Water heating device

Abstract

The utility model provides a water heating device which can independently adjust the temperature of a plurality of hot water outlet waterways. The hot water device comprises a cold water mixing waterway, at least two hot water outlet waterways and an adjusting valve. At least one hot water outlet waterway is communicated with one cold water mixing waterway; each cold water mixing waterway is provided with at least one adjusting valve, and the adjusting valves are used for adjusting the cold water flow of the cold water mixing waterways. According to the hot water device provided by the embodiment of the invention, at least one hot water outlet waterway is communicated with the corresponding cold water mixing waterway, and the hot water outlet waterway communicated with the cold water mixing waterway can realize independent temperature control by adjusting the flow of the cold water mixing waterway.

Description

Technical Field

[0001] The present application relates to the technical field of fluid heating, and in particular to a water heating device. Background Art

[0002] In the related art, a hot water device can be used to provide hot water for production or life. A hot water device usually has only one water outlet. Taking household users' water use as an example, when the water points such as the bathroom and kitchen all need hot water, each water point is connected to the same water outlet of the hot water device. The water temperature of the same water outlet of the hot water device is the same, but different water points may have different requirements for hot water temperature. This causes users to mix water at the water point when using it, or use a thermostatic faucet to heat it again to adjust the water temperature. However, the mixing and adjustment effect at the water point is poor, and the thermostatic faucet is expensive, which makes it difficult to meet the needs of most users and affects the user experience. Utility Model Content

[0003] In view of this, the embodiment of the present application is intended to provide a hot water device capable of independently adjusting the temperature of multiple hot water outlet waterways. The hot water device includes a cold water mixing waterway, at least two hot water outlet waterways, and a regulating valve. At least one of the hot water outlet waterways is connected to one of the cold water mixing waterways; each of the cold water mixing waterways is provided with at least one regulating valve, and the regulating valve is used to adjust the cold water flow of the cold water mixing waterway.

[0004] In some embodiments, the hot water device includes at least two temperature detection components, at least one of which is arranged downstream of the connection between each hot water outlet waterway and the cold water mixing waterway, and the regulating valve adjusts the cold water flow rate according to the water temperature detected by the temperature detection component.

[0005] In some embodiments, the regulating valve is a servo bypass valve.

[0006] In some embodiments, the hot water device includes a heating water circuit, and the hot water outlet water circuit exchanges heat with the heating water circuit.

[0007] In some embodiments, the hot water device includes a heat exchanger and a main hot water water circuit, the heating water circuit includes a heating water outlet branch, all the hot water outlet water circuits are connected to the main hot water water circuit, and the main hot water water circuit and the heating water outlet branches are in contact with the heat exchanger.

[0008] In some embodiments, the hot water device includes a water source waterway, and the water source waterway is connected to the upstream end of the main hot water waterway.

[0009] In some embodiments, the heating water circuit includes a heating return water circuit and a return water branch circuit, and the return water branch circuit connects the heating outlet branch circuit and the heating return water circuit.

[0010] In some embodiments, the hot water device includes a water source waterway, and all of the cold water and mixed water waterways are connected to the water source waterway.

[0011] In some embodiments, the hot water device includes a temperature detector disposed in the water source waterway, and the temperature detector is located upstream of the connection between the cold water mixing waterway and the water source waterway.

[0012] In some embodiments, the hot water device includes a shell, and the cold water mixing water circuit and the regulating valve are both located in the shell.

[0013] In the hot water device provided in the embodiment of the present application, at least one hot water outlet waterway is connected to the corresponding cold water mixing waterway, and the hot water outlet waterway can achieve independent temperature control by adjusting the flow rate of the cold water mixing waterway. The hot water outlet waterway connected to the cold water mixing waterway can set different outlet water temperatures according to needs, and when the user uses water at multiple water points, the user can directly obtain water at the target temperature at the water point. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a water heating device in one embodiment of the present application;

[0015] Figure 2 for Figure 1 A magnified schematic diagram of point A;

[0016] Figure 3 for Figure 1 An enlarged schematic diagram of point B;

[0017] Figure 4 It is a structural schematic diagram of a water heating device in another embodiment of the present application;

[0018] Figure 5 for Figure 4 An enlarged schematic diagram of point C;

[0019] Figure 6 for Figure 4 Enlarged schematic diagram of point D.

