CN104452702B - The repair method of a kind of low gate dam emergency gate and gate dam structure - Google Patents
The repair method of a kind of low gate dam emergency gate and gate dam structure Download PDFInfo
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- CN104452702B CN104452702B CN201410644164.8A CN201410644164A CN104452702B CN 104452702 B CN104452702 B CN 104452702B CN 201410644164 A CN201410644164 A CN 201410644164A CN 104452702 B CN104452702 B CN 104452702B
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- gate
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- emergency
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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Abstract
<b>the invention discloses the repair method of a kind of low gate dam emergency gate and gate dam structure, the method adopts hydraulic jack as the device promoting emergency gate, hydraulic jack hypomere stretches in gate dam, middle part is connected with the pedestal being fixed on dam facing, hydraulic jack epimere stretches out the length limit for height less than door machine of dam facing, it is not necessary to existing door machine is transformed；The bottom of hydraulic jack is connected with emergency gate through pull bar, by hydraulic jack emergency gate is promoted to the maintenance chamber in dam body, and through locking beam, the top and bottom of emergency gate are fixed with the platform of locking up and down of maintenance intracavity respectively, the maintenance of emergency gate is completed at maintenance intracavity.Present invention reduces the limit for height requirement of opposite house machine, it is not necessary to existing door machine is transformed, improves overhaul efficiency, reduce the cost of overhaul, and improve the sealing effectiveness of emergency gate.</b>
Description
Technical field
The present invention relates to the repair method of a kind of low gate dam emergency gate and gate dam structure, belong to low water head gate dam emergency gate service technique field in hydroelectric project.
Background technology
The gate that power station is commonly used can be divided into main gate, bulkhead gate and emergency gate by job specification.Bulkhead gate is positioned at main gate upstream, and emergency gate is between main gate and bulkhead gate.The effect of emergency gate is when the generating set in gate downstream has an accident, the gate can closed in dynamic water.When needs quick closedown, then it is called quick emergency gate.In the gate dam required without Rapid door closer, the keying of emergency gate generally adopts wire rope hoist to operate.
For low water head gate dam generating set power station, because diversion culvert is shorter, water inlet emergency gate is relatively near from unit, and what load rejection produced surges affects bigger on emergency gate and gate slot thereof, it is therefore desirable to regularly emergency gate is overhauled.When emergency gate is overhauled, can enabling the bulkhead gate being located at emergency gate upstream, bulkhead gate generally adopts a machine operation.Owing to differing less between low gate dam generating set level of dead water and normal pool level, therefore gate dam height is also relatively low accordingly, causes inspection platform to dam facing apart from short.Overhauling to emergency gate rises to dam facing completely, the door machine insufficient height on existing dam facing is high, to increase door machine height, will certainly add design and the manufacture difficulty of door machine, invest bigger.Additionally maintenance also needs to remove steel framed bent and the wire rope hoist of more than dam facing every time, also needs to reinstall steel framed bent and wire rope hoist after maintenance, and maintenance process is cumbersome.Therefore, gate dam structure of the prior art or not ideal enough.
Summary of the invention
It is an object of the invention to, there is provided a kind of without existing door machine being transformed and can be increased substantially overhaul efficiency, reducing the cost of overhaul, simple in construction, the repair method of low gate dam emergency gate easy to use and gate dam structure, to overcome the deficiencies in the prior art.
The technical scheme is that and be achieved in that:
A kind of repair method of the low gate dam emergency gate of the present invention, the method adopts hydraulic jack as the device promoting emergency gate, hydraulic jack hypomere stretches in gate dam, middle part is connected with the pedestal being fixed on dam facing, hydraulic jack epimere stretches out the length limit for height less than door machine of dam facing, it is not necessary to existing door machine is transformed；The bottom of hydraulic jack is connected with emergency gate through pull bar, by hydraulic jack emergency gate is promoted to the maintenance chamber in dam body, and through locking beam, the top and bottom of emergency gate are fixed with the platform of locking up and down of maintenance intracavity respectively, the maintenance of emergency gate is completed at maintenance intracavity.
In preceding method, described hydraulic jack epimere stretches out the length of dam facing less than the 2/3 of oil cylinder contraction state overall length.
In preceding method, described locking platform includes the upstream locking platform being positioned at emergency gate upstream and the downstream locking platform being positioned at emergency gate downstream, it is provided with locking beam between the locking platform of emergency gate both sides, the track rolling that locking beam two ends lock with upstream on platform and downstream locking platform respectively is connected, the pull bar of emergency gate is promoted, when locking lockable emergency gate when beam is positioned at emergency gate two ends when locking lockable when beam is positioned at emergency gate middle position.
