Ventilation shaft structure with rain-proof louvers

Abstract

The invention relates to a ventilating shaft structure with a rainproof shutter. The ventilating shaft structure comprises a ventilating shaft. The lower portion of the ventilating shaft is arranged below the roof of a basement ventilator room and communicated with the basement ventilator room, the upper portion of the ventilating shaft protrudes out of the roof of the basement ventilator room and is arranged upwards, the upper portion of the ventilating shaft is defined by a plurality of side walls and a roof, and at least one side wall is provided with a ventilation opening communicated with the external environment. The ventilating shaft structure is characterized by further comprising a protection wall body surrounding the outside of the ventilation opening; the rainproof shutter is arranged on the protection wall body, the position of the rainproof shutter is opposite to the position of the ventilation opening, and the area of the rainproof shutter is larger than that of the corresponding ventilation opening. By means of the ventilating shaft structure, it can be avoided that as rainwater enters the ventilating shaft, an electrical device in the basement ventilator room fails while the ventilation quantity is guaranteed.

Description

technical field [0001] The invention relates to the ventilation technology of buildings, in particular to a ventilation shaft structure provided with rainproof louvers. Background technique [0002] A ventilation shaft for ventilation is usually arranged in the fan room in the basement. In order to collect or exhaust wind, the ventilation shaft is provided with a vent at a certain height above the outdoor floor. In order to prevent rainwater from entering the ventilation shaft through the vents exposed to the outside, it is necessary to install rainproof louvers at the vents, such as figure 1 As shown, the rainproof louver 200 is arranged on the vent 100, so that the vent 100 has ventilation and rainproof functions simultaneously, but there are the following problems in such a structural setting: [0003] First, some rainwater can still enter the fan room through the ventilation shaft, which affects the service life of the equipment in the fan room. Although there are rai...

AI Technical Summary

Problems solved by technology

Since the fan room is mostly made of electrical equipment and metal materials, the entry of rainwater will increase the humidity in the fan room, which will undoubtedly affect the normal operation of the electrical equipment, and may also cause corrosion and rust of the metal material, thereby shortening the life of the fan. Service life of equipment in the room

[0004] Second, the structure of the rain-proof louver itself restricts the rain-proof ability and ventilation ability of the vent

When the ventilation shaft has high requirements for rainproof, the blades of the rainproof louvers are densely arranged. At this time, the rainproof louvers have great resistance to the natural wind of the vent, which affects the ventilation volume.

When the ventilation shaft requires high ventilation volume, the blade density of the rain-proof louvers is set relatively sparsely. At this time, the rain-proof ability of the rain-proof louvers is reduced

Since the ventilation coefficient of the rain-proof louvers is usually 0.5-0.6, no matter how the blades of the rain-proof louvers are designed, they will have great resistance to the ventilation at the vents, reducing the ventilation volume.

[0005] Third, the size of the ventilation opening of the ventilation shaft has been determined after the construction is completed. Even if it is later found that the ventilation volume is reduced due to the structure of the rainproof louvers not meeting the design requirements, the size of the ventilation opening cannot be changed. It is not feasible because the project volume is relatively large and the cost is relatively high.

[0006] In summary, the current design of installing rain-proof louvers in the vents is unreasonable and needs to be improved

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