | 2022-03-04 |
| CN114134862B true CN114134862B (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111303111.6A Active CN114134862B (en) | 2021-11-05 | 2021-11-05 | Underwater trash device with water blocking function |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209989780U (en) * | 2019-05-17 | 2020-01-24 | 国家电网有限公司 | Power station is with water intaking mouth trash rack structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2958632B2 (en) * | 1997-07-14 | 1999-10-06 | 大同機工株式会社 | Construction method and temporary gate of water stop wall for river construction |
| EP1420116B1 (en) * | 2002-11-15 | 2017-05-31 | Nippon Steel & Sumitomo Metal Corporation | Metal sheet pile |
| CN105064293B (en) * | 2015-07-27 | 2017-10-27 | 崔振中 | A kind of manufacture method of integral type pumping plant gate trash rack grid |
| CN107022979A (en) * | 2015-09-06 | 2017-08-08 | 苏州汇诚智造工业设计有限公司 | A kind of software pumping plant gate trash rack |
| CN112196008A (en) * | 2020-09-04 | 2021-01-08 | 中国电建集团华东勘测设计研究院有限公司 | Water intake with maintenance cover and maintenance method |
| CN112112139A (en) * | 2020-10-28 | 2020-12-22 | 黄河勘测规划设计研究院有限公司 | Water retaining structure for trash rack and opening and closing method thereof |
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- 2021-11-05 CN CN202111303111.6A patent/CN114134862B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209989780U (en) * | 2019-05-17 | 2020-01-24 | 国家电网有限公司 | Power station is with water intaking mouth trash rack structure |
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| CN114134862A (en) | 2022-03-04 |
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