CN105568935A - Opening and closing method for small-orifice gate and adopted small-orifice gate - Google Patents
Opening and closing method for small-orifice gate and adopted small-orifice gate Download PDFInfo
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- CN105568935A CN105568935A CN201610021694.6A CN201610021694A CN105568935A CN 105568935 A CN105568935 A CN 105568935A CN 201610021694 A CN201610021694 A CN 201610021694A CN 105568935 A CN105568935 A CN 105568935A
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- gate
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- gate flap
- microstome
- flap
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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
- E02B7/26—Vertical-lift gates
- E02B7/30—Vertical-lift gates with guide wheels or rollers for the gates
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Abstract
The invention discloses an opening and closing method for a small-orifice gate and the adopted small-orifice gate. A flushing valve 2 is arranged on the small-orifice gate to balance the water pressure on the upstream face of a gate leaf 1 and the water pressure on the downstream face of the gate leaf 1; an existing dynamic water gate opening manner is changed into a static water gate opening manner; and therefore the capacity and investment cost of a gate hoist are reduced. The small-orifice gate is compact and reasonable in structure, and the reference and guidance can be provided for design of similar plane fixed pulley steel gates with small orifices provided with flushing valves. The gate leaf of the small-orifice gate is provided with the flushing valve for flushing and pressure balancing, static water gate opening can be achieved for the gate, and therefore the capacity of the gate hoist is reduced. Simply-supporting fixed pulleys are adopted as the main support and are lower in friction force compared with sliding block support, and the capacity of the gate hoist can be reduced. Operation holes are formed in webs on the outer sides of boundary beams, and therefore installation of the simply-supporting fixed pulleys and reverse sliding blocks is convenient. Water column gate closing is adopted for the gate, balance weights are avoided, and the investment is reduced.
Description
Technical field
the present invention relates to a kind of method for opening and closing of microstome gate and microstome gate used, belong to dam sluice gate technical field.
Background technology
at present in Hydraulic and Hydro-Power Engineering, microstome gate often adopts small guide vane to carry the plane slide block steel-slag sand of door, and the structure design of this gate is simple, but gate belongs to dynamic water opens door, higher to headstock gear capacity requirement, adds headstock gear cost of investment.In addition for microstome, the little deadweight of volume of gate is also relatively light, depends gate deadweight alone and cannot close door.Traditional way adopts counterweight to close door, and traditional way has following two problems: one is adopt gray iron counterweight to add manufacture of gate cost, and two is that gate does not have sufficient space to put counterweight, needs to set up ballast box, adds gate design difficulty.
Summary of the invention
the object of the invention is to, a kind of method for opening and closing of microstome gate and microstome gate used are provided, higher to headstock gear capacity requirement to solve existing microstome gate, need the technical problem increasing counterweight when to close, thus overcome the deficiencies in the prior art.
technical scheme of the present invention is achieved in that
a kind of microstome gate opening/closing method of the present invention is, the method on microstome gate, arranges flushing valve for balancing the hydraulic pressure of gate flap upstream face and back side, existing dynamic water is opened a mode to change hydrostatic into and open a mode, to reduce headstock gear capacity and headstock gear cost of investment; The contact surface place of gate flap back side both sides and lock groove is respectively equipped with a pair freely-supported fixed wheel; Employing freely-supported fixed wheel 4 supports frictional resistance when can reduce gate opening/closing, to reduce headstock gear capacity and headstock gear cost of investment; The contact surface place of gate flap upstream face both sides and lock groove is respectively equipped with a pair reverse slide block; The contact surface place of gate flap two ends and lock groove is respectively equipped with a pair freely-supported side wheel; Reverse slide block and freely-supported side wheel can be guaranteed can not steadily to open and close by large-amplitude sloshing in gate opening/closing process.
in preceding method, the upstream face of described gate flap bottom surface is provided with upstream angle of inclination beta, closes the requirement of door to inclination angle, upstream to meet some water, thus realizes water column power and close door; The back side of gate flap bottom surface is provided with downstream inclination alpha, and during to avoid gate opening/closing, cavitation erosion appears in downstream, destroys gate slot structure.
in preceding method, described gate, when carrying out closing door operation, adopts some water to close door, relatively adopts increase counterweight to close door, can save the steel increased needed for counterweight, can reduce gate manufacturing cost.