[0020] Description of reference numerals:

[0021] 10. Cold water mixing water circuit; 20. Hot water outlet water circuit; 21. Hot water outlet; 30. Regulating valve; 40. Temperature detection component; 50. Heating water circuit; 51. Heating outlet branch; 52. Heating return water circuit; 53. Return branch; 54. Heating outlet water circuit; 55. Heating side branch; 56. Heating outlet pipe; 60. Heat exchange component; 70. Main hot water circuit; 80. Water source circuit; 90. Thermometer; 110. Casing. DETAILED DESCRIPTION

[0022] The following embodiments of the present application are further described in detail in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0023] In the description of the embodiments of the present application, it should be noted that the directions or positional relationships indicated by the terms "upstream" and "downstream" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0024] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0025] In the description of this specification, the description with reference to the terms "some embodiments", "exemplarily", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] It should be noted that the term "include" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] It should be noted that in the embodiments of the present application, at least one includes one, two and more than two, and a plurality includes two and more than two.

[0028] In the related art, multiple water points in a home cannot independently control the water temperature. When users use water at multiple water points, the water temperature may be adjusted repeatedly due to different water temperature requirements, resulting in a poor user experience.

[0029] In view of this, please refer to Figure 1-Figure 6The present application provides a hot water device that can meet the need to independently adjust the temperature of each hot water waterway. The hot water device includes a hot water system, and the hot water system includes a cold water mixing waterway 10, at least two hot water outlet waterways 20, and a regulating valve 30. At least one hot water outlet waterway 20 is connected to a cold water mixing waterway 10; each cold water mixing waterway 10 is provided with at least one regulating valve 30, and the regulating valve 30 is used to adjust the cold water flow of the cold water mixing waterway 10.

[0030] For example, see Figure 1-Figure 3 The number of cold water mixing water channels 10 and hot water outlet water channels 20 is the same, and each cold water mixing water channel 10 is connected to a hot water outlet water channel 20. According to the water temperature requirement, the cold water flow rate of the cold water mixing water channel 10 is adjusted by the regulating valve 30, so that the hot water outlet water channel 20 can obtain different hot water temperatures.

[0031] For example, see Figure 4-Figure 6 , one of the hot water outlet waterways 20 is not connected to the cold water mixing waterway 10 and directly discharges water. The hot water outlet waterway 20 connected to the cold water mixing waterway 10 adjusts the cold water flow rate of the cold water mixing waterway 10 through the regulating valve 30 according to the water temperature demand. In this way, the water temperatures outputted from the ends of different hot water outlet waterways 20 can be the same or different.

[0032] It is understandable that the number of hot water outlet waterways 20 is not limited, and the number of hot water outlet waterways 20 can be set according to demand. Figure 3 As shown, there are two cold water mixing water channels 10 and two hot water outlet water channels 20. Figure 4 As shown, there is one cold water mixing water channel 10 and two hot water outlet water channels 20, one of which is not connected to the cold water mixing water channel 10, and the other hot water outlet water channel 20 is connected to the cold water mixing water channel 10. The water temperatures of the two hot water outlet water channels 20 can be made the same or different by adjusting the cold water flow rate of the cold water mixing water channel 10.

[0033] Illustratively, different hot water outlet waterways 20 can be used to deliver water to different water use points. Users can pre-set different target temperatures for different hot water outlet waterways 20. When multiple users use hot water at different water use points, the hot water outlet waterways 20 can respectively deliver hot water of different temperatures to different water use points to meet water needs.

