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Double-position valve applied to draught fans

A two-position valve and fan technology, applied in the field of two-position valves, can solve problems such as difficult water supply and waste of water resources, and achieve the effects of avoiding corrosion of the valve casing, shortening the service life, and sensitive flap movements

Inactive Publication Date: 2015-02-25
湖北双剑鼓风机股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally, the bearings of large-scale fans are cooled by circulating water, which causes a lot of waste of water resources, and many fan installation sites cannot or are difficult to provide water sources, so air cooling must be used

Method used

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  • Double-position valve applied to draught fans
  • Double-position valve applied to draught fans
  • Double-position valve applied to draught fans

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0020] see Figure 1-Figure 4 , a two-position valve applied to fans, including a valve casing 1, on which an air outlet 2 and two air inlets 3 are arranged, the air outlet 1 is located on the center line of the valve casing 1, and the inlet The air port 3 is symmetrically arranged left and right along the center line of the valve casing 1. The valve casing 1 is provided with a flap 4 inside. The flap 4 includes a steel plate 6 and a wrapped rubber 7. The flap 4 is located on the center line of the valve casing 1. Set on the pin shaft 5, the pin shaft 5 is fixed on the cover plate through the pin shaft locking nut, and the cover plate is fixed on the valve casing 1 through the cover locking bolt. There is a gap of 3-5 mm between the flap sleeve 8 on the flap 4 and the pin shaft 5, and a gap of 3-5 mm is provided between the end face of the flap...

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PUM

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Abstract

The invention discloses a double-position valve applied to draught fans. The double-position valve comprises a valve shell. An air outlet and two air inlets are formed in the valve shell, the air outlet is located in the center line of the valve shell, and the air inlets are symmetrically formed along the center line of the valve shell. The double-position valve is characterized in that an overturning plate is arranged inside the valve shell, located in the center line of the valve shell and fixed to the valve shell through a hinge pin. The flowing direction of cooling air is controlled through the double-position valve, motions of the overturning plate are automatically performed through the power of the cooling air, additional power and an additional control mechanism are not needed, the cooling air is safely and continuously provided, water cooling can be replaced in multiple occasions, and therefore waste of water resources is reduced.

Description

technical field [0001] The invention relates to the field of mechanical equipment, in particular to a two-position valve applied to a fan. Background technique [0002] The ventilator is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. The exhaust pressure is lower than 1.5×10 Pa. Fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and induction of boilers and industrial furnaces, cooling and cooling of air conditioning equipment and household appliances Ventilation, grain drying and sorting, wind tunnel wind source and hovercraft inflation and propulsion, etc. [0003] Generally, the bearings of large-scale fans are cooled by circulating water, which causes a lot of waste of water resources, and many fan installation sites cannot or are difficult to provide water sources, so air cooling mus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/40F04D27/00
CPCF04D29/584F04D27/00F04D29/663
Inventor 郑家斌
Owner 湖北双剑鼓风机股份有限公司
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