in preceding method, be provided with support system in described gate flap, to improve the bulk strength of gate flap, support system comprises horizontally disposed girder and vertically disposed side bar and dividing plate; Side bar is provided with handle hole, installs to facilitate freely-supported fixed wheel and reverse slide block.
of the present invention a kind of microstome gate according to said method formation is that this microstome gate comprises gate flap, and above gate flap, centre position is provided with filling valve, and flushing valve is provided with hanger, and hanger is two plate list suspension centre structures; Gate flap both sides are respectively equipped with freely-supported fixed wheel and freely-supported side wheel, and the wheel rim of freely-supported fixed wheel protrudes the back side of gate flap, and the wheel rim of freely-supported side wheel protrudes gate flap end face, and the upstream face both sides of gate flap are provided with reverse slide block, and back side and the bottom of gate flap are provided with water seal.
in aforementioned microstome gate, described gate flap comprises support system; Support system upstream face is provided with upstream panel, and support system back side is provided with downstream panel; Support system comprises one group of uniform girder of level and is positioned at the end secondary beam bottom support system, and at the vertically disposed side bar in support system both sides and one group of dividing plate vertically uniform between two side bars; Side bar is two web structure, is respectively equipped with a pair freely-supported fixed wheel, the outer web of two side bars is respectively equipped with a pair freely-supported side wheel and handle hole between two webs of two side bars; Described filling valve is positioned in the middle part of the back timber of one group of girder.
in aforementioned microstome gate, the outer web of described side bar is provided with handle hole.
owing to have employed technique scheme, compared with prior art, compact conformation of the present invention is reasonable in the present invention, and the plane fixed wheel steel-slag sand design that can be similar microstome band flushing valve provides reference guide.Gate flap of the present invention is provided with flushing valve bath concora crush, and gate can open door by hydrostatic, to reduce headstock gear capacity.Main support of the present invention adopts freely-supported fixed wheel, and opposing slider supports, and frictional force is less, can reduce headstock gear capacity.The present invention is provided with handle hole at the outer coxostermum of side bar, facilitates freely-supported fixed wheel and reverse slide block to install; Gate of the present invention adopts some water Xiamen, effectively avoids adopting counterweight, investment reduction.
Accompanying drawing explanation
fig. 1 is front view of the present invention (left one side of something is back side view, and right one side of something is upstream face view);
fig. 2 is the A-A sectional view of Fig. 1;
fig. 3 is the right view of Fig. 1;
fig. 4 is the pitching view (, for looking up, right one side of something is for overlooking for left one side of something) of Fig. 1.
being labeled as in figure: 1-gate flap, 2-filling valve, 3-hanger, 4-freely-supported fixed wheel, 5-freely-supported side wheel, 6-reverse slide block, 7-water seal, 8-upstream panel, 9-downstream panel, 10-girder, secondary beam at the bottom of 11-, 12-side bar, 13-dividing plate, 14-handle hole.
Detailed description of the invention
below in conjunction with drawings and Examples, the present invention is described in further detail, but not as any limitation of the invention.
a kind of microstome gate opening/closing method of the present invention, as Figure 1-4, the method on microstome gate, arranges flushing valve 2 for balancing the hydraulic pressure of gate flap 1 upstream face and back side, existing dynamic water is opened a mode to change hydrostatic into and open a mode, to reduce headstock gear capacity and headstock gear cost of investment.The contact surface place of gate flap 1 back side both sides and lock groove is respectively equipped with a pair freely-supported fixed wheel 4; The contact surface place of gate flap 1 upstream face both sides and lock groove is respectively equipped with a pair reverse slide block 6; The contact surface place of gate flap 1 two ends and lock groove is respectively equipped with a pair freely-supported side wheel 5; Employing freely-supported fixed wheel 4 supports frictional resistance when can reduce gate opening/closing, to reduce headstock gear capacity and headstock gear cost of investment.Reverse slide block 6 and freely-supported side wheel 5 can be guaranteed in gate opening/closing process can not large-amplitude sloshing, steadily opens and closes.The upstream face of gate flap 1 bottom surface is provided with upstream angle of inclination beta, closes the requirement of door to inclination angle, upstream to meet some water, thus realizes water column power and close door; The back side of gate flap 1 bottom surface is provided with downstream inclination alpha, and during to avoid gate opening/closing, cavitation erosion appears in downstream, destroys gate slot structure.Gate, when carrying out closing door operation, adopts some water to close door, relatively adopts increase counterweight to close door, can save the steel increased needed for counterweight, can reduce gate manufacturing cost.Be provided with support system in gate flap 1, to improve the bulk strength of gate flap 1, support system comprises horizontally disposed girder 10 and vertically disposed side bar 12 and dividing plate 13; Side bar 12 is provided with handle hole 14, installs to facilitate freely-supported fixed wheel 4 and reverse slide block 6.
