Method and device for quickening water filling and pressure relief of plane gate

A flat gate, horizontal pressure technology, applied in water conservancy projects, hydropower, hydropower stations, etc., can solve problems such as imperfection, large gate slot size, increased main beam height, etc., to reduce maintenance time, reduce The effect of local deformation and instability, and speeding up the water filling speed

Active Publication Date: 2015-11-25
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in water conservancy and hydropower projects, water inlet or discharge hole accident gates generally use water filling valves for filling and hydraulic pressure. According to the current gate lifting points, there are two types: single lifting point and double lifting point. A gate is usually equipped with at most two If the diameter of the water filling valve is too large, the strength of the main girder web of the gate will be weakened, and the height of the main girder must be increased. The phenomenon of cavitation erosion is especially prominent for high head discharge gates. Therefore, the diameter of domestic water filling valves generally does not exceed 600mm. For diversion or discharge tunnels with a diameter of less than 10m and a length of less than 1 kilometer, the wat

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  • Method and device for quickening water filling and pressure relief of plane gate
  • Method and device for quickening water filling and pressure relief of plane gate
  • Method and device for quickening water filling and pressure relief of plane gate

Examples

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Effect test

Example Embodiment

[0042] Example 1

[0043] The schematic diagram of the structure of a device for accelerating the filling level of a plane gate according to the present invention is as follows Figure 1-9 As shown, three gate filling valves 1 are installed on the top of the gate, a balance lifting beam device 2 is installed on the upper part of the gate filling valve 1, and the upper part of the balanced lifting beam device 2 is connected with the hoist head 3, and the balance lifting The lower part of the beam device 2 is connected with the gate filling valve 1.

[0044] See Picture 8 , A downwardly inclined water filling valve tube 4 is set at the corresponding position of the gate and the lower part of the gate filling valve 1. The downwardly inclined axis of the filling valve tube 4 is at an angle of 20° to the horizontal. Therefore, when filling water at the gate , Can reduce the damping of the water flow, speed up the water flow rate, and increase the water filling speed.

[0045] See figur...

Example Embodiment

[0053] Example 2

[0054] The structure diagram of a device for accelerating the level of filling and pressing of a plane gate of the present invention is as follows Figure 14-19 As shown, five gate filling valves 1 are installed on the top of the gate, and a balance lifting beam device 2 is installed on the upper part of the gate filling valve 1. The upper part of the balanced lifting beam device 2 is connected with the hoist head 3, and the balance lifting The lower part of the beam device 2 is connected with the gate filling valve 1.

[0055] See Picture 8 , A downwardly inclined water filling valve tube 4 is set at the corresponding position of the gate and the lower part of the gate filling valve 1. The downwardly inclined axis of the filling valve tube 4 is at an angle of 45° to the horizontal. Therefore, when filling the gate, It can reduce the damping of the water flow, speed up the flow rate of the water, and increase the water filling speed.

[0056] See Figure 15 , Th...

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Abstract

The invention discloses a method and a device for quickening water filling and pressure relief of a plane gate. According to the method, a balance suspension girder unit is added between a hoist suspension head and gate water filling valves, the upper portion of the balance suspension girder unit is made to be fixedly connected with the hoist suspension head through a lug, and the lower portion of the balance suspension girder unit is made to be fixedly connected with lugs on the gate water filling valves through suspension head units, accordingly the hoist suspension head can hoist the balance suspension girder unit to achieve simultaneous opening of the gate water filling valves. By means of the method and the device for quickening water filling and pressure relief of the plane gate, the water filling speed can be over 3 times that in the prior art, the water filling speed of the gate is improved greatly, overhauling and maintenance time of tunnels is shortened, and benefits of power generation of a power station are improved while the safe operation of the power station is effectively guaranteed.

Description

technical field [0001] The invention relates to a method and a device for accelerating the water filling pressure of a planar gate, belonging to the technical field of gates of water conservancy and hydropower projects. Background technique [0002] At present, in water conservancy and hydropower projects, water inlet or discharge hole accident gates generally use water filling valves for filling and hydraulic pressure. According to the current gate lifting points, there are two types: single lifting point and double lifting point. A gate is usually equipped with at most two If the diameter of the water filling valve is too large, the strength of the main girder web of the gate will be weakened, and the height of the main girder must be increased. The phenomenon of cavitation erosion is especially prominent for high head discharge gates. Therefore, the diameter of domestic water filling valves generally does not exceed 600mm. For diversion or discharge tunnels with a diamete...

Claims

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Application Information

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IPC IPC(8): E02B9/06
CPCY02E10/20
Inventor 王兴恩徐祎谭守林王勇陈寅其
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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