Induced fan

A technology for inducing fans and cabinets, which is applied in ventilation systems, space heating and ventilation, household heating, etc. It can solve the problems of low airflow outlet speed, small air induction volume, and efficiency loss, so as to achieve stable airflow and save resources , the effect of reducing the number of

Inactive Publication Date: 2004-06-30
北京新安特风机有限公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The static pressure generated by the ventilator is mainly used to overcome the resistance of the pipe network to transport air, while the characteristics and application occasions of the induced fan are ductless, so the static pressure generated by it becomes a loss of efficiency, and its small flow mainly reflects the outlet velocity of the airflow Low, close range, and therefore less air induction

Method used

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Examples

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Embodiment Construction

[0025] Such as figure 1 and figure 2 As shown, the structure of the induced fan of the present utility model includes a casing 5, a nozzle 1 that can adjust various spray angles is fixed on the front end of the casing 5, a motor 6 is fixed on the side of the casing 5 and is directly connected to its output shaft and faces The axial direction of the cross-flow impeller extending inside the casing 5 is perpendicular to the axis of the nozzle 1, which is the direction in which the airflow is ejected. There are more than one nozzle 1, which can be composed of single or multiple, and can be adjusted as needed. Various spray angles. The cross-flow impeller 3 is also called a cross-flow impeller, and its rear side is provided with a guide volute 4 fixed on the inner wall of the cabinet 5 . The front side of the cross-flow impeller 3 is provided with an anti-backflow volute 2 fixed on the inner wall of the casing 5 . The above-mentioned motor 6 can be a single-phase 220V motor or...

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PUM

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Abstract

The invention discloses a kind of guiding fan for ventilation in large location, the structure comprises chassis, snoot with variable angles, there sets electricity machine and cross-flow blade wheel connecting to the output shaft at the side of the chassis, its shaft direction corresponds to the shaft of the snoot. There has a guiding volute on the inner wall of chassis back of the blade wheel, there has a countercurrent resisting volute tongue, when the electricity machine drives the blade wheel to rotate, the air enters form the back of the chassis, through guiding volute, countercurrent resisting volute tongue and snoot, it uses high speed air to guide air to the fixed direction and region.

Description

1. Technical field [0001] The invention relates to a fan, in particular to an induction fan used for ventilation and air conditioning in parking lots, gymnasiums, halls, workshops and other large places. 2. Background technology [0002] The jet induced ventilation system is composed of four parts: blower, induction fan, exhaust fan, and measurement and control equipment. Among them, the blower is used to supply outdoor fresh air. Several induction fans arranged at certain intervals are relayed one by one to induce the fresh air into the garage, stir evenly, and at the same time induce the exhaust gas to be discharged from the exhaust fan; measurement and control The equipment senses the exhaust gas concentration in the warehouse and automatically turns on or off the above equipment. [0003] Power supply and operation control: Each induction fan has a power terminal block and an indicator light; the control methods that can be adopted include: CO sensing automatic control,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F7/06
Inventor 沈光全
Owner 北京新安特风机有限公司
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