CN208024993U - Flat section is flow automatically water-bound under a kind of pressure pipeline - Google Patents
Flat section is flow automatically water-bound under a kind of pressure pipeline Download PDFInfo
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- CN208024993U CN208024993U CN201820469428.4U CN201820469428U CN208024993U CN 208024993 U CN208024993 U CN 208024993U CN 201820469428 U CN201820469428 U CN 201820469428U CN 208024993 U CN208024993 U CN 208024993U
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Abstract
The utility model discloses flat section gravity flow water-bounds under a kind of pressure pipeline, are related to hydraulic and hydroelectric engineering field, solve the problem of that the integrality that existing pressure pipeline discharge structure destroys plate-steel liner causes extra quantities and security risk.The technical solution of the utility model is：Flat section gravity flow water-bound under pressure pipeline, including supervisor, bifurcated pipe and branch pipe, the outlet of supervisor is arranged at least one bifurcated pipe and forms at least two branch pipes, the caliber of each branch pipe is smaller than the caliber of supervisor, the center line of each branch pipe is parallel to each other, supervisor is different with the gradient of branch pipe, and the center line of supervisor, bifurcated pipe and branch pipe are respectively positioned on same tapered plane.When pressure pipeline emptying maintenance, flow gravity flow is flowed out from the workshop unit in branch pipe downstream, largely reduces pipeline internal water accumulation, convenient to overhaul.Total is not necessarily to the tube wall of breakdown pressure pipeline, also need not in addition design discharge structure, not need secondary construction, avoid causing extra quantities and security risk.
Description
Technical field
The utility model is related to hydraulic and hydroelectric engineering field, flat section gravity flow water-bound under especially a kind of pressure pipeline.
Background technology
In hydraulic and hydroelectric engineering, diversion penstock is the necessary building of diversion and power.Long diversion penstock is general
By the way of a pipe multimachine, frequently include flat section, vertical shaft (or inclined shaft) and lower flat section, wherein under flat section generally by supervisor,
Bifurcated pipe and branch pipe composition.In order to ensure that hydraulics and structure are smooth, branch pipe is more bigger than supervisor's flow velocity, and branch diameter is than supervisor's caliber
It is small.
Since structure design needs, the supervisor of lower flat section and branch tube hub line are generally aligned in the same plane.Existing design is in order to set
It calculates and easy for construction, flat section center line is horizontal under consideration, i.e., supervisor and branch tube hub line are located at same level.Due to branch
Pipe caliber is smaller than supervisor's caliber, and branch pipe wall low side relatively supervisor's tube wall low side is higher by more, can cause stress the big face of duct bottom
Long-pending ponding, no to naturally drain, when pressure pipeline emptying is overhauled, ponding is made troubles to maintenance.
Notification number is that the patent of CN 206736874U discloses a kind of pressure pipeline steel lining section discharge structure, pressure pipeline
Osculum is set in the plate-steel liner of flat section down, drainpipe is connected at osculum, drainpipe is arranged along the downstream side of pressure pipeline,
Drainpipe can drain the ponding of pressure pipeline bottom.Drainpipe solves the problems, such as pressure pipeline bottom ponding, but needs
Trepanning and drainpipe is installed in the plate-steel liner of flat section down, destroys the integrality of plate-steel liner, hydropower station pressure pipeline is ground
Lower pipe laying, drainpipe are not easy to construct, and cause extra quantities and security risk.
Utility model content
Flat section gravity flow water-bound, it is broken to solve existing pressure pipeline discharge structure under a kind of pressure pipeline of the utility model offer
It is broken the integrality of plate-steel liner, drainpipe is not easy to construct, the problem of causing extra quantities and security risk.
Technical solution adopted by the utility model to solve its technical problems is：Flat section artesian water knot under a kind of pressure pipeline
The outlet of structure, including supervisor, bifurcated pipe and branch pipe, supervisor is arranged at least one bifurcated pipe and forms at least two branch pipes, each branch pipe
Caliber it is smaller than the caliber of supervisor, the center line of each branch pipe is parallel to each other, supervisor and branch pipe be located at different gradient
On axis, the center line of supervisor, bifurcated pipe and branch pipe are respectively positioned on same tapered plane.
Specifically, the gradient of the tapered plane is 3%~6%.
