CN109537534A - A kind of plane emergency gate - Google Patents
A kind of plane emergency gate Download PDFInfo
- Publication number
- CN109537534A CN109537534A CN201811366482.7A CN201811366482A CN109537534A CN 109537534 A CN109537534 A CN 109537534A CN 201811366482 A CN201811366482 A CN 201811366482A CN 109537534 A CN109537534 A CN 109537534A
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- Prior art keywords
- gate
- plate
- emergency
- emergency gate
- leading edge
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/22—Stop log dams; Emergency gates
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Barrages (AREA)
Abstract
The invention discloses a kind of plane emergency gates, using slidably supported pattern, it is installed on emergency gate gate slot, two sides are water inlet passage side wall in front of emergency gate gate slot, emergency gate gate slot bottom is water inlet passage bottom plate, emergency gate includes the upstream face plate and downstream panel for being set to front and rear sides, and door leaf stringer and door leaf crossbeam are provided between upstream face plate and downstream panel, and front and back panel delivery position is connected with each other by connecting cross beam；The top of emergency gate is equipped with lifting lug, two sides are equipped with the sliding block that bearing emergency gate slides up and down in gate slot, the bottom of upstream face plate is fixedly connected with the leading edge plate parallel with water inlet passage bottom plate, the front end of leading edge plate is equipped with the convex block being in contact with water inlet passage bottom plate, is also connected with floor of putting more energy between the front end and upstream face plate of leading edge plate.The present invention recloses vertical water pressure suffered by the plane emergency gate of door using water by increasing, and gate is promoted smoothly to close.
Description
Technical field
The invention belongs to hydraulic and hydroelectric engineering field of steel structure, and in particular to a kind of plane emergency gate；Conducive to sliding branch
Peaceful face emergency gate smoothly closes the new figure of door in dynamic water, and the plane emergency gate for solving to reclose door using water is in dynamic water
Because close power it is insufficient due to fall Practical Project problem not in place.
Background technique
With the construction of high basin dam, plane gate is because structure is relatively simple, operation operation is convenient and reliable, to building
Arrangement is also easier to the characteristics of cooperation, is applied in hydraulic engineering as emergency gate more and more widely.However, due to Gao Shui
Can the influence of head, big vent flow, plate emergency gate normal switching-off and its hydrodynamic force during the shutdown process in dynamic water
Characteristic is always focal issue of interest in gate design and utilization.In practical projects, door is depended alone when often discovery is closed
The phenomenon that leaf self weight is not enough to overcome frictional force, hinders, or even can not completely close so that plane emergency gate be caused to close badge, sternly
Unit and upstream and downstream safety are endangered again.
In the design of plane gate hoisting capacity, when gate closes a power deficiency, often depend upon using weight, by water
Column pressure directly forces gate decline as ballast by opening and closing device.While increasing gate by increasing counterweight and close power,
Strength needed for opening door is also increase accordingly, thus this mode is limited by the structural bearing capacities such as headstock gear capacity and work bridge
It is larger, it need to can implement through checking in the case where meeting the requirements.Using the side for closing power as ballast increase by opening and closing device
Formula is unsuitable for winch hoist suitable for fluid pressure type opening and closing device and the worm-type open-close machine of small-sized culverts and water gates, therefore it is suitable
There is biggish limitation with range.In summary condition should be paid the utmost attention to using " self weight Xiamen " or " self weight add water post pressure
Power " increase gate closes power.However, common close the plane emergency gate of door during dynamic water closes door using water column, with
Horizontal thrust suffered by the increases gate of vertical water pressure be also significantly increased, gate self weight adds water weight when often resulting in small guide vane
Be not enough to frictional force caused by overcoming horizontal thrust, lead to problems such as gate close badge resistance, fall it is not in place.
