Stripper Nozzle Radial Channel Geometry for Coolant Recirculation

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Solution Overview

Problem

Existing cooling and lubrication systems for metal products with continuous longitudinal shapes face challenges in containing pressurized coolant/lubricant fluids, leading to leaks, inefficiencies, and increased maintenance and safety risks due to high production speeds and volumes.

Innovation Solution

A high efficiency stripper nozzle with radial channels and adjustable geometry is designed to connect to existing nozzles, utilizing countercurrent flows and vacuum recirculation to prevent fluid loss, allowing for customizable configurations based on process parameters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If conventional stripper nozzles and gaps are used to reduce fluid loss, then some fluid containment is achieved, but fluid leaks and excessive flow continue at high production speeds

Engineering Contradiction:
Improvecoolant/lubricant fluid lossVSAvoidproduction speed
Core Design Contradiction:
Loss of substanceVSProductivity

Solution Approach 1:

The stripper nozzle is divided into multiple independent radial channels that segment the fluid flow paths. Each channel contains a specific portion of the coolant/lubricant flow, allowing precise control over fluid distribution and containment throughout the nozzle structure, preventing uncontrolled leakage even at high production speeds

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The nozzle design incorporates adjustable radial channels with variable angles (5° to 90°) that can be dynamically configured based on production requirements. This dynamic adjustability allows the system to optimize fluid containment effectiveness across varying production speeds, maintaining proper fluid control whether operating at low or high velocities

Inventive Principle:
Principle #15Dynamics

2Loss of substance

If radial channels with specific geometry are used to restrain fluid circulation, then fluid containment is improved, but device complexity increases

Engineering Contradiction:
Improvecoolant/lubricant fluid lossVSAvoidnozzle structure complexity
Core Design Contradiction:
Loss of substanceVSDevice complexity

Solution Approach 1:

The radial channel structure serves multiple functions simultaneously: it distributes coolant/lubricant flow, contains fluid within the nozzle, provides structural support, and enables adjustable flow patterns through angle variation. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity while achieving superior fluid containment

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The design utilizes parameter changes in the radial channels, specifically varying the radial angles between 5° and 90°, to optimize fluid containment without fundamentally changing the overall nozzle architecture. By adjusting these geometric parameters, the system achieves effective fluid restraint while maintaining a relatively simple and manufacturable structure

Inventive Principle:
Principle #35Parameter changes

3Productivity

If pressurized fluid is used for high-speed production, then productivity increases, but fluid containment becomes more difficult and safety risks increase

Engineering Contradiction:
Improveproduction speedVSAvoidfluid containment reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The stripper nozzle utilizes hydraulic principles by employing pressurized coolant/lubricant flow through specifically designed radial channels. The hydraulic design ensures that the pressurized fluid is effectively contained and directed through the radial passages, allowing high-speed production with improved reliability by preventing fluid escape that could compromise safety and operational reliability

Inventive Principle:
Principle #29Pneumatics and hydraulics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system effectively prevents coolant/lubricant leaks and excessive flow, reducing waste and maintenance needs while maintaining efficient cooling/lubrication processes across varying production speeds and fluid types.

Implementation Method 1

utilizing countercurrent flows and vacuum recirculation to prevent fluid loss

Methodology Applied
Scientific EffectCountercurrent flow:

Implementation Method 2

utilizing countercurrent flows and vacuum recirculation to prevent fluid loss

Methodology Applied
Scientific EffectVacuum recirculation:

Data Source

PatentEP3530363B1System comprising a high efficiency stripper nozzle and another nozzle
Publication Date: 2023.06.07 NORTEK SA
  • EP3530363B1 patent drawingFigure 1~2

AI summary

A high efficiency stripper nozzle, with a through hole configured to be connected to the through hole of another nozzle, guide, or nozzle, which comprises several radial channels that pass through the nozzle from the perimeter zone to the hole at its entrance zone. The nozzle may be divided into several pieces which can be connected together in a removable way and replaceable, which may form the radial channels between them with different sections and angles with respect to the axis of the hole. The radial channels may contact externally with an opening located on one of the surfaces of the nozzle or on one of the surfaces of the nozzle to which the nozzle is connected.