CN103614994A - Energy dissipation flood discharging device - Google Patents
Energy dissipation flood discharging device Download PDFInfo
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- CN103614994A CN103614994A CN201310660592.5A CN201310660592A CN103614994A CN 103614994 A CN103614994 A CN 103614994A CN 201310660592 A CN201310660592 A CN 201310660592A CN 103614994 A CN103614994 A CN 103614994A
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Abstract
The invention relates to the field of water conservancy and hydropower, in particular an energy dissipation flood discharging device. The energy dissipation flood discharging device is gentler in the energy dissipation process. The energy dissipation flood discharging device comprises a flood discharging hole and further comprises a central shaft and a spiral flow channel. The central shaft is arranged at the axis position of the flood discharging hole, the spiral flow channel is arranged with the central shaft as the axis, an inlet of the spiral flow channel is communicated with an inlet of the flood discharging hole, and an outlet of the spiral flow channel is communicated with an outlet of the flood discharging hole. When water flow enters the structure, the water flow moves spirally along the spiral flow channel and finally arrives at the bottom of the structure. The spiral flow channel is long and many curves exist, so that the water flow is acted by friction force for a long time, and since the water flow collides with the spiral flow channel, a large amount of gravitational potential energy is transferred into heat energy. Thus, the purpose of energy dissipation is achieved.
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, conventionally all can use flood discharge structure, in flood discharge process, due to the problem of difference in height, water can impact lower floor, in long-term use, makes the ground of lower floor can be subject to serious damage.In view of this problem, designed at present energy dissipating flood discharge device, make water in dropping process, be subject to friction and mutually collide to consume gravitional force and the kinetic energy of water, reduce the impact of water to ground.
As being 200820029327.1 in the patent No., open day is in the Chinese patent < < horizontal rotational flow energy dissipating flood discharging hole > > on April 1st, 2009, it has been provided with and has revolved hole in the bottom of crossing flow through shaft, current have entered and have revolved chamber so that current produce eddy flow through flow through shaft, cyclone water stream enters into eddy flow hole section and carries out energy dissipating, and then after the energy dissipating of cushion pool section and adjusting, current enter water-break hole, time current enter more reposefully downstream original bed.Although above-mentioned flood discharging tunnel can be realized energy dissipating, but in actual use, while falling in flow through shaft due to water, be not subject to any energy dissipating, so it revolves the velocity shock with larger in hole to rising, long-term use will make to revolve hole surface breakdown, lose the effect of revolving.And above-mentioned flood discharging tunnel need to be longer eddy flow hole section, cushion pool section and water-break hole could realize completely energy dissipating, the distance that this must be longer could realize.This increases construction cost.
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 be take central axis as axis setting, 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, on the water passage surface of described helical flow path, be provided with block, described block arranges along the water (flow) direction interval of helical flow path.
Further, described central axis is hollow pipe, and central axis is connected with atmosphere, is provided with the ventilation device that helical flow path and atmosphere are communicated on the wall of central axis.
Further, described ventilation device is air vent, and this air vent is arranged laying along the wall of central axis by spiral way.
Further, described helical flow path both sides are sealedly connected on respectively on central axis and flood discharging tunnel inwall.
The invention has the beneficial effects as follows: when current enter into after 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 to consumption in a large number, thereby reach the effect of energy dissipating.In said 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, has improved application life.Meanwhile, because current itself entered longer stroke, therefore longer eddy flow hole section, cushion pool section and water-break hole needn't be set in downstream again, directly just can be drained into former river course, the great like this construction cost of having saved.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, better carry 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.
The specific embodiment
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 be take central axis 2 as axis setting, 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 integral body are spirality, and the water passage surface of helical flow path 3 can be set to different shapes, and for example waveform, plane and step-like also can evenly arrange block along flowing on water passage surface.Said structure can arrange according to different situations, for example, in the situation that drop is less, directly adopt plane.Larger at drop, or current total energy is when larger, step-like, the waveform of recommend adoption or block is set.To introduce the feature of these three kinds of forms 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 along steps at different levels, flow downward gradually, current are when flowing to next stage step, and its whereabouts impinges upon on next stage step, thus by kinetic transformation the heat energy in order to rub, thereby realize energy dissipating, so, after the step through all, this energy dissipating is added up, thereby transformed the energy of most current, reached good effect of energy dissipation.Meanwhile, current ceaselessly spiral turn to, and have increased the contact friction of itself and flood discharging tunnel 1, have better realized energy dissipating.
