Heating system and method for controlling the same

Abstract

This specification relates to the field of water heating technology, specifically disclosing a heating system and its control method. The system includes: a heat exchange device comprising a first flow channel, a second flow channel, and a third flow channel isolated from each other; the heat exchange medium in the first flow channel can exchange heat with the heat exchange medium in the second flow channel, and the heat exchange medium in the second flow channel can exchange heat with the heat exchange medium in the third flow channel; a first heat source, the outlet of which is connected to the inlet of the first flow channel; the inlet of the first heat source is connected to the outlet of the first flow channel; a second heat source, the outlet of which is connected to the inlet of the second flow channel; the inlet of the second heat source is connected to the outlet of the second flow channel; a flow regulating device, a pipeline disposed between the outlet and inlet of the second heat source, for regulating the flow rate of the heat exchange medium flowing in the second flow channel; and the heat exchange medium in the third flow channel for supplying heat to hot water terminals and / or heating terminals. The above solution can meet the user's water and / or heating needs.

Description

Technical Field

[0001] This specification relates to the technical field of water heating devices, and in particular to a heating system and its control method. Background Technology

[0002] In daily household life, there are various energy sources to provide users with hot water and heating. Combining energy conservation and emission reduction with market demand, an integrated solution is needed to address the issue of diverse energy supply.

[0003] In existing technologies, a boiler-plus-water-tank solution is typically used to supply hot water and heating to users. However, this solution has drawbacks such as large water tank volume, complex installation, high cost, and the presence of Legionella bacteria.

[0004] Therefore, a simple, highly integrated multi-energy complementary solution is needed to meet users' large water consumption and heating needs.

[0005] There is currently no effective solution to the above problems. Summary of the Invention

[0006] This specification provides a heating system and its control method to meet users' large water consumption and heating needs.

[0007] This specification provides an embodiment of a heating system, including:

[0008] A heat exchange device includes a first flow channel, a second flow channel, and a third flow channel that are isolated from each other; the heat exchange medium flowing in the first flow channel can exchange heat with the heat exchange medium flowing in the second flow channel, and the heat exchange medium flowing in the second flow channel can exchange heat with the heat exchange medium flowing in the third flow channel.

[0009] A first heat source, the outlet of which is connected to the inlet of the first flow channel; the inlet of the first heat source is connected to the outlet of the first flow channel.

[0010] A second heat source, the outlet of which is connected to the inlet of the second flow channel; and the inlet of the second heat source is connected to the outlet of the second flow channel.

[0011] A flow regulating device is provided in the pipeline between the outlet and the inlet of the second heat source, and the flow regulating device is used to regulate the flow rate of the heat exchange medium flowing in the second flow channel.

[0012] The heat exchange medium flowing in the third channel is used to supply heat to the hot water terminal and / or the heating terminal.

[0013] In one embodiment, the heating system further includes a first connecting pipe, one end of which is connected to a first pipeline between the inlet of the second flow channel and the outlet of the second heat source, and the other end of which is connected to a second pipeline between the outlet of the second flow channel and the inlet of the second heat source.

[0014] The flow regulating device is located at the first connection point between the first connecting pipe and the first pipeline.

[0015] Alternatively, the flow regulating device may be located at the second connection point between the first connecting pipe and the second pipeline.

[0016] In one embodiment, the flow regulating device is a first three-way valve, with its first end connected to the outlet of the second heat source, its second end connected to the inlet of the second flow channel, and its third end connected to one end of the first connecting pipe; or, the first end of the first three-way valve is connected to the inlet of the second heat source, its second end is connected to the outlet of the second flow channel, and its third end is connected to the other end of the first connecting pipe.

[0017] In one embodiment, the first three-way valve can regulate the flow rate relationship between the fluid flowing in the first connecting pipe and the second flow channel.

[0018] In one embodiment, the heating system further includes a first connecting pipe, one end of which is connected to a first pipeline between the inlet of the second flow channel and the outlet of the second heat source, and the other end of which is connected to a second pipeline between the outlet of the second flow channel and the inlet of the second heat source.

[0019] The flow regulating device is installed on the first connecting pipe;

[0020] Alternatively, the flow regulating device may be installed on the pipeline between one end of the first connecting pipe and the inlet of the second flow channel;

[0021] Alternatively, the flow regulating device may be installed on the pipeline between the other end of the first connecting pipe and the outlet of the second flow channel.

[0022] In one embodiment, the flow regulating device is a first solenoid valve, which can regulate the flow rate of fluid flowing through the first connecting pipe or regulate the flow rate of fluid flowing in the second flow channel.

[0023] In one embodiment, the flow regulating device includes a variable frequency water pump.

[0024] In one embodiment, the heat exchange device includes a first heat exchanger and a second heat exchanger that are independent of each other;

[0025] The first heat exchanger includes a first flow channel and a portion of a second flow channel that are isolated from each other, and the heat exchange medium flowing in the first flow channel and the heat exchange medium flowing in the second flow channel can exchange heat.

[0026] The second heat exchanger includes a second flow channel and a third flow channel that are isolated from each other, wherein the heat exchange medium flowing in the second flow channel and the heat exchange medium flowing in the third flow channel can exchange heat.

[0027] In one embodiment, the heat exchange device includes an integrated three-channel plate heat exchanger.

[0028] In one embodiment, the three-channel plate heat exchanger includes at least a first plate, a second plate, a third plate, and a fourth plate; the first plate and the second plate are arranged adjacent to each other; the second plate and the third plate are arranged adjacent to each other, and the third plate and the fourth plate are arranged adjacent to each other; the first plate and the second plate are sealed together to form a first cavity between the first plate and the second plate; the second plate and the third plate are sealed together to form a second cavity between the second plate and the third plate; the third plate and the fourth plate are sealed together to form a third cavity between the third plate and the fourth plate.

[0029] In one embodiment, the first cavity constitutes the first flow channel; the second cavity constitutes the second flow channel; and the third cavity constitutes the third flow channel.

[0030] The heat exchange medium flowing in the first cavity can exchange heat with the heat exchange medium flowing in the second cavity, and the heat exchange medium flowing in the second cavity can exchange heat with the heat exchange medium flowing in the third cavity.

[0031] In one embodiment, the three-channel plate heat exchanger further includes a plurality of heat exchange plates, which are arranged above the first plate along a stacking direction to form at least one fourth cavity and at least one fifth cavity arranged in an alternating manner. The fourth cavity communicates with the first cavity to form a portion of the first flow channel, and the fifth cavity communicates with the second cavity to form a portion of the second flow channel. The first plate and the nearest heat exchange plate form the fourth cavity or the fifth cavity.

[0032] And / or, the plurality of heat exchange plates are arranged along the stacking direction below the fourth plate to form at least one sixth cavity and at least one seventh cavity in an alternating arrangement, the sixth cavity communicating with the second cavity to form a portion of the second flow channel, the seventh cavity communicating with the third cavity to form a portion of the third flow channel, and the fourth plate and the nearest heat exchange plate forming the sixth cavity or the seventh cavity.

[0033] In one embodiment, the first cavity is adjacent to the fifth cavity, and the heat exchange medium flowing in the first cavity can exchange heat with the heat exchange medium flowing in the fifth cavity, and the heat exchange medium flowing in the fourth cavity can exchange heat with the heat exchange medium flowing in the fifth cavity.

[0034] And / or, the third cavity is adjacent to the sixth cavity, the heat exchange medium flowing in the sixth cavity can exchange heat with the heat exchange medium flowing in the third cavity, and the heat exchange medium flowing in the sixth cavity can exchange heat with the heat exchange medium flowing in the seventh cavity.

[0035] In one embodiment, the three-channel plate heat exchanger further includes a first connecting portion disposed within the third cavity, wherein the second cavity and the sixth cavity are connected through the first connecting portion; or

[0036] The three-channel plate heat exchanger further includes a second connecting portion disposed within the first cavity, and the second cavity is connected to the fifth cavity through the second connecting portion.

[0037] In one embodiment, the heating system further includes a housing for housing the heat exchange device, wherein the flow regulating device and the first connecting pipe are both disposed within the housing.

[0038] In one embodiment, the housing is provided with a plurality of openings, and the pipes located inside the housing are detachably connected to the inlet and outlet of the first heat source and / or the second heat source through the openings.

[0039] In one embodiment, the heat exchange medium flowing in the third channel is used to supply heat to one of the hot water terminal and the heating terminal;

[0040] The heating system further includes a first interface and a second interface, the first interface and the second interface being used to communicate with one of the hot water terminal and the heating terminal, and the first interface and the second interface being located on the first pipeline between the outlet of the second heat source and the first connection point.

[0041] In one embodiment, both the first interface and the second interface are tee interfaces.

[0042] In one embodiment, the first interface or the second interface is a second three-way valve with flow regulation function, which is used to regulate the flow rate of liquid flowing through the other end of the hot water terminal and the heating terminal, and the flow rate of liquid flowing through the first pipeline between the first interface and the second interface.

[0043] In one embodiment, the heating system further includes a second solenoid valve and a third solenoid valve, which cooperate to regulate the flow rate of liquid flowing through the other of the hot water terminal and the heating terminal, and the flow rate of liquid flowing through the first pipeline between the first interface and the second interface. The second solenoid valve is disposed on the pipeline between the first interface and the second interface.

[0044] The third solenoid valve is installed on the pipeline between the first interface and another of the hot water terminal and the heating terminal; or...

[0045] The third solenoid valve is installed on the pipeline between the second interface and one of the hot water terminal and the heating terminal.

[0046] In one embodiment, the heating system further includes a second connecting pipe, the inlet of which is connected to the inlet of the third flow channel, and the outlet of which is connected to the outlet of the third flow channel.

[0047] In one embodiment, the heating system further includes a fourth solenoid valve, which is disposed on the second connecting pipe.

[0048] In one embodiment, the flow regulating device is disposed inside the second heat source.

[0049] In one embodiment, the flow regulating device is set independently of the second heat source and the heat exchange device.

[0050] In one embodiment, the heating system further includes:

[0051] A first temperature sensor is located at or near the outlet of the second flow channel; and / or

[0052] A second temperature sensor is located at or near the inlet of the second flow channel.

[0053] In one embodiment, the heating system further includes:

[0054] A third temperature sensor, located at or near the outlet of the second heat source; and / or

[0055] A fourth temperature sensor is located at or near the inlet of the second heat source.