In preceding method, being provided with the operating platform of differing heights between the described platform of locking up and down, operating platform edge is provided with guardrail.
In preceding method, the described gate pier locking platform two ends up and down is provided with door opening.
A kind of gate dam structure of the present invention built as stated above is that this gate dam structure includes dam body, and dam body top is provided with a machine, is provided with water inlet bottom dam body, is provided with bulkhead gate and emergency gate in water inlet；The dam body at emergency gate top is provided with maintenance chamber, and the dam facing of maintenance top of chamber is provided with pedestal, and pedestal is connected with the middle part of hydraulic jack, and the lower end of hydraulic jack is connected with emergency gate through pull bar.
In aforementioned gate dam structure, upper and lower two ends, described maintenance chamber are provided with locking platform, locking platform is provided with track, locking platform includes the upstream locking platform being positioned at emergency gate upstream side and the downstream locking platform being positioned at side, emergency gate downstream, being provided with locking beam between the locking platform of emergency gate both sides, the track rolling that locking beam two ends lock with upstream on platform and downstream locking platform respectively is connected.
In aforementioned gate dam structure, described maintenance intracavity is provided with vertical cat ladder, is provided with the operating platform of differing heights up and down between locking platform, and operating platform edge is provided with guardrail.
In aforementioned gate dam structure, the described gate pier locking platform two ends up and down is provided with door opening.
In aforementioned gate dam structure, described emergency gate two side ends is slidably connected through gate slot and dam body, bottom emergency gate with water inlet bottom gate slot ground sill be tightly connected.
Owing to have employed technique scheme, eliminating the trouble removing and reinstalling dam facing steel framed bent and wire rope hoist when the present invention overhauls, the present invention compared with prior art, there is advantages that
1, water inlet emergency gate adopts the operation of rectilinear hydraulic press, hydraulic press cylinder is divided into oil cylinder top and oil cylinder bottom two parts by the pedestal arranged by gate slot top, wherein upper height is less than the 2/3 of oil cylinder contraction state overall length, reduces the limit for height requirement of opposite house machine.
2, the gate slot of water inlet emergency gate arranges upper and lower two locking platforms, the distance between upper and lower two locking platforms can be made to meet gate by dismounting pull bar and not be lifted out the maintenance requirement in aperture, the operating platform of differing heights is set simultaneously between upper and lower two locking platforms, it is simple to dismounting pull bar and maintenance.
3, the door opening meeting execute-in-place offered by the gate pier that upper and lower two locking platforms are adjacent, make the locking platform connection of all emergency gates that every unit is corresponding, Field Force is when an individually operated wherein fan emergency gate locking beam, the space of available adjacent emergency gate, partition wall without gate pier disturbs, door opening height is not less than 1.8m simultaneously, is conducive to human users.
4, arranging elongated track on upper and lower two locking platforms, locking beam moves to lockable pull bar placed in the middle, moves to two ends lockable emergency gate, and a set of locking beam can meet the dual-purpose requirement of locking pull bar and gate.
5, emergency gate ground sill is divided in ground sill upsloping segment, ground sill flat section and ground sill declivity section three sections, in its ground sill flat section with end sill in the same plane in, composition U-shaped seal, water seal position U-shaped with bottom emergency gate is corresponding, water seal compression uniformly, can effectively ensure that the stagnant water effect of water seal.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the partial enlarged drawing overhauling chamber in Fig. 1；
Fig. 3 is the partial enlarged drawing at E place in Fig. 1；
Fig. 4 is the A-A sectional view of Fig. 2；
Fig. 5 is the B-B sectional view of Fig. 2；
Fig. 6 is the C-C sectional view of Fig. 2；
Fig. 7 is the structural representation of prior art.
Being labeled as in accompanying drawing: 1-water inlet, 2-emergency gate, 3-bulkhead gate, 4-door machine, 5-gate slot, 6-locks platform, 7-pedestal, 8-hydraulic jack, 9-pull bar, 10-operating platform, 11-gate pier, 12-door opening, 13-track, 14-locks beam, 15-dam body, and 16-overhauls chamber, the vertical cat ladder of 17-, 18-guardrail, 19-gate slot ground sill, 20-hoist engine, 21-steel framed bent, 22-ground sill upsloping segment, flat section in 23-ground sill, 24-ground sill declivity section.
