WO2021012832A1 - 一种采暖热水装置及其控制方法 - Google Patents

一种采暖热水装置及其控制方法 Download PDF

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Publication number
WO2021012832A1
WO2021012832A1 PCT/CN2020/095838 CN2020095838W WO2021012832A1 WO 2021012832 A1 WO2021012832 A1 WO 2021012832A1 CN 2020095838 W CN2020095838 W CN 2020095838W WO 2021012832 A1 WO2021012832 A1 WO 2021012832A1
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WIPO (PCT)
Prior art keywords
heating
water
domestic
outlet pipe
adjustment device
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Application number
PCT/CN2020/095838
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English (en)
French (fr)
Inventor
马志浩
倪双跃
梁国荣
张永明
黄朝辉
Original Assignee
芜湖美的厨卫电器制造有限公司
美的集团股份有限公司
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Publication of WO2021012832A1 publication Critical patent/WO2021012832A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F24D3/087—Tap water heat exchangers specially adapted therefore
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water

Definitions

  • the invention relates to the technical field of household appliances, in particular to a heating and hot water device and a control method thereof.
  • ordinary wall-hung boilers can only supply heating to heating equipment, and electric water heaters can only supply domestic hot water to domestic water supply equipment. Therefore, two sets of heating equipment are generally required to ensure both heating and domestic hot water supply.
  • the heating and hot water device can not only supply heating to the heating equipment, but also supply domestic hot water to the domestic water supply equipment, so it is accepted by more and more users.
  • the inventor of the present application has discovered in the long-term research and development that the current heating and hot water device will give priority to the supply of domestic hot water during operation, that is, when the user uses domestic hot water, it will stop heating the heating equipment, if the user uses the domestic heat If the water is too long, the indoor temperature will drop, which will affect the heating effect.
  • the invention provides a heating and hot water device and a control method thereof to solve the technical problem that the heating and hot water device in the prior art cannot provide heating and domestic hot water at the same time.
  • a technical solution adopted by the present invention is to provide a heating and hot water device, including:
  • a first heat exchanger and a second heat exchanger is connected to the first heat exchanger, and is used to receive heating water from the first heat exchanger to provide external domestic water supply equipment Domestic hot water; the second heat exchanger is also used to connect with external heating equipment, and the first heat exchanger is used to provide heating water to the external heating equipment through the second heat exchanger;
  • a bypass pipeline, the bypass pipeline is short-connected to both ends of the second heat exchanger and/or the external heating equipment;
  • the flow rate adjusting device is connected with the bypass pipeline and is used to adjust the flow rate of the heating water flowing to the bypass pipeline.
  • the heating and hot water device further includes:
  • the heating water inlet pipe is used to transport heating water to the first heat exchanger
  • the first heating water outlet pipe is used to transport the heating water heated by the first heat exchanger to the second heat exchanger;
  • the second heating water outlet pipe is used to transport the heating water flowing through the second heat exchanger to the external heating equipment;
  • the domestic water inlet pipe is used to transport domestic water to the second heat exchanger
  • the domestic water outlet pipe is used to output the domestic water heated by the second heat exchanger
  • the flow adjustment device includes a first flow adjustment device, which is arranged on the first heating water outlet pipe;
  • the bypass pipeline includes a first bypass pipeline for connecting the first flow regulating device and the second heating water outlet pipeline, wherein the first flow regulating device is used for regulating flow to the second heat exchanger The flow distribution ratio between the heating water and the heating water flowing to the first bypass pipe.
  • the flow adjustment device further includes a second flow adjustment device
  • the bypass pipe further includes a second bypass pipe
  • the second flow adjustment device is disposed on the second heating water outlet pipe
  • the second bypass pipeline connects the second flow adjustment device and the heating water inlet pipeline;
  • the second flow adjustment device is arranged on the heating water inlet pipe, and the second bypass pipeline connects the second flow adjustment device and the second heating water outlet pipe;
  • the second flow adjustment device is used to adjust the flow distribution ratio between the heating water flowing to the external heating equipment and the heating water flowing to the second bypass pipe.
  • the heating and hot water device further includes a controller and a heating circulation pump, and the heating circulation pump is arranged on the heating water inlet pipe, the first heating water outlet pipe or the second heating water outlet pipe.
  • the controller is used to turn on the heating circulating pump when the user turns on the heating and hot water device.
  • the controller is provided with multiple water supply modes, and controls the heating circulating pump and the first flow rate adjustment according to the mode selected by the user ⁇ and the second flow regulating device.
  • the controller controls the first flow adjustment device to close the water flow between the first flow adjustment device and the second heat exchanger A path so that the heating water in the first heating water outlet pipe flows to the second heating water outlet pipe through the first bypass pipe;
  • the controller controls the first flow adjustment device to close the water flow path between the first flow adjustment device and the first bypass pipe, so that all The heating water in the first heating water outlet pipe flows to the second heat exchanger;
  • the controller controls the first flow adjustment device so that the heating water in the first heating water outlet pipe at least partly flows to the second heat exchanger .
  • the controller controls the second flow adjustment device to close the gap between the second flow adjustment device and the second bypass pipe ⁇ Path to make the heating water in the second heating water outlet pipe flow to the external heating equipment;
  • the controller controls the second flow adjustment device to close the water flow path between the second flow adjustment device and the external heating equipment, so that all The heating water in the second heating water outlet pipeline flows to the heating water inlet pipeline through the second bypass pipeline;
  • the controller controls the second flow adjustment device so that the heating water in the second heating water outlet pipe at least partially flows to the external heating equipment .