[0056] In one embodiment, the heating system further includes:

[0057] A fifth temperature sensor, wherein the fifth temperature sensor is located at or near the inlet of the third flow channel; and / or,

[0058] A sixth temperature sensor, which is located at or near the outlet of the third flow channel.

[0059] In one embodiment, the heating system further includes:

[0060] A flow sensor, which is located at or near the inlet of the third flow channel, or at or near the outlet of the third flow channel.

[0061] In one embodiment, the heating system further includes:

[0062] A seventh temperature sensor is disposed between the outlet of the first heat source and the inlet of the first flow channel; and / or

[0063] A fifth solenoid valve is disposed at the inlet or outlet of the first flow channel.

[0064] In one embodiment, the first heat source includes at least one of the following: a solar water heating device, a heat pump, an electric water heating device, or a central heating system; and / or

[0065] The second heat source includes at least one of the following: gas-fired water heater, electric water heater, solar water heater, heat pump, or central heating.

[0066] This specification also provides a heating system control method, applicable to the heating system described in any of the above embodiments, the control method comprising:

[0067] The set temperature of the second heat source and the first temperature data are obtained; the first temperature data is the temperature data of the heat exchange medium detected by the first temperature sensor located at or near the outlet of the second flow channel.

[0068] Based on the set temperature of the second heat source and the first temperature data, the flow rate regulating device adjusts the flow rate of the heat exchange medium flowing in the second flow channel.

[0069] In one embodiment, controlling the flow regulating device to adjust the flow rate of the heat exchange medium flowing in the second flow channel according to the set temperature of the second heat source and the first temperature data includes:

[0070] Based on the first temperature data, determine whether the temperature of the heat exchange medium flowing out of the outlet of the second flow channel is greater than the first set temperature, wherein the first set temperature is greater than or equal to the set temperature of the second heat source.

[0071] If the temperature of the heat exchange medium flowing out of the outlet of the second flow channel is determined to be greater than the first set temperature, the flow regulating device is controlled to reduce the flow rate of the heat exchange medium flowing in the second flow channel.

[0072] In one embodiment, the heating system further includes a first connecting pipe, one end of which is connected to a first pipeline between the inlet of the second flow channel and the outlet of the second heat source, and the other end of which is connected to a second pipeline between the outlet of the second flow channel and the inlet of the second heat source; the heat exchange medium flowing in the third flow channel is used to supply heat to one of the hot water terminal and the heating terminal.

[0073] The heating system further includes: a first interface and a second interface, the first interface and the second interface being used to connect to one of the hot water terminal and the heating terminal, and the first interface and the second interface being located on the first pipeline between the outlet of the second heat source and the first connection point;

[0074] Accordingly, based on the set temperature of the second heat source and the first temperature data, the flow regulating device adjusts the flow rate of the heat exchange medium flowing in the second flow channel, including:

[0075] When the first interface and the second interface are connected to one of the hot water terminal and the heating terminal, the temperature of the heat exchange medium flowing out of the outlet of the second flow channel is determined according to the first temperature data. The first set temperature is greater than or equal to the set temperature of the second heat source.

[0076] If the temperature of the heat exchange medium flowing out of the outlet of the second flow channel is determined to be greater than the first set temperature, the flow regulating device is controlled to reduce the flow rate of the heat exchange medium flowing in the second flow channel and increase the flow rate of the heat exchange medium flowing in the first connecting pipe.

[0077] This specification also provides a heating system control method, applicable to the heating system described in any of the above embodiments, the control method comprising:

[0078] Acquire first temperature data and second temperature data; the first temperature data is the temperature data of the heat exchange medium detected by a first temperature sensor located at or near the outlet of the second flow channel; the second temperature data is the temperature data of the heat exchange medium detected by a second temperature sensor located at or near the inlet of the second flow channel.

[0079] Based on the first temperature data and the second temperature data, determine whether the temperature of the heat exchange medium at the inlet of the second flow channel is higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel;

[0080] If the temperature of the heat exchange medium at the inlet of the second flow channel is determined to be higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel, the flow regulating device is controlled to reduce the flow rate of the heat exchange medium flowing in the second flow channel to a minimum.

[0081] In one embodiment, the heating system further includes a first connecting pipe, one end of which is connected to a first pipeline between the inlet of the second flow channel and the outlet of the second heat source, and the other end of which is connected to a second pipeline between the outlet of the second flow channel and the inlet of the second heat source; the heat exchange medium flowing in the third flow channel is used to supply heat to one of the hot water terminal and the heating terminal.

[0082] The heating system further includes: a first interface and a second interface, the first interface and the second interface being used to connect to one of the hot water terminal and the heating terminal, and the first interface and the second interface being located on the first pipeline between the outlet of the second heat source and the first connection point;

[0083] Accordingly, based on the set temperature of the second heat source and the first temperature data, the flow regulating device adjusts the flow rate of the heat exchange medium flowing in the second flow channel, including:

[0084] When the first interface and the second interface are connected to one of the hot water terminal and the heating terminal, the temperature of the heat exchange medium at the inlet of the second flow channel is determined to be higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel based on the first temperature data and the second temperature data.

[0085] If the temperature of the heat exchange medium at the inlet of the second flow channel is determined to be higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel, the flow regulating device is controlled to reduce the flow rate of the heat exchange medium flowing in the second flow channel to a minimum, and to increase the flow rate of the heat exchange medium flowing in the first connecting pipe.

[0086] This specification also provides a computer device, including a processor and a memory for storing processor-executable instructions, wherein the processor executes the instructions to implement the steps of the heating system control method described in any of the above embodiments.

[0087] This specification also provides a computer-readable storage medium storing computer instructions that, when executed, implement the steps of the heating system control method described in any of the above embodiments.

[0088] The technical solution in this specification has the following significant advantages:

[0089] The heating system in this embodiment of the specification, by setting up a heat exchange device, allows the heat exchange medium flowing from the first heat source to flow into the first channel of the heat exchange device, and the heat exchange medium flowing from the second heat source to flow into the second channel of the heat exchange device. The third channel can supply heat to the domestic water required by the heating or hot water terminals. Since heat exchange can occur between the first and second channels of the heat exchange device, and also between the second and third channels, the dual heat sources can be integrated and coordinated to heat domestic water or heating water. Furthermore, by setting up a flow regulation device, the flow rate of the heat exchange medium flowing in the second channel can be adjusted, thereby providing users with a large volume of healthy and constant-temperature domestic hot water according to user needs or system settings, and meeting users' heating needs in an energy-efficient and comfortable manner.

[0090] Specific embodiments of the invention are disclosed in detail below with reference to the description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0091] It should be emphasized that the term "comprising / including" as used herein refers to the presence of a feature, part, step, or component, but does not exclude the presence or addition of one or more other features, parts, steps, or components. Attached Figure Description

[0092] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances. In the drawings:

[0093] Figure 1 A schematic diagram of the heating system in one embodiment of this specification is shown;

[0094] Figure 2 A schematic diagram of the heating system in one embodiment of this specification is shown;

[0095] Figure 3 A schematic diagram of the heating system in one embodiment of this specification is shown;

[0096] Figure 4 A schematic diagram of the heating system in one embodiment of this specification is shown;

[0097] Figure 5 A schematic diagram of the heating system in one embodiment of this specification is shown;

[0098] Figure 6 A schematic diagram of the heating system in one embodiment of this specification is shown;

[0099] Figure 7 A schematic diagram of the heating system in one embodiment of this specification is shown;

[0100] Figure 8 A cross-sectional schematic diagram of a three-channel plate heat exchanger in one embodiment of this specification is shown;

[0101] Figure 9 A cross-sectional schematic diagram of a three-channel plate heat exchanger in one embodiment of this specification is shown;

[0102] Figure 10 A cross-sectional schematic diagram of a three-channel plate heat exchanger in one embodiment of this specification is shown;

[0103] Figure 11 A schematic diagram of the heating system in one embodiment of this specification is shown;

[0104] Figure 12 A schematic diagram of the heating system in one embodiment of this specification is shown;

[0105] Figure 13 A schematic diagram of the heating system in one embodiment of this specification is shown;

[0106] Figure 14 A schematic diagram of the heating system in one embodiment of this specification is shown;

[0107] Figure 15 A schematic diagram of the heating system in one embodiment of this specification is shown;

[0108] Figure 16 A schematic diagram of the heating system in one embodiment of this specification is shown;

[0109] Figure 17 A schematic diagram of the heating system in one embodiment of this specification is shown;

[0110] Figure 18 A flowchart of a heating system control method according to one embodiment of this specification is shown;

[0111] Figure 19 A flowchart of a heating system control method according to one embodiment of this specification is shown.

[0112] The reference numerals in the above figures are as follows:

[0113] 10. Heat exchanger; 11. First flow channel; 12. Second flow channel; 13. Third flow channel; 15. Shell; 101. First plate; 102. Second plate; 103. Third plate; 104. Fourth plate; 105. Multiple heat exchange plates; 110. First chamber; 120. Second chamber; 130. Third chamber; 140. Fourth chamber; 150. Fifth chamber; 160. Sixth chamber; 170. Seventh chamber; 133. First connecting part; 113. Second connecting part; 20. First heat source; 30. Second heat source; 40. Flow regulating device; 41. Variable frequency water pump; 42. First three-way valve; 43. First solenoid valve; 50. Hot water Terminal and / or heating terminal; 51. One of the hot water terminal and / or heating terminal; 52. The other of the hot water terminal and / or heating terminal; 521. First interface; 522. Second interface; 523. Second solenoid valve; 524. Third solenoid valve; 60. First connecting pipe; 70. Second connecting pipe; 71. Fourth solenoid valve; 81. First temperature sensor; 82. Second temperature sensor; 83. Third temperature sensor; 84. Fourth temperature sensor; 85. Fifth temperature sensor; 86. Sixth temperature sensor; 87. Seventh temperature sensor; 88. Fifth solenoid valve; 89. Flow sensor; 90. External water source. Detailed Implementation

[0114] The principles and spirit of this specification will now be described with reference to several exemplary embodiments. It should be understood that these embodiments are given merely to enable those skilled in the art to better understand and implement this specification, and are not intended to limit the scope of this specification in any way. Rather, these embodiments are provided to make this disclosure more thorough and complete, and to fully convey the scope of this disclosure to those skilled in the art.

