Hydraulic Mixing Valve Unit for Multi-Circuit Temperature Control
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Solution Overview
Problem
Existing hydraulic construction units for heating and air-conditioning facilities face difficulties in temperature regulation, allowing only limited adjustment of the heating medium temperature, which is typically uniform across all circuits.
Innovation Solution
A hydraulic construction unit with a mixing valve system that allows for separate temperature adjustments in multiple heating circuits by mixing fluids from different sources, enabling different feed temperatures to be supplied to various circuits, such as radiators and floor heating systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single circulation pump assembly is used to deliver heating medium through all circuits, then the system structure is simple, but temperature regulation is difficult and all circuits receive the same heating medium temperature
Solution Approach 1:
The patent divides the single heating medium delivery system into multiple separate flow paths, each with its own temperature control capability. The circulation pump assembly is split into multiple pump assemblies (first circulation pump, second circulation pump) that can independently deliver heating medium to different circuits (first heating circuit, second heating circuit), allowing each circuit to have different temperature settings.
Solution Approach 2:
The patent introduces adjustable mixing valves (first mixing valve, second mixing valve) that can dynamically adjust the mixing ratio of heating medium from different sources (heat source, return connection) to achieve different feed temperatures. This dynamic adjustment capability allows temperature regulation adaptability without requiring complete system redesign.
2Adaptability or versatility
If the heating medium temperature is uniform across all circuits, then the system operation is simple, but it cannot meet different temperature requirements of different heating circuits
Solution Approach 1:
The patent implements local temperature control by providing each heating circuit with its own mixing valve (first mixing valve for first heating circuit, second mixing valve for second heating circuit) that can independently adjust the feed temperature. This allows each circuit to have customized temperature settings according to its specific requirements, while the overall system operation remains straightforward through modular valve control.
3Measurement precision
If multiple circulation pump assemblies are used with separate flow paths for different circuits, then temperature regulation is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple flow paths and pump assemblies into a single integrated construction unit housing. The first circulation pump assembly and second circulation pump assembly, along with their respective mixing valves and flow paths, are merged into one compact unit that can be installed as a single system, reducing installation complexity while maintaining precise temperature control capabilities.
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
Enables precise temperature control and adjustment of the heating medium, allowing for optimized temperature settings in different heating circuits, improving comfort and efficiency in heating and air-conditioning systems.
Implementation Method 1
a mixing valve is arranged in the flow path from the heat source inlet to the second feed connection and/or in the flow path from the return connection to the second feed connection
Implementation Method 2
connections for connection to a heat source, in particular to a primary heat exchanger of a boiler, via which the heating medium is heated in the circuit
Implementation Method 3
The pump assembly can thus deliver the heating medium, in particular water, either through the heat exchanger for heating service water or through a connected heating circuit
Data Source
AI summary
A hydraulic construction unit for a heating facility or air-conditioning facility, includes a return connection (20) and a first feed connection (16) for a heating circuit (6), with a heat source outlet (12) fluid conducting connected to the return connection. A heat source inlet (14) is fluid conducting connected to the first feed connection and to a circulation pump assembly (28) in a flow path between the return connection and the heat source outlet (12) or in a flow path between the heat source inlet and the first feed connection. A second feed connection (18) for a second heating circuit (8), is fluid conducting connected to the heat source inlet and to the return connection. A mixing valve (54) is arranged in a flow path from the heat source inlet to the second feed connection and/or in a flow path from the return connection to the second feed connection.