Butterfly valves and construction machinery
A technology for construction machinery and butterfly valves, applied in the field of butterfly valves and construction machinery, can solve the problems of increased investment, inconvenient on-site installation and maintenance, easy deformation, etc., and achieves the effects of good sealing effect, simple structure and low cost
Active Publication Date: 2018-06-29
CHINA SHENHUA ENERGY CO LTD +2
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- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Most of the existing butterfly valves use contact seals. Because the baffle itself is not rigid enough and easy to deform, the effect of contact seals is not ideal.
Existing butterfly valves usually reduce deformation by increasing rigidity, but the equipment is bulky, the investment is increased, and on-site installation and maintenance are extremely inconvenient
Method used
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[0022] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0023] In the present invention, unless otherwise stated, the orientation words used should be properly understood in conjunction with the directions shown in the drawings of the description or the directions in actual use.
[0024] The present invention provides a butterfly valve, which includes a valve plate assembly and a valve body assembly, the valve plate assembly is mounted on the valve port of the valve body assembly through a rotating shaft, the valve plate assembly can rotate relative to the valve body assembly, Wherein, a flexible seal 1 is at least partly provided on the periphery of the valve plate assembly, and the flexible seal 1 can sealably coop...
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The invention relates to the field of engineering machinery and discloses a butterfly valve and an engineering machine. The butterfly valve comprises a valve plate assembly and a valve body assembly. The valve plate assembly is installed on a valve port of the valve body assembly though a rotary shaft. The valve plate assembly can rotate relative to the valve body assembly. The circumferential edges of the valve plate assembly is at least partially provided with a flexible sealing member (1). The flexible sealing member (1) can matched with the inner wall of the valve port in a sealed mode. The insufficient sealing effect caused by the low rigidity and liable deformation of the valve plate assembly can be solved through the flexible sealing member. According to the technical scheme, the flexible sealing member can ensure the sealing is good through the pressure of sealed media when the valve plate assembly is deformed to a certain extent; the butterfly valve is not only simple in structure but also good in sealing effect and low in cost.
Description
technical field [0001] The invention relates to the field of construction machinery, in particular to a butterfly valve and construction machinery. Background technique [0002] Butterfly valve is a kind of equipment that is widely used in the flue gas pipeline of thermal power plant and other power energy industrial systems. It is mainly used to shut off the flow of flue gas medium. The sealing performance of the baffle affects the economy and environmental protection of the equipment. [0003] Most of the existing butterfly valves use contact seals, but the effect of contact seals is not ideal because the baffle itself is not rigid enough and easily deformed. Existing butterfly valves usually reduce deformation by increasing rigidity, but the equipment is bulky, the investment is increased, and the installation and maintenance on site are extremely inconvenient. Contents of the invention [0004] The purpose of the present invention is to provide a butterfly valve which...
Claims
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IPC IPC(8): F16K1/226F16K1/46F16K27/02
CPCF16K1/2261F16K27/0218
Inventor 李英崔智勇
Owner CHINA SHENHUA ENERGY CO LTD