Water spray head

Abstract

The invention provides a water spray head which can ensure the size of sprayed drops and increase the spraying distance along the horizontal direction to enlarge the protective area. A mutli-head type water spray head is arranged on a plurality of water spray holes (9,10) on a bowl-shaped flow guide plate (2) in a penetrating way and arranged in a circular way. The water spray holes arranged in a circular way are arranged on a plurality of ladder parts in a penetrating way. The flow guide plate (2) is arranged on the main body of a water flow port (3). The upper part of the uppermost water spray hole (9) is provided with a flange part (11).

Description

technical field [0001] The present invention relates to a sprinkler head for spraying water to extinguish a fire when a fire occurs, and more particularly to a water sprinkler head. Background technique [0002] The sprinkler head is one of the open type heads whose nozzles are usually open, and water is sent to the sprinkler head by the action of a fire detector or a fire sensor. The sprinkler head is installed on a higher part of the ceiling than a normal closed type sprinkler head (a sprinkler head in which the nozzle is usually closed and the thermal decomposition part is activated by the heat of the fire to open the nozzle). If the enclosed sprinkler head is installed in a high ceiling, it will take time for the heat of the fire to reach the ceiling to activate the enclosed sprinkler head, which may spread the fire. [0003] In such a high-ceiling building, an open head is used for initial fire extinguishing. Among the open type heads, sprinkler heads are installed in...

AI Technical Summary

Problems solved by technology

[0007] The water sprayed from the above-mentioned sprinkler head is water droplets of a certain size or more, so it is easy to drop from the height where the sprinkler head is installed to the floor surface, but in the case of expanding the protection area, it is necessary to use The spray pressure and water spray volume of the sprinkler head increase, so that the splash distance of the water sprayed from the sprinkler head in the horizontal direction increases, or the spray water volume sprayed into the expanded protection area increases

However, if the water spray pressure and water spray volume are increased, there is a problem that the size of the piping connecting the water source and the water spray head must be increased, and the capacity of the pump for supplying water to the water spray head must be increased, resulting in an increase in equipment cost.

[0008] On the other hand, if the size of the water droplets sprayed from the sprinkler head is reduced, although the splashing distance of the water droplets in the horizontal direction increases, but due to the influence of air resistance and air conditioning equipment, the water is sprayed to places outside the protected area. Or the spray water distribution is not uniform in the protected area, so that the water volume and spray water distribution above the regulations stipulated by the law may not be obtained

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