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Pipeline flow field uniformizing device achieving flow distortion self-adjustment

A self-adjusting and uniform technology, applied in the direction of fluid flow, pipe components, pipes/pipe joints/fittings, etc., can solve the problems of less research on rectification, achieve strong environmental adaptability, compact structure, and reduce flow noise intensity.

Pending Publication Date: 2018-09-28
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, in the field of flow field noise control of water medium pipelines, there are few studies on the rectification of the flow field at the inlet of the equipment, the flow field after the valve, and the bend, especially the adaptive uniform rectification of the flow field in the finite length of the pipe section. installation

Method used

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  • Pipeline flow field uniformizing device achieving flow distortion self-adjustment
  • Pipeline flow field uniformizing device achieving flow distortion self-adjustment
  • Pipeline flow field uniformizing device achieving flow distortion self-adjustment

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Embodiment Construction

[0028] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0029] as attached figure 1 with 2 As shown, the present invention provides a pipeline flow field uniform device for self-adjusting flow distortion. The device includes an outer sleeve 1 , guide vanes 2 and an inner liner 3 .

[0030] as attached image 3 Shown, guide vane 2 is made up of rigid body 4 and flexible body 5, also can directly use the guide vane of flexible body. The cross-sectional shape of the guide vane 2 generally adopts the NACA blade shape, but is not limited to the NACA blade shape. The radial guide line of the guide vane is not limited to a straight line, but can be a straight line plus an arc or other curve, that is, a curved and twisted guide vane type is formed. The spacing of the guide blades in the circumferential direction is not limited, and the number of rows of blades is not limited.

[0031] as attached Image 6 As show...

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Abstract

The invention discloses a pipeline flow field uniformizing device achieving flow distortion self-adjustment and belongs to the technical field of noise control of aqueous medium pipeline flow fields.The pipeline flow field uniformizing device achieving flow distortion self-adjustment comprises an outer sleeve, flow guide blades and an inner lining pipe. The inner lining pipe is coaxially locatedin the outer sleeve. The flow guide blades are circumferentially distributed in an annular cavity between the inner lining pipe and the outer sleeve. The upper end and the lower end of each flow guideblade are fixedly connected with the outer sleeve and the inner lining pipe correspondingly. The flow guide blades conduct flow channel division in the circumferential direction on fluid. The pipeline flow field uniformizing device is connected with a front pipeline and a back pipeline through flanges at the two ends of the outer sleeve. The pipeline flow field uniformizing device achieving flowdistortion self-adjustment can conduct self-adaptive rectifying and uniformizing on the flow field within a limited length under the condition that the flow uniformity of the flow field is poor; and under the condition that the uniformity of the flow field is good, the pipeline flow field uniformizing device achieving flow distortion self-adjustment cannot cause a large side effect on the flow field.

Description

technical field [0001] The invention relates to the technical field of water medium pipeline flow field noise control, in particular to a flow field uniform device installed at equipment inlets and downstream of valves and elbows where the flow field distortion of pipelines is large. Background technique [0002] In large ships and warships, with the application of a large number of vibration isolation devices, the noise transmitted by the equipment through the base has been greatly reduced, and the system pipeline has become the main transmission path of noise. The system pipeline has the characteristics of various media, wide working pressure and temperature ranges, scattered space layout of the system pipeline network, complex direction, numerous interfaces, various connection forms, and limited control measures, which also increases the difficulty of system pipeline noise control. There are two main ways to reduce the noise of the system pipeline: (1) reduce the radiated...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15D1/04F15D1/06F16L55/02
CPCF15D1/04F15D1/06F16L55/02
Inventor 亢维佳刘海建鲁民月姚伍平卢兆刚李红钢
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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