[0034] Exemplarily, each hot water outlet waterway 20 has a hot water outlet 21 , and each hot water outlet 21 is correspondingly provided with a temperature controller. The user can send instructions to the temperature controller according to demand to preset or adjust the water temperature of the hot water outlet 21 .

[0035] In this embodiment, at least one hot water outlet waterway 20 is connected to the corresponding cold water mixed waterway 10. By adjusting the flow of the cold water mixed waterway 10, the hot water outlet waterway 20 connected to the cold water mixed waterway 10 can achieve independent temperature control, and different water outlet temperatures can be set according to needs. When the user uses water at multiple water points, water of the target temperature can be obtained directly at the water point. It should be noted that the specific temperature of the hot water and the specific temperature of the cold water are not limited, and the temperature of the hot water can be higher than the temperature of the cold water.

[0036] For some examples, see Figure 2 The hot water device includes at least two temperature detection components 40, at least one temperature detection component 40 is arranged downstream of the connection between each hot water outlet waterway 20 and the cold water mixing waterway 10, and the regulating valve 30 adjusts the cold water flow according to the water temperature detected by the temperature detection component 40.

[0037] At least one temperature detection element 40 is correspondingly provided for each hot water outlet waterway 20 to independently monitor the temperature of each hot water outlet waterway 20. By combining the regulating valve 30 with the temperature detection element 40, the water temperature of each hot water outlet waterway 20 can be independently adjusted. The temperature detection element 40 is provided downstream of the connection between the hot water outlet waterway 20 and the cold water mixing waterway 10, so that the temperature detection element 40 detects the temperature after the hot water and the cold water are mixed, so that the obtained temperature is closer to the target temperature preset by the user.

[0038] In some embodiments, the regulating valve 30 is a servo bypass valve. The servo bypass valve can be set as a servo valve, which can adjust the hydraulic flow of the cold water mixing waterway 10 and control the liquid flow and direction through electrical signals or mechanical signals. By controlling the water temperature through the servo bypass valve, the control speed and control accuracy of the temperature of the hot water outlet waterway 20 can be improved.

[0039] It is understandable that the hot water outlet waterway 20 is not limited to a specific method for obtaining heat. Heat may be provided by a gas heater or an electric heater, or heat may be obtained by heat exchange with other heat sources.

[0040] For some examples, see Figure 1 and Figure 3 The hot water device includes a heating water circuit 50 , and the hot water outlet water circuit 20 exchanges heat with the heating water circuit 50 .

[0041] Providing heat to the hot water outlet waterway 20 through the heating waterway 50 can increase the water temperature in the hot water outlet waterway 20, thereby saving energy consumption, reducing the number of equipment used for heating, and reducing danger.

[0042] The heating water circuit 50 is used for indoor heating. For example, the heating water circuit 50 can be used to provide hot water for floor heating to achieve indoor space heating.

[0043] For some examples, see Figure 1 The hot water device includes a heat exchanger 60 and a total hot water circuit 70, and the heating circuit 50 includes a heating outlet branch 51. All hot water outlet circuits 20 are connected to the total hot water circuit 70, and the total hot water circuit 70 and the heating outlet branch 51 are in contact with the heat exchanger 60. The total hot water circuit 70 and the heating outlet branch 51 exchange heat through the heat exchanger 60, and the water temperature in the total hot water circuit 70 is increased by heat exchange. The total hot water circuit 70 then provides hot water to each hot water outlet circuit 20, and cold water of different flow rates is mixed into the hot water outlet circuit 20 through the cold water mixing circuit 10 to adjust the water temperature of the hot water outlet circuit 20.

[0044] Exemplarily, the heat exchanger 60 is a plate heat exchanger. The plate heat exchanger includes a plurality of plates, which are spaced apart to form a plurality of heat exchange channels. The total hot water channel 70 and the heating water outlet branch 51 are arranged in the heat exchange channel, and water flows through the plates for heat exchange. It can be understood that the total hot water channel 70 and the heating water outlet branch 51 are spaced apart in the heat exchange channel to improve the heat exchange efficiency.

