CN200964584Y - Defoaming antifogging pressure type dissipator overflow weir - Google Patents

Defoaming antifogging pressure type dissipator overflow weir Download PDF

Info

Publication number
CN200964584Y
CN200964584Y CN 200620066569 CN200620066569U CN200964584Y CN 200964584 Y CN200964584 Y CN 200964584Y CN 200620066569 CN200620066569 CN 200620066569 CN 200620066569 U CN200620066569 U CN 200620066569U CN 200964584 Y CN200964584 Y CN 200964584Y
Authority
CN
China
Prior art keywords
box culvert
pressure type
energy
overflow weir
weir
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
Application number
CN 200620066569
Other languages
Chinese (zh)
Inventor
谢明
余平
李瑞生
李维文
廖泽球
黄艳君
吴海波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Energy Construction Group Guangdong Electric Power Design Institute Co Ltd
Original Assignee
Guangdong Electric Power Design Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Electric Power Design Institute filed Critical Guangdong Electric Power Design Institute
Priority to CN 200620066569 priority Critical patent/CN200964584Y/en
Application granted granted Critical
Publication of CN200964584Y publication Critical patent/CN200964584Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The utility model discloses a defoaming and anti-fog type pressure energy dissipater down-flow weir, wherein a practical weir of a curved shape, along top of which, a cover is arranged to form an inlet stream direction siphon culvert, at lower reaches of which, a pressure-typed energy dissipater culvert provided with an energy-dissipating box and an energy-dissipating basin which fulfill an auxiliary obturation at the top and provided with an increasing culvert which has a submerged outlet at bottom part is connected with a blocked end and at the top which an auxiliary flow passage is arranged. The utility model is provided with a capacity of double flow capacity which is characterized in a pressure-typed energy dissipater by a flow through narrow gap, disposing of a hazard caused by a floating salt mist corrosion and a visual pollution caused by yellowish foams and solving the difficult problem of interrupting and influencing reputation of such big-scaled power plants like a nuclear power plant for a long time, which is of an obvious social benefit and an obvious economic benefit.

