CN207419409U - A kind of siphon spillways startup structure - Google Patents
A kind of siphon spillways startup structure Download PDFInfo
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- CN207419409U CN207419409U CN201721558087.XU CN201721558087U CN207419409U CN 207419409 U CN207419409 U CN 207419409U CN 201721558087 U CN201721558087 U CN 201721558087U CN 207419409 U CN207419409 U CN 207419409U
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- pipeline
- siphon
- air inducing
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- spillways
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Abstract
The utility model discloses a kind of siphon spillways startup structures, belong to waterwork construction applications, to solve the problems, such as that the water level of existing siphon spillways startup siphonage requirement is higher.A kind of siphon spillways startup structure, including dam body, is provided with siphon piping in dam body, its port of export is provided with water seal in siphon piping；It further includes and is arranged at the in vivo air inducing pipeline in dam and pressure pipeline, the arrival end of the air inducing pipeline is connected with the middle part of siphon piping, and the port of export of air inducing pipeline is pierced by out of dam body；The arrival end of the pressure pipeline is connected with upper river, and the port of export of pressure pipeline is connected with the middle part of air inducing pipeline, and when pressure pipeline from the current of upper river by being drained in pressure air inducing pipeline, can generate swabbing action in the arrival end of air inducing pipeline；And then the gas inside siphon piping can be extracted out, certain vacuum degree is made it have, and then finally generates siphonage.
Description
Technical field
The utility model is related to waterwork construction applications more particularly to a kind of hydrocone type for power station checkdam to overflow
Big vast road startup structure.
Background technology
Siphon spillways are using siphon pipe principle, and by the equipment of atmospheric pressure flood discharge, having can be on smaller weir
Obtain larger vent flow under the head of top, without gate and can automatic flood discharge, it is automatic stop letting out, manage simplicity, structure relatively easy
The advantages that.But traditional siphon spillways, it is applicable in water level range and is limited, it is necessary to which upper river water level is higher than siphon piping
Elevation of weir crest when, siphonage could be generated in siphon piping；And siphonage upper river storehouse Shui Shui when stopping naturally
The terminal of position is usually then the water inlet elevation position of siphon piping, i.e., ought have air to enter from the arrival end of siphon piping
When in siphon piping；Therefore traditional siphon spillways are smaller to the adjustable range of upper river storehouse water.
Utility model content
The utility model solve the technical issues of be：Existing siphon spillways start the water level of siphonage requirement compared with
The problem of high.
Technical solution is used by the utility model solves its technical problem：A kind of siphon spillways startup structure,
Including dam body, siphon piping is provided in dam body, the arrival end of siphon piping is connected with upper river, the outlet of siphon piping
End is connected with downstream river course, its port of export is provided with water seal in siphon piping；It further includes and is arranged at the in vivo air inducing in dam
Pipeline and pressure pipeline, the arrival end of the air inducing pipeline are connected with the middle part of siphon piping, and the port of export of air inducing pipeline is from dam
It is pierced by vivo；The arrival end of the pressure pipeline is connected with upper river, the port of export of pressure pipeline and the middle part of air inducing pipeline
Connection, and when pressure pipeline from the current of upper river by being drained in pressure air inducing pipeline, it can be in the entrance of air inducing pipeline
End generates swabbing action.
It is further：The operating room connected with pedestrian's gallery is provided in dam body, control is provided on pressure pipeline
Valve processed, the control valve are located in operating room.
It is further：Nozzle is installed in the port of export of pressure pipeline.
It is further：The nozzle level is set, and the pipeline section in air inducing pipeline positioned at nozzle downstream is arranged for aqueous vapor
Go out pipeline section, the aqueous vapor discharge pipeline section is horizontally disposed with and its trend is consistent with the injection direction of nozzle.
It is further：The port of export of siphon piping is buried in below the water level in downstream river course.
It is further：The position of the port of export is provided with U-tube section in siphon piping.
It is further：The port of export of air inducing pipeline is pierced by from the downstream side of dam body.
It is further：Venthole is installed at camber arch at the top of the siphon piping, is provided at venthole switchable
The valve of the venthole.
The beneficial effects of the utility model are：A kind of siphon spillways startup structure described in the utility model,
On the basis of traditional siphon piping structure, increase and corresponding pressure pipeline and air inducing pipeline are set, can be incited somebody to action using pressure pipeline
Storehouse water in upper river is drained in air inducing pipeline under the effect of gravity, and then generates suction work in the arrival end of air inducing pipeline
With can extract the gas inside siphon piping out, make it have certain vacuum degree, and then finally generate siphonage.Therefore
The utility model may be implemented in upper river water level less than siphonage is generated in the case of elevation of weir crest, expands hydrocone type and overflows
The water level scope of application in big vast road improves using flexible, while can increase the adjusting section to storehouse water in upper river.
Description of the drawings
Fig. 1 is a kind of schematic diagram of siphon spillways startup structure described in the utility model；
In figure mark for：Siphon piping 1, venthole 2, pressure pipeline 3, air inducing pipeline 4, aqueous vapor discharge pipeline section 5, operating room
6th, control valve 7, nozzle 8, U-tube section 9.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawings and detailed description.