[0115] Those skilled in the art will recognize that the embodiments described in this specification can be implemented as a system, apparatus, method, or computer program product. Therefore, the disclosure of this specification can be specifically implemented in the following forms: entirely hardware, entirely software (including firmware, resident software, microcode, etc.), or a combination of hardware and software.

[0116] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, all of which should be considered within the scope of the invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "connected" should be interpreted broadly, for example, they can refer to mechanical or electrical connections, or internal communication between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0117] 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 specification belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this specification. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0118] This specification provides an example of a heating system. Please refer to... Figures 1 to 4 This diagram illustrates the structure of the heating system as described in the embodiments of this specification. Figure 1 As shown, the heating system may include: a heat exchange device 10, a first heat source 20, a second heat source 30, and a flow regulating device 40.

[0119] The heat exchange device 10 may include a first flow channel 11, a second flow channel 12, and a third flow channel 13 that are isolated from each other. The heat exchange medium flowing in the first flow channel 11 can exchange heat with the heat exchange medium flowing in the second flow channel 12, and the heat exchange medium flowing in the second flow channel 12 can exchange heat with the heat exchange medium flowing in the third flow channel 13.

[0120] The outlet of the first heat source 20 is connected to the inlet of the first flow channel 11. The inlet of the first heat source 20 is connected to the outlet of the first flow channel 11. The heat exchange medium heated by the first heat source 20 can flow from the outlet of the first heat source 20 into the first flow channel 11 and then return to the inlet of the first heat source 20.

[0121] The outlet of the second heat source 30 is connected to the inlet of the second flow channel 12. The inlet of the second heat source 30 is connected to the outlet of the second flow channel 12. The heat exchange medium heated by the second heat source 30 can flow from the outlet of the second heat source 30 into the second flow channel 11 and then return to the inlet of the second heat source 30.

[0122] The flow regulating device 40 can be installed in the pipeline between the outlet and the inlet of the second heat source 30. The flow regulating device 40 can be used to regulate the flow rate of the heat exchange medium flowing in the second flow channel 12. The flow regulating device can control the flow rate of the heat exchange medium flowing into the second flow channel from the outlet of the second heat source.

[0123] The heat exchange medium flowing in the third flow channel 13 can be used to supply heat to the hot water terminal and / or heating terminal 50. In one embodiment, the hot water terminal can refer to a domestic water device, and the heating terminal can refer to a heating device. The third flow channel 13 can heat the heat exchange medium flowing through it by exchanging heat with the second flow channel 12. The heat exchange medium flowing in the third flow channel can be domestic water or heating water.

[0124] In the above embodiments, by setting up a heat exchange device, the heat exchange medium flowing out of the first heat source flows into the first channel of the heat exchange device, the heat exchange medium flowing out of the second heat source flows into the second channel of the heat exchange device, and the third channel can supply heat to the domestic water required by the heating or hot water terminal. Since heat exchange can occur between the first and second channels of the heat exchange device, and between the second and third channels, the dual heat sources can be integrated and scheduled to heat domestic water or heating water. Furthermore, by setting up a flow regulation device, the flow rate of the heat exchange medium flowing in the second channel can be adjusted, thereby providing users with a large volume of healthy and constant-temperature domestic hot water according to user needs or system settings, and meeting users' heating needs in an energy-saving and comfortable manner.

[0125] like Figure 2 As shown, in some embodiments of this specification, the flow regulating device 40 may include a variable frequency water pump 41. In this embodiment, the flow rate of the heat exchange medium flowing in the second flow channel can be adjusted by adjusting the rotational speed of the variable frequency water pump.

[0126] like Figure 3 and Figure 4As shown, in some embodiments of this specification, the heating system may further include a first connecting pipe 60. One end of the first connecting pipe 60 is connected to a first conduit between the inlet of the second flow channel 12 and the outlet of the second heat source 30. The other end of the first connecting pipe 60 is connected to a second conduit between the outlet of the second flow channel 12 and the inlet of the second heat source 30. In one embodiment, a flow regulating device may be located at a first connection between the first connecting pipe 60 and the first conduit. In another embodiment, the flow regulating device may be located at a second connection between the first connecting pipe 60 and the second conduit.

[0127] like Figure 3 As shown, in some embodiments of this specification, the flow regulating device 40 is a first three-way valve 42. The first end of the first three-way valve 42 is connected to the outlet of the second heat source 30, the second end of the first three-way valve 42 is connected to the inlet of the second flow channel 12, and the third end of the first three-way valve 42 is connected to one end of the first connecting pipe 60.

[0128] like Figure 4 As shown, in some embodiments of this specification, the flow regulating device 40 is a first three-way valve 43. The first end of the first three-way valve 43 is connected to the inlet of the second heat source 30, the second end of the first three-way valve 43 is connected to the outlet of the second flow channel 12, and the third end of the first three-way valve 43 is connected to the other end of the first connecting pipe 60.

[0129] In some embodiments of this specification, the first three-way valve 43 can regulate the flow rate relationship between the fluid flowing in the first connecting pipe 60 and the fluid flowing in the second flow channel 12.

[0130] Please refer to Figures 5 to 7 In some embodiments of this specification, the heating system may further include a first connecting pipe 60. For example... Figures 5 to 7 As shown, one end of the first connecting pipe 60 is connected to a first conduit between the inlet of the second flow channel 12 and the outlet of the second heat source 30. The other end of the first connecting pipe 60 is connected to a second conduit between the outlet of the second flow channel 12 and the inlet of the second heat source 30. In one embodiment, a flow regulating device is disposed on the first connecting pipe 60. In another embodiment, the flow regulating device is disposed on the conduit between one end of the first connecting pipe 60 and the inlet of the second flow channel 12. In yet another embodiment, the flow regulating device is disposed on the conduit between the other end of the first connecting pipe 60 and the outlet of the second flow channel 12.

[0131] In some embodiments of this specification, the flow regulating device 40 may be a first solenoid valve, capable of regulating the flow rate of fluid flowing through the first connecting pipe 60 or regulating the flow rate of fluid flowing through the second flow channel 12. The first solenoid valve may be an adjustable-opening solenoid valve or a solenoid valve with only opening and closing functions.

[0132] In one embodiment, such as Figure 5 As shown, the first solenoid valve 43 can be installed on the first connecting pipe 60 and can regulate the flow rate of the fluid flowing through the first connecting pipe 60.

[0133] In one embodiment, such as Figure 6 As shown, the first solenoid valve 43 can be installed on the pipeline between one end of the first connecting pipe 60 and the inlet of the second flow channel 12, and can regulate the flow rate of the fluid flowing through the second flow channel 12.

[0134] In one embodiment, such as Figure 7 As shown, the first solenoid valve 43 can be installed on the pipeline between the other end of the first connecting pipe 60 and the outlet of the second flow channel 12, and can regulate the flow rate of the fluid flowing through the second flow channel 12.

[0135] In some embodiments of this specification, the heat exchange device 10 may include a first heat exchanger and a second heat exchanger that are independent of each other. The first heat exchanger may include a first flow channel 11 and a portion of a second flow channel 12 that are isolated from each other, and the heat exchange medium flowing in the first flow channel 11 can exchange heat with the heat exchange medium flowing in the second flow channel 12. The second heat exchanger may include another portion of the second flow channel 12 and a third flow channel 13 that are isolated from each other, and the heat exchange medium flowing in the other portion of the second flow channel 12 can exchange heat with the heat exchange medium flowing in the third flow channel 13. The portion of the second flow channel in the first heat exchanger may or may not be connected to the other portion of the second flow channel in the second heat exchanger.

[0136] In some embodiments of this specification, the heat exchange device 10 may include an integrated three-channel plate heat exchanger. The three-channel plate heat exchanger may include a first channel 11, a second channel 12, and a third channel 13 that are isolated from each other. Heat exchange occurs between the heat exchange medium flowing in the first channel 11 and the heat exchange medium flowing in the second channel 12. Heat exchange also occurs between the heat exchange medium flowing in the second channel 12 and the heat exchange medium flowing in the third channel 13. By using an integrated three-channel plate heat exchanger, the integration of the heat exchange device can be improved, its size reduced, its heat exchange efficiency increased, and its system layout and installation facilitated.

[0137] Please refer to Figure 8 The diagram shows a schematic representation of the three-channel plate heat exchanger in this embodiment. Figure 8As shown, in some embodiments of this specification, a three-channel plate heat exchanger may include at least a first plate 101, a second plate 102, a third plate 103, and a fourth plate 104. The first plate 101 and the second plate 102 are arranged adjacent to each other. The second plate 102 and the third plate 103 are arranged adjacent to each other, and the third plate 103 and the fourth plate 104 are arranged adjacent to each other. The first plate 101 and the second plate 102 are sealed together, forming a first cavity 110 between them. The second plate 102 and the third plate 103 are sealed together, forming a second cavity 120 between them. The third plate 103 and the fourth plate 104 are sealed together, forming a third cavity 130 between them.

[0138] In some embodiments of this specification, the first cavity 110 constitutes the first flow channel 11. The second cavity 120 constitutes the second flow channel 12. The third cavity 130 constitutes the third flow channel 13. Figure 8 As shown, the heat exchange medium flowing in the first cavity 110 can exchange heat with the heat exchange medium flowing in the second cavity 120, and the heat exchange medium flowing in the second cavity 120 can exchange heat with the heat exchange medium flowing in the third cavity 130.

[0139] Please refer to Figure 9 and Figure 10 This diagram illustrates the structure of a three-channel plate heat exchanger as described in an embodiment of this specification. Figure 9 and Figure 10 As shown in some embodiments of this specification, the three-channel plate heat exchanger may further include a plurality of heat exchange plates 105. The plurality of heat exchange plates 105 may be arranged along a stacking direction above the first plate 101 to form at least one fourth cavity 140 and at least one fifth cavity 150 arranged in an alternating manner. The fourth cavity 140 communicates with the first cavity 110 to form a portion of the first flow channel 11. The fifth cavity 150 communicates with the second cavity 120 to form a portion of the second flow channel 12. The first plate 101 may form the fourth cavity 140 or the fifth cavity 150 with the nearest heat exchange plate 105.

[0140] In some embodiments of this specification, multiple heat exchange plates 105 may also be disposed below the fourth plate 104 along the stacking direction to form at least one sixth cavity 160 and at least one seventh cavity 170 arranged in an alternating manner. The sixth cavity 160 communicates with the second cavity 120 to form a portion of the second flow channel 12. The seventh cavity 170 communicates with the third cavity 130 to form a portion of the third flow channel 13. The fourth plate 104 may form the sixth cavity 160 or the seventh cavity 170 with the nearest heat exchange plate 105.

