CN113718722A

CN113718722A - Sluice of top overflow

Info

Publication number: CN113718722A
Application number: CN202111237341.7A
Authority: CN
Inventors: 田维伟; 田志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2021-11-30

Abstract

The invention relates to a water gate with overflow at the top, which is characterized in that: a gate bottom water passing weir (13) is arranged between the two gate piers (11) and the gate bottom plate (12), the whole gate leaf structure is placed on the gate bottom water passing weir (13), and the gate leaf comprises a water facing panel (10), an overflow panel (6), a first transverse main beam (9), a second transverse main beam (20), a first vertical main beam (4) and a second vertical main beam (19) to form a gate leaf main body; the overflow panel (6) is arranged on the back of the water-facing panel (10) and is connected with the main beam structure, the upper end of the overflow panel (6) is smoothly and fixedly connected with the gate top overflow weir (2), the lower end of the overflow panel (6) is fixedly connected with the flip bucket (7), and the first vertical main beam (4) and the second vertical main beam (19) are respectively and fixedly provided with the support arm (5). The device does not need to frequently adjust the opening of the gate to adapt to the upstream water inflow, and avoids the problems of scouring, vibration and the like caused by small-opening high-speed discharge of the gate.

Description

Sluice of top overflow

Technical Field

The invention belongs to the technical field of hydraulic machinery, and particularly relates to a top overflow sluice which can be applied to occasions with water retaining requirements, certain water level needs to be maintained and certain flow can pass through under the designed water level in hydraulic engineering and can be conveniently opened and closed.

Background

The water gate has the basic function of regulating water flow to control the water level and flow of river, reservoir, canal and other water bodies, and may be opened and closed conveniently to realize flexible water resource scheduling. For example, in a river sluice of some river channels, in a time period with small rainfall, the water amount in a basin is small, the sluice gate is closed, the water is retained in the river channel to form a landscape or become water for industrial, agricultural production and living, the retention time of the water body is greatly prolonged, and the local ecological environment and the underground water environment are improved; when the capacity of the river channel is exceeded, the gate is opened, so that the water flow enters the downstream. For another example, some water diversion gates can be opened when needed to introduce the water body to a needed area. At present, the common gates include a flat gate and a radial gate, and in a large gate, the radial gate is often adopted due to better stress structure and water flow condition, and the radial gate is taken as an example in the description. The artificial facilities for controlling the water level and the flow are numerous, various dams, dikes and walls can be used, but the buildings only can play a role of retaining water, the water level is controlled to a certain elevation, and dangerous situations or overflowing water often occur when the water level exceeds the elevation. The water level can be controlled to reach the designed elevation by the water passing weir and the dam, the water level can flow over from the top when the water level is higher than the designed elevation, under the conditions of large water amount and short time period, the water depth is not large due to the limitation of a weir water head, the overflow is small, the upstream water level is choked, and the upstream flooding disaster is caused. The common scheme for solving the problem is to adopt water gates and other water retaining buildings to retain water, and various water gates can conveniently open the door body under the action of opening and closing equipment, so that water flow can be quickly discharged at a large water depth and a large flow, and the door body can be quickly closed to store the water quantity. The rubber dam can also play the same role, but the rubber dam has certain application conditions, and can be selected for use according to actual conditions and use conditions so as to ensure safe operation of engineering and good effect. The sluice arranged on the river channel generally has larger overflow and larger overflowing water depth, which aims to ensure that the sluice has enough overflowing capacity during flood running and ensure the safety of sluice engineering and upstream and downstream river channels. However, in many cases, the strength of the upstream incoming water is not high, but the duration is long, in order to ensure the upstream water level to store the water storage amount, the gate needs to drain the water flow with a small opening degree, frequently opens and adjusts the opening degree at any time to adapt to the upstream incoming water amount, if the adjustment is not timely, the upstream water level may be raised to cause the submergence loss, or the excessive flow rate is too high to cause the water loss; meanwhile, under the condition of high water head, the outflow velocity of the gate bottom is high, and scouring damage can be caused to water stop, the bottom edge of the gate blade and the gate bottom plate.

Therefore, the invention needs to invent a gate capable of overflowing through the top of the gate to adapt to the requirements of high-water-level and low-flow water passing, and the gate can meet the requirements of overall rigidity and deformation under the overflow water level through design calculation. Through experimental research, the top overflow gate can avoid frequent opening and closing of the gate and adjustment of the opening degree through top overflow of the gate under the condition that water continuously flows at the upstream at a small flow rate, and has a good effect.

