CN109667246A - A kind of nuclear power plant's water intaking open channel sewage blocking device - Google Patents
A kind of nuclear power plant's water intaking open channel sewage blocking device Download PDFInfo
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- CN109667246A CN109667246A CN201910111669.0A CN201910111669A CN109667246A CN 109667246 A CN109667246 A CN 109667246A CN 201910111669 A CN201910111669 A CN 201910111669A CN 109667246 A CN109667246 A CN 109667246A
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- barrier net
- open channel
- garbage barrier
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- blocking device
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
- E02B5/085—Arresting devices for waterborne materials, e.g. gratings
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
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Abstract
The invention discloses a kind of nuclear power plant water intaking open channel sewage blocking device, including garbage barrier net, several straight stakes, several straight stakes are fixedly connected on water intaking open channel bottom along water intaking open channel width direction "-" types arrangement, straight stake bottom end, and straight stake is fixedly connected with cushion cap；The garbage barrier net is located at straight stake close to the side of water intaking open channel upstream, and garbage barrier net upper end is connect with main push-towing rope rope, and main push-towing rope rope is connect with cushion cap and main push-towing rope rope both ends are fixedly connected on the shore protection of water intaking open channel two sides；Garbage barrier net lower end is connect with auxiliary cable, and auxiliary cable connects anchor block by anchor chain；Cushion cap upper end is fixedly connected with lifting device, and lifting device is connect with main push-towing rope rope.Sewage blocking device in the present invention blocks dirty structure to be fixed, and the globality of structure is strong, and structure resistance horizontal bending moment ability is strong, can bear the horizontal loads of biggish wind, wave and water flow, the safety coefficient of structure is higher, improves using effect of the invention.
Description
Technical field
The present invention relates to field of civil engineering more particularly to a kind of nuclear power plant water intaking open channel sewage blocking devices.
Background technique
In recent years, with the continuous variation of the marine eco-environment, marine growth and sea repeatedly occur for domestic and international Coastal Nuclear Power Plant
Foreign foreign matter largely assembles the phenomenon that blocking nuclear power plant's intake, leads to the events such as nuclear power unit drop power, shutdown shutdown, causes huge
Cause social extensive concern while big economic loss, becomes the important hidden danger of nuclear power unit safe operation.
As the water intaking source of nuclear power plant's recirculating cooling water system and essential service water system, the direct shadow of intake operating status
Ring the safe operation and reliability of power plant.For guarantee nuclear power plant water intaking safety, many Coastal Nuclear Power Plants water intaking open channel mouth door and
Setting is mounted with sewage blocking device, domestic existing sewage blocking device point predominantly floatation type sewage blocking device and fixed fragment on the inside of open channel
Formula sewage blocking device.
Floatation type sewage blocking device uses floating drum+anchorage block+garbage barrier net pattern, its working principle is that: garbage barrier net passes through floating
Cylinder provides buoyancy, and main push-towing rope rope, anchor chain and anchorage block on two sides open channel shore protection (breakwater) and underwater anchorage are linked to be entirety,
To make garbage barrier net form enclosed construction on water intaking open channel section, dirty function is blocked in realization.This sewage blocking device has the disadvantages that
(1) floatation type sewage blocking device capacity of anti-storm is weaker, at the poor water intaking open channel mouth door of sheltering condition, wind, wave, stream connection
Under cooperation is used, especially when marine growth is largely broken out, when garbage barrier net is blocked serious, garbage barrier net stress is bigger, from the angle of stress
For degree, design margin evaluation is lower, is easily damaged.(2) when stormy waves is larger, the floating materials such as marine organisms and ocean foreign matter
It is easy to cross garbage barrier net to enter on the inside of water intaking open channel.In addition, the slope of garbage barrier net and water intaking open channel two sides shore protection (breakwater)
Between there is also gap loophole, form the channel that marine growth enters nuclear power unit intake, can not achieve tunneling boring and intercept function.
Fixed split blade type sewage blocking device uses split blade type garbage barrier net+pile foundation support table pattern, its working principle is that: garbage barrier net
Left and right ends pass through the straight stake in front row and the cushion cap that connection fastener is connected to different pile foundation support tables respectively, are formed between pile foundation support table
Dirty function is blocked in split blade type plane net, realization.This sewage blocking device has the disadvantages that (1) garbage barrier net is split blade type garbage barrier net, passes through
Connection fastener is connected to straight stake and cushion cap, is replacing garbage barrier net constantly, worker is needed to be unlocked on straight stake and cushion cap one by one in advance
Fastener needs to be installed piecewise when installing new garbage barrier net, and heavy workload is troublesome in poeration.(2) garbage barrier net is fixed specification ruler
It is very little, it cannot pointedly be adjusted for dirty object is blocked, bad adaptability.(3) connection fastener on cushion cap and straight stake is in seawater
In be easy corroded, need irregularly detect and replacement.
