CN106320284A - Double-leaf hydraulic gate capable of being opened and closed under effect of gravity - Google Patents

Abstract

The invention discloses a double-leaf hydraulic gate opened and closed by gravity, which is characterized in that: a double-leaf gate consisting of an upper gate and a lower gate is arranged in the gate hole; , a fixed pulley is installed on the top beam, and the upper gate and the lower gate are suspended on the fixed pulley by a fixed-length steel cable and can be translated up and down; the upper gate is provided with a water storage chamber, and the upper gate can be increased by filling the water storage chamber The weight of the upper gate is lowered and the lower gate is raised until the gate is closed; or the water in the storage chamber is discharged to reduce the weight of the upper gate, so that the upper gate is raised and the lower gate is lowered until the gate is opened; it is set under the gate bottom plate U-shaped submerged gate groove, the lower gate sinks in when the gate is opened. The invention relies on gravity to realize opening and closing, which can greatly save construction cost and operation management cost, and improve the reliability of sluice operation.

Description

A double-leaf hydraulic gate with gravity opening and closing

technical field

The invention relates to a hydraulic gate, more specifically a double-leaf hydraulic gate which divides the gate into two, realizes opening and closing by gravity, and lowers the gate to dive.

Background technique

At present, the commonly used hydraulic gates in my country mainly include vertical plane steel gates, arc gates and traditional double-leaf gates. The phenomenon of opening and closing failure or failure to open and close occurs from time to time due to overload or insufficient power. High-power hoists have certain requirements for power distribution infrastructure. This makes the traditional hydraulic gate technology not match the actual operating environment in the environment of deviation conditions, such as small and medium-sized reservoirs with small storage capacity and high water head in mountainous areas, which reduces the reliability of sluice operation. At the same time, the existing hydraulic gates are all opened upwards, resulting in excessive structural height of the hoisting platform and poor seismic capacity of the structure.

Contents of the invention

In order to avoid the deficiencies in the above-mentioned prior art, the present invention proposes a double-leaf hydraulic gate with gravity opening and closing, in order to avoid the use of high-power hoists for remote mountainous areas, small reservoirs with deviations in basic conditions, small reservoirs, high and medium water heads The unique driving form and tall gate structure reduce the size and weight of a single gate, increase the anti-seismic performance, improve the reliability of the sluice operation, and ensure the safe and reliable operation of water conservancy facilities.

The present invention adopts following technical scheme for solving technical problems:

The structural characteristics of the double-leaf hydraulic gate with gravity opening and closing of the present invention are:

The gate hole is formed by the gate piers on both sides and the gate bottom plate, and a double-leaf gate is set in the gate hole, and the double-leaf gate is divided into an upper gate and a lower gate; the bent frame supporting the gate includes a top beam and a T-shaped section A column, a fixed pulley is fixed at the bottom of the top beam, and the gate is located in the section formed by the gate pier, the gate bottom plate, the column and the top beam;

The upper gate lug is set on the top of the upper gate, the lower gate lug is set on the top of the lower gate, and the two ends of the fixed-length steel cable bypassing the fixed pulley are fixedly connected with the upper gate lug and the lower gate lug respectively , so that the upper gate and the lower gate are suspended by fixed-length steel cables in a vertical state and can be translated up and down in the corresponding upper gate groove and lower gate groove;

The upper gate is set to have an inner cavity, and the inner cavity is used as a water storage cavity, and the water storage cavity is respectively provided with a top water inlet, a bottom drain and a top air hole, and the top water inlet is used to flow into the inner cavity. Inject water to increase the weight of the upper gate, use the bottom drain to discharge the water stored in the inner cavity to reduce the weight of the upper gate, use the top vent hole to realize exhaust or air intake during water injection or drainage, in the A control valve is set on the bottom drain;

make:

The weight of the lower gate is W11, and the maximum buoyancy force on the lower gate is W12; and: W1=W11-W12;

The weight of the upper gate when the inner cavity is emptied is W2, and the weight when the inner cavity is filled with water is W3;

The W1, W2, W3 and W11 satisfy the first condition and the second condition at the same time:

Condition 1: W2 is less than W1, so that when the inner cavity of the upper gate is emptied, the lower gate can be lowered by gravity, and the gate is opened;

