Vortex eliminating floating mat for surface hole of sluice

Abstract

The utility model provides a sluice surface hole vortex eliminating floating mat which comprises a front cross beam, a rear cross beam, longitudinal beams and a floating plate, the front cross beam and the rear cross beam are arranged in parallel at intervals, at least two longitudinal beams are connected between the front cross beam and the rear cross beam, the front cross beam, the rear cross beam and the longitudinal beams form a floating mat frame, and the floating plate is installed on the floating mat frame. The vortex eliminating floating mat is arranged in front of a gate of the surface hole flood discharge building, the surface hole flood discharge building comprises a gate pier body, a water passing flow channel arranged on the gate pier body, accident gate grooves formed in the two sides of the water passing flow channel and water retaining gates arranged on the water passing flow channel and located on the rear portions of the accident gate grooves, the rear cross beam is placed in the accident gate grooves, and the vortex eliminating floating mat floats on the water surface. And part of the water pipe extends into water. The vortex eliminating floating mat is arranged in front of the gate, when the gate is partially opened, the vortex eliminating floating mat frame structure can play a role in blocking or weakening vortex, vortex in front of the gate can be effectively reduced, the flow state in front of the gate is optimized, flood discharge flow is increased, and operation safety of the gate is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of flow state optimization of water conservancy and hydropower engineering, in particular to a vortex-eliminating floating row for a surface hole of a sluice gate. Background Art

[0002] In water conservancy and hydropower projects, when the gates of discharge structures are partially opened, the vortex on the water surface in front of the gates changes the smooth flow state in front of the gates, causing turbulent water flow through the gates, which may affect the safety of the gates and the efficiency of flood discharge.

[0003] Nowadays, some vortex elimination measures such as vortex elimination beams can effectively weaken or eliminate vortices, but the water level in front of the gate is changing, and the vortex elimination beams need to be set up densely enough to ensure that the vortex elimination effect can be achieved under various water level conditions. The disadvantage of vortex elimination beams is that they increase head loss, and their application is limited in some projects; buoy-type vortex elimination floating objects will move with the vortex. First, they may collide with the side wall due to being close to the side wall, and second, suddenly opening the gate may cause the vortex elimination structure to be swept away due to increased downward suction. Therefore, setting up a vortex elimination measure that changes with the water level, does not produce collisions, and will not be swept away by the water flow can greatly solve the vortex problem encountered in actual projects. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a vortex-eliminating floating row on the surface hole of a sluice gate, which can not only ensure that the sluice gate can discharge normally, but also optimize the flow state before the sluice gate of the sluice gate, increase the flow capacity, and at the same time ensure the safety of the building and the vortex-eliminating structure.

[0005] In order to achieve the above purpose, the following technical means are specifically adopted:

[0006] A vortex-eliminating floating row for a surface hole of a sluice gate comprises a front crossbeam, a rear crossbeam, a longitudinal beam and a floating plate. The front crossbeam and the rear crossbeam are arranged in parallel and at intervals, at least two longitudinal beams are connected between the front crossbeam and the rear crossbeam, the front crossbeam, the rear crossbeam and the longitudinal beams form a floating row frame, and the floating plate is installed on the floating row frame; the vortex-eliminating floating row is placed in front of a gate of a surface hole flood discharge structure, the surface hole flood discharge structure comprises a gate pier body, a water flow channel arranged on the gate pier body, an accident gate slot arranged on both sides of the water flow channel and a water retaining gate arranged on the water flow channel and located at the rear of the accident gate slot, the rear crossbeam is placed in the accident gate slot, the vortex-eliminating floating row floats on the water surface and partially extends into the water.

[0007] Furthermore, the front cross beam, the rear cross beam and the longitudinal beam are made of rigid materials.

[0008] Furthermore, the water retaining gate is a radial gate or a flat gate.

[0009] The beneficial effects of the utility model are:

[0010] The utility model places the vortex-eliminating floating discharge in front of the sluice gate, which effectively avoids the generation of water surface vortices during the partial opening of the gate to discharge flow, optimizes the flow state through the gate, increases the flow rate through the gate, and ensures the safety of the gate. At the same time, the structure changes with the water level, ensuring the vortex-eliminating and vortex-removing effects under various operating conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a side view of the vortex-eliminating floating row of the surface hole of the sluice gate of the utility model;

[0012] Figure 2 It is a top view of the vortex-eliminating floating row of the surface hole of the sluice gate of the utility model;

[0013] Figure 3 It is a three-dimensional diagram of the vortex-eliminating floating row of the surface hole of the sluice gate of the utility model;

[0014] Figure 4 The utility model is a stereoscopic diagram of a sluice gate surface hole vortex elimination floating row arranged in front of the sluice gate.