according to of the present invention a kind of microstome gate that said method is formed, as Figure 1-4, comprise gate flap 1, above gate flap 1, centre position is provided with filling valve 2, and flushing valve 2 is provided with hanger 3, and hanger 3 is two plate list suspension centre structures; Gate flap 1 both sides are respectively equipped with freely-supported fixed wheel 4 and freely-supported side wheel 5, the wheel rim of freely-supported fixed wheel 4 protrudes the back side of gate flap 1, the wheel rim of freely-supported side wheel 5 protrudes gate flap 1 end face, and the upstream face both sides of gate flap 1 are provided with reverse slide block 6, and the back side of gate flap 1 and bottom are provided with water seal 7.Gate flap 1 comprises support system; Support system upstream face is provided with upstream panel 8, and support system back side is provided with downstream panel 9; The end secondary beam 11 that support system comprises one group of uniform girder of level 10 and is positioned at bottom support system, and at the vertically disposed side bar in support system both sides 12 and one group of dividing plate 13 vertically uniform between two side bars 12; Side bar 12 is two web structure, and the outer web being respectively equipped with a pair freely-supported fixed wheel, 4, two side bars between two webs of two side bars is respectively equipped with a pair freely-supported side wheel 5 and handle hole 14; Described filling valve 2 is positioned in the middle part of the back timber of one group of girder 10.The outer web of side bar 12 is provided with handle hole 14.
Embodiment
in Hydraulic and Hydro-Power Engineering, often can run into the down-the-hole plane steel gate of some microstomes.Because port size is less, the down-the-hole plane steel gate of microstome is generally all designed to the plane slide block steel-slag sand that small guide vane carries door, but sometimes by headstock gear capacity impact or requirement of engineering, require the plane fixed wheel steel-slag sand being designed to be with flushing valve, this arranges gate structure and has higher requirement.Aperture is less, and gate design difficulty is larger.Comparatively speaking, the structure design that small guide vane carries the plane slide block steel-slag sand of door is simple, but small guide vane is carried door and belonged to dynamic water and open door, larger to headstock gear capacity requirement, adds headstock gear cost of investment.The complex structural designs of the plane fixed wheel steel-slag sand with flushing valve, requires higher to designed output.
this example is for wide × high microstome lock for 2m × 2m of port size.Microstome gate design is become the plane fixed wheel steel-slag sand structure of band flushing valve.Microstome gate of the present invention belongs to hydrostatic open door by opening door after flushing valve water-filling concora crush, can reduce headstock gear capacity, saves headstock gear cost of investment.
the plane fixed wheel steel-slag sand of the microstome band flushing valve of this example as Figure 1-4, mainly comprises gate flap 1, freely-supported fixed wheel 4, flushing valve 2, water seal 7, freely-supported side wheel 5, the several major part of reverse slide block 6.
gate height 3500mm (containing flushing valve device), gate widths 3070mm, gate side sealing center to center distance 2180mm, gate supporting span 2640mm, top sealing is to end bank height 2100mm (bottom seal compressive state).
be provided with support system in gate flap 1, the beam in support system adopts with layer arrangement, arranges three I shape girders, a foundation secondary beam altogether, girder 10 spacing 750mm, and end girder is apart from end bank 490mm.Gate flap 1 arranges three road vertical clapboards, and dividing plate 13 spacing is 660mm, and side bar 12 and dividing plate 13 spacing are 660mm.Side bar 12 is two web structure, and on the outer coxostermum of side bar 12, two handle holes 14 are established in every side, establish four altogether, for installing freely-supported fixed wheel 4 and reverse slide block 6.Upstream panel 8 is located at upstream side, and water seal 7 comprises top seal, side seal and bottom seal, and top seal and side seal are located at the back side of gate flap, adopts model to be the water seal of P45-A.Bottom seal is located at the bottom surface of gate flap, adopts model to be the water seal of I110-16.
