Circulation pump assembly for a heating and/or cooling system
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Solution Overview
Problem
Current heating and/or cooling systems require complex configurations with multiple components for temperature mixing, leading to increased complexity and component count.
Innovation Solution
A circulation pump assembly with an integrated mixing device, featuring a single-piece plastic pump housing, a wet-running electric drive motor, and a regulating valve to control the mixing ratio of fluid flows, allowing for simplified construction and integration with other system components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate mixing device is used in heating and/or cooling systems, then temperature mixing function is achieved, but system complexity and component count increase
Solution Approach 1:
The patent combines the mixing device with the circulation pump into a single integrated unit. The pump housing incorporates a mixing chamber with inlet connections for both fresh medium and return medium, allowing temperature mixing to occur within the pump assembly itself. This eliminates the need for a separate mixing device downstream, thereby reducing system complexity while maintaining the temperature mixing function.
2Ease of operation
If multiple components are used for circulation and mixing, then functional requirements are met, but assembly and installation become more complex
Solution Approach 1:
The circulation pump and mixing device are merged into a single integrated assembly where the pump housing serves dual purposes: housing the impeller for circulation and providing a mixing chamber for temperature blending. The return line connects directly to the pump housing, enabling mixing to occur at the pump inlet rather than requiring separate mixing components downstream.
Solution Approach 2:
The pump housing is designed with multi-functionality, serving both as the structural housing for the circulation pump and as the mixing chamber for temperature blending. The housing incorporates multiple inlet connections (fresh medium inlet and return medium inlet) and integrates the impeller drive mechanism, allowing a single component to perform multiple functions that traditionally required separate devices.
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 solution reduces the number of necessary components, achieves a compact construction, and simplifies the assembly of heating and/or cooling systems by integrating the mixing device within the pump assembly, enabling efficient temperature control and fluid mixing.
Implementation Method 1
at least one impeller rotatingly driven by the drive motor is situated in the pump housing
Implementation Method 2
two fluid flows, specifically from the first and the second inlet, can be mixed at the mixing point
Data Source
AI summary
A circulation pump assembly for a heating and/or cooling system includes an electric drive motor (108) and a connected pump housing (106) in which at least one impeller (118) is situated and which comprises a first inlet (112) and a first outlet (114). The pump housing (106) includes a second inlet (122) which is connected in an inside of the pump housing (106) at a mixing point (130) to the first inlet (112). A regulating valve (134), which is designed for regulating the mixing ratio of two flows mixing at the mixing point (130), as well as a control device, which controls the regulating valve (134) for regulating the mixing ration, are arranged in the pump housing (106). A hydraulic manifold is provided with such a circulation pump assembly.