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 repair method of the low gate dam emergency gate of the present invention, as shown in Figure 1: the method adopts hydraulic jack as the device promoting emergency gate, hydraulic jack hypomere stretches in gate dam, middle part is connected with the pedestal being fixed on dam facing, hydraulic jack epimere stretches out the length limit for height less than door machine of dam facing, it is not necessary to existing door machine is transformed；The bottom of hydraulic jack is connected with emergency gate through pull bar, by hydraulic jack emergency gate is promoted to the maintenance chamber in dam body, and through locking beam, the top and bottom of emergency gate are fixed with the platform of locking up and down of maintenance intracavity respectively, the maintenance of emergency gate is completed at maintenance intracavity.Hydraulic jack epimere stretches out the length of dam facing less than the 2/3 of oil cylinder contraction state overall length.Locking platform includes the upstream locking platform being positioned at emergency gate upstream and the downstream locking platform being positioned at emergency gate downstream, it is provided with locking beam between the locking platform of emergency gate both sides, the track rolling that locking beam two ends lock with upstream on platform and downstream locking platform respectively is connected, the pull bar of emergency gate is promoted, when locking lockable emergency gate when beam is positioned at emergency gate two ends when locking lockable when beam is positioned at emergency gate middle position.Being provided with the operating platform of differing heights up and down between locking platform, operating platform edge is provided with guardrail.The gate pier locking platform two ends up and down is provided with door opening.
A kind of gate dam structure of the present invention built as stated above is, this gate dam structure includes dam body 15, and dam body 15 top is provided with a machine 4, is provided with water inlet 1 bottom dam body 15, is provided with bulkhead gate 3 and emergency gate 2 in water inlet 1；As shown in Figure 1: the dam body 15 at emergency gate 2 top is provided with maintenance chamber 16, and the dam facing at maintenance top, chamber 16 is provided with pedestal 7, and pedestal 7 is connected with the middle part of hydraulic jack 8, and the lower end of hydraulic jack 8 is connected with emergency gate 2 through pull bar 9.Maintenance two ends, chamber about 16 are provided with locking platform 6, locking platform 6 is provided with track 13, locking platform 6 includes the upstream locking platform being positioned at emergency gate 2 upstream side and the downstream locking platform being positioned at side, emergency gate downstream, being provided with locking beam 14 between the locking platform 6 of emergency gate 2 both sides, track 13 rolling that locking beam 14 two ends lock with upstream on platform and downstream locking platform respectively is connected.Maintenance is provided with vertical cat ladder 17 in chamber 16, is provided with the operating platform 10 of differing heights up and down between locking platform, and operating platform 10 edge is provided with guardrail 18.The gate pier 11 locking platform two ends up and down is provided with door opening 12.Emergency gate 2 two side ends is slidably connected through gate slot 5 and dam body 15, bottom emergency gate 2 with water inlet 1 bottom gate slot ground sill 19 be tightly connected.
Embodiment
This example is the transformation to prior art as shown in Figure 7.As seen from Figure 6, maintenance chamber 16 is not set in the dam body 15 of prior art, emergency gate 2 is to be promoted to inspection platform locking by the hoist engine 20 being located on dam facing, after utilizing door machine to remove wire rope hoist 20 and steel framed bent 21, again through door machine 4, emergency gate 2 is hung out dam facing and overhauls；After maintenance, utilize door machine 4 to be locked on inspection platform by emergency gate 2, then wire rope hoist 20 and steel framed bent 21 are installed, therefore an every emergency gate 2 of maintenance, it is both needed to remove and wire rope hoist 20 and steel framed bent 21 are installed once, overhauls cumbersome.
The present invention is as shown in Figure 1, hydraulic jack 8 is adopted to instead of existing hoist engine 20 and steel framed bent 21, the height of dam facing is exposed in order to reduce hydraulic jack 8, the middle part of hydraulic jack 8 is connected with the pedestal 7 on dam facing, the hypomere making hydraulic jack 8 stretches in dam body, effectively reduce the height of lifting device, with the limit for height requirement of satisfied door machine 4.The present invention adopts the mode of maintenance in dam body simultaneously, maintenance chamber 16 is set in dam body, maintenance intracavity is provided with the locking platform 6 of fixing emergency gate and the operating platform 10 for overhauling, and operating platform 10 edge is provided with guardrail 18, and maintenance intracavity is additionally provided with vertical cat ladder to facilitate operation needs.For the situation being provided with multiple emergency gate before some generating set, the present invention is provided with door opening 12 to facilitate the movement of persons and to operate at locking platform 6 place.Bottom emergency gate 2 with water inlet 1 bottom gate slot ground sill 19 be tightly connected, gate slot ground sill 19 is as shown in Figure 3, it is divided in ground sill upsloping segment 22, ground sill flat section 23 and ground sill declivity section 24, in its ground sill bottom flat section 23 and emergency gate 2 in the same plane in be tightly connected, form the U-shaped sealing corresponding with water seal position bottom emergency gate.
