Two-way water mixing device and heating system

Abstract

The utility model provides a two-way water mixing device and a heating system, and relates to the technical field of heating. The double-path water mixing device comprises a coupling tank, a first output pipeline, a second output pipeline and a bypass pipeline, the coupling tank is provided with a mixing cavity, a primary side water inlet, a primary side water outlet, a secondary side water outlet and a secondary side water inlet, and the primary side water inlet, the primary side water outlet, the secondary side water outlet and the secondary side water inlet are respectively communicated with the mixing cavity; an input port of the first output pipeline and an input port of the second output pipeline are both communicated with the secondary side water outlet; and the second output pipeline is also communicated with the secondary side water inlet through the bypass pipeline to form an external loop independent of the mixing cavity. The single heat source can be efficiently matched with the high-temperature heating tail end and the low-temperature heating tail end at the same time, the hydraulic distribution and temperature regulation and control precision is optimized, the system stability and energy efficiency are improved, and the installation and operation cost is reduced.

Description

Technical Field

[0001] This application relates to the field of heating technology, and in particular to a dual-circuit mixing device and heating system. Background Technology

[0002] Currently, common heating equipment on the market (such as gas-fired wall-hung boilers and air-source heat pumps) is typically designed for a single type of heating terminal (such as underfloor heating or radiators), making it difficult to simultaneously adapt to two heating terminal systems with different temperature requirements. For example, underfloor heating systems require low-temperature water supply (typically 40 to 50°C), while radiators require higher-temperature water supply (typically 60 to 75°C). Especially in modern residences, the demand for mixed installation of underfloor heating and radiators is increasing, further highlighting the limitations of traditional equipment. Utility Model Content

[0003] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a dual-circuit mixing device and heating system, which can simultaneously and efficiently adapt a single heat source to high and low temperature heating terminals, optimize hydraulic distribution and temperature control accuracy, improve system stability and energy efficiency, and reduce installation and operating costs.

[0004] This application provides the following technical solution:

[0005] In a first aspect, embodiments of this application provide a dual-channel mixing device, the dual-channel mixing device comprising:

[0006] A coupling tank having a mixing chamber, a primary side inlet, a primary side outlet, a secondary side outlet, and a secondary side inlet, wherein the primary side inlet, the primary side outlet, the secondary side outlet, and the secondary side inlet are respectively connected to the mixing chamber;

[0007] The first output pipeline and the second output pipeline are connected to the secondary side outlet.

[0008] The bypass pipeline and the second output pipeline are also connected to the secondary side inlet through the bypass pipeline, forming an external closed loop independent of the mixing chamber.

[0009] In some embodiments of the first aspect, the dual-channel mixing device further includes:

[0010] An adjusting element is connected to the bypass pipeline, and the adjusting element is capable of adjusting the flow cross-sectional area of ​​the bypass pipeline.

[0011] In some embodiments of the first aspect, the regulating element is configured as a three-way regulating valve having a pair of inlets and an outlet;

[0012] One of the inlets is connected to the output port of the second output pipeline, and the other inlet is connected to the secondary side inlet through a bypass pipeline.

[0013] In some embodiments of the first aspect, the dual-channel mixing device further includes:

[0014] A first extraction component is connected to the coupling tank and is used to drive the heating water in the mixing chamber to flow to the first output pipe and the second output pipe.

[0015] In some embodiments of the first aspect, the dual-channel mixing device further includes:

[0016] An integrated upper bar has an exhaust port, an upper bar water inlet, a first upper bar water outlet, and a second upper bar water outlet. The upper bar water inlet, the first upper bar water outlet, the second upper bar water outlet, and the exhaust port are interconnected. The secondary side water outlets are respectively connected to the upper bar water inlet. The first upper bar water outlet is connected to the input port of the first output pipeline, and the second upper bar water outlet is connected to the input port of the second output pipeline.

[0017] An exhaust component is provided at the exhaust port, and the exhaust component is used to control the gas emission from the exhaust port.

[0018] In some embodiments of the first aspect, the regulating element is configured as a three-way regulating valve having a pair of inlets and an outlet; one of the inlets of the three-way regulating valve is connected to the second upper bar outlet, the other inlet of the three-way regulating valve is connected to the secondary side inlet via a bypass pipe, and the outlet is connected to the input port of the second output pipe;

[0019] The dual-path mixing device also includes a second pumping component, which is connected to the second output pipeline. The second pumping component can drive heating water to flow into the second output pipeline.

[0020] In some embodiments of the first aspect, the integrated upper bar further includes an upper bar cavity, wherein the first upper bar outlet, the second upper bar outlet, and the upper bar inlet are respectively connected to the upper bar cavity, the top of the upper bar cavity defines a gas storage section capable of storing gas, the exhaust port is located at the top of the gas storage section, and the exhaust port is connected to the gas storage section.

