Heated Fluid Dispenser Layout for Stable Pressure and Temperature Control
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Solution Overview
Problem
Existing systems for heating fluids face inefficiencies due to pressure differences and reliance on flow resistance, particularly when cold fluid is introduced directly into the suction conduit of the heating device, leading to suboptimal temperature control and potential contamination issues.
Innovation Solution
The solution involves positioning the outlet of the cold fluid feed and the inlet of the suction conduit in close proximity, allowing cold fluid to enter the heat exchanger directly, with temperature detection upstream of the heat exchanger to initiate heating, and using a control system to manage the heat source and pump operation based on temperature gradients, ensuring efficient heating and safety against contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If cold fluid is introduced directly into the suction conduit of the heating device, then the heat exchanger efficiency is improved, but pressure differences and flow resistance problems occur
Solution Approach 1:
A T-piece is introduced as an intermediary component connecting the cold fluid feed to the suction conduit. This mediator allows cold fluid to enter the suction flow without creating direct pressure conflicts, enabling the heat exchanger to efficiently heat cold fluid while maintaining stable water pressure in the supply tank through the T-piece's flow distribution capability.
2Measurement precision
If temperature measurement is performed inside the supply, then temperature control is achieved, but the system becomes dependent on flow resistance and pressure differences
Solution Approach 1:
The temperature measurement function is extracted from the supply tank interior and relocated to the suction conduit via a T-piece connection. This extraction allows temperature detection of cold fluid before it enters the heat exchanger without requiring direct access to the supply tank, thereby achieving accurate temperature control while eliminating dependency on flow resistance and pressure differences within the tank.
3Loss of time
If the feed outlet and suction inlet are positioned close together, then cold fluid can be detected early and heating can start promptly, but the risk of contamination and overheating increases
Solution Approach 1:
A feedback control system is implemented where a temperature sensor in the suction conduit continuously monitors cold fluid temperature and signals the controller. The controller adjusts the heating element power based on this feedback, enabling rapid heating response when cold fluid is detected while simultaneously preventing overheating and contamination through automated temperature regulation and safety cutoff mechanisms.
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 enhances the efficiency of the heat exchanger, reduces pressure-related issues, and provides improved temperature detection and control, ensuring effective heating while preventing overheating due to contamination, such as limescale buildup.
Implementation Method 1
a heat exchanger with heat source arranged downstream of the suction conduit
Implementation Method 2
a suction conduit provided with a pump means
Implementation Method 3
at least one temperature detecting means for measuring the temperature of the fluid
Data Source
AI summary
The invention relates to a device and method for dispensing a heated fluid and an external heating device. The device comprises a supply of fluid, a discharge connected to the supply for drawing off heated fluid, a feed for cold fluid connected to the supply, and the heating device. The heating device for heating fluid comprises a suction conduit connected to the supply and provided with a pump means, a heat exchanger with heat source arranged downstream of the suction conduit, a pressure conduit for heated fluid debouching in the supply, at least one temperature detecting means for measuring the temperature of fluid, and a control coupled to the temperature detecting means for controlling the pump means and/or heat source. The invention is characterized in that an outlet of the feed and an inlet of the suction conduit are arranged in the vicinity of each other in the supply. The invention is also characterized in that the temperature detecting means is coupled upstream of the heat exchanger to the suction conduit.