CN1873106A - Buoyancy force type lock gate - Google Patents

Abstract

A navigation lock gate of buoyant force type is prepared as providing buoyant force in about balance to their own weight by buoyancy tank and gate, controlling lift and down of gate by external force or by regulating volume size of air in buoyant force regulation tank.

Description

Buoyancy force type lock gate

Affiliated technical field

The present invention relates to a kind of water conservancy shipping facilities, specifically refer to a kind of lock gate that utilizes the buoyant equilibrium gate.

Background technology

The gate of using in landlocked rivers or canal upper lock at present has horizontal pulled gate, flap gate, miter gate, goes straight up to gate etc., and the characteristics and the scope of application of various gates have nothing in common with each other.The frequent gate of the higher keying of head often adopts miter gate, it has, and keying is quick, watertightness is reliable, bear the big characteristics of hydraulic pressure, but because the opening ways of miter gate is a double fan horizontal drawing, the gate upside will be as the space of starting gate apart from the waters in the gate width range, steamer must not be near stopping, and when the lock chamber water level was raised, this segment space also needed water to fill, and therefore relatively water consumption is consuming time.With the Three Gorges Permanent is example, and its upstream and downstream drop is 113 meters, is divided into 5 grades, 22～23 meters of every grade of drops are made up of 5 each long 280 meters wide lock chambers of 34 meters, and ship lock is a miter gate, high 38.5 meters, fleet is by 5 grades of about 2 hours 40 minutes ship lock times spent, water consumption 280 * 34 * 22=209440m ³, 32 minutes consuming time by lift lock.

Summary of the invention

Two fan brake doors of miter gate not only will bear very high hydraulic pressure, and guarantee that gate does not produce distortion under the high pressure effect, in order to avoid wreck between the gate and with the watertight ability of lock chamber, therefore the miter gate structure that drop is big is extremely complicated, has extremely strong non-deformability, the single gate of Three Gorges Ship Lock is just heavy 867 tons, opens and closes the control complexity.The objective of the invention is to get over dam water consumption deficiency consuming time in order to overcome highly difficult big, the steamer of ship lock miter gate complex structure, requirement on machining accuracy, a kind of simple in structure, quick, the relative water-saving timesaving of unlatching floatage-type gate is provided, mainly form by gate, buoyancy tank, gate chamber etc., gate opening/closing all moves at vertical direction, do not need to take on every side the waters as the space of starting gate, if Three Gorges Ship Lock adopts this mode, its lock chamber length of same carrying capacity can be reduced to 260 meters, can reduce to 260 * 34 * 22=194480m by 5 grades of ship lock water consumptions ³, 1.5 ten thousand tons of water-savings, by lift lock 29 minutes consuming time, the dam is got over by fleet can save 15 fens clock times, can increase 4,000,000 tons of unidirectional navigation abilities in view of the above every year newly.

Buoyancy tank of the present invention submerges in the water in the gate chamber, is linked to be integral body with gate, and the buoyancy that buoyancy tank, gate provided and himself weight is balance roughly, and a less masterpiece of need is used for gate and can opens and closes gate rapidly like this.

In sum, after the technical scheme more than adopting, the present invention can produce simple structure, open beneficial effect quick, that water-saving saves time, improves capacity.

Description of drawings

Fig. 1 is a plan view of the present invention.

Sectional drawing when Fig. 2 is a closing gate of the present invention.

Sectional drawing when Fig. 3 is a closing gate of the present invention.

Among the figure: lock chamber 1, lock chamber wall 2, gate groove 3, gate 4, buoyancy tank 5, weather strip 6, gate chamber 7, regulating box 8, drain hole 9, steam vent 10, outlet valve 11.

The specific embodiment

Below in conjunction with accompanying drawing embodiments of the present invention are described further:

As Figure 1-3, the present invention mainly is made up of gate 4, buoyancy tank 5, gate chamber 7, and buoyancy that buoyancy tank 5, gate 4 are provided and himself weight is balance roughly, and the frictional force that overcomes between gate 4 and other parts of 4 less power of need of lift gate gets final product like this.The present invention can adopt a watt shape monolithic gate 4, the water pressure that gate 4 is subjected to when closed will be passed to and be arranged on the gate groove 3 in the lock chamber wall 2 or protrude on the stressed retaining wall on the lock chamber wall 2, water when only needing contact surface at gate 4 and gate groove 3 and gate chamber 7 tops that the certain flexible weather strip 6 of tool is housed can to guarantee that gate 4 is closed in the lock chamber 1 can seepage not gone out, this gate 4 and miter gate structure compared simpler, stressed more reasonable, the distortion tolerance is big, weight can significantly alleviate.

With behavior example on the ship, gate 4 is contracted in the gate chamber 7 fully in Fig. 2, after the water level of last lower chamber 1 is concordant, ship can sail into the upper chamber 1 from lower chamber 1, thereby charge into the water of gas in by external force lift gate 4 or in the regulating box 8 that outlet valve 11 is closed and in drain hole 9 drains into gate chamber 7, obtain extra buoyancy it, make gate 4 rise to as shown in Figure 3 make position, gate 4 will produce pressure to gate chamber 7 tops, weather strip 6 is set betwixt can avoid water from this position seepage, this moment, upper chamber 1 can retaining, lower chamber 1 sluices, the water pressure that acts on gate 4 can be pushed gate 4 to the retaining wall on the lock chamber wall 2, and both are compressed, in order to avoid water is from seepage between gate 4 and the retaining wall, ship can continue up when upper chamber 1 water level is concordant with upper level lock chamber water level.

In the time of need falling gate 4, by external force pushing gate 4 or unlatching outlet valve 11, the gases in the regulating box 8 are replaced to water through steam vent 10 discharges, the buoyancy late gate 4 that loses regulating box 8 will sink in the gate chamber 7, until gate 4 complete openings.

When reducing gate 4 liftings and the frictional force of gate groove 3 or retaining wall, can on gate chamber 7 or retaining wall, running roller be set, during gate 4 liftings, running roller with gate 4 tops from rubbing surface, gate 4 closed when in place the running roller bullet from gate 4.Steadily carry out for guaranteeing that gate 4 liftings open and close in addition, can establish dynamical system in addition and be controlled.

Claims (6)

1, a kind of buoyancy force type lock gate mainly is made up of gate, buoyancy tank, gate chamber etc., it is characterized in that: buoyancy tank is immersed in the interior water of gate chamber, and buoyancy that buoyancy tank, gate provided and himself weight is balance roughly.

2, gate according to claim 1 is characterized in that: gate is a watt shape monolithic gate.

3, gate according to claim 1 is characterized in that: the lock chamber sidewall is provided with groove or retaining wall.

4, gate according to claim 1 is characterized in that: the contact surface with retaining wall and gate chamber top on the gate is provided with weather strip.

5, gate according to claim 1 is characterized in that: the contact surface with gate on retaining wall and the gate chamber top is provided with weather strip.

6, gate according to claim 1 is characterized in that: the buoyancy adjustment case is set on gate or the buoyancy tank.

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