Disclosure of Invention

The purpose of the invention is to realize the overflow of the top of the sluice gate so as to avoid the frequent opening and closing of the sluice gate and avoid the passive and frequent adjustment of the opening of the sluice gate so as to adapt to the upstream water flow. For convenience of description, the radial gate and the slip stream are taken as examples for explanation. The sluice chambers are built according to the relevant sluice specifications; the basic structure of the gate is also designed according to specifications.

The technical scheme adopted for realizing the purpose of the invention is as follows: the utility model provides a sluice of top overflow, includes two floodgate piers, is equipped with gate bottom plate, its characterized in that between two floodgate piers: the gate blade comprises a water-facing panel, an overflow panel, a first transverse main beam, a second transverse main beam, a first vertical main beam and a second vertical main beam which form a gate blade main body; the overflow panel sets up at the back of the panel of meeting water and links together with the girder structure, the smooth-going fixed connection floodgate top overflow weir in the upper end of overflow panel, the smooth-going fixed connection bucket of throwing of the lower extreme of overflow panel, the both sides of overflow panel are fixed respectively and are set up first manger plate curb plate and second manger plate curb plate, floodgate top overflow weir, first manger plate curb plate, the second manger plate curb plate, overflow panel and the bucket of throwing are constituteed and are flowed the overflow structure, fix first floodgate top breakwater and second floodgate top breakwater respectively in the top both sides of the panel of meeting water, first floodgate top breakwater and second floodgate top breakwater are connected with the second side breakwater and the first side breakwater of overflow panel respectively, a fixed mounting support arm on first vertical girder and the vertical girder of second respectively. The tail ends of the two support arms are respectively provided with a support arm pin shaft hole and fixed on a hinged support through a pin shaft, the hinged support is fixed on a support bracket pier, and the support bracket pier and the gate pier are cast into a whole to resist the water pressure transmitted by the gate leaf.

The door leaf of gate is the arc form, at the top both sides of arc form door leaf, is equipped with the manger plate roof, and the interlude is equipped with arc overflow weir, establishes the overflow face between gate downstream side, two brachies, establishes the bucket of choosing in the bottom, with rivers flip out the lock chamber, gets into the rivers entering low reaches river course after the low reaches energy dissipation section carries out the energy dissipation. Baffles are arranged between the two support arms and on two sides of the overflow surface and connected with the top water retaining top plate to restrain water flow between the two support arms. When the water gate is scheduled to run, when the overflow water depth at the top of the gate exceeds a certain depth (the maximum is not higher than the water baffle at the top), the water volume is large, namely the gate is opened to drain water.

The invention realizes the overflow of the gate top under the condition of small flow, leads the water flow out of the gate chamber, does not need to open the gate for small-opening leakage when the flow is small, and frequently adjusts the gate opening to adapt to the upstream water flow. The problems of scouring, vibration and the like caused by small-opening high-speed discharge of the gate are avoided. The supporting structure of the invention can be adjusted according to the stress condition.

The invention can be applied to the radial gate and the flat gate, the outflow mode can be a flip outflow mode or an underflow outflow mode, and the invention is smoothly connected with a downstream bottom plate, so that the water flow enters the downstream.

Description of the drawings:

the attached figure is a structural schematic diagram of the invention, and the structures of the door leaf and the lock chamber are strictly symmetrical about a longitudinal central plane.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a rear view of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is an enlarged schematic view of a top gate weir according to the present invention;

fig. 5 is an enlarged schematic view of the support structure of the present invention.

In the figure, 1, a first gate top water baffle; 2. a gate top overflow weir; 3. a first side water baffle; 4. a first vertical main beam; 5. a support arm; 6. an overflow panel; 7. a flip bucket; 8. a support arm pin shaft hole; 9. a first transverse main beam; 10. a water-facing panel; 11. a gate pier; 12. a gate floor; 13. the gate bottom passes through a weir; 14. supporting a bracket pier; 15. a hinged support; 16. a pin shaft; 17. a second gate top water baffle; 18. a second side water baffle; 19. a second vertical main beam; 20. the second transverse main beam.

