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Rectangular-section adjustable cavitation venturi tube with large-range flow adjustment function

A technology of flow regulation and rectangular cross-section, which is applied in the field of aerospace and aviation, and can solve problems such as difficult to achieve large-scale flow regulation and small area changes

Active Publication Date: 2021-07-30
BEIHANG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of this application is to provide a rectangular cross-section adjustable cavitation venturi with large-scale flow adjustment, to a certain extent, to solve the problem of the ring formed by the cooperation of the circular constricted cross-section and the circular valve core used in the prior art. The area of ​​the slotted cross-section does not change much, and it is difficult to achieve a technical problem of large-scale flow regulation

Method used

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  • Rectangular-section adjustable cavitation venturi tube with large-range flow adjustment function
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  • Rectangular-section adjustable cavitation venturi tube with large-range flow adjustment function

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Embodiment Construction

[0039] The technical solutions of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0040] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a spec...

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Abstract

The invention relates to the technical field of aerospace, and particularly relates to a rectangular-section adjustable cavitation venturi tube with a large-range flow adjustment function. The rectangular-section adjustable cavitation venturi tube with the large-range flow adjustment function comprises a driving component, a sliding block and a base; a first groove is formed in the base; an output shaft of the driving component is connected with the sliding block and can drive the sliding block to move in the first groove in the first direction; a rectangular flow channel is formed between the bottom wall of the sliding block and the bottom wall of the first groove; and when the driving component drives the sliding block to move in the first groove in the first direction, the section area of the rectangular flow channel can be changed so as to adjust and control the flow of liquid or gas. According to the rectangular-section adjustable cavitation venturi tube, the section area of the rectangular flow channel is directly changed through the driving component, and large-range flow adjustment can be achieved.

Description

technical field [0001] The present application relates to the field of aerospace technology, in particular to a cavitation venturi with adjustable rectangular cross-section for large-scale flow adjustment. Background technique [0002] The existing adjustable cavitation venturi tube is usually a circular cross-section, through the mutual cooperation of the movable valve core and the contraction section, throat, and expansion section, the minimum flow cross-sectional area at the throat is adjusted, so as to achieve the purpose of adjusting the flow rate . [0003] When the adjustable cavitation venturi tube is used to adjust the flow rate, since the area of ​​the annular seam section formed by the cooperation of the circular shrinkage section and the circular valve core does not change much, it is usually difficult to achieve a wide range of flow adjustment. [0004] Therefore, there is an urgent need for a rectangular cross-section adjustable cavitation venturi with large-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/02F16K3/314F16K3/34F16K27/04F16K31/50
CPCF16K3/0254F16K3/0209F16K3/314F16K3/34F16K27/044F16K31/508
Inventor 田辉张源俊谭广姜宪珠孟祥宇
Owner BEIHANG UNIV
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