There are multiple differences between the coupling tank and the mixing system in underfloor heating, as detailed below:
Definition and Aliases
Coupling tank: Also known as a mixing tank, hydraulic balancer, pressure tank, or decoupling tank, it essentially functions as a dynamic tank and plays a crucial role in independent heating systems.
Mixing system: Also known as the mixing center or centralized heating mixer, it is a system that adds components such as three-way valves to control the temperature of the underfloor heating water supply while fulfilling the basic function of mixing supply and return water.
Applicable Scenarios
Coupling tank: Primarily used in independent heating systems such as gas wall-hung boilers. In independent heating scenarios, wall-hung boilers serve as the heat source, characterized by small flow rates and large temperature differences, while underfloor heating requires a mode of operation with small temperature differences and large flow rates. The coupling tank effectively addresses this mismatch.
Mixing water system: Primarily used in underfloor heating systems where centralized heating serves as the heat source. The supply parameters of centralized heating are relatively fixed and uncontrollable, while the mixing water system can regulate them to meet the requirements of the underfloor heating system.
Purpose of the Work
Coupling tank:
On one hand, mixing high-temperature water supply with low-temperature water supply creates relatively mild water, but this is not its primary purpose.
More importantly, in a dynamic tank, the water flow rate is substantial, enabling the primary side (boiler side) and secondary side (floor heating side) flows to operate independently without interference. On this basis, the flow rate can be increased to address the limitations of the wall-hung boiler when facing floor heating systems with small temperature differences and high flow rates.
Mixing water system: The primary objective is to transform uncontrollable centralized heating into a temperature-regulatable heating system. By utilizing components such as three-way valves, the system controls the water temperature for underfloor heating, preventing overheating of the heating system and avoiding damage to underfloor heating pipes due to high temperatures.
structural composition
Coupling tank: primarily a tank structure, designed with internal special configurations to achieve independent operation and mixing of primary and secondary water flows.
Mixing water system: Based on the fundamental structure of water supply and return mixing, control components such as three-way valves are added. These components work in synergy to achieve precise control of the underfloor heating water supply temperature.