Bathroom hot water heating system

Abstract

This invention relates to a bathroom hot water heating system, comprising: a heating device, an outlet valve, and a heating unit. The heating device heats water flowing from the inlet channel to the outlet channel and operates in either a water supply or heating mode. The outlet valve is connected to both the inlet and outlet channels and can switch between a closed and an open state. In the open state, the outlet valve allows water to flow from at least one of the inlet and outlet channels. In the closed state, the outlet valve stops the flow from both the inlet and outlet channels. The inlet end of the heating unit is connected to the outlet channel, and the outlet end is connected to the inlet channel. Because the heating unit is directly connected to both the inlet and outlet channels, complex connecting pipes between the heating unit and the hot water equipment are avoided, thus simplifying the connection between the hot water equipment and the heating unit and reducing the installation difficulty and cost of the heating terminal.

Description

Technical Field

[0001] This invention relates to the field of hot water supply technology, and in particular to a bathroom hot water heating system. Background Technology

[0002] Currently, common heating methods in my country include wall-mounted boilers, whole-house heating equipment using thermal energy and other energy sources, as well as heating terminals such as electric heaters and small electric heaters.

[0003] Based on the actual usage habits in different regions of my country, it is advisable for homes in the north to adopt the existing whole-house heating system. The characteristic of whole-house heating is that it provides heat to the house for a long time every day, and many families use municipal hot water for indoor heating.

[0004] However, given the increasing demand for localized bathroom heating in southern regions, whole-house heating is somewhat unsuitable for the local conditions. Southern winters are damp and cold, and the need for bathing is very strong; therefore, a cold bathroom environment negatively impacts the bathing experience. To improve the showering experience, a heating terminal needs to be installed in the bathroom. However, when installing a heating terminal in the bathroom, because some hot water devices are located outside the bathroom, a relatively complex connecting pipeline needs to be installed between the hot water devices and the heating terminal. This makes the installation of the heating terminal inconvenient, increasing the difficulty and cost of installation. Summary of the Invention

[0005] The first technical problem solved by this invention is to provide a bathroom hot water heating system that simplifies the connection between hot water equipment and heating device, and reduces the installation difficulty and cost of heating device.

[0006] The first technical problem mentioned above is solved by the following technical solution:

[0007] A bathroom hot water heating system includes an inlet channel and an outlet channel, wherein the inlet channel is provided with an input port, and the bathroom hot water heating system further includes:

[0008] A heating device is connected between the inlet channel and the outlet channel to heat the water flowing from the inlet channel to the outlet channel and to operate in a water supply or heating mode.

[0009] At least one outlet valve is connected to the inlet channel and the outlet channel, and the outlet valve is switchable between a closed state and an open state; in the open state, the outlet valve is used to output water from at least one of the inlet channel and the outlet channel; in the closed state, the outlet valve stops the output from the inlet channel and the outlet channel.

[0010] A heating device, wherein the inlet end of the heating device is connected to the outlet channel, and the outlet end of the heating device is connected to the inlet channel.

[0011] The bathroom hot water heating system of this invention offers the following advantages compared to prior art: When the bathroom hot water heating system needs to output hot water, room temperature water is input from the inlet port into the inlet channel, the heating device operates in the water supply state, and the outlet valve is in the open state. When the water in the outlet channel is output through the outlet valve, the water in the inlet channel is replenished to the outlet channel via the heating device, thus enabling the outlet channel to output hot water through the outlet valve. When the bathroom hot water heating system needs to raise the temperature in the bathroom, the outlet valve is closed, the water in the inlet channel is heated by the heating device and flows to the outlet channel, while the water in the outlet channel flows back to the inlet channel via the heating device, forming a circulation. As the water flows from the outlet channel to the inlet channel, the heating device absorbs the heat from the water and releases the heat into the bathroom through airflow, thereby raising the temperature in the bathroom. Because the heating device is directly connected to the inlet and outlet water channels, it avoids the need for complicated connecting pipes between the heating device and the hot water equipment, thus simplifying the connection between the hot water equipment and the heating device and reducing the installation difficulty and cost of the heating terminal.