Specifically, the bifurcated pipe includes Y-shaped bifurcated pipe and shape of BU bifurcated pipe, branch pipe includes the first branch pipe, the second branch pipe and the
Three branch pipes；The outlet end of supervisor connects a Y-shaped bifurcated pipe, and the Liang Ge branches of Y-shaped bifurcated pipe are asymmetric, and the one of Y-shaped bifurcated pipe
A branch connects the first branch pipe, another branch connection time branch pipe of Y-shaped bifurcated pipe, and secondary branch pipe connects a shape of BU bifurcated pipe, foretells word
The Liang Ge branches of shape bifurcated pipe are separately connected the second branch pipe and third branch pipe.
Specifically, the gradient of the supervisor is i=4.16784235%, the gradient of secondary branch pipe is i=2.49765962%,
The gradient of first branch pipe, the second branch pipe and third branch pipe is i=5%.
The utility model has the beneficial effects that：Flat section is provided entirely on tapered plane under pressure pipeline, pressure pipeline emptying
When maintenance, flow gravity flow is flowed out from the workshop unit in branch pipe downstream, largely reduces pipeline internal water accumulation, convenient to overhaul.And
And total is not necessarily to the tube wall of breakdown pressure pipeline, also need not in addition design discharge structure, not need secondary construction, keep away
Exempt to cause extra quantities and security risk.
Description of the drawings
Fig. 1 is the schematic diagram of flat section gravity flow water-bound under the utility model pressure pipeline.
Parts, position and number in figure：Supervisor 1, Y-shaped bifurcated pipe 21, shape of BU bifurcated pipe 22, the first branch pipe 31, second
Pipe 32, third branch pipe 33, secondary branch pipe 4.
Specific implementation mode
Some hydropower station use co-supplying mode, pressure pipeline from top to bottom sequentially by upper flat section, 1# vertical shafts section, in put down
Section, 2# vertical shafts section and lower flat section composition.Pressure pipeline is responsible for internal diameter 4.4m, wherein upper flat segment length 125m, 1# vertical shafts and linkage section
Long 119m, in flat segment length 76m, 2# vertical shafts and connection segment length 167m, lower flat segment length 180m.Flat section uses the utility model under wherein
Flat section gravity flow water-bound under pressure pipeline.The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, flat section gravity flow water-bound under the utility model pressure pipeline, including supervisor 1, bifurcated pipe and branch pipe, it is main
Pipe 1 is one, and at least one bifurcated pipe and formation at least two branch pipes are arranged in the outlet for being responsible for 1, to adapt to the power generation of a pipe multimachine
Mode.Caliber of the caliber of each branch pipe than supervisor 1 is small, and the end of each branch pipe connects with workshop ball valve, each branch pipe
Center line is parallel to each other, and supervisor 1 and branch pipe are located on the axis of different gradient, and the center line of supervisor 1, bifurcated pipe and branch pipe are equal
Positioned at same tapered plane.The gradient of tapered plane is 3%~6%, for example, 5%.Flat section is provided entirely in tiltedly flat under pressure pipeline
On face, flow gravity flow is facilitated to be flowed out from workshop unit, largely reduces pipeline internal water accumulation, it is convenient to overhaul.
Such as Fig. 1, wherein bifurcated pipe includes Y-shaped bifurcated pipe 21 and shape of BU bifurcated pipe 22, and branch pipe includes the first branch pipe 31, second
Pipe 32 and third branch pipe 33.The outlet end of supervisor 1 connects a Y-shaped bifurcated pipe 21, and the Liang Ge branches of Y-shaped bifurcated pipe 21 are not right
Claim, a branch of Y-shaped bifurcated pipe 21 is directly connected to the first branch pipe 31, another branch connection time branch pipe 4 of Y-shaped bifurcated pipe 21.
The outlet of secondary branch pipe 4 connection shape of BU bifurcated pipe 22, the Liang Ge branches of shape of BU bifurcated pipe 22 are separately connected the second branch pipe 32 and third branch pipe
33.The gradient of supervisor 1, bifurcated pipe and tapered plane where branch pipe are 5%, and the gradient for being responsible for 1 is i=4.16784235%, secondary branch pipe 4
The gradient be i=2.49765962%, the gradient of the first branch pipe 31, the second branch pipe 32 and third branch pipe 33 is i=5%.The
The length of one branch pipe 31 is 35m, and the length of the second branch pipe 32 is 28m, and the length of third branch pipe 33 is 35m.Y-shaped bifurcated pipe 21 is most
Major diameter 4.88m, 22 maximum gauge 4.08m of shape of BU bifurcated pipe.It is responsible for dimensional parameters such as Fig. 1 of 1, bifurcated pipe, secondary branch pipe 4 and branch pipe
It is shown.Bifurcated pipe and 1 diameter of supervisor are bigger than the diameter of branch pipe, and branch pipe end is connect with workshop ball valve, and branch pipe diameter further becomes smaller,
The Diameter Gradual Change of branch pipe end is to 1.50m.
