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Coanda airfoil panel ventilating fan

A technology of ventilation fans and fins, applied in the field of ventilation fans, can solve problems such as high noise and turbulent intake air flow, and achieve the effects of soft air flow, stable air flow and various directions.

Inactive Publication Date: 2016-02-24
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problem of turbulence in the air intake of the existing ventilation fan and loud noise in the case of large air intake

Method used

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  • Coanda airfoil panel ventilating fan
  • Coanda airfoil panel ventilating fan
  • Coanda airfoil panel ventilating fan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1, Coanda vane ventilation fan, including a cabinet body 1, two Coanda vanes 2, two half-sided Coanda vanes 3, exhaust fan 4 and gauze 6.

[0030] The cabinet 1 includes a fan chamber 1-1, a pressure stabilizing chamber 1-2 and a frame 1-3 for installing the Coanda fin 2 and the half-sided Coanda fin 3, the front panel 1-5 of the cabinet and the rear of the cabinet The panel 1-7 is provided with an air inlet 1-8 connected to the fan cavity 1-1, and two parallel guide rails 1 are respectively provided on the inside end surfaces of the cabinet front panel 1-5 and the cabinet rear panel 1-7. -6, two movable baffles 5 are installed between the two guide rails 1-6, the movable baffles 5 can open or close the air inlet 1-8, the gauze 6 is installed on the frame 1-3, and is located in the Coanda The back side of the fins 2 strip-shaped air outlets 2-1.

[0031] The plenum chamber 1-2 is arranged at the upper end of the fan chamber 1-1 and communicates with the fan ...

Embodiment 2

[0036] Embodiment 2. Compared with Embodiment 1, the difference between this embodiment is only that: the pressure stabilizing chamber 1-2 is vertically arranged on the wall plate of the frame 1-3 above the fan chamber 1-1, and the Coanda wing 2 and half Shaped Coanda fins 3 are horizontally arranged in the frame 1-3.

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Abstract

The invention discloses a Coanda airfoil panel ventilating fan. The Coanda airfoil panel ventilating fan comprises a cabinet body, Coanda airfoil panels, two half Coanda airfoil panels, a ventilating fan and gauze. The cabinet body comprises a fan body, a pressure stabilization cavity and a frame used for assembling the Coanda airfoil panels and the half Coanda airfoil panels; a cabinet body front panel and a cabinet body rear panel are provided with air inlets which are communicated with the fan cavity; the inner side end surface of the cabinet body front panel and the inner side end surface of the cabinet body rear panel are separately provided with two parallel guide rails; two movable baffle plates are arranged between every two guide rails; and the gauze is arranged on the frame. The pressure stabilization cavity is arranged on the upper end of the fan cavity and is communicated with the fan cavity through a ventilation opening; and the frame is arranged on the upper end of the pressure stabilization cavity. The ventilating fan is arranged on the upper end of the fan cavity; the Coanda airfoil panels and the half Coanda airfoil panels are arranged in the frame; one end of each of the Coanda airfoil panels and the half Coanda airfoil panels is communicated with the pressure stabilization cavity, and the other end is connected with the wall plate of the frame and is sealed through the wall plate of the frame; the two half Coanda airfoil panels are separately connected with the wall plate of the frame to form a pipe body inner cavity; and the Coanda airfoil panels are arranged between the two half Coanda airfoil panels.

Description

technical field [0001] The invention relates to a ventilation fan, in particular to a Coanda vane ventilation fan. Background technique [0002] Ventilation fans are widely used in industries, homes, and public places, mainly through the exchange of indoor and outdoor air to meet the requirements of different functional rooms for indoor temperature, humidity, and cleanliness. Existing ventilating fans mainly use fan blades to rotate to shear the airflow to generate a front-rear pressure difference to realize ventilation. Although there are many types of ventilation fans, they all have the disadvantages of loud noise, turbulent airflow, and difficulty in cleaning. In the case of using a ventilation fan to enter the room, the turbulence of the air intake of the traditional ventilation fan will greatly disturb the indoor air, which will easily cause the indoor personnel to feel the wind and affect the thermal comfort of people; The requirements are high, and at the same time,...

Claims

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Application Information

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IPC IPC(8): F04D25/08F04D29/66F04D29/40F04D29/70
CPCF04D25/08F04D29/4226F04D29/444F04D29/663F04D29/703F05D2240/12F04F5/16F04F5/466F04F5/46
Inventor 彭小勇叶雅玲胡畏梁晶晶
Owner NANHUA UNIV
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