Summary of the invention
Purpose of the invention is to overcome the shortcomings in the prior art, one kind is provided in dynamic water, by further increasing
Plane emergency gate that is big to reclose vertical water pressure suffered by the plane emergency gate of door using water, promoting gate smoothly to close；With
To solve emergency gate during dynamic water closes door, because again self weight plus water are not enough to close badge caused by overcoming frictional force
Resistance, gate fall the Practical Projects problem such as not in place.Meanwhile for the plane emergency gate for operation of having constructed in engineering, Neng Gou
Self structure is changed in lesser situation, and the vertical water pressure acted on gate is significantly increased, and gate is promoted smoothly to close.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of plane emergency gate is installed on emergency gate gate slot, emergency gate gate slot front using slidably supported pattern
Two sides are water inlet passage side wall, and emergency gate gate slot bottom is water inlet passage bottom plate, and the emergency gate includes being set to
The upstream face plate and downstream panel of front and rear sides, are provided with door leaf stringer and door leaf crossbeam between upstream face plate and downstream panel,
Front and back panel delivery position is connected with each other by connecting cross beam；The top of emergency gate is equipped with lifting lug, and two sides are equipped with bearing accident
The sliding block that gate slides up and down in gate slot, the bottom of the upstream face plate are fixedly connected with flat with the water inlet passage bottom plate
Capable leading edge plate, the front end of the leading edge plate are equipped with the convex block being in contact with water inlet passage bottom plate, the leading edge plate
Front end and upstream face plate between be also connected with floor of putting more energy into.
Further, the bottom of the convex block is provided with the water stop spacer of silica gel material.
Further, the gate root edge of the emergency gate is equipped with root edge permeable hole.
Further, between the upstream face plate and the leading edge plate using welding, riveting or by hydraulic controller into
The hinge connection type of row control.
Compared with prior art, the beneficial effects brought by the technical solution of the present invention are as follows:
1, the present invention is that the plane emergency gate of door is closed using water column, can be without passing through under conditions of increasing counterweight
The vertical force acted on gate is significantly increased in bodily form optimization, to achieve the effect that emergency gate is promoted smoothly to close.Flat
Face gate upstream face plate, that is, fluoran stream surface is additionally arranged at the bottom of the leading edge plate parallel with runner, when gatage is larger, leading edge plate
Upper and lower surfaces flow action condition is similar, and acting head is related to upstream water level, for gate whereabouts provide it is lesser vertical
Water pressure.With the closing of gate, the area of aperture overcurrent reduces, and lockage flow rate of water flow increases, and according to bernoulli principle, works as lock
Door aperture is smaller, when the high speed overcurrent of leading edge plate lower surface, corresponding pressure with regard to smaller, and upper surface water pressure still with upper water
Position is related, and greatly, there are biggish head differences for upper and lower surfaces overcurrent condition difference, and therefore, when small guide vane acts on leading edge plate
On vertical water pressure be significantly increased, provide part for the whereabouts of gate and close power.Using differential water pressures suffered by leading edge plate, reach
To the vertical water pressure in part is increased under identical operating condition, promote the effect of gate whereabouts.
2, plane emergency gate of the present invention adds the mode of convex block in leading edge plate front underside, it is close to change gate
The streamline form in full pocket floor when closing makes its upper and lower surface there are still larger differential water pressures, and inflow-rate of water turbine is smaller under lock, leading edge plate and stream
Lower pressure can not be generated between road, by thickening leading edge lower surface end, when gate small guide vane changes local flow field, makes under lock
Streamline separation, to create low-pressure area, to solve when gate close to when closing entirely, the vertical water pressure of leading edge plate is drastically reduced, nothing
The problem of power is closed in method offer enough guarantees that newly-increased leading edge plate can play a role during the entire process of gate falls,
Achieve the effect that gate completely closes in dynamic water.
3, the present invention is smaller to the emergency gate structural modification for operation of having constructed in engineering, has that structure is simple, is easy to grasp
Make, the features such as function and effect are obvious.
4, convex block lower surface is covered with one layer of silica gel water stop spacer, it is ensured that convex block both met while having certain rigidity
It is unlikely to deform under high-velocity flow effect, and can guarantee and will not destroy runner bottom plate when gate completely closes.
