CN103614994B - Energy dissipating flood discharge device - Google Patents
Energy dissipating flood discharge device Download PDFInfo
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- CN103614994B CN103614994B CN201310660592.5A CN201310660592A CN103614994B CN 103614994 B CN103614994 B CN 103614994B CN 201310660592 A CN201310660592 A CN 201310660592A CN 103614994 B CN103614994 B CN 103614994B
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- flow path
- helical flow
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- energy dissipating
- discharging tunnel
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Abstract
The invention discloses a kind of field of water conservancy, especially a kind of energy dissipating flood discharge device.The invention provides the energy dissipating flood discharge device that a kind of energy dissipation is milder, comprise flood discharging tunnel, also comprise central axis and helical flow path, described central axis is arranged on the axis place of flood discharging tunnel, described helical flow path is that axis is arranged with central axis, the import of described helical flow path is connected with the import of described flood discharging tunnel, and the outlet of described helical flow path is connected with the outlet of described flood discharging tunnel.After current enter into this structure, it is along helical flow path screw, finally reach this structural base, because the runner of helical flow path is longer, bend is many, make current be subject to long frictional force effect, and current can collide with helical flow path, thus gravitional force is converted into heat energy in a large number, thus reaches the effect of energy dissipating.
Description
Technical field
The present invention relates to field of water conservancy, especially a kind of energy dissipating flood discharge device.
Background technology
In water conservancy construction, usually all can use flood discharge structure, in flood discharge process, due to the problem of difference in height, water can impact lower floor, makes the ground of lower floor can be subject to serious damage in Long-Time Service.In view of this problem, devise energy dissipating flood discharge device at present, water is collided with the gravitional force and the kinetic energy that consume water with mutual by friction in dropping process, reduces water to the impact on ground.
As being 200820029327.1 in the patent No., publication date is in the Chinese patent " horizontal rotational flow energy dissipating flood discharging hole " on April 1st, 2009, it has been provided with in the bottom crossing flow through shaft and has revolved hole, current have entered through flow through shaft and have revolved room to make current generation eddy flow, cyclone water stream enters into swirling tunnel section and carries out energy dissipating, and then through the energy dissipating of cushion pool section and adjustment after, current enter water-break hole, time current enter downstream original bed more reposefully.Although above-mentioned flood discharging tunnel can realize energy dissipating, but in actual use, owing to not being subject to any energy dissipating when water falls in flow through shaft, therefore it will revolve in hole to rising with larger velocity shock, Long-Time Service will make to revolve hole surface breakdown, lose the effect of revolving.And above-mentioned flood discharging tunnel needs longer swirling tunnel section, cushion pool section and water-break hole could realize energy dissipating completely, the distance that this must be longer could realize.This makes construction cost increase.
Summary of the invention
Technical problem to be solved by this invention is to provide the milder energy dissipating flood discharge device of a kind of energy dissipation.
The present invention solves the energy dissipating flood discharge device that its technical problem adopts, comprise flood discharging tunnel, also comprise central axis and helical flow path, described central axis is arranged on the axis place of flood discharging tunnel, described helical flow path is that axis is arranged with central axis, the import of described helical flow path is connected with the import of described flood discharging tunnel, and the outlet of described helical flow path is connected with the outlet of described flood discharging tunnel.
Further, the water passage surface of described helical flow path is step-like.
Further, the water passage surface undulate of described helical flow path.
Further, the water passage surface of described helical flow path is provided with block, described block is arranged along the water (flow) direction interval of helical flow path.
Further, described central axis is hollow pipe, and central axis is connected with air, and the wall of central axis is provided with the ventilation device that helical flow path and air are communicated.
Further, described ventilation device is air vent, this air vent centrally axle wall by spiral way carry out arrangement lay.
Further, described helical flow path both sides are sealedly connected on central axis and flood discharging tunnel inwall respectively.
The invention has the beneficial effects as follows: after current enter into this device, it is along helical flow path screw, finally reach this bottom of device, because the runner of helical flow path is longer, bend is many, make current be subject to long frictional force effect, and current can collide with helical flow path, thus gravitional force is transformed consumption in a large number, thus reach the effect of energy dissipating.In above process, energy dissipating is continual, enters into this device will be subject to energy dissipating effect from current, and this makes the conversion of energy comparatively mild, and the impact that whole device is subject to is less, improves application life.Meanwhile, because current itself entered longer stroke, therefore longer swirling tunnel section, cushion pool section and water-break hole need not be set in downstream again, directly just can be drained into former river course, save construction cost greatly like this.Central axis can also be set to ventilating pipe, makes current mix air in flowing, the turbulent flow of increased water flow, thus the collision of current self and friction are increased, and better carries out energy dissipating.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is phantom drawing of the present invention;
Component, position and numbering in figure: flood discharging tunnel 1, central axis 2, helical flow path 3, air vent 4.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As depicted in figs. 1 and 2, the present invention includes flood discharging tunnel 1, also comprise central axis 2 and helical flow path 3, described central axis 2 is arranged on the axis place of flood discharging tunnel 1, described helical flow path 3 with central axis 2 for axis arrange, the import of described helical flow path 3 is connected with the import of described flood discharging tunnel 1, and the outlet of described helical flow path 3 is connected with the outlet of described flood discharging tunnel 1.Helical flow path 3 entirety is spirality, and the water passage surface of helical flow path 3 can be set to different shapes, such as waveform, plane and step-like, also on water passage surface, evenly can arrange block along flowing to.Said structure can be arranged according to different situations, such as, when drop is less, directly adopts plane.Comparatively large at drop, or when current total energy is larger, then recommend to adopt step-like, waveform or block is set.To the feature of these three kinds of forms be introduced below:
For step-like helical flow path 3, as shown in Figure 1; Current enter into helical flow path 3 from the import of flood discharging tunnel 1, then flow downward gradually along step at different levels, current are when flowing to next stage step, and its whereabouts impinges upon on next stage step, thus by the heat energy of kinetic transformation in order to rub, thus realize energy dissipating, so, after all steps, this energy dissipating is added up, thus transformed the energy of most current, reach good effect of energy dissipation.Meanwhile, current ceaselessly spiral turn to, and add the contact friction of itself and flood discharging tunnel 1, better achieve energy dissipating.