Description

The antifog type pressure type of froth breaking energy dissipater overflow weir
Technical field
The utility model patent belongs to Hydraulic and Hydro-Power Engineering hydraulics technical field, is specifically related to a kind of antifog type pressure type of froth breaking energy dissipater overflow weir that is used for preventing the salt fog generation in super-huge steam power station and nuclear power station and similar large-scale drainage works, open type draining siphonic water-collecting well and the outfall and eliminates the foam generation.
Background technology
In large thermal power plant and nuclear power station, draining siphonic water-collecting well and overflow weir are set usually so that form in the condenser water box of unit and keep certain siphon height, make the electricity consumption (lift) of circulating water pump consume and remain on a certain comparatively reasonable levels.Yet current common siphonic water-collecting well overflow weir is in operation and has following problem:
1, after water freely falls in the mode of surface current from the siphonic water-collecting well overflow weir crest of open type, form a large amount of little water droplets and distributed mode salt fog, near the salt fog plant area that racks, the steel work of heavy corrosion factory building, the wire gauze of safeguard system and near open-air electric fixtures cause very big economic loss;
2, if the height of water before and after the weir flow is bigger, strong head-on collision and the aeration of water body behind the weir, make current present milky with producing a large amount of bubbles, will adsorb the residual body of marine growth when bubble disengages in the downstream and form little yellow foam, accumulate in the water surface and go downstream and cause visual pollution.
Summary of the invention
The purpose of the utility model patent is at the problems referred to above, the antifog type pressure type of a kind of froth breaking energy dissipater is provided overflow weir, on the basis of satisfying the sluicing function of overflow weir own, can prevent the generation of corrosivity salt fog effectively and reduce even eliminate the foam that causes visual pollution.
For achieving the above object, the utility model patented technology scheme is as follows: the antifog type pressure type of froth breaking energy dissipater overflow weir, one shaped form practical weir is arranged, add a cover formation import water conservancy diversion siphon box culvert along the top of shaped form practical weir line, import water conservancy diversion siphon box culvert downstream connects terminal by the pressure type energy dissipating box culvert of shutoff, and auxiliary flow and pressure type energy dissipating box culvert top are set at import water conservancy diversion siphon box culvert top the auxiliary airtight power that disappears case and absorption basin is set, pressure type energy dissipating box culvert bottom then is provided with the covered gradually expanded form box culvert of outlet.
On the above-mentioned pressure type energy dissipating box culvert, below be respectively equipped with out the stream narrow slit, to form airtight pressure type energy dissipater.
Above-mentioned gradually expanded form box culvert is located at pressure box culvert bottom narrow slit and goes out Liu Chu, and gradually expanded form box culvert outlet both sides are provided with can regulate the stoplog that narrow slit goes out stream and water conservancy diversion siphon inlet flow rate.
Above-mentioned auxiliary flow is provided with the energy dissipating grid, is provided with the froth breaking pore on auxiliary flow and the dividing plate between the power case of disappearing.
The power bank that disappears is set on the power that the disappears case runner at pressure type energy dissipating box culvert top.
Above-mentioned absorption basin exit is provided with blocks bubble narrow slit, the current pressing plate and the whirlpool grid that disappears.
The utility model has dual conveyance capacity and goes out flowing pressure formula energy dissipater based on narrow slit owing to adopt said structure, and its sprue adopts leads siphon inlet mode and outside air isolation, makes it not aeration; Auxilliary runner then adopts effective measures such as cascading fall of water, submerge discharging flow, thereby the discharge per unit width of the water body that reduces to drop and change the energy dissipating mode, the scope of freedom flowed down let out energy dissipating and change pressure type narrow slit energy dissipater into, eliminated the harm of flying away salt air corrosion, and the visual pollution that little yellow foam caused, solve long-term puzzlement and influenced this difficult problem of nuclear power station one class large power plant reputation, had obvious social and economic benefit.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the I-I cross-sectional view of Fig. 1;
Fig. 3 is the II-II cross-sectional view of Fig. 1;
Fig. 4 is the structural representation that goes out to flow narrow slit described in the utility model, and wherein: Fig. 4 a is that lower floor goes out to flow the narrow slit structural representation; Fig. 4 b is that the upper strata goes out to flow the narrow slit structural representation.
Now the utility model is described in further detail in conjunction with the accompanying drawings and embodiments:
The specific embodiment
As shown in Figures 1 to 4, the utility model has a shaped form practical weir 1, along the weir line of shaped form practical weir, adds a cover formation import water conservancy diversion siphon box culvert 2 at the top, import water conservancy diversion siphon box culvert 2 tops are provided with auxiliary flow 4, and twice energy dissipating grid 41 is set in the auxiliary flow 4; Import water conservancy diversion siphon box culvert 2 downstreams connect end by the pressure type energy dissipating box culvert 3 of shutoff, and the above and below of pressure type energy dissipating box culvert 3 is respectively equipped with out stream narrow slit 31, and the bottom narrow slit goes out the stream place and connects the covered gradually expanded form box culvert 7 of outlet; Leave stoplog groove 71 in gradually expanded form box culvert 7 outlet two sides, can discharge stoplog to regulate the weir face water level of overflow rate of discharge and overflow weir.Be provided with the auxiliary airtight power that disappears case 5 and absorption basin 6 at the top of pressure type energy dissipating box culvert 3, twice energy dissipating grid 41 in the auxiliary flow 4 and the dividing plate that disappears between power case 5 runners are provided with froth breaking pore 42; The power that disappears case 5 runners at pressure type energy dissipating box culvert 3 tops are provided with the power bank 32 that disappears, and absorption basin 6 exits are provided with and block the bubble narrow slit, whirlpool grid 61 and current pressing plate 62 disappear.
The utlity model has dual overcurrent and siphon water conservancy diversion and submerge discharging flow, pressure type energy dissipater's design feature: on the basis of existing overflow weir, add a cover at the top along original shaped form practical weir weir line, siphon import box culvert is led in formation, adopts that siphon becomes a mandarin, the culvert hole of narrow slit energy dissipating and submerged goes out stream; Utilize the underwater turning of current, head-on collision, contraction and diffusion, make its form than the scope of freedom flow down fall, the better pressure type energy dissipater of hydraulic jump formula effect of energy dissipation.Rising along with (tide) water level behind the weir, the inbound traffics of leading in the siphon box culvert can reduce to some extent, the flow that is reduced will be from overflow in the auxiliary flow of leading the setting of siphon box culvert top, under twice energy dissipating grid, let out the elimination portion of energy, and be provided with the auxiliary airtight power that disappears case and absorption basin at the top of downstream pressure formula energy dissipating box culvert, on the dividing plate between the runner of twice energy dissipating grid and the auxiliary power case that disappears, offer the froth breaking pore, the current collision of letting out under a small amount of bubble that the drop of the power that disappears case internal cause produces and the foam of accumulation and the froth breaking pore thus and band foam bubble is crumbled and fall in advance; Disappear the whirlpool grid and the current pressing plate in absorption basin exit also play the purpose that band foam bubble is crumbled and fall.
Sprue of the present utility model adopts leads siphon inlet mode and outside air isolation, makes it not aeration; Auxilliary runner adopts cascading fall of water, submerge discharging flow, effective measures such as the Li Kan and the whirlpool grid that disappears disappear, with the discharge per unit width of the water body that reduces to drop with change the energy dissipating mode, the scope of freedom flowed down let out energy dissipating and change pressure type narrow slit energy dissipater into, eliminated the harm of flying away salt air corrosion, and the visual pollution that little yellow foam caused.

