Spray Head Nozzle Arrangement Uniform Fluid Distribution
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Solution Overview
Problem
Conventional spray heads for fire fighting systems fail to achieve uniform fluid distribution, resulting in ineffective fire extinguishing, particularly at distances below the spray head, and require a large number of units to cover an area, increasing costs.
Innovation Solution
A spray head design featuring multiple sets of outlet nozzles arranged at different radial distances and angles around a center axis, with each set having an identical expansion passage section, ensuring uniform fluid distribution over a larger area by varying the radial and escaping angles of the nozzles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If nozzles are arranged in a semi-sphere with various dimensions and orientations, then fire fighting coverage is extended to different radial distances, but uniform fluid distribution cannot be achieved
Solution Approach 1:
The patent applies local quality by arranging nozzles in three distinct sets at different radial distances from the center axis, with each set having nozzles oriented at specific angles. The first set has nozzles at a first radial distance with first orientation, the second set at a second radial distance with second orientation, and the third set at a third radial distance with third orientation. This localized differentiation in nozzle positioning and orientation across different spatial zones achieves both extended coverage area and uniform fluid distribution pattern.
2Area of stationary object
If angled outlet nozzles are arranged in a sidewall portion with angles up to 120 degrees, then radial coverage is improved, but downward fluid distribution is reduced
Solution Approach 1:
The patent segments the nozzle arrangement into three distinct sets with different orientations and radial distances. The first set of nozzles is oriented at angles suitable for radial coverage, the second set at intermediate angles, and the third set at angles optimized for downward distribution. This segmentation allows each subset to specialize in a particular distribution direction, collectively achieving both extensive radial coverage and adequate downward fluid quantity.
3Device complexity
If conventional spray head designs are used, then device complexity is reduced, but the number of required spray heads increases
Solution Approach 1:
The patent utilizes three-dimensional spatial arrangement by positioning nozzles at different radial distances from the center axis and orienting them at different angles in three-dimensional space. The first set of nozzles is positioned at a first radial distance with first orientation, the second set at a second radial distance with second orientation, and the third set at a third radial distance with third orientation. This multi-dimensional configuration enables a single spray head to cover a significantly larger area compared to conventional two-dimensional nozzle arrangements, thereby reducing the total number of spray heads required.
Data Source
AI summary
The present invention relates to a spray head for effective fire fighting. The spray head according to the present invention provides a uniform distribution of a fluid, such as pressurized water, over a relatively large area. To achieve this the spray head comprises a body defining a center axis and further comprising a fixation structure for fixing the spray head to a fluid supply system, a fluid inlet, a plurality of outlet nozzles arranged around the center axis, and a flow path between the inlet and the nozzles, wherein a first set of nozzles are located at a larger radial distance from the center axis than a second set of nozzles, and wherein the second set of nozzles are located at a larger radial distance from the center axis than a third set of nozzles, and wherein the nozzles comprise an essentially identical expansion passage section. The present invention further relates to method for providing a uniform fluid distribution.