Rotor Nozzle With Separate Drive Nozzles To Reduce Wear
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing rotor nozzles experience increased wear and reduced cleaning efficiency due to high pressure and centrifugal forces, leading to premature damage and economic losses, as they are used for both cleaning and driving the nozzle head, causing uneven wear and potential detachment of fragments.
Innovation Solution
The rotor nozzle design includes drive nozzles connected via through holes to the axial bore, allowing controlled high-pressure liquid supply, minimizing wear by aligning them away from the radial position and using a circumferential annular chamber for consistent fluid supply, with through holes guiding fluid to drive nozzles only during specific rotational positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If removal nozzles are used for both cleaning and driving the rotor nozzle, then the device complexity is reduced, but the wear of the nozzles increases significantly
Solution Approach 1:
The patent divides the nozzle system into separate functional components: drive nozzles (7) for generating rotational torque and removal nozzles (5) for cleaning deposits. This segmentation allows each component to be optimized for its specific function and wear characteristics, with drive nozzles positioned away from the radial direction to minimize wear while still providing sufficient driving force.
2Quantity of substance
If the nozzle bores wear and increase in diameter, then the volume flow increases, but the cleaning result deteriorates
Solution Approach 1:
By separating drive and removal functions into different nozzles, the patent enables independent optimization. The removal nozzles can maintain precise bore dimensions for consistent cleaning performance, while the drive nozzles can be designed with larger bores to ensure sufficient volume flow for generating rotational torque without affecting cleaning quality.
3Force
If the nozzle head rotates at higher speed due to increased volume flow, then the torque increases, but the outer surface can be destroyed by centrifugal forces
Solution Approach 1:
The patent positions the drive nozzles at an angle away from the radial direction, creating a dynamic balance in the force distribution. This angular arrangement generates sufficient torque for rotation while distributing centrifugal forces more evenly across the nozzle head structure, preventing surface destruction even at high rotational speeds.
4Force
If drive nozzles are aligned radially for maximum torque, then the rotational force increases, but the wear on drive nozzles increases
Solution Approach 1:
The patent optimizes the angular parameter of drive nozzle alignment, positioning them away from the radial direction. This parameter change reduces the direct impact of high-pressure fluid on the nozzle bore walls, minimizing wear while still generating sufficient torque through the lever arm effect of the angular arrangement.
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 design reduces wear on drive nozzles, maintains consistent nozzle head speed, improves cleaning results, and allows for earlier detection of wear, extending the nozzle's service life and reducing operational interruptions.
Implementation Method 1
a liquid under high pressure is supplied through the axial bore
Implementation Method 2
the at least one drive nozzle is aligned at a distance from the radial so that when the liquid emerges, a torque is generated which causes the nozzle head to rotate
Implementation Method 3
the pressurized fluid exits laterally from the nozzle head via the removal nozzles when in operation
Implementation Method 4
the removal nozzles serve exclusively to clean the inner wall of a pipe
Implementation Method 5
depending on the rotational position of the nozzle head, so that the at least one drive nozzle is briefly fed with the high-pressure liquid by bringing the through-bore connected to the axial bore into alignment with the inlet of the at least one drive nozzle
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A rotor nozzle, comprising a carrier element (1) having an axial bore (3) for supplying a pressurized liquid, a nozzle head (4) rotatably mounted thereon and rotatably driven by a hydraulically generated torque, which has at least one laterally exiting removal nozzle (5) openly connected to the axial bore (3), is designed such that the removal nozzle (5) is radially oriented and the nozzle head (4) has at least one laterally exiting, separate drive nozzle (7) which extends at a distance (A) from the radial (R) and is connected to the axial bore (3) via a through bore (9) of the carrier element (1) depending on the rotational position of the nozzle head (4).