Condition 2: W11 is less than W3, so that after the inner cavity of the upper gate is filled with water, the upper gate can descend by gravity and the gate is closed;

A U-shaped submerged gate groove is set in the foundation below the gate floor at the section where the lower gate is located, so that the lower gate can completely sink into the U-shaped submerged gate groove when it descends; the U-shaped submerged gate The structural space of the gate slot is surrounded by the downward extension of the gate pier on the left and right sides, the side walls of the U-shaped submerged gate slot on the upstream and downstream sides, and the bottom plate of the U-shaped submerged gate slot;

The matching height of the length of the fixed-length steel cable and the upper gate and the lower gate is set as follows: when the upper gate rises to the maximum opening, the lower gate is completely sunk in the U-shaped submerged gate groove, and the gate is in a fully open state; After the gate is lowered and the lower gate is raised, the upper gate and the lower gate are vertically butted up and down in the river channel, and the gate is in a fully closed state.

The structural characteristics of the double-leaf hydraulic gate with gravity opening and closing of the present invention also lie in:

A water inlet pipe, a water injection pump and a water suction pipe are sequentially connected to the water inlet at the top of the upper gate, the water suction pipe is located upstream of the gate and arranged close to the gate pier, the water injection pump is fixedly arranged on the side wall of the gate pier, and the water inlet pipe Use flexible pipes to connect with the top water inlet;

When the upstream side reaches the set gate opening water level, open the control valve on the bottom drain of the upper gate, so that the upper gate rises after draining water, and at the same time the lower gate descends to realize gate opening control;

When the upstream side reaches the set closing water level, close the bottom drain and turn on the water injection pump, so that the upper gate will descend after water injection, and at the same time, the lower gate will rise and fall to realize gate closing control.

The structural characteristics of the double-leaf hydraulic gate with gravity opening and closing of the present invention also lie in:

The scouring and silting water inlet pipe is set in the pier on one side of the U-shaped submerged gate groove and the downspout of the sluice pier. The water intake of the scouring and silting water inlet pipe is located on the upstream side and above the gate floor. The water intake of the scouring and silting inlet pipe is provided with a water intake control valve, and the outlet of the scouring and silting inlet pipe is located at the bottom of the corresponding side of the U-shaped diving gate groove; the bottom of the other side of the U-shaped diving gate groove is connected to discharge pipe; the first half of the discharge pipe is arranged in the downward extension of the pier on the other side of the U-shaped submerged gate groove, the second half of the discharge pipe is buried in the foundation, and the outlet of the discharge pipe is located on the downstream side for stilling on the slope of the pool;

When the gate is closed, the water intake control valve is opened, the U-shaped submerged gate groove is scoured through the scour inlet pipe, and the sewage is discharged through the discharge pipe.

The structural characteristics of the double-leaf hydraulic gate with gravity opening and closing of the present invention also lie in:

A concave upper gate groove is arranged vertically downward on the side of the gate pier along the inner knuckle of the T-shaped section column near the gate side. The bottom of the upper gate groove should ensure the closing stroke of the upper gate and serve as the down stop;

A concave lower gate groove is arranged vertically downward on the side of the gate pier along the flange side of the T-shaped cross-section column near the gate side, and the lower gate groove is smoothly connected with the U-shaped submerged gate groove and forms a connection.

The structural characteristics of the double-leaf hydraulic gate with gravity opening and closing of the present invention also lie in:

A 45° slope of the upper gate is set on the bottom edge of the upper gate and towards the downstream side, a 45° slope of the lower gate is set on the top edge of the lower gate and towards the upstream side, the 45° slope of the upper gate and the lower gate The 45° slope fits together when the gate is fully closed.

Compared with the prior art, the beneficial effects of the present invention are reflected in:

1. The present invention relies on gravity to realize the opening and closing of the gate, cancels the high-power hoist, hoist room and corresponding power distribution facilities, and greatly saves the cost and operation management costs;

2. The present invention divides the general flat gate into two to form a double gate. The single gate is small in size, simple in overall structure, low in cost and easy to implement;

3. The lower gate of the present invention adopts the submerged type, does not occupy the upper space, effectively reduces the overall height of the hydraulic structure, saves the cost, improves the seismic stability of the building, and simultaneously acts as an anti-seepage body;

4. The present invention can realize automatic control with the setting of the control circuit, and has more advantages in sluice projects with a slightly higher water retaining height, especially suitable for remote mountainous areas, and can realize unattended and remote control.