filling valve 2 is located at gate flap 1 and is pushed up on girder, adopts flat lid type filling valve, its charging pipe internal diameter 250mm, filling valve stroke 200mm.Flushing valve 2 is provided with hanger 3, and hanger 3 adopts single suspension centre double plate structure, hanger bore dia 120mm.
the main supporting of gate adopts the freely-supported fixed wheel 4 of diameter 600mm, two, every side, and spacing 975mm, establishes four freely-supported fixed wheels altogether; Reverse supporting adopts reverse slide block 6, two, every side, is located at top girder and end girder centerline respectively, establishes four reverse slide blocks 6 altogether; Side bearing adopts freely-supported side wheel 5,2, every side, is located on the outer coxostermum of side bar, establishes 4 freely-supported side wheels altogether.
because the deadweight of microstome gate is lighter, depend gate deadweight alone and cannot close door, if adopt counterweight to close door, have two deficiencies, one is that counterweight is generally gray iron, add cost, two is that gate does not have sufficient space to put counterweight, needs to set up ballast box, add gate design difficulty, therefore the present invention adopts some water to close door, and bottom gate flap, inclination angle, upstream is 45 °, and inclination angle, downstream is 44 °.Can determine to adopt full water column or some water to close door according to requirement of engineering, head size, headstock gear amount of capacity etc. in Practical Project.
supplementary notes of the present invention: 1, water column power refers to the differential water pressures that this part area between top seal and bottom seal is formed, when gate own wt cannot close, can adopt the method.In engineering reality, if adopt some water just can close door, full water column just need not be adopted to close door, because water column power is larger, more easily close door, but too increase Qi Menli, the waste of headstock gear capacity can be caused.2, adopt water column to close door, relatively increase counterweight and close door, just can save gate manufacturing cost.3, adopt bulkhead gate, opposing slider supports, and can reduce the frictional force of gate opening/closing, just can reduce headstock gear capacity.4, after adopting flushing valve bath concora crush, hydrostatic opens door, and relative small guide vane carries door, just can reduce headstock gear capacity.5, all plane gates, are all provided with inclination angle, downstream, are when avoiding gate opening/closing, and cavitation erosion appears in downstream face, destroy gate slot structure.This is commonly known, and inclination angle, downstream code requirement is more than or equal to 30 °.If 6 gates adopt some water to close door, just have inclination angle, upstream, this is that structure needs, and inclination angle, upstream code requirement is between 45 ° to 60 °.
Claims (7)
1. a microstome gate opening/closing method, it is characterized in that: the method on microstome gate, arranges flushing valve for balancing the hydraulic pressure of gate flap upstream face and back side, existing dynamic water is opened a mode to change hydrostatic into and open a mode, to reduce headstock gear capacity and headstock gear cost of investment; The contact surface place of gate flap back side both sides and lock groove is respectively equipped with a pair freely-supported fixed wheel; Employing freely-supported fixed wheel 4 supports frictional resistance when can reduce gate opening/closing, to reduce headstock gear capacity and headstock gear cost of investment; The contact surface place of gate flap upstream face both sides and lock groove is respectively equipped with a pair reverse slide block; The contact surface place of gate flap two ends and lock groove is respectively equipped with a pair freely-supported side wheel; Reverse slide block and freely-supported side wheel can be guaranteed can not steadily to open and close by large-amplitude sloshing in gate opening/closing process.
2. microstome gate opening/closing method according to claim 1, is characterized in that: the upstream face of described gate flap bottom surface is provided with upstream angle of inclination beta, closes the requirement of door to inclination angle, upstream to meet some water, thus realizes water column power and close door; The back side of gate flap bottom surface is provided with downstream inclination alpha, and during to avoid gate opening/closing, cavitation erosion appears in downstream, destroys gate slot structure.
3. microstome gate opening/closing method according to claim 1, it is characterized in that: described gate, when carrying out closing door operation, adopts some water to close door, relatively adopting increase counterweight to close door, the steel increased needed for counterweight can be saved, gate manufacturing cost can be reduced.
4. microstome gate opening/closing method according to claim 1, is characterized in that: be provided with support system in described gate flap, and to improve the bulk strength of gate flap, support system comprises horizontally disposed girder and vertically disposed side bar and dividing plate; Side bar is provided with handle hole, installs to facilitate freely-supported fixed wheel and reverse slide block.