As shown in fig. 1, a kind of siphon spillways startup structure shown in the utility model, including dam body, in dam body
Siphon piping 1 is inside provided with, the arrival end of siphon piping 1 is connected with upper river, the port of export and downstream river course of siphon piping 1
Connection；Its port of export is provided with water seal in siphon piping 1；It further includes and is arranged at the in vivo air inducing pipeline 4 in dam and pressure
Pipeline 3, the arrival end of the air inducing pipeline 4 are connected with the middle part of siphon piping 1, and the port of export of air inducing pipeline 4 is worn out of dam body
Go out；The arrival end of the pressure pipeline 3 is connected with upper river, and the middle part of the port of export and air inducing pipeline 4 of pressure pipeline 3 connects
It is logical, and when pressure pipeline 3 from the current of upper river by being drained in pressure air inducing pipeline 4, it can be in the entrance of air inducing pipeline 4
End generates swabbing action.
Wherein, siphon piping 1 is for generating the agent structure of siphonage, being usually equipped with arch along its pipeline flow-direction
Bending tube section, the driving pipeline section that output swabbing action is provided in the downstream of bending tube section.It is set in the utility model by increasing
Corresponding air inducing pipeline 4 and pressure pipeline 3 are put, wherein pressure pipeline 3 is for the diversion from the water of upper river storehouse, utilizes current
Self gravitation effect generates water flow jet effect in the port of export of pressure pipeline 3, and then realizes and pumping is generated in air inducing pipeline 4
Suction acts on, and the gas at 1 middle part of siphon piping is extracted out；It is internal to produce after 1 internal gas of siphon piping is partly taken away
Raw corresponding vacuum degree, if the arrival end of siphon piping 1 and the port of export have water seal at this time, can absorb water at both ends；
And after the water suction of arrival end is more than the elevation of weir crest of siphon piping 1, i.e., reach certain vacuum degree inside siphon piping 1
When, siphonage can be generated, overflow is then carried out by the siphonage of siphon piping 1 afterwards.It is described in the utility model
Siphon spillways startup structure can be realized in upper river storehouse water water level in the case of less than 1 elevation of weir crest of siphon piping
Start the purpose of siphonage；Certainly, the precondition of siphonage necessarily upper river Ku Shui is started in the above process
Water level is higher than the water inlet elevation of the arrival end of siphon piping 1.
Wherein, pressure pipeline 3 and air inducing pipeline 4 can utilize the operation principle of venturi playpipe；Specifically it can refer to attached drawing 1
Shown in, from the current that the port of export of pressure pipeline 3 ejects will carry air inducing pipeline 4 in air going out from air inducing pipeline 4
The discharge of mouth end forms swabbing action so that the air in siphon piping 1 to be extracted out with this.More specifically, in order to improve pressure pipeline 3
The port of export water flow jet effect, further also 8 structure of nozzle can be installed in the port of export of pressure pipeline 3.In addition, pressure
Elevation where the port of export of pipeline 3 should have larger drop with upper river storehouse water water level, to generate the injection water of enough speed
Stream；And the arrival end of air inducing pipeline 4 should then be connected with the middle part appropriate location of siphon piping 1, siphon piping 1 can be extracted out as far as possible
Internal more air, and generate enough vacuum degrees.
In addition, referring to the drawings shown in 1, it, can be by nozzle in order to ensure to form preferable jeting effect in the downstream of nozzle 8
8 is horizontally disposed, and the pipeline section in air inducing pipeline 4 positioned at 8 downstream of nozzle discharges pipeline section 5 for aqueous vapor, and the aqueous vapor discharges pipeline section 5
Horizontally disposed and its trend is consistent with the injection direction of nozzle 8；I.e. from nozzle 8 spray high-velocity flow will carry air after through water
It is discharged after gas discharge pipeline section 5 from the port of export of air inducing pipeline 4.Without loss of generality, the port of export of air inducing pipeline 4 usually can be from dam body
Downstream side be pierced by.
In addition, in order to ensure to form corresponding siphonage in siphon piping 1, by 4 institute of pressure pipeline 3 and air inducing pipeline
The swabbing action of generation, the elevation that the suction force generated needs to meet after at least upper river Ku Shui can be picked up are higher than siphon
The elevation of weir crest of pipeline 1.
In addition, in order to realize the switch control to pressure pipeline 3, it can further be provided in dam body and connect with pedestrian's gallery
Logical operating room 6, is provided with control valve 7 on pressure pipeline 3, and the control valve 7 is located in operating room 6.Wherein pedestrian's gallery
It is conventional arrangement in being used for the passage that passes through of personnel in dam body；In this way, the switch control to control valve 7 in operating room 6 can be passed through
System realizes the switch control to pressure pipeline 3, and then realizes and start control to the siphonage of siphon piping 1.