  • the heating and hot water device further includes a temperature detection device, which is arranged in the domestic water outlet pipe and is used to detect the temperature of the domestic water in the domestic water outlet pipe.
  • the controller controls the second flow adjustment device so that the heating water in the second heating water outlet pipe flows to the External heating equipment;
  • the controller controls the second flow adjustment device so that the heating water in the second heating water outlet pipe at least partially flows to the heating water inlet pipe through the second bypass pipe.
  • the heating and hot water device further includes a flow detection device and a temperature detection device, and the flow detection device is arranged in the domestic water inlet pipe or the domestic water outlet pipe for detecting the domestic water inlet The flow rate of the domestic water in the pipeline or the domestic water outlet pipe; the temperature detection device is arranged in the domestic water outlet pipe and is used for detecting the temperature of the domestic water in the domestic water outlet pipe.
  • the controller controls the second flow adjustment device so that the heating in the second heating outlet pipeline At least part of the water flows to the heating water inlet pipe;
  • the flow rate of the domestic water in the domestic water inlet pipe or the domestic water outlet pipe is greater than or equal to a flow threshold, the temperature in the domestic outlet pipe continues to be greater than or equal to the second temperature threshold for a time greater than or equal to the time threshold, so
  • the controller controls the second flow adjustment device so that the heating water in the second heating water outlet pipe at least partially flows to the external heating equipment.
  • the controller controls the second flow adjustment device so that when the heating water in the second heating water outlet pipe at least partially flows to the external heating equipment, the heating water flows to the external heating equipment The flow rate of the heating water gradually increases, so that the fluctuation value of the temperature in the domestic water outlet pipe is smaller than the third temperature threshold.
  • the controller is further used to control the heating and hot water device when the maximum load is reached.
  • the second flow regulating device stops increasing the flow of heating water flowing to the external heating equipment.
  • At least one of the first flow adjustment device and the second flow adjustment device is a three-way valve or a three-way control valve.
  • the heating and hot water device further includes a controller and a domestic water circulating pump, an external domestic water supply device is connected to the domestic water inlet pipe and the domestic water outlet pipe, and the external domestic water supply device includes A backwater pipeline, the controller is provided with a zero cold water function, and the backwater pipeline connects the domestic water inlet pipe and the domestic water outlet pipe and is used to form domestic water together with the domestic water inlet pipe and the domestic water outlet pipe
  • the circulation circuit of the living water circulation pump is arranged on the living water inlet pipe or the living water outlet pipe, and is located on the circulation circuit;
  • the controller controls the living water circulation pump to turn on to preheat the living water in the living water inlet pipe, the living water outlet pipe, and the return water pipe.
  • the heating and hot water device further includes a temperature detecting device which is arranged in the domestic water outlet pipe and is used to detect the temperature of the domestic water in the domestic water outlet pipe.
  • the controller is further configured to control the living water circulation pump to shut down when the temperature of the living water in the living water outlet pipe is greater than or equal to a fourth temperature threshold.
  • the controller is further configured to increase the power of the first heat exchanger by Q when the user selects the zero-cold water function, where Q is the reference to the domestic water inlet pipe and the domestic water outlet.
  • Q is the reference to the domestic water inlet pipe and the domestic water outlet.
  • the heating power required for circulating preheating of the living water in the pipeline and the return water pipeline; the controller is further configured to increase the power of the first heat exchanger after the power is greater than that of the first heat exchanger At the maximum load, the power of the first heat exchanger is set to the rated power.
  • connection between the return water pipe and the domestic water inlet pipe or the domestic water outlet pipe is close to the domestic water circulating pump.
  • the connection between the return water pipe and the domestic water inlet pipe or the domestic water outlet pipe is far away from the domestic water circulating pump
  • the heating and hot water device further includes a unidirectional circulation device
  • the single The circulation device is arranged on the return water pipe, and is used to make the living water in the return water pipe flow only in the direction of the living water outlet pipe to the living water inlet pipe.
  • another technical solution adopted by the present invention is to provide a control method of a heating and hot water device, including:
  • Provide pure heating mode and/or pure domestic hot water mode provide heating and domestic hot water mode at the same time, and determine whether one of the modes is selected; when the mode selected by the user is pure heating mode, control the flow adjustment device to make The heating water generated by the first heat exchanger flows to the external heating equipment through the first bypass pipeline;
  • the flow adjustment device is controlled so that the heating water produced by the first heat exchanger flows to the second heat exchanger and flows back to the first heat exchange through the second bypass pipe To provide domestic hot water to external domestic water supply equipment;
  • control the flow adjustment device so that at least part of the heating water generated by the first heat exchanger flows to the second heat exchanger, and at least part of the heating water flows to the outside Heating equipment.
  • the method specifically includes:
  • the controller controls the first flow adjustment device in the flow adjustment device to close the water flow path between the first flow adjustment device and the second heat exchanger, So that the heating water in the first heating water outlet pipe flows to the second heating water outlet pipe through the first bypass pipe;
  • the controller controls the first flow adjustment device to close the water flow path between the first flow adjustment device and the first bypass pipe to Enabling the heating water in the first heating water outlet pipe to flow to the second heat exchanger;
  • the controller controls the first flow adjustment device so that the heating water in the first heating water outlet pipe at least partly flows to the second Heater.