Summary of the invention
Object of the present invention is in view of the above-mentioned problems, provide a kind of structure is simple, improve block dirty effect nuclear power plant's water intaking it is bright
Canal sewage blocking device.
To achieve the goals above, the technical scheme is that
A kind of nuclear power plant's water intaking open channel sewage blocking device, including garbage barrier net, it is characterised in that: the sewage blocking device further includes several
Straight stake, several straight stakes are fixedly connected on water intaking open channel bottom along water intaking open channel width direction "-" type arrangement, straight stake bottom end, directly
Stake is fixedly connected with cushion cap；The garbage barrier net is located at straight stake and connects close to the side of water intaking open channel upstream, garbage barrier net upper end and main push-towing rope rope
It connects, main push-towing rope rope is connect with cushion cap and main push-towing rope rope both ends are fixedly connected on the shore protection or breakwater of water intaking open channel two sides；Garbage barrier net
Lower end is connect with auxiliary cable, and auxiliary cable connects anchor block by anchor chain；Cushion cap upper end is fixedly connected with lifting device, lifting device
It is connect with main push-towing rope rope.
Further, the lifting device includes steel bracket, pulley, electric winch；Steel bracket is fixedly connected on cushion cap
It holds, is fixedly connected with pulley on steel bracket, electric winch is fixedly connected on cushion cap upper end, and the twisted rope end on electric winch, which passes through, to be slided
It is connect after the race of wheel with main push-towing rope rope.
Further, the garbage barrier net includes level-one garbage barrier net and second level garbage barrier net, and the mesh aperture of second level garbage barrier net is small
In the mesh aperture of level-one garbage barrier net, second level garbage barrier net is connected in the mesh of level-one garbage barrier net；Level-one garbage barrier net upper/lower terminal
It is connect respectively with main push-towing rope rope, auxiliary cable.
Further, the level-one garbage barrier net, second level garbage barrier net mesh be square, the mesh side of level-one garbage barrier net
A length of 1000mm ~ 2000mm, the mesh side length of level-one garbage barrier net are 10mm ~ 50mm.
Further, the cable diameter is 30 ~ 50mm.
Further, the cushion cap is made by cylindrical body and by Reinforced Concrete Materials.
Further, the cushion cap outer edge and the outer peripheral distance of straight stake are not less than 0.5 times of straight stake outer diameter.
Further, the anchorage block is made of plain concrete material, and anchorage block is connected to auxiliary cable by anchor chain
Upper and arrangement spacing of the anchorage block on auxiliary cable is 10m ~ 20m.
Compared with prior art, the advantages and positive effects of the present invention are:
The invention has the following advantages that
1, the sewage blocking device in the present invention blocks dirty structure to be fixed, and the globality of structure is strong, and structure resists horizontal bending moment ability
By force, the horizontal loads of biggish wind, wave and water flow can be born, the safety coefficient of structure is higher；
2, the garbage barrier net in the present invention connect to be formed and blocks dirty plane with cushion cap, water intaking open channel two sides shore protection, realizes water intaking open channel
The function of tunneling boring interception marine growth and ocean foreign matter, it can be ensured that by marine growth and ocean foreign matter intercept intake outdoors,
Ensure the water intaking safety of nuclear power unit；
3, the present invention uses full slice system garbage barrier net, and the integral elevating of garbage barrier net is realized by electric winch, steel bracket and pulley
Motorized, it is simple to operate, human cost can be saved, convenient for the operation and maintenance work of garbage barrier net；
4, the design that the present invention is made of using garbage barrier net level-one garbage barrier net and second level garbage barrier net is only needed when the damage of second level mesh sheet
Replace second level mesh sheet, level-one mesh sheet can continue to use, in addition, can according to the size of different marine growths and ocean foreign matter,
The dimensions for pointedly adjusting second level mesh sheet, can save garbage barrier net web material expense and maintenance cost；It is simple and convenient.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is elevational schematic view of the invention；
Fig. 2 is the connection schematic diagram of level-one garbage barrier net and second level garbage barrier net；
Fig. 3 is floor map of the invention；
Fig. 4 is sectional schematic diagram of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
As shown in Figures 1 to 4, nuclear power plant's water intaking open channel sewage blocking device disclosed by the invention, it is bright to be installed on nuclear power plant's water intaking
It include level-one garbage barrier net 1, second level garbage barrier net 2, main push-towing rope rope 3, auxiliary cable 4, cushion cap 5, straight stake 6, anchorage block 7, electricity at canal mouth door
Dynamic winch 8, steel bracket 9, pulley 10, anchor chain 11.Level-one garbage barrier net 1 passes through cushion cap 5 and water intaking open channel two sides shore protection (breakwater)
On anchorage structures connect to be formed and block dirty plane, intercept marine growth and ocean foreign matter.
