CN206800344U - Energy dissipation by aeration and gas explosion-proof flood discharge device - Google Patents
Energy dissipation by aeration and gas explosion-proof flood discharge device Download PDFInfo
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- CN206800344U CN206800344U CN201720566938.9U CN201720566938U CN206800344U CN 206800344 U CN206800344 U CN 206800344U CN 201720566938 U CN201720566938 U CN 201720566938U CN 206800344 U CN206800344 U CN 206800344U
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Abstract
The utility model discloses energy dissipation by aeration and gas explosion-proof flood discharge device, including linkage section, passage, volute chamber, vertical shaft, perps, baffle box, branch of drainning off floodwaters hole, steam vent, collection chamber, transverse slat, the main hole of flood discharge；Vertical shaft top connects the volute chamber, volute chamber top is provided with the passage, volute chamber side connects linkage section, silo bottom is mutually passed through with horizontal baffle box and connected, the joining place of silo bottom and horizontal baffle box has perps, connection is mutually passed through in baffle box, branch of drainning off floodwaters hole, the main hole of flood discharge successively, and branch of drainning off floodwaters hole connects steam vent along journey vertical connection collection chamber, collection chamber top.Flood discharging method of the present utility model uses rotational flow silo perps baffle box combined energy dissipation technology using vertical shaft to the transition type of attachment in branch hole of drainning off floodwaters, exhaust technique is combined using collection chamber and transverse slat with the type of attachment of blast pit in branch of drainning off floodwaters hole, solve flowing water reach drain off floodwaters branch hole when fluidised form it is unstable, air water does not separate, the problem of soil plug collection chamber.
Description
Technical field
The utility model belongs to water conservancy energy dissipating flood discharge technical field, and in particular to energy dissipation by aeration and gas explosion-proof flood discharge device.
Background technology
Rotational flow flood discharging tunnel is energy dissipater's form into permanent flood discharging tunnel by reconstruction of diversion tunnel.Rotational flow flood discharging tunnel regards it and rotates water
The position occurred is flowed, the energy dissipating of vertical shaft eddy flow and level rotary flow energy dissipating can be divided into, its principle utilizes the centrifugal force shape of rotary water current
Into cavity, increase hole wall pressure power and flow resistance, extend flow, reach the purpose for preventing cavitation corrosion and energy dissipating.Cyclonic flotation column is let out
Hongdong is typically made up of diversion section, volute chamber, vertical shaft and the part of water exit end four.The outstanding feature of this flood discharging tunnel is both with larger
Discharge capacity, there is higher energy dissipation rate again.Because provided with diversion section, it is relatively more flexible in arrangement, adaptation to the ground ability
It is stronger.The effect of volute chamber is the current in vertical shaft is close to borehole wall rotation, and residual compression is formed on wall, makes current
It is more stable, cavitation and cavitation erosion phenomenon common in other forms energy dissipating will not be caused, also just protected due to the cavity on vertical shaft axis
The stability of the fluidised form in vertical shaft when less than design discharge has been demonstrate,proved, has alleviated the pulsation of current and its caused structural vibration.By
It is relatively thin in water flow rotary effect and adherent water flow layer thickness, add the energy dissipation rate of vertical shaft section.Current existing rotational flow silo
Energy dissipating exhaust scheme mainly has：Flood discharging tunnel leading portion set block water pier and latter end set ventilation well device；Let out in rotational flow silo
Hongdong import sets stream deflector and sets gas collection bank, ventilation well, relieving stagnant Qi bank etc. in outlet section；Using vertical pressing plate technology and porous
Plate technique or hole cock body and passage；With submerged rotating pier flow-blocking damping；Several rows of gas well is set on flood discharging tunnel top, passes through row
Gas well shunting flood discharge energy dissipating.
Such as Chinese patent application（Authorization Notice No.：CN201214781Y）A kind of horizontal rotational flow energy dissipating flood discharging hole is disclosed,
The horizontal rotational flow energy dissipating flood discharging hole, the flood discharging tunnel specifically include water inlet, cross flow through shaft, play rotation room, swirling tunnel section, cushion pool
Section, water-break hole section etc., it make use of diversion tunnel and is reconstructed into permanent flood discharging tunnel, but due to it venthole and
Play rotation room to link together, without single collection chamber and venthole, holding causes eddy flow to carry a large amount of air scour flood discharge masters very much
Hole, damage the service life of flood discharging tunnel.
The content of the invention
（1）Technical problems to be solved
The utility model is dull in order to overcome energy dissipating box structure in traditional flood discharging tunnel, and delivery port exhaust mode is narrow to be lacked
Point, to solve above technical problem, the utility model provides energy dissipation by aeration and gas explosion-proof flood discharge device, and flood discharge vertical shaft props up to drainning off floodwaters
The transition type of attachment in hole uses the connection shape of rotational flow silo-perps baffle box combined energy dissipation technology, branch of drainning off floodwaters hole and blast pit
Formula is solved flowing water and is reached when drainning off floodwaters branch hole that fluidised form is unstable using collection chamber-transverse slat joint exhaust technique, and air water does not separate,
The problem of soil plug collection chamber.