[0141] In the above embodiments, the plates in the heat exchanger can be placed horizontally, with the first plate 101, second plate 102, third plate 103, and fourth plate 104 arranged from top to bottom, and the stacking direction being vertical. Multiple heat exchange plates 105 can be arranged above the first plate 101 and / or below the fourth plate 104. It is understood that the plates in the heat exchanger can also be placed in any other direction; multiple heat exchange plates can be arranged along the stacking direction on the side closer to the first plate, or multiple heat exchange plates can be arranged along the stacking direction on the side closer to the fourth plate. This application does not limit the stacking direction.

[0142] like Figure 9 and Figure 10 As shown, in some embodiments of this specification, the first cavity 110 and the fifth cavity 150 are adjacent. The heat exchange medium flowing in the first cavity 110 and the heat exchange medium flowing in the fifth cavity 150 can exchange heat. The heat exchange medium flowing in the fourth cavity 140 and the heat exchange medium flowing in the fifth cavity 150 can exchange heat.

[0143] like Figure 9 and Figure 10 As shown, in some embodiments of this specification, the third cavity 130 and the sixth cavity 160 are adjacent. The heat exchange medium flowing in the sixth cavity 160 can exchange heat with the heat exchange medium flowing in the third cavity 130. The heat exchange medium flowing in the sixth cavity 160 can exchange heat with the heat exchange medium flowing in the seventh cavity 170.

[0144] like Figure 9 As shown in some embodiments of this specification, the three-channel plate heat exchanger may further include a first connecting portion 133 disposed within the third chamber 130. The second chamber 120 and the sixth chamber 160 are connected through the first connecting portion 133.

[0145] like Figure 9 As shown, in some embodiments of this specification, the flow direction of the heat exchange medium in the first cavity 110 and the fourth cavity 140 is opposite to the flow direction of the heat exchange medium in the second cavity 120 and the fifth cavity 150. The flow direction of the heat exchange medium in the second cavity 120 and the fifth cavity 150 is opposite to the flow direction of the heat exchange medium in the sixth cavity 160. The flow direction of the heat exchange medium in the sixth cavity 160 is opposite to the flow direction of the heat exchange medium in the third cavity 130 and the seventh cavity 170.

[0146] like Figure 10 As shown in some embodiments of this specification, the three-channel plate heat exchanger may further include a second connecting portion 113 disposed within the first chamber 110. The second chamber 120 and the fifth chamber 150 are connected through the second connecting portion 113.

[0147] like Figure 10As shown, in some embodiments of this specification, the flow direction of the heat exchange medium in the first cavity 110 and the fourth cavity 140 is opposite to the flow direction of the heat exchange medium in the fifth cavity 150. The flow direction of the heat exchange medium in the fifth cavity 150 is opposite to the flow direction of the heat exchange medium in the second cavity 120 and the sixth cavity 160. The flow direction of the heat exchange medium in the second cavity 120 and the sixth cavity 160 is opposite to the flow direction of the heat exchange medium in the third cavity 130 and the seventh cavity 170.

[0148] Please refer to Figure 1 In some embodiments of this specification, the heating system may further include a housing 15 for housing the heat exchanger 10. For example... Figure 1 As shown, the flow regulating device 40 can be housed within the housing. Figure 3 As shown, the first three-way valve 42 and the first connecting pipe 60 are both located inside the housing.

[0149] It is understood that, in some embodiments of this specification, the flow regulating device 40 may be disposed inside the second heat source 30.

[0150] In some embodiments of this specification, the flow regulating device 40 may be set independently of the second heat source 30 and the heat exchange device 10.

[0151] In some embodiments of this specification, the housing 15 may have multiple openings, and the pipes located inside the housing are detachably connected to the inlet and outlet of the first heat source 20 and / or the second heat source 30 through these openings. In this embodiment, the inlet and outlet of the first heat source 20 and / or the second heat source 30 may include their own connectors, or they may also include a portion of the pipes on the connectors.

[0152] Please refer to Figure 11 The diagram shows a schematic representation of the heating system in this embodiment. Figure 11 As shown in some embodiments of this specification, the heat exchange medium flowing within the third flow channel 13 can be used to supply heat to one of the terminals 51, namely the hot water terminal and the heating terminal 50. The heating system may further include a first interface 521 and a second interface 522. The first interface 521 and the second interface 522 can be used to communicate with the other terminal 52, namely the hot water terminal and the heating terminal. Both the first interface 521 and the second interface 522 are located on a first pipeline between the outlet of the second heat source 30 and the first connection point.

[0153] like Figure 11As shown, in some embodiments of this specification, both the first interface 521 and the second interface 522 are tee interfaces. The first interface 521 is used to connect the outlet of the second heat source 30, the inlet of the other end 52, and the inlet of the second flow channel 12. The second interface 522 is used to connect the outlet of the second heat source 30, the outlet of the other end 52, and the inlet of the second flow channel 12.

[0154] Please refer to Figure 12 and Figure 13 This diagram illustrates the structure of the heating system as described in the embodiments of this specification. Figure 12 and Figure 13 As shown, in some embodiments of this specification, the first interface 521 or the second interface 522 is a second three-way valve with flow regulation function. The second three-way valve is used to regulate the flow rate of liquid flowing through one of the hot water terminal and the heating terminal 52, and the flow rate of liquid flowing through the first pipeline between the first interface 521 and the second interface 522. Figure 12 As shown, the second interface 522 can be a second three-way valve with flow regulation function. For example... Figure 13 As shown, the first interface 521 can be a second three-way valve with flow regulation function.

[0155] In the above embodiments, by adjusting the opening of the second three-way valve, the flow rate of the liquid flowing out of the outlet of the second heat source through the other end of the hot water terminal and the heating terminal, as well as the flow rate of the liquid flowing through the first pipeline between the first interface and the second interface, can be adjusted.

[0156] Please refer to Figure 14 and Figure 15 This diagram illustrates the structure of the heating system as described in the embodiments of this specification. Figure 14 and Figure 15 As shown, in some embodiments of this specification, the heating system may further include a second solenoid valve 523 and a third solenoid valve 524. The second solenoid valve 523 and the third solenoid valve 524 can cooperate to regulate the flow rate of liquid flowing through one of the hot water terminals and the heating terminals 52, and the flow rate of liquid flowing through the first pipe between the first interface 521 and the second interface 522. Figure 14 and Figure 15 As shown, the second solenoid valve 523 is disposed on the pipeline between the first port 521 and the second port 522. Figure 15 As shown, the third solenoid valve 524 is installed on the pipeline between the first interface 521 and another terminal 52, either the hot water terminal or the heating terminal. Alternatively, as... Figure 14As shown, the third solenoid valve 524 is installed on the pipeline between the second interface 522 and one of the terminals 52 (hot water terminal or heating terminal). The second solenoid valve 523 and the third solenoid valve 524 can be solenoid valves with adjustable opening degree or solenoid valves with only a shut-off function.

[0157] In the above embodiments, by adjusting the opening or closing of the second solenoid valve and the third solenoid valve, the flow rate of the liquid flowing out of the second heat source outlet through another end and the flow rate of the liquid flowing through the first pipeline between the first interface and the second interface can be controlled.

[0158] In some embodiments of this specification, the heating system may further include a second connecting pipe 70, the inlet of which is connected to the inlet of the third flow channel 13. The outlet of the second connecting pipe 70 is connected to the outlet of the third flow channel 13.

[0159] In some embodiments of this specification, the heating system may further include a fourth solenoid valve 71. The fourth solenoid valve 71 may be disposed on the second connecting pipe 70. By providing the second connecting pipe and the fourth solenoid valve, the flow rate of the liquid flowing out of the third flow channel through the second connecting pipe can be adjusted.

[0160] Please refer to Figure 16 This diagram illustrates the structure of the heating system as described in the embodiments of this specification. Figure 16 As shown in some embodiments of this specification, the heating system may further include a first temperature sensor 81. The first temperature sensor 81 may be located at or near the outlet of the second flow channel 12 and may be used to detect the temperature of the liquid flowing out of the outlet of the second flow channel 12.

[0161] like Figure 16 As shown, in some embodiments of this specification, the heating system may further include a second temperature sensor 82. The second temperature sensor 82 is located at or near the inlet of the second flow channel 12 and can be used to measure the temperature of the liquid flowing into the second flow channel 12.

[0162] like Figure 16 As shown in some embodiments of this specification, the heating system may further include: a third temperature sensor 83, which is located at or near the outlet of the second heat source 30, for detecting the temperature of the liquid flowing out of the second heat source.

[0163] like Figure 16 As shown in some embodiments of this specification, the heating system may further include: a fourth temperature sensor 84, which is located at or near the inlet of the second heat source 30, for detecting the temperature of the liquid flowing into the second heat source.

[0164] like Figure 16As shown, in some embodiments of this specification, the heating system may further include: a fifth temperature sensor 85, which is located at or near the inlet of the third flow channel 13, for detecting the temperature of the liquid flowing into the third flow channel.

[0165] like Figure 16 As shown in some embodiments of this specification, the heating system may further include: a sixth temperature sensor 86, which is located at or near the outlet of the third flow channel 13, for detecting the temperature of the liquid flowing out of the third flow channel.

[0166] Please continue to refer to this. Figure 16 ,like Figure 16 As shown, in some embodiments of this specification, the heating system may further include a flow sensor 89. The flow sensor 89 may be located at or near the inlet of the third flow channel 13 (e.g., Figure 16 (as shown), or, located at or near the outlet of the third flow channel 13, for detecting the flow rate of liquid flowing through the third flow channel.

[0167] In some embodiments of this specification, the heating system may further include a seventh temperature sensor 87, which is disposed between the outlet of the first heat source 20 and the inlet of the first flow channel 11, for detecting the temperature of the liquid flowing out of the first heat source.

[0168] like Figure 16 As shown, in some embodiments of this specification, the heating system may further include a fifth solenoid valve 88. The fifth solenoid valve 88 is disposed at the inlet or outlet of the first flow channel 11 and can be used to control the flow rate of the liquid flowing from the first heat source into the first flow channel.