[0021] In some embodiments of the first aspect, the first upper bar outlet, the second upper bar outlet, and the upper bar inlet are respectively connected to the bottom of the upper bar cavity.

[0022] In some embodiments of the first aspect, the number of secondary side inlets is a pair, wherein one of the secondary side inlets is a first secondary side inlet and the other of the secondary side inlets is a second secondary side inlet;

[0023] The secondary side first water inlet is close to the primary side water inlet, and the secondary side second water inlet is far from the primary side water inlet. The secondary side second water inlet is connected to the second output pipeline through the bypass pipeline.

[0024] Secondly, this application also provides a heating system, the heating system comprising:

[0025] The dual-channel mixing device as described in any of the above embodiments;

[0026] The wall-hung boiler provides a heat source, wherein the water supply port of the wall-hung boiler is connected to the primary side water inlet, and the water return port of the wall-hung boiler is connected to the primary side water outlet.

[0027] The radiator has its inlet pipe connected to the outlet of the first output pipe and its outlet pipe connected to the secondary inlet.

[0028] A hot water pipe network, wherein the inlet of the hot water pipe network is connected to the outlet of the second output pipe, and the return outlet of the hot water pipe network is connected to the secondary side inlet.

[0029] The embodiments of this application have the following advantages:

[0030] This application provides a dual-path mixing device. The first output pipe directly draws high-temperature water (e.g., 60 to 75°C) from the upper layer of the mixing chamber and supplies it to the radiators. The water then returns through the secondary inlet to meet the high-temperature heating requirements of the heating terminals. The second output pipe draws high-temperature water from the upper layer of the mixing chamber and forms an external loop with the secondary inlet through a bypass pipe. This allows at least a portion of the return water from the secondary inlet to directly enter the second output pipe to supply the underfloor heating system. By adjusting the flow rate ratio of the bypass pipe (e.g., using a three-way valve or a proportional valve), the supply water temperature of the second output pipe (e.g., 40 to 50°C) can be dynamically controlled to meet the low-temperature requirements of the underfloor heating system.

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This illustration shows a schematic diagram of the structure of a dual-channel mixing device provided in an embodiment of this application.

[0034] Explanation of key component symbols:

[0035] 100-Coupled tank; 110-Primary side inlet; 120-Primary side outlet; 130-Secondary side first inlet; 140-Secondary side second inlet; 150-Secondary side outlet; 160-First exhaust component; 170-Integrated upper bar; 171-First upper bar outlet; 172-Second upper bar outlet; 180-Exhaust component; 190-Adjusting component; 200-Second exhaust component; 210-Bypass pipeline. Detailed Implementation

[0036] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0037] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the template description is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0041] In related technologies, common heating equipment on the market (such as gas-fired wall-hung boilers and air-source heat pumps) is usually designed for a single type of heating terminal (such as underfloor heating or radiators), making it difficult to simultaneously adapt to two heating terminal systems with different temperature requirements. For example, underfloor heating systems require low-temperature water supply (typically 40 to 50°C), while radiators require higher-temperature water supply (typically 60 to 75°C). Especially in modern residences, the demand for mixed installation of underfloor heating and radiators is increasing, further highlighting the limitations of traditional equipment.

[0042] As shown in Figure 1, in order to solve the above-mentioned technical problems, this application provides a dual-path mixing device. The dual-path mixing device includes a coupling tank 100, a first output pipeline, a second output pipeline, and a bypass pipeline 210. The coupling tank 100 has a mixing chamber, a primary side inlet 110, a primary side outlet 120, a secondary side outlet 150, and a secondary side inlet. The primary side inlet 110, the primary side outlet 120, the secondary side outlet 150, and the secondary side inlet are respectively connected to the mixing chamber. The inlet of the first output pipeline and the inlet of the second output pipeline are both connected to the secondary side outlet 150. The second output pipeline is also connected to the secondary side inlet through the bypass pipeline 210, forming an external loop independent of the mixing chamber.

[0043] The dual-circuit mixing device and heating system provided in this application embodiment achieve the requirement of a single heat source simultaneously adapting to high and low temperature heating terminals through the coordinated design of the mixing chamber of the coupling tank 100 and the external closed loop.

[0044] High-temperature hot water from a heat source (such as a gas-fired wall-hung boiler or an air-source heat pump) enters the mixing chamber of the coupling tank 100 through the primary-side inlet 110, where it mixes with low-temperature water returning from the secondary-side inlet, creating a temperature gradient distribution. The mixing chamber uses natural hydraulic stratification or forced disturbance (such as a built-in flow guiding structure) to partially mix the high-temperature water (primary side) and the low-temperature return water (secondary side) within the chamber, preventing short-circuit flow and ensuring temperature stability.

