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The cover plate of the self-flow drainage hole in the volute layer of the underground powerhouse

A self-flowing drainage and underground powerhouse technology, which is applied to drainage structures, waterway systems, water supply devices, etc., can solve problems affecting load bearing and safety, corrosion, personal safety threats, etc., to facilitate promotion and implementation, improve safety, and effect good effect

Active Publication Date: 2015-11-18
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the completion of the project, the power station has entered the operation period. The cover plate has been left in a cold and humid environment for a long time, and a large amount of corrosion has occurred, which affects its load-bearing capacity and safety. It may pose a threat to personal safety, so it needs to be replaced.

Method used

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  • The cover plate of the self-flow drainage hole in the volute layer of the underground powerhouse
  • The cover plate of the self-flow drainage hole in the volute layer of the underground powerhouse
  • The cover plate of the self-flow drainage hole in the volute layer of the underground powerhouse

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Experimental program
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Effect test

Embodiment 1

[0022] Embodiment 1: see figure 1 and figure 2 , the cover plate of the artesian drainage hole in the volute layer of the underground powerhouse is designed. At the bottom of each side around the rectangular outer frame 1, there are respectively provided bottom plates that are inclined downward, and one of the inclined bottom plates 2 is shown in Figure 6 , each side inclined to the bottom 2 is sequentially connected to form a funnel-shaped overflow port. Vertical straight sides 9 are arranged below the two opposite inclined base plates 2, and a rotating shaft 4 is installed between the vertical straight sides 9 on both sides, and a flat cover plate 3 is arranged on the rotating shaft 4. The sides are respectively welded with inherent gaskets 5, and the gaskets 5 are provided with shaft holes, and the rotating shaft 4 is installed in the shaft holes on both sides.

[0023] From Figure 7 and Figure 8 It can be seen that the rotating shaft 4 is located at the eccentric p...

Embodiment 2

[0026] Embodiment 2: the accompanying drawings are not drawn, the content is basically the same as that of embodiment 1, and the similarities will not be repeated. The difference is that an airtight structure is set between the two sides of the plane cover plate and the limit plate and the baffle respectively, for example, in On the basis that the flat cover plate and the limiting plate are fitted with an inclined surface, a flexible sealing strip is arranged on the inclined surface.

Embodiment 3

[0027] Embodiment 3: see Figure 9 , the content is basically the same as that of Embodiment 1, and the similarities will not be repeated. The difference is that the baffle plate 6 is set as a channel-shaped steel with its notch facing downwards, and a flexible sealing layer can be set in the notch.

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Abstract

The invention discloses an underground workshop spiral case floor gravity drainage tunnel cover plate. Inclined bottom plates disposed at the bottom of an outer frame enclose a funneled flow hole. A meshed cover plate is nested in the outer frame. Two sides of the flow hole are provided with rotating shafts which locate at eccentric positions of a planar cover plate. Two sides of the planar cover plate are provided with a limit plate and a retaining plate respectively. The planar cover plate automatically closes the flow hole under the action of gravity. The underground workshop spiral case floor gravity drainage tunnel cover plate has the advantages that the planar cover plate can automatically close under the action of gravity when no water is present; when water falls in, the inclined floor gathers the water; under the action of water pressure, the planar cover plate inclines to allow the water to flow to the low position, the cover plate is automatically opened, and the water falls into a sewer; safety can be improved, underground sewage and odor in an underground workshop is prevented from reversely rushing out of the flow hole, and workshop sanitation is improved; the cover plate is effective in use, is resistant to rusting and capable of resisting wind in a gravity drainage tunnel, and meets the requirements of the spiral case floor drainage ditch and the flooded workshop for drainage.

Description

technical field [0001] The invention relates to the technical field of underground drainage, in particular to a cover plate for an artesian drainage hole in a volute layer of an underground powerhouse. Background technique [0002] The original cover plate of the artesian drainage tunnel in the volute layer of the underground powerhouse adopts a grid-shaped square carbon steel cover plate, which meets the requirements of the construction period. However, with the completion of the project and the power station entering the operation period, the cover plate has been left in a cold and humid environment for a long time, and a large amount of corrosion has occurred, which affects its load-bearing capacity and safety, and may pose a threat to personal safety, so it needs to be replaced. [0003] The newly laid cover plate must meet the requirements of anti-corrosion, blocking the wind force of the artesian drainage tunnel, and meeting the drainage requirements of the drainage di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03F5/04E03F5/06
CPCY02A30/60
Inventor 陈照阳刘鹏龙王洋
Owner STATE GRID CORP OF CHINA
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