Hydraulic component for a heating or air-conditioning system
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Solution Overview
Problem
Existing heating and air conditioning systems lack the ability to efficiently adjust the temperature of the heating or cooling medium and cannot supply multiple heating circuits with different temperature levels simultaneously.
Innovation Solution
A hydraulic unit with a circulating pump, multiple flow connections, and a mixing valve that allows for the adjustment of temperature by mixing heated and cooled liquids, enabling the supply of at least two heating circuits with different temperature levels by connecting the mixing valve to both the heat source and return connections, and arranging it in the flow path to vary the mixing ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a mixing valve with external circulation pump is used to supply different temperature levels, then temperature control capability is improved, but device complexity increases
Solution Approach 1:
The patent combines the circulation pump and mixing valve into a single integrated hydraulic unit. The pump housing contains the mixing valve, and the pump's outlet is connected to the mixing valve's inlet, allowing both functions to be performed by one compact device rather than requiring separate external components.
Solution Approach 2:
The hydraulic unit performs multiple functions within a single device: it circulates heating medium through the pump, mixes hot and cold water through the integrated mixing valve, and can switch between different operating modes using the diverter valve. This multi-functionality eliminates the need for separate external mixing valves and circulation pumps.
2Ease of operation
If a diverter valve is used to switch circulation between heat exchanger and heating circuit, then ease of operation is improved, but temperature control precision deteriorates
Solution Approach 1:
The patent uses a diverter valve with three positions (first, second, and intermediate) that allows dynamic switching between different operating modes. The intermediate position enables partial flow through both the heat exchanger and heating circuit simultaneously, providing more flexible and precise temperature control compared to simple on/off switching.
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 the ability to supply multiple heating circuits with different temperature levels, improving the flexibility and efficiency of heating and air conditioning systems.
Implementation Method 1
a mixing valve that allows for the adjustment of temperature by mixing heated and cooled liquids
Implementation Method 2
at least one circulation pump unit, which serves to circulate a liquid heat transfer medium, acting as a heating or cooling medium, through the heating or air conditioning system
Implementation Method 3
a heat source, through which the heating medium is heated in the circuit
Data Source
Figure 1
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AI summary
The invention relates to a hydraulic unit for a heating or air conditioning system, having at least one return connection (20) for a heating circuit (6), a first flow connection (16) for a heating circuit (6), a heat source outlet ( 12), a heat source inlet (14) that is fluidly connected to the first flow connection (16) and a flow path between the return connection (20) and the heat source outlet (12) or in a flow path between the heat source inlet (14) and the first flow connection (16 ) arranged circulating pump unit (28) with at least one second flow connection (18), which is fluidically connected to the heat source inlet (14) and the return flow connection (20), wherein in a flow path from the heat source inlet (14) to the second flow connection (18) and / or at least one in a flow path from the return port (20) to the second flow port (18). Mixing valve (54) is arranged.