Counter-rotating bidirectional axial flow pump water turbine

A technology of bidirectional axial and flowing water pumps, applied in axial flow pumps, non-displacement pumps, non-variable volume pumps, etc., can solve the problems of low efficiency, achieve good anti-cavitation performance, improve unit efficiency, and compact structure Effect

Active Publication Date: 2019-11-22
利欧集团湖南泵业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two-way operation mode of the tidal unit can provide relatively continuous power, has strong adaptability to the power grid, and can operate with peak regulation. However, when the tidal unit operates in reverse and pumps water, the efficiency is particularly low

Method used

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  • Counter-rotating bidirectional axial flow pump water turbine
  • Counter-rotating bidirectional axial flow pump water turbine
  • Counter-rotating bidirectional axial flow pump water turbine

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0024] Such as figure 1 As shown, the counter-rotating bidirectional axial flow water pump turbine of the present invention includes a pump casing 7, a first fork pipe 4 and a second fork pipe 10; the first fork pipe 4 and the second fork pipe are symmetrically installed on both sides of the pump casing 7 The two-fork pipe 10, the first impeller 6 and the second impeller 8 are symmetrically arranged in the pump housing 7, and the first transmission shaft 14 connected to the first impeller 6 passes through the first fork pipe 4 and is connected with the first generator motor 1 , A first coupling 2 is provided between the first generator motor 1 and the first transmission shaft 14 . A first seal assembly 3 is provided between the first fork tube 4 and the first transmissio...

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Abstract

The invention provides a counter-rotating bidirectional axial flow pump water turbine. The counter-rotating bidirectional axial flow pump water turbine comprises a pump case and branch pipes; the branch pipes are symmetrically mounted on two sides of the pump case; impellers are symmetrically arranged in the pump case; transmission shafts of the impellers penetrate through the branch pipes to be connected with transmission components; the transmission shafts are provided with guide vane assemblies moving in the axial direction; the guide vane assemblies are positioned near the impellers; eachguide vane assembly comprises a movable guide vane, a guide shaft and a guide vane housing; the guide vane housings are mounted between the branch pipes and the pump case; axial guide slots are formedin the guide vane housings; the movable guide vanes are connected with the transmission shafts through sliding bearings; ends of the movable guide vanes are positioned in the axial guide slots; the guide shafts are mounted at ends of the blades of the movable guide vanes; and the guide shafts are connected with driving mechanisms through transmission mechanisms, and are used for enabling the movable guide vanes to axially move. The pump device efficiency is improved by adjusting the gaps between the impellers and the guide vanes.

Description

technical field [0001] The invention relates to an axial flow pump device, in particular to a counter-rotating bidirectional axial flow water pump turbine. Background technique [0002] As a renewable energy source, tidal energy is efficient, clean, and can be developed and applied on a large scale. The two-way operation mode of the tidal unit can provide relatively continuous power, has strong adaptability to the power grid, and can operate with peak regulation. However, when the tidal unit operates in reverse and pumps water, the efficiency is particularly low. Due to the higher efficiency, more compact structure, more stable performance curve and better anti-cavitation performance of the counter-rotating unit, the anti-rotating technology is applied to the tidal power station, and it is expected that the unit can be improved more effectively on the basis of giving full play to the advantages of power generation. The performance of the pumping condition provides more pote...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B13/26F03B3/12F03B3/18F04D3/00F04D13/06F04D29/18F04D29/54
CPCF03B3/126F03B3/18F03B13/264F04D3/00F04D13/06F04D29/181F04D29/548F05B2220/706Y02E10/20
Inventor 安策朱荣生王秀礼陈一鸣龙云
Owner 利欧集团湖南泵业有限公司
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