[0012] In one embodiment, the outlet valve has a first inlet, a second inlet, and an outlet; the first inlet is used to connect to the inlet channel, and the second inlet is used to connect to the outlet channel; the outlet valve is also used to adjust the flow rate between the first inlet and the outlet, or to adjust the flow rate between the second inlet and the outlet. This allows for adjustment of the flow rate injected into the outlet valve from the inlet or outlet channel, mixing ambient temperature water and hot water in a desired ratio, thus making the outlet valve's output temperature adjustable.

[0013] In one embodiment, the first access terminal is connected to a first section of the water inlet channel distributed in the bathroom, and the second access terminal is connected to a second section of the water outlet channel distributed in the bathroom; the water inlet of the heating device is connected to the water outlet channel through the first section, and the water outlet of the heating device is connected to the water inlet channel through the second section.

[0014] In one embodiment, the heating device includes a first burner, a first heat exchanger, and a second heat exchanger. The first heat exchanger is disposed on the first burner, and the second heat exchanger is located to one side of the first heat exchanger. In the water supply state, the first heat exchanger is connected between the inlet channel and the outlet channel and is used to absorb the heat released by the combustion gas of the first burner and transfer the heat to the water flowing inside the first heat exchanger. In the heating state, the second heat exchanger is connected between the inlet channel and the outlet channel and is used to absorb the heat in the first heat exchanger and transfer the heat to the water flowing inside the second heat exchanger. This results in a lower heating efficiency of the heating device in the heating state compared to the water supply state, preventing the water flowing through the heating device from overheating or boiling in the heating state.

[0015] In one embodiment, the second heat exchanger has a heat source section and a heat exchange section, the heat exchange section being used to absorb part of the heat from the heat source section; in the heating state, the heat source section is used to cooperate with the first heat exchanger to form a water flow loop, and the heat exchange section is used to cooperate with the heating device to form a water flow loop. Thus, the heat from the first heat exchanger can be transferred to the heat source section by utilizing the circulating water flow, and the heat from the heat exchange section can be transferred to the heating device by utilizing the circulating water flow.

[0016] In one embodiment, the heating device further includes a first switching valve connected to the inlet channel and a second switching valve connected to the outlet channel; the first switching valve and the second switching valve are used to connect the first heat exchanger and one of the heat exchange sections between the inlet channel and the outlet channel. This allows control of the water flow path between the inlet channel and the outlet channel.

[0017] In one embodiment, the heating device operates in the water supply state when the outlet valve is in the open state; the heating device operates in the heating state when the outlet valve is in the closed state. Thus, the state switching of the heating device can be directly triggered by controlling the outlet valve.

[0018] In one embodiment, the bathroom hot water heating system further includes a sensor for identifying the state of the water outlet valve and generating an adjustment signal; the heating device switches between the water supply state and the heating state according to the adjustment signal from the sensor. Therefore, the state of the heating device can be switched automatically.

[0019] In one embodiment, the heating device includes a first burner, a first heat exchanger, a second burner, and a second heat exchanger; in the water supply state, the first heat exchanger is connected between the inlet channel and the outlet channel and is used to transfer the heat released by the combustion gas of the first burner to the water flowing inside the first heat exchanger; in the heating state, the second heat exchanger is connected between the inlet channel and the outlet channel and is used to transfer the heat released by the combustion gas of the second burner to the water flowing inside the second heat exchanger.

[0020] In one embodiment, the heating device further includes a first switching valve connected to the inlet channel and a second switching valve connected to the outlet channel; the first switching valve and the second switching valve are used to connect one of the first heat exchanger and the second heat exchanger between the inlet channel and the outlet channel, thereby controlling the flow path of water between the inlet channel and the outlet channel. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a bathroom hot water heating system according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of a bathroom hot water heating system according to another embodiment of the present invention.

[0023] Figure label:

[0024] 100. Bathroom hot water heating system; 20. Inlet channel; 21. Input port; 22. First section; 30. Outlet channel; 31. Second section; 40. Heating device; 41. First burner; 411. Gas supply valve; 42. First heat exchanger; 43a / 43b. Second heat exchanger; 431. Heat source section; 432. Heat exchange section; 44. First switching valve; 45. Second switching valve; 46. Second burner; 47a. First switching valve; 47b. Second switching valve; 48a. First pump body; 48b. Second pump body; 49. Check valve; 50. Outlet valve; 60. Heating device. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] 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 at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this invention, unless otherwise explicitly 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] The technical solutions provided by the embodiments of the present invention are described below with reference to the accompanying drawings.