5, the connection type between upstream face plate and leading edge plate can be welding, riveting or be carried out by hydraulic controller
The hinge of control connects, it is contemplated that when emergency gate slot width is enough or the sudden expansion position of gate slot is able to satisfy leading edge size, uses
Welding, riveting, both modes have the characteristics that easy to operate, structural integrity is good；When gate slot width is smaller, leading edge plate
Hinge can be used between gate upstream face plate to connect, and the closure angle for cooperating hydraulic controller to carry out leading edge plate controls.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of plane emergency gate of the present invention.
Fig. 2 be in Fig. 1 A-A to schematic cross-sectional view.
Fig. 3 is the schematic cross-sectional view of B-B direction in Fig. 1.
Fig. 4 be in Fig. 1 C-C to schematic cross-sectional view.
Fig. 5 is leading edge plate lower surface end schematic cross-sectional view.
Fig. 6 closes a lasting force conversion process schematic diagram for former gate figure and using the dynamic water after gate figure of the present invention,
The lasting force the big, and what gate had when falling closes that Men Liyue is big, so that easier guarantee gate completely closing in dynamic water.
Fig. 7-1 and Fig. 7-2 is respectively that the dynamic water of gate closes during door, optimizes forward and backward leading edge plate lower surface time average pressare
Situation of change, time average pressare then illustrate there is negative pressure generation lower than downstream head line, acts on up-front water pressure increase, thus
It is accordingly bigger that gate had closes power.
Appended drawing reference: 1- lifting lug；2- sliding block；3- door leaf stringer；4- door leaf crossbeam；5- connecting cross beam；6- upstream face plate；7-
Leading edge plate；8- convex block；The downstream 9- panel；10- puts more energy into floor；11- gate root edge；12- water inlet passage bottom plate；13- accident
Gate recess；14- water inlet passage side wall；15- root edge permeable hole；16- water stop spacer；
Specific embodiment
The invention will be further described with reference to the accompanying drawing.
As shown in Figures 1 to 5, a kind of plane emergency gate is installed on emergency gate gate slot using slidably supported pattern
13,13 front two sides of emergency gate gate slot are water inlet passage side wall 14, and 13 bottom of emergency gate gate slot is water inlet passage bottom
Plate 12, emergency gate include the upstream face plate 6 and downstream panel 9 for being set to front and rear sides, upstream face plate 6 and downstream panel 9 it
Between be provided with door leaf stringer 3 and door leaf crossbeam 4, the connecting cross beam 5 of 9 delivery position of upstream face plate 6 and downstream panel focuses on for water
Main function position on gate.The top of emergency gate is equipped with lifting lug 1, and two sides, which are equipped with, supports the emergency gate in gate slot
The sliding block 2 slided up and down, the bottom of upstream face plate 6 are fixedly connected with the leading edge plate 7 parallel with inlet flow channel bottom plate 12, leading edge
The front end of plate 7 is equipped with the convex block 8 being in contact with water inlet passage bottom plate 12, and the bottom of convex block 8 is provided with stopping for silica gel material
Water cushion piece 16 is also connected with floor 10 of putting more energy between the front end and upstream face plate 6 of leading edge plate 7.The gate root edge 1 of emergency gate
It is equipped with root edge permeable hole 15.
Further, welding, riveting also can be used between the upstream face plate and the leading edge plate or by hydraulic control
The hinge connection type that device is controlled.
