CN204023521U - For the drain cavern structure of rotational flow silo - Google Patents

For the drain cavern structure of rotational flow silo Download PDF

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Publication number
CN204023521U
CN204023521U CN201420265027.9U CN201420265027U CN204023521U CN 204023521 U CN204023521 U CN 204023521U CN 201420265027 U CN201420265027 U CN 201420265027U CN 204023521 U CN204023521 U CN 204023521U
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CN
China
Prior art keywords
rotational flow
flow silo
elevation
drain cavern
silo body
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Expired - Lifetime
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CN201420265027.9U
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Chinese (zh)
Inventor
童建文
周跃年
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PowerChina Chengdu Engineering Co Ltd
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PowerChina Chengdu Engineering Co Ltd
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Priority to CN201420265027.9U priority Critical patent/CN204023521U/en
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Abstract

The utility model discloses a kind of drain cavern structure, especially disclose a kind of drain cavern structure for rotational flow silo, belong to Hydraulic and Hydro-Power Engineering Building Design building technology field.Provide a kind of and can eliminate in a large number the more dump energy that high-velocity flow carries, thus the drain cavern structure for rotational flow silo of protection rotational flow silo bottom.The horizontal cave of debouchure that described drain cavern structure comprises rotational flow silo body and is communicated with described rotational flow silo body, bottom at described rotational flow silo body is also provided with energy dissipator, and the elevation of described energy dissipator bottom surface is lower than the elevation of the base plate of the described horizontal cave of debouchure.

Description

For the drain cavern structure of rotational flow silo
Technical field
The utility model relates to a kind of drain cavern structure, especially relates to a kind of drain cavern structure for rotational flow silo, belongs to Hydraulic and Hydro-Power Engineering Building Design building technology field.
Background technology
Larger in the intake-outlet discrepancy in elevation, and intake-outlet close together, or there are other buildings to arrange in the drain cavern design of impact, high speed water in hole fail to be convened for lack of a quorum in hole and export structure and underwater bed and bank slope cause erosion damage, and affect the safety of Adjacent Buildings, therefore, be necessary to seek the effective measures of first energy dissipating in hole.Generally, be the method for relatively commonly using by building a hole inward eddy energy dissipating drilled shaft elimination part energy.This energy dissipating drilled shaft can only make lower sluicing stream be issued to the effect of preliminary energy dissipating along the rotation of the energy dissipating drilled shaft borehole wall, but the high-velocity flow that carries larger dump energy still can impact silo bottom, form bottom current disorder, rapid, easily vertical shaft base plate, vertical shaft hole crossing with bottom cave of debouchure section and delivery port etc. are caused to erosion damage.
Utility model content
Technical problem to be solved in the utility model is: provides a kind of and can eliminate in a large number the more dump energy that high-velocity flow carries, thus the drain cavern structure for rotational flow silo of protection rotational flow silo bottom.
For solving the problems of the technologies described above adopted technical scheme be: a kind of drain cavern structure for rotational flow silo, the horizontal cave of debouchure that comprises rotational flow silo body and be communicated with described rotational flow silo body, bottom at described rotational flow silo body is also provided with energy dissipator, and the elevation of described energy dissipator bottom surface is lower than the elevation of the base plate of the described horizontal cave of debouchure.
Further, described energy dissipator is made up of to the pit of downward-extension described rotational flow silo body, and the elevation of the bottom surface of described pit is lower than the elevation of the base plate of the described horizontal cave of debouchure.
Further, described rotational flow silo body is rounded in the projection of its cross section.
Further, the bottom surface of described pit is to recessed spheric.
Further, the tangent connection of sidewall of the upper limb of the bottom surface of the described pit of spheric and described rotational flow silo body.
The beneficial effects of the utility model are: because the bottom at described rotational flow silo body is also provided with energy dissipator, and make the elevation of bottom surface of described energy dissipator lower than the elevation of the base plate of described horizontal flood discharging tunnel.Like this, through described rotational flow silo body eddy flow and under current after preliminary energy dissipating, more further eliminate remaining potential energy by described energy dissipator, thereby realize the object of the more dump energy that a large amount of elimination high-velocity flows carries.The elevation setting of the bottom surface of described energy dissipator is come lower than the elevation of the base plate of the described horizontal cave of debouchure, it is the water yield for a storage part enters in advance in described energy dissipator, increase aeration concentrater to form water cushion, and then make the high-velocity flow of letting out under postorder spin current vertical shaft body in the time entering described energy dissipator, reach the effect that effectively supplements energy dissipating, alleviate the impact of rotary water current to vertical shaft base plate simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model for the drain cavern structure of rotational flow silo;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1.
In figure, be labeled as: rotational flow silo body 1, the horizontal cave of debouchure 2, energy dissipator 3, spheric 4.
Detailed description of the invention
As shown in Figure 1, Figure 2 and shown in Fig. 3, be that a kind of that the utility model provides can eliminate the more dump energy that high-velocity flow carries in a large number, thus the drain cavern structure for rotational flow silo of protection rotational flow silo bottom.The horizontal cave of debouchure 2 that described drain cavern structure comprises rotational flow silo body 1 and is communicated with described rotational flow silo body 1, bottom at described rotational flow silo body 1 is also provided with energy dissipator 3, and the elevation of described energy dissipator 3 bottom surfaces is lower than the elevation of the base plate of the described horizontal cave of debouchure 2.Because the bottom at described rotational flow silo body 1 is also provided with energy dissipator 3, and make the elevation of described energy dissipator 3 bottom surfaces lower than the elevation of the base plate of the described horizontal cave of debouchure 2.Like this, through described rotational flow silo body 1 rotate and under current after preliminary energy dissipating, more further eliminate remaining potential energy by described energy dissipator 3, thereby realize a large amount of objects of eliminating the more dump energy that high-velocity flows carry.The elevation setting of the bottom surface of described energy dissipator 3 is come than the elevation of the base plate of the described horizontal cave of debouchure 2, it is the water yield for a storage part enters in advance in described energy dissipator 3, increase aeration concentrater to form water cushion, and then make the high-velocity flow that postorder spin current vertical shaft body is let out for 1 time in the time entering described energy dissipator 3, reach the effect that effectively supplements energy dissipating, alleviate the impact of rotary water current to vertical shaft base plate simultaneously.
In above-mentioned embodiment, in order to simplify the structure of described energy dissipator 3, convenient construction, is set to the pit to downward-extension by described rotational flow silo body 1 by described energy dissipator 3, and makes the elevation of bottom surface of described pit lower than the elevation of the base plate of the described horizontal cave of debouchure 2.Like this, just can make described energy dissipator 3 build in the lump in the time being built into described rotational flow silo body 1, reach convenient object of building.In conjunction with rotational flow silo body 1 described in the prior art in the rounded design feature of the projection of its cross section, in order to improve effect of energy dissipation, simultaneously protect again described energy dissipator 3 not to be rotated as much as possible and under high-velocity flow erosion damage, the bottom surface of described pit is set to recessed spheric 4 structures, and make the upper limb of bottom surface and tangent connection of sidewall of described rotational flow silo body 1 of the described pit of spheric 4, reach improve along the 1 wall rotation of rotational flow silo body and under flow condition, alleviate impact and the pulsation of current to energy dissipator 3 base plates, realize the sufficient aeration of water cushion, reach the effect of more fully supplementing energy dissipating.Meanwhile, the stress condition of circular arc base plate is good, and structure is survivable, can reduce current pit is cheated the erosion attack risk of the structure upstream faces such as wall, bottom cave of debouchure section and outlet, makes flow regime of impeller outflow more stable, effectively improves high-velocity flow energy dissipation rate in hole.