[0015] In the figure: 1—rear crossbeam, 2—front crossbeam, 3—longitudinal beam, 4—floating plate, 5—gate pier body, 6—water flow channel, 7—water retaining gate, 8—accident gate slot. DETAILED DESCRIPTION

[0016] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0017] like Figure 1-4 As shown, a vortex-eliminating floating row for the surface orifice of a sluice gate comprises a front crossbeam 2, a rear crossbeam 1, a longitudinal beam 3, and a floating plate 4. The front crossbeam 2 and the rear crossbeam 1 are arranged in parallel and spaced apart, at least two longitudinal beams 3 are connected between the front crossbeam 2 and the rear crossbeam 1, and the front crossbeam 2, the rear crossbeam 1, and the longitudinal beams 3 form a floating row frame, on which the floating plate 4 is installed. The vortex-eliminating floating row is placed in front of the gate of the surface orifice flood discharge structure, and the surface orifice flood discharge structure comprises a gate pier body 5, a water flow channel 6, a water retaining gate 7, and an accident gate slot 8.

[0018] The front cross beam 2, the rear cross beam 1 and the longitudinal beam 3 form a floating frame, which can be supported by any rigid material, such as stainless steel. The floating plate 4 provides buoyancy so that the floating frame will not sink to the bottom and ensures that the frame has a certain submerged depth. It can be made of any material that provides buoyancy, such as steel pipes.

[0019] The vortex-eliminating floating discharge is placed in front of the water retaining gate 7 of the water discharge structure, and the water retaining gate 7 can be a curved gate or a flat gate.

[0020] The frame structure composed of the front cross beam 2, the rear cross beam 1 and the longitudinal beam 3 is not limited to one combination form, and the number of the middle longitudinal beams 3 can be customized according to actual conditions. The specific placement method of the vortex-eliminating floating row in front of the water retaining gate 7 is as follows: the rear cross beam 1 is placed in the accident gate groove 8, which plays a role in fixing the horizontal position of the vortex-eliminating floating row.

[0021] Before the water retaining gate 7, when the gate opening is too large or fully opened, it can be lifted out of the water surface by mechanical means.

[0022] The working principle of the utility model is to use the front crossbeam 2, the rear crossbeam 1, and the longitudinal beam 3 to make a floating row frame, and install a floating plate 4 on the floating row frame to form a vortex-eliminating floating row. After the vortex-eliminating floating row is placed in the water, the buoyancy of the floating plate 4 makes the vortex-eliminating floating row float in the water, and at the same time, the floating row frame is partially submerged in the water. The vortex-eliminating floating row is placed in front of the gate 7 of the surface hole flood discharge structure, and the rear crossbeam 1 is placed in the accident gate groove 8, which plays a role in fixing the position of the vortex-eliminating floating row in the horizontal direction. When the water retaining gate 7 is partially opened, a vortex is generated on the water surface in front of the gate. The frame structure of the vortex-eliminating floating row floats on the water surface, and the vortex path is partially blocked in the water, destroying or weakening the vortex, optimizing the flow state through the gate, increasing the flow through the gate, and ensuring the safety of the gate; at the same time, the vortex-eliminating floating row changes with the water level, ensuring the vortex-eliminating and vortex-eliminating effect under various operating conditions.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the utility model should be included in the scope of protection of the claims of the utility model.

Claims

1. A sluice gate surface hole vortex elimination floating row, characterized in that: It includes a front crossbeam, a rear crossbeam, a longitudinal beam, and a floating plate. The front crossbeam and the rear crossbeam are arranged in parallel and at intervals. At least two longitudinal beams are connected between the front crossbeam and the rear crossbeam. The front crossbeam, the rear crossbeam, and the longitudinal beams form a floating row frame. The floating row frame is installed with a floating plate. The vortex-eliminating floating row is placed in front of the gate of the surface hole flood discharge structure. The surface hole flood discharge structure includes a gate pier body, a water flow channel arranged on the gate pier body, an accident gate slot arranged on both sides of the water flow channel, and a water retaining gate arranged in the water flow channel and located at the rear of the accident gate slot. The rear crossbeam is placed in the accident gate slot. The vortex-eliminating floating row floats on the water surface and partially extends into the water.

2. The vortex-eliminating floating row for the surface opening of a sluice gate according to claim 1, characterized in that: The front cross beam, rear cross beam and longitudinal beam are made of rigid materials.

3. The vortex-eliminating floating row for the surface opening of a sluice gate according to claim 1, characterized in that: The water retaining gate is a radial gate or a flat gate.

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