For wavy helical flow path 3; Current flow downward along corrugated surface, and its current, along with the surface undulation of wave, have extended the distance of current, make current be subject to the frictional force effect of longer time, thereby effectively consume flow energy.Meanwhile, the trough place on surface can collect water, and the water collision that the water staying from crest can be assembled with trough, also can consume part energy.Meanwhile, current ceaselessly spiral turn to, and have increased the contact friction of itself and flood discharging tunnel 1, have better realized energy dissipating.
For the helical flow path 3 that block is set; Block is evenly laid along helical flow path 3, and at current, through out-of-date, block collects current, forms the puddle group of multi-stage stairs, and when current flow down from upper level puddle, collide in meeting and next stage puddle, thereby effectively consumes the energy of current.Meanwhile, current ceaselessly spiral turn to, and have increased the contact friction of itself and flood discharging tunnel 1, have better realized energy dissipating.
In order better to 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 atmosphere, is provided with the ventilation device that helical flow path 3 and atmosphere are communicated on the wall of central axis 2.Ventilation device is traditionally arranged to be air vent 4, and this air vent 4 is arranged laying along the wall of central axis 2 by spiral way, and air vent 4 should be higher than the water surface in helical flow path 3.The upper end of central axis 2 is connected with atmosphere, and lower end is connected with the outlet of flood discharging tunnel 1, even if the benefit arranging is like this 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 flood discharging tunnel 1 in be formed centrally negative pressure, now just have large quantity of air and enter, make to be mingled with in current a large amount of gas, the turbulent flow of increased water flow, has increased mutual collision and the friction of current, effectively raises the effect of energy dissipating.Ventilation device makes central axis 2 at one stroke dual-purpose, without increasing structure, can also obtain better energy dissipating effect on the basis of wananty costs.
Ventilation device also can adopt communicating pipe to realize, communicating pipe one end in central axis 2, the other end, in helical flow path 3, is inlet end in one end of central axis 2, in one end of helical flow path 3, is outlet side.Communicating pipe need arrange a plurality of, can be located on central axis 2 walls according to spiral cloth.Inlet end can be set to higher than outlet side, can reduce like this water and spill from communicating pipe.Air vent 4 also can be set to inclined hole, in one end of central axis 2 inwalls 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 respectively on central axis 2 and flood discharging tunnel 1 inwall.Now, two sidewalls of helical flow path 3 are flood discharging tunnel 1 inwall and central axis 2, make like this three compacter, and utilization ratio is also higher.
Certainly, also helical flow path 3 can be made to independent runner, it carries two sidewalls, only by support, is connected to central axis 2.
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 is improved the application life of energy dissipating flood discharge device itself.And this energy dissipating flood discharge device can directly be processed in factory, then to scene, installs, and this has reduced on-the-spot construction volume.
Claims (7)
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) be take central axis (2) as axis setting, 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).
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, is characterized in that: on the water passage surface of described helical flow path (3), be provided with block, described block arranges 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 claim 1 to 4, it is characterized in that: described central axis (2) is hollow pipe, central axis (2) is connected with atmosphere, is provided with the ventilation device that helical flow path (3) and atmosphere are communicated on the wall of central axis (2).
6. energy dissipating flood discharge device as claimed in claim 5, is characterized in that: described ventilation device is air vent (4), and this air vent (4) is arranged laying along the wall of central axis (2) by spiral way.
7. the energy dissipating flood discharge device as described in claim as arbitrary in claim 1 to 4, is characterized in that: described helical flow path (3) both sides are sealedly connected on respectively on central axis (2) and flood discharging tunnel (1) inwall.