Detailed Description

Referring to the drawings, a sluice gate with top overflow comprises two gate piers 11, and a gate bottom plate 12 is arranged between the two gate piers 11, and is characterized in that: a gate bottom water passing weir 13 is arranged between the two gate piers 11 and the gate bottom plate 12, the whole gate leaf structure is placed on the gate bottom water passing weir 13, the two gate piers 11, the gate bottom plate 12 and the gate bottom water passing weir 13 form a water retaining gate leaf supporting structure, and the gate leaf comprises a water facing panel 10, an overflow panel 6, a first transverse main beam 9, a second transverse main beam 20, a first vertical main beam 4 and a second vertical main beam 19 which form a gate leaf main body; the overflow panel 6 is arranged on the back of the water-facing panel 10 and is connected with the main beam structure, the upper end of the overflow panel 6 is smoothly and fixedly connected with a gate top overflow weir 2, the lower end of the overflow panel 6 is fixedly connected with a flip bucket 7, the two sides of the overflow panel 6 are respectively and fixedly provided with a first water retaining side plate 3 and a second water retaining side plate 18, the gate top overflow weir 2, the first water retaining side plate 3, the second water retaining side plate 18, the overflow panel 6 and the flip bucket 7 form an overflow structure, the first gate top water retaining plate 1 and the second gate top water retaining plate 17 are respectively fixed on the two sides of the top end of the water-facing panel 10, the first gate top water retaining plate 1 and the second gate top water retaining plate 17 are respectively connected with the second side water retaining plate 18 and the first side water retaining plate 3 of the overflow panel 6, and a support arm 5 is respectively and fixedly arranged on the first vertical main beam 4 and the second vertical main beam 19. The tail ends of the two support arms 5 are respectively provided with a support arm pin shaft hole 8 which is fixed on a hinge support 15 by a pin shaft 16, the hinge support 15 is fixed on a support bracket pier 14, and the support bracket pier 14 and the gate pier 11 are cast into a whole to resist the water pressure transmitted by a gate leaf.

The working process of the invention is as follows:

when the upstream water level is higher than the top elevation of the gate top overflow weir 2, the overflow is started, the water flow enters the flip bucket 7 through the gate top overflow weir 2 and the overflow panel 6, enters the energy dissipation facility for energy dissipation and then enters the downstream river channel. The water flow is restrained by the first gate top water baffle 1, the second gate top water baffle 17 and the first side water baffle 3 and the second side water baffle 18 to avoid the left and right support arms 5 and other structures of the door leaf.

When the overflow water level of the gate top is higher than the designed value, the upstream water inflow is large, the overflow flow of the gate top cannot meet the requirement, and the gate can be opened to discharge flood.

Claims

1. The utility model provides a sluice of top overflow, includes two floodgate piers (11), is equipped with between two floodgate piers (11) floodgate bottom plate (12), its characterized in that: a gate bottom water passing weir (13) is arranged between the two gate piers (11) and the gate bottom plate (12), the whole gate leaf structure is placed on the gate bottom water passing weir (13), the two gate piers (11), the gate bottom plate (12) and the gate bottom water passing weir (13) form a water retaining gate leaf supporting structure, and the gate leaf comprises a water facing panel (10), an overflow panel (6), a first transverse main beam (9), a second transverse main beam (20), a first vertical main beam (4) and a second vertical main beam (19) which form a gate leaf main body; the overflow panel (6) is arranged on the back of the water-facing panel (10) and connected with the main beam structure, the upper end of the overflow panel (6) is smoothly and fixedly connected with the gate top overflow weir (2), the lower end of the overflow panel (6) is fixedly connected with the flip bucket (7), the two sides of the overflow panel (6) are respectively and fixedly provided with a first water retaining side plate (3) and a second water retaining side plate (18), the gate top overflow weir (2), the first water retaining side plate (3), the second water retaining side plate (18), the overflow panel (6) and the flip bucket (7) form an overflow structure, the two sides of the top end of the water-facing panel (10) are respectively and fixedly provided with a first gate top water retaining plate (1) and a second gate top water retaining plate (17), the first gate top water retaining plate (1) and the second gate top water retaining plate (17) are respectively connected with the second side water retaining plate (18) and the first side water retaining plate (3) of the overflow panel (6), the first vertical main beam (4) and the second vertical main beam (19) are respectively and fixedly provided with a support arm (5).

2. The top overflow floodgate of claim 1, wherein: the tail ends of the two support arms (5) are respectively provided with a support arm pin shaft hole (8) which is fixed on a hinged support (15) by a pin shaft (16), the hinged support (15) is fixed on a support bracket pier (14), and the support bracket pier (14) and the gate pier (11) are cast into a whole to resist the water pressure transmitted by a gate leaf.