CN204174573U - A kind of easy dash water draw-off - Google Patents
A kind of easy dash water draw-off Download PDFInfo
- Publication number
- CN204174573U CN204174573U CN201420462942.7U CN201420462942U CN204174573U CN 204174573 U CN204174573 U CN 204174573U CN 201420462942 U CN201420462942 U CN 201420462942U CN 204174573 U CN204174573 U CN 204174573U
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- bank
- dash
- easy
- sluicing
- utility
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Abstract
The utility model discloses a kind of easy dash water draw-off, comprise overflow weir, tapping pipe, choose bank, top cover, in order to regulate at the bottom of the passing hole of sluicing operating mode, variation zone, upstream canal, and energy dissipation tank, energy dissipating bank and abutment wall that downstream is connected, described air vent is positioned at weir crest, described bank of choosing is positioned at below weir crest, and described energy dissipation tank and energy dissipating bank are positioned at below abutment wall.The utility model has simple to operation, can save a large amount of expenses and the feature of time, be applicable to applying.
Description
Technical field
The utility model belongs to hydraulic engineering technical field, relates to a kind of easy dash water draw-off.
Background technology
In Practical Project and when hydraulic model test is done in laboratory, important problem is exactly dash in channel or gool and lets out water problem.Traditional way adopts overfall dam dash, and control to sluice with gate above overfall dam.Gate is utilized to control also to have to select opening/closing system, on the one hand, the increase of engineering Accessory Members can increase engineering cost, on the other hand, gate is steel work, also there is the problem of corrosion and reliability decline, cause unnecessary loss to object of construction production or experiment in running, meanwhile, a large amount of Time and place is wasted.
Utility model content
The purpose of this utility model is the defect overcoming the existence of above-mentioned technology, a kind of easy dash water draw-off is provided, a kind of easy dash, water draw-off, dash, sluicing are integrated, not only can overcome traditional dash, sluice the shortcoming be separated, and not need extra attached opening/closing system, directly can current be let out to downstream, simple, convenient, be more suitable for the requirement in engineering reality and laboratory.Its concrete technical scheme is:
A kind of easy dash water draw-off, comprise doublely can do dash and sluicing effect overflow weir, tapping pipe, choose bank, top cover, in order to regulate the passing hole of sluicing operating mode, chain of command to control at the bottom of variation zone when sluicing, upstream canal, and energy dissipation tank, energy dissipating bank and abutment wall that downstream is connected, described air vent is positioned at weir crest, described bank of choosing is positioned at below weir crest, and described energy dissipation tank and energy dissipating bank are positioned at below abutment wall.
Compared with prior art, the beneficial effects of the utility model are:
The utility model solves the building dash in the process of the test of Practical Project Neutralizing test room and lets out water problem; Dash and sluicing are integrated, does not adopt the accessory structures such as gate to let out under controlling current, utilize siphon principle to realize tapping pipe automatic drainage; When needing to stop earial drainage process, only need gas valve to open, to destroy vacuum state, simple to operation, a large amount of expenses and time can be saved.
Accompanying drawing explanation
Fig. 1 is the structural representation of easy dash water draw-off.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in more detail.
See Fig. 1, a kind of easy dash water draw-off, comprise doublely can do dash and sluicing effect overflow weir, tapping pipe, choose bank, top cover, in order to regulate the passing hole of sluicing operating mode, chain of command to control at the bottom of variation zone when sluicing, upstream canal, and energy dissipation tank, energy dissipating bank and abutment wall that downstream is connected, described air vent is positioned at weir crest, described bank of choosing is positioned at below weir crest, and described energy dissipation tank and energy dissipating bank are positioned at below abutment wall.
Overflow weir crest level must carry out according to actual sluicing operating mode the variation zone selected, chain of command decides lower sluicing head, so also will carry out in light of the circumstances determining, choose bank and mainly current are slightly chosen upwards tapping pipe, cut off entering of air, choosing angle should not be too large.