  • the method specifically includes:
  • the controller controls the second flow adjustment device in the flow adjustment device to close the water flow between the second flow adjustment device and the second bypass pipe A path so that the heating water in the second heating water outlet pipe flows to the external heating equipment;
  • the controller controls the second flow adjustment device to close the water flow path between the second flow adjustment device and the external heating equipment, so that all The heating water in the second heating water outlet pipeline flows to the heating water inlet pipeline through the second bypass pipeline;
  • the controller controls the second flow adjustment device so that the heating water in the second heating water outlet pipe at least partially flows to the external heating equipment .
  • the first heat exchanger and the second heat exchanger of the heating and hot water device are arranged in series, and the bypass pipe is short-circuited at the two ends of the second heat exchanger and/or the external heating device, and the flow rate is adjusted.
  • the device adjusts the flow of heating water flowing to the bypass pipeline, and can supply heat to the external domestic water supply equipment and external heating equipment separately or at the same time according to user needs, avoiding the external heating equipment being used for too long. It can improve the heating efficiency of the heating and hot water device.
  • Figure 1 is a schematic structural diagram of an embodiment of the heating and hot water device of the present invention
  • Figure 2 is a schematic structural diagram of another embodiment of the heating and hot water device of the present invention.
  • FIG. 3 is a schematic structural diagram of another embodiment of the heating and hot water device of the present invention.
  • Figure 4 is a schematic structural diagram of another embodiment of the heating and hot water device of the present invention.
  • Fig. 5 is a schematic flowchart of an embodiment of the control method of the heating and hot water device of the present invention.
  • first and second in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
  • a plurality of means at least two, such as two, three, etc., unless otherwise specifically defined.
  • the terms “including” and “having” and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes unlisted steps or units, or optionally also includes Other steps or units inherent to these processes, methods, products or equipment.
  • an embodiment of the heating and hot water device 10 of the present invention includes a first heat exchanger 100, a second heat exchanger 200, a bypass pipe, and a flow regulating device.
  • the second heat exchanger 200 and the first heat exchanger 100 Is connected to receive heating water from the first heat exchanger 100 to provide domestic hot water to an external domestic water supply device (not shown in the figure); the second heat exchanger 200 is also used to communicate with an external heating device (not shown in the figure) Show) connection, the first heat exchanger 100 is used to provide heating water to the external heating equipment via the second heat exchanger 200; the bypass pipe is short-connected to the two ends of the second heat exchanger 200 and/or the external heating equipment;
  • the flow adjustment device is connected with the bypass pipeline and is used to adjust the flow of heating water flowing to the bypass pipeline.
  • the first heat exchanger and the second heat exchanger of the heating and hot water device are arranged in series, and the bypass pipe is short-circuited at both ends of the second heat exchanger and/or the external heating device, and passes
  • the flow adjustment device adjusts the flow of heating water flowing to the bypass pipeline, and can supply heat to the external domestic water supply equipment and the external heating equipment separately or at the same time according to user needs, avoiding the external domestic water supply equipment being used for too long and affecting the outside
  • the heating equipment can provide heat, and can improve the heating efficiency of the heating and hot water device.
  • the heating and hot water device 10 further includes a heating water inlet pipe 310, a first heating water outlet pipe 320, a second heating water outlet pipe 330, a domestic water inlet pipe 340, a domestic water outlet pipe 350, a first flow regulating device 410, and a second heating water outlet pipe.
  • a bypass pipe 360 in which the heating water inlet pipe 310 is used to transport heating water to the first heat exchanger 100; the first heating water outlet pipe 320 is used to transport the heating water heated by the first heat exchanger 100 to the second heat exchanger
  • the heat exchanger 200 is used as the heat source of the second heat exchanger 200; the first heating water outlet pipe 320 is used to transport the heating water flowing through the second heat exchanger 200 to the external heating equipment (not shown in the figure);
  • the pipe 340 is used to transport domestic water to the second heat exchanger 200; the domestic water outlet pipe 350 is used to output the domestic water heated by the second heat exchanger 200;
  • the flow adjustment device includes a first flow adjustment device 410, which is arranged in the first heating On the outlet pipe 320;
  • the bypass pipe includes a first bypass pipe 360 for connecting the first flow adjustment device 410 and the second heating outlet pipe 330, wherein the first flow adjustment device 410 is used to adjust the first flow adjustment device 410
  • the first heat exchanger 100 may be a heat exchanger that is heated by heaters such as a burner, a thermal resistance wire, an electric heating rod, and a condenser.
  • the flow adjustment device further includes a second flow adjustment device 420
  • the bypass pipe further includes a second bypass pipe 370
  • the second flow adjustment device 420 is disposed on the second heating water outlet pipe 330
  • the second bypass pipe 370 connects the second flow adjustment device 420 and the heating water inlet pipe 310.
  • the second flow adjustment device 420 is used to adjust the heating water flowing to the external heating equipment 20 through the second flow adjustment device 420 and the second flow
  • the adjustment device 420 flows to the second bypass pipe 370 with a flow distribution ratio between the heating water.
  • the second flow adjustment device 430 may also be arranged on the heating water inlet pipe 310, and the second bypass pipe 370 connects the second flow adjustment device 430 and the second heating water outlet pipe 330.
