CN2043711U

CN2043711U - Ball-shape wind exhaust cover

Info

Publication number: CN2043711U
Application number: CN 89200011
Authority: CN
Inventors: 池春霖
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-01-04
Filing date: 1989-01-04
Publication date: 1989-08-30

Abstract

The utility model discloses a ball-shaped wind exhaust cover which is a device of using wind energy to exhaust wind. The utility model is used to ventilate by industry buildings and civil buildings. The utility model is characterized in that a hollow ball table-shaped wind shield casing (2a) is fixed on a diffusion tube (1a) by a connecting piece (5), and a rain shield cover (3a) is arranged in the wind shield casing (2a). The wind shield casing (2a) is formed by assembling 2-4 pieces of arc plates, and the utility model can be stored and transported through folding together. Glass fiber reinforced plastic or plastic is fit to be used to produce the wind exhaust cover by compressing and moulding, the wind exhaust cover is formed, the materials are saved more than 10%, and the rain shield cover (3a) of the wind exhaust cover of daylighting type is made by transparent materials. Compared with a cylinder-shaped wind exhaust cover with the same calibre, the exhaust air rate of the utility model is increased 15-30%, and the adaptability of the vertical wind is increased 200%.

Description

Ball-shape wind exhaust cover

Blast cap is the device that utilizes the wind energy air draft, is used for industry and civil building and ventilates.The general cylindrical ventilator (national general building standard design atlas T611) of China is to adopt Soviet Union's the fifties standard blast cap design at present, it is that cylindrical shape windshield (2) is supported on the anemostat (1) with band steel, rain shield (3) is fixed on the top of tubular windshield (2) with band steel, sees accompanying drawing 1.It has advantage simple in structure, that the scene is easily manufactured and the air draft ability is bigger, but because integral manufacturing, profile are huge, transportation damages distortion easily, can not batch production production.

Purpose of the present invention strengthens the conformability of vertical wind in order to improve the air draft ability of blast cap, reduces material usage and cost, increases the daylighting function, is suitable for batch production production and transportation.

When blowing to spheroid according to air-flow, the phenomenon streaming the 70 ° of zone generations in angle peak suction is designed to hollow billiard table shape with the blast cap windshield.When the wind blast cap, around billiard table shape windshield, produce negative pressure, negative pressure and negative pressuren zone are all big than cylindrical ventilator, and according to model test, same bore exhaust air rate can increase by 15～30%, and the vertical wind adaptive capacity increases by 200%.

Ball-shape wind exhaust cover is constructed as shown in Figure 2, and hollow billiard table shape windshield (2a) is fixed on the anemostat (1a) with connector (5); Rain shield (3a) is installed in the hollow billiard table shape windshield, is fixed by bolts on the windshield.

Hollow billiard table shape windshield (2a) is combined by 2～4 arcs, and arc can be superimposed together and deposit and transport, and with bolt each sheet being linked up during assembling becomes billiard table shape.Rain shield (3a) is disc, has 2～4 bar-shaped troughs on the outside, and trough rim has real edge, and is porose on the real edge, is fixed in bolt on the arc rib of slab of windshield (2a).Anemostat (1a) flange suitable for reading; The lower end makes disc, is buckled in roofing during on-the-spot the installation and gives on the blast cap hole seat that stays, and this structure has not only strengthened and prevents that rainwater is splashed into indoor reliability, and need not resemble and make flashing other blast caps on roofing.

Ball-shape wind exhaust cover is made of plastics, fiberglass, sheet metal or thin aluminum sheet, and especially suitable employing fiberglass or plastic mould pressing moulding are made, and ratio of material dosage is saved more than 10% with the bore blast cap.

The rain shield (3a) of daylighting type Ball-shape wind exhaust cover adopts transparent plastic or translucent glass steel to do.

Claims

1, blast cap is the device that utilizes the wind energy air draft, is used for industry and civil building and ventilates, and present general cylindrical ventilator is that cylindrical shape windshield (2) is supported on the anemostat (1) with band steel, and rain shield (3) is fixed on the top of windshield (2) with band steel,

Feature of the present utility model is: hollow billiard table shape windshield (2a) is fixed on the anemostat (1a) with connector (5), and rain shield (3a) is installed in the windshield (2a), is fixed by bolts on the windshield (2a).

2, blast cap according to claim 1 is characterized in that hollow billiard table shape windshield (2a) is combined by 2～4 arcs.

3, blast cap according to claim 1 is characterized in that anemostat (1a) flange that makes suitable for reading, and the lower end makes disc.

4, blast cap according to claim 1 is characterized in that adopting plastics, fiberglass, sheet metal or thin aluminum sheet material to make.

5, blast cap according to claim 1 is characterized in that the rain shield (3a) of daylighting type blast cap adopts transparent plastic or translucent glass steel to do.