High-efficiency and energy-saving double suction fan

A high-efficiency, energy-saving, suction fan technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of adjusting the blade opening not to zero, design difficulty, flow deviation, etc., to achieve axial size reduction, energy The effect of small loss and reduction of complete set cost

Active Publication Date: 2013-12-11
苏州欧拉透平机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such an adjustment method often brings a large energy loss, and the work efficiency of the double suction fan is low.
[0005]In addition, in the prior art, the pre-rotator is usually used as the regulating door on the double-suction fan to regulate its flow, but the regulating blade on the pre-rotator Basically, they are all single-support type, and their rigidity is poor, and they are prone to deformation when the airflow impacts, causing the opening of the pre-rotation device to adjust the blades to be closed. There is also a deviation in the flow rate at a certain opening. The design of the control system for the control poses certain difficulties

Method used

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  • High-efficiency and energy-saving double suction fan
  • High-efficiency and energy-saving double suction fan
  • High-efficiency and energy-saving double suction fan

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Embodiment Construction

[0026] The technical scheme of the present invention will be further described below in conjunction with the drawings and preferred embodiments of the present invention.

[0027] See figure 1 The shown high-efficiency and energy-saving double-suction fan includes a casing with an inner cavity 1, an air outlet 3 communicating with the inner cavity of the casing 1, and two air inlets 2, the two air inlets 2 are located respectively Both sides of the air outlet 3. The double-suction fan also includes a two-way intake impeller 4, a diffuser 5, and two intake pre-rotators 6. The two-way intake impeller 4 is rotatably arranged on the casing 1 through a rotating shaft 7 around its own axis. In the inner cavity, the two-way air inlet impeller 4 has an air outlet 41 and two air inlets 42 at both ends, and an air inlet pre-rotator 6 is provided between each air inlet 42 and the air inlet 2 on the corresponding side. , The intake pre-rotator 6 can be coaxially arranged with the two-way i...

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Abstract

The invention discloses a high-efficiency and energy-saving double suction fan, which comprises an enclosure, a wind outlet, two wind inlets, a bidirectional air inlet impeller, a diffuser and air inlet prerotators, wherein air inlets are formed in the two sides of the bidirectional air inlet impeller; the air inlet prerotators are arranged on the two sides of the bidirectional air inlet impeller respectively; the wind inlets of the double suction fan are communicated with the air inlets in the same sides of the bidirectional air inlet impeller in an air flow adjustable way through the air inlet prerotators. According to the double suction fan, the structures of the air inlet prerotators are optimized, so that the flow can be more accurately adjusted and controlled through the air inlet prerotators, the energy loss is low, the working efficiency of the double suction fan is greatly improved, the overall axial size of the double suction fan can be greatly reduced under the condition of the same working capability, and the cost of the complete set is reduced.

Description

[0001] technical field [0002] The invention relates to a high-efficiency and energy-saving double-suction fan. [0003] Background technique [0004] In the prior art, the flow rate of the double suction fan is usually relatively large, and its flow rate is usually adjusted by using a hydraulic coupling, or by installing an adjusting door in front of its air inlet. Such an adjustment method often brings a large energy loss, and the work efficiency of the double suction fan is low. [0005] In addition, in the prior art, the pre-rotator is usually used as the regulating door on the double-suction fan to regulate its flow rate. It is easy to deform during the impact, causing the opening of the pre-rotation device to adjust the blade to not be zero when it is closed, and there is also a deviation in the flow rate at a certain opening, which causes certain difficulties in the design of the control system for flow control. [0006] Contents of the invention [0007] The p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/00
Inventor 刘廷召金鼎铭
Owner 苏州欧拉透平机械有限公司
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