Flat section is arranged on the tapered plane that a gradient is 5% under pressure pipeline, the supervisor 1 of pressure pipeline and time branch pipe 4
The angle of gradient calculating formula of axis be：Wherein a1For the tapered plane angle of gradient, a2For calculative axis slope
Spend angle, a3For the angle of calculative axis and branch pipe on tapered plane.In the present embodiment, where supervisor 1, bifurcated pipe and branch pipe tiltedly
The gradient of plane is 5%, and the gradient for being responsible for 1 is i=4.16784235%, and 4 gradient of secondary branch pipe is i=2.49765962%, branch
The pipe gradient is tapered plane gradient i=5%.
Claims (4)
1. flat section is flow automatically water-bound, including supervisor (1), bifurcated pipe and branch pipe under a kind of pressure pipeline, the outlet of supervisor (1) be arranged to
A few bifurcated pipe simultaneously forms at least two branch pipes, and the caliber of the caliber of each branch pipe than supervisor (1) is small, it is characterised in that：Respectively
The center line of branch pipe is parallel to each other, and supervisor (1) and branch pipe are located on the axis of different gradient, is responsible for (1), bifurcated pipe and branch
The center line of pipe is respectively positioned on same tapered plane.
2. flat section gravity flow water-bound under pressure pipeline as described in claim 1, it is characterised in that：The gradient of the tapered plane is
3%~6%.
3. flat section gravity flow water-bound under pressure pipeline as claimed in claim 1 or 2, it is characterised in that：The bifurcated pipe includes Y words
Shape bifurcated pipe (21) and shape of BU bifurcated pipe (22), branch pipe include the first branch pipe (31), the second branch pipe (32) and third branch pipe (33)；It is main
The outlet end for managing (1) connects a Y-shaped bifurcated pipe (21), and the Liang Ge branches of Y-shaped bifurcated pipe (21) are asymmetric, Y-shaped bifurcated pipe
(21) a branch connects the first branch pipe (11), another branch connection time branch pipe (4) of Y-shaped bifurcated pipe (21), secondary branch pipe (4)
A shape of BU bifurcated pipe (22) is connected, the Liang Ge branches of shape of BU bifurcated pipe (22) are separately connected the second branch pipe (32) and third branch pipe
(33)。
4. flat section gravity flow water-bound under pressure pipeline as claimed in claim 3, it is characterised in that：The gradient of the supervisor (1)
The gradient for i=4.16784235%, secondary branch pipe (4) is i=2.49765962%, the first branch pipe (31), the second branch pipe (32)
The gradient with third branch pipe (33) is i=5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820469428.4U CN208024993U (en) | 2018-03-30 | 2018-03-30 | Flat section is flow automatically water-bound under a kind of pressure pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820469428.4U CN208024993U (en) | 2018-03-30 | 2018-03-30 | Flat section is flow automatically water-bound under a kind of pressure pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208024993U true CN208024993U (en) | 2018-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820469428.4U Active CN208024993U (en) | 2018-03-30 | 2018-03-30 | Flat section is flow automatically water-bound under a kind of pressure pipeline |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208692A (en) * | 2018-11-02 | 2019-01-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Water intake and discharge device for reservoir |
| CN112199878A (en) * | 2020-10-22 | 2021-01-08 | 长江勘测规划设计研究有限责任公司 | Design method of symmetrical beam type three-section steel branch pipe |
-
2018
- 2018-03-30 CN CN201820469428.4U patent/CN208024993U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208692A (en) * | 2018-11-02 | 2019-01-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Water intake and discharge device for reservoir |
| CN109208692B (en) * | 2018-11-02 | 2024-01-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Reservoir water taking and draining device |
| CN112199878A (en) * | 2020-10-22 | 2021-01-08 | 长江勘测规划设计研究有限责任公司 | Design method of symmetrical beam type three-section steel branch pipe |
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