Concealed Sprinkler Nosecone Stepped Design
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Solution Overview
Problem
Conventional sprinkler systems, particularly concealed sprinklers, face challenges in achieving optimal spray patterns and distribution of fluid due to limitations in the design of their nosecones and deflectors, which affect their performance in fire suppression.
Innovation Solution
The development of a nosecone for concealed sprinklers featuring stepped bodies and angled surfaces to direct fluid output effectively, coupled with a deflector assembly, ensures efficient distribution and adherence to target spray patterns, enhancing fire suppression capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional nosecone design is used, then the sprinkler system is simple in structure, but the spray pattern distribution is suboptimal
Solution Approach 1:
The nosecone is divided into multiple segments or zones with different geometric characteristics. Each segment can have different angles, curvatures, or shapes to control fluid flow in different directions, thereby achieving precise spray pattern distribution while maintaining a relatively simple overall structure.
Solution Approach 2:
Different portions of the nosecone are designed with locally optimized properties. For example, the front portion may have a specific angle to direct spray forward, while the rear portion has different characteristics to control lateral distribution. This localized optimization achieves precise spray patterns without requiring complex overall structure.
2Manufacturing precision
If the nosecone has complex geometry to achieve target spray pattern, then fluid distribution improves, but manufacturing difficulty increases
Solution Approach 1:
The complex nosecone geometry is segmented into multiple standardized features such as steps, angles, and curved surfaces that can be manufactured using conventional machining operations. Each segment can be produced separately and then assembled, reducing overall manufacturing difficulty while maintaining spray pattern accuracy.
Solution Approach 2:
The design transitions from simple 2D profiles to 3D stepped structures and angled surfaces. By adding dimensional complexity in specific locations (such as steps and angles) rather than throughout the entire component, the patent achieves accurate spray patterns while keeping manufacturing feasible through targeted geometric features.
Data Source
AI summary
A concealed sprinkler includes a body, a seal, an activation element, a deflector, and a nosecone. The body includes a passageway having an inlet and an outlet, and defines a longitudinal axis through the inlet and the outlet. The seal couples with the outlet. The activation element couples with the seal. The activation element changes from a first state to a second state responsive to a fire condition to allow the seal to be displaced from the outlet. The deflector is coupled with the body and positioned along the longitudinal axis. The nosecone is coupled with the deflector and includes a first portion positioned along the longitudinal axis, a second portion spaced from the first portion and extending further outward than the first portion, and a wall forming a step between the first portion and the second portion.