[0169] In some embodiments of this specification, the second heat source may include a controller. The first three-way valve (or the first solenoid valve, or a variable frequency water pump), the second three-way valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the fifth solenoid valve, the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor, the fifth temperature sensor, the sixth temperature sensor, the seventh temperature sensor, and / or the flow sensor in the above embodiments can be communicatively connected to the controller. The controller can receive temperature data and / or flow data, and control the opening degree, on / off state, or rotation speed of the first three-way valve (or the first solenoid valve, or the variable frequency water pump), the second three-way valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, and / or the fifth solenoid valve using the temperature data and / or flow data to meet the user's water and heating needs.

[0170] In some embodiments of this specification, the first heat source 20 may include at least one of the following: a solar water heating device, a heat pump, an electric water heating device, or a central heating system.

[0171] In some embodiments of this specification, the second heat source 30 may include at least one of the following: a gas-fired water heater, an electric water heater, a solar water heater, a heat pump, or a central heating system.

[0172] Please refer to Figure 17 This diagram illustrates the structure of the heating system as described in the embodiments of this specification. Figure 17 As shown, the first heat source 20 can be a solar water heating device, a heat pump, a district heating system, or an electric water heating device. The second heat source 30 can be a gas water heating device, an electric water heating device, a solar water heating device, a district heating system, or a heat pump. The water flowing out of the second heat source 30 can be diverted to the second flow channel 12 of the heat exchange device 10 and the heating terminal 52 (i.e., the heating equipment). The outlet and inlet of the third flow channel 13 can be connected to the hot water pipe and cold water pipe of the hot water terminal 51 (i.e., the domestic water device), respectively. The water flowing out of the external water source 90 can flow into the inlet of the third flow channel 13 and the cold water pipe of the hot water terminal 51, respectively. The water that has undergone heat exchange through the third flow channel 13 flows into the hot water pipe of the hot water terminal 51.

[0173] This specification also provides a heating system control method, which can be applied to the heating system described in any of the above embodiments. Figure 18 A flowchart of a heating system control method according to one embodiment of this specification is shown. While this specification provides method operation steps or apparatus structures as illustrated in the following embodiments or figures, more or fewer operation steps or module units may be included in the method or apparatus based on conventional or non-inventive effort. In steps or structures where there is no logically necessary causal relationship, the execution order of these steps or the module structure of the apparatus is not limited to the execution order or module structure described in the embodiments and figures of this specification. When the method or module structure is applied in actual devices or end products, it can be executed sequentially or in parallel (e.g., in a parallel processor or multi-threaded processing environment, or even a distributed processing environment) according to the method or module structure shown in the embodiments or figures.

[0174] Specifically, such as Figure 18 As shown, a heating system control method provided in one embodiment of this specification may include the following steps.

[0175] Step S181: Obtain the set temperature of the second heat source and the first temperature data; the first temperature data is the temperature data of the heat exchange medium detected by the first temperature sensor located at or near the outlet of the second flow channel.

[0176] The method in this embodiment can be applied to the heating system described in any of the above embodiments. In one embodiment, the method in this embodiment can be applied to a controller in a second heat source. The controller can acquire the set temperature and first temperature data of the second heat source.

[0177] The set temperature of the second heat source can be a user-preset temperature or a system default set temperature. In one embodiment, the liquid flowing out of the second heat source can enter a second flow channel to heat the liquid flowing in the third flow channel. In this case, the set temperature of the second heat source can be related to the set temperature of the liquid flowing in the third flow channel. In another embodiment, the liquid flowing out of the second heat source can flow into a heating terminal or a hot water terminal. In this case, the set temperature of the second heat source can be related to the set temperature of the heating water at the heating terminal or the set temperature of the hot water at the hot water terminal.

[0178] The first temperature data can be the temperature data of the heat exchange medium detected by a first temperature sensor located at or near the outlet of the second flow channel, which can characterize the temperature of the liquid flowing out of the outlet of the second flow channel.

[0179] Step S182: Based on the set temperature of the second heat source and the first temperature data, control the flow regulating device to adjust the flow rate of the heat exchange medium flowing in the second flow channel.

[0180] After obtaining the set temperature of the second heat source and the first temperature data, the flow rate of the heat exchange medium in the second flow channel can be adjusted by controlling the flow regulating device according to the set temperature of the second heat source and the first temperature data.

[0181] In one embodiment, if the temperature corresponding to the first temperature data is much higher than the set temperature of the second heat source, the flow rate of the heat exchange medium in the second flow channel can be reduced by the flow regulating device to avoid the water temperature flowing out of the third flow channel being too high, or to avoid the outlet temperature of the second heat source being too high.

[0182] In another embodiment, if the temperature corresponding to the first temperature data is much lower than the set temperature of the second heat source, the flow rate of the heat exchange medium in the second flow channel can be increased by controlling the flow regulating device to increase the water temperature flowing out of the third flow channel.

[0183] In this embodiment, the flow rate can be adjusted by regulating the speed of the variable frequency water pump or by adjusting the opening of the first solenoid valve or the first three-way valve.

[0184] In the above embodiments, the set temperature of the second heat source and the liquid temperature data flowing out of the outlet of the second flow channel in the heating system can be obtained, and the flow rate of the heat exchange medium flowing in the second flow channel can be adjusted based on the set temperature of the second heat source and the temperature at the outlet of the second flow channel to meet the user's water or heating needs.

[0185] In some embodiments of this specification, controlling the flow regulating device to adjust the flow rate of the heat exchange medium flowing in the second flow channel according to the set temperature of the second heat source and the first temperature data may include: determining whether the temperature of the heat exchange medium flowing out of the outlet of the second flow channel is greater than a first set temperature, wherein the first set temperature is greater than or equal to the set temperature of the second heat source; and, if it is determined that the temperature of the heat exchange medium flowing out of the outlet of the second flow channel is greater than the first set temperature, controlling the flow regulating device to reduce the flow rate of the heat exchange medium flowing in the second flow channel.

[0186] Specifically, the controller can determine whether the temperature of the heat exchange medium flowing out of the outlet of the second flow channel is greater than the first set temperature based on the first temperature data. The first set temperature can be greater than or equal to the set temperature of the second heat source. For example, if the set temperature of the second heat source is 40 degrees Celsius, the first set temperature can be set to 40-45 degrees Celsius. If it is determined that the temperature of the heat exchange medium flowing out of the outlet of the second flow channel is greater than the first set high temperature, the flow regulating device can be controlled to reduce the flow rate of the heat exchange medium flowing in the second flow channel.

[0187] In some embodiments of this specification, the heating system may further include a first connecting pipe, one end of which is connected to a first pipeline between the inlet of the second flow channel and the outlet of the second heat source, and the other end of which is connected to a second pipeline between the outlet of the second flow channel and the inlet of the second heat source. The heat exchange medium flowing in the third flow channel is used to supply heat to one of the hot water terminals and the heating terminals. The heating system may further include a first interface and a second interface, which are used to connect to the other of the hot water terminals and the heating terminals, and both the first interface and the second interface are located on the first pipeline between the outlet of the second heat source and the first connection point. Accordingly, based on the set temperature of the second heat source and the first temperature data, controlling the flow regulating device to adjust the flow rate of the heat exchange medium flowing in the second channel may include: when the first interface and the second interface are connected to one of the hot water terminal and the heating terminal, determining whether the temperature of the heat exchange medium flowing out of the outlet of the second channel is greater than the first set temperature, wherein the first set temperature is greater than or equal to the set temperature of the second heat source; if it is determined that the temperature of the heat exchange medium flowing out of the outlet of the second channel is greater than the first set temperature, controlling the flow regulating device to reduce the flow rate of the heat exchange medium flowing in the second channel and increase the flow rate of the heat exchange medium flowing in the first connecting pipe.

[0188] Specifically, when the inlet and outlet of the third flow channel are connected to the inlet and outlet of one of the hot water terminal and the heating terminal, and the first and second interfaces of the heating system are connected to the inlet and outlet of the other of the hot water terminal and the heating terminal, if the first temperature data indicates that the temperature of the heat exchange medium flowing out of the outlet of the second flow channel is greater than the first set temperature, the flow regulating device can be controlled to reduce the flow rate of the heat exchange medium flowing into the second flow channel and increase the flow rate of the heat exchange medium flowing in the first connecting pipe.

[0189] In one embodiment, the flow regulating device can be a first three-way valve. By adjusting the opening of the first three-way valve, the flow rate of the heat exchange medium flowing into the second flow channel is reduced, and more of the heat exchange medium flowing out of the second heat source outlet, as well as the heat exchange medium flowing out of the outlet of either the hot water terminal or the heating terminal, flows into the first connecting pipe to mix with the heat exchange medium flowing out of the second flow channel outlet, thereby lowering the temperature of the heat exchange medium at the inlet of the second heat source. In this way, when the temperature of the heat exchange medium flowing out of the first heat source is too high, the flow regulating device mixes the high-temperature heat exchange medium flowing out of the second flow channel with the low-temperature heat exchange medium flowing out of the outlet of either the hot water terminal or the heating terminal, thereby lowering the water temperature at the inlet of the second heat source and allowing the high-temperature water to be utilized.

[0190] This specification also provides a heating system control method, which can be applied to the heating system described in any of the above embodiments. Figure 19 A flowchart of a heating system control method according to an embodiment of this specification is shown. Specifically, as... Figure 19 As shown, a heating system control method provided in one embodiment of this specification may include the following steps.

[0191] Step S191: Obtain first temperature data and second temperature data; the first temperature data is the temperature data of the heat exchange medium detected by a first temperature sensor located at or near the outlet of the second flow channel; the second temperature data is the temperature data of the heat exchange medium detected by a second temperature sensor located at or near the inlet of the second flow channel.

[0192] The method in this embodiment can be applied to the heating system described in any of the above embodiments. In one embodiment, the method in this embodiment can be applied to a controller in a second heat source. The controller can acquire first temperature data and second temperature data.

[0193] The first temperature data can be the temperature data of the heat exchange medium detected by a first temperature sensor located at or near the outlet of the second flow channel, which can characterize the liquid temperature flowing out of the outlet of the second flow channel. Alternatively, the first temperature data can be the temperature data of the heat exchange medium detected by a second temperature sensor located at or near the inlet of the second flow channel, which can characterize the liquid temperature flowing out of the outlet of the second flow channel.

[0194] Step S192: Based on the first temperature data and the second temperature data, determine whether the temperature of the heat exchange medium at the inlet of the second flow channel is higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel.