In order to avoid entering when pressure pipeline 3 and air inducing pipeline 4 are generating swabbing action from the port of export of siphon piping 1
Air close to its port of export in siphon piping 1, it is necessary to be provided with water seal.The specific water seal at least can be by the following two kinds side
Formula is realized：The first, the port of export of siphon piping 1 is buried in below the water level in downstream river course, so directly utilize downstream
Water in river is as its water seal；Secondth, the position of the port of export is provided with U-tube section 9 in siphon piping 1, by U
In shape pipeline section 9 water seal can be formed after the enough water of storage.It certainly, without loss of generality, also can be in siphon piping 1 close to its outlet
End is provided with the structure similar with water seal effect, such as sets check valve, control valve structure.
Above-mentioned siphon spillways startup structure described in the utility model is produced by pressure pipeline 3 and air inducing pipeline 4
Raw swabbing action can be opened when upper river storehouse water water level is located between the elevation of weir crest of siphon piping 1 and water inlet elevation
Dynamic siphonage.And in order to be further implemented in above-mentioned water level under the conditions of, can active control rainbow after siphonage is had been turned on
The stopping of suction effect, is further installed with venthole 2, being provided at venthole 2 can open at 1 top camber arch of siphon piping
The valve of the venthole 2 is closed, as shown in Figure 1.Venthole 2 can directly be opened in the dam body at 1 top camber arch of siphon piping
It is interior, and be pierced by from dam body surface or can also bury corresponding vent line.In this way, working as siphon has been formed in siphon piping 1
After effect, siphonage can be stopped by introducing air into siphon piping 1 by only needing to open the valve at venthole 2
Only.Without loss of generality, when being provided with venthole 2, need to close the valve at venthole 2 during siphonage is started
Door.
Claims (8)
1. a kind of siphon spillways startup structure including dam body, is provided with siphon piping (1), siphon piping (1) in dam body
Arrival end connected with upper river, the port of export of siphon piping (1) is connected with downstream river course, it is characterised in that：In siphon pipe
Its port of export is provided with water seal in road (1)；It further includes and is arranged at the in vivo air inducing pipeline in dam (4) and pressure pipeline (3), institute
The arrival end for stating air inducing pipeline (4) is connected with the middle part of siphon piping (1), and the port of export of air inducing pipeline (4) is pierced by out of dam body；
The arrival end of the pressure pipeline (3) is connected with upper river, the port of export of pressure pipeline (3) and the middle part of air inducing pipeline (4)
Connection, and when pressure pipeline (3) will be drained to from the current of upper river and press air inducing pipeline (4) interior, it can be in air inducing pipeline
(4) arrival end generates swabbing action.
2. a kind of siphon spillways startup structure as described in claim 1, it is characterised in that：It is provided in dam body and row
The operating room (6) of people's gallery connection, is provided with control valve (7), the control valve (7) is located at operating room on pressure pipeline (3)
(6) in.
3. a kind of siphon spillways startup structure as described in claim 1, it is characterised in that：In going out for pressure pipeline (3)
Mouth end is equipped with nozzle (8).
4. a kind of siphon spillways startup structure as claimed in claim 3, it is characterised in that：Nozzle (8) level is set
It puts, and the pipeline section in air inducing pipeline (4) positioned at nozzle (8) downstream discharges pipeline section (5) for aqueous vapor, and the aqueous vapor discharges pipeline section
(5) it is horizontally disposed with and its trend is consistent with the injection direction of nozzle (8).
5. a kind of siphon spillways startup structure as described in claim 1, it is characterised in that：The outlet of siphon piping (1)
End is buried in below the water level in downstream river course.
6. a kind of siphon spillways startup structure as described in claim 1, it is characterised in that：It is close in siphon piping (1)
The position of the port of export is provided with U-tube section (9).
7. a kind of siphon spillways startup structure as described in claim 1, it is characterised in that：The outlet of air inducing pipeline (4)
End is pierced by from the downstream side of dam body.
8. a kind of siphon spillways startup structure as claimed in any of claims 1 to 7 in one of claims, it is characterised in that：In rainbow
Venthole (2) is installed at camber arch at the top of suction pipe road (1), the valve of the switchable venthole (2) is provided at venthole (2)
Door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721558087.XU CN207419409U (en) | 2017-11-20 | 2017-11-20 | A kind of siphon spillways startup structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721558087.XU CN207419409U (en) | 2017-11-20 | 2017-11-20 | A kind of siphon spillways startup structure |
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| Publication Number | Publication Date |
|---|---|
| CN207419409U true CN207419409U (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721558087.XU Active CN207419409U (en) | 2017-11-20 | 2017-11-20 | A kind of siphon spillways startup structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368806A (en) * | 2018-12-12 | 2019-02-22 | 福州水研环境科技有限公司 | A kind of biological treating water body method using water body siphoning installation |
-
2017
- 2017-11-20 CN CN201721558087.XU patent/CN207419409U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368806A (en) * | 2018-12-12 | 2019-02-22 | 福州水研环境科技有限公司 | A kind of biological treating water body method using water body siphoning installation |
| CN109368806B (en) * | 2018-12-12 | 2024-04-26 | 福州水研环境科技有限公司 | Biological water treatment method by utilizing water siphon device |
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