Window Cleaner Wastewater Separation Structure to Prevent Water Spraying
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Solution Overview
Problem
Conventional window cleaning machines have inadequate wastewater treatment capabilities, leading to unseparated wastewater droplets being sprayed during use, which affects cleaning efficiency and user experience, and poses a risk of re-pollution.
Innovation Solution
A handheld window cleaning machine with a wastewater separation structure, featuring a water-air separation unit, a wastewater separation unit, and a suction nozzle assembly, which includes a centrifugal fan to separate wastewater from air, preventing water spraying and improving collection efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional window cleaning machine is used, then window cleaning function is provided, but wastewater cannot be effectively separated from air, resulting in water spraying phenomenon
Solution Approach 1:
The patent divides the wastewater treatment process into two distinct stages: a water tank assembly for initial wastewater collection and a water-air separation unit for final separation. This segmentation allows each component to specialize in its function, with the water tank capturing bulk wastewater and the separation unit removing remaining droplets from air, thereby preventing water spraying while maintaining effective cleaning operation
Solution Approach 2:
The patent introduces a centrifugal fan as an intermediary device that creates negative pressure to drive air flow through the wastewater separation system. This intermediary mechanism ensures controlled air movement from the suction nozzle through the water tank and separation unit, enabling effective wastewater separation without direct exposure of wastewater to the external environment, thus preventing water spraying
2Productivity
If high-altitude window cleaning is performed manually, then window cleaning service is provided, but there is great danger and low efficiency
Solution Approach 1:
The patent replaces manual high-altitude window cleaning operations with an automated handheld cleaning machine equipped with a centrifugal fan and wastewater separation system. This mechanical substitution eliminates the need for cleaners to perform dangerous high-altitude work while maintaining or improving cleaning efficiency through the device's suction and separation capabilities
Solution Approach 2:
The patent designs a self-contained handheld cleaning device that integrates suction, wastewater collection, and water-air separation functions. The device serves itself by using its own centrifugal fan to create negative pressure, draw in wastewater, and separate water from air internally, eliminating dependency on external manual intervention for both cleaning and wastewater management
3Manufacturing precision
If wastewater is not effectively separated, then device complexity is reduced, but cleaning effect deteriorates due to re-pollution
Solution Approach 1:
The patent employs pneumatic principles by using a centrifugal fan to generate negative pressure and control air flow through the wastewater separation system. This pneumatic approach enables effective wastewater separation through pressure-driven flow patterns without requiring complex mechanical moving parts, achieving high cleaning effect while maintaining relatively simple device structure
Solution Approach 2:
The patent utilizes parameter changes in air flow velocity and pressure as air moves through the water tank and separation unit. The centrifugal fan creates specific pressure conditions that cause wastewater to separate from air naturally through condensation and gravity, achieving effective separation without complex mechanisms by simply controlling flow parameters
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
Effectively separates wastewater from air, preventing water spraying and enhancing cleaning efficiency by ensuring wastewater is collected and not re-sprayed, thus improving user experience and safety.
Implementation Method 1
The water-air separation unit includes a centrifugal fan... The centrifugal fan is used for generating negative pressure, so that air can be sucked in through the suction nozzle assembly
Implementation Method 2
a water tank assembly provided at a bottom of the shell assembly, a wastewater separation unit being provided in the water tank assembly... effectively separate wastewater from air
Implementation Method 3
The water-air separation unit includes a centrifugal fan... separating the wastewater and air
Data Source
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AI summary
A handheld window cleaning machine (100) having a wastewater separation structure, comprising: a shell assembly (120) in which a water-gas separation unit (140) is accommodated; a water tank assembly (130) provided at the bottom of the shell assembly (120), a wastewater separation unit being provided in the water tank assembly (130), the outlet of the wastewater separation unit being in communication with the inlet of the water-gas separation unit (140); and a suction nozzle assembly (110) being pluggably connected to the front end of the shell assembly (120), the outlet of the suction nozzle assembly (110) being in communication with the wastewater separation unit, wherein the air outlet of the water-gas separation unit (140) is open outward, and a wastewater backflow opening (141e) is provided at the bottom of the water-gas separation unit (140), the wastewater backflow opening (141e) being in communication with the inlet of the wastewater separation unit. By means of the window cleaning machine (100), an existing window cleaning machine is optimized and improved, the cleaning efficiency of the window cleaning machine is ensured, the wastewater collection capability of the window cleaning machine can be improved, and wastewater is effectively separated from air, so that the technical problem of being easy to spray water by the window cleaning machine is resolved.