Dual Chamber Backpack Sprayer Segmentation
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Solution Overview
Problem
Backpack sprayers require users to completely empty and clean the tank between different chemical applications, leading to waste, contamination risks, and operational complexity due to the lack of effective segregation between chemical and water tanks.
Innovation Solution
A dual chamber backpack sprayer system with separate tanks for diluent, pressurized fluid, and liquid concentrate, where the pump unit mixes the fluids and delivers them to a pressurized chamber, allowing for easy swapping of chemical concentrates and reduced contamination risks through a modular design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single tank is used for both chemical concentrate and diluent, then the sprayer structure is simple, but chemical waste and cross-contamination increase when switching between different chemical applications
Solution Approach 1:
The sprayer is divided into separate tanks: a first tank for diluent and a second tank for chemical concentrate. This segmentation allows independent management of each fluid, preventing cross-contamination and chemical waste when switching between different chemical applications, while maintaining a relatively simple overall structure.
2Device complexity
If a single tank is used for both chemical concentrate and diluent, then the sprayer structure is simple, but contamination risk increases when switching between different chemical applications
Solution Approach 1:
The sprayer is divided into separate tanks: a first tank for diluent and a second tank for chemical concentrate. This segmentation allows independent management of each fluid, preventing cross-contamination when switching between different chemical applications, while maintaining a relatively simple overall structure.
3Object-affected harmful factors
If the tank must be completely emptied and cleaned between applications, then contamination is prevented, but operational time and complexity increase
Solution Approach 1:
The sprayer is divided into separate tanks: a first tank for diluent and a second tank for chemical concentrate. This segmentation allows independent management of each fluid, eliminating the need to clean the entire tank between applications and significantly reducing operational time and complexity.
Solution Approach 2:
The chemical concentrate is extracted into a separate second tank from the main diluent tank. This extraction allows the diluent tank to be quickly emptied and refilled without thorough cleaning, while the chemical tank can be independently managed and replaced, dramatically reducing cleaning time between applications.
4Loss of substance
If separate tanks for chemical and water are used, then chemical waste and contamination are reduced, but system complexity and plumbing requirements increase
Solution Approach 1:
The sprayer is divided into separate tanks: a first tank for diluent and a second tank for chemical concentrate. This segmentation reduces chemical waste and contamination while maintaining simple plumbing through direct connection of each tank to the pump system, avoiding complex interconnections.
Solution Approach 2:
The pump system is designed to handle both diluent from the first tank and chemical concentrate from the second tank, mixing them in the desired proportions. This multi-functionality allows a single pump system to manage both separate tanks, reducing overall plumbing complexity despite the segmented tank design.
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 system minimizes chemical waste, reduces cross-contamination, and simplifies operation and cleaning by segregating chemical and water tanks while maintaining ease of use and maintenance.
Implementation Method 1
The pump unit is configured to receive the diluent from the first tank and the liquid concentrate from the third tank to produce a mixed fluid
Implementation Method 2
The mixed fluid is delivered to the second tank as the pressurized fluid
Data Source
AI summary
A dual chamber backpack sprayer system includes first, second and third tanks, and a pump unit. The first tank includes a first tank housing defining an open internal volume configured to hold a diluent therein. The second tank is dimensioned to be received within the internal volume of the first tank and is configured to hold a pressurized fluid therein. The third tank includes a third tank housing configured to hold a liquid concentrate therein. The pump unit is fluidly coupled to the first tank, the second tank and the third tank. The pump unit is configured to receive the diluent from the first tank and the liquid concentrate from the third tank to produce a mixed fluid. The mixed fluid is delivered to the second tank as the pressurized fluid.