[0045] The first output pipeline directly draws high-temperature water (e.g., 60 to 75°C) from the upper layer of the mixing chamber and supplies it to the radiator. The water then flows back through the secondary side inlet to meet the needs of high-temperature heating terminals.

[0046] The second output pipe draws higher-temperature water from the upper layer of the mixing chamber and forms an external loop with the secondary side inlet through the bypass pipe 210. This allows at least a portion of the return water from the secondary side inlet to directly enter the second output pipe to supply the underfloor heating system. By adjusting the flow rate ratio of the bypass pipe 210 (e.g., using a three-way valve or proportional valve), the supply water temperature of the second output pipe (e.g., 40 to 50°C) can be dynamically controlled to meet the low-temperature requirements of the underfloor heating system.

[0047] For example, the inlet of the second output pipe is connected to both the secondary side outlet 150 and the secondary side inlet, and the secondary side outlet 150 and the secondary side inlet are connected in parallel. That is, the inlet of the second output pipe and the secondary side outlet 150 are directly connected, and the portion of the inlet of the second output pipe located outside the coupling tank 100 is connected to the portion of the secondary side inlet located outside the coupling tank 100 through the bypass pipe 210.

[0048] Furthermore, the closed loop formed by the bypass pipe 210 is independent of the mixing chamber, reducing hydraulic interference between systems, ensuring accurate flow distribution at high and low temperature terminals, and avoiding overheating or underheating.

[0049] Therefore, this application breaks through the limitation of traditional equipment that is only compatible with a single terminal type. Through dual-output and bypass regulation, it achieves simultaneous and efficient heating of underfloor heating (low temperature) and radiators (high temperature), meeting the mixed installation needs of modern residences. The coupling tank 100 mixing chamber, combined with the bypass closed-loop design, can independently adjust the water temperature of the two outputs, with high temperature difference control accuracy, avoiding the adjustment lag problem of traditional mixing valves.

[0050] In some embodiments, the dual-path mixing device further includes an adjusting element 190, which is connected to a bypass pipe 210 and can adjust the flow cross-sectional area of ​​the bypass pipe 210.

[0051] In these embodiments, to more precisely control the temperature output of the dual-channel mixing device, the device also includes an adjusting element 190 connected to the bypass pipe 210. The adjusting element 190 allows for dynamic adjustment of the flow cross-sectional area of ​​the bypass pipe 210, thereby changing the flow rate and velocity of the water flowing through the bypass pipe 210. This allows users or automatic control systems to flexibly adjust the hot water temperature supplied to different heating terminals (such as underfloor heating or radiators) according to actual needs.

[0052] Specifically, adjusting the flow cross-sectional area of ​​the bypass pipe 210 directly affects the return water volume entering the second output pipe, which is crucial for regulating the supply water temperature to the underfloor heating system. For example, when it is necessary to lower the water temperature supplied to the underfloor heating system, the mixing ratio of high-temperature water can be reduced by increasing the flow cross-sectional area of ​​the bypass pipe 210, and vice versa. This regulating element 190 is typically implemented using a three-way valve, a proportional valve, or other types of flow control valves.

[0053] In some embodiments, the regulating element 190 is configured as a three-way regulating valve having a pair of inlets and an outlet; wherein one inlet is connected to the outlet of the second output pipeline, and the other inlet is connected to the secondary side inlet through the bypass pipeline 210.

[0054] In these embodiments, the regulating element 190 is a three-way regulating valve, a common flow control device capable of precisely adjusting the direction and proportion of water flow. The unique structure of the three-way regulating valve further optimizes the performance of the dual-path mixing device. The first inlet is connected to the output port of the second output pipe and is used to receive higher-temperature water (e.g., 60 to 75°C) drawn from the mixing chamber of the coupling tank 100. The second inlet is connected to the secondary side inlet via a bypass pipe 210 and is used to receive low-temperature water (or part of the low-temperature return water) flowing back from the underfloor heating system. The outlet delivers the regulated mixed water to the underfloor heating system.

[0055] For example, the three-way regulating valve can be an electric three-way regulating valve, a pneumatic three-way regulating valve, a manual three-way regulating valve, a ball three-way regulating valve, or a butterfly three-way regulating valve, etc.

[0056] The three-way regulating valve dynamically controls the ratio of water flow into and out of the system by adjusting the opening ratio of its two inlets, thus adjusting the water temperature input to the underfloor heating system. The specific process is as follows:

[0057] When it is necessary to increase the water temperature supplied to the underfloor heating system, the three-way regulating valve will increase the opening of the first inlet (high-temperature water) while decreasing the opening of the second inlet (low-temperature return water), allowing more high-temperature water to enter the mixture, thereby increasing the water supply temperature.

