CN201071732Y - Ventilation structure used for low wind well - Google Patents

Abstract

The utility model relates to a shutter used for ventilation, specifically to a ventilating structure used for a lower air shaft. The ventilating structure comprises at least two groups of shutters, and the adjacent shutter groups are placed and fixed with similar 'V' shape. The utility model has the advantages that the shutter can be installed inside the air shaft to shade rainwater in vertical direction, which makes the air shaft lower and smaller and suitable for being combined with the surrounding environment and very applicable at urban center sections. The environment which is unsuitably arranged with the higher air shaft in accordance with the planning requirements, the air shaft height only need to reach local flood protection height with low trees planted in surrounding environment, thereby not only satisfying the requirements for ventilation and rainwater protection, but also having no affect on the surrounding environment, so as to make the air shaft be fit with the environment.

Description

Ventilation structures for low-wind shafts

technical field

The utility model relates to shutters for ventilation, in particular to a ventilation structure for low wind wells.

Background technique

In subways and tunnels, the intake, exhaust and piston air are often directed to the ground through air shafts. The form of the air shaft generally adopts a high air shaft, a low air shaft or a combination with a ground building. The form of exhaust air has lateral exhaust and upward air exhaust. When using lateral exhaust, it is generally sufficient to install ventilation louvers on the side wall of the air shaft. The ventilation louvers on the outer wall are installed on the vertical side wall to mainly block lateral rainwater, so the height of the air shaft is high and the volume is also large. However, for low wind wells facing the sky, it is necessary to solve the rain and drainage problems. If there is no equipment installed in the lower part of the wind shaft, and a water collection well can be installed, the rainwater can be collected through the water collection well and discharged; but when the lower part of the air shaft needs to be arranged, it cannot For rain-drenched equipment, and the ground has landscape requirements, it cannot meet the use requirements only by setting up water collection wells when lateral exhaust can not be set up like high wind wells.

Contents of the invention

The purpose of this utility model is to provide a ventilation structure for low wind shafts according to the deficiencies of the above-mentioned prior art. Rain protection and ventilation of wells.

The utility model goal is realized by the following technical solutions:

A ventilation structure for a low wind shaft, including louvers, characterized in that the ventilation structure is composed of at least two groups of louvers, and adjacent groups of louvers are placed and fixed in an approximate "V" shape.

The "V" shape is fixedly arranged with the opening upward, or fixedly arranged with the opening downward, or alternately arranged and fixedly arranged in the above two ways.

The two groups of louvers fixedly placed in the "V" shape, the angle between them is 18°-22°.

Two groups of louvers are fixedly arranged upwards at the opening, and a concave water collection tank is fixedly arranged below the intersection.

The lower part of the sump is provided with a rainwater pipe for drainage.

Two groups of louvers are fixedly arranged downwards in the opening, and a concave rain-proof cap is fixedly arranged above the intersection.

Each group of louvers is composed of several louvers and a frame, and the frame and the two ends of the louvers are welded and fixed, and the louvers are arranged in parallel.

The utility model has the advantages that, since it can be installed inside the air shaft to block the rainwater in the vertical direction, the height of the air shaft can be low, the volume is small, and it should be combined with the surrounding environment. It is very suitable for the environment in the center of the city. According to the planning requirements, it is not suitable to set up a high air shaft. The wind shaft is integrated into the environment.

Description of drawings

Accompanying drawing 1 is the utility model application structure schematic diagram;

Accompanying drawing 2 is the front structure diagram of the louver group of the present utility model;

Accompanying drawing 3 is the schematic diagram of the A-A section structure of the louver group of the present invention;

Accompanying drawing 4 is the plan view of louver group of the present utility model;

Detailed ways

The features of the utility model and other relevant features are further described in detail below in conjunction with the accompanying drawings through the embodiments, so as to facilitate the understanding of those skilled in the art:

As shown in Figures 1-4, the numbers 1-6 respectively represent: louver group 1, louver 2, rain cap 3, water collection tank 4, rainwater pipe 5, frame 6.

The built-in rain-proof and ventilation louver involved in this embodiment is composed of a combination of several louver groups 1, and the adjacent louver groups 1 are placed and fixed in an approximate "V" shape, and the "V" shape The included angle is 20°. Therefore, according to the width of the tuyere, the section can be arranged in the form of V or W, and the length direction can also be provided with multiple sets of shutters as required.

The louver group 1 is composed of several louvers 2 and frames 6, which are fixed by welding and can be made of stainless steel or aluminum alloy, wherein several louvers 2 are arranged in parallel. The shape of the louver 2 is shown in the figure, and the louver group 1 formed by it can play the role of blocking rainwater and maintaining ventilation.

The "V"-shaped louver group with the opening facing upward is fixedly provided with a concave water collection tank 4 below the intersecting part, which is used to collect rainwater at the bottom of the louver group 1 . The bottom of the sump 4 is provided with a rainwater pipe 5 for drainage.

The "V" shaped louver group with the opening facing down is fixed with a concave rain shield cap 3 above the intersection, which is used to prevent the top rainwater from flowing in between the two louver groups 1 .

The rain cap 3 and the gutter 4 are made of stainless steel or aluminum alloy.

During assembly, the top of the louver group 1 on the inner wall should be connected with the wall by fasteners, and the bottom is fixed with the sump 4. The two ends of the rain cap 3 need to be connected with the well wall and fixed with the louver group 1. When tuyere is too long, channel steel can be added at 4 places of rain cap 3 and sump, to fix rain cap 3 and sump 4.

The size of the louvers 2 in this embodiment and the distance between the louvers 2 and 2 can be determined according to the specific requirements of the project. Generally, the louvers are wide and the spacing is large. Excessive overlapping is unfavorable to ventilation, otherwise rainwater may float into the air duct, but the choice of the shape of the louvers 2 is not limited to this embodiment, as long as it can meet the requirements of the present invention.

The installation height of this embodiment in the air shaft is selected and set according to specific requirements, and is usually installed at the bottom of the air shaft.

Claims (7)

1. A ventilation structure for a low air shaft, comprising louvers, characterized in that the ventilation structure is composed of at least two groups of louvers, and the adjacent louver groups are placed and fixed in an approximate "V" shape . 2. A ventilation structure for low air shafts according to claim 1, characterized in that the "V" shape is fixedly placed with the opening upwards, or fixedly placed with the opening downwards, or is The aforementioned two methods alternately place fixed settings. 3. A ventilation structure for low air shafts according to claim 1, characterized in that two groups of louvers are fixedly placed in the "V" shape, and the angle between them is 18°- 22°. 4. A ventilation structure for a low air shaft according to claim 2, characterized in that two groups of louvers are fixedly arranged upwards at the opening, and a concave water collection tank is fixedly arranged below the intersection. 5. A ventilation structure for a low wind shaft according to claim 4, characterized in that a rainwater pipe for drainage is provided at the lower part of the sump. 6. A ventilation structure for a low wind well according to claim 2, characterized in that two groups of louvers are fixedly arranged downwards at the opening, and a concave rain shield is fixedly arranged above the intersection. 7. A ventilation structure for a low wind shaft according to claim 1, wherein each group of louvers is composed of several louvers and a frame, and the frame and the two ends of the louvers are welded and fixed, wherein the louvers and the louvers set in parallel.

Images