CN104452702A - Maintenance method for emergency gate of low-head gate dam and gate dam structure - Google Patents
Maintenance method for emergency gate of low-head gate dam and gate dam structure Download PDFInfo
- Publication number
- CN104452702A CN104452702A CN201410644164.8A CN201410644164A CN104452702A CN 104452702 A CN104452702 A CN 104452702A CN 201410644164 A CN201410644164 A CN 201410644164A CN 104452702 A CN104452702 A CN 104452702A
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- China
- Prior art keywords
- gate
- platform
- dam
- locking
- emergency gate
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Classifications
-
- 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
-
- 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
Abstract
The invention discloses a maintenance method for an emergency gate of a low-head gate dam and a gate dam structure. According to the maintenance method for the emergency gate of the low-head gate dam, a hydraulic oil cylinder is used as a device for lifting the emergency gate, the lower section of the hydraulic oil cylinder extends into the gate dam, the middle portion of the hydraulic oil cylinder is connected with a base fixed to a dam face, the length of the portion, extending out of the dam face, of the upper section of the hydraulic oil cylinder is smaller than the height limit of a portal crane, and an existing portal crane does not need to the reformed; the bottom of the hydraulic oil cylinder is connected with the emergency gate through a pull rod, the emergency gate is lifted to a maintenance cavity in a dam body through the hydraulic oil cylinder, the upper end and the lower end of the emergency gate are fixed to an upper locking platform in the maintenance cavity and a lower locking platform in the maintenance cavity respectively through a locking beam, and the emergency gate is maintained in the maintenance cavity. By the adoption of the maintenance method for the emergency gate of the low-head gate dam and the gate dam structure, the requirement for the height limit of the portal crane is lowered, the existing portal crane does not need to be reformed, the maintenance efficiency is improved, the maintenance cost is reduced, and the sealing effect of the emergency gate is improved.
Description
Technical field
the present invention relates to a kind of repair method and gate dam structure of low gate dam Emergency Gate, 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 Service gate by job specification, Emergency Gate and Emergency Gate.Emergency Gate is positioned at Service gate upstream, and Emergency Gate is between Service gate and Emergency 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, be then called quick Emergency Gate.In the gate dam required without Rapid door closer, the keying of Emergency Gate adopts wire rope hoist to operate usually.
for low water head gate dam generating set power station, because diversion culvert is shorter, water inlet Emergency Gate is comparatively near apart from unit, what load rejection produced surge on Emergency Gate and gate slot impact comparatively large, therefore need regularly to overhaul Emergency Gate.When overhauling Emergency Gate, can enable the Emergency Gate being located at Emergency Gate upstream, Emergency Gate adopts a machine operation usually.Due to low gate dam generating set level of dead water with differ less between normal pool level, therefore gate dam height is also corresponding lower, causes inspection platform to dam facing apart from short.Overhaul to Emergency Gate be risen to completely dam facing, the door machine insufficient height on existing dam facing is high, to increase door machine height, will certainly add the Design and manufacture difficulty of door machine, investing larger.Each maintenance also needs steel framed bent and the wire rope hoist of removing more than dam facing in addition, and also need after maintenance to reinstall steel framed bent and wire rope hoist, maintenance process extremely bothers.Therefore, gate dam structure of the prior art or not ideal enough.
Summary of the invention
the object of the invention is to, there is provided a kind of without the need to transforming existing door machine and overhaul efficiency can be increased substantially, reducing repair method and the gate dam structure of the cost of overhaul, structure low gate dam Emergency Gate simple, easy to use, to overcome the deficiencies in the prior art.
technical scheme of the present invention is achieved in that
the repair method of a kind of 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, the length that hydraulic jack epimere stretches out dam facing is less than the limit for height of a machine, without the need to transforming existing door machine; 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 in maintenance chamber respectively, in maintenance chamber, complete the maintenance of Emergency Gate.
in preceding method, the length that described hydraulic jack epimere stretches out dam facing is less than 2/3 of oil cylinder contraction state overall length.
in preceding method, described locking platform comprises the upstream locking platform being positioned at Emergency Gate upstream and the downstream locking platform being positioned at Emergency Gate downstream, locking beam is provided with between the locking platform of Emergency Gate both sides, locking beam two ends lock the non-orbiting scroll that platform and downstream lock on platform respectively and are connected with upstream, 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, be 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 is up and down provided with door opening.
