Ceiling type ventilation equipment based on Coanda effect

A technology of Coanda effect and ventilation equipment, applied in the field of ceiling-mounted ventilation equipment, can solve the problems of uncomfortable blowing feeling, unorganized circulating lighting of indoor airflow, instability, etc., to avoid blowing feeling, reduce power requirements, and reduce electric energy. the effect of consumption

Inactive Publication Date: 2016-02-10
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problems of uncomfortable blowing feeling, unorganized circulation of indoor airflow and unstable lighting caused by blade rotation when the existing ceiling-mounted ventilation equipment is working.

Method used

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  • Ceiling type ventilation equipment based on Coanda effect
  • Ceiling type ventilation equipment based on Coanda effect
  • Ceiling type ventilation equipment based on Coanda effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one, see attached figure 1 , attached figure 2 , a ceiling-mounted ventilation device based on the Coanda effect, including a top plate 1, a Coanda dish-shaped housing 2, an arc guide sleeve 3, an exhaust fan 4, a connecting block 5 and an annular mounting frame 8 with a filter screen 8-1 .

[0024] The wall plate of the Coanda dish-shaped housing 2 is a Coanda curved surface, and its small opening is curled inward to form an annular guide head 2-1 with a smooth curved surface, so as to avoid turbulent flow noise caused by the airflow encountering sharp objects.

[0025] The outer opening of annular flow guide sleeve 3 forms an annular flow guide groove 3-2 on the outside of annular flow guide sleeve 3, and its inwall is arc guide hole 3-1, and the inwall of arc guide hole 3-1 is provided with There is an annular boss 3-3 for installing the annular mount 8, and the annular mount 8 with the filter screen 8-1 is installed on the annular boss 3-3 in the ...

Embodiment 2

[0029] Embodiment two, refer to attached image 3 , Compared with Embodiment 1, this embodiment differs only in that: a chandelier 10 is hoisted on the ring mounting frame 8 .

Embodiment 3

[0030] Embodiment three, refer to attached Figure 4 Compared with Embodiment 1, the present embodiment differs only in that: a transparent annular plate 2-2 is provided on the wall plate of the Coanda dish-shaped housing 2, and an annular plate-shaped plate 2-2 is provided on the annular plate 2-2. LED lights10.

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PUM

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Abstract

Ceiling type ventilation equipment based on Coanda effect comprises a top plate, a Coanda disc shell, an arc-shaped guide sleeve, an exhaust fan, a plurality of connecting blocks and an annular mounting rack with a filter net. A wall plate of the Coanda disc shell is a Coanda curved surface, and the small opening end of the Coanda disc shell is curled inwards so as to form an annular guide head with a smooth curved surface. An opening is formed in the outer side of the annular guide sleeve, an annular guide groove is formed in the outer side of the annular guide sleeve, an arc-shaped guide hole is formed in the inner wall of the annular guide sleeve, and the annular mounting rack with the filter net is mounted on an annular boss in the arc-shaped guide hole through screws. The Coanda disc shell is connected with the annular guide sleeve through the plurality of connecting blocks, and an annular air outlet is formed by the outer side of the annular guide head on the Coanda disc shell and the inner side of the small end of the annular guide groove of the annular guide sleeve. The Coanda disc shell is mounted on the top plate through screws, an air inlet cavity is formed between the inner wall plate of the Coanda disc shell and the top plate, and the exhaust fan is suspended on the top plate and positioned in the arc-shaped guide hole in the annular guide sleeve.

Description

technical field [0001] The invention relates to a ventilation device, in particular to a ceiling-absorbing ventilation device based on the Coanda effect. Background technique [0002] As an important equipment to improve the indoor environment, the indoor ventilation device plays an important role in maintaining good temperature and humidity, cleanliness and appropriate speed of the indoor air, and is one of the important factors affecting the indoor air quality. Although there are many types of indoor ventilation devices on the market, most of them rely on initial velocity jets for ventilation, which will produce an uncomfortable feeling of blowing. Especially for the hanging ventilation device that adopts blade shear air flow, its hanging installation will occupy a large indoor space, and the rotation of the blade will not only affect the normal lighting, but also have certain safety hazards; The wind mode is easy to cause uncomfortable blowing feeling to the indoor perso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F13/08F24F13/078
CPCF24F13/078F24F13/081F24F2013/0616F24F2221/02
Inventor 彭小勇叶雅玲梁晶晶
Owner NANHUA UNIV
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