[0195] Step S193: If it is determined that the temperature of the heat exchange medium at the inlet of the second flow channel is higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel, the flow regulating device is controlled to adjust the flow rate of the heat exchange medium flowing in the second flow channel to a minimum.

[0196] When no heat exchange medium flows in the third flow channel, the temperature of the heat exchange medium at the inlet of the second flow channel can be determined based on the first and second temperature data to be higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel. If the temperature of the heat exchange medium at the inlet of the second flow channel is determined to be higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel, it indicates that the temperature of the heat exchange medium flowing into the first flow channel from the first heat source is too low to heat the heat exchange medium in the second flow channel. Therefore, the flow regulating device can be controlled to reduce the flow rate of the heat exchange medium flowing in the second flow channel to a minimum. In one embodiment, the first solenoid valve can be controlled to close. In another embodiment, the port of the first three-way valve connected to the inlet of the second flow channel can be controlled to close or have its opening minimized.

[0197] In this embodiment, when the heat exchange medium flowing out of the second heat source flows into the second channel and its temperature drops instead of rising, it indicates that the temperature of the heat exchange medium flowing in the first channel is too low to heat the heat exchange medium flowing in the second channel. By controlling the flow regulating device, the flow rate of the heat exchange medium in the second channel can be reduced to a minimum to avoid heat loss.

[0198] In some embodiments of this specification, the heating system may further include a first connecting pipe, one end of which is connected to a first pipeline between the inlet of the second flow channel and the outlet of the second heat source, and the other end of which is connected to a second pipeline between the outlet of the second flow channel and the inlet of the second heat source. The heat exchange medium flowing in the third flow channel is used to supply heat to one of the hot water terminals and the heating terminals. The heating system may further include a first interface and a second interface, which are used to connect to the other of the hot water terminals and the heating terminals, and both the first interface and the second interface are located on the first pipeline between the outlet of the second heat source and the first connection point. Accordingly, based on the set temperature of the second heat source and the first temperature data, controlling the flow regulating device to adjust the flow rate of the heat exchange medium flowing in the second channel may include: when the first interface and the second interface are connected to one of the hot water terminal and the heating terminal, determining whether the temperature of the heat exchange medium at the inlet of the second channel is higher than or equal to the temperature of the heat exchange medium at the outlet of the second channel based on the first temperature data and the second temperature data; if it is determined that the temperature of the heat exchange medium at the inlet of the second channel is higher than or equal to the temperature of the heat exchange medium at the outlet of the second channel, controlling the flow regulating device to adjust the flow rate of the heat exchange medium flowing in the second channel to a minimum, and increasing the flow rate of the heat exchange medium flowing in the first connecting pipe.

[0199] Specifically, the inlet and outlet of the third flow channel are connected to the inlet and outlet of one of the hot water terminal and the heating terminal, and the first and second interfaces of the heating system are connected to the inlet and outlet of the other of the hot water terminal and the heating terminal. When it is determined that the temperature of the heat exchange medium at the inlet of the second flow channel is higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel, the flow regulating device can be controlled to reduce the flow rate of the heat exchange medium flowing in the second flow channel to a minimum, and increase the flow rate of the heat exchange medium flowing in the first connecting pipe. In one embodiment, the opening of the first three-way valve connected to the inlet of the second flow channel can be controlled to be closed or reduced to a minimum, and the opening of the first three-way valve connected to the first connecting pipe can be controlled to be open or increased, thereby increasing the flow rate of the heat exchange medium flowing in the first connecting pipe. In this embodiment, when the inlet temperature of the second flow channel is higher than or equal to the outlet temperature of the second flow channel, the flow rate of the heat exchange medium in the second flow channel can be reduced to a minimum by controlling the flow regulating device to avoid heat loss. The low-temperature heat exchange medium flowing out of the other of the hot water terminal and the heating terminal can flow into the second heat source through the first flow pipe for heating, so as to supply heat to the other of the hot water terminal and the heating terminal.

[0200] In some embodiments of this specification, one of the terminals, the hot water terminal and the heating terminal, is a hot water terminal. Correspondingly, the control method may further include: when the hot water terminal is operating, acquiring a set hot water temperature, fifth temperature data, and flow rate data; the hot water terminal includes a cold water pipe and a hot water pipe; the hot water pipe is connected to the outlet of the third flow channel; the cold water pipe is connected to the inlet of the third flow channel and a water source; the fifth temperature data is temperature data detected by a fifth temperature sensor located at or near the inlet of the third flow channel, and the flow rate data is flow rate data detected by a flow sensor located at or near the inlet of the third flow channel; calculating a corresponding target heating water temperature based on the set hot water temperature, the fifth temperature data, and the flow rate data; determining whether the liquid temperature at the outlet of the second flow channel is greater than a second set temperature based on the first temperature data and the target heating water temperature, wherein the second set temperature is greater than or equal to the target heating water temperature; and, if it is determined that the liquid temperature at the outlet of the second flow channel is greater than the second set temperature, controlling a flow regulating device to reduce the flow rate of the heat exchange medium flowing into the second flow channel.

[0201] In this embodiment, if the temperature of the heat exchange medium flowing into the first channel from the first heat source is too high, causing the temperature of the heat exchange medium flowing in the second channel to be too high, the flow rate regulating device can be controlled to reduce the flow rate of the heat exchange medium flowing into the second channel, thereby preventing the water temperature in the hot water pipe at the hot water terminal from exceeding the user-set temperature.

[0202] In some embodiments of this specification, the other terminal, either the hot water terminal or the heating terminal, is a heating terminal. The control method may further include: when the heating terminal is operating, acquiring a first set temperature; determining, based on the first temperature data and the second temperature data, whether the liquid temperature at the outlet of the second flow channel is less than the first set temperature and greater than the liquid temperature at the inlet of the second flow channel; if it is determined that the liquid temperature at the outlet of the second flow channel is less than the first set temperature and greater than the liquid temperature at the inlet of the second flow channel, controlling the second heat source to heat the flowing liquid. Wherein, the first set temperature is greater than or equal to the set temperature of the second heat source (i.e., the heating water set temperature).

[0203] In this embodiment, when the temperature at the outlet of the second flow channel is greater than the temperature at the inlet of the second flow channel but less than the first set temperature, the second heat source can be controlled to heat the liquid flowing in from the inlet of the second heat source, thereby meeting the user's heating needs.

[0204] In some embodiments of this specification, the control method may further include: when the hot water terminal is operating, acquiring a set hot water temperature, second temperature data, fifth temperature data, and flow rate data; the hot water terminal includes a cold water pipe and a hot water pipe; the hot water pipe is connected to the outlet of the third flow channel; the cold water pipe is connected to the inlet of the third flow channel and a water source; the fifth temperature data is temperature data detected by a fifth temperature sensor located at or near the inlet of the third flow channel, and the flow rate data is flow rate data detected by a flow sensor located at or near the inlet of the third flow channel; calculating a corresponding target heating water temperature based on the set hot water temperature, the fifth temperature data, and the flow rate data; determining whether the liquid temperature at the outlet of the second flow channel is greater than the liquid temperature at the inlet of the second flow channel and less than the target heating water temperature based on the first temperature data and the second temperature data; and controlling the second heat source to heat the flowing liquid when it is determined that the liquid temperature at the outlet of the second flow channel is greater than the liquid temperature at the inlet of the second flow channel and less than the target heating water temperature.

[0205] In this embodiment, when the temperature at the outlet of the second flow channel is greater than the temperature at the inlet of the second flow channel but less than the target heating temperature corresponding to the hot water set temperature, the first heat source is insufficient to heat the water in the third flow channel to the hot water set temperature. Therefore, the second heat source can be controlled to heat the liquid flowing in from the inlet of the second heat source. The heated liquid enters the second flow channel to supply heat for domestic water use, thereby meeting the user's hot water demand.

[0206] In some embodiments of this specification, the control method may further include: acquiring seventh temperature data; the seventh temperature data being temperature data detected by a seventh temperature sensor located between the outlet of the first heat source and the inlet of the first flow channel; controlling the opening degree of a fifth solenoid valve based on the seventh temperature data and the second temperature data; the fifth solenoid valve being located at the inlet of the first flow channel or the outlet of the first flow channel.

[0207] Specifically, a seventh temperature data detected by a seventh temperature sensor located between the first heat source outlet and the first flow channel inlet can be acquired. The opening degree of the fifth solenoid valve can be controlled based on the seventh and second temperature data. In one embodiment, it can be determined whether the liquid temperature at the outlet of the first heat source is higher than the liquid temperature at the inlet of the second flow channel based on the seventh and second temperature data. If so, the fifth solenoid valve can be opened, allowing the liquid flowing out of the first heat source to enter the first flow channel, thereby heating the liquid flowing in the second flow channel. If the liquid temperature at the outlet of the first heat source is not higher than the liquid temperature at the inlet of the second flow channel, the fifth solenoid valve can be closed, preventing the liquid flowing out of the first heat source from flowing into the first flow channel and avoiding heat loss of the heat exchange medium in the second flow channel.

[0208] In some embodiments of this specification, the control method may further include: acquiring a sixth temperature data and a set hot water temperature when the hot water terminal is operating; the sixth temperature data is temperature data detected by a sixth temperature sensor located at or near the outlet of the third flow channel; the second connecting pipe is disposed between the hot water pipe and the cold water pipe at the hot water terminal; controlling the opening degree of a fourth solenoid valve according to the sixth temperature data and the set hot water temperature; the fourth solenoid valve is disposed on the second connecting pipe.

[0209] Specifically, when the hot water terminal is operating, the temperature at the outlet of the sixth flow channel can be determined based on the sixth temperature data to see if it is higher than the second set temperature. The second set temperature can be greater than or equal to the hot water set temperature. If so, the fourth solenoid valve can be opened or its opening increased, allowing cold water in the cold water pipe to flow into the hot water pipe through the second connecting pipe, mixing with the hot water flowing out of the third flow channel, thereby lowering the hot water temperature. If the temperature at the outlet of the sixth flow channel is lower than the second set temperature, the fourth solenoid valve can be closed or its opening reduced, decreasing the flow rate of cold water from the cold water pipe into the hot water pipe through the second connecting pipe, reducing heat loss in the hot water pipe, and thus increasing the hot water temperature. Through these methods, the user's water usage needs can be met, and the user's temperature control experience can be improved.