When the water table ratio in Upstream Canal is lower, when not needing sluicing situation, overfall dam can play the effect of dash; Overflow weir crest level then needs to determine (as flood control, irrigation etc.) according to the concrete condition of engineering; By the valve closing of air vent, water level is constantly raised subsequently, and when exceeding overflow dam crest, current begin through tapping pipe and sluice to downstream; Tapping pipe downstream section arranges one and chooses bank, can choose to pipe top by lower sluicing stream; When current are by choosing bank, upwards micro-ly to provoke, this can the air in resistance downstream enter in tapping pipe; Along with the continuation of sluicing process, air original in tapping pipe is constantly taken away by current, and there is no air and enter in pipe, forms vacuum in tapping pipe; As long as the vacuum in pipe is not destroyed, whole sluicing process will go on always, until when water level is lower than chain of command, earial drainage process stops; An earial drainage variation zone is formed between overflow weir weir crest and chain of command; If in earial drainage process, do not need water level to stop lower than earial drainage process during chain of command, but stop in the middle of earial drainage variation zone, only need the valve open of air vent; During air vent valve open, owing to being mixed with air in tapping pipe, the vacuum state that tapping pipe is existed receives destruction, thus earial drainage process is stopped;
Top cover above tapping pipe, can doublely work bridge or access bridge use; The current let out from tapping pipe, directly can connect energy dissipation tank below and carry out energy dissipating or adopt flip trajectory bucket.Wherein, the elevation of weir crest of overflow weir must be determined accurately according to concrete condition.
Dash and sluicing integrate by the utility model, simple to operation, only need regulate aeration situation in system, just can control sluicing process, reach service requirement, time saving and energy saving.
The above; be only the utility model preferably detailed description of the invention; protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses, the simple change of the technical scheme that can obtain apparently or equivalence are replaced and are all fallen in protection domain of the present utility model.
Claims (1)
1. an easy dash water draw-off, it is characterized in that, comprise overflow weir, tapping pipe, choose bank, top cover, in order to regulate at the bottom of the passing hole of sluicing operating mode, variation zone, upstream canal, and energy dissipation tank, energy dissipating bank and abutment wall that downstream is connected, described air vent is positioned at weir crest, described bank of choosing is positioned at below weir crest, and described energy dissipation tank and energy dissipating bank are positioned at below abutment wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420462942.7U CN204174573U (en) | 2014-08-13 | 2014-08-13 | A kind of easy dash water draw-off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420462942.7U CN204174573U (en) | 2014-08-13 | 2014-08-13 | A kind of easy dash water draw-off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204174573U true CN204174573U (en) | 2015-02-25 |
Family
ID=52563392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420462942.7U Expired - Fee Related CN204174573U (en) | 2014-08-13 | 2014-08-13 | A kind of easy dash water draw-off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204174573U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612059A (en) * | 2018-04-10 | 2018-10-02 | 浙江水利水电学院 | Efficient energy dissipating and the embedded overfall dam structure for not generating supersaturated water body |
| CN109440720A (en) * | 2018-11-14 | 2019-03-08 | 天津大学 | A kind of aqueduct is across reservoir point water intaking structure and water intaking, sluicing, dividing method for water |
-
2014
- 2014-08-13 CN CN201420462942.7U patent/CN204174573U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612059A (en) * | 2018-04-10 | 2018-10-02 | 浙江水利水电学院 | Efficient energy dissipating and the embedded overfall dam structure for not generating supersaturated water body |
| CN108612059B (en) * | 2018-04-10 | 2021-06-29 | 浙江水利水电学院 | Embedded overflow dam structure with high-efficiency energy dissipation and no supersaturated water body generation |
| CN109440720A (en) * | 2018-11-14 | 2019-03-08 | 天津大学 | A kind of aqueduct is across reservoir point water intaking structure and water intaking, sluicing, dividing method for water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20150813 |
|
| EXPY | Termination of patent right or utility model |