[0032] Combination Figure 1 and Figure 2 As shown, the present invention provides a bathroom hot water heating system 100.

[0033] Specifically, when hot water needs to be supplied to users, the bathroom hot water heating system 100 heats the water flow and then outputs hot water to users for bathing or cleaning. When it is necessary to raise the ambient temperature in the bathroom, the bathroom hot water heating system 100 releases heated airflow into the bathroom, thereby raising the ambient temperature inside the bathroom.

[0034] In some embodiments, a bathroom hot water heating system 100 has an inlet channel 20 and an outlet channel 30, with the inlet channel 20 having an input port 21. The bathroom hot water heating system 100 also includes a heating device 40, an outlet valve 50, and a heating device 60. The heating device 40 is connected between the inlet channel 20 and the outlet channel 30 to heat the water flowing from the inlet channel 20 to the outlet channel 30 and is used for operation in either a water supply state or a heating state. The heating efficiency of the heating device 40 in the water supply state is greater than that in the heating state. At least one outlet valve 50 is connected to the inlet channel 20 and the outlet channel 30, and the outlet valve 50 is switchable between a closed state and an open state. In the open state, the outlet valve 50 allows water to flow out from at least one of the inlet channel 20 and the outlet channel 30. In the closed state, the outlet valve 50 stops the output from the inlet channel 20 and the outlet channel 30. The heating device 60 is connected between the water outlet channel 30 and the water inlet channel 20 to absorb the heat of the water flowing from the water outlet channel 30 to the water inlet channel 20 and to release the heat into the bathroom through airflow.

[0035] When the bathroom hot water heating system 100 needs to output hot water, room temperature water enters from the inlet port 21 into the inlet channel 20, the heating device 40 operates in the water supply state, and the outlet valve 50 is in the open state. When the water in the outlet channel 30 is output through the outlet valve 50, the water in the inlet channel 20 is replenished to the outlet channel 30 by the heating device 40, so the outlet channel 30 can output hot water through the outlet valve 50. When the bathroom hot water heating system 100 needs to raise the temperature in the bathroom, the outlet valve 50 is closed, the water in the inlet channel 20 is heated by the heating device 40 and flows to the outlet channel 30, while the water in the outlet channel 30 flows back to the inlet channel 20 through the heating device 60, forming a circulation. When the water flows from the outlet channel 30 to the inlet channel 20, the heating device 60 absorbs the heat of the water and releases the heat into the bathroom through airflow, thereby raising the temperature in the bathroom. Since the heating device 60 is directly connected to the inlet channel 20 and the outlet channel 30, it avoids the need to install complicated connecting pipes between the heating device 60 and the hot water equipment. This simplifies the connection between the hot water equipment and the heating device 60, and reduces the installation difficulty and cost of the heating device 60.

[0036] In one embodiment, the water flow injected into the input port 21 is tap water. The inlet channel 20 or the outlet channel 30 can be a tubular component pre-embedded in the wall. After the water flows into the inlet channel 20 from the input port 21, it forms a room temperature water flow. After being heated by the heating device 40, the water flows into the outlet channel 30 and forms a hot water flow.