[0210] This specification also provides a heating system in its embodiments, which may include:

[0211] A heat exchange device includes a first flow channel, a second flow channel, and a third flow channel that are isolated from each other; the heat exchange medium flowing in the first flow channel can exchange heat with the heat exchange medium flowing in the second flow channel, and the heat exchange medium flowing in the second flow channel can exchange heat with the heat exchange medium flowing in the third flow channel.

[0212] A first heat source, the outlet of which is connected to the inlet of the first flow channel; the inlet of the first heat source is connected to the outlet of the first flow channel.

[0213] A second heat source, the outlet of which is connected to the inlet of the second flow channel; and the inlet of the second heat source is connected to the outlet of the second flow channel.

[0214] A flow regulating device is provided in the pipeline between the outlet and the inlet of the second heat source, and the flow regulating device is used to regulate the flow rate of the heat exchange medium flowing in the second flow channel.

[0215] The heat exchange medium flowing in the third channel is used to supply heat to the hot water terminal and / or the heating terminal.

[0216] A first temperature sensor is located at or near the outlet of the second flow channel;

[0217] The controller is communicatively connected to the first temperature sensor and the flow regulating device, and is used to acquire the set temperature of the second heat source and the first temperature data; the first temperature data is the temperature data of the heat exchange medium detected by the first temperature sensor; according to the set temperature of the second heat source and the first temperature data, the controller controls the flow regulating device to adjust the flow rate of the heat exchange medium flowing in the second flow channel.

[0218] In some embodiments of this specification, the controller is the main controller in the second heat source.

[0219] This specification also provides a heating system in the embodiments, which may include: a heat exchange device, the heat exchange device including a first flow channel, a second flow channel and a third flow channel that are isolated from each other; the heat exchange medium flowing in the first flow channel can exchange heat with the heat exchange medium flowing in the second flow channel and the heat exchange medium flowing in the second flow channel can exchange heat with the heat exchange medium flowing in the third flow channel.

[0220] A first heat source, the outlet of which is connected to the inlet of the first flow channel; the inlet of the first heat source is connected to the outlet of the first flow channel.

[0221] A second heat source, the outlet of which is connected to the inlet of the second flow channel; and the inlet of the second heat source is connected to the outlet of the second flow channel.

[0222] A flow regulating device is provided in the pipeline between the outlet and the inlet of the second heat source, and the flow regulating device is used to regulate the flow rate of the heat exchange medium flowing in the second flow channel.

[0223] The heat exchange medium flowing in the third channel is used to supply heat to the hot water terminal and / or the heating terminal.

[0224] A first temperature sensor is located at or near the outlet of the second flow channel;

[0225] A second temperature sensor is located at or near the inlet of the second flow channel;

[0226] The controller is communicatively connected to the first temperature sensor, the second temperature sensor, and the flow regulating device to acquire first temperature data and second temperature data. The first temperature data is the temperature data of the heat exchange medium detected by the first temperature sensor; the second temperature data is the temperature data of the heat exchange medium detected by the second temperature sensor. Based on the first temperature data and the second temperature data, the controller determines whether the temperature of the heat exchange medium at the inlet of the second flow channel is higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel. If it is determined that the temperature of the heat exchange medium at the inlet of the second flow channel is higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel, the controller controls the flow regulating device to reduce the flow rate of the heat exchange medium flowing in the second flow channel to a minimum.

[0227] In some embodiments of this specification, the controller is the main controller in the second heat source.

[0228] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. For details, please refer to the foregoing descriptions of the relevant processing embodiments; they will not be repeated here.

[0229] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0230] This specification also provides a computer device based on the heating system control method provided in the embodiments of this specification. Specifically, the computer device may include an input device, a processor, and a memory. The memory stores processor-executable instructions. When the processor executes the instructions, it implements the steps of the heating system control method described in any of the above embodiments.

[0231] In this embodiment, the input device can specifically be one of the main devices for information exchange between the user and the computer system. The input device may include a keyboard, mouse, camera, scanner, light pen, handwriting input tablet, voice input device, etc.; the input device is used to input raw data and programs for processing these data into the computer. The input device can also receive data transmitted from other modules, units, and devices. The processor can be implemented in any suitable manner. For example, the processor can take the form of a microprocessor or processor and a computer-readable medium storing computer-readable program code (e.g., software or firmware) executable by the (micro)processor, logic gates, switches, application-specific integrated circuits (ASICs), programmable logic controllers, and embedded microcontrollers, etc. The memory can specifically be a memory device used to store information in modern information technology. The memory can include multiple layers; in digital systems, anything that can store binary data can be considered memory; in integrated circuits, a circuit without physical form but with storage function is also called memory, such as RAM, FIFO, etc.; in a system, a storage device with physical form is also called memory, such as a memory stick, TF card, etc.

[0232] In this embodiment, the specific functions and effects implemented by the computer device can be explained in comparison with other embodiments, and will not be repeated here.

[0233] This specification also provides a computer storage medium based on a heating system control method, wherein the computer storage medium stores computer program instructions that, when executed, implement the steps of the heating system control method described in any of the above embodiments.

[0234] In this embodiment, the storage medium includes, but is not limited to, Random Access Memory (RAM), Read-Only Memory (ROM), cache, hard disk drive (HDD), or memory card. The memory can be used to store computer program instructions. The network communication unit can be an interface configured according to standards specified in the communication protocol for network connection communication.

[0235] In this embodiment, the specific functions and effects implemented by the program instructions stored in the computer storage medium can be explained by comparison with other embodiments, and will not be repeated here.

[0236] Obviously, those skilled in the art will understand that the modules or steps of the embodiments described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. Optionally, they can be implemented using computer-executable program code, thereby storing them in a storage device for execution by a computing device. In some cases, the steps shown or described can be performed in a different order than those presented herein, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the embodiments of this specification are not limited to any particular combination of hardware and software.

[0237] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this specification should not be determined by reference to the above description, but rather by reference to the foregoing claims and the full scope of their equivalents.

[0238] The above description is merely a preferred embodiment of this specification and is not intended to limit this specification. Various modifications and variations can be made to the embodiments described herein by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of protection of this specification.

Claims

1. A heating system, characterized in that, The heating system includes: A heat exchange device includes a first flow channel, a second flow channel, and a third flow channel that are isolated from each other; the heat exchange medium flowing in the first flow channel can exchange heat with the heat exchange medium flowing in the second flow channel, and the heat exchange medium flowing in the second flow channel can exchange heat with the heat exchange medium flowing in the third flow channel; the heat exchange medium flowing in the third flow channel is used to supply heat to hot water terminals and / or heating terminals. A first heat source, the outlet of which is connected to the inlet of the first flow channel; the inlet of which is connected to the outlet of the first flow channel; the heat from the first heat source can be transferred to the third flow channel through heat exchange between the first flow channel and the second flow channel and heat exchange between the second flow channel and the third flow channel, so as to supply heat to the hot water terminal and / or the heating terminal. The second heat source has an outlet connected to the inlet of the second flow channel; the inlet of the second heat source is connected to the outlet of the second flow channel; the heat from the second heat source can be transferred to the third flow channel through heat exchange between the second flow channel and the third flow channel to supply heat to the hot water terminal and / or heating terminal. A flow regulating device is installed in the pipeline between the outlet and the inlet of the second heat source. The flow regulating device is used to regulate the flow rate of the heat exchange medium flowing in the second flow channel according to user needs or system settings. The heating system is used to integrate and schedule the first heat source and the second heat source to supply heat to the hot water terminal and / or heating terminal. The heat exchange device includes a first heat exchanger and a second heat exchanger that are independent of each other; the first heat exchanger includes a first flow channel and a portion of a second flow channel that are isolated from each other, and the heat exchange medium flowing in the first flow channel can exchange heat with the heat exchange medium flowing in the second flow channel; the second heat exchanger includes another portion of a second flow channel and a third flow channel that are isolated from each other, and the heat exchange medium flowing in the other portion of the second flow channel can exchange heat with the heat exchange medium flowing in the third flow channel; or, The heat exchange device includes an integrated three-channel plate heat exchanger.

2. The heating system according to claim 1, characterized in that, The heating system further includes a first connecting pipe, one end of which is connected to a first pipeline between the inlet of the second flow channel and the outlet of the second heat source, and the other end of which is connected to a second pipeline between the outlet of the second flow channel and the inlet of the second heat source. The flow regulating device is located at the first connection point between the first connecting pipe and the first pipeline. Alternatively, the flow regulating device may be located at the second connection point between the first connecting pipe and the second pipeline.

3. The heating system according to claim 2, characterized in that, The flow regulating device is a first three-way valve. The first end of the first three-way valve is connected to the outlet of the second heat source, the second end of the first three-way valve is connected to the inlet of the second flow channel, and the third end of the first three-way valve is connected to one end of the first connecting pipe. Alternatively, the first end of the first three-way valve is connected to the inlet of the second heat source, the second end of the first three-way valve is connected to the outlet of the second flow channel, and the third end of the first three-way valve is connected to the other end of the first connecting pipe.

4. The heating system according to claim 3, characterized in that, The first three-way valve can regulate the flow rate relationship between the fluid flowing in the first connecting pipe and the second flow channel.

5. The heating system according to claim 1, characterized in that, The heating system further includes a first connecting pipe, one end of which is connected to a first pipeline between the inlet of the second flow channel and the outlet of the second heat source, and the other end of which is connected to a second pipeline between the outlet of the second flow channel and the inlet of the second heat source. The flow regulating device is installed on the first connecting pipe; Alternatively, the flow regulating device may be installed on the pipeline between one end of the first connecting pipe and the inlet of the second flow channel; Alternatively, the flow regulating device may be installed on the pipeline between the other end of the first connecting pipe and the outlet of the second flow channel.

6. The heating system according to claim 5, characterized in that, The flow regulating device is a first solenoid valve, which can regulate the flow rate of the fluid flowing through the first connecting pipe or the flow rate of the fluid flowing in the second flow channel.

7. The heating system according to claim 1, characterized in that, The flow regulation device includes a variable frequency water pump.

8. The heating system according to claim 1, characterized in that, The heat exchange device includes an integrated three-channel plate heat exchanger; the three-channel plate heat exchanger includes at least a first plate, a second plate, a third plate, and a fourth plate; the first plate and the second plate are arranged adjacent to each other; the second plate and the third plate are arranged adjacent to each other, and the third plate and the fourth plate are arranged adjacent to each other; the first plate and the second plate are sealed together and form a first cavity between the first plate and the second plate; the second plate and the third plate are sealed together and form a second cavity between the second plate and the third plate; the third plate and the fourth plate are sealed together and form a third cavity between the third plate and the fourth plate.

