CN2057929U - Automatic siphon scouring canal - Google Patents
Automatic siphon scouring canal Download PDFInfo
- Publication number
- CN2057929U CN2057929U CN 89213181 CN89213181U CN2057929U CN 2057929 U CN2057929 U CN 2057929U CN 89213181 CN89213181 CN 89213181 CN 89213181 U CN89213181 U CN 89213181U CN 2057929 U CN2057929 U CN 2057929U
- Authority
- CN
- China
- Prior art keywords
- siphon
- scouring
- sand
- canal
- sand flushing
- 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.)
- Withdrawn
Links
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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model relates to a sand flushing apparatus of the settling basin used for hydroelectric hydraulic engineering, in particular to an automatic siphon scouring canal. The utility model is composed of a block sand weir, a gallery for sediment transport, and a siphon pipe. The ascending segment of the siphon pipe is also provided with a disc type air vent pipe and an air limit valve. Compared with the existing plain gate sand flushing apparatus, the automatic siphon scouring canal has the advantages of simple structure, lower cost, strong sand flushing force, rapid cutoff, and easy installation and maintenance, without the operation and management of the special person, and the automatic siphon scouring canal can carry out the automatically sand flushing without the power supply motive power and can not leak water. The utility model can be free from the limit of terrain generally used for the new building of the settling basin of hydroelectric power station or the hydraulic engineering, and the automatic siphon scouring canal can rebuild the original plain gate sand flushing apparatus.
Description
The utility model relates to the sand surfing device of a kind of water power, hydraulic engineering sand trap, the automatic scouring sluice of a kind of siphon.
Water power and hydraulic engineering water need the sediment deposition in the water in future, and the silt that is deposited in the sand trap need constantly be transported again.Generally adopt a kind of bulkhgead gate sand surfing device to finish this work at present, it mainly by gallery for sediment transport, manually or electric gate valve, sand surfing groove, lock room form.This sand surfing apparatus structure complexity, the cost height; The installation and maintenance difficulty needs special messenger's operational administrative; The sand surfing head is limited by landform, and impulse force is less, improves head and open sand surfing duct work amount big; This flood tide gate rubber is perishable, often causes and leaks.
The utility model purpose is a kind of novel sand surfing device of design, to overcome the above-mentioned shortcoming of bulkhgead gate sand surfing device, make it to have simple in structure, cost is low, do not need special messenger's operational administrative and can carry out sand surfing automatically, compliance is strong, not limited by landform, not power consumption power, impulse force is strong, water-tight, installation and maintenance such as all are easier at characteristics.
The purpose of this utility model realizes that by the automatic scouring sluice of a kind of siphon this sand surfing device is made of sediment trapping bank, gallery for sediment transport, siphon piping.Gallery for sediment transport 1 is located at sand trap bottom, and head end has big aperture, is as the criterion can put into 1/5 sand surfing flow approximately; Gallery cover plate upper edge flows to and has the aperture, and flow is increased gradually along journey, finally increases by 4/5 sand surfing flow.Siphon piping is made with concrete pipe or steel pipe, be divided into ascent stage 2, hump section 3, descending branch 4, outlet section 5 four parts, it is characterized in that: (1) ascent stage is provided with a disc type air vent 8, siphon cutout and aqueous vapor ginseng and the huge noise that produces can overcome cutout time the when guaranteeing in pond design water level 10; Be provided with a limit air valve 9 simultaneously in the air vent, as long as, just the sand trap middle water level can be reduced to desired value, so that overhaul with valve part or Close All; (2) hump section mouthpiece bottom 6 elevations equal the design water level 10 the pond in, and top 7 elevations equal the highest design water level 11 in the pond, or are positioned at water level 10 to 11 5/4 place highly and also can.So, when design water level 10, the siphon cutout, Chi Shui can not sew yet; And during the highest design water level 11 of Chi Shuida, form siphon by current gas enclosure ability, and the sand trap bottom sediment is sucked gallery for sediment transport, emit through siphon piping.(3) 5 one-tenth arcuations of outlet section make water logging not have the part aperture, and as steam vent, the inner air tube when beginning to form with the discharge siphon also avoids current to take off wall to the aperture water surface 14 from outlet top 10cm.