[0058] When it is necessary to lower the water temperature supplied to the underfloor heating system, the three-way regulating valve will reduce the opening of the first inlet while increasing the opening of the second inlet, allowing more low-temperature return water to participate in the mixing, thereby lowering the supply water temperature.

[0059] Therefore, the three-way regulating valve can flexibly adjust the ratio of high-temperature water to low-temperature return water according to actual needs, thereby achieving precise control of the underfloor heating water supply temperature (e.g., 40 to 50°C) to meet the needs of low-temperature heating terminals. The three-way regulating valve supports real-time adjustment and can quickly respond to ambient temperature, user settings, or system feedback signals to ensure that the water supply temperature of the underfloor heating system is always kept within the ideal range.

[0060] For example, the combined installation of radiators and underfloor heating is becoming increasingly common. The design of the three-way regulating valve allows the dual-way mixing system to better adapt to this mixed demand: the high-temperature water (60 to 75°C) required by the radiators is directly supplied by the first output line, unaffected by the three-way regulating valve. The low-temperature water (40 to 50°C) required by the underfloor heating is achieved through dynamic adjustment by the three-way regulating valve, ensuring that the underfloor heating system does not overheat or waste energy due to excessively high water temperatures.

[0061] In some embodiments, the dual-path mixing device further includes a first pumping component 160, which is connected to the coupling tank 100. The first pumping component 160 is used to drive the heating water in the mixing chamber to flow to the first output pipeline and the second output pipeline.

[0062] In these embodiments, to more effectively facilitate the flow of heating water within the mixing chamber to the first output line (typically supplying high-temperature heating terminals such as radiators) and the second output line (typically supplying low-temperature heating terminals such as underfloor heating systems), the dual-path mixing device further includes a first exhaust component 160. This first exhaust component 160 is connected to the coupling tank 100 and is responsible for driving the water flow.

[0063] The primary function of the first exhaust component 160 is to provide power to the heating water in the mixing chamber, enabling it to flow smoothly to the first and second output pipes. This ensures that hot water can be distributed to different heating terminals as needed, maintaining the normal operation of the system.

[0064] The first pumping component 160 can be implemented using a pump or other type of fluid transport equipment. For example, the first pumping component 160 can be a centrifugal pump, diaphragm pump, pipeline pump, or variable frequency pump, etc. The working principle of the first pumping component 160 is to use mechanical force to increase the pressure or flow rate of the water, thereby overcoming pipeline resistance and enabling the water flow to be effectively distributed to each output pipeline.

[0065] Specifically, for radiator systems that require higher water supply temperatures, the first extraction component 160 helps to extract hot water at a higher temperature from the mixing chamber and pushes this hot water through the first output pipe to the radiator.

[0066] For underfloor heating systems that require lower water supply temperatures, the first extraction component 160 also participates in pushing hot water at the appropriate temperature to the second output pipe, and after being mixed in an appropriate proportion through the bypass pipe 210, it is supplied to the underfloor heating system.

[0067] It should be noted that the first extraction component 160 needs to be used in conjunction with a flow control valve, such as a three-way regulating valve, to ensure that each output pipeline receives the required accurate water volume and temperature.

[0068] Clearly, the proper selection and configuration of the first exhaust component 160 is crucial for improving the energy efficiency of the entire heating system. An efficient exhaust component not only reduces energy consumption but also ensures stable system operation, preventing problems such as localized overheating or uneven cooling caused by insufficient water flow.

[0069] In some embodiments, the dual-channel mixing device further includes an integrated upper lever 170 and an exhaust component 180. The integrated upper lever 170 has an exhaust port, an upper lever inlet, a first upper lever outlet 171, and a second upper lever outlet 172. The upper lever inlet, the first upper lever outlet 171, the second upper lever outlet 172, and the exhaust port are interconnected. The secondary side outlet 150 is connected to the upper lever inlet. The first upper lever outlet 171 is connected to the input port of the first output pipeline, and the second upper lever outlet 172 is connected to the input port of the second output pipeline. An exhaust component 180 is provided at the exhaust port to control the gas emission from the exhaust port.

[0070] In these embodiments, to further optimize the functionality and performance of the dual-channel mixing device, the device also includes an integrated upper lever 170 and an exhaust vent 180. This design helps improve system stability and safety while ensuring efficient operation.