  • the second flow adjustment device 430 is used to adjust the flow distribution ratio between the heating water flowing to the external heating equipment (not shown in the figure) and the heating water flowing to the second bypass pipe 370.
  • the heating and hot water device 10 further includes a controller (not shown in the figure) and a heating circulation pump 500.
  • the heating circulation pump 500 is arranged on the heating water inlet pipe 310, and the controller uses When the user turns on the heating and hot water device 10, the heating circulation pump 500 is turned on.
  • the controller is provided with multiple water supply modes and controls the heating circulation pump 500, the first flow adjustment device 410, and the second flow adjustment device 420 according to the mode selected by the user .
  • the heating circulation pump 500 may also be arranged on the first heating water outlet pipe 320 or the second heating water outlet pipe 330, which is not limited herein.
  • the multiple water supply modes set by the controller include pure heating mode, pure domestic hot water mode, and simultaneous heating and domestic hot water mode.
  • the controller controls the first The flow adjustment device 410 closes the water flow path between the first flow adjustment device 410 and the second heat exchanger 200, so that the heating water in the first heating outlet pipe 320 flows to the second heating outlet pipe 330 through the first bypass pipe 360
  • the controller controls the second flow adjustment device 420 to close the water flow path between the second flow adjustment device 420 and the second bypass pipe 370, so that the heating water in the second heating outlet pipe 330 flows to the external heating equipment 20, so that
  • the heating and hot water device 10 only supplies heat to the external heating equipment 20 connected to the domestic water inlet pipe 340 and the domestic water outlet pipe 350 respectively;
  • the controller controls the first flow adjustment device 410 to close the water flow path between the first flow adjustment device 410 and the first bypass pipe 360, so that the first heating water outlet pipe 320
  • the heating water inside flows to the second heat exchanger 200
  • the controller controls the second flow adjustment device 420 to close the water flow path between the second flow adjustment device 420 and the external heating equipment 20, so that the heating in the second heating water outlet pipe 330
  • the water flows to the heating water inlet pipe 310 through the second bypass pipe 370, so that the heating and hot water device 10 only supplies heat to the external domestic water supply equipment 30;
  • the controller controls the first flow adjustment device 410 so that the heating water in the first heating water outlet pipe 320 at least partly flows to the second heat exchanger 200, and the controller controls the first
  • the second flow adjustment device 420 makes the heating water in the second heating water outlet pipe 330 at least partially flow to the external heating equipment 20.
  • the heating water in the first heating water outlet pipe 320 will all flow to the second heat exchanger 200; when the external domestic water supply equipment 30 requires relatively low heating power , So that part of the heating water in the first heating water outlet pipe 320 flows to the second heat exchanger 200, and another part of the heating water directly flows to the second heating water outlet pipe 330 through the first bypass pipe 360.
  • the heating water in the second heating water outlet pipe 330 will all flow to the external heating equipment 20; when the heating power required by the external heating equipment 20 is low, the second heating Part of the heating water in the heating water outlet pipe 330 flows to the external heating equipment 20, and another part of the heating water directly returns to the heating water inlet pipe 310 through the second bypass pipe 370, so that the heat energy utilization rate of the heating and hot water device 10 can be improved.
  • At least one of the first flow adjustment device 410 and the second flow adjustment device 420 may be a three-way control valve.
  • the three-way control valve can control its three ports to be fully opened, completely closed or partially opened.
  • the controller controls the first flow regulating device 410 so that the heating water in the first heating water outlet pipe 320 can all flow to the second heating water outlet pipe 330, All flow to the first bypass pipe 360 or part to the second heating water outlet pipe 330, and the other part to the first bypass pipe 360; the controller controls the second flow adjustment device 420 to make the heating water in the second heating water outlet pipe 330 All flow to the external heating device 20, all flow to the second bypass pipe 370, or part of the flow to the external heating device 20, and the other portion to the second bypass pipe 370.
  • At least one of the first flow adjustment device 410 and the second flow adjustment device 420 may also be a three-way valve.
  • the three-way valve can control its three ports to be fully opened or completely closed.
  • the controller controls the first flow regulating device 410 so that all the heating water in the first heating water outlet pipe 320 can flow to the second heating water outlet pipe 330 or all to the first heating water outlet pipe 330.
  • Bypass pipe 360; the controller controls the second flow adjustment device 420, so that all the heating water in the second heating water outlet pipe 330 flows to the external heating equipment 20 or all to the second bypass pipe 370.
  • At least one of the first flow adjustment device 410 and the second flow adjustment device 420 may also be a three-way valve
  • the first heating water outlet pipe 320, the first bypass pipe 360, and the second heating water outlet pipe 330 and the second bypass pipeline 370 can also be provided with a flow detection device and a flow limiting device, so that the three-way valve can cooperate with the flow limiting device to realize the flow control of the heating water in each of the above pipelines such as the three-way control valve.
  • the heating and hot water device 10 may further include a temperature detection device (not shown in the figure).
  • the temperature detection device is arranged in the domestic water outlet pipe 350 for detecting the temperature of the domestic water in the domestic water outlet pipe 350;
  • the controller controls the second flow adjustment device 420 to close the water flow path between the second flow adjustment device 420 and the second bypass pipe 370, so that the second heating water outlet pipe 330
  • the heating water inside flows to the external heating equipment 20, so that the external heating equipment 20 and the external domestic water supply equipment 30 can be heated at the same time;
  • the controller controls the second flow regulating device 420 so that the heating water in the second heating water outlet pipe 330 at least partly flows to the heating water inlet pipe 310 through the second bypass pipe 370, thereby giving priority to Ensure that the external domestic water supply equipment 30 receives heat.
