Double-blade impeller

A double-blade, vane technology, applied in the field of double-blade impellers, can solve the problems of working environment impact, gas not being discharged, etc.

Inactive Publication Date: 2012-10-10
SUZHOU TAIHU FAN MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Sometimes, the gas discharged by the impeller has a strong pungent smell, so if the ga

Method used

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  • Double-blade impeller

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Embodiment Construction

[0012] The present invention is described below in conjunction with accompanying drawing.

[0013] as attached figure 1 The shown double-blade impeller of the present invention includes a front cover plate 1, a rear cover plate 2 and blades 3, and a plurality of first blades 3 are arranged in an annular array between the front cover plate 1 and the rear cover plate 2, The rear surface of the rear cover 2 has a plurality of second blades 4 in an annular array; the number of the first blades 3 is the same as the number of the second blades 4; the center of the rear surface of the rear cover 2 is provided with a boss 5; the boss 5 is located within the circumference formed by a plurality of second blades 4; the height of the boss 5 is greater than the height of the second blade 4

[0014] The double-blade impeller of the present invention enables the gas at the rear of the impeller to be discharged, avoiding the impact on the surrounding working environment caused by the gas wit...

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Abstract

The invention discloses a double-blade impeller, which comprises a front cover plate, a rear cover plate and blades, wherein a plurality of first blades are arranged between the front cover plate and the rear cover plate in an annular array; a plurality of second blades are arranged on the rear surface of the rear cover plate in an annular array; the number of the first blades is the same as that of the second blades; a boss is formed in the center of the rear surface of the rear cover plate and is positioned in a circle formed by a plurality of second blades; and the height of the boss is greater than that of the second blades. By the double-blade impeller, gas on the rear of the impeller is exhausted, and the phenomenon that the gas with strong pungent smell cannot be exhausted for a long time so as to influence the surrounding working environment is avoided.

Description

technical field [0001] The invention relates to an impeller, in particular to a double blade impeller. Background technique [0002] As a key component of the fan, the impeller's structural configuration directly affects the overall performance of the fan. The blades of the impeller are usually set between the front cover and the rear cover, so that the airflow circulation is formed between the front cover and the rear cover, and only the gas between the front cover and the rear cover can be discharged, while some in the The gas behind the impeller is not exhausted. Sometimes, the gas discharged by the impeller has a strong pungent smell, so if the gas is not discharged for a long time, it will affect the surrounding working environment. Contents of the invention [0003] In view of the above-mentioned existing technical problems, the object of the present invention is to propose a double-blade impeller that allows the gas at the rear of the impeller to be discharged. ...

Claims

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Application Information

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IPC IPC(8): F04D29/28
Inventor 汤永明
Owner SUZHOU TAIHU FAN MFG
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