（2）Technical scheme
In order to solve the above-mentioned technical problem, the utility model provides energy dissipation by aeration and gas explosion-proof flood discharge device, specifically includes
Linkage section, passage, volute chamber, vertical shaft, perps, baffle box, branch of drainning off floodwaters hole, steam vent, collection chamber, transverse slat, the main hole of flood discharge；It is described
Vertical shaft top connects the volute chamber, and the volute chamber top is provided with the passage, and the volute chamber side connects the linkage section, institute
State silo bottom and mutually passed through with the horizontal baffle box and connect, the joining place of the silo bottom and the level baffle box is provided with institute
Perps is stated, connection is mutually passed through in the baffle box, branch of drainning off floodwaters hole, the main hole of flood discharge successively, described to drain off floodwaters described in branch hole along journey vertical connection
Collection chamber, the collection chamber top connect the steam vent, and the transverse slat level is located at branch hole and the collection chamber of drainning off floodwaters
Joining place.
The linkage section connects with the volute chamber in an inclined manner, is with horizontal the span into inclination angle：10°≤
The junction of α≤50 °, volute chamber and vertical shaft uses passage reducing mode, and passage is from top to bottom from large to small.
The silo bottom is provided with cushion pool, and the width of the baffle box linearly increases to and the branch hole internal diameter that drains off floodwaters along journey
Unanimously, crest level flushes with branch hole of drainning off floodwaters described thereafter, and bottom elevation is linearly reduced to consistent with the branch hole internal diameter that drains off floodwaters along journey.
The perps is a rectangular aperture, length-width-ratio >=6.5.
The transverse slat is vertically set on the gas collection chamber interior walls, and plate bottom surface flushes with the branch hole Dong Ding that drains off floodwaters.
（3）Beneficial effect
The beneficial effects of the utility model：
1st, when water flows through vertical shaft eddy flow arrival bottom section, flow is gradually shunted by perps, when eddy flow reaches cushion pool,
Energy is largely dissipated, alleviates the energy dissipating burden of cushion pool.
2nd, when water flows through perps and enters baffle box, forcing high-velocity current are projected from perps, and water is flowed through after perps in baffle box
It is interior diffusion stretching, dissipation energy, to drain off floodwaters branch hole entrance when fluidised form stablized, air water separates in time, improve energy dissipation rate and
Stability.
3rd, exhaust technique is combined in branch of drainning off floodwaters hole with the type of attachment of blast pit using collection chamber-transverse slat, and transverse slat design is simple,
It can prevent partial air from bringing downstream inlet into because flow turbulence is fallen after rise to the main hole of flood discharge by collection chamber again, solve flowing water and reach row
The problem of fluidised form is unstable during big vast branch hole, air water does not separate, soil plug collection chamber, effectively exclude because of the unfavorable gas of energy dissipation by aeration
Body is mixed into the risk that pressurized tunnel causes gas explosion to destroy.
Brief description of the drawings
Fig. 1 is energy dissipation by aeration and the main hole profilograph of gas explosion-proof flood discharge device；
Fig. 2 is linkage section and volute chamber 1-1 profiles；
Fig. 3 is baffle box 2-2 profiles；
Fig. 4 is collection chamber and transverse slat 3-3 profiles.
Embodiment
The technical scheme in the embodiment of the utility model is further clearly and completely retouched with reference to embodiment
State, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole embodiments.
Embodiment one
The utility model provides energy dissipation by aeration and gas explosion-proof flood discharge device, such as schemes（1-4）, specifically include linkage section 101, lead to
Stomata 102, volute chamber 103, vertical shaft 104, perps 105, baffle box 106, branch of drainning off floodwaters hole 107, steam vent 108）, it is collection chamber 109, horizontal
Plate 110, the main hole 111 of flood discharge；The top of vertical shaft 104 connects the volute chamber 103, and the top of volute chamber 103 is provided with the ventilation
Hole 102, the side of volute chamber 103 connect the linkage section 101, and the bottom of vertical shaft 104 is passed through with the horizontal phase of baffle box 106
The joining place of connection, the bottom of vertical shaft 104 and the horizontal baffle box 106 is provided with the perps 105, the baffle box 106,
Connection is mutually passed through in branch of drainning off floodwaters hole 107, the main hole 111 of flood discharge successively, the collection chamber 109 described in branch hole 107 along journey vertical connection that drains off floodwaters,
The top of collection chamber 109 connects the steam vent 108, and the level of transverse slat 110 is located at branch hole 107 and the collection of drainning off floodwaters
The joining place of air chamber 109.