  • the heating and hot water device 10 may further include a flow detection device (not shown in the figure).
  • the flow detection device is provided in the domestic water inlet pipe 340 or the domestic water outlet pipe 350 for detecting the domestic water inlet pipe 340 or the domestic water outlet pipe 350.
  • the mode selected by the user is both heating and domestic hot water mode
  • the flow of domestic water in the domestic water inlet pipe 340 or domestic water outlet pipe 350 is greater than or equal to the flow threshold, that is, the water outlet device 301 in the external domestic water supply equipment 30 is blocked
  • the external domestic water supply device 30 starts to supply hot water
  • the temperature in the domestic outlet pipe 350 is less than the second temperature threshold, or the temperature in the domestic outlet pipe 350 continues to be greater than or equal to the second temperature threshold for a time less than the time threshold
  • the second flow regulating device 420 is controlled so that the heating water in the second heating water outlet pipe 330 at least partly flows to the heating water inlet pipe 310 through the second bypass pipe 370, thereby reducing or shutting off the heat supply to the external heating equipment 20 and increasing Heating of external domestic water supply equipment 30;
  • the mode selected by the user is both heating and domestic hot water mode
  • the flow of domestic water in the domestic water inlet pipe 340 or domestic water outlet pipe 350 is greater than or equal to the flow threshold
  • the temperature in the domestic outlet pipe 350 is continuously greater than or equal to the second
  • the controller controls the second flow adjustment device 420 so that the heating water in the second heating outlet pipe 330 at least partially flows to the outside
  • the heating equipment 20 realizes simultaneous heating of the external heating equipment 20 and the external domestic water supply equipment 30.
  • the controller controls the second flow adjustment device 420 so that when at least part of the heating water in the second heating water outlet pipe 330 flows to the external heating equipment 20, the flow of the heating water flowing to the external heating equipment 20 can also be gradually increased, so that The fluctuation value of the temperature in the domestic water outlet pipe 350 is smaller than the third temperature threshold, so as to avoid affecting the temperature of the hot water supplied by the external domestic water supply device 30.
  • the controller can further be used to control the second flow regulating device 420 to stop increasing the flow of heating water flowing to the external heating equipment 20 when the heating and hot water device 10 reaches the maximum load, thereby avoiding the power of the heating and hot water device 10 from exceeding the maximum The load causes damage to the components in the heating and hot water device 10.
  • both the first temperature threshold and the second temperature threshold may be the minimum water outlet temperature of the living water preset or set by the user, such as 38°C or 40°C.
  • the third temperature threshold may be 1°C, 2°C, or the like.
  • the water outlet device 301 may be a faucet, a shower nozzle, or the like.
  • the heating and hot water device 10 may further include a domestic water circulating pump 600, and the external domestic water supply device 30 may further include a return water pipe 302, the controller is provided with a zero cold water function, and the return water pipe 302 is connected to the domestic water inlet pipe 340
  • the domestic water outlet pipe 350 is used to form a domestic water circulation loop together with the domestic water inlet pipe 340 and the domestic water outlet pipe 350.
  • the domestic water circulation pump 600 is arranged on the domestic water inlet pipe 340 or the domestic water outlet pipe 350 and is located on the circulation circuit.
  • the controller controls the living water circulation pump 600 to turn on to preheat the living water in the living water inlet pipe 340, the living water outlet pipe 350, and the return water pipe 302.
  • the controller may further be used to control the domestic water circulation pump 600 to turn off when the temperature of the domestic water in the domestic water outlet pipe 350 is greater than or equal to the fourth temperature threshold, and the domestic water outlet pipe 350 is already full of hot water at this time.
  • the controller may be further used to control the domestic water circulation pump 600 to turn on again when the temperature of the domestic water in the domestic water outlet pipe 350 is less than the first temperature threshold.
  • the fourth temperature threshold may be greater than or equal to the preset or user-set minimum outlet temperature of domestic water, and less than the preset or user-set maximum outlet temperature of domestic water, for example, 40°C or 42°C Wait.
  • the controller may also control the living water circulation pump 600 to turn on when the scheduled time is reached, and there is no limitation here.
  • a temperature detection device may also be provided in the domestic water inlet pipe 340 for detecting the temperature of the domestic water in the domestic water pipe 340.
  • the heating power Q required for circulating preheating of the living water in the domestic water inlet pipe 340, the domestic water outlet pipe 350 and the return water pipe 302 can be determined by the temperature T1 of the domestic water in the domestic water pipe 340 and the user
  • the controller may further be used to increase the power of the first heat exchanger 100 by Q when the user selects the zero cold water function, and perform PID (Proportion Integral Differential) according to the temperature of the domestic water in the domestic outlet pipe 350. , Proportional integral derivative) adjustment, where Q is the heating power required for circulating preheating of the domestic water in the domestic water inlet pipe 340, the domestic water outlet pipe 350 and the return water pipe 302.
  • the controller is further configured to set the power of the first heat exchanger 100 to the rated power when the power of the first heat exchanger 100 after the increased power is greater than the maximum load of the first heat exchanger 100.
  • the controller may directly set the power of the first heat exchanger 100 to Q.