[0071] The vent is used to expel air from the system, preventing air bubbles from affecting heating. The upper inlet is connected to the secondary outlet 150 of the coupling tank 100, receiving hot water from the mixing chamber. The first upper outlet 171 is connected to the inlet of the first output pipe, responsible for providing hot water at a suitable temperature to high-temperature heating terminals (such as radiators). The second upper outlet 172 is connected to the inlet of the second output pipe, responsible for providing hot water at a suitable temperature to low-temperature heating terminals (such as underfloor heating systems).

[0072] The exhaust port, the upper bar inlet, the first upper bar outlet 171, and the second upper bar outlet 172 are interconnected, so that the hot water entering through the upper bar inlet can be distributed to different output pipelines according to needs.

[0073] The exhaust component 180 is located at the exhaust port, and its main function is to control the gas discharged from the exhaust port. By effectively removing air from the system, it ensures smooth water flow, improves heat exchange efficiency, and thus maintains the system's optimal operating condition.

[0074] In other words, hot water flows out from the secondary side outlet 150 of the coupling tank 100 and enters the integrated upper bar 170 through the upper bar inlet. Depending on the actual needs, the hot water will be distributed to the first upper bar outlet 171 or the second upper bar outlet 172, flowing to the first output pipeline and the second output pipeline respectively.

[0075] During the water flow process, air accumulates inside the integrated upper bar 170. This air is discharged through the exhaust port, while the exhaust component 180 is responsible for regulating this process to ensure that there is no excess air remaining in the system.

[0076] For example, the exhaust component 180 can be an automatic exhaust valve, a manual exhaust valve, a combined exhaust valve, etc. Of course, it can also be a switch valve, etc. Even more so, the exhaust component 180 can also be a screw plug.

[0077] In some embodiments, the regulating element 190 is configured as a three-way regulating valve, which has a pair of inlets and an outlet; one inlet of the three-way regulating valve is connected to the second upper outlet 172, the other inlet of the three-way regulating valve is connected to the secondary side inlet through the bypass pipe 210, and the outlet is connected to the inlet of the second output pipe.

[0078] The dual-circuit mixing device also includes a second pumping component 200, which is connected to the second output pipeline. The second pumping component 200 can drive heating water to flow into the second output pipeline.

[0079] In some embodiments, in order to more accurately control the water flow distribution for different temperature requirements in the dual-flow mixing device and ensure the efficient operation of the heating system, the device employs a specially designed three-way regulating valve and a second extraction component 200.

[0080] The three-way control valve has a pair of inlets and one outlet. The specific connection method is as follows:

[0081] The first inlet is connected to the second outlet 172 of the integrated upper valve 170, and is used to receive higher-temperature hot water drawn from the mixing chamber of the coupling tank 100. The second inlet is connected to the secondary side inlet via a bypass pipe 210, and is used to receive low-temperature water returned from a low-temperature return system (such as underfloor heating). The outlet is directly connected to the inlet of the second output pipe, supplying the regulated mixed water to the low-temperature heating terminal (such as the underfloor heating system). The three-way regulating valve dynamically controls the water flow temperature entering and exiting the outlet by adjusting the opening ratio of the two inlets. For example, when it is necessary to increase the supply water temperature to the underfloor heating system, the opening of the first inlet (high-temperature water) can be increased while the opening of the second inlet (low-temperature return water) can be decreased; conversely, the supply water temperature can be decreased.

[0082] The dual-flow mixing device also includes a second extraction component 200, which is connected to the second output pipeline. The main function of the second extraction component 200 is to drive the heating water to flow into the second output pipeline, ensuring that the mixed hot water at the appropriate temperature can be smoothly delivered to the low-temperature heating terminal.

[0083] The second extraction component 200 is typically a pump or other type of fluid transport device that provides the necessary pressure and flow rate to overcome pipe resistance and ensure that hot water can flow effectively to low-temperature heating systems such as underfloor heating.

[0084] In some cases, the second exhaust component 200 can also adjust the flow rate according to actual needs to adapt to different heating load changes, further improving the system's flexibility and energy efficiency.

[0085] For example, the second pumping unit 200 can be a centrifugal pump, diaphragm pump, pipeline pump or variable frequency pump, etc.

[0086] In some embodiments, the integrated upper lever 170 also has an upper lever cavity, with the first upper lever outlet 171, the second upper lever outlet 172 and the upper lever inlet respectively connected to the upper lever cavity. The top of the upper lever cavity is defined to form a gas storage section, which can store gas. The exhaust port is located at the top of the gas storage section and is connected to the gas storage section.

[0087] In these embodiments, the integrated upper lever 170 is further optimized to improve the gas emission efficiency and operational stability of the system. Specifically, the integrated upper lever 170 includes not only an exhaust port, an upper lever inlet, a first upper lever outlet 171, and a second upper lever outlet 172, but also a specially designed upper lever cavity and a gas storage section located on its top.