Claims (9)
1. the repair method of one kind low gate dam emergency gate, it is characterized in that: the method adopts hydraulic jack as the device promoting emergency gate, hydraulic jack hypomere stretches in gate dam, middle part is connected with the pedestal being fixed on dam facing, hydraulic jack epimere stretches out the length limit for height less than door machine of dam facing, it is not necessary to existing door machine is transformed；The bottom of hydraulic jack is connected with emergency gate through pull bar, by hydraulic jack emergency gate is promoted to the maintenance chamber in dam body, and through locking beam, the top and bottom of emergency gate are fixed with the platform of locking up and down of maintenance intracavity respectively, the maintenance of emergency gate is completed at maintenance intracavity；Hydraulic jack epimere stretches out the length of dam facing less than the 2/3 of oil cylinder contraction state overall length.
2. method according to claim 1, it is characterized in that: described locking platform includes being positioned at the upstream locking platform of emergency gate upstream and is positioned at the downstream locking platform in emergency gate downstream, it is provided with locking beam between the locking platform of emergency gate both sides, the track rolling that locking beam two ends lock with upstream on platform and downstream locking platform respectively is connected, the pull bar of emergency gate is promoted, when locking lockable emergency gate when beam is positioned at emergency gate two ends when locking lockable when beam is positioned at emergency gate middle position.
3. method according to claim 1, it is characterised in that: being provided with the operating platform of differing heights between the described platform of locking up and down, operating platform edge is provided with guardrail.
4. method according to claim 1, it is characterised in that: the described gate pier locking platform two ends up and down is provided with door opening.
5. the gate dam structure built by method described in Claims 1 to 4 any claim, including dam body (15), dam body (15) top is provided with a machine (4), and dam body (15) bottom is provided with water inlet (1), is provided with bulkhead gate (3) and emergency gate (2) in water inlet (1)；It is characterized in that: the dam body (15) at emergency gate (2) top is provided with maintenance chamber (16), the dam facing at maintenance chamber (16) top is provided with pedestal (7), pedestal (7) is connected with the middle part of hydraulic jack (8), hydraulic jack epimere stretches out the length of dam facing less than the 2/3 of oil cylinder contraction state overall length, and the lower end of hydraulic jack (8) is connected with emergency gate (2) through pull bar (9).
6. gate dam structure according to claim 5, it is characterized in that: described maintenance chamber (16) two ends up and down are provided with locking platform (6), locking platform (6) is provided with track (13), locking platform (6) includes the upstream locking platform being positioned at emergency gate (2) upstream side and the downstream locking platform being positioned at side, emergency gate downstream, being provided with locking beam (14) between the locking platform (6) of emergency gate (2) both sides, track (13) rolling that locking beam (14) two ends lock with upstream on platform and downstream locking platform respectively is connected.
7. gate dam structure according to claim 5, it is characterised in that: being provided with vertical cat ladder (17) in described maintenance chamber (16), be provided with the operating platform (10) of differing heights up and down between locking platform, operating platform (10) edge is provided with guardrail (18).
8. gate dam structure according to claim 5, it is characterised in that: the described gate pier (11) locking platform two ends up and down is provided with door opening (12).
9. gate dam structure according to claim 6, it is characterised in that: described emergency gate (2) two side ends is slidably connected through gate slot (5) and dam body (15), and the gate slot ground sill (19) of emergency gate (2) bottom and water inlet (1) bottom is tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410644164.8A CN104452702B (en) | 2014-11-14 | 2014-11-14 | The repair method of a kind of low gate dam emergency gate and gate dam structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410644164.8A CN104452702B (en) | 2014-11-14 | 2014-11-14 | The repair method of a kind of low gate dam emergency gate and gate dam structure |
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| CN104452702A CN104452702A (en) | 2015-03-25 |
| CN104452702B true CN104452702B (en) | 2016-07-06 |
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| CN104452702A (en) | 2015-03-25 |
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