  • connection between the return water pipe 302 and the domestic water inlet pipe 340 or the domestic water outlet pipe 350 is close to the domestic water circulating pump 600, so as to limit the flow direction of the domestic water in the return water pipe 302 and avoid the domestic water inlet pipe 340
  • the cold water flows into the domestic water outlet pipe 350 through the return water pipe 302, so as to avoid affecting the water outlet temperature of the external domestic water supply equipment 30.
  • the heating water inlet pipe 310, the first heating water outlet pipe 320, and the second heating water outlet pipe 330 may also be provided with temperature detection devices, and the heating water inlet pipe 310 and the second heating water outlet pipe 330 may also be provided with a flow rate.
  • the detection device and the current limiting device, the domestic water inlet pipe 340 and the domestic water outlet pipe 350 may also be equipped with a current limiting device, so that the controller can be based on the heating water inlet pipe 310, the first heating water outlet pipe 320 and the second heating water outlet pipe 330.
  • the temperature of the heating water and the flow of the heating water in the heating water inlet pipe 310 and the second heating water outlet pipe 330 are controlled.
  • the flow limiting device can be a water proportional valve.
  • the connection between the return water pipe 303 and the domestic water inlet pipe 340 or the domestic water outlet pipe 350 is far away from the domestic water circulation pump 600, and the heating and hot water device 10 may further include a unidirectional circulation device 304,
  • the circulation device 304 is arranged on the return water pipe 303 to make the living water in the return water pipe 303 flow only in the direction of the living water outlet pipe 350 to the living water inlet pipe 340.
  • the one-way flow device 304 may be a one-way valve.
  • the one-way circulation device 304 is provided to prevent the cold water in the domestic water inlet pipe 340 from flowing back into the domestic water outlet pipe 350, so as to avoid affecting the water outlet temperature of the external domestic water supply equipment 30.
  • an embodiment of the control method of the heating and hot water device of the present invention includes:
  • S710 Provide a pure heating mode and/or a pure domestic hot water mode, and provide both heating and domestic hot water modes, and determine whether one of the modes is selected.
  • the flow rate of the heating water flowing to the bypass pipeline is adjusted by the flow adjusting device, which can supply heat to the external domestic water supply equipment and the external heating equipment separately or at the same time according to user needs, and avoid the time that the external domestic water supply equipment is used. Too long affects the heat supply of external heating equipment, and can improve the heating efficiency of the heating and hot water device.
  • another embodiment of the control method of the heating and hot water device includes:
  • S810 Provide a pure heating mode and/or a pure domestic hot water mode, and provide both heating and domestic hot water modes, and determine whether one of the modes is selected.
  • the controller controls the first flow adjustment device in the flow adjustment device to close the water flow path between the first flow adjustment device and the second heat exchanger, so that the first heating output water
  • the heating water in the pipeline flows through the first bypass pipeline to the second heating outlet pipeline
  • the controller controls the second flow adjustment device in the flow adjustment device to close the water flow path between the second flow adjustment device and the second bypass pipeline to The heating water in the second heating water outlet pipe flows to the external heating equipment.
  • the controller controls the first flow adjustment device to close the water flow path between the first flow adjustment device and the first bypass pipe, so that the water flow in the first heating outlet pipe The heating water flows to the second heat exchanger; the controller controls the second flow adjustment device to close the water flow path between the second flow adjustment device and the external heating equipment, so that the heating water in the second heating outlet pipe passes through the second bypass pipe Flow to the heating inlet pipe.
  • the controller controls the first flow adjustment device so that the heating water in the first heating water outlet pipe at least partly flows to the second heat exchanger; the controller controls the second heat exchanger.
  • the flow adjustment device makes the heating water in the second heating water outlet pipe at least partially flow to the external heating equipment.
  • heating and hot water device that implements the control method of the heating and hot water device in this embodiment, refer to the above heating and hot water device embodiment, which will not be repeated here.
  • the flow rate of the heating water flowing to the bypass pipeline is adjusted by the flow adjusting device, which can supply heat to the external domestic water supply equipment and the external heating equipment separately or at the same time according to user needs, and avoid the time that the external domestic water supply equipment is used. Too long affects the heat supply of external heating equipment, and can improve the heating efficiency of the heating and hot water device.