the of the present invention a kind of gate dam structure built as stated above is that this gate dam structure comprises dam body, and dam body top is provided with a machine, is provided with water inlet bottom dam body, is provided with Emergency 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 comprises the upstream locking platform being positioned at side, Emergency Gate upstream and the downstream locking platform being positioned at side, Emergency Gate downstream, be provided with locking beam between the locking platform of Emergency Gate both sides, locking beam two ends lock the non-orbiting scroll that platform and downstream lock on platform respectively and are connected with upstream.
in aforementioned gate dam structure, be provided with vertical cat ladder in described maintenance chamber, lock the operating platform being provided with differing heights between platform up and down, operating platform edge is provided with guardrail.
in aforementioned gate dam structure, the described gate pier locking platform two ends is up and down 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, eliminate the trouble removing and reinstall dam facing steel framed bent and wire rope hoist when the present invention overhauls, compared with prior art, the present invention has following beneficial effect in the present invention:
1, water inlet Emergency Gate adopts rectilinear hydraulic press to operate, 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 no more than 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 the maintenance requirement that gate is not lifted out aperture by removing pull bar, the operating platform of differing heights is set simultaneously between upper and lower two locking platforms, is convenient 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, the locking platform of all Emergency Gates that every platform unit is corresponding is communicated with, Field Force is when wherein a fan Emergency Gate locks beam in independent operation, the space of adjacent Emergency Gate can be utilized, disturb without gate pier partition wall, door opening height is not less than 1.8m simultaneously, is conducive to human users.
4, upper and lower two locking platforms arrange elongated track, 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 into flat section and ground sill declivity section three sections in ground sill upsloping segment, ground sill, in its ground sill, flat section and end sill are in same plane, the sealing of composition U-shaped, corresponding with water seal position U-shaped bottom Emergency Gate, water seal compression evenly, effectively can ensure the stagnant water effect of water seal.
Accompanying drawing explanation
fig. 1 is 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-Emergency 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.
the repair method of a kind of 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, the length that hydraulic jack epimere stretches out dam facing is less than the limit for height of a machine, without the need to transforming existing door machine; 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 in maintenance chamber respectively, in maintenance chamber, complete the maintenance of Emergency Gate.The length that hydraulic jack epimere stretches out dam facing is less than 2/3 of oil cylinder contraction state overall length.Locking platform comprises the upstream locking platform being positioned at Emergency Gate upstream and the downstream locking platform being positioned at Emergency Gate downstream, locking beam is provided with between the locking platform of Emergency Gate both sides, locking beam two ends lock the non-orbiting scroll that platform and downstream lock on platform respectively and are connected with upstream, 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.Lock the operating platform being provided with differing heights between platform up and down, operating platform edge is provided with guardrail.The gate pier locking platform two ends is up and down provided with door opening.
the of the present invention a kind of gate dam structure built as stated above is that this gate dam structure comprises 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 Emergency 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 comprises the upstream locking platform being positioned at side, Emergency Gate 2 upstream and the downstream locking platform being positioned at side, Emergency Gate downstream, be provided with locking beam 14 between the locking platform 6 of Emergency Gate 2 both sides, locking beam 14 two ends lock platform and the downstream track 13 locked on platform respectively and roll and be connected with upstream.Maintenance is provided with vertical cat ladder 17 in chamber 16, and lock the operating platform 10 being provided with differing heights between platform up and down, operating platform 10 edge is provided with guardrail 18.The gate pier 11 locking platform two ends is up and down 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 established in the dam body 15 of prior art, Emergency Gate 2 is promoted to inspection platform locking by the hoist engine 20 be located on dam facing, after utilizing door machine to remove wire rope hoist 20 and steel framed bent 21, then by door machine 4, Emergency Gate 2 hung out dam facing maintenance; After maintenance, utilize door machine 4 to be locked on inspection platform by Emergency Gate 2, then install wire rope hoist 20 and steel framed bent 21, therefore often overhaul an Emergency Gate 2, all need dismounting and installation wire rope hoist 20 and steel framed bent 21 once, maintenance extremely bothers.
the present invention 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 of hydraulic jack 8 is made to stretch in dam body, effectively reduce the height of lifting appliance, with the limit for height requirement of satisfied door machine 4.The present invention simultaneously adopts the mode of maintenance in dam body, maintenance chamber 16 is set in dam body, maintenance is provided with the locking platform 6 of fixing Emergency Gate and the operating platform 10 for overhauling in chamber, and operating platform 10 edge is provided with guardrail 18, and being also provided with vertical cat ladder in maintenance chamber needs with handled easily.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 as shown in Figure 3, be divided into flat section 23 and ground sill declivity section 24 in ground sill upsloping segment 22, ground sill, be tightly connected in same plane bottom flat section 23 and Emergency Gate 2 in its ground sill, form the U-shaped corresponding with water seal position bottom Emergency Gate and seal.
