Water mixing device for floor heating installation

Abstract

The utility model relates to the technical field of floor heating, in particular to a water mixing device for floor heating installation, which comprises two groups of connecting pipes connected inside an installation shell and two groups of communicating pipes connected with the middle parts and the side parts of the two groups of connecting pipes, and a water mixing mechanism for controlling water temperature is arranged on the two groups of connecting pipes. Through the arrangement of the water mixing mechanism, the system can adapt to a radiant heating mode and a radiant cooling mode at the same time, flexible switching of seasonal working conditions is achieved through switching of valves, it is ensured that the water supply temperature is always higher than the dew point temperature during cooling in summer through real-time monitoring of the dew point temperature and accurate adjustment of analog quantity valves, and the problem of ground plate dew formation is solved; by arranging the water mixing mechanism and adopting double-valve cooperative control and multi-point temperature monitoring, accurate adjustment of the water supply temperature of + / -1 DEG C of the water segregator is achieved, the energy efficiency of the system is improved, energy consumption is reduced, the internal circulation mode is automatically switched after the set temperature is reached in winter, the starting and stopping frequency of a main machine is reduced, the service life of equipment is prolonged, and energy is further saved.

Description

Technical Field

[0001] This utility model relates to the field of underfloor heating technology, and in particular to a mixing device for underfloor heating installation. Background Technology

[0002] In existing underfloor heating systems, the main function of the mixing center is to mix the high-temperature heating supply water with the underfloor heating return water to a suitable temperature, and then deliver it to the manifold via a booster pump to achieve heat dissipation and heating.

[0003] Traditional mixing centers have significant drawbacks: their water pumps are typically placed on the supply side of the manifold. When the system is used for both radiant heating and radiant cooling, the water temperature after mixing during the summer cooling process cannot be effectively controlled, easily leading to condensation on the floor and affecting safety and comfort. Therefore, we provide a mixing device for underfloor heating installation. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a mixing device for underfloor heating installation. It solves the technical problem that when existing mixing centers are used for radiant cooling, the water temperature going to the manifold cannot be controlled in summer, which easily causes condensation on the floor. It achieves the goal of being suitable for both radiant heating and cooling, accurately controlling the water supply temperature of the manifold, preventing condensation on the floor, and being highly efficient and energy-saving.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a mixing device for underfloor heating installation, comprising two sets of connecting pipes connected inside the installation shell and two sets of connecting pipes connected to the middle and side parts of the two sets of connecting pipes, wherein the two sets of connecting pipes are provided with a mixing mechanism for controlling water temperature.

[0006] The mixing mechanism includes a main unit water supply connector and a distributor connector connected to both ends of a set of connecting pipes. A switchable electric two-way valve and a temperature monitor are sequentially installed on one set of connecting pipes. The two ends of another set of connecting pipes are connected to a main unit return water connector and a water collector connector. A proportional regulating electric two-way valve and a water pump are sequentially installed on another set of connecting pipes. The proportional regulating electric two-way valve and the switchable electric two-way valve are distributed in parallel. The water pump is connected in series with the proportional regulating electric two-way valve. A mixing temperature monitoring device is installed on the connecting pipe in the middle.

[0007] Preferably, the connecting pipe is further provided with a dew point temperature monitoring module, and the dew point temperature monitoring module is connected to the temperature monitor signal.

[0008] Preferably, the main unit water supply connector is connected to the water distributor connector via a proportional regulating electric two-way valve, and the main unit return water connector is connected to the water collector connector via a switch-type electric two-way valve.

[0009] Preferably, the water pump is located on the return water side of the water collector connector, and the water pump is a bidirectional control pump.

[0010] Preferably, the proportional regulating electric two-way valve and the on / off electric two-way valve are interlocked through an external control module, and the water pump inlet universal tee fitting is connected to the distributor connector and the main unit return water connector respectively.

[0011] Preferably, the mixing temperature monitoring device is installed on the outlet pipe of the distributor connector, and the proportional regulating electric two-way valve and the on / off electric two-way valve form a linkage control.