For wavy helical flow path 3; Current flow downward along corrugated surface, and its current, along with the surface undulation of wave, extend the distance of current, make current be subject to the frictional force effect of longer time, thus effectively consume flow energy.Meanwhile, the trough place on surface can collect water, and the water that the water stayed from crest can be assembled with trough collides, and also can consume part energy.Meanwhile, current ceaselessly spiral turn to, and add the contact friction of itself and flood discharging tunnel 1, better achieve energy dissipating.
For the helical flow path 3 arranging block; Block is evenly laid along helical flow path 3, and at current through out-of-date, block makes current collect, and forms the puddle group of multi-stage stairs, when current flow down from upper level puddle, can collide with next stage puddle, thus the effective energy consuming current.Meanwhile, current ceaselessly spiral turn to, and add the contact friction of itself and flood discharging tunnel 1, better achieve energy dissipating.
In order to better consume the energy of current, as shown in Figure 1, described central axis 2 is hollow pipe, and one end of central axis 2 is connected with air, and the wall of central axis 2 is provided with the ventilation device that helical flow path 3 and air are communicated.Ventilation device is traditionally arranged to be air vent 4, this air vent 4 centrally axle 2 wall by spiral way carry out arrangement lay, air vent 4 should higher than the water surface in helical flow path 3.The upper end of central axis 2 is connected with air, and lower end is connected with the outlet of flood discharging tunnel 1, even if the benefit arranged like this is that a small amount of water enters into central axis 2 from air vent 4, also can discharge from lower end.In the helical flow process of current, can make to be formed centrally negative pressure in flood discharging tunnel 1, now just have large quantity of air and enter, make in current, to be mingled with a large amount of gas, the turbulent flow of increased water flow, adds mutual collision and the friction of current, effectively raises the effect of energy dissipating.Ventilation device makes central axis 2 dual-purpose at one stroke, without the need to increasing structure, the basis of wananty costs can also obtain better energy dissipating effect.
Ventilation device also can adopt communicating pipe to realize, and communicating pipe, one end was in central axis 2, and the other end, in helical flow path 3, is inlet end in one end of central axis 2, is outlet side in one end of helical flow path 3.Communicating pipe need arrange multiple, can be located on central axis 2 wall according to spiral cloth.Inlet end can be set to higher than outlet side, can reduce water like this and spill from communicating pipe.Air vent 4 also can be set to inclined hole, in one end of central axis 2 inwall higher than the one end at outer wall.
Concrete, as shown in Figure 1, described helical flow path 3 both sides are sealedly connected on central axis 2 and flood discharging tunnel 1 inwall respectively.Now, namely two sidewalls of helical flow path 3 are flood discharging tunnel 1 inwall and central axis 2, and make three compacter like this, utilization ratio is also higher.
Certainly, also helical flow path 3 can be made independent runner, namely it carries two sidewalls, is connected to central axis 2 by means of only support.
Said structure all can adopt steel work to make, and it has following advantage, does not need too many space and distance just can realize energy dissipating, and the process of energy dissipating is comparatively mild, and the application life of energy dissipating flood discharge device itself is improved.And this energy dissipating flood discharge device can directly be processed in factory, and scene of then arriving is installed, which reduce on-the-spot construction volume.
Claims (5)
1. energy dissipating flood discharge device, comprise flood discharging tunnel (1), it is characterized in that: also comprise central axis (2) and helical flow path (3), described central axis (2) is arranged on the axis place of flood discharging tunnel (1), described helical flow path (3) with central axis (2) for axis arrange, the import of described helical flow path (3) is connected with the import of described flood discharging tunnel (1), and the outlet of described helical flow path (3) is connected with the outlet of described flood discharging tunnel (1); Described central axis (2) is hollow pipe, and central axis (2) is connected with air, and the wall of central axis (2) is provided with the ventilation device that helical flow path (3) and air are communicated; Described ventilation device is air vent (4), this air vent (4) centrally axle (2) wall by spiral way carry out arrangement lay.