[0037] In some implementations, combined Figure 1As shown, the heating device 40 includes a first burner 41, a first heat exchanger 42, and a second heat exchanger 43a. The first heat exchanger 42 is mounted on the first burner 41, and the second heat exchanger 43a is located on one side of the first heat exchanger 42. In the water supply state, the first heat exchanger 42 is connected between the inlet channel 20 and the outlet channel 30 and is used to absorb the heat released by the combustion gas of the first burner 41 and transfer the heat to the water flowing inside the first heat exchanger 42. In the heating state, the second heat exchanger 43a is connected between the inlet channel 20 and the outlet channel 30, and is used to absorb the heat in the first heat exchanger 42 and transfer the heat to the water flowing inside the second heat exchanger 43a. Specifically, in the water supply state, the water flow from the inlet channel 20 flows from the first heat exchanger 42 to the outlet channel 30. Part of the heat absorbed by the first heat exchanger 42 from the first burner 41 is transferred to the water flowing through it, while the remaining heat may be released in other forms, such as external airflow. In the heating state, the water flow from the inlet channel 20 flows from the second heat exchanger 43a to the outlet channel 30. The heat in the second heat exchanger 43a originates from the first heat exchanger 42, and only a portion of the heat absorbed by the second heat exchanger 43a from the first heat exchanger 42 is transferred to the water flowing through it. This results in the heating efficiency of the heating device 60 being lower in the heating state than in the water supply state, preventing the water flowing through the heating device 60 from overheating or boiling in the heating state.

[0038] More specifically, the heating efficiency of heating device 40 in heating mode is lower than that in water supply mode. Since the water temperature does not become excessively high when flowing through heating device 60, it facilitates continuous water circulation, allowing the heat gained from the second heat exchanger 43a to balance the heat transferred to heating device 60. This also helps to introduce a stable airflow into the bathroom, preventing discomfort caused by overheated airflow and avoiding fluctuations in temperature. The first heat exchanger 42 is a finned heat exchanger.

[0039] Furthermore, combined Figure 1As shown, the second heat exchanger 43a has a heat source section 431 and a heat exchange section 432. The heat exchange section 432 is used to partially absorb heat from the heat source section 431. The heat source section 431 is used to form a water flow loop with the first heat exchanger 42, and the heat exchange section 432 is used to form a water flow loop with the heating device 60. Specifically, the water flow loop formed between the heat source section 431 and the first heat exchanger 42 means that the first heat exchanger 42 and the heat source section 431 are connected end to end, so that water flows out from one end of the first heat exchanger 42 and flows into one end of the heat source section 431, and flows out from one end of the heat source section 431 and flows into one end of the first heat exchanger 42. The heat from the first heat exchanger 42 is transferred to the heat source section 431 by means of water circulation. Similarly, after the heat exchange section 432 forms a loop with the heating device 60, the heat from the heat exchange section 432 can be transferred to the heating device 60 by means of water circulation.

[0040] More specifically, the second heat exchanger 43a is a plate heat exchanger. (In conjunction with...) Figure 1 As shown, the heating device 40 also includes a first switching valve 47a and a first pump body 48a. The first switching valve 47a is connected between the heat source section 431 and the first heat exchanger 42, and is open in the heating state and closed in the water supply state. The first pump body 48a is connected between the first switching valve 47a and the first heat exchanger 42 to form a circulating water flow through the heat source section 431 and the first heat exchanger 42 in the heating state. Figure 1 As shown, the heating device 40 also includes a second switching valve 47b connected between the heat source section 431 and the heat exchange section 432. In the heating state, if the flow rate between the heat source section 431 and the first heat exchanger 42 is insufficient, simply opening the second switching valve 47b can allow a portion of the water flowing out of the heat exchange section 432 to replenish the flow between the heat source section 431 and the first heat exchanger 42.

[0041] In some implementations, combined Figure 1 As shown, the heating device 40 also includes a first switching valve 44 connected to the inlet water channel 20 and a second switching valve 45 connected to the outlet water channel 30. The first switching valve 44 and the second switching valve 45 are used to connect one of the first heat exchanger 42 and the heat exchange section 432 between the inlet water channel 20 and the outlet water channel 30. This allows control of the water flow path between the inlet water channel 20 and the outlet water channel 30. Specifically, in the water supply state, the first switching valve 44 and the second switching valve 45 connect the heat exchange section 432 between the inlet water channel 20 and the outlet water channel 30. In the heating state, the first switching valve 44 and the second switching valve 45 connect the first heat exchanger 42 between the inlet water channel 20 and the outlet water channel 30.