[0012] By employing the above technical solution, this utility model provides a mixing device for underfloor heating installation, which has at least the following beneficial effects:

[0013] 1. This utility model, by setting up a mixing mechanism, can simultaneously adapt to both radiant heating and radiant cooling modes. It achieves flexible switching of seasonal operating conditions through valve switching, and ensures that the water supply temperature is always higher than the dew point temperature during summer cooling by real-time monitoring of dew point temperature and precise adjustment of analog valves, thus solving the problem of floor condensation.

[0014] 2. This utility model achieves precise adjustment of the water supply temperature of the distributor within ±1℃ by setting a mixing mechanism, adopting dual valve coordinated control and multi-point temperature monitoring, improving system energy efficiency, reducing energy consumption, and automatically switching to internal circulation mode after reaching the set temperature in winter, reducing the frequency of start-up and shutdown of the main unit, extending equipment life and further saving energy. Attached Figure Description

[0015] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the oblique structure of this utility model;

[0020] Figure 4 This is a top view schematic diagram of the structure of this utility model.

[0021] In the diagram: 1. Mounting housing; 3. Connecting pipe; 4. Connecting pipe;

[0022] 2. Mixing mechanism; 21. Main unit water supply connector; 22. Main unit return water connector; 23. Water distributor connector; 24. Water collector connector; 25. Proportional regulating electric two-way valve; 26. Switching electric two-way valve; 27. Water pump; 28. Temperature monitor; 29. ​​Mixing water temperature monitoring device. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] When existing mixing centers are used for radiant cooling, the water temperature heading to the manifold cannot be controlled in summer, easily causing condensation on the floor. This embodiment provides a mixing device for underfloor heating installation. Please refer to [link / reference]. Figure 1 - Figure 4 This system is suitable for both radiant heating and cooling, precisely controlling the water supply temperature of the manifold to prevent condensation on the floor, resulting in high efficiency and energy savings. The mixing device for underfloor heating installation includes two sets of connecting pipes 3 inside the mounting housing 1, and two sets of connecting pipes 4 connected to the middle and sides of the two sets of connecting pipes 3. Each connecting pipe 3 is equipped with a dew point temperature monitoring module, which can accurately monitor the dew point temperature in the environment in real time, providing the system with crucial environmental humidity data. The dew point temperature monitoring module is also connected to a temperature monitor 28. Through this signal connection, the system can precisely adjust the relevant valves in the mixing mechanism according to changes in the dew point temperature to ensure that the water supply temperature meets the requirements for preventing condensation, achieving precise control of the system. The two sets of connecting pipes 3 are equipped with a mixing mechanism 2 to control the water temperature. The mixing mechanism 2 ensures that the water supply temperature is always higher than the dew point temperature during summer cooling, solving the problem of floor condensation.