2. energy dissipating flood discharge device as claimed in claim 1, is characterized in that: the water passage surface of described helical flow path (3) is step-like.
3. energy dissipating flood discharge device as claimed in claim 1, is characterized in that: the water passage surface undulate of described helical flow path (3).
4. energy dissipating flood discharge device as claimed in claim 1, it is characterized in that: the water passage surface of described helical flow path (3) is provided with block, described block is arranged along the water (flow) direction interval of helical flow path (3).
5. the energy dissipating flood discharge device as described in claim as arbitrary in Claims 1-4, is characterized in that: described helical flow path (3) both sides are sealedly connected on central axis (2) and flood discharging tunnel (1) inwall respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310660592.5A CN103614994B (en) | 2013-12-06 | 2013-12-06 | Energy dissipating flood discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310660592.5A CN103614994B (en) | 2013-12-06 | 2013-12-06 | Energy dissipating flood discharge device |
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| Publication Number | Publication Date |
|---|---|
| CN103614994A CN103614994A (en) | 2014-03-05 |
| CN103614994B true CN103614994B (en) | 2015-08-12 |
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| CN201310660592.5A Expired - Fee Related CN103614994B (en) | 2013-12-06 | 2013-12-06 | Energy dissipating flood discharge device |
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| CN104652378B (en) * | 2015-01-16 | 2016-07-20 | 四川大学 | Become radial spi flood discharging tunnel |
| CN104652379B (en) * | 2015-01-16 | 2016-08-24 | 四川大学 | Become radial spi ladder flood discharging tunnel |
| CN104912174B (en) * | 2015-05-25 | 2017-02-01 | 浙江浙牌科技有限公司 | Convenient-to-mount high-strength water dropping well |
| CN105421569B (en) * | 2015-12-09 | 2018-09-18 | 中铁第四勘察设计院集团有限公司 | Rotational flow silo formula energy dissipating drop well |
| CN105604174B (en) * | 2015-12-19 | 2017-10-13 | 中国水利水电科学研究院 | A kind of annular folded plate energy dissipating drilled shaft |
| CN105888043A (en) * | 2016-05-24 | 2016-08-24 | 上海市城市建设设计研究总院 | Drainage deep-tunnel spiral channel type swirl shaft |
| CN106120674B (en) * | 2016-07-05 | 2017-11-24 | 邱云鹏 | A kind of improved reservoir spillway device and its flood discharging method |
| CN107401147B (en) * | 2017-06-26 | 2019-04-30 | 河海大学 | A kind of multistage free-electron model formula energy dissipating drilled shaft of annular |
| CN107513986A (en) * | 2017-10-09 | 2017-12-26 | 安徽理工大学 | A kind of multi-level cone shape sand discharge energy dissipator |
| CN108755619B (en) * | 2018-07-03 | 2020-12-01 | 云南润晶工程技术(集团)股份有限公司 | Side-channel type spillway for reservoir flood discharge |
| CN111021303B (en) * | 2018-10-10 | 2021-06-29 | 宁夏崛兴建设工程有限公司 | Multifunctional dam waterproof safety hydraulic mechanical device |
| CN110173033A (en) * | 2019-06-06 | 2019-08-27 | 中机中联工程有限公司 | A kind of spiral-flow type drop well |
| RU2718801C1 (en) * | 2019-09-13 | 2020-04-14 | Михаил Иванович Голубенко | Water flow energy absorber |
| CN110805006B (en) * | 2019-11-23 | 2021-04-13 | 深圳市东深工程有限公司 | Reservoir spillway and flood discharge method |
| CN111851435B (en) * | 2020-08-10 | 2021-11-30 | 洛阳水利勘测设计有限责任公司 | Diving whirl-raising pier vertical shaft rotational flow energy dissipation flood discharge hole |
| RU2758132C1 (en) * | 2021-01-11 | 2021-10-26 | Михаил Иванович Голубенко | Water flow energy dampers |
| CN113605330A (en) * | 2021-07-22 | 2021-11-05 | 湖北省水利水电规划勘测设计院 | Multistage rectification slideway shaft rotational flow flood discharging tunnel |
| CN114321550A (en) * | 2021-11-22 | 2022-04-12 | 太原理工大学 | Spiral ladder type energy dissipation device suitable for pressure pipeline |
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| JP2001295250A (en) * | 2000-04-17 | 2001-10-26 | Kubota Corp | Pressure reducing valve |
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| CN101886377A (en) * | 2010-07-19 | 2010-11-17 | 四川大学 | Step swirling flow vertical shaft |
| CN102926360A (en) * | 2012-11-22 | 2013-02-13 | 中国水电顾问集团中南勘测设计研究院 | Discharge chute with projections |
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| CN103614994A (en) | 2014-03-05 |
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Inventor after: Zhang Yin Inventor after: Dai Miaolin Inventor after: Ma Yongzhi Inventor after: Liu Xiaoqing Inventor after: Yin Ming Inventor before: Zhang Yin |
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