[0042] Furthermore, the first switching valve 44 has a first switching port connected to one end of the first heat exchanger 42, a second switching port connected to one end of the heat exchange section 432, and a first normal port connected to the inlet water channel 20. The first normal port can be selectively connected to either the first switching port or the second switching port. The second switching valve 45 has a third switching port connected to the other end of the first heat exchanger 42, a fourth switching port connected to the other end of the heat exchange section 432, and a second normal port connected to the outlet water channel 30. The second normal port can be selectively connected to either the third or the fourth switching port. In the water supply state, the first normal port is connected to the first switching port, and the second normal port is connected to the third switching port, thereby connecting the first heat exchanger 42 between the inlet water channel 20 and the outlet water channel 30. In the heating state, the first normal port is connected to the second switching port, and the second normal port is connected to the fourth switching port, thereby connecting the first heat exchange section 432 between the inlet water channel 20 and the outlet water channel 30.

[0043] In some implementations, combined Figure 1 As shown, the heating device 40 also includes a second pump body 48b, which is connected between the heat exchange section 432 and the inlet channel 20 or between the heat exchange section 432 and the outlet channel 30. In heating mode, the second pump body 48b circulates water at a predetermined flow rate between the heat exchange section 432, the inlet channel 20, the outlet channel 30, and the heating device 60, transferring the heat absorbed by the heat exchange section 432 from the heat source section 431 to the heating device 60. Specifically, the second pump body 48b is located between the fourth switching port and the heat exchange section 432.

[0044] In some implementations, combined Figure 2 As shown, the heating device 40 includes a first burner 41, a first heat exchanger 42, a second burner 46, and a second heat exchanger 43b. In the water supply state, the first heat exchanger 42 is connected between the inlet channel 20 and the outlet channel 30 and is used to transfer the heat released by the combustion gas of the first burner 41 to the water flowing inside the first heat exchanger 42. In the heating state, the second heat exchanger 43b is connected between the inlet channel 20 and the outlet channel 30 and is used to transfer the heat released by the combustion gas of the second burner 46 to the water flowing inside the second heat exchanger 43b. Specifically, by providing heating to the second heat exchanger 43b with a separate second burner 46, energy loss due to multiple heat exchanges can be avoided. More specifically, the heat output of the second burner 46 is less than that of the first burner 41, preventing the water temperature flowing through the heating device 60 from becoming too high in the heating state.

[0045] Furthermore, combined Figure 2As shown, the first switching valve 44 and the second switching valve 45 are used to connect one of the first heat exchanger 42 and the second heat exchanger 43b between the inlet channel 20 and the outlet channel 30. This allows control of the water flow path between the inlet channel 20 and the outlet channel 30. Specifically, in the water supply state, the first switching valve 44 and the second switching valve 45 connect the first heat exchanger 42 between the inlet channel 20 and the outlet channel 30. In the heating state, the first switching valve 44 and the second switching valve 45 connect the second heat exchanger 43b between the inlet channel 20 and the outlet channel 30. Figure 2 As shown, the heating device 40 also includes a one-way valve 49 connected between one end of the first heat exchanger 42 and one end of the second heat exchanger 43b. (In conjunction with...) Figure 2 As shown, the second heat exchanger 43b is a finned heat exchanger.

[0046] Specifically, in combination Figure 2 As shown, the second pump body 48b is disposed between the second heat exchanger 43b and the inlet channel 20 or between the second heat exchanger 43b and the outlet channel 30. More specifically, the second pump body 48b is disposed between one end of the second heat exchanger 43b and the fourth switching port, so that the water flow circulates at a predetermined flow rate between the second heat exchanger 43b, the inlet channel 20, the outlet channel 30 and the heating device 60.

[0047] Specifically, in combination Figure 1 and Figure 2 As shown, the first burner 41 or the second burner 46 is respectively connected to a gas supply valve 411 to control the gas supply.

[0048] In some implementations, combined Figure 1 and Figure 2 As shown, the water outlet valve 50 has a first inlet, a second inlet, and an outlet. The first inlet is used to connect to the inlet channel 20, and the second inlet is used to connect to the outlet channel 30. The water outlet valve 50 is also used to adjust the flow rate between the first inlet and the outlet, or to adjust the flow rate between the second inlet and the outlet. This allows adjustment of the flow rate injected into the water outlet valve 50 from the inlet channel 20 or the outlet channel 30, mixing ambient temperature water and hot water in the desired ratio, making the output temperature of the water outlet valve 50 adjustable. More specifically, the water outlet valve 50 is a shower faucet or a hot and cold water faucet.