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| CN201310660592.5A CN103614994B (en) | 2013-12-06 | 2013-12-06 | Energy dissipating flood discharge device |
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| CN201310660592.5A CN103614994B (en) | 2013-12-06 | 2013-12-06 | Energy dissipating flood discharge device |
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| CN103614994B CN103614994B (en) | 2015-08-12 |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652378A (en) * | 2015-01-16 | 2015-05-27 | 四川大学 | Variable-radius spiral flood discharge tunnel |
| CN104652379A (en) * | 2015-01-16 | 2015-05-27 | 四川大学 | Variable-radius spiral stepped flood discharge tunnel |
| CN104912174A (en) * | 2015-05-25 | 2015-09-16 | 浙江浙牌科技有限公司 | Convenient-to-mount high-strength water dropping well |
| CN105421569A (en) * | 2015-12-09 | 2016-03-23 | 中铁第四勘察设计院集团有限公司 | Spiral flow shaft type energy dissipation drop well |
| CN105604174A (en) * | 2015-12-19 | 2016-05-25 | 中国水利水电科学研究院 | Annular baffle plate energy dissipation vertical 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 |
| CN106120674A (en) * | 2016-07-05 | 2016-11-16 | 李康 | The reservoir spillway device of a kind of improvement and flood discharging method thereof |
| CN107401147A (en) * | 2017-06-26 | 2017-11-28 | 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 |
| CN108755619A (en) * | 2018-07-03 | 2018-11-06 | 云南润晶水利电力工程技术股份有限公司 | A kind of lateral flow spillway of reservoir spillway |
| 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 |
| CN110805006A (en) * | 2019-11-23 | 2020-02-18 | 深圳市东深工程有限公司 | Reservoir spillway and flood discharge method |
| RU2718801C1 (en) * | 2019-09-13 | 2020-04-14 | Михаил Иванович Голубенко | Water flow energy absorber |
| CN111021303A (en) * | 2018-10-10 | 2020-04-17 | 武红亮 | Multifunctional dam waterproof safety hydraulic mechanical device |
| CN111851435A (en) * | 2020-08-10 | 2020-10-30 | 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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Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652379A (en) * | 2015-01-16 | 2015-05-27 | 四川大学 | Variable-radius spiral stepped flood discharge tunnel |
| CN104652378B (en) * | 2015-01-16 | 2016-07-20 | 四川大学 | Become radial spi flood discharging tunnel |
| CN104652378A (en) * | 2015-01-16 | 2015-05-27 | 四川大学 | Variable-radius spiral flood discharge tunnel |
| CN104652379B (en) * | 2015-01-16 | 2016-08-24 | 四川大学 | Become radial spi ladder flood discharging tunnel |
| CN104912174A (en) * | 2015-05-25 | 2015-09-16 | 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 |
| CN105421569A (en) * | 2015-12-09 | 2016-03-23 | 中铁第四勘察设计院集团有限公司 | Spiral flow shaft type energy dissipation drop well |
| CN105604174A (en) * | 2015-12-19 | 2016-05-25 | 中国水利水电科学研究院 | Annular baffle plate energy dissipation vertical 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 |
| CN106120674A (en) * | 2016-07-05 | 2016-11-16 | 李康 | The reservoir spillway device of a kind of improvement and flood discharging method thereof |
| CN107401147A (en) * | 2017-06-26 | 2017-11-28 | 河海大学 | A kind of multistage free-electron model formula energy dissipating drilled shaft of annular |
| WO2019000934A1 (en) * | 2017-06-26 | 2019-01-03 | 河海大学 | Annular multi-level free-fall-type energy-dissipating vertical shaft |
| 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 |
| CN108755619A (en) * | 2018-07-03 | 2018-11-06 | 云南润晶水利电力工程技术股份有限公司 | A kind of lateral flow spillway of reservoir spillway |
| 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 |
| CN111021303A (en) * | 2018-10-10 | 2020-04-17 | 武红亮 | Multifunctional dam waterproof safety hydraulic mechanical device |
| 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 |
| CN110805006A (en) * | 2019-11-23 | 2020-02-18 | 深圳市东深工程有限公司 | Reservoir spillway and flood discharge method |
| 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 |
| CN111851435A (en) * | 2020-08-10 | 2020-10-30 | 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 |
| 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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