CN2301488Y - Roof ventilator - Google Patents

Abstract

The utility model belongs to a ventilation equipment is suitable for the heat dissipation ventilation in the hot workshop of industrial enterprise and uses. The air valve is installed on the throat, the water-proof board in the shape of Chinese character 'ren' is fixed in the cavity at the top of the cylinder, the oblique guide plate in the same direction is fixed on the outside of the cylinder, the water-proof board and the lower end of the guide plate are connected with water drainage tank, the hot air is discharged upwards through the gap between the throat, the air valve, the water-proof board and the guide plate, the aim of natural ventilation is achieved.

Description

roof ventilator

The utility model belongs to a ventilating device, in particular to a natural ventilating device, ie a roof ventilator, which is used for exhausting air from hot workshops of industrial enterprises.

Existing industrial enterprises generally use exhaust fans or roof fans to drive fans or blowers to realize forced ventilation. The disadvantages are power consumption, high noise, large wear and tear of high-speed running parts, and high maintenance and operation costs.

The purpose of this utility model is to provide a new type of roof ventilator, so that it does not use electricity, has no noise, and reduces operating and maintenance costs.

The purpose of this utility model is achieved as follows: the roof ventilator is connected with the throat by the cylinder, the throat is supported on the roof reserved hole, the damper plate is installed on the throat, and the upper part of the cylinder cavity is fixed with a "herringbone" shaped waterproof A deflector plate inclined in the same direction as the waterproof plate is fixed at a certain distance outside the plate. The cross-sectional shape of the throat and the barrel is the same as a garden or a rectangle. The damper plate is connected with the horizontal axis and can rotate around the horizontal axis with an adjustable rotation angle of 0-90°. The damper plate is flat or streamlined, preferably streamlined. The barrel is straight or streamlined, preferably streamlined. The lower ends of the waterproof board and the deflector are respectively connected with drainage grooves. The throat, barrel, waterproof plate and deflector are all fixed by the frame.

Because the main parts of the utility model, such as the throat, cylinder body, waterproof plate, deflector, etc., are all fixed by the frame, there is no electric dragging, and there are no high-speed running parts, so its obvious advantage is that as long as the appropriate throat area and cylinder are selected, The height of the building can also achieve sufficient ventilation by using the atmospheric pressure difference caused by the air bulk density difference caused by the indoor and outdoor temperature difference. The device is naturally ventilated, and there is no power consumption, noise and wear caused by forced ventilation caused by electric dragging.

The roof ventilator will be further described below with the accompanying drawings as an example.

Figure 1 is a front view of the roof ventilator.

Figure 2 is a side view of the roof ventilator.

Fig. 3 is the front view of the waterproof board and the drainage groove connected to its lower end, and the shape of the deflector is similar to it.

Fig. 4 is a sectional view of A-A in Fig. 3 .

In Figure 1 and Figure 2; 1 is the throat, 2 is the damper shaft installed horizontally, the dotted line shown in 3 is the position where the damper plate is horizontally closed, 4 is the damper plate, the two side plates 5 and the wall plate 11 The four sides are surrounded to form the cylinder of the roof ventilator, 6 is the drainage groove of the waterproof board, 7 is the waterproof board, 8 is the drainage groove of the deflector, and 9 is the deflector. Rain falls on the waterproof board and the deflector in rainy days Drain water downward through the drainage groove, and 10 is an end plate. Throat, barrel, waterproof plate, and deflector are all supported and fixed by the frame, which are omitted in the figure. Indoor hot air is discharged upward from the throat through the air valve, the gap between the inner cavity of the cylinder, the waterproof plate and the deflector.

Claims (6)

1. The roof ventilator used for exhausting air from hot workshops of industrial enterprises is composed of cylinder, throat, air valve, waterproof plate, deflector, drainage groove and frame, etc. It is characterized in that the cylinder is connected with the throat, The throat is supported on the reserved hole on the roof, the throat is equipped with a damper plate, the upper part of the inner cavity of the cylinder is fixed with a "herringbone"-shaped waterproof plate, and a deflector inclined in the same direction is fixed at a certain distance outside it. 2. The roof ventilator according to claim 1, characterized in that the cross-sectional shapes of the throat and the barrel are both circular or rectangular. 3. The roof ventilator according to claim 1, characterized in that the damper plate is connected to a horizontal shaft fixed on the throat, and the rotation angle of the damper plate around the horizontal axis is adjustable from 0° to 90°. 4. The roof ventilator according to claim 1, characterized in that the damper plate is flat or streamlined, preferably streamlined. 5. The roof ventilator according to claim 1, characterized in that the barrel is straight or streamlined. 6. The roof ventilator according to claim 1, characterized in that the lower ends of the waterproof board and the deflector are respectively connected with drainage grooves.

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