Level-one garbage barrier net 1 and second level garbage barrier net 2 are that nylon material is made, and second level garbage barrier net 2 is fixed on level-one garbage barrier net
On upper 1 mesh.Garbage barrier net mesh is square shape, and the mesh side length of level-one garbage barrier net 1 is 1000mm ~ 2000mm, second level
2 mesh side length of garbage barrier net is 10mm ~ 50mm, and the mesh of second level garbage barrier net 2 can be adjusted flexibly according to dirty demand is blocked.
Main push-towing rope rope 3 and auxiliary cable 4 are steel hawser, and at 1 top of level-one garbage barrier net, middle part connects main push-towing rope rope 3 with cushion cap
It connects, both ends are connect with water intaking open channel two sides shore protection or breakwater respectively, and auxiliary cable 4 is in 1 bottom of level-one garbage barrier net, main push-towing rope rope, pair
Cable diameter is 30 ~ 50mm, and specific size is calculated according to cable stress size and determined.
Straight stake 6 is arranged in the width direction of water intaking open channel in " "-" type ".Straight stake is at cylindric or rectangular cylindrical, straight stake
Bottom end is fixedly connected on water intaking open channel bottom, straight stake 6 specifically arrangement spacing can according to natural conditions in water intaking open channel (wind, wave,
Water flow, geology), the estimated plugging rate of garbage barrier net and cross ship and the factors such as require to calculate and determine.
Cushion cap 5 is made of Reinforced Concrete Materials, is fixedly connected on straight stake top end, to prevent garbage barrier net from rubbing with cushion cap 5
It wipes and accelerates garbage barrier net damage, be cylindrical structure by cap design of pile, 5 edge of cushion cap and straight 6 outer edge of stake distance are not less than 0.5 times
Straight stake stake diameter, straight 6 quantity of stake and stake diameter according to natural conditions (wind, wave, water flow, geological conditions) in water intaking open channel and block dirt
The calculating such as net plugging rate determine.
Anchorage block 7 is evenly arranged in water intaking open channel bottom along garbage barrier net axis, arranges spacing 10m ~ 20m, anchorage block 7
It is made of plain concrete material, each anchorage block 7 is equipped with anchor chain 11, passes through the pair of anchor chain 11 and 1 bottom of level-one garbage barrier net
Hawser 4 connects.
Electric winch 8 and steel bracket 9 are installed on 5 top of cushion cap, pulley 10 are arranged at the top of steel bracket 9, electric winch 8 is fixed
It is connected to 5 upper end of cushion cap, the twisted rope end on electric winch 8 is connect after the race of pulley 10 with main push-towing rope rope.By electronic
Winch 8, steel bracket 9 and pulley realize the integral elevating of garbage barrier net；Improve the lifting efficiency of garbage barrier net.
Claims (8)
- The open channel sewage blocking device 1. a kind of nuclear power plant fetches water, including garbage barrier net, it is characterised in that: the sewage blocking device further includes several A straight stake, several straight stakes are fixedly connected on water intaking open channel bottom along water intaking open channel width direction "-" type arrangement, straight stake bottom end, Straight stake is fixedly connected with cushion cap；The garbage barrier net is located at straight stake close to the side of water intaking open channel upstream, garbage barrier net upper end and main push-towing rope rope Connection, main push-towing rope rope is connect with cushion cap and main push-towing rope rope both ends are fixedly connected on the shore protection or breakwater of water intaking open channel two sides；Block dirt End off the net is connect with auxiliary cable, and auxiliary cable connects anchor block by anchor chain；Cushion cap upper end is fixedly connected with lifting device, lifting dress It sets and is connect with main push-towing rope rope.
- The open channel sewage blocking device 2. nuclear power plant as described in claim 1 fetches water, it is characterised in that: the lifting device includes steel branch Frame, pulley, electric winch；Steel bracket is fixedly connected on cushion cap upper end, and pulley is fixedly connected on steel bracket, and electric winch is fixed to be connected It connects and is connect after the race that the twisted rope end on cushion cap upper end, electric winch passes through pulley with main push-towing rope rope.
