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A water suction pipe underwater combined blade vortex elimination device

A combined, water-absorbing pipe technology, which is applied in the configuration of water supply devices, water supply pools, buildings, etc., can solve the problems of insignificant vortex elimination effect, and achieve the effects of improving the efficiency of water pump devices, eliminating water flow circulation, and good inflow conditions

Active Publication Date: 2018-02-23
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-vortex and vortex elimination devices commonly used at present include devices such as diversion piers, bottom sills, pressure water plates, diversion cones, and cross vortex elimination plates, but the vortex elimination effect of these devices is not significant

Method used

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  • A water suction pipe underwater combined blade vortex elimination device
  • A water suction pipe underwater combined blade vortex elimination device
  • A water suction pipe underwater combined blade vortex elimination device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] This embodiment includes a water inlet pool whose length ratio between the long side and the high side of the pool body is 3:2, and a water-absorbing horn tube inlet 100 is arranged above the bottom plate 101 of the pool body, and the diameter of the water-absorbing horn tube is 3.5m. The suspended height is 2.17m.

[0035] The device of the present invention is installed on the bottom plate 101 of the water inlet tank directly below the water-absorbing trumpet pipe inlet 100, and it includes a barrier device 1 fastened to the bottom plate 101. The barrier device 1 is composed of two vertically arranged and crossed The first baffle plate 11 and the second baffle plate 12 are composed, the height of both baffle plates is 0.5m, and the thickness is 0.2m. The barrier device 1 is connected to a fixed guide device 3 through a vertically arranged connecting shaft 2 . The distance from the upper end of the fixed guiding device 3 to the inlet 100 of the suction trumpet is 0.1 ...

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Abstract

The invention provides a water absorption tube underwater combined blade vortex-eliminating device, comprising a separating-blocking device; the top end of the separating-blocking device is connected with one end of a connecting shaft in a fastening way, and the other end of the connecting shaft is connected with a fixed guide device in the fastening way; a vortex-eliminating mechanism rotationally connected with the connecting shaft rotatably sleeves the connecting shaft; the center line of the separating-blocking device, the center line of the fixed guide device, the center line of the vortex-eliminating mechanism and the center line of the connecting shaft are mutually superposed. A bottom plate of a water inlet pool is connected with the separating-blocking device in the fastening way, the separating-blocking device is connected with the fixed guide device by means of the connecting shaft, and the vortex-eliminating mechanism rotationally connected with the connecting shaft sleeves the connecting shaft between the fixed guide device and the separating-blocking device, so that vortex and flow separation in a water absorption tube of a water pump can be effectively reduced or eliminated, and a better inflow condition is provided for the water pump.

Description

technical field [0001] The invention relates to an underwater combined blade vortex elimination device of a water suction pipe, which belongs to the technical field of water conservancy engineering. Background technique [0002] The water inlet tank is a pumping station hydraulic structure where the water pump inlet pipe is installed for the pump to absorb water. It is generally arranged between the forebay and the pump room or under the pump room to provide good water inlet conditions for the pump inlet. The internal flow state directly affects the pump. The efficiency and stability of station unit operation. If the flow velocity in the inlet pool is unevenly distributed, or even vortex occurs, these factors will significantly reduce the performance of the pump, causing the pump unit to vibrate violently and fail to operate. The existing water inlet pools will generate vortices during operation, which are generally divided into two types: surface vortex and wall-attached v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03B11/00E03B5/00
CPCE03B5/00E03B11/00
Inventor 唐学林高慧武志兴
Owner CHINA AGRI UNIV
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