Specifically, the plane gate upstream face plate 6 and downstream panel 9 are located at the upstream and downstream two sides of water flow, upstream face
It is connected between plate 6 and downstream panel 9 by connecting cross beam 5, it is vertical that there are biggish water-heads for 5 upper and lower surfaces of connecting cross beam
Main function position of the water pressure on former gate figure.Leading edge plate 7 is located at the bottom of upstream face plate 6,7 width of leading edge plate
It being determined according to water inlet passage side wall 14, the gradient is parallel with water inlet passage bottom plate 12, it is welded and fixed with upstream face plate 6,
And it is reinforced using floor 10 of putting more energy into.Convex block 8 is located at the lower surface end of leading edge plate 7, to prevent it from closing completely in gate
It contacts and damages with water inlet passage bottom plate 12 when closing, convex block 8 is surface-treated using water stop spacer 16.It is exerted according to uncle
Sharp principle, when gate small guide vane, the upper and lower surfaces overcurrent condition difference of leading edge plate 7 is larger, forms differential water pressures to be lock
The whereabouts of door provides part and closes power.When the close full pass of gate, found by model test, the function and effect of leading edge plate 7
It is decreased obviously, leading edge plate 7 is optimized using convex block 8, high-velocity flow generates streamline separation at convex block 8, thus before making
There are still biggish differential water pressures for the upper and lower surfaces of listrium block 7, ensure that leading edge plate 7 during the entire process of closing gate
It can play a role.For the increased vertical effect of water pressure of gate dropping process institute in leading edge plate 7, convex block 8 is leading edge in the present invention
The Optimized Measures of plate 7, can be by adjusting leading edge in implementation process since the stress of gate is very sensitive to the variation of flow
The size of plate 7 and convex block 8 reaches the optimum combination mode suitable for gate slot structure, guarantees that gate closes power and is being no more than opening and closing
Under the premise of place capacity, leading edge plate can provide larger vertical water pressure, so that emergency gate be promoted to close completely in dynamic water
It closes.
For parameter is embodied, unit water inlet plane emergency gate high 13.8m, wide 5.88m work as upstream water level
2760.0m, level of tail water 2721.527m, when guide vane opening is 40%, gate is fallen in the case where moving in water apart from the position bottom sill 1.5m
Shi Wufa continues to close, and using plane gate figure of the present invention, increases the vertical water pressure acted on gate, provides part and closes
Men Li.According to runner and gate slot shape, the maximal projection width for designing leading edge plate is the width at emergency gate gate slot sudden expansion position
0.95m is spent, maximum length is width of flow path 4.93m, therefore the design projection size width finally chosen is 0.84m, and length is
4.8m is welded and fixed with upstream face plate, and using triangle put more energy into floor carry out consolidation process.
It is upstream and downstream water-head 38.473m that operating condition is chosen in test, and unit guide vane opening is 40%, is tried by physical model
It tests, common gate figure and gate figure of the invention lasting force during dynamic water closes door that door is reclosed using water measured
Situation of change is as shown in Figure 6, the results showed that under identical operating condition, figure of the present invention can increasing action in the vertical water on gate
Pressure provides part and closes power.To guarantee that gate leading edge plate when close to complete close remains to play a role, optimization choosing of the invention
Long 4.8m, wide 6cm have been taken, the convex block of thick 9cm (thickness including silica gel water stop spacer) is fixed on leading edge plate lower surface end,
Before optimization with leading edge plate lower surface water pressure situation after optimization as shown in Fig. 7-1 and Fig. 7-2, the increase for as a result showing convex block makes
, there is the negative pressure lower than the level of tail water, illustrate that Optimized Measures can guarantee leading edge in the separation of leading edge lower surface streamline, when small guide vane
Plate plays a role at the close full pass of gate.
The present invention is not limited to embodiments described above.Above the description of specific embodiment is intended to describe and say
Bright technical solution of the present invention, the above mentioned embodiment is only schematical, is not restrictive.This is not being departed from
In the case of invention objective and scope of the claimed protection, those skilled in the art may be used also under the inspiration of the present invention
The specific transformation of many forms is made, within these are all belonged to the scope of protection of the present invention.