[0045] In this embodiment, the plate heat exchanger can reduce heat loss and improve heat exchange efficiency.

[0046] Exemplarily, the heat exchange element 60 is a double-tube heat exchanger.

[0047] For some examples, see Figure 3 The hot water device includes a water source waterway 80, and the water source waterway 80 is connected to the upstream end of the main hot water waterway 70. Exemplarily, the connection between the water source waterway 80 and the main hot water waterway 70 is located upstream of the connection between the hot water outlet waterway 20 and the main hot water waterway 70, and the water in the water source waterway 80 flows to the main hot water waterway 70 after being heated by the heat exchange element 60, and then flows to the hot water outlet waterway 20.

[0048] The water source waterway 80 is used to connect to a water source, which includes but is not limited to tap water.

[0049] For some examples, see Figure 3 The heating water circuit 50 includes a heating return water circuit 52 and a return water branch 53 , and the return water branch 53 connects the heating outlet branch 51 and the heating return water circuit 52 .

[0050] The heating return water path 52 is a path for the return of the heating water after heat exchange with the indoor air. The heating outlet water branch 51 is a branch of the heating water before heat exchange with the indoor air. In other words, the water temperature in the heating return water path 52 is lower than the water temperature in the heating outlet water branch 51.

[0051] The water flow of the heating water outlet branch 51 exchanges heat with the main hot water channel 70 , and then flows back to the heating return water channel 52 through the return water branch 53 .

[0052] For example, see Figure 3 The heating water circuit 50 includes a heating water outlet circuit 54 , and heating water can flow from the heating return water circuit 52 to the heating water outlet circuit 54 .

[0053] Exemplarily, the hot water device also includes a heat exchanger, and the heating water outlet waterway 54 and the heating water return waterway 52 exchange heat through the heat exchanger. The heat exchanger obtains heat in any manner, and the temperature can be increased by heating with a gas heater or an electric heater.

[0054] Exemplarily, the heating water circuit 50 further includes a heating side branch 55 , and the heating side branch 55 connects the heating water outlet pipe 56 and the heating water outlet branch 51 .

[0055] Exemplarily, the water heater further includes a three-way valve located at the connection between the heating water outlet waterway 54 and the heating water outlet branch 51. The three-way valve includes a first interface, a second interface and a third interface, the first interface is connected to the heating water outlet branch 51, the second interface is connected to the heating water outlet waterway 54, and the third interface is connected to the heating water outlet pipe 56.

[0056] Exemplarily, the water heater can have three operating conditions:

[0057] The first working condition is that the third interface is closed, and the first interface and the second interface are opened. At this time, the heat of the hot water outlet branch comes from the heating outlet branch 51. The water flows through the heating return water channel 52 and enters the heat exchanger for heating, then passes through the heating outlet water channel 54 and enters the heating outlet branch 51, enters the heat exchange element 60 for heat exchange, enters the return water branch 53, and then flows into the heating return water channel 52, forming a cycle;

[0058] The second working condition is that the first interface is closed, the second interface and the third interface are opened, and no hot water flows in the heating water outlet branch 51. At this time, the heat of the main hot water waterway 70 comes from external heating. After passing through the heating return waterway 52, the water flows into the heat exchanger for heating, and then flows out through the heating water outlet pipe 56.

[0059] The third working condition is that the first interface, the second interface and the third interface are all open. At this time, the heat of the total hot water circuit 70 comes from the heating water outlet branch 51. The water flows through the heating return water circuit 52 and enters the heat exchanger for heating, and then passes through the heating water outlet circuit 54 to enter the heating water outlet branch 51, enters the heat exchanger 60 for heat exchange, and then enters the return water branch 53, and then flows into the heating return water circuit 52 to form a cycle; at the same time, the water flows through the heating return water circuit 52 and enters the heat exchanger for heating, and then flows out through the heating outlet pipe 56.