Accompanying drawing is the utility model schematic diagram
The 1-gallery for sediment transport
The 2-syphon ascent stage
3-syphon hump section
4-syphon descending branch
5-syphon outlet section
6-mouthpiece bottom
7-mouthpiece top
8-disc type air vent
9-limits air valve
10-sand trap design water level
The highest design water level of 11-sand trap
12-sediment trapping bank
13-desilting pool wall
The 14-outlet section aperture water surface
Accompanying drawing also is one of the utility model embodiment.Now the siphon scouring sluice structure and the course of work are further described in conjunction with this figure.(height dimension is an altitude value in this example) steel for pipe pipe is made, caliber R=70cm, and sand trap normal design water level 10 is 948.95cm, the highest design water level 11 is 949.66m, hump discrepancy in elevation 4m at the bottom of the pond.Flood season, the sand trap water level surpasses normal design water level 10, forms siphon in the pipeline.After the water of carrying a large amount of silts secretly entered sand trap, most of silt was stagnated in the entrance of gallery for sediment transport 1 by sediment trapping bank retaining, and fraction continues along the gallery sedimentation.The silt of these sedimentations is all sucked syphon by siphon power from the opening on gallery inlet and the gallery cover plate, discharges and washes away via ascent stage 2, hump section 3, descending branch 4, outlet section 5.When coming the water yield to reduce, when the pool inner water potential drop was low to moderate the normal design water level, air vent was ventilated, and siphonage stops automatically.When needs cleaning sand trap or maintenance scouring sluice, operation limit air valve 9 is partly ventilated siphon, and the pond middle water level just can be reduced to desired value, with 9 Close Alls, then the pond middle water level can be reduced at the bottom of the pond.
The siphon scouring sluice that the utility model provides is simple in structure, cost is low, does not need special messenger's operational administrative, does not need power supply power can automatically carry out sand surfing. And sand surfing flood discharge two combinations, sand surfing power is strong, and it is soon water-tight to stop; Because siphon pipe can be crossed over the highland, thereby not limited by landform, need not open the sand surfing groove, reduce earth work; Installation and maintenance all are easier to.
Preferred embodiment of the utility model is in the power station or the newly-built siphon scouring sluice of hydraulic engineering settling pit or original bulkhgead gate sand surfing device transformed by the siphon scouring sluice.
Claims (4)
1, a kind of sand surfing device that washes sand trap silt is made up of gallery for serdiment transport, scouring sluice, it is characterized in that scouring sluice is a kind of siphon piping.
2, sand surfing device according to claim 1, its feature are that also the siphonal ascent stage is provided with disc type air vent and limit air valve.
3, sand surfing device according to claim 1, its feature are that also hump section mouthpiece bottom 6 elevations equal design water level 10 pond in, and top 7 elevations equal in the pond the highest design water level 11 or are positioned at water level 10 to 11 5/4 place highly.
4, sand surfing device according to claim 1, its feature also be syphon at the outlet section camber so that water logging there is not the part aperture, 10 centimeters apart from the outlet tops of the aperture waters surface 14 form a steam vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89213181 CN2057929U (en) | 1989-09-06 | 1989-09-06 | Automatic siphon scouring canal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89213181 CN2057929U (en) | 1989-09-06 | 1989-09-06 | Automatic siphon scouring canal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2057929U true CN2057929U (en) | 1990-06-06 |
Family
ID=4869225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89213181 Withdrawn CN2057929U (en) | 1989-09-06 | 1989-09-06 | Automatic siphon scouring canal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2057929U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882838A (en) * | 2014-02-27 | 2014-06-25 | 黄河水利委员会黄河水利科学研究院 | Sediment releasing method for water intake of low-head river channel pivotal power station |
| CN104727267A (en) * | 2015-01-28 | 2015-06-24 | 四川大学 | Compound shingle trap capable of achieving longitudinal spiral flow sand retaining and discharging |
| CN105369769A (en) * | 2015-12-09 | 2016-03-02 | 西华大学 | Sediment removal system and method for preventing sediment accumulation at canal bed of canal and |
| CN108149644A (en) * | 2018-01-31 | 2018-06-12 | 长沙理工大学 | Hydraulic automatism subtracts silt system and construction method before a kind of overflow dam |
-
1989
- 1989-09-06 CN CN 89213181 patent/CN2057929U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103882838A (en) * | 2014-02-27 | 2014-06-25 | 黄河水利委员会黄河水利科学研究院 | Sediment releasing method for water intake of low-head river channel pivotal power station |
| CN103882838B (en) * | 2014-02-27 | 2015-12-02 | 黄河水利委员会黄河水利科学研究院 | A kind of sand discharge method of low water head river channel hinge powerplant intakes |
| CN104727267A (en) * | 2015-01-28 | 2015-06-24 | 四川大学 | Compound shingle trap capable of achieving longitudinal spiral flow sand retaining and discharging |
| CN105369769A (en) * | 2015-12-09 | 2016-03-02 | 西华大学 | Sediment removal system and method for preventing sediment accumulation at canal bed of canal and |
| CN108149644A (en) * | 2018-01-31 | 2018-06-12 | 长沙理工大学 | Hydraulic automatism subtracts silt system and construction method before a kind of overflow dam |
| CN108149644B (en) * | 2018-01-31 | 2023-05-09 | 长沙理工大学 | Hydraulic automatic silt-reducing system in front of rolling dam and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |