High-Pressure Nozzle Axial Compensation for Low-Flow Balancing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing high pressure nozzles require a large percentage of liquid to balance the rotating shaft, leading to inefficiency in surface cleaning and are limited in their ability to accommodate different nozzle heads due to self-regulation constraints.
Innovation Solution
Incorporating an axial pressure compensator within the nozzle's internal channel to redirect axial forces away from the nozzle head support shaft, reducing the liquid required for balancing and allowing compatibility with various nozzle heads having different exit angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a self-balancing rotating shaft design is used, then axial forces are automatically balanced, but a large percentage (30-40%) of liquid volume is required to create the liquid bearing layer
Solution Approach 1:
The internal channel is segmented into multiple sections: an inlet section, a balancing section with radial channels, and an outlet section. This segmentation allows the liquid flow to be divided into different functional paths, with radial channels extracting liquid for bearing purposes while the main axial flow continues for cleaning, thereby reducing the proportion of liquid needed for balancing.
Solution Approach 2:
Radial channels act as intermediaries that transfer liquid from the axial flow path to the bearing region. These channels mediate between the high-pressure inlet and the support shaft bearing surface, enabling controlled liquid delivery for balancing without requiring the entire liquid volume to be diverted for bearing purposes.
2Reliability
If the internal channel geometry is optimized for one type of nozzle head, then self-regulation works well, but the design cannot accommodate different types of nozzle heads with different axial forces
Solution Approach 1:
The internal channel geometry is designed with universal characteristics that work across different nozzle head types. The balancing section uses radial channels with dimensions and positioning that provide effective self-regulation for various axial force magnitudes, making the same internal channel design compatible with different nozzle heads having different exit angles and pressure classes.
Solution Approach 2:
The internal channel parameters (such as radial channel diameter, length, and angular positioning) are optimized to provide a range of balancing capabilities that accommodate different axial force conditions. This parameter optimization allows the same geometry to effectively self-regulate across varying operational conditions and nozzle head configurations.
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
Substantially reduces the liquid volume needed for balancing, enabling efficient cleaning with less than 25% of the total liquid volume used for bearing purposes, and facilitates the use of diverse nozzle heads across different pressure classes.
Implementation Method 1
an axial pressure compensator arranged in the internal channel, wherein the axial pressure compensator is arranged to substantially compensate axial pressure force from liquid entering the channel at the liquid inlet end
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention provides a high pressure nozzle (1), comprising: ⋅ a longitudinal housing (2) having a liquid inlet end (3) and a liquid outlet end (4) opposite to the liquid inlet end and comprising an internal channel (8) running from the liquid inlet end to the liquid outlet end, ⋅ a nozzle head support shaft (9), rotatably arranged partially in the internal channel (8) and comprising a liquid channel (22) in fluid communication with the internal channel, and ⋅ a rotary nozzle head (10) supported on the nozzle head support shaft and arranged outside the housing, wherein the rotary nozzle head is arranged to rotate about a longitudinal axis of rotation (A) to provide a rotating spraying of liquid jetted from the rotary nozzle head, characterized in that the high pressure nozzle comprises an axial pressure compensator (12)arranged in the internal channel, wherein the axial pressure compensator is arranged to substantially compensate axial pressure force from liquid entering the channel at the liquid inlet end.