Description of drawings

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

Fig. 2 a is the schematic diagram of I-I sectional structure among Fig. 1;

Fig. 2b is the schematic diagram of II-II sectional structure in Fig. 1;

Fig. 3a is a schematic diagram of a section structure of III-III in Fig. 2a;

Fig. 3b is a schematic diagram of IV-IV sectional structure in Fig. 2a;

Fig. 4 is a V-V sectional view in Fig. 3a;

Fig. 5a is a VI-VI sectional view of the left gate pier in Fig. 3a;

Fig. 5b is a sectional view of pier VII-VII on the left side in Fig. 3a;

Fig. 5c is a sectional view of the left gate pier column VIII-VIII in Fig. 3a;

Numbers in the figure: 1 gate pier, 2 gate floor, 3 upper gate, 4 lower gate, 5 column, 6 top beam, 7 fixed pulley, 8 upper gate lug, 9 lower gate lug, 10 steel cable, 11 upper gate Groove, 12 lower gate groove, 13 water inlet, 14 drain outlet, 15 ventilation hole, 16 is U-shaped submerged gate groove, 17 water inlet pipe, 18 water injection pump, 19 water suction pipe, 20 silting water inlet pipe, 21 water intake control valve , 22 discharge pipe, 23 slope surface of stilling pool, 24 45° slope of the upper gate, 25 45° slope of the lower gate, 26 downward extension of the gate pier, 27 is the side wall of the U-shaped diving gate groove, 28 is the U-shaped diving Gate slot bottom plate.

detailed description

The structural form of the double-leaf hydraulic gate with gravity opening and closing in this embodiment is:

Referring to Fig. 1, Fig. 2a, Fig. 2b, Fig. 3a and Fig. 3b, in this embodiment, gate holes are formed by gate piers 1 on both sides and gate bottom plates 2, and double-leaf gates are arranged in the gate holes, and the double-leaf gates are separately arranged as The upper gate 3 and the lower gate 4 are pulled up and down; the bent frame supporting the gate includes a top beam 6 and a T-shaped section column 5, and a fixed pulley 7 is fixed at the bottom of the top beam 6. , In the section formed by the column 5 and the top beam 6.

As shown in Fig. 2a, Fig. 2b, Fig. 3a and Fig. 3b, in the present embodiment, the upper gate lug 8 is set on the top of the upper gate 3, and the lower gate lug 9 is set on the top of the lower gate 4, and the fixed pulley 7 is bypassed. The two ends of the long steel cable 10 are fixedly connected with the upper gate lug 8 and the lower gate lug 9 respectively, so that the upper gate 3 and the lower gate 4 are suspended by the fixed-length steel cable 10 in a vertical state and can be mounted on the corresponding upper gate. The up-and-down translation linkage in the groove 11 and the lower gate groove 12, due to the linkage of the fixed-length cable 10, when the upper gate 3 rises, the lower gate 4 descends; and when the upper gate 3 descends, the lower gate 4 rises.

As shown in Figure 2a, the upper gate 3 is provided with an inner chamber, and the inner chamber is used as a water storage chamber, and the water storage chamber is provided with a top water inlet 13, a bottom discharge port 14 and a top vent hole 15; the top water inlet 13 is used to inject water into the inner chamber To increase the weight of the upper gate 3, use the bottom drain port 14 to discharge the water stored in the inner cavity to reduce the weight of the upper gate 3, and use the top vent hole 15 to realize exhaust or air intake during water injection or drainage. 14 is provided with a control valve for realizing controllable drainage of the upper gate 3 .

Order: the weight of the lower gate 4 is W11, and the maximum buoyancy of the lower gate is W12; and: W1=W11-W12; the weight of the upper gate 3 when the inner cavity is emptied is W2, and the weight when the inner cavity is filled with water is W3; W1, W2, W3, and W11 satisfy Condition 1 and Condition 2 at the same time: Condition 1: W2 is less than W1, so that when the inner cavity of the upper gate 3 is emptied, the lower gate 4 can descend by gravity, and the gate opens; Condition 2 : W11 is less than W3, so that after the inner cavity of the upper gate 3 is filled with water, the upper gate 3 can descend by gravity, and the gate is closed.

