CN206905196U - A kind of roof Unpowered ventilation device - Google Patents

Abstract

A roof non-powered ventilator belongs to the field of building ventilation, and mainly relates to a ventilator; the utility model aims to solve the problems of poor ventilation effect and low ventilation efficiency in the non-powered ventilator in the prior art; The shape guide group includes a middle guide assembly and a lower guide assembly. Both the middle guide assembly and the lower guide assembly are composed of a number of arc-shaped guide vanes to form a turbine structure. The uniform flange extending in the length direction of the blade, the diameter of the circle where the arc-shaped guide vanes of the middle guide assembly are located is greater than the diameter of the circle where the guide vanes of the lower guide assembly are located; the utility model is light in weight, easy to install, and is safe for enterprises Provide a strong guarantee.

Description

A roof unpowered ventilator

technical field

A ventilator belongs to the field of building ventilation, and mainly relates to a roof non-powered ventilator.

Background technique

At present, my country's total social energy consumption mainly includes industrial energy consumption, building energy consumption, and transportation energy consumption, of which building energy consumption accounts for about 30% of the total social energy consumption. emission, low-carbon environmental protection important measures. Building energy saving can be divided into two aspects: civil building energy saving and industrial building energy saving. The ventilation system of industrial plants mostly chooses mechanical ventilation, relying on mechanical equipment such as ventilators and exhaust fans to transport air. Compared with natural ventilation, mechanical ventilation has the advantages of high efficiency and strong controllability, but the equipment required for mechanical ventilation consumes a lot of energy, and its own purchase, operation and maintenance costs are relatively high. Therefore, natural ventilation systems will become industrial The first choice for building ventilation systems; the non-powered ventilators in the prior art have the problems of poor ventilation effect and low ventilation efficiency.

Utility model content

In order to solve the above problems, the utility model discloses a roofless ventilator with simple structure, rapid ventilation and good ventilation effect.

The purpose of this utility model is achieved in that:

A roof unpowered ventilator, comprising a top cover, an arc-shaped guide group and a base, the arc-shaped guide group includes a middle guide assembly and a lower guide assembly, and the middle guide assembly and the lower guide assembly are composed of several arc-shaped The guide blade constitutes the turbine structure, and the edge of the arc-shaped guide vane is provided with a uniform flange extending along the length of the blade along the blade. The diameter of the circle where the arc-shaped guide vane of the middle guide assembly is larger than that of the lower guide assembly The diameter of the circle where the guide vanes are located.

The ratio of the diameter of the circle where the arc-shaped guide vanes of the middle guide assembly is located to the diameter of the circle where the guide vanes of the lower guide assembly is located is 3:1. The double-layer guide assemblies work together and have good rainproof Function.

The base includes a transition channel and an air vent connected up and down, the transition channel is surrounded by a volute coaming, and the volute coaming promotes the vortex flow of air.

The air vent is in the shape of a frustum of a cone with a large bottom and a small top, and a louver baffle is provided under the lower end of the cone.

The louver baffle includes a frame and a louver installed on the frame. The edge of the louver is provided with a sealing strip, and the sealing strip is a rubber sealing strip. The longitudinal section of the sealing strip is triangular, and the bottom edge of the triangle is installed on the louver , according to different needs to control the ventilator.

The thickness of the arc-shaped guide vanes decreases sequentially from outside to inside, which reduces wind resistance and better guides the flow.

Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple structure, the flow is guided through the middle guide assembly and the lower guide assembly, the ventilation volume is large, and the rainproof effect is good, and even a breeze can produce Good ventilation effect is conducive to the heat discharge in the factory building or building, and the flange forms a diversion groove to make the ventilation effect better. The utility model is light in weight and easy to install, providing a strong guarantee for the safe production of enterprises.

Description of drawings

Fig. 1 is a schematic structural diagram of a measuring device for a vertical motion component of a mask table of the present invention.

detailed description

Below in conjunction with accompanying drawing, specific embodiment of the present utility model is described in further detail.

A roof unpowered ventilator of this embodiment comprises a top cover 1, an arc guide group and a base, the arc guide group includes a middle guide assembly 2 and a lower guide assembly 3, the middle guide assembly 2 and the lower guide assembly The guide assembly 3 is composed of several arc-shaped guide vanes to form a turbine structure. The edge of the arc-shaped guide vane is provided with a uniform flange 4 extending along the length of the blade along the blade. The arc-shaped guide of the middle guide assembly 2 The diameter of the circle where the blades are located is greater than the diameter of the circle where the guide vanes of the lower guide assembly 3 are located, and the diameter of the circle where the arc-shaped guide vanes of the middle guide assembly 2 is located is different from the diameter of the circle where the guide vanes of the lower guide assembly 3 are located. The ratio is 3:1, and the thickness of the arc guide vanes decreases sequentially from outside to inside.

The base includes a transition channel 5 and a vent 6 connected up and down. The transition channel 5 is formed by a volute enclosure. There are louver baffles below.

The louver baffle includes a frame and a louver 7 installed on the frame. The edge of the louver 7 is provided with a sealing strip, and the sealing strip is a rubber sealing strip. The longitudinal section of the sealing strip is triangle, and the bottom edge of the triangle is installed on the on board 7.

It should be understood that although this description is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. a kind of roof Unpowered ventilation device, including top cover, arc water conservancy diversion group and base, it is characterised in that：Arc water conservancy diversion group bag Middle part guiding subassembly and bottom guiding subassembly, middle part guiding subassembly and bottom guiding subassembly are included by some arc guide vane structures Into turbine structure, arc guide vane edge is provided with the homogeneous flange for being provided with along blade and extending along length of blade direction, middle part Diameter of a circle is more than diameter of a circle where the guide vane of bottom guiding subassembly where the arc guide vane of guiding subassembly.

A kind of 2. roof Unpowered ventilation device according to claim 1, it is characterised in that：The arc of the middle part guiding subassembly Diameter of a circle where guide vane is 3 with the ratio between diameter of a circle where the guide vane of bottom guiding subassembly:1.

A kind of 3. roof Unpowered ventilation device according to claim 1, it is characterised in that：The base, which includes connection up and down, pacifies The transition passage and ventilating opening of dress, the transition passage are enclosed for spiral case coaming plate and formed.

A kind of 4. roof Unpowered ventilation device according to claim 3, it is characterised in that：The ventilating opening is lower upper small greatly Taper type, the lower end of taper platform have blinds baffle plate.

A kind of 5. roof Unpowered ventilation device according to claim 4, it is characterised in that：The blinds baffle plate include framework and It is shutter board on framework, the edge of shutter board is provided with sealing strip.

A kind of 6. roof Unpowered ventilation device according to claim 5, it is characterised in that：The sealing strip is rubber seal Bar, the vertical section triangle of sealing strip, the base of triangle are arranged on shutter board.

A kind of 7. roof Unpowered ventilation device according to claim 1, it is characterised in that：The thickness of the arc guide vane Ecto-entad is sequentially reduced.