[0088] The upper cylinder cavity is a core component inside the integrated upper cylinder 170. The first upper cylinder outlet 171, the second upper cylinder outlet 172, and the upper cylinder inlet are all connected to this cavity. In this way, the hot water flowing in from the secondary side outlet 150 of the coupling tank 100 can be initially mixed or distributed in the upper cylinder cavity, and then guided to different output pipelines as needed.

[0089] The air storage section, located at the top of the upper chamber, is specifically designed to collect and temporarily store air or gas accumulated within the system. This design helps prevent air from entering the subsequent heating system, avoids air bubbles affecting water flow, and ensures smooth water flow and efficient heat exchange.

[0090] The exhaust port is located at the top of the gas storage unit and is directly connected to it. This means that when the gas storage unit has collected enough air, it can be discharged out of the system through the exhaust port. To manage this process more effectively, an exhaust component 180 (such as an automatic exhaust valve) is usually installed at the exhaust port to control the gas discharge as needed.

[0091] Hot water flows out from the secondary outlet 150 of the coupling tank 100 and enters the upper chamber of the integrated upper chamber 170 through the upper inlet. During the hot water's entry into the upper chamber, air rises to the air storage section at the top of the chamber due to density differences. This space is designed to facilitate gas accumulation, allowing the gas to move naturally to the storage section and be temporarily stored there. As the gas accumulates in the storage section, it is released through the vent once a certain amount is reached. If an automatic vent valve 180 is used as the venting element, it will automatically sense pressure changes within the storage section and open the valve to release the gas as needed, then close it again to prevent excessive water loss.

[0092] The treated hot water (i.e., with most of the air removed) flows through the first upper outlet 171 and the second upper outlet 172 to the first output pipe and the second output pipe, respectively, to supply high-temperature heating terminals (such as radiators) and low-temperature heating terminals (such as underfloor heating systems).

[0093] Therefore, by effectively removing air from the system, problems caused by air bubbles obstructing water flow are reduced, improving the efficiency and stability of the entire heating system. Timely air removal not only avoids noise and vibration but also reduces potential corrosion risks, protects pipes and other components, and extends equipment lifespan.

[0094] In some embodiments, the first upper bar water outlet 171, the second upper bar water outlet 172, and the upper bar water inlet are respectively connected to the bottom of the upper bar cavity.

[0095] These embodiments help optimize the water flow path and more effectively separate air from the water flow, ensuring stable system operation. The upper lever inlet, the first upper lever outlet 171, and the second upper lever outlet 172 are all located at the bottom of the upper lever cavity, allowing the incoming water flow to enter the upper lever cavity directly from the bottom, reducing disturbance to the gas already accumulated in the top gas storage section, and helping the gas to remain more stably in the gas storage section.

[0096] Clearly, when water enters the upper cylinder cavity through the upper cylinder inlet, gravity causes the water to fill the bottom of the cavity, while the lighter air rises to the air storage section at the top. The treated water then flows out through the first upper cylinder outlet 171 and the second upper cylinder outlet 172, continuing to participate in the system circulation. As water continues to flow in and out, any entrained gas naturally rises to the air storage section at the top, preventing gas from mixing back into the main water flow. The accumulated gas can then be discharged from the system through the exhaust port connected to the air storage section.

[0097] In some embodiments, the number of secondary side inlets is a pair, one of which is the secondary side first inlet 130 and the other is the secondary side second inlet 140.

[0098] The secondary side first inlet 130 is close to the primary side inlet 110, and the secondary side second inlet 140 is far away from the primary side inlet 110. The secondary side second inlet 140 is connected to the second output pipeline through the bypass pipeline 210.

[0099] In these embodiments, the secondary side inlets of the coupling tank 100 are designed as a pair (i.e., two independent inlets), labeled as secondary side first inlet 130 and secondary side second inlet 140, respectively. This design further improves the mixing efficiency and temperature control capability of the system by optimizing the entry position of the return water.

[0100] The secondary side first inlet 130 is located near the primary side inlet 110. It is mainly used to receive low-temperature return water from high-temperature heating terminals (such as radiators). Because it is close to the primary side inlet 110, this return water can quickly mix with the high-temperature supply water to form a preliminary temperature gradient distribution, thereby improving the heat exchange efficiency in the mixing chamber.

[0101] The secondary side second inlet 140 is located away from the primary side inlet 110. It is mainly used to receive low-temperature return water from low-temperature heating terminals (such as underfloor heating systems). Because it is far from the primary side inlet 110, this part of the return water will be more likely to participate in the mixing of the low-temperature area at the bottom of the mixing chamber, reducing interference with the high-temperature water supply.