Abstract

一种采暖热水装置（10）及其控制方法，该采暖热水装置（10）包括第一换热器（100）、第二换热器（200）、旁路管道和流量控制装置，第二换热器（200）与第一换热器（100）连接，用于从第一换热器（100）接收采暖水以向外部生活供应设备提供生活热水；第二换热器（200）还用于与外部采暖设备连接，第一换热器（100）用于经第二换热器（200）向外部采暖设备提供采暖水；旁路管道短接于第二换热器（200）和/或外部采暖设备的两端；流量调节装置与旁路管道连接，用于调节流向旁路管道的采暖水的流量。该采暖热水装置（10）能够根据用户需要分别或同时向外部生活水供应设备和外部采暖设备供热，避免因外部生活水供应设备被使用的时间过长而影响外部采暖设备的供热，并且能够提高采暖热水装置（10）的供热效率。

Description

一种采暖热水装置及其控制方法
本申请要求于2019年07月23日提交的申请号为2019106684638，发明名称为“一种采 暖热水装置及其控制方法”的中国专利申请的优先权，其通过引用方式全部并入本申请。
【技术领域】
本发明涉及家用电器技术领域，特别涉及一种采暖热水装置及其控制方法。
【背景技术】
目前普通壁挂炉只能实现向采暖设备供暖，电热水器只能实现向生活水供应设备供应生活热水，因此一般需要配备两套加热设备才能够同时保证暖气和生活热水的供应。而采暖热水装置既能够实现向采暖设备的供暖，又能够实现向生活水供应设备供应生活热水，因此被越来越多的用户接受。
本申请的发明人在长期的研发中发现，目前采暖热水装置在运行过程中会优先供应生活热水，即当用户使用生活热水时，会停止向采暖设备供热，如果用户使用生活热水的时间过长，就会使得室内温度下降，影响采暖效果。
【发明内容】
本发明提供一种采暖热水装置及其控制方法，以解决现有技术中采暖热水装置无法同时提供采暖和生活热水的技术问题。
为解决上述技术问题，本发明采用的一个技术方案是提供一种采暖热水装置，包括：
第一换热器和第二换热器，所述第二换热器与所述第一换热器连接，用于从所述第一换热器接收采暖水以向外部生活水供应设备提供生活热水；所述第二换热器还用于与外部采暖设备连接，所述第一换热器用于经所述第二换热器向所述外部采暖设备提供采暖水；
旁路管道，所述旁路管道短接于所述第二换热器和/或所述外部采暖设备的两端；
流量调节装置，与所述旁路管道连接，用于调节流向所述旁路管道的采暖水的流量。
在一具体实施例中，所述采暖热水装置进一步包括：
采暖入水管道，用于向所述第一换热器输送采暖水；
第一采暖出水管道，用于将经所述第一换热器加热的采暖水输送至所述第二换热器；
第二采暖出水管道，用于将流经所述第二换热器的采暖水输送至外部采暖设备；
生活入水管道，用于向所述第二换热器输送生活水；
生活出水管道，用于输出经所述第二换热器加热的生活水；
所述流量调节装置包括第一流量调节装置，设置于所述第一采暖出水管道上；
所述旁路管道包括第一旁路管道，用于连接所述第一流量调节装置和所述第二采暖出水管道，其中所述第一流量调节装置用于调节流向所述第二换热器的采暖水和流向所述第一旁路管道的采暖水之间的流量分配比例。
在一具体实施例中，所述流量调节装置进一步包括第二流量调节装置，所述旁路管道进一步包括第二旁路管道，所述第二流量调节装置设置于所述第二采暖出水管道上，所述第二旁路管道连接所述第二流量调节装置和所述采暖入水管道；或
所述第二流量调节装置设置于所述采暖入水管道上，所述第二旁路管道连接所述第二流量调节装置和所述第二采暖出水管道；
所述第二流量调节装置用于调节流向所述外部采暖设备的采暖水和流向所述第二旁路管道的采暖水之间的流量分配比例。
在一具体实施例中，所述采暖热水装置进一步包括控制器和采暖循环泵，所述采暖循环泵设置于所述采暖入水管道、第一采暖出水管道或第二采暖出水管道上，所述控制器用于在用户开启所述采暖热水装置时开启所述采暖循环泵，所述控制器设置有多个供水模式，并根据用户选中的模式控制所述采暖循环泵、所述第一流量调节装置和所述第二流量调节装置。
在一具体实施例中，当用户选中的模式为纯采暖模式时，所述控制器控制所述第一流量调节装置关闭所述第一流量调节装置和所述第二换热器之间的水流路径，以使得所述第一采暖出水管道内的采暖水经所述第一旁路管道流向所述第二采暖出水管道；
当用户选中的模式为纯生活热水模式时，所述控制器控制所述第一流量调节装置关闭所述第一流量调节装置和所述第一旁路管道之间的水流路径，以使得所述第一采暖出水管道内的采暖水流向所述第二换热器；
当用户选中的模式为同时提供采暖和生活热水模式，所述控制器控制所述第一流量调节装置，使得所述第一采暖出水管道内的采暖水至少部分流向所述第二换热器。
在一具体实施例中，当用户选中的模式为所述纯采暖模式时，所述控制器控制所述第二流量调节装置关闭所述第二流量调节装置和所述第二旁路管道之间的水流路径，以使得所述第二采暖出水管道内的采暖水流向所述外部采暖设备；
当用户选中的模式为所述纯生活热水模式时，所述控制器控制所述第二流量调节装置关闭所述第二流量调节装置和所述外部采暖设备之间的水流路径，以使得所述第二采暖出水管 道内的采暖水经所述第二旁路管道流向所述采暖入水管道；
当用户选中的模式为所述同时提供采暖和生活热水模式，所述控制器控制所述第二流量调节装置，使得所述第二采暖出水管道内的采暖水至少部分流向所述外部采暖设备。