Claims (6)

1, the antifog type pressure type of froth breaking energy dissipater overflow weir, one shaped form practical weir is arranged, it is characterized in that: add a cover along the top of shaped form practical weir line and form import water conservancy diversion siphon box culvert, import water conservancy diversion siphon box culvert downstream connects terminal by the pressure type energy dissipating box culvert of shutoff, and auxiliary flow and pressure type energy dissipating box culvert top are set at import water conservancy diversion siphon box culvert top the auxiliary airtight power that disappears case and absorption basin is set, pressure type energy dissipating box culvert bottom then is provided with the covered gradually expanded form box culvert of outlet.
2, the antifog type pressure type of froth breaking according to claim 1 energy dissipater overflow weir is characterized in that: on the described pressure type energy dissipating box culvert, below be respectively equipped with out the stream narrow slit, to form airtight pressure type energy dissipater.
3, the antifog type pressure type of froth breaking according to claim 2 energy dissipater overflow weir, it is characterized in that: described gradually expanded form box culvert is located at pressure box culvert bottom narrow slit and goes out Liu Chu, and gradually expanded form box culvert outlet both sides are provided with can regulate the stoplog that narrow slit goes out stream and water conservancy diversion siphon inlet flow rate.
4, the antifog type pressure type of froth breaking according to claim 1 energy dissipater overflow weir, it is characterized in that: described auxiliary flow is provided with the energy dissipating grid, is provided with the froth breaking pore on auxiliary flow and the dividing plate between the power case of disappearing.
5, the antifog type pressure type of froth breaking according to claim 1 energy dissipater overflow weir is characterized in that: the power bank that disappears is set on the power that the disappears case runner at pressure type energy dissipating box culvert top.
6, the antifog type pressure type of froth breaking according to claim 1 energy dissipater overflow weir is characterized in that: described absorption basin exit is provided with blocks bubble narrow slit, the current pressing plate and the whirlpool grid that disappears.
CN 200620066569 2006-10-25 2006-10-25 Defoaming antifogging pressure type dissipator overflow weir Expired - Lifetime CN200964584Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620066569 CN200964584Y (en) 2006-10-25 2006-10-25 Defoaming antifogging pressure type dissipator overflow weir

