Deaerator Flow Diverter for Heat Transfer Fluid Degassing
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Solution Overview
Problem
Existing deaeration solutions for heating systems, such as those involving a 'jolly valve' in circulating pumps or separate deaerators, result in inefficiencies, increased complexity, and larger component sizes, leading to suboptimal performance and longer installation times.
Innovation Solution
A compact deaerator design with a flow diverter that subdivides the heat transfer fluid flow into primary and secondary streams, where the secondary stream is subjected to degassing in a dedicated chamber, enhancing air removal efficiency while maintaining a compact form factor, and can be easily installed on boilers or burners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a jolly valve is installed on the circulating pump to perform deaeration, then deaeration function is achieved, but the pump structure becomes more complex and its performance is reduced
Solution Approach 1:
The deaeration function is extracted from the circulating pump by providing a separate deaerator device with a diverter element. This separates the deaeration function from the pump's primary circulation function, eliminating the need to modify the pump structure with additional valves and channels.
Solution Approach 2:
The heat transfer fluid flow is segmented into a first flow and a second flow by the diverter element. The second flow is directed to the deaeration chamber for gas removal while the first flow continues through the heat exchanger, allowing simultaneous deaeration and heat exchange without interfering with either process.
2Reliability
If a separate deaerator is mounted along the fluid path, then deaeration efficiency is improved, but the system complexity and installation time increase
Solution Approach 1:
The deaerator is designed to be mounted directly on the heat exchanger, merging the deaeration function with the existing heat exchanger structure. This integration eliminates the need for separate deaerator installations and complex piping connections, reducing system complexity while maintaining deaeration efficiency.
Solution Approach 2:
The heat exchanger structure serves dual purposes: heat exchange and deaeration. By integrating the deaeration chamber and diverter element into the heat exchanger, the system achieves multi-functionality, eliminating the need for additional standalone deaeration equipment.
3Reliability
If the heat transfer fluid flow is fully processed through a large deaeration chamber, then complete degassing is achieved, but the device dimensions and volume increase
Solution Approach 1:
Instead of processing the entire heat transfer fluid flow through the deaeration chamber, only a portion (the second flow) is diverted for deaeration. This partial action approach achieves sufficient gas removal without requiring a large chamber capacity, maintaining compact dimensions while effectively removing gases that cause micro-boiling and overheating.
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 deaerator achieves efficient and continuous degasification with reduced overall dimensions, simplified installation, and improved system performance by processing a fraction of the fluid flow in a compact degassing chamber, effectively removing air from the heat transfer fluid, thereby preventing micro-boiling and overheating issues.
Implementation Method 1
it comprises at least one flow diverter (14) adapted to divide the flow (F) of the heat transfer fluid into two flows (Fp, Fs)
Implementation Method 2
inside which the secondary flow (Fs) passes, and adapted to slow down the speed of the secondary flow (Fs)
Data Source
AI summary
Deaerator (1) for the removal and evacuation of gases in heating systems or the like, comprising air expulsion means (2; 4), a container body (10) provided with a cavity (100) inside which a heat transfer fluid passes and circulates, the container body (10) comprising at least one degassing chamber (101), at least one inlet duct (11), wherethrough the heat transfer fluid enters, at least one outlet duct (12), wherethrough the heat transfer fluid exits, the inlet (11) and outlet (12) ducts being in fluid communication with the cavity (100),characterised in that:it comprises, inside the cavity (100), at least one flow diverter adapted to divide the flow (F) of the heat transfer fluid into a primary flow (Fp) and into a secondary flow (Fs);the flow diverter (14) being positioned in the cavity (100) so as to define, in cooperation with the walls of the cavity (100) and/or of the container body (10), at least the degassing chamber (101), inside which the secondary flow (Fs) passes, and at least one passage chamber (102), inside which the primary flow (Fp) passes, the degassing chamber (101) being dedicated to the interception and evacuation of the air, and the passage chamber (102) being dedicated to the passage of the flow of the heat transfer fluid not subject to degassing;the degassing chamber (101) being adapted to slow down the speed of the secondary flow (Fs), by an increase in the passage section, favouring the separation of air from the same flow (Fs).