[0102] The secondary side second inlet 140 is connected to the second output pipe through the bypass pipe 210 to form an independent external loop, allowing some low-temperature return water to directly enter the second output pipe for supplying the underfloor heating system, thereby achieving more flexible low-temperature water supply regulation.

[0103] In other words, high-temperature hot water enters the mixing chamber of the coupling tank 100 from a heat source (such as a gas-fired wall-hung boiler or an air-source heat pump) through the primary side inlet 110. Low-temperature return water from high-temperature heating terminals (such as radiators) enters the mixing chamber through the secondary side first inlet 130, and mixes with the high-temperature supply water to form a high temperature gradient.

[0104] Low-temperature return water from the low-temperature heating terminal (such as the underfloor heating system) enters the mixing chamber through the secondary side second inlet 140, and forms an external loop with the second output pipe through the bypass pipe 210, directly participating in the regulation of low-temperature water supply.

[0105] Within the mixing chamber, the area near the primary side inlet 110 is primarily responsible for the initial mixing of high-temperature supply water and low-temperature return water. The area further away from the primary side inlet 110 is responsible for the further mixing and regulation of the low-temperature return water, ensuring the stability of the low-temperature supply water.

[0106] The first output pipe directly draws hot water at a higher temperature from the upper part of the mixing chamber and supplies it to high-temperature heating terminals (such as radiators).

[0107] The second output pipeline adjusts the return water ratio through the bypass pipeline 210 to dynamically control the water temperature supplied to low-temperature heating terminals (such as underfloor heating systems).

[0108] Clearly, by dividing the secondary inlet into two independent inlets, one near and one far from the primary inlet 110, temperature zoning management of different areas within the mixing chamber is achieved, improving heat exchange efficiency. The secondary second inlet 140 is connected to the second output pipe via a bypass pipe 210, allowing the low-temperature return water to directly participate in the regulation of the low-temperature water supply, thereby further improving the temperature control accuracy of the low-temperature water supply. Furthermore, the independent external loop reduces mutual interference between the high and low-temperature return water, ensuring the accuracy of system flow distribution and preventing overheating or underheating.

[0109] For example, in this embodiment, the secondary side first inlet 130 is disposed on one end face of the primary side inlet 110 on the coupling tank 100, and the secondary side second inlet 140 is disposed on one end face of the primary side outlet 120 on the coupling tank 100.

[0110] In some embodiments, this application also provides a heating system, which includes a dual-circuit mixing device as described in any of the above embodiments, a wall-hung boiler heat source, radiators, and a hot water pipe network. The water supply port and primary side inlet 110 of the wall-hung boiler heat source are connected, and the return port and primary side outlet 120 of the wall-hung boiler heat source are connected. The water inlet pipe of the radiator is connected to the outlet of the first output pipe, and the water outlet pipe of the radiator is connected to the secondary side inlet. The pipe network inlet and the second output pipe outlet of the hot water pipe network are connected, and the pipe network return port and the secondary side inlet of the hot water pipe network are connected.

[0111] In these embodiments, this application provides a complete heating system including the aforementioned dual-circuit mixing device, wall-mounted boiler as the heat source, radiators, and hot water piping network. This design aims to meet the efficient heating requirements of modern residential or commercial buildings with varying temperature needs through an integrated solution.

[0112] The dual-path mixing device includes components such as a coupling tank 100 (with a mixing chamber, a primary side inlet 110, a primary side outlet 120, a secondary side outlet 150, and a secondary side inlet), a first output pipeline, a second output pipeline, and a bypass pipeline 210, as described above.

[0113] The water supply port of the wall-hung boiler's heat source is connected to the primary side inlet 110 of the dual-way mixing device to provide high-temperature hot water to the system. The return port is connected to the primary side outlet 120 of the dual-way mixing device to receive low-temperature return water after heat exchange.

[0114] The radiator's inlet pipe is connected to the output port of the first output pipe of the dual-way mixing device, receiving hot water at a higher temperature to meet the needs of high-temperature heating. The outlet pipe is connected to one of the secondary side inlets of the dual-way mixing device (e.g., the first secondary side inlet 130), sending the used low-temperature return water back into the mixing chamber for reheating.

[0115] The inlet of the hot water pipe network (underfloor heating system) is connected to the outlet of the second output pipe of the dual-circuit mixing device, receiving regulated hot water at the appropriate temperature and supplying it to low-temperature heating terminals (such as the underfloor heating system). The return outlet of the pipe network is connected to one of the secondary side inlets of the dual-circuit mixing device (e.g., the second secondary side inlet 140), sending the low-temperature return water from the underfloor heating system back into the mixing chamber.

