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Low-noise explosion-proof fan

A technology of explosion-proof fans and fan blades, which is applied to mechanical equipment, machines/engines, liquid fuel engines, etc., and can solve problems such as loud noises and explosion hazards

Inactive Publication Date: 2021-03-12
亚什兰风机无锡有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a low-noise explosion-proof fan, which solves the problems of excessive noise and easy explosion

Method used

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  • Low-noise explosion-proof fan

Examples

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Embodiment

[0023] see Figure 1-4 , in this embodiment: a low-noise explosion-proof fan, including an inner casing 1 and an outer casing 12, the inner casing 1 is provided with fan blades 2, and the top surface of the outer casing 12 is fixedly connected with a push handle 13, The bottom surface of the outer shell 12 is fixedly connected with a pulley 14, the inner wall of both sides of the inner shell 1 is fixedly connected with a vacuum plate 3, and the inner wall of the top of the groove is fixedly connected with a sound-absorbing block 4, and the top outer wall of the inner shell 1 The top is fixedly connected with a built-in box 5, the top outer wall of the built-in box 5 is provided with a groove, the inner wall of the groove of the built-in box 5 is rotatably connected with a rotating shaft 6, and the surface of the rotating shaft 6 is fixedly connected with a box cover 7, and the surface of the box cover 7 The first connection block 8 and the second connection block 9 are fixedly...

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Abstract

The invention belongs to the technical field of fans, and particularly relates to a low-noise explosion-proof fan, which comprises an inner shell and an outer shell; fan blades are arranged in the inner shell; a push handle is fixedly connected to the surface of the top end of the outer shell, and pulleys are fixedly connected to the surface of the bottom end of the outer shell; the inner walls ofthe two sides of the inner shell are fixedly connected with vacuum plates; the inner walls of the top ends of vacuum plate grooves are fixedly connected with sound absorption blocks; the outer wall of the top end of the inner shell is fixedly connected with a built-in box; the outer wall of the top end of the built-in box is provided with a groove; and the inner wall of the groove of the built-inbox is rotatably connected with a rotating shaft. Through the arrangement of the vacuum plates, when generated noise reaches the vacuum plates through air propagation during operation of the fan, dueto the fact that the interiors of the vacuum plates are in a vacuum state, sound cannot be propagated, the noise is isolated, and the sound absorption blocks are arranged in the grooves of the vacuumplate, and the low-noise effect is achieved through absorption of the noise by the sound absorption blocks.

Description

technical field [0001] The invention relates to the technical field of fans, in particular to a low-noise explosion-proof fan. Background technique [0002] The fan 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. Fan is China's customary abbreviation for gas compression and gas conveying machinery. Usually, fans include ventilators, blowers, and wind generators. Fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings. , Dust extraction and cooling, ventilation and induction of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household electrical appliances; drying and selection of grain, wind tunnel wind source and inflation and propulsion of hovercraft, etc., fans It is mainly used in metallurgy, petrochemical, electric power, urban rail transit, textile, shipbuilding and other fields of national econom...

Claims

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Application Information

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IPC IPC(8): F04D29/52F04D29/66F04D29/00F04D29/02
CPCF04D29/002F04D29/023F04D29/522F04D29/664
Inventor 蔡海滨
Owner 亚什兰风机无锡有限公司
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