Pipe-Cleaning Nozzle With Ejector Suction for Material Removal
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Solution Overview
Problem
Existing nozzles for cleaning pipe interiors suffer from low suction efficiency and can get stuck in material inside the pipe.
Innovation Solution
A nozzle design featuring rinsing fluid outlets and material suction inlets that create an ejector function, allowing for efficient propulsion and cleaning by directing rinsing fluid both forward and backward, with fluid and material being drawn into tubes for discharge in the backward direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If prior art nozzles are used for cleaning pipe interiors, then the cleaning function is provided, but the suction efficiency is low
Solution Approach 1:
The nozzle is divided into multiple functional segments: rinsing fluid discharges for propulsion and cleaning, rinsing fluid outlets for suction, and tube outlets for material discharge. Each segment performs a specific function, allowing the nozzle to simultaneously achieve efficient propulsion, effective suction, and reliable material removal without the limitations of single-function prior art nozzles.
Solution Approach 2:
The nozzle integrates multiple functions into a single device: it propels forward through rinsing fluid discharges, cleans the pipe interior through rinsing fluid jets, and simultaneously creates suction through rinsing fluid outlets to draw in and remove material. This multi-functionality resolves the contradiction by making the nozzle both productive (efficient suction) and reliable (effective cleaning and material removal).
2Reliability
If prior art nozzles are used for cleaning pipe interiors, then the cleaning function is provided, but the nozzle can get stuck in material inside the pipe
Solution Approach 1:
The invention replaces purely mechanical contact-based cleaning with a fluid-dynamics-based system. Rinsing fluid discharges provide propulsion without mechanical contact, while rinsing fluid outlets create suction to remove material. This substitution eliminates the risk of the nozzle getting stuck in material, as the fluid-based interaction allows smooth passage through the pipe while maintaining reliable cleaning function.
Solution Approach 2:
The nozzle utilizes hydraulic principles by using rinsing fluid to create suction through the rinsing fluid outlets and tubes. This pneumatic-hydraulic mechanism draws material into the nozzle and discharges it through tube outlets, enabling the nozzle to move freely through the pipe without mechanical contact that could cause it to get stuck, while simultaneously performing the cleaning function.
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 nozzle efficiently propels and cleans the pipe interior while effectively removing material, balancing cleaning and propulsion functions, and preventing blockages.
Implementation Method 1
The rinsing fluid outlets, the material suction inlets and the tubes surrounding the rinsing fluid outlets result in an ejector function which can draw fluids and/or material located in front of the nozzle into and through the nozzle
Implementation Method 2
the rinsing fluid discharges makes it possible to efficiently propel the nozzle in the forward direction inside the pipe
Data Source
AI summary
A method and system having nozzle for cleaning the interior of a pipe is provided. The nozzle has a rinsing fluid inlet and a plurality of rinsing fluid discharges, wherein each of the rinsing fluid discharges is arranged for discharging fluid substantially in a rearward direction. The nozzle has a plurality of rinsing fluid outlets for discharging rinsing fluid substantially in the rearward direction. Each of the rinsing fluid outlets is enclosed by a tube forming a passage between the tube and the rinsing fluid outlet. Each tube is connected to a material suction inlet and comprises a tube outlet for discharging a mixture of material and rinsing fluid.