5. the microstome gate that method is formed according to the arbitrary claim of claim 1-4, it is characterized in that: comprise gate flap (1), centre position, gate flap (1) top is provided with filling valve (2), and flushing valve (2) is provided with hanger (3), and hanger (3) is two plate list suspension centre structures; Gate flap (1) both sides are respectively equipped with freely-supported fixed wheel (4) and freely-supported side wheel (5), the wheel rim of freely-supported fixed wheel (4) protrudes the back side of gate flap (1), the wheel rim of freely-supported side wheel (5) protrudes gate flap (1) end face, the upstream face both sides of gate flap (1) are provided with reverse slide block (6), and the back side of gate flap (1) and bottom are provided with water seal (7).
6. microstome gate according to claim 5, is characterized in that: described gate flap (1) comprises support system; Support system upstream face is provided with upstream panel (8), and support system back side is provided with downstream panel (9); The end secondary beam (11) that support system comprises one group of uniform girder (10) of level and is positioned at bottom support system, and be positioned at the vertically disposed side bar in support system both sides (12) and be positioned at one group of dividing plate (13) vertically uniform between two side bars (12); Side bar (12) is two web structure, is respectively equipped with a pair freely-supported fixed wheel (4), the outer web of two side bars is respectively equipped with a pair freely-supported side wheel (5) and handle hole (14) between two webs of two side bars; Described filling valve (2) is positioned in the middle part of the back timber of one group of girder (10).
7. microstome gate according to claim 6, is characterized in that: the outer web of described side bar (12) is provided with handle hole (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610021694.6A CN105568935A (en) | 2016-01-14 | 2016-01-14 | Opening and closing method for small-orifice gate and adopted small-orifice gate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610021694.6A CN105568935A (en) | 2016-01-14 | 2016-01-14 | Opening and closing method for small-orifice gate and adopted small-orifice gate |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106836150A (en) * | 2017-03-14 | 2017-06-13 | 唐水深 | One kind bypass suction gate |
| CN108330921A (en) * | 2018-04-12 | 2018-07-27 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of high narrow big aperture inlet gate water discharge method and device |
| CN108487195A (en) * | 2018-06-08 | 2018-09-04 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of microstome one piece casting type planar slide bulkhead gate |
| CN109457681A (en) * | 2018-11-29 | 2019-03-12 | 中设设计集团股份有限公司 | A kind of single shaft water-filling opening and closing integral valve |
| CN109537536A (en) * | 2018-12-29 | 2019-03-29 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of box type girder structure reducing downstream sealing plane emergency gate uplift pressure |
| CN110068412A (en) * | 2019-05-14 | 2019-07-30 | 天津大学前沿技术研究院 | A kind of experimental rig and method measuring the quiet frictional resistance of gate |
| CN111236175A (en) * | 2020-03-16 | 2020-06-05 | 中国电建集团贵阳勘测设计研究院有限公司 | Plane accident gate structure and emergency water draining method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836150A (en) * | 2017-03-14 | 2017-06-13 | 唐水深 | One kind bypass suction gate |
| CN108330921A (en) * | 2018-04-12 | 2018-07-27 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of high narrow big aperture inlet gate water discharge method and device |
| CN108330921B (en) * | 2018-04-12 | 2023-04-07 | 中国电建集团贵阳勘测设计研究院有限公司 | Drainage method and device for high-narrow large-hole inlet gate |
| CN108487195A (en) * | 2018-06-08 | 2018-09-04 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of microstome one piece casting type planar slide bulkhead gate |
| CN108487195B (en) * | 2018-06-08 | 2024-04-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Small-hole integral casting type plane sliding overhaul gate |
| CN109457681A (en) * | 2018-11-29 | 2019-03-12 | 中设设计集团股份有限公司 | A kind of single shaft water-filling opening and closing integral valve |
| CN109537536A (en) * | 2018-12-29 | 2019-03-29 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of box type girder structure reducing downstream sealing plane emergency gate uplift pressure |
| CN109537536B (en) * | 2018-12-29 | 2024-03-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Box-type girder structure for reducing floating force of downstream water-stopping plane accident gate |
| CN110068412A (en) * | 2019-05-14 | 2019-07-30 | 天津大学前沿技术研究院 | A kind of experimental rig and method measuring the quiet frictional resistance of gate |
| CN111236175A (en) * | 2020-03-16 | 2020-06-05 | 中国电建集团贵阳勘测设计研究院有限公司 | Plane accident gate structure and emergency water draining method |
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Application publication date: 20160511 |