Claims (4)
1. a kind of plane emergency gate is installed on emergency gate gate slot, emergency gate gate slot front two using slidably supported pattern
Side is water inlet passage side wall, and emergency gate gate slot bottom is water inlet passage bottom plate, which is characterized in that the emergency gate packet
The upstream face plate for being set to front and rear sides and downstream panel are included, door leaf stringer and door are provided between upstream face plate and downstream panel
Page crossbeam, front and back panel delivery position are connected with each other by connecting cross beam；The top of emergency gate is equipped with lifting lug, and two sides are equipped with branch
The sliding block that emergency gate slides up and down in gate slot is held, the bottom of the upstream face plate is fixedly connected with and the water inlet passage
The parallel leading edge plate of bottom plate, the front end of the leading edge plate is equipped with the convex block being in contact with water inlet passage bottom plate, before described
Floor of putting more energy into also is connected between the front end and upstream face plate of listrium block.
2. a kind of plane emergency gate according to claim 1, which is characterized in that the bottom of the convex block is provided with silica gel material
The water stop spacer of matter.
3. a kind of plane emergency gate according to claim 1, which is characterized in that set on the gate root edge of the emergency gate
There is root edge permeable hole.
4. a kind of plane emergency gate according to claim 1, which is characterized in that the upstream face plate and the leading edge plate
Between using welding, riveting or the hinge connection type that is controlled by hydraulic controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811366482.7A CN109537534B (en) | 2018-11-16 | 2018-11-16 | Plane accident gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811366482.7A CN109537534B (en) | 2018-11-16 | 2018-11-16 | Plane accident gate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109537534A true CN109537534A (en) | 2019-03-29 |
| CN109537534B CN109537534B (en) | 2020-08-18 |
Family
ID=65847861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811366482.7A Active CN109537534B (en) | 2018-11-16 | 2018-11-16 | Plane accident gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109537534B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068411A (en) * | 2019-05-14 | 2019-07-30 | 天津大学前沿技术研究院 | A kind of measurement gate moves the experimental rig and method of dynamic frictional resistance when water closes |
| CN110258465A (en) * | 2019-06-26 | 2019-09-20 | 中国电建集团成都勘测设计研究院有限公司 | Plane gate system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004218343A (en) * | 2003-01-17 | 2004-08-05 | Kubota Corp | Stop-log gate |
| CN102635096A (en) * | 2011-08-25 | 2012-08-15 | 邓旭林 | Passive gate bottom-edge device with function of automatic adjustment of water column pressure |
| WO2016080905A1 (en) * | 2014-11-18 | 2016-05-26 | Parafoil Design & Engineering Pte Ltd | A flood barrier |
| CN207314293U (en) * | 2017-10-11 | 2018-05-04 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of high narrow down-the-hole planar slide emergency gate structure |
| CN207314290U (en) * | 2017-10-10 | 2018-05-04 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of full water column steel-slag sand log type gate leaf of down-the-hole plane |
-
2018
- 2018-11-16 CN CN201811366482.7A patent/CN109537534B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004218343A (en) * | 2003-01-17 | 2004-08-05 | Kubota Corp | Stop-log gate |
| CN102635096A (en) * | 2011-08-25 | 2012-08-15 | 邓旭林 | Passive gate bottom-edge device with function of automatic adjustment of water column pressure |
| WO2016080905A1 (en) * | 2014-11-18 | 2016-05-26 | Parafoil Design & Engineering Pte Ltd | A flood barrier |
| CN207314290U (en) * | 2017-10-10 | 2018-05-04 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of full water column steel-slag sand log type gate leaf of down-the-hole plane |
| CN207314293U (en) * | 2017-10-11 | 2018-05-04 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of high narrow down-the-hole planar slide emergency gate structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068411A (en) * | 2019-05-14 | 2019-07-30 | 天津大学前沿技术研究院 | A kind of measurement gate moves the experimental rig and method of dynamic frictional resistance when water closes |
| CN110258465A (en) * | 2019-06-26 | 2019-09-20 | 中国电建集团成都勘测设计研究院有限公司 | Plane gate system |
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| Publication number | Publication date |
|---|---|
| CN109537534B (en) | 2020-08-18 |
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