Claims (2)

1. the drain cavern structure for rotational flow silo, the horizontal cave of debouchure (2) that comprises rotational flow silo body (1) and be communicated with described rotational flow silo body (1), also be provided with energy dissipator (3) in the bottom of described rotational flow silo body (1), the elevation of described energy dissipator (3) bottom surface is lower than the elevation of the described horizontal cave of debouchure (2) base plate, it is characterized in that: described energy dissipator (3) is made up of to the pit of downward-extension described rotational flow silo body (1), the elevation of the bottom surface of described pit is lower than the elevation of the base plate of the described horizontal cave of debouchure (2), the bottom surface of described pit is to recessed spheric (4), the tangent connection of sidewall of the upper limb of the bottom surface of the described pit of spheric (4) and described rotational flow silo body (1).
2. the drain cavern structure for rotational flow silo according to claim 1, is characterized in that: described rotational flow silo body (1) is rounded in the projection of its cross section.
CN201420265027.9U 2014-05-22 2014-05-22 For the drain cavern structure of rotational flow silo Expired - Lifetime CN204023521U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420265027.9U CN204023521U (en) 2014-05-22 2014-05-22 For the drain cavern structure of rotational flow silo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420265027.9U CN204023521U (en) 2014-05-22 2014-05-22 For the drain cavern structure of rotational flow silo

Publications (1)

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CN204023521U true CN204023521U (en) 2014-12-17

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105369880A (en) * 2015-10-15 2016-03-02 上海市政工程设计研究总院(集团)有限公司 Direct drop type draining drop well
RU2609243C1 (en) * 2016-01-11 2017-01-31 Михаил Иванович Голубенко Flow energy damper
CN107421874A (en) * 2017-09-08 2017-12-01 湘潭大学 A kind of horizontal seepage flow test device and its application method
CN110294227A (en) * 2018-03-22 2019-10-01 中国石油化工股份有限公司 A kind of application method of Water Tank equipped with multistage energy dissipator and the Water Tank
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

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105369880A (en) * 2015-10-15 2016-03-02 上海市政工程设计研究总院(集团)有限公司 Direct drop type draining drop well
CN105369880B (en) * 2015-10-15 2017-06-27 上海市政工程设计研究总院(集团)有限公司 A kind of vertical draining drop well
RU2609243C1 (en) * 2016-01-11 2017-01-31 Михаил Иванович Голубенко Flow energy damper
CN107421874A (en) * 2017-09-08 2017-12-01 湘潭大学 A kind of horizontal seepage flow test device and its application method
CN107421874B (en) * 2017-09-08 2023-10-10 湘潭大学 Horizontal seepage test device and use method thereof
CN110294227A (en) * 2018-03-22 2019-10-01 中国石油化工股份有限公司 A kind of application method of Water Tank equipped with multistage energy dissipator and the Water Tank
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

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Granted publication date: 20141217