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620066569 CN200964584Y (en) 2006-10-25 2006-10-25 Defoaming antifogging pressure type dissipator overflow weir

Publications (1)

Publication Number Publication Date
CN200964584Y true CN200964584Y (en) 2007-10-24

Family

ID=38868596

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620066569 Expired - Lifetime CN200964584Y (en) 2006-10-25 2006-10-25 Defoaming antifogging pressure type dissipator overflow weir

Country Status (1)

Country Link
CN (1) CN200964584Y (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101603305B (en) * 2009-07-02 2011-08-03 中国水电顾问集团华东勘测设计研究院 Side overflow hole structure with water-stop plate and construction method thereof
CN102966080A (en) * 2012-11-09 2013-03-13 广东省水利水电科学研究院 Novel salt spray defoaming facility for thermal power plant and nuclear power plant
CN102966081A (en) * 2012-11-13 2013-03-13 中国长江三峡集团公司 Biological environment-friendly expansion-drop combination energy dissipater
CN103541337A (en) * 2013-10-28 2014-01-29 广东省水利水电科学研究院 Bubble inhibition device for power plant open drainage channels
CN103938593A (en) * 2014-05-14 2014-07-23 四川大学 Underflow energy dissipater with pressurized pipeline used for outflow
CN104294879A (en) * 2014-10-29 2015-01-21 中国能源建设集团广东省电力设计研究院 Circulating water system and siphon well thereof
CN105178204A (en) * 2015-08-25 2015-12-23 中国能源建设集团广东省电力设计研究院有限公司 Drainage box culvert structure
CN105672216A (en) * 2016-04-01 2016-06-15 山东省水利科学研究院 Protection device of overflowing bucket
CN105821815A (en) * 2016-04-01 2016-08-03 山东省水利科学研究院 Protective device for overflowing bucket
CN105836832A (en) * 2016-03-29 2016-08-10 国核电力规划设计研究院 Coastal power plant circulating water drainage and defoaming device
CN106337401A (en) * 2016-09-22 2017-01-18 中国水利水电科学研究院 Flow-guide type grading energy-dissipation defoaming siphonic water-collecting well in front of weir flow and method
CN106400753A (en) * 2016-09-22 2017-02-15 中国水利水电科学研究院 Key weir flow-type classified energy dissipation defoaming siphon well and method
CN108867581A (en) * 2018-05-24 2018-11-23 四川大学 The method for reducing flood discharge fog precipitation by cripling air bag
WO2020147165A1 (en) * 2019-01-17 2020-07-23 广东省水利水电科学研究院 Diverting and defoaming device using bend pipe and applied to high water-level water supply construction

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101603305B (en) * 2009-07-02 2011-08-03 中国水电顾问集团华东勘测设计研究院 Side overflow hole structure with water-stop plate and construction method thereof
CN102966080A (en) * 2012-11-09 2013-03-13 广东省水利水电科学研究院 Novel salt spray defoaming facility for thermal power plant and nuclear power plant
CN102966081A (en) * 2012-11-13 2013-03-13 中国长江三峡集团公司 Biological environment-friendly expansion-drop combination energy dissipater
CN102966081B (en) * 2012-11-13 2014-12-17 中国长江三峡集团公司 Biological environment-friendly expansion-drop combination energy dissipater
CN103541337A (en) * 2013-10-28 2014-01-29 广东省水利水电科学研究院 Bubble inhibition device for power plant open drainage channels
CN103541337B (en) * 2013-10-28 2015-07-29 广东省水利水电科学研究院 A kind of for power plant's surface water channel press down bulb apparatus
CN103938593A (en) * 2014-05-14 2014-07-23 四川大学 Underflow energy dissipater with pressurized pipeline used for outflow
CN104294879A (en) * 2014-10-29 2015-01-21 中国能源建设集团广东省电力设计研究院 Circulating water system and siphon well thereof
CN105178204A (en) * 2015-08-25 2015-12-23 中国能源建设集团广东省电力设计研究院有限公司 Drainage box culvert structure
CN105836832A (en) * 2016-03-29 2016-08-10 国核电力规划设计研究院 Coastal power plant circulating water drainage and defoaming device
CN105836832B (en) * 2016-03-29 2018-09-14 国核电力规划设计研究院 A kind of draining defoaming device of Coastal Power Plant recirculated water
CN105672216A (en) * 2016-04-01 2016-06-15 山东省水利科学研究院 Protection device of overflowing bucket
CN105821815A (en) * 2016-04-01 2016-08-03 山东省水利科学研究院 Protective device for overflowing bucket
CN105821815B (en) * 2016-04-01 2017-07-14 山东省水利科学研究院 A kind of protector for excessively stream bucket lip
CN106337401A (en) * 2016-09-22 2017-01-18 中国水利水电科学研究院 Flow-guide type grading energy-dissipation defoaming siphonic water-collecting well in front of weir flow and method
CN106400753A (en) * 2016-09-22 2017-02-15 中国水利水电科学研究院 Key weir flow-type classified energy dissipation defoaming siphon well and method
CN108867581A (en) * 2018-05-24 2018-11-23 四川大学 The method for reducing flood discharge fog precipitation by cripling air bag
WO2020147165A1 (en) * 2019-01-17 2020-07-23 广东省水利水电科学研究院 Diverting and defoaming device using bend pipe and applied to high water-level water supply construction

