Ventilation butterfly valve capable of accurately adjusting air volume

A technology of precise adjustment and air volume, applied in the direction of valve lift, valve details, valve device, etc., can solve problems such as poor control, difficult to ensure sealing, poor linearity of air volume adjustment, etc., achieve good self-locking performance, and save labor The effect of adjusting, improving precision and linearity

Pending Publication Date: 2019-04-09
北京兴博元科技发展有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common ventilation butterfly valves include single-leaf ventilation butterfly valve and louver butterfly valve. When the valve opening is small, the single-leaf ventilation butterfly valve has poor linearity in adjusting the air volume and is difficult to control.
The louver butterfly valve has more blades, although the air volume is easy to control, but the sealing is difficult to guarantee.
[0003] For the problems in related technologies, no effective solutions have been proposed yet

Method used

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  • Ventilation butterfly valve capable of accurately adjusting air volume
  • Ventilation butterfly valve capable of accurately adjusting air volume
  • Ventilation butterfly valve capable of accurately adjusting air volume

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0018] Such as figure 1 As shown, a ventilation butterfly valve capable of precisely adjusting air volume according to an embodiment of the present invention includes a valve body and a butterfly valve plate, and the butterfly valve plate includes two first valve plates 1 and a second valve plate arranged in sequence along the medium flow direction 2. The first valve piece 1 and the second valve piece 2 are respectively connected with the first valve stem and the second valve stem. The first ...

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PUM

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Abstract

The invention discloses a ventilation butterfly valve capable of accurately adjusting an air volume. The ventilation butterfly valve capable of accurately adjusting the air volume comprises a valve body and butterfly valve plates, the butterfly valve plates comprise a first valve plate and a second valve plate which are sequentially arranged in the flow direction of medium, the first valve plate and the second valve plate are connected with a first valve rod and a second valve rod respectively, the first valve rod and the second valve rod are arranged in the valve body in a rotating mode and perpendicular to the flow direction of medium, a power mechanism is arranged in the valve body, and the power mechanism is in transmission connection with the first valve plate or the second valve plate. The ventilation butterfly valve capable of accurately adjusting the air volume is provided with the first valve plate and the second valve plate, and the opening degree of the two valve plates canbe adjusted in sequence so as to improve the adjusting precision and the linearity degree.

Description

technical field [0001] The invention relates to the field of valves, in particular to a ventilation butterfly valve capable of precisely adjusting air volume. Background technique [0002] Ventilation butterfly valves are used in dusty cold air or hot air pipelines in ventilation and environmental protection projects in chemical, building materials, power stations, glass and other industries, as a pipeline control device for regulating flow or cutting off gas media. In order to reduce the accident rate and facilitate adjustment, the same ventilation main duct is usually equipped with multiple ventilation branch pipes for simultaneous ventilation, and the air volume requirements between the branch air pipes should be balanced as much as possible. Common ventilation butterfly valves include single-leaf ventilation butterfly valve and louver butterfly valve. When the valve opening is small, the single-leaf ventilation butterfly valve has poor linearity in adjusting the air volu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/22F16K31/53F16K31/06
CPCF16K1/221F16K1/223F16K31/0655F16K31/535
Inventor 陆春梅
Owner 北京兴博元科技发展有限责任公司
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