[0049] In some implementations, combined Figure 1 and Figure 2As shown, the first access end is connected to the first section 22 of the inlet channel 20 distributed within the bathroom, and the second access end is connected to the second section 31 of the outlet channel 30 distributed within the bathroom. The inlet end of the heating device 60 is connected to the outlet channel 30; more specifically, the inlet end of the heating device 60 is connected to the outlet channel 30 via the first section 22. The outlet end of the heating device 60 is connected to the water channel 20; more specifically, the outlet end of the heating device 60 is connected to the inlet channel 20 via the second section 31. Specifically, since the outlet valve 50 is a shower faucet or hot and cold water faucet installed in the bathroom, and the heating device 60 is connected to the first section 22 and the second section 31, when the heating device 60 is installed through modification, since the heating device 60 is installed in the bathroom, the extension length of the pipe connecting the heating device 60 to the inlet channel 20 or the outlet channel 30 can be reduced, which helps to reduce the impact on the internal environment of the bathroom.

[0050] In some embodiments, the heating device 40 operates in a water supply state when the outlet valve 50 is open, and in a heating state when the outlet valve 50 is closed. Thus, the state switching of the heating device 40 can be directly triggered by controlling the outlet valve 50.

[0051] In some embodiments, the bathroom hot water heating system 100 further includes a sensor for identifying the state of the outlet valve 50 and generating an adjustment signal. The heating device 40 switches between a water supply state and a heating state based on the adjustment signal from the sensor. Specifically, the sensor may be a limit switch that identifies the state of the outlet valve 50 by sensing changes in the position of the valve core or handle of the outlet valve 50. The adjustment signal is sent in data form to the controller of the first switching valve 44 and the second switching valve 45. The controller adjusts the connection state of the first switching valve 44 and the second switching valve 45, thereby changing the flow path between the inlet channel 20 and the outlet channel 30, thus automatically switching the state of the heating device 40.

[0052] In practical applications, when the outlet valve 50 is closed, the first switching valve 44 connects the inlet end of the heat exchange section 432 with the inlet channel 20, and the second switching valve 45 connects the outlet end of the heat exchange section 432 with the outlet channel 30, thus forming a closed-loop water flow circuit between the first heat exchanger 42 and the heat source section 431, and a closed-loop water flow circuit between the second heat exchanger 43a and the heating device 60. At this time, the system is in heating mode. When the outlet valve 50 is opened, the sensor detects the opening signal of the outlet valve 50 and sends the signal to the controller. The controller adjusts the connection state of the first switching valve 44 and the second switching valve 45 according to the signal, so that the first heat exchanger 42 and the outlet valve 50 are connected. At this time, the system is in water supply mode, so that users can adjust the outlet water temperature according to their actual needs and use warm water. Therefore, by controlling and linking the outlet valve 50, the sensor, the first switching valve 44, and the second switching valve 45, the system can flexibly switch between heating and water supply states, ensuring that the two operating states do not interfere with each other and improving the user experience.