[0060] For some examples, see Figure 3 The hot water device includes a water source waterway 80 , and all cold water mixed waterways 10 are connected to the water source waterway 80 .

[0061] The water source water channel 80 provides cold water to the cold water mixing water channel 10 to adjust the water temperature of the hot water outlet water channel 20 .

[0062] Exemplarily, the heating return water circuit 52 is connected to the water source circuit 80. The heating return water circuit 52 and the cold water mixing water circuit 10 share a water source, which can simplify the device and save the layout space of the hot water device.

[0063] For some examples, see Figure 3 The hot water device includes a thermometer 90 arranged in the water source waterway 80, and the thermometer 90 is located upstream of the connection between the cold water mixing waterway 10 and the water source waterway 80.

[0064] The thermometer 90 is used to measure the water temperature of the water source waterway 80, and can monitor the inlet water temperature in real time to adjust the heating power or the inlet water flow rate according to the inlet water temperature.

[0065] In some embodiments, the hot water device includes a housing 110 , and the cold water mixing water path 10 and the regulating valve 30 are both located in the housing 110 .

[0066] Exemplarily, all the cold water mixing water circuits 10 and all the regulating valves 30 are located in the housing 110 .

[0067] The cold water mixing water channel 10 and the regulating valve 30 are protected in the housing 110, which can protect the structure. For example, when the cold water mixing water channel 10 transmits water through the water pipe, the housing 110 can protect the water pipe from being corroded by the external environment, and can also beautify the appearance of the water heater.

[0068] Exemplarily, the water heater comprises a housing 110, and the hot water outlet waterway 20 is located in the housing 110. The housing 110 can protect the water pipe that conveys the water flow.

[0069] The various embodiments / implementations provided in this application can be combined with each other without causing any contradiction.

[0070] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water heating device, characterized in that: include: Cold water mixed water circuit; At least two hot water outlet waterways, at least one of the hot water outlet waterways being connected to one of the cold water mixing waterways; A regulating valve, each of the cold water mixing water channels is provided with at least one regulating valve, and the regulating valve is used to regulate the cold water flow rate of the cold water mixing water channel.

2. The water heater according to claim 1, characterized in that: The hot water device includes at least two temperature detection components, at least one of which is arranged downstream of the connection between each hot water outlet waterway and the cold water mixing waterway, and the regulating valve adjusts the cold water flow rate according to the water temperature detected by the temperature detection component.

3. The water heater according to claim 1, characterized in that: The regulating valve is a servo bypass valve.

4. The water heater according to claim 1, characterized in that: The hot water device comprises a heating water circuit, and the hot water outlet water circuit exchanges heat with the heating water circuit.

5. The water heater according to claim 4, characterized in that: The hot water device includes a heat exchanger and a main hot water water circuit, the heating water circuit includes a heating water outlet branch, all the hot water outlet water circuits are connected to the main hot water water circuit, and the main hot water water circuit and the heating water outlet branches are in contact with the heat exchanger.

6. The water heater according to claim 5, characterized in that: The hot water device includes a water source waterway, and the water source waterway is communicated with the upstream end of the main hot water waterway.

7. The water heater according to claim 5, characterized in that: The heating water circuit includes a heating return water circuit and a return water branch, and the return water branch connects the heating outlet branch and the heating return water circuit.

8. The water heater according to claim 1, characterized in that: The hot water device comprises a water source waterway, and all the cold water and mixed water waterways are connected to the water source waterway.

9. The water heater according to claim 8, characterized in that: The hot water device includes a temperature detector arranged in the water source waterway, and the temperature detector is located upstream of the connection between the cold water mixing waterway and the water source waterway.

10. The water heater according to any one of claims 1 to 9, characterized in that: The hot water device comprises a shell, and the cold water mixing water channel and the regulating valve are both located in the shell.

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