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Multi-stage centrifugal fan

A centrifugal fan and air inlet technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of inconvenient air volume, inability to filter debris, manual intervention adjustment, etc., and achieve the effect of preventing detachment

Pending Publication Date: 2021-08-06
JIANGSU HENGKANG ELECTRICAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the traditional centrifugal fan is often not equipped with a filter device, which cannot perform preliminary filtration of the sundries in the air. After the larger sundries enter the multi-stage centrifugal fan, it will affect the normal operation of the multi-stage centrifugal fan, and it is not convenient Manually adjust the air volume, it is not convenient to control the air volume when needed

Method used

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Embodiment Construction

[0023] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0024] like Figure 1-Figure 7 As shown, a multi-stage centrifugal fan according to the present invention includes a centrifugal fan main body 1, the air inlet end of the centrifugal fan main body 1 is connected with a filter structure 2 and an air volume control structure 3, and the filter structure 2 is installed with a limited position Structure 4, the air volume control structure 3 is equipped with an indicating structure 5.

[0025] Specifically, the filter structure 2 includes a fixed frame 21, the air inlet end of the centrifugal fan main body 1 is slidably connected with the fixed frame 21, and the two sides of the centrifugal fan main body 1 are fixedly connected with lifting blocks 24, and the lifting blocks 24 is in a triangular shape,...

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Abstract

The invention relates to the technical field of centrifugal fans, in particular to a multistage centrifugal fan. The multistage centrifugal fan comprises a centrifugal fan body, the air inlet end of the centrifugal fan body is connected with a filtering structure and an air volume control structure, the filtering structure is provided with a limiting structure, and the air volume control structure is provided with an indicating structure. Air entering the multi-stage centrifugal fan can be preliminarily intercepted and filtered through the filtering structure, impurities in the air are prevented from entering the multi-stage centrifugal fan, normal work of the multi-stage centrifugal fan is prevented from being affected, faults are avoided, the air volume entering the multi-stage centrifugal fan can be manually intervened through the air volume control structure, thus, different working requirements are met, the filtering structure and the centrifugal fan body can be firmly fixed through the limiting structure, separation of the fixing structure is prevented, and when the air volume is adjusted through the air volume control structure, the adjustment size of the air volume can be conveniently observed through the indicating structure.

Description

technical field [0001] The invention relates to the technical field of centrifugal fans, in particular to a multistage centrifugal fan. Background technique [0002] The centrifugal 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, which is more common in the fresh air system. The multi-stage centrifugal fan can increase the output of the air volume. The control of the air volume, and the entry of debris into the multi-stage centrifugal fan and affecting the work of the multi-stage centrifugal fan requires the use of a multi-stage centrifugal fan. [0003] However, the traditional centrifugal fan is often not equipped with a filter device, which cannot perform preliminary filtration of the sundries in the air. After the larger sundries enter the multi-stage centrifugal fan, it will affect the normal operation of the multi-stage centrifugal fan, and it is not convenient It is not conv...

Claims

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Application Information

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IPC IPC(8): F04D17/16F04D25/08F04D29/70F04D29/62F04D29/46F04D27/00F04D29/00
CPCF04D17/164F04D25/08F04D29/703F04D29/626F04D29/464F04D27/003F04D29/002
Inventor 刘万勤董传友刘正东刘迪群葛鉴夏恒彬
Owner JIANGSU HENGKANG ELECTRICAL
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