9. The heating system according to claim 8, characterized in that, The first cavity comprises the first flow channel; the second cavity comprises the second flow channel; the third cavity comprises the third flow channel; The heat exchange medium flowing in the first cavity can exchange heat with the heat exchange medium flowing in the second cavity, and the heat exchange medium flowing in the second cavity can exchange heat with the heat exchange medium flowing in the third cavity.

10. The heating system according to claim 9, characterized in that, The three-channel plate heat exchanger further includes multiple heat exchange plates, which are arranged above the first plate along the stacking direction to form at least one fourth cavity and at least one fifth cavity in an alternating manner. The fourth cavity communicates with the first cavity to form a portion of the first flow channel, and the fifth cavity communicates with the second cavity to form a portion of the second flow channel. The first plate and the nearest heat exchange plate form the fourth cavity or the fifth cavity. And / or, the plurality of heat exchange plates are arranged along the stacking direction below the fourth plate to form at least one sixth cavity and at least one seventh cavity in an alternating arrangement, the sixth cavity communicating with the second cavity to form a portion of the second flow channel, the seventh cavity communicating with the third cavity to form a portion of the third flow channel, and the fourth plate and the nearest heat exchange plate forming the sixth cavity or the seventh cavity.

11. The heating system according to claim 10, characterized in that, The first cavity is adjacent to the fifth cavity, and the heat exchange medium flowing in the first cavity can exchange heat with the heat exchange medium flowing in the fifth cavity. The heat exchange medium flowing in the fourth cavity can exchange heat with the heat exchange medium flowing in the fifth cavity. And / or, the third cavity is adjacent to the sixth cavity, the heat exchange medium flowing in the sixth cavity can exchange heat with the heat exchange medium flowing in the third cavity, and the heat exchange medium flowing in the sixth cavity can exchange heat with the heat exchange medium flowing in the seventh cavity.

12. The heating system according to claim 10, characterized in that, The three-channel plate heat exchanger further includes a first connecting portion disposed within the third cavity, and the second cavity and the sixth cavity are connected through the first connecting portion; or The three-channel plate heat exchanger further includes a second connecting portion disposed within the first cavity, and the second cavity is connected to the fifth cavity through the second connecting portion.

13. The heating system according to claim 2, characterized in that, The heating system also includes a housing for housing the heat exchange device, and the flow regulating device and the first connecting pipe are both disposed inside the housing.

14. The heating system according to claim 13, characterized in that, The housing has multiple openings, and the pipes located inside the housing are detachably connected to the inlet and outlet of the first heat source and / or the second heat source through the openings.

15. The heating system according to claim 2, characterized in that, The heat exchange medium flowing in the third channel is used to supply heat to one of the hot water terminal and the heating terminal. The heating system further includes a first interface and a second interface, the first interface and the second interface being used to communicate with one of the hot water terminal and the heating terminal, and the first interface and the second interface being located on the first pipeline between the outlet of the second heat source and the first connection point.

16. The heating system according to claim 15, characterized in that, Both the first interface and the second interface are three-way interfaces.

17. The heating system according to claim 16, characterized in that, The first interface or the second interface is a second three-way valve with flow regulation function. The second three-way valve is used to regulate the flow rate of liquid flowing through one of the hot water terminal and the heating terminal, and the flow rate of liquid flowing through the first pipeline between the first interface and the second interface.

18. The heating system according to claim 16, characterized in that, The heating system further includes a second solenoid valve and a third solenoid valve. The second solenoid valve and the third solenoid valve cooperate to regulate the flow rate of liquid flowing through the other end of the hot water terminal and the heating terminal, and the flow rate of liquid flowing through the first pipeline between the first interface and the second interface. The second solenoid valve is disposed on the pipeline between the first interface and the second interface. The third solenoid valve is installed on the pipeline between the first interface and another of the hot water terminal and the heating terminal; or... The third solenoid valve is installed on the pipeline between the second interface and one of the hot water terminal and the heating terminal.

19. The heating system according to claim 1, characterized in that, The heating system further includes a second connecting pipe, the inlet of which is connected to the inlet of the third flow channel, and the outlet of which is connected to the outlet of the third flow channel.

20. The heating system according to claim 19, characterized in that, The heating system also includes a fourth solenoid valve, which is installed on the second connecting pipe.

21. The heating system according to claim 1, characterized in that, The flow regulating device is located inside the second heat source.

22. The heating system according to claim 1, characterized in that, The flow regulating device is set independently of the second heat source and the heat exchange device.

23. The heating system according to claim 1, characterized in that, The heating system also includes: A first temperature sensor is located at or near the outlet of the second flow channel; and / or A second temperature sensor is located at or near the inlet of the second flow channel.

24. The heating system according to claim 1, characterized in that, The heating system also includes: A third temperature sensor, located at or near the outlet of the second heat source; and / or A fourth temperature sensor is located at or near the inlet of the second heat source.

25. The heating system according to claim 19, characterized in that, The heating system also includes: A fifth temperature sensor, wherein the fifth temperature sensor is located at or near the inlet of the third flow channel; and / or, A sixth temperature sensor, which is located at or near the outlet of the third flow channel.

26. The heating system according to claim 19, characterized in that, The heating system also includes: A flow sensor, which is located at or near the inlet of the third flow channel, or at or near the outlet of the third flow channel.

27. The heating system according to claim 1, characterized in that, The heating system also includes: A seventh temperature sensor is disposed between the outlet of the first heat source and the inlet of the first flow channel; and / or A fifth solenoid valve is disposed at the inlet or outlet of the first flow channel.

28. The heating system according to claim 1, characterized in that, The first heat source includes at least one of the following: a solar water heating system, a heat pump, an electric water heating system, or a district heating system; and / or The second heat source includes at least one of the following: gas-fired water heater, electric water heater, solar water heater, heat pump, or central heating.

29. A method for controlling a heating system, characterized in that, The control method, applied to the heating system according to any one of claims 1 to 28, comprises: The set temperature of the second heat source and the first temperature data are obtained; the first temperature data is the temperature data of the heat exchange medium detected by the first temperature sensor located at or near the outlet of the second flow channel. Based on the set temperature of the second heat source and the first temperature data, the flow rate regulating device adjusts the flow rate of the heat exchange medium flowing in the second flow channel.

30. The heating system control method according to claim 29, characterized in that, Based on the set temperature of the second heat source and the first temperature data, the flow regulating device adjusts the flow rate of the heat exchange medium flowing in the second flow channel, including: Based on the first temperature data, determine whether the temperature of the heat exchange medium flowing out of the outlet of the second flow channel is greater than the first set temperature, wherein the first set temperature is greater than or equal to the set temperature of the second heat source. If the temperature of the heat exchange medium flowing out of the outlet of the second flow channel is determined to be greater than the first set temperature, the flow regulating device is controlled to reduce the flow rate of the heat exchange medium flowing in the second flow channel.

31. The heating system control method according to claim 29, characterized in that, The heating system further includes a first connecting pipe, one end of which is connected to a first pipeline between the inlet of the second flow channel and the outlet of the second heat source, and the other end of which is connected to a second pipeline between the outlet of the second flow channel and the inlet of the second heat source; the heat exchange medium flowing in the third flow channel is used to supply heat to one of the hot water terminal and the heating terminal. The heating system further includes: a first interface and a second interface, the first interface and the second interface being used to connect to one of the hot water terminal and the heating terminal, and the first interface and the second interface being located on the first pipeline between the outlet of the second heat source and the first connection point; Accordingly, based on the set temperature of the second heat source and the first temperature data, the flow regulating device adjusts the flow rate of the heat exchange medium flowing in the second flow channel, including: When the first interface and the second interface are connected to one of the hot water terminal and the heating terminal, the temperature of the heat exchange medium flowing out of the outlet of the second flow channel is determined according to the first temperature data. The first set temperature is greater than or equal to the set temperature of the second heat source. If the temperature of the heat exchange medium flowing out of the outlet of the second flow channel is determined to be greater than the first set temperature, the flow regulating device is controlled to reduce the flow rate of the heat exchange medium flowing in the second flow channel and increase the flow rate of the heat exchange medium flowing in the first connecting pipe.

32. A method for controlling a heating system, characterized in that, The control method, applied to the heating system according to any one of claims 1 to 28, comprises: Acquire first temperature data and second temperature data; the first temperature data is the temperature data of the heat exchange medium detected by a first temperature sensor located at or near the outlet of the second flow channel; the second temperature data is the temperature data of the heat exchange medium detected by a second temperature sensor located at or near the inlet of the second flow channel. Based on the first temperature data and the second temperature data, determine whether the temperature of the heat exchange medium at the inlet of the second flow channel is higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel; If the temperature of the heat exchange medium at the inlet of the second flow channel is determined to be higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel, the flow regulating device is controlled to reduce the flow rate of the heat exchange medium flowing in the second flow channel to a minimum.

33. The heating system control method according to claim 32, characterized in that, The heating system further includes a first connecting pipe, one end of which is connected to a first pipeline between the inlet of the second flow channel and the outlet of the second heat source, and the other end of which is connected to a second pipeline between the outlet of the second flow channel and the inlet of the second heat source; the heat exchange medium flowing in the third flow channel is used to supply heat to one of the hot water terminal and the heating terminal. The heating system further includes: a first interface and a second interface, the first interface and the second interface being used to connect to one of the hot water terminal and the heating terminal, and the first interface and the second interface being located on the first pipeline between the outlet of the second heat source and the first connection point; Accordingly, based on the set temperature of the second heat source and the first temperature data, the flow regulating device adjusts the flow rate of the heat exchange medium flowing in the second flow channel, including: When the first interface and the second interface are connected to one of the hot water terminal and the heating terminal, the temperature of the heat exchange medium at the inlet of the second flow channel is determined to be higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel based on the first temperature data and the second temperature data. If the temperature of the heat exchange medium at the inlet of the second flow channel is determined to be higher than or equal to the temperature of the heat exchange medium at the outlet of the second flow channel, the flow regulating device is controlled to reduce the flow rate of the heat exchange medium flowing in the second flow channel to a minimum, and to increase the flow rate of the heat exchange medium flowing in the first connecting pipe.

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