Rotational Nozzle Device for Paper Machine Wire Cleaning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing high-pressure nozzle devices for paper machines consume excessive water and may not thoroughly clean double-layer sheet-forming sieves, requiring additional effort, while existing technologies struggle to balance cleaning performance with reduced water usage.
Innovation Solution
The nozzle device features multiple nozzle elements with reduced diameters arranged to form laminar jets, allowing for improved cleaning performance with reduced water consumption, and a rotationally symmetrical design enabling flexible positioning and alignment for enhanced cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If a single nozzle with large diameter is used, then water consumption is high, but cleaning performance is maintained; if nozzle diameter is reduced, then water consumption decreases, but cleaning performance deteriorates
Solution Approach 1:
The single large-diameter nozzle is segmented into multiple smaller nozzles arranged in a radial pattern. This segmentation allows the system to reduce water consumption per nozzle while maintaining overall cleaning performance through the combined effect of multiple jets, directly resolving the contradiction between water consumption and cleaning effectiveness
Solution Approach 2:
The invention transitions from a single-point nozzle to a multi-point radial arrangement, adding spatial dimensionality to the nozzle configuration. This dimensional change enables distributed water application across the cleaning surface, achieving both reduced water consumption and maintained cleaning performance
2Reliability
If multiple nozzles are added to improve cleaning performance, then cleaning effectiveness increases, but device complexity increases
Solution Approach 1:
Multiple nozzles are merged into a single integrated nozzle body with a radial arrangement. This merging approach maintains cleaning performance through multiple jets while simplifying the overall device structure by consolidating multiple nozzle functions into one unified component, resolving the contradiction between cleaning performance and device complexity
Solution Approach 2:
The radial nozzle arrangement provides multi-functionality by enabling the single nozzle body to deliver multiple jets simultaneously in different directions, achieving comprehensive cleaning coverage while maintaining a relatively simple device structure
3Adaptability or versatility
If fixed nozzle configuration is used, then manufacturing is simple, but cleaning flexibility is limited; if adjustable nozzle configuration is provided, then cleaning flexibility increases, but manufacturing complexity increases
Solution Approach 1:
The invention employs asymmetric nozzle configurations within the radial arrangement, allowing different nozzle orientations and angles to be implemented for specific cleaning tasks. This asymmetric design provides cleaning flexibility while maintaining manufacturing simplicity through standardized radial positioning features
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
This configuration achieves adequate cleaning performance with significantly reduced water consumption and increased flexibility in positioning, ensuring thorough cleaning of double-layer sheet forming wires and felts with reduced effort.
Implementation Method 1
at least one first nozzle element (8) is arranged, which forms the liquid passing through the nozzle channel (7) into a laminar jet
Data Source
Figure 1~6
AI summary
The invention therefore relates to a nozzle device (1) for detachable arrangement in the outlet of a tubular nozzle manifold, which is associated with a high-pressure cleaning or conditioning unit of a paper machine, with a rotationally symmetrical nozzle body (2) which has a carrier (3) shaped as an annular disk with a central recess (5) enclosed by it and a dome (6) which is curved on a flat side (4) of the carrier (3) with its wall above the recess (5), and with a first nozzle channel (7) extending through the wall, in which at least a first nozzle element (8) is arranged which forms the liquid passing through the nozzle channel (7) into a laminar jet, wherein the carrier (3) of the nozzle body (2) has an outer contour with a constant curvature or a curvature that changes with respect to the axis of rotational symmetry of the nozzle body (2). In order to have a nozzle device (1) available that is easy to manufacture and that performs the cleaning orTo improve the conditioning performance of the associated nozzle assembly or spray tube, while consuming less water as cleaning fluid and offering greater flexibility in the cleaning process itself, it is proposed to provide at least one second nozzle element (8) in the first nozzle channel (7) of the nozzle body (2), or at least one further nozzle channel (7) extending through the wall of the dome (6) with at least one further nozzle element (8) on the nozzle body (2), each for forming a laminar jet which, together with the first jet, passes through the recess (5) of the support (3), and at least the support (3) of the nozzle body (2) has multiple rotational symmetry, and the dome (6) has rotational symmetry of the same or different order as the support (3), or is rotationally symmetric with respect to the axis of rotation of the nozzle body (2). (Fig. 3).