Fluid Heating Control with Sensor Feedback and Electrical Isolation
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Solution Overview
Problem
Existing heating systems for fluid in receptacles, such as buckets, lack precise temperature control and safety, as they either overheat or fail to maintain a consistent temperature due to operational hysteresis and unsafe electrical components.
Innovation Solution
A fluid heating system comprising a processing unit, temperature sensors, and a heating element, which allows for precise temperature regulation by selectively activating and deactivating the heating element based on user-defined inputs, using semiconductor switches or relays for safe and efficient operation, and includes sensors to prevent overheating and ensure fluid presence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a thermostat is used to control heating, then temperature control is achieved, but temperature precision deteriorates due to operational hysteresis
Solution Approach 1:
The system uses a microprocessor-based control unit that continuously receives temperature signals from the temperature sensor and adjusts the heating element activation accordingly. This closed-loop feedback system eliminates the hysteresis problem of traditional thermostats by providing precise, real-time temperature monitoring and control, maintaining temperature within a narrow range around the set point.
Solution Approach 2:
The patent replaces the mechanical thermostat system with an electronic control system using a microprocessor, temperature sensor, and electrical switch. This substitution eliminates the inherent mechanical hysteresis of traditional thermostats and enables precise temperature control through electronic sensing and control mechanisms.
2Productivity
If a submersible heater is used to heat fluid, then heating efficiency is improved, but safety deteriorates due to electrical component contact with fluid
Solution Approach 1:
The patent extracts the electrical components (heating element and control electronics) from direct contact with the fluid by placing them in a separate heating chamber or container. The fluid to be heated is placed in an inner chamber that is thermally coupled to the heating elements but electrically isolated, eliminating the safety hazard while maintaining heating efficiency through thermal conduction or convection.
3Object-affected harmful factors
If heated bucket is used to heat fluid, then safety is improved by separating heating element from fluid, but temperature control precision deteriorates
Solution Approach 1:
The system incorporates a temperature sensor that continuously monitors the fluid temperature and provides feedback to the microprocessor control unit. This enables precise temperature control by adjusting the heating element activation based on real-time temperature readings, maintaining accurate temperature regulation while keeping the heating element separated from the fluid for safety.
4Device complexity
If conventional heating system is used, then device complexity is reduced, but energy efficiency deteriorates due to continuous heating operation
Solution Approach 1:
The microprocessor-controlled system operates the heating element in periodic cycles rather than continuously. The control unit monitors temperature and activates the heating element only when the temperature drops below the set point, creating an on-off cycling pattern that reduces energy consumption while maintaining temperature control, eliminating the need for continuous heating operation.
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 provides precise temperature control, reducing energy consumption by maintaining the desired temperature range efficiently and ensuring safety by isolating electrical components from the fluid, thus overcoming the limitations of traditional heating systems.
Implementation Method 1
a heating element, such as a conductive heating rod or coil
Implementation Method 2
The fluid temperature sensor(s) are in electrical communication with the processing unit, and are configured to detect a temperature of one or both of the fluid receptacle and/or fluid retained within the fluid receptacle
Data Source
AI summary
A fluid heating system configured to regulate a temperature of a fluid within a fluid receptacle having a fluid reservoir includes a processing unit, at least one fluid temperature sensor in electrical communication with the processing unit, and a heating element in electrical communication with the processing unit. The at least one fluid temperature sensor is configured to detect a temperature of one or both of the fluid receptacle and/or fluid retained within the fluid receptacle. The processing unit selectively activates and deactivates the heating element to regulate the temperature of the fluid within the fluid receptacle.