The height of the top beam 2 should meet the opening degree of the gate opening capacity and the requirements for lifting the upper gate 3 and the lower gate 4 for maintenance.

As shown in Figure 2a, in this embodiment, a U-shaped submerged gate groove 16 is set in the foundation below the gate floor 2 at the section where the lower gate 4 is located, so that the lower gate 4 can completely sink into the U-shaped submerged gate groove 16 when descending. Middle: The U-shaped submerged gate groove 16 structure space is surrounded by the pier extensions 26 on the left and right sides, the U-shaped submerged gate groove side walls 27 on the upstream and downstream sides, and the U-shaped submerged gate groove bottom plate 28 . Fig. 2a, Fig. 2b, Fig. 3b and Fig. 4 show the structural sections of the U-shaped submerged gate groove 16 at different positions, and an anti-collision buffer structure can be arranged on the top surface of the bottom plate of the U-shaped submerged gate groove 16.

The matching height of the length of the fixed-length steel cable 10 and the upper gate 3 and the lower gate 4 is set to be: when the upper gate 3 rises to the maximum opening, the lower gate 4 is completely sunk in the U-shaped diving gate groove 16, and the gate is fully Open state; after the upper gate 3 descends and the lower gate 4 rises, the upper gate 3 and the lower gate 4 vertically butt up and down in the river channel, and the gate is fully closed.

In specific implementation, the corresponding structural settings also include:

As shown in Figure 2a, a water inlet pipe 17, a water injection pump 18 and a water suction pipe 19 are sequentially connected to the top water inlet 13 of the upper gate 3. The water suction pipe 19 is located upstream of the gate and is arranged close to the gate pier, and the water injection pump 18 is located on the side wall of the gate pier 1. Fixed arrangement, the water inlet pipe 17 is connected with the water inlet 13 using a flexible pipe.

When the upstream side reaches the set gate opening water level, open the control valve on the drain port 14 of the upper gate 3, so that the upper gate 3 rises after draining water, and the lower gate 4 descends at the same time to realize gate opening control; when the upstream side reaches the set When closing the gate water level, close the drain port 14 and open the water injection pump 17, so that the upper gate 3 descends after water injection, and the lower gate 4 rises and falls simultaneously to realize gate closing control.

Fig. 1, Fig. 2a, Fig. 3a, Fig. 4 and Fig. 5a show the schematic cross-sectional structure of the scour-silting inlet pipe 20 at different positions. The scour-silting inlet pipe 20 is set in the section 26, and the water intake of the scour-silting inlet pipe 20 is located on the upstream side and above the gate floor 2. A water intake control valve 21 is set at the water intake of the scour-silting inlet pipe 20, and the scour-silting inlet pipe 20 The outlet of 20 is located at the bottom of the corresponding side of the U-shaped submerged gate groove 16, and the bottom of the other side of the U-shaped submerged gate groove 16 is connected with the discharge 22.

Fig. 1, Fig. 2b, Fig. 3a, Fig. 3b and Fig. 4 show the schematic cross-sectional structure of the discharge pipe 22 at different positions, the first half of the discharge pipe 22 is arranged on the other side of the U-shaped submerged gate groove 16 In the downward extension section 26 , the second half of the discharge pipe 22 is buried in the foundation, and the outlet of the discharge pipe is located on the slope surface 23 of the stilling pool on the downstream side.

When the gate is closed, the water intake control valve 21 is opened, and the U-shaped submerged gate groove 16 is washed and silted through the scouring and silting inlet pipe 20, and the sewage is discharged through the discharge pipe 22, which is bent at the inlet level to extend down the gate pier After the end face of the downstream side of the section 26, it should be arranged in a straight line with the outlet on the slope surface 23, and be located under the gate pier, so as to ensure that the pipeline is short and the sewage is discharged smoothly.