Similar Documents

Publication Publication Date Title
CN200964584Y (en) Defoaming antifogging pressure type dissipator overflow weir
CN104234174B (en) A kind of combined type froth breaking siphonic water-collecting well and method
CN102966080B (en) Novel salt spray defoaming facility for thermal power plant and nuclear power plant
CN101538840B (en) Trajectory jet type energy dissipater in absorption basin
CN101182707A (en) Flood discharging and energy dissipating device
CN105863021A (en) Fragmentation closure regulation and storage discharging system
Ouamane Nine years of study of the piano key weir in the university laboratory of Biskra ‘lessons and reflections’
CN204326026U (en) A kind of multi-stage telescopic steel dam
CN201883416U (en) Half air-cushion closed type siphon well
CN210031721U (en) Water flow reverse rotation energy dissipation device
CN106013009A (en) Multi-reverse-slope type stilling pool
CN203603126U (en) Double-layer dispersion energy dissipation high-and-low sill stilling pool
CN207739232U (en) A kind of Y type flaring gate piers with stilling pond combined energy dissipation
CN203429607U (en) Combination high-low threshold stilling pool with flow deflecting structure
CN208088250U (en) A kind of energy dissipating construction suitable for diffusion type discharge outlet
CN109778800A (en) Bank type stilling pond is fallen in gradual change
CN204352600U (en) Butterfly settling vessel
CN104524821A (en) Butterfly-type precipitator
CN109487763A (en) A kind of energy dissipation by hydraulic jump structure extending to stilling pond suitable for flaring gate pier
CN101538841B (en) Differential trajectory jet energy dissipater in absorption basin
CN113109528B (en) Engineering measure for reducing supersaturation of dissolved gas in water under dam
CN212772251U (en) Multiple overflow layering water intaking hydraulic engineering
CN202969349U (en) Novel anti-salt mist and bubble eliminating facility for thermal power plants and nuclear power plants
CN211898237U (en) Energy dissipation spillway
CN206971181U (en) A kind of multichannel bank stiling basin of dispersible energy dissipating

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No.

Patentee after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute

Patentee after: Li Ruisheng

Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No.

Patentee before: Guangdong Electric Power Design Institute of CEEC

Patentee before: Li Ruisheng

CP03 Change of name, title or address

Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No.

Patentee after: Guangdong Electric Power Design Institute of CEEC

Patentee after: Li Ruisheng

Address before: 510600 No. 846 Dongfeng East Road, Guangdong, Guangzhou

Patentee before: Guangdong Electric Power Design Institute

Patentee before: Li Ruisheng

CX01 Expiry of patent term

Granted publication date: 20071024

EXPY Termination of patent right or utility model