Claims (10)
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, the length that hydraulic jack epimere stretches out dam facing is less than the limit for height of a machine, without the need to transforming existing door machine; 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 in maintenance chamber respectively, in maintenance chamber, complete the maintenance of Emergency Gate.
2. method according to claim 1, is characterized in that: the length that described hydraulic jack epimere stretches out dam facing is less than 2/3 of oil cylinder contraction state overall length.
3. method according to claim 1, it is characterized in that: described locking platform comprises the upstream locking platform being positioned at Emergency Gate upstream and the downstream locking platform being positioned at Emergency Gate downstream, locking beam is provided with between the locking platform of Emergency Gate both sides, locking beam two ends lock the non-orbiting scroll that platform and downstream lock on platform respectively and are connected with upstream, 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.
4. method according to claim 1, is characterized in that: describedly lock the operating platform being provided with differing heights between platform up and down, and operating platform edge is provided with guardrail.
5. method according to claim 1, is characterized in that: the described gate pier locking platform two ends is up and down provided with door opening.
6. the gate dam structure built by method described in the arbitrary claim of Claims 1 to 5, comprise 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 Emergency 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), and the lower end of hydraulic jack (8) is connected with Emergency Gate (2) through pull bar (9).
7. gate dam structure according to claim 6, it is characterized in that: described maintenance chamber (16) up and down two ends is provided with locking platform (6), locking platform (6) is provided with track (13), locking platform (6) comprises the upstream locking platform being positioned at Emergency Gate (2) side, upstream and the downstream locking platform being positioned at side, Emergency Gate downstream, be provided with locking beam (14) between the locking platform (6) of Emergency Gate (2) both sides, locking beam (14) two ends lock platform and the downstream track (13) locked on platform respectively and roll and be connected with upstream.
8. gate dam structure according to claim 6, is characterized in that: be provided with vertical cat ladder (17) in described maintenance chamber (16), and lock the operating platform (10) being provided with differing heights between platform up and down, operating platform (10) edge is provided with guardrail (18).
9. gate dam structure according to claim 6, is characterized in that: the described gate pier (11) locking platform two ends is up and down provided with door opening (12).
10. gate dam structure according to claim 7, is characterized in that: described Emergency Gate (2) two side ends is slidably connected through gate slot (5) and dam body (15), and Emergency Gate (2) bottom is tightly connected with the gate slot ground sill (19) of water inlet (1) bottom.
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 |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
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| CN104452702A true CN104452702A (en) | 2015-03-25 |
| CN104452702B CN104452702B (en) | 2016-07-06 |
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| CN201410644164.8A Active 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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108842730A (en) * | 2018-07-25 | 2018-11-20 | 中国电建集团华东勘测设计研究院有限公司 | Huge intake tower stop gate slot structure and stop gate overhaul hoisting method |
| CN109356130A (en) * | 2018-12-10 | 2019-02-19 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of locking means and device of tailrace tunnel bulkhead gate |
| CN109356117A (en) * | 2018-12-10 | 2019-02-19 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of arragement construction of hydroelectric project water inlet |
| CN109371929A (en) * | 2018-11-30 | 2019-02-22 | 中国电建集团成都勘测设计研究院有限公司 | It is provided with the water conservancy project water retaining structure of flood discharge channel system |
| 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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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108842730A (en) * | 2018-07-25 | 2018-11-20 | 中国电建集团华东勘测设计研究院有限公司 | Huge intake tower stop gate slot structure and stop gate overhaul hoisting method |
| CN109371929A (en) * | 2018-11-30 | 2019-02-22 | 中国电建集团成都勘测设计研究院有限公司 | It is provided with the water conservancy project water retaining structure of flood discharge channel system |
| CN109371929B (en) * | 2018-11-30 | 2024-02-13 | 中国电建集团成都勘测设计研究院有限公司 | Hydraulic water retaining building provided with flood discharge channel system |
| CN109356130A (en) * | 2018-12-10 | 2019-02-19 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of locking means and device of tailrace tunnel bulkhead gate |
| CN109356117A (en) * | 2018-12-10 | 2019-02-19 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of arragement construction of hydroelectric project water inlet |
| CN109356130B (en) * | 2018-12-10 | 2023-11-14 | 中国电建集团贵阳勘测设计研究院有限公司 | Locking method and device for tail water tunnel overhaul gate |
| 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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| CN104452702B (en) | 2016-07-06 |
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