In specific implementation, the corresponding structural settings also include:

Fig. 1, Fig. 2a, Fig. 2b, Fig. 3a and Fig. 5b show the schematic cross-sectional structure diagrams of the upper gate groove 11 at different positions, and Fig. The inner knuckle near the gate side of the T-shaped cross-section column 5 is arranged vertically downward on the pier side of the concave upper gate groove 11, and the bottom of the upper gate groove 11 should ensure the closing stroke of the upper gate 3 and serve as Down stop; Fig. 1, Fig. 2a, Fig. 2b, Fig. 3b, Fig. 5a and Fig. 5b have provided the cross-sectional structural representation of the lower gate slot 12 at different positions, vertically along the side of the flange side of the T-shaped cross-section column 5 near the gate side. A concave lower gate groove 12 is arranged straight downward on one side of the gate pier, and the lower gate groove 12 is smoothly connected with the U-shaped submerged gate groove 16 to form a connection.

As shown in Figures 2a and 2b, in this embodiment, a 45° slope 24 of the upper gate is provided on the bottom edge of the upper gate 3 and toward the downstream side, and a 45° slope of the lower gate is provided on the top edge of the lower gate 4 and toward the upstream side. 25. The 45° inclined surface 24 of the upper gate and the 45° inclined surface 25 of the lower gate are fitted together under the fully closed state of the gate.

Way of working:

When the gate needs to be closed, the water injection pump 18 is started to take water from the river, and water is injected into the cavity of the upper gate 3 through the water suction pipe 19, the water inlet pipe 17, and the top water inlet 13. As the amount of injected water increases, the upper gate 3 The weight of the gate gradually increases, and when the weight difference between the upper and lower gates is sufficient to overcome resistance such as friction, under the linkage of the fixed-length steel cable 10, the upper gate 3 moves downward and the lower gate 4 ascends until the gate is closed;

When the gate needs to be opened, the bottom drain port 14 on the upper gate 3 is opened, the water in the cavity of the upper gate 3 is discharged, and the weight of the upper gate 3 is gradually reduced as the water is discharged until the difference in gravity of the two gates is enough to overcome friction, etc. When there is resistance, under the linkage of the fixed-length steel cable 10, the upper gate 3 goes up and the lower gate 4 goes down until the gate is opened;

When it is necessary to wash and silt the U-shaped submerged gate groove 16, in the closed state, open the control valve 21, divert water through the scouring and silted inlet pipe 20, and pass through the flow formed by the lower gate 4 and the U-shaped submerged gate groove 16. The silting water flow is discharged directly to the stilling basin downstream of the sluice through the discharge pipe 22 on the other side.

Claims (5)

1. double door leafs hydraulic gate that gravity opens and closes, is characterized in that:

Being formed lock hole by both sides gate pier (1) and gate floor (2), arrange double leaf gate in described lock hole, described double leaf gate divides Body is set to upper lock gate (3) and tail gates (4)；The framed bent supporting gate includes back timber (6) and T section column (5), described The bottom of back timber (6) is fixed with fixed pulley (7), and gate is positioned at by described gate pier (1), gate floor (2), column (5) and back timber (6) In the section formed；

Upper lock gate hanger (8) is set at the top of described upper lock gate (3), tail gates hanger is set at described tail gates (4) top (9) two ends of the fixed length steel cable (10), walking around fixed pulley (7) are fixing with upper lock gate hanger (8) and tail gates hanger (9) respectively to be connected Connect, make described upper lock gate (3) and tail gates (4) utilize fixed length steel cable (10) suspention in vertical state and can correspondence brake application Gate slot (11) and the linkage of tail gates groove (12) interior upper and lower translation；

Arranging described upper lock gate (3) and have inner chamber, with described inner chamber as storage chamber, described storage chamber is respectively provided with top water inlet (13), bottom discharge mouth (14) and top vent hole (15), utilize described top water inlet (13) in described inner chamber water filling with Increase the weight of upper lock gate (3), utilize described bottom discharge mouth (14) to discharge the water-retention in inner chamber to alleviate the weight of upper lock gate (3) Amount, utilizes described top vent hole (15) to realize the aerofluxus when water filling or draining or air inlet, described bottom discharge mouth (14) On be provided with control valve；

Order:

The weight of tail gates (4) is W11, and suffered by tail gates, maximum buoyancy is W12；And have: W1=W11-W12；

The upper lock gate (3) weight when internal vent is W2, and the weight when inner chamber water-filling is W3；

Described W1, W2, W3 and W11 meet condition one and condition two simultaneously:

Condition one: W2 is less than W1 so that when the internal vent of upper lock gate (3), tail gates (4) can decline according to gravity, gate Open；

Condition two: W11 is less than W3 so that after the inner chamber water filling of upper lock gate (3), upper lock gate (3) can decline according to gravity, gate Close；

U-shaped dive gate slot (16) is set in the ground below of described tail gates (4) place cross section place gate floor (2), makes Described tail gates (4) can sink in described U-shaped dive gate slot (16) completely when declining；Described U-shaped dive gate slot (16) structure space is by the section of stretching (26), upstream and downstream both sides U-shaped dive gate slot sidewall (27) and U-shaped under the gate pier of the left and right sides Dive gate slot base plate (28) is gone along with sb. to guard him and is formed；

The engagement height of the length and upper lock gate (3) and tail gates (4) that arrange described fixed length steel cable (10) is: on upper lock gate (3) When rising to aperture maximum, tail gates (4) sink to completely in U-shaped dive gate slot (16), and gate is full-gear；Upper lock gate (3) decline and after tail gates (4) rising, described upper lock gate (3) and tail gates (4) longitudinally dock in river course up and down, gate In full off state.

Double door leafs hydraulic gate that gravity the most according to claim 1 opens and closes, is characterized in that:

The top water inlet (13) of described upper lock gate (3) is sequentially connected with water inlet pipe (17), water injecting pump (18) and suction hose (19), described suction hose (19) is positioned at gate upstream and arranges near gate pier, and described water injecting pump (18) is fixing on gate pier (1) sidewall Arranging, described water inlet pipe (17) uses flexible duct to be connected with top water inlet (13)；

Upstream side reach setting open a sluice gate water level time, open the control valve on the bottom discharge mouth (14) of upper lock gate (3), make brake application Door (3) rises after draining, tail gates (4) decline simultaneously, it is achieved open a sluice gate to control；

Upstream side reach setting close water seal position time, close bottom discharge mouth (14), open water injecting pump (17), make upper lock gate (3) Decline after charging, simultaneously the upper fall of tail gates (4), it is achieved close lock control.

Double door leafs hydraulic gate that gravity the most according to claim 1 opens and closes, is characterized in that:

Under the side gate pier (1) and gate pier of described U-shaped dive gate slot (16), in the section of stretching (26), erosion and deposition water inlet pipe (20) is set, The intake of described erosion and deposition water inlet pipe (20) is positioned at upstream side and is in the top of gate floor (2), at described erosion and deposition water inlet pipe (20) intake arranges water intaking control valve (21), and the outlet of described erosion and deposition water inlet pipe (20) is positioned at U-shaped dive gate slot (16) Correspondence one side bottom；Delivery pipe (22) is connected in the bottom of the opposite side of described U-shaped dive gate slot (16)；Described delivery pipe (22) first half section is arranged under the opposite side gate pier of described U-shaped dive gate slot (16) in the section of stretching (26), delivery pipe (22) Second half section is embedded in ground, and the outlet of delivery pipe is positioned on downstream stiling basin slope (23)；

When closing gate, open described water intaking control valve (21), through erosion and deposition water inlet pipe (20), U-shaped dive gate slot (16) is entered Row erosion and deposition, and carry out blowdown by delivery pipe (22).

Double door leafs hydraulic gate that gravity the most according to claim 1 opens and closes, is characterized in that:

Along the nearly gate side of described T section column (5), knuckle arranges female brake application gate slot straight down in gate pier side (11), what the bottom of described brake application gate slot (11) should ensure that upper lock gate (3) closes lock stroke, and as upper lock gate (3) decline only Gear；

Nearly gate side wing edge side vertical along described T section column (5) arranges downwards female tail gates groove in gate pier side (12), described tail gates groove (12) docks and is formed through with U-shaped dive gate slot (16) smooth-going.

Double door leafs hydraulic gate that gravity the most according to claim 1 opens and closes, is characterized in that:

On the base of described upper lock gate (3) and arrange 45 ° of inclined-planes (24) of upper lock gate towards side, downstream, in described tail gates (4) Top margin and to arrange 45 ° of inclined-planes (25) of tail gates, 45 ° of inclined-planes (24) of described upper lock gate and tail gates 45 ° towards upstream side oblique Face (25) fits under gate full off state.