[0053] In some embodiments, the heating device 60 includes a housing, pipe fittings, and fan blades. The pipe fittings and fan blades are housed within the housing. The pipe fittings connect to the inlet water channel 20 and the outlet water channel 30. The fan blades are used to generate airflow through the pipe fittings by rotating during heating. Specifically, after the water in the outlet water channel 30 enters the pipe fittings, the heat of the water is transferred to the pipe fittings, causing the temperature inside and outside the pipe fittings to rise. After the airflow passes through the pipe fittings, the airflow is heated by the pipe fittings, thereby raising the ambient temperature in the bathroom. More specifically, the pipe fittings are arranged in a coiled shape to increase the length of the pipe fittings and the heat absorption efficiency of the water flow within the limited housing space. More specifically, the fan blades are driven by a motor to rotate, thereby generating airflow. More specifically, the housing has an air inlet and an air outlet; air in the bathroom enters the housing through the air inlet and then exits through the air outlet.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A bathroom hot water heating system (100) having an inlet channel (20) and an outlet channel (30), wherein the inlet channel (20) is provided with an input port (21), characterized in that, The bathroom hot water heating system (100) also includes: A heating device (40) is connected between the water inlet channel (20) and the water outlet channel (30) to heat the water flowing from the water inlet channel (20) to the water outlet channel (30) and to operate in water supply or heating mode. At least one water outlet valve (50) has a first inlet, a second inlet, and an outlet; the first inlet is connected to a first section (22) of the water inlet channel (20) distributed in the bathroom, and the second inlet is connected to a second section (31) of the water outlet channel (30) distributed in the bathroom; the water outlet valve (50) can switch between a closed state and an open state, and is also used to adjust the flow rate between the first inlet and the outlet or to adjust the flow rate between the second inlet and the outlet. The flow rate between the outlets; the heating device (40) operates in the water supply state when the outlet valve (50) is in the open state, and the outlet valve (50) in the open state is used to output water from at least one of the inlet channel (20) and the outlet channel (30); the heating device (40) operates in the heating state when the outlet valve (50) is in the closed state, and the outlet valve (50) stops the water output from the inlet channel (20) and the outlet channel (30); Heating device (60), the water inlet of the heating device (60) is connected to the water outlet channel (30) through the first section (22), and the water outlet of the heating device (60) is connected to the water inlet channel (20) through the second section (31); The heating device (40) includes a first burner (41), a first heat exchanger (42), and a second heat exchanger (43a). The first heat exchanger (42) is disposed on the first burner (41), and the second heat exchanger (43a) is located on one side of the first heat exchanger (42). In the water supply state, the first heat exchanger (42) is connected between the inlet channel (20) and the outlet channel (30) and is used to absorb the heat released by the combustion gas of the first burner (41) and transfer the heat to the water flowing inside the first heat exchanger (42). In the heating state, the second heat exchanger (43a) is connected between the inlet channel (20) and the outlet channel (30) and is used to absorb the heat in the first heat exchanger (42) and transfer the heat to the water flowing inside the second heat exchanger (43a).

2. The bathroom hot water heating system (100) according to claim 1, characterized in that, The second heat exchanger (43a) has a heat source section (431) and a heat exchange section (432), wherein the heat exchange section (432) is used to absorb part of the heat from the heat source section (431); in the heating state, the heat source section (431) is used to cooperate with the first heat exchanger (42) to form a water flow loop, and the heat exchange section (432) is used to cooperate with the heating device (60) to form a water flow loop.

3. The bathroom hot water heating system (100) according to claim 2, characterized in that, The heating device (40) further includes a first switching valve (44) connected to the inlet channel (20) and a second switching valve (45) connected to the outlet channel (30); the first switching valve (44) and the second switching valve (45) are used to connect the first heat exchanger (42) and one of the heat exchange sections (432) between the inlet channel (20) and the outlet channel (30).

4. The bathroom hot water heating system (100) according to claim 1, characterized in that, The bathroom hot water heating system (100) also includes a sensor for identifying the state of the outlet valve (50) and generating an adjustment signal; the heating device (40) switches between the water supply state and the heating state according to the adjustment signal of the sensor.

5. The bathroom hot water heating system (100) according to claim 1, characterized in that, The heating device (40) includes a first burner (41), a first heat exchanger (42), a second burner (46), and a second heat exchanger (43b). In the water supply state, the first heat exchanger (42) is connected between the inlet channel (20) and the outlet channel (30) and is used to transfer the heat released by the combustion gas of the first burner (41) to the water flowing inside the first heat exchanger (42). In the heating state, the second heat exchanger (43b) is connected between the inlet channel (20) and the outlet channel (30) and is used to transfer the heat released by the combustion gas of the second burner (46) to the water flowing inside the second heat exchanger (43b).

6. The bathroom hot water heating system (100) according to claim 5, characterized in that, The heating device (40) further includes a first switching valve (44) connected to the inlet channel (20) and a second switching valve (45) connected to the outlet channel (30); the first switching valve (44) and the second switching valve (45) are used to connect one of the first heat exchanger (42) and the second heat exchanger (43b) between the inlet channel (20) and the outlet channel (30).

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