CN113605325A

CN113605325A - Double-arc gate

Info

Publication number: CN113605325A
Application number: CN202110778260.1A
Authority: CN
Inventors: 赵新
Original assignee: Tianjin University
Current assignee: Tianjin University
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-11-05

Abstract

The invention discloses a double-arc gate, which consists of a gate pier, an upper arc gate, an upper support hinge, a lower arc gate support arm, a lower support hinge and inter-gate water stopping, wherein the gate pier is provided with a connecting shaft, the connecting shaft is connected with the upper support hinge and the lower support hinge, the upper arc gate is connected with the upper support hinge through the upper arc gate support arm, the lower arc gate is connected with the lower support hinge through the lower arc gate support arm, and the inter-gate water stopping is arranged at the lower edge of the upper arc gate or the upper edge of the lower arc gate.

Description

Double-arc gate

Technical Field

The invention relates to the field of ice damage prevention and control in winter water delivery of rivers and channels in cold regions, in particular to a double-arc gate.

Background

In winter in northern China, the climate is cold, and in the position of a gate, a stable ice cover cannot be formed often due to the fact that the section is contracted and the flow velocity is increased. The water drops splashed along with the high-speed water flow can be attached and frozen at positions such as gate piers and gate slots, the freezing thickness and strength are continuously increased, and the opening and closing action of the gate is seriously influenced. Meanwhile, due to the change of water demand of water users, the change of water supply capacity and the development and evolution of ice conditions along the line of the engineering, the gate along the line of the water delivery engineering is usually required to be opened and closed timely so as to strictly control the water delivery flow and the water level. Otherwise, once the ice cover is unstably broken, a large amount of ice can be formed to move along with the water flow. When the water flow velocity is high, ice easily stagnates, submerges and accumulates at the positions of section change, bottom slope change, wading buildings (gates and bridges) and the like to form ice plugs or ice dam disasters, block the water passing section, reduce the section overflowing capacity, possibly cause serious engineering accidents such as cutoff, overflow and the like, and threaten the water delivery safety in winter.

Disclosure of Invention

The invention mainly aims to solve the problem that the gate cannot be opened or closed due to freezing and the like in the winter water delivery process. Because the freezing of the gate pier, the gate groove and the like is mainly caused by the splashing of water drops accompanied with high-speed water flow, the method provided by the invention has the advantages that the opening mode of the traditional gate is changed and compatible, the gate can be controlled according to the original opening mode in summer, the part close to the water surface can be kept still in winter, and the accurate regulation and control of the water delivery flow and the water delivery water level in winter can be realized by regulating the opening degree of the underwater gate. Therefore, the operation regulation and control of water delivery in non-winter can not be influenced, the smooth opening and closing of the winter gate can be ensured, and the safety and stability of water delivery in winter can be ensured.

The purpose of the invention is realized by the following technical scheme:

the utility model provides a double-arc gate, by the gate pier, go up the arc gate, go up support hinge, lower arc gate support arm, under bracing hinge, the stagnant water is constituteed between the door, be provided with the connecting axle on the gate pier, be connected with on the connecting axle and support hinge and under bracing hinge, it is connected with last support hinge through last arc gate support arm to go up the arc gate, and lower arc gate is connected with the under bracing hinge through lower arc gate support arm, the lower edge of going up the arc gate perhaps the upper reason of lower arc gate is provided with stagnant water between the door.

Compared with the prior art, the technical scheme of the invention has the following beneficial effects:

1. the double-arc gate can adopt an upper arc mode and is applied according to a conventional arc gate; a double-arc mode can be adopted, so that the water taking elevation can be flexibly adjusted while the opening degree is adjusted. Meanwhile, the double-arc mode can be applied to winter water delivery engineering in cold regions. Before the stable ice cover is formed, the upper arc gate is opened to a proper position and is basically kept still in the whole winter water delivery process. The adjustment of the gate opening degree in the winter water delivery process is realized by adjusting the position of the lower arc gate. Because the ice slush or the ice cover mainly floats on the water surface, and the lower arc gate is positioned below the water surface, the influence of freezing on the lower arc gate is small, and support is provided for guaranteeing the water delivery safety in winter.

2. The double-arc gate is simple in structure, clear in principle, high in operation stability and flexibility in water taking, can be applied to water delivery in cold regions in winter, and effectively guarantees safety and stability of water delivery in ice period.

Drawings

FIG. 1 is a longitudinal sectional view of a double-arc gate

FIG. 2 is a top view of a double-arc gate

FIG. 3 is a schematic diagram of the upper arc mode

FIG. 4 is a schematic diagram of dual arc mode ON/OFF

Reference numerals: 1-upper arc gate; 2-upper arc gate support arm; 3-upper supporting hinge; 4-lower arc gate; 5-lower arc gate support arm; 6-lower support hinge; and 7, stopping water between doors.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in figures 1 to

A double-arc gate is arranged between two gate piers as shown in figure 1 and comprises an upper arc gate 1, an upper arc gate support arm 2, an upper support hinge 3, a lower arc gate 4, a lower arc gate support arm 5, a lower support hinge 6 and a gate-to-gate water stop 7. The gate pier is provided with a connecting shaft, the connecting shaft is connected with an upper support hinge 3 and a lower support hinge 6, the upper arc gate 1 is connected with the upper support hinge 3 through an upper arc gate support arm 2, the lower arc gate 4 is connected with the lower support hinge 6 through a lower arc gate support arm 5, the upper support hinge 3 and the lower support hinge 6 are connected with the gate pier, and the upper edge of the lower arc gate 4 is provided with an inter-gate water stop 7.

In this embodiment, the upstream water depth is 4 meters, the distance between the two gate piers is 3.6 meters, the radius of the circular arcs of the upper arc gate 1 and the lower arc gate 4 is 3.5 meters, the thickness of the upper arc gate 1 and the lower arc gate 4 is 0.3 meter, the arc length of the upper arc gate 1 is 5.3 meters, and the arc length of the lower arc gate 4 is 5 meters.

The double-arc gate of the invention has two working modes, the first mode is an upper arc mode: the lower arc gate is reset at the initial position, the condition is similar to that of the conventional arc gate, and the opening degree is adjusted by rotating the upper arc gate around the upper support hinge; the second mode is a double-arc mode, in this case, the water intake height of the gate is determined by the position of the lower arc gate, and the opening degree of the gate is determined by the relative positions of the upper arc gate and the lower arc gate.

The present invention is not limited to the above-described embodiments. The foregoing description of the specific embodiments is intended to describe and illustrate the technical solutions of the present invention, and the above specific embodiments are merely illustrative and not restrictive. Those skilled in the art can make many changes and modifications to the invention without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a double-arc gate, its characterized in that by the gate pier, go up the arc gate, go up the support hinge, down the arc gate, down arc gate support arm, under bracing hinge, the stagnant water is constituteed between the door, be provided with the connecting axle on the gate pier, be connected with on the connecting axle and support hinge and under bracing hinge, it is connected with last support hinge through last arc gate support arm to go up the arc gate, and lower arc gate is connected with the under bracing hinge through lower arc gate support arm, the lower edge of going up the arc gate perhaps the last reason of lower arc gate is provided with the stagnant water between the door.