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Flange joint for tubular member

A technology of tubular components and couplings, applied in the direction of pipes/pipe joints/pipes, through components, flange connections, etc., can solve the problems of long-term manufacturing process and high manufacturing cost, and achieve shortening manufacturing process, reducing cost, The effect of reducing manufacturing costs

Inactive Publication Date: 2009-09-23
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the flange coupling for tubular members disclosed in the above-mentioned Patent Document 1, the flange coupling that is connected (bonded, connected) to the lower end or upper end of the tubular member by a weld is Tubular sections are manufactured by machining
Therefore, there is a problem that the manufacturing process takes a long time and the manufacturing cost rises.

Method used

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  • Flange joint for tubular member
  • Flange joint for tubular member
  • Flange joint for tubular member

Examples

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Embodiment Construction

[0033] Below, refer to figure 1 and figure 2 One embodiment of the flange coupling for tubular members (hereinafter referred to as "flange coupling") of the present invention will be described.

[0034] figure 1 To show a side view of a wind turbine for wind power generation equipped with the flange coupling of this embodiment, figure 2 for figure 1 Longitudinal section view of the main part.

[0035] Such as figure 1 As shown, a windmill 1 for wind power generation has a pillar (also referred to as a "tower") 2 vertically arranged on a foundation B, a nacelle 3 arranged on the upper end of the pillar 2, and is rotatable around a substantially horizontal axis and arranged on the nacelle 3 The rotor head 4.

[0036] On the rotor head 4, a plurality of (for example, three) windmill rotor blades 5 that are radial around its axis of rotation are installed. As a result, the wind force blown to the windmill rotor 5 from the direction of the rotation axis of the rotor head 4...

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Abstract

Disclosed is a flange joint for tubular members, which is shortened in manufacturing process and reduced in manufacturing cost. Specifically disclosed is a flange joint (8) for tubular members, which connects tubular members (7) together by being joined with the lower end or upper end of tubular members (7) at an upper end of the peripheral portion or at a lower end of the peripheral portion. This flange joint (8) for tubular members is provided with a groove (16) having a generally U-shaped cross section on the surface which is joined with the tubular member (7) in the circumferential direction at a radially inner position relative to the position at which the tubular member (7) is joined thereto.

Description

technical field [0001] The present invention relates to a flange coupling for tubular members that connects (couples, connects) tubular members constituting, for example, a pillar of a wind turbine for wind power generation. Background technique [0002] As a flange coupling for tubular members that connects tubular members constituting a pillar of a wind turbine for wind power generation, for example, a structure disclosed in Patent Document 1 is known. [0003] Patent Document 1: Japanese PCT Publication No. 2004-525293 [0004] However, in the flange coupling for a tubular member disclosed in the aforementioned Patent Document 1, the tubular portion connected (bonded, connected) to the lower end or upper end of the tubular member by a weld is manufactured by cutting. Therefore, there arises a problem that the manufacturing process takes a long time and the manufacturing cost increases. Contents of the invention [0005] The present invention has been made in view of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H12/08
CPCF16L23/026E04H12/085E04H12/08
Inventor 沼尻智裕
Owner MITSUBISHI HEAVY IND LTD