[0026] Traditional mixing centers have significant shortcomings: the water pump 27 is often located on the supply side of the manifold. When the system has both radiant heating and cooling functions, the mixing water temperature is difficult to control effectively during summer cooling, easily causing floor condensation and affecting safety and comfort. To solve these problems, the mixing mechanism 2 includes a main unit supply connector 21 and a manifold connector 23 connected to both ends of a set of connecting pipes 3. The main unit supply connector 21 is connected to the manifold connector 23 via a proportional regulating electric two-way valve 25. A switchable electric two-way valve 26 and a temperature monitor 28 are sequentially installed on one set of connecting pipes 3. The other set of connecting pipes 3 is connected to a main unit return connector 22 and a collector connector 24. The main unit return connector 22 is connected to the collector connector 24 via the switchable electric two-way valve 26. Heating is achieved through the valve combination. The rapid switching of cooling supply adapts to all seasons and reduces the need for main unit start-ups and shutdowns, optimizing flow distribution, reducing energy consumption, and extending equipment lifespan. On another set of connecting pipes 3, a proportional regulating electric two-way valve 25 and a water pump 27 are installed sequentially. The proportional regulating electric two-way valve 25 and the on / off electric two-way valve 26 are connected in parallel and interlocked through an external control module. This allows for coordinated adjustment of water flow ratio and on / off states, precisely controlling water temperature. The two-way valve 25 and the on / off electric two-way valve 26 form a linkage control, which can dynamically adjust the opening and on / off state according to temperature data, accurately control the mixing ratio, ensure that the water supply temperature is stable at ±1℃, avoid condensation and improve energy efficiency, and also support water flow coordination control during mode switching. The water pump 27 is connected in series with the proportional regulating electric two-way valve 25. The water pump 27 is set on the return water side of the water collector connector 24, which can draw return water to drive circulation, avoid the risk of high temperature water leakage caused by pressurization on the water supply side, and the water pump 27 is a bidirectional control pump, which can be used in winter and summer modes. The system allows for flexible switching of water flow direction to adapt to heating and cooling circulation needs, improving system adaptability and stability. The inlet tee of pump 27 connects to the distributor connector 23 and the main unit return water connector 22, facilitating switching of circulation paths between winter and summer modes. This enables external circulation for heating / cooling or internal circulation for energy saving, enhancing system flexibility and efficiency. A mixing temperature monitoring device 29 is installed on the connecting pipe 4 in the middle section, monitoring the outlet water temperature of distributor connector 23 in real time and providing data for valve adjustment. During summer cooling, a dew point sensor detects indoor temperature and humidity and calculates the dew point temperature. The control board sets the target supply water temperature to the dew point temperature + 1°C. 7°C cold water supplied by the main unit enters the mixing chamber through the fully open on / off electric two-way valve 26, mixing with the return water regulated by the proportional electric two-way valve 25. Temperature monitor 28 provides real-time feedback on water supply temperature. The control board adjusts the opening of electric two-way valve 25 according to the deviation signal to form a closed-loop control, ensuring that the water supply temperature is stable at the target value. During winter heating, the main unit supplies high-temperature water through the on / off electric two-way valve 26 into the mixing chamber, where it mixes with the return water to the target temperature (≤40℃).Once the temperature reaches the target and stabilizes for 10 minutes, close the two-way valve, and the system switches to internal circulation mode (the distributor and collector are directly connected). When the temperature drops below the target value by 2°C, reopen the valve and start mixing by adjusting the minimum opening of the electric two-way valve 25 proportionally to gradually adjust to the target temperature, achieving energy-saving operation and preventing floor frost.

[0027] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixing device for underfloor heating installation, comprising two sets of connecting pipes (3) connected inside an installation housing (1) and two sets of connecting pipes (4) connected to the middle and side portions of the two sets of connecting pipes (3), characterized in that: The two sets of connecting pipes (3) are equipped with a water mixing mechanism (2) for controlling water temperature; The mixing mechanism (2) includes a main unit water supply connector (21) and a water distributor connector (23) connected to both ends of a set of connecting pipes (3). A switch-type electric two-way valve (26) and a temperature monitor (28) are installed sequentially on the set of connecting pipes (3). The two ends of another set of connecting pipes (3) are connected to a main unit return water connector (22) and a water collector connector (24). A proportional regulating electric two-way valve (25) and a water pump (27) are installed sequentially on the other set of connecting pipes (3). The proportional regulating electric two-way valve (25) and the switch-type electric two-way valve (26) are connected in parallel. The water pump (27) is connected in series with the proportional regulating electric two-way valve (25). A mixing temperature monitoring device (29) is installed on the connecting pipe (4) in the middle.

2. The mixing device for underfloor heating installation according to claim 1, characterized in that: The connecting pipe (3) is also equipped with a dew point temperature monitoring module, and the dew point temperature monitoring module is connected to the temperature monitor (28) via signal.

3. The mixing device for underfloor heating installation according to claim 1, characterized in that: The main unit water supply connector (21) is connected to the water distributor connector (23) via a proportional regulating electric two-way valve (25), and the main unit return water connector (22) is connected to the water collector connector (24) via a switch-type electric two-way valve (26).

4. A mixing device for underfloor heating installation according to claim 1, characterized in that: The water pump (27) is located on the return side of the water collector connector (24), and the water pump (27) is a bidirectional control pump.

5. A mixing device for underfloor heating installation according to claim 1, characterized in that: The proportional regulating electric two-way valve (25) and the switching electric two-way valve (26) are interlocked through an external control module. The inlet of the water pump (27) is connected to the distributor connector (23) and the main unit return water connector (22) respectively.

6. A mixing device for underfloor heating installation according to claim 1, characterized in that: The mixing temperature monitoring device (29) is installed on the outlet pipe of the water distributor connector (23), and the proportional regulating electric two-way valve (25) and the switch quantity electric two-way valve (26) form a linkage control.

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