CN2463450Y

CN2463450Y - Floating pontoon separated hydraulic self-controlling gate

Info

Publication number: CN2463450Y
Application number: CN 00225685
Authority: CN
Inventors: 谢平泉; 肖义才; 陈胜方; 陈志德; 文求辉
Original assignee: SHAOSHAN IRRIGATED AREA ENGINEERING ADMINISTRATION HUNAN PROV
Current assignee: SHAOSHAN IRRIGATED AREA ENGINEERING ADMINISTRATION HUNAN PROV
Priority date: 2000-09-25
Filing date: 2000-09-25
Publication date: 2001-12-05
Anticipated expiration: 2010-09-25

Abstract

The utility model discloses a floating box separate type hydraulic automatic control gate composed of a sluice gate 2, a pulley block and a floating box 10 which is sheathed in a floating pool 11, wherein the sluice gate 2 and the pulley block are sheathed in a gate chamber 1, a gate valve 12 of a water discharge pipe is arranged on one side at the bottom of the floating pool 11, and a water inlet pipe 13 of the floating pool, which is aslant and upwards installed, is arranged on the other side. The floating box separate type hydraulic automatic control gate can realize the automatic control of an upstream normal water level under the condition of low fall and can be automatically and stably opened when a water level of a front pool exceeds a controlled water level. When the water level of the front pool is lower than the controlled water level, the floating box separate type hydraulic automatic control gate is automatically and stably closed. The safe running degree of a general main channel is enhanced. Meanwhile, the use degree of water resources is enhanced.

Description

Buoyancy tank separate type waterpower self-control door

The utility model relates to a kind of waterpower self-control door, particularly a kind of buoyancy tank separate type waterpower self-control door.

At present, it mainly is to adopt the waterpower automatic gate that waterpower is controlled drainage facility automatically, and it uses the force system in equilibrium principle by waterpower, gravity and damping force, under predetermined water level condition, and energy automatic open and close gate, control changes in flow rate.It comprises from the vertical pivot plain batton door to transverse axis pivotal plate door, from single hinge plate-turning door to two hinges, many hinges, hinge (curve) plate-turning door continuously, from the hydraulic shock absorber of plate-turning door to various damping units etc.Because it is simple in structure, reliable and need not start the energy and operating personnel that this type of waterpower is controlled drainage facility automatically, therefore, is widely used in the rivers and canals check gate, channel drainage gate, reservoir spillway lock.Yet, at present also do not have to solve well and under the low head condition, realize automatic control, make the upstream reach the waterpower self-control door of the less constant water level of fluctuating range.

The purpose of this utility model is to provide a kind of buoyancy tank separate type waterpower self-control door that can realize automatic control under the low head condition.

The purpose of this utility model is achieved in that the upper end that is sleeved on the gate 2 in the lock chamber 1 joins with hinged-support 8 through fixed pulley 4, fixed pulley 5 and the movable pulley 6 that is set in strut 9 upper ends by wire rope 3, the lower end of strut 9 and buoyancy tank 10 install, buoyancy tank 10 is sleeved in the floating pond 11, floating 11 bottoms, pond one side is provided with gutter gate valve 12, opposite side is provided with the floating pond water inlet pipe of installing obliquely 13, and the upper end of strut 9 is equipped with the guide peg 7 by guided bearing 14, guided bearing 15 constrained motion tracks.

The utility model has the advantages that: can when preceding pool water level surpasses control water level, open by automatic steady, when preceding pool water level is lower than control water level, automatic steady is closed, greatly improved general main canal channel safe operation degree, improved the degree of utilizing of water resource simultaneously, it not only can be used for the flood discharge security personnel of various reservoirs, channel, and can be used for the automatic control of pool water level before the power station, also can be used as the interior automatic control check gate of canal simultaneously.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is a fundamental diagram of the present utility model;

Fig. 2 is an embodiment user mode reference diagram of the present utility model.

Embodiment: as seen from Figure 1, Figure 2, the utility model is realized the process of automatic control under the low head condition: comprise control signal collection, the conversion of force of opening and closing source, amplify and transmit.The control signal collecting mechanism mainly is made up of intake drain grating, overflow bank and floating pond water inlet pipe 13, and it can gather gate opening/closing information automatically according to the upstream control water level; The switching mechanism of force of opening and closing source is made up of floating pond 11, buoyancy tank 10, floating pond draining valve 12, strut 9, guide peg 7, and it mainly is that the keying information translation that will collect becomes gate to rise to close the power source; Transmission mechanism is made up of fixed pulley 4, fixed pulley 5, movable pulley 6 and wire rope 3, and it mainly is transmission hoisting capacity source; The gate body is made of gate pier, lock groove, gate door leaf, A type lifting framed bent etc., and its function is to accept the hoisting capacity source, finally realizes pool water level before the automatic control power station, drains the unnecessary water yield.

The utility model is applied in the channel power station; when the power station unit hinders or accident when shutting down suddenly for some reason; anhydrating of forebay, power station reduces suddenly; preceding pool water level rises steadily; when water level is higher than the forebay control water level; the water body bank at the bottom of 11 intakes of floating pond that overflow in upstream enters floating pond 11 along floating pond water inlet pipe 13.Along with the continuation rise of preceding pool water level, the influent stream amount in floating pond 11 continues to increase.Meanwhile, though water can be by the part of draining inside and outside the draining valve of floating 11 end of pond in the floating pond 11, because of floating pond 11 water inlets greater than 11 drainings of floating pond, floating pond 11 water levels constantly rise eventually.Along with the rising of floating pond 11 waters surface, buoyancy tank 10 will be increased by buoyancy synchronously.When buoyancy tank 10 suffered buoyancy open power greater than deadweight and the required maximum of gate, buoyancy tank 10 will be with strut 9, movable pulley 6, guide peg 7 to move upward.Across the wire rope 3 of movable pulley 6 under the jacking of movable pulley 6, by the synergy lift gate of fixed pulley 4, fixed pulley 5.Along with the increase of gatage, anhydrating in the forebay, power station constantly increases, and when anhydrating greatly when equaling the forebay and come water, preceding pool water level tends towards stability.At this moment entry and water outlet keep balance in the floating pond 11, and the water surface is stable in the floating pond 11, and buoyancy tank 10 suffered buoyancy remain unchanged.When power station unit accident is got rid of, when start is generated electricity again, anhydrate greater than coming water in the forebay, preceding pool water level constantly descends, and the flow of bank constantly diminishes at the bottom of floating pond 11 intakes that at this moment overflow, and that is to say that entering floating pond 11 flows constantly diminishes, turnover water yield disequilibrium in the floating pond 11, its water surface constantly descends, and buoyancy tank 10 constantly descends under the effect of deadweight and resets, and gate is also closed under the effect of self gravitation automatically.

Claims

1, a kind of buoyancy tank separate type waterpower self-control door, it comprises the gate (2) that is sleeved in the lock chamber (1), it is characterized in that: wire rope (3) is passed through through fixed pulley (4) in the upper end of gate (2), fixed pulley (5) and the movable pulley (6) that is set in strut (9) upper end join with hinged-support (8), the lower end of strut (9) and buoyancy tank (10) install, buoyancy tank (10) is sleeved in the floating pond (11), bottom, floating pond (11) one side is provided with gutter gate valve (12), opposite side is provided with the floating pond water inlet pipe of installing obliquely (13), and the upper end of strut (9) is equipped with by guided bearing (14), the guide peg (7) of guided bearing (15) constrained motion track.