Independent Heated Hoses With Alternating Power Control
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Solution Overview
Problem
Traditional heated hoses in plural component dispensing systems simultaneously receive electrical energy, which can lead to inefficiencies and difficulties in independently controlling the temperature of each hose.
Innovation Solution
The system employs independent electrically heated hoses, where a controller alternately powers the heating circuits of the first and second heated hoses, allowing for independent temperature control and resistance measurements without separate temperature sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional heated hoses simultaneously receive electrical energy, then both hoses are heated, but independent temperature control of each hose becomes difficult
Solution Approach 1:
The patent divides the heating control into separate independent circuits for each hose. Each heated hose has its own heating circuit that can be controlled independently by the controller, allowing separate temperature management of the A-side and B-side hoses without requiring complex interconnected control systems.
Solution Approach 2:
The controller dynamically switches between powering the first heated hose and the second heated hose based on operational requirements. The system can alternately activate different heating circuits to maintain optimal temperatures for different fluid components at different times, providing flexible adaptive temperature control.
2Measurement precision
If separate temperature sensors are added for each hose, then independent temperature measurement is achieved, but system complexity and cost increase
Solution Approach 1:
The controller performs multiple functions using a single measurement circuit. It alternately measures the resistance of heating elements in different hoses and uses these resistance measurements to infer temperatures of both hoses sequentially, eliminating the need for separate temperature sensors and measurement circuits for each hose.
Solution Approach 2:
The heating elements themselves serve as temperature sensors through their resistance measurements. The controller measures the resistance of each heating element alternately, and since resistance correlates with temperature, the system uses the heating elements' inherent electrical properties for temperature sensing without requiring additional sensor components.
3Device complexity
If a single circuit powers both hoses, then wiring is simplified, but resistance measurements for each hose require separate circuits
Solution Approach 1:
The controller performs resistance measurements periodically by alternating between the first and second heated hoses. It measures the resistance of the first hose's heating element, then measures the resistance of the second hose's heating element, repeating this sequence. This periodic measurement approach allows a single measurement circuit to accurately obtain resistance data for both hoses without requiring separate dedicated measurement circuits.
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 configuration enables efficient and precise temperature control of each fluid component, improving the mixing and properties of the activated plural component spray material, while also reducing costs by eliminating the need for separate measurement circuits.
Implementation Method 1
The heated hose includes a heating element wrapped around an outer surface of the hose and in fluid communication with the fluid flowing through the hose. The controller is configured to independently supply an electric current to the heated hose to increase the temperature of the fluid flowing through the hose.
Implementation Method 2
a heating element wrapped around an outer surface of the hose and in fluid communication with the fluid flowing through the hose
Data Source
AI summary
A plural component dispensing system includes a first heated hose, a second heated hose, a controller, and a dispensing device. The first heated hose and the second heated hose include electrical wires that supply heat to the first and second heated hoses to heat fluid components within the first and second heated hoses. The first and second heated hoses are electrically coupled to the controller and are fluidly coupled to the dispensing device. The controller is configured to control and alternate the electrical power supplied to the first heated hose and the second heated hose to heat the first heated hose independent of the second heated hose.