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Design Method of Triple Eccentric Butterfly Valve with Perfect Circular Section

A triple-eccentric butterfly valve and design method technology, which is applied in the direction of calculation, valve lift, valve device, etc., can solve the problems of difficult parameter selection and easy interference of triple-eccentric butterfly valves, and achieve the effect of convenient inspection, convenient design, and overcoming interference

Active Publication Date: 2018-10-02
XIHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the parameter selection of the triple eccentric butterfly valve is difficult and prone to interference, and the patent does not involve the corresponding design method

Method used

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  • Design Method of Triple Eccentric Butterfly Valve with Perfect Circular Section
  • Design Method of Triple Eccentric Butterfly Valve with Perfect Circular Section
  • Design Method of Triple Eccentric Butterfly Valve with Perfect Circular Section

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0041] Such as figure 1 as shown, figure 1 It shows the structure of a three-eccentric butterfly valve with a perfect circular cross-section according to an embodiment of the present invention. A triple-eccentric butterfly valve with a perfect circular cross-section includes a valve seat 3, a valve plate 2 and a rotating shaft 1. The valve seat 3 adopts an inner elliptical conical surface It forms a static sealing surface. The valve plate 2 adopts an outer elliptical conical surface to form a dynamic sealing surface. The rotating shaft 1 is eccentrically connected with the valve plate. The dynamic sealing surface and the static sealing surface form a pair of hard sealing pairs. The cooperation between the static sealing surface and the dynamic sealing surface realizes sealing, and all the cross-sections on...

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Abstract

The invention discloses a design method of a three-eccentric center butterfly valve with a perfect circle section. The three-eccentric center butterfly valve comprises a valve base, a valve plate and a rotating shaft. A static sealing face of the valve base is formed through an inner elliptical conic face, and a movable sealing face of the valve plate is formed through an outer elliptical conic face. The rotating shaft is eccentrically connected with the valve plate. The static sealing face and the movable sealing face are matched to achieve sealing, and all sections perpendicular to the center line of a flow passage on the valve base / the valve plate are in the shape of a perfect circle. According to the design method of the three-eccentric center butterfly valve with the perfect circle section, 1, friction is reduced in the whole opening and closing process; 2, design of the three-eccentric center butterfly valve and parameter selection and optimization are facilitated; and 3, three-eccentric center butterfly valve interference can be conveniently checked, and the problem that interference is likely to appear in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of triple-eccentric butterfly valves, in particular to a design method for a triple-eccentric butterfly valve with a perfect circular section. Background technique [0002] Butterfly valve refers to a valve in which the disc-shaped valve plate (butterfly plate) rotates around the valve stem to achieve opening and closing. It mainly plays the role of cutting off and throttling the pipeline, and is widely used in engineering. The traditional centerline butterfly valve has been improved many times, and single eccentric (axial eccentric), double eccentric (axial eccentric, radial eccentric), triple eccentric (axial eccentric, radial eccentric, angular eccentric) butterfly valves have been developed successively. The sealing surface of the triple eccentric butterfly valve is gradually released and gradually pressed against the sealing surface of the valve seat, so that the purpose of reducing friction is achieved...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/22G06F17/50
CPCF16K1/22G06F30/17
Inventor 杨昌明刘渝段胜秋蒋文芝童俊王宇
Owner XIHUA UNIV
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