The linkage section 101 connects with the volute chamber 103 in an inclined manner, with horizontal the span into inclination angle
For：10 °≤α≤50 °, the junction of volute chamber and vertical shaft uses passage reducing mode, and passage is from top to bottom from large to small.
The bottom of baffle box 106 is provided with cushion pool 112, the width of the baffle box 106 linearly increased to along journey with it is described
107 internal diameters of branch of drainning off floodwaters hole are consistent, and crest level flushes with branch hole 107 of drainning off floodwaters described thereafter, and bottom elevation is linearly reduced to along journey and institute
It is consistent to state the internal diameter of branch hole 107 that drains off floodwaters.
The perps 105 is a rectangular aperture, length-width-ratio 7.5.
The transverse slat 110 is vertically set on the inwall of collection chamber 109, and plate face is put down with the central shaft of branch hole 107 that drains off floodwaters
OK.
Embodiment described above only expresses preferred embodiment of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to the utility model patent scope.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, some deformations can also be made, improves and substitutes, this
Belong to the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should using appended claims as
It is accurate.
Claims (5)
1. energy dissipation by aeration and gas explosion-proof flood discharge device, it is characterised in that：Including linkage section（101）, passage（102）, volute chamber
（103）, vertical shaft（104）, perps（105）, baffle box（106）, branch of drainning off floodwaters hole（107）, steam vent（108）, collection chamber（109）、
Transverse slat（110）, the main hole of flood discharge（111）；The vertical shaft（104）Top connects the volute chamber（103）, the volute chamber（103）Top
Provided with the passage（102）, the volute chamber（103）Side connects the linkage section（101）, the vertical shaft（104）Bottom with
The horizontal baffle box（106）Mutually pass through connection, the vertical shaft（104）Bottom and the horizontal baffle box（106）Joining place set
There is the perps（105）, the baffle box（106）, branch of drainning off floodwaters hole（107）, the main hole of flood discharge（111）Connection is mutually passed through successively, it is described
Branch of drainning off floodwaters hole（107）Along collection chamber described in journey vertical connection（109）, the collection chamber（109）Top connects the steam vent
（108）, the transverse slat（110）Level is located at the branch hole of drainning off floodwaters（107）With the collection chamber（109）Joining place.
2. energy dissipation by aeration according to claim 1 and gas explosion-proof flood discharge device, it is characterised in that：The linkage section（101）
In an inclined manner with the volute chamber（103）Connection, the linkage section（101）It is with horizontal the span into inclination angle：10°
≤α≤50°。
3. energy dissipation by aeration according to claim 1 and gas explosion-proof flood discharge device, it is characterised in that：The vertical shaft（104）Bottom
Portion is provided with cushion pool（112）, the baffle box（106）Width linearly increased to along journey and the branch hole of drainning off floodwaters（107）Internal diameter one
Cause, crest level and the branch hole of drainning off floodwaters（107）Import is flushed, and bottom elevation is linearly reduced to and the branch hole of drainning off floodwaters along journey（107）
Internal diameter is consistent.
4. energy dissipation by aeration according to claim 1 and gas explosion-proof flood discharge device, it is characterised in that：The perps（105）For
One rectangular aperture.
5. energy dissipation by aeration according to claim 1 and gas explosion-proof flood discharge device, it is characterised in that：The transverse slat（110）Hang down
Directly it is arranged on the collection chamber（109）Inwall, plate bottom surface and the branch hole of drainning off floodwaters（107）Hole top flushes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720566938.9U CN206800344U (en) | 2017-05-22 | 2017-05-22 | Energy dissipation by aeration and gas explosion-proof flood discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720566938.9U CN206800344U (en) | 2017-05-22 | 2017-05-22 | Energy dissipation by aeration and gas explosion-proof flood discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206800344U true CN206800344U (en) | 2017-12-26 |
Family
ID=60740053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720566938.9U Active CN206800344U (en) | 2017-05-22 | 2017-05-22 | Energy dissipation by aeration and gas explosion-proof flood discharge device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206800344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857398A (en) * | 2022-05-10 | 2022-08-05 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | Device for reducing gas explosion strength of water storage cavern |
-
2017
- 2017-05-22 CN CN201720566938.9U patent/CN206800344U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857398A (en) * | 2022-05-10 | 2022-08-05 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | Device for reducing gas explosion strength of water storage cavern |
| CN114857398B (en) * | 2022-05-10 | 2024-04-09 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | Device for reducing gas explosion strength of water storage hole reservoir |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.158, Dongda Road, Fuzhou, Fujian 350000 Patentee after: Fujian Water Resources and Hydropower Survey, design and Research Institute Co.,Ltd. Address before: 350000 No. 158, Dongda Road, Fuzhou, Fujian Patentee before: FUJIAN PROVINCIAL INVESTIGATION DESIGN & Research Institute OF WATER CONSERVANCY AND HYDROPOWER |
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| CP03 | Change of name, title or address |