[0116] Furthermore, in these embodiments, since the dual-circuit mixing device has the aforementioned technical effects, the heating system including the dual-circuit mixing device should have the same technical effects, which will not be elaborated further here.

[0117] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0118] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0119] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A two-way water mixing device, characterized by, The double-path water mixing device comprises: a coupling tank having a mixing cavity, a primary-side water inlet, a primary-side water outlet, a secondary-side water outlet and a secondary-side water inlet, the primary-side water inlet, the primary-side water outlet, the secondary-side water outlet and the secondary-side water inlet being in communication with the mixing cavity respectively; a first output pipeline and a second output pipeline, an input port of the first output pipeline and an input port of the second output pipeline being in communication with the secondary-side water outlet respectively; a bypass pipeline, the second output pipeline being further in communication with the secondary-side water inlet through the bypass pipeline, forming an external closed loop independent of the mixing cavity.

2. The two-way mixing valve device according to claim 1, characterized in that The double-path water mixing device further comprises: an adjusting member, the adjusting member being connected with the bypass pipeline, and the adjusting member being capable of adjusting a flow passage cross-sectional area of the bypass pipeline.

3. The two-way mixing valve of claim 2, wherein The adjusting member is provided as a three-way adjusting valve, the three-way adjusting valve having a pair of inlets and an outlet; wherein one of the inlets is in communication with the output port of the second output pipeline, and the other of the inlets is in communication with the secondary-side water inlet through the bypass pipeline.

4. The two-way mixing valve of claim 2, wherein The double-path water mixing device further comprises: a first pumping member, the first pumping member being connected with the coupling tank, and the first pumping member being used for driving heating water in the mixing cavity to flow to the first output pipeline and the second output pipeline.

5. The two-way mixing valve of claim 4, wherein The double-path water mixing device further comprises: an integrated upper pole having an exhaust port, an upper pole water inlet, a first upper pole water outlet and a second upper pole water outlet, the upper pole water inlet, the first upper pole water outlet, the second upper pole water outlet and the exhaust port being in communication with each other, and the secondary-side water outlet being in communication with the upper pole water inlet respectively; wherein the first upper pole water outlet is in communication with the input port of the first output pipeline, and the second upper pole water outlet is in communication with the input port of the second output pipeline; an exhaust member, the exhaust member being provided at the exhaust port, and the exhaust member being used for controlling gas discharge of the exhaust port.

6. The two-way mixing valve of claim 5, wherein The adjusting member is provided as a three-way adjusting valve, the three-way adjusting valve having a pair of inlets and an outlet; one of the inlets of the three-way adjusting valve is in communication with the second upper pole water outlet, the other of the inlets of the three-way adjusting valve is in communication with the secondary-side water inlet through the bypass pipeline, and the outlet is in communication with the input port of the second output pipeline; The double-path water mixing device further comprises a second pumping member, the second pumping member being connected with the second output pipeline, and the second pumping member being capable of driving heating water to flow to the second output pipeline.

7. The two-way mixing valve of claim 6, wherein The integrated upper pole further has an upper pole cavity, the first upper pole water outlet, the second upper pole water outlet and the upper pole water inlet being in communication with the upper pole cavity respectively, a top of the upper pole cavity being defined with a gas storage portion, the gas storage portion being capable of storing gas, the exhaust port being located at the top of the gas storage portion, and the exhaust port being in communication with the gas storage portion.

8. The two-way mixing valve of claim 7, wherein, The first upper pole water outlet, the second upper pole water outlet and the upper pole water inlet are in communication with a bottom of the upper pole cavity respectively.

9. The two-way mixing valve of claim 1, wherein, The number of the secondary-side water inlets is a pair, one of which is a secondary-side first water inlet and the other is a secondary-side second water inlet; The secondary-side first water inlet is close to the primary-side water inlet, and the secondary-side second water inlet is far away from the primary-side water inlet, and the secondary-side second water inlet is communicated with the second output pipeline through the bypass pipeline.

10. A heating system, characterised in that, The heating system comprises: The double-way water mixing device according to any one of claims 1 to 9; A wall-hanging stove heating heat source, a water inlet of the wall-hanging stove heating heat source being communicated with the primary-side water inlet, and a backwater inlet of the wall-hanging stove heating heat source being communicated with the primary-side water outlet; A radiator, a water inlet pipe of the radiator being communicated with an output port of the first output pipeline, and a water outlet pipe of the radiator being communicated with the secondary-side water inlet; A hot water pipe network, a pipe network inlet of the hot water pipe network being communicated with an output port of the second output pipeline, and a pipe network backwater inlet of the hot water pipe network being communicated with the secondary-side water inlet.

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