- The open channel sewage blocking device 3. nuclear power plant as described in claim 1 fetches water, it is characterised in that: the garbage barrier net includes that level-one is blocked Dirty net and second level garbage barrier net, the mesh aperture of second level garbage barrier net are less than the mesh aperture of level-one garbage barrier net, the connection of second level garbage barrier net In the mesh of level-one garbage barrier net；Level-one garbage barrier net upper/lower terminal is connect with main push-towing rope rope, auxiliary cable respectively.
- The open channel sewage blocking device 4. nuclear power plant as claimed in claim 3 fetches water, it is characterised in that: the level-one garbage barrier net, second level The mesh of garbage barrier net is square, and the mesh side length of level-one garbage barrier net is 1000mm ~ 2000mm, the mesh side of level-one garbage barrier net A length of 10mm ~ 50mm.
- The open channel sewage blocking device 5. nuclear power plant as described in claim 1 fetches water, it is characterised in that: the cable diameter is 30 ~ 50mm。
- The open channel sewage blocking device 6. nuclear power plant as described in claim 1 fetches water, it is characterised in that: the cushion cap be cylindrical body and by Reinforced Concrete Materials is made.
- The open channel sewage blocking device 7. nuclear power plant as described in claim 1 fetches water, it is characterised in that: the cushion cap outer edge and straight stake Outer peripheral distance is not less than 0.5 times of straight stake outer diameter.
- The open channel sewage blocking device 8. nuclear power plant as described in claim 1 fetches water, it is characterised in that: the anchorage block is by plain coagulation Soil material is made, anchorage block be connected on auxiliary cable by anchor chain and arrangement spacing of the anchorage block on auxiliary cable be 10m ~ 20m。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111669.0A CN109667246A (en) | 2019-02-12 | 2019-02-12 | A kind of nuclear power plant's water intaking open channel sewage blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111669.0A CN109667246A (en) | 2019-02-12 | 2019-02-12 | A kind of nuclear power plant's water intaking open channel sewage blocking device |
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| Publication Number | Publication Date |
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| CN109667246A true CN109667246A (en) | 2019-04-23 |
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| CN201910111669.0A Pending CN109667246A (en) | 2019-02-12 | 2019-02-12 | A kind of nuclear power plant's water intaking open channel sewage blocking device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469540A (en) * | 2007-12-28 | 2009-07-01 | 天津市海岸带工程有限公司 | Trash block system for nuclear plant water intaking channel |
| CN203684221U (en) * | 2014-01-17 | 2014-07-02 | 中交第四航务工程勘察设计院有限公司 | Screw pile anchorage structure for sheet-pile wharf |
| CN204080768U (en) * | 2014-09-05 | 2015-01-07 | 广东梅雁吉祥水电股份有限公司 | Dirty device is blocked in a kind of Reservoir of Hydropower Station |
| CN107090804A (en) * | 2017-05-26 | 2017-08-25 | 中国科学院、水利部成都山地灾害与环境研究所 | A kind of flexible net debris flow dam and its construction method |
| CN207760813U (en) * | 2017-12-25 | 2018-08-24 | 中交四航局港湾工程设计院有限公司 | A kind of flume garbage barrier net |
| CN210459125U (en) * | 2019-02-12 | 2020-05-05 | 中交第四航务工程勘察设计院有限公司 | Water intaking open channel trash device of nuclear power plant |
-
2019
- 2019-02-12 CN CN201910111669.0A patent/CN109667246A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469540A (en) * | 2007-12-28 | 2009-07-01 | 天津市海岸带工程有限公司 | Trash block system for nuclear plant water intaking channel |
| CN203684221U (en) * | 2014-01-17 | 2014-07-02 | 中交第四航务工程勘察设计院有限公司 | Screw pile anchorage structure for sheet-pile wharf |
| CN204080768U (en) * | 2014-09-05 | 2015-01-07 | 广东梅雁吉祥水电股份有限公司 | Dirty device is blocked in a kind of Reservoir of Hydropower Station |
| CN107090804A (en) * | 2017-05-26 | 2017-08-25 | 中国科学院、水利部成都山地灾害与环境研究所 | A kind of flexible net debris flow dam and its construction method |
| CN207760813U (en) * | 2017-12-25 | 2018-08-24 | 中交四航局港湾工程设计院有限公司 | A kind of flume garbage barrier net |
| CN210459125U (en) * | 2019-02-12 | 2020-05-05 | 中交第四航务工程勘察设计院有限公司 | Water intaking open channel trash device of nuclear power plant |
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