在一具体实施例中，所述采暖热水装置进一步包括温度检测装置，所述温度检测装置设置于所述生活出水管道内，用于检测所述生活出水管道内的生活水的温度。
在一具体实施例中，当用户选中的模式为同时提供采暖和生活热水模式，并且所述生活水和所述采暖水的所需加热功率之和小于或等于所述采暖热水装置的最大负荷，或者所述生活出水管道内的生活水的温度高于第一温度阈值，所述控制器控制所述第二流量调节装置，以使得所述第二采暖出水管道内的采暖水流向所述外部采暖设备；
所述生活水和所述采暖水的所需加热功率之和大于所述采暖热水装置的最大负荷，或者所述生活出水管道内的生活水的温度低于所述第一温度阈值，所述控制器控制所述第二流量调节装置，以使得所述第二采暖出水管道内的采暖水至少部分经所述第二旁路管道流向所述采暖入水管道。
在一具体实施例中，所述采暖热水装置进一步包括流量检测装置和温度检测装置，所述流量检测装置设置于所述生活入水管道或所述生活出水管道内，用于检测所述生活入水管道或所述生活出水管道内的生活水的流量；所述温度检测装置设置于所述生活出水管道内，用于检测所述生活出水管道内的生活水的温度。
在一具体实施例中，当用户选中的模式为同时提供采暖和生活热水模式，并且所述生活入水管道或所述生活出水管道内的生活水的流量大于或等于流量阈值，所述生活出水管道内的温度小于第二温度阈值，或持续大于或等于第二温度阈值的时间小于时间阈值，所述控制器控制所述第二流量调节装置，以使得所述第二采暖出水管道内的采暖水至少部分流向所述采暖入水管道；
所述生活入水管道或所述生活出水管道内的生活水的流量大于或等于流量阈值，所述生活出水管道内的温度持续大于或等于第二温度阈值的时间大于或等于所述时间阈值，所述控制器控制所述第二流量调节装置，以使得所述第二采暖出水管道内的采暖水至少部分流向所述外部采暖设备。
在一具体实施例中，所述控制器控制所述第二流量调节装置，以使得所述第二采暖出水管道内的采暖水至少部分流向所述外部采暖设备时，使得流向所述外部采暖设备的采暖水的流量逐渐增大，从而使得所述生活出水管道内的温度的波动值小于第三温度阈值，所述控制器进一步用于在所述采暖热水装置达到最大负荷时，控制所述第二流量调节装置停止增大流 向所述外部采暖设备的采暖水的流量。
在一具体实施例中，所述第一流量调节装置和所述第二流量调节装置中的至少一者为三通阀或三通控制阀。
在一具体实施例中，所述采暖热水装置进一步包括控制器和生活水循环泵，外部生活水供应设备分别与所述生活入水管道和所述生活出水管道连接，所述外部生活水供应设备包括回水管道，所述控制器设置有零冷水功能，所述回水管道连接所述生活入水管道和所述生活出水管道，用于与所述生活入水管道和所述生活出水管道共同形成生活水的循环回路，所述生活水循环泵设置于所述生活入水管道或所述生活出水管道上，且位于所述循环回路上；
当用户选中零冷水功能时，所述控制器控制所述生活水循环泵开启，以对所述生活入水管道、所述生活出水管道和所述回水管道内的生活水进行循环预热。
在一具体实施例中，所述采暖热水装置进一步包括温度检测装置，所述温度检测装置设置于所述生活出水管道内，用于检测所述生活出水管道内的生活水的温度，所述控制器进一步用于在所述生活出水管道内的生活水的温度大于或等于第四温度阈值时，控制所述生活水循环泵关闭。
在一具体实施例中，所述控制器进一步用于当用户选中零冷水功能时，将所述第一换热器的功率提高Q，其中，Q为对所述生活入水管道、所述生活出水管道和所述回水管道内的生活水进行循环预热所需的加热功率；所述控制器进一步用于在提高功率后的所述第一换热器的功率大于所述第一换热器的最大负荷时，将所述第一换热器的功率设置为额定功率。
在一具体实施例中，所述回水管道与所述生活入水管道或所述生活出水管道的连接处靠近所述生活水循环泵。
在一具体实施例中，所述回水管道与所述生活入水管道或所述生活出水管道的连接处远离所述生活水循环泵，所述采暖热水装置进一步包括单向流通装置，所述单向流通装置设置于所述回水管道上，用于使得所述回水管道内的生活水只能沿所述生活出水管道向所述生活入水管道的方向流动。
为解决上述技术问题，本发明采用的另一个技术方案是提供一种采暖热水装置的控制方法，包括：
提供纯采暖模式和/或纯生活热水模式、同时提供采暖和生活热水模式，并判断是否有其中一种模式被选中；当用户选中的模式为纯采暖模式时，控制流量调节装置，使得第一换热器产生的采暖水经第一旁路管道流向外部采暖设备；
当用户选中的模式为纯生活热水模式时，控制流量调节装置，使得第一换热器产生的采 暖水流向第二换热器，并经第二旁路管道流回所述第一换热器，以向外部生活水供应设备提供生活热水；
当用户选中的模式为同时提供采暖和生活热水模式，控制流量调节装置，以使得第一换热器产生的采暖水至少部分流向第二换热器，并使得至少部分采暖水流向所述外部采暖设备。
在一具体实施例中，所述方法具体包括：
当用户选中的模式为所述纯采暖模式时，控制器控制所述流量调节装置中的第一流量调节装置关闭所述第一流量调节装置和所述第二换热器之间的水流路径，以使得第一采暖出水管道内的采暖水经所述第一旁路管道流向第二采暖出水管道；
当用户选中的模式为所述纯生活热水模式时，所述控制器控制所述第一流量调节装置关闭所述第一流量调节装置和所述第一旁路管道之间的水流路径，以使得所述第一采暖出水管道内的采暖水流向所述第二换热器；
当用户选中的模式为所述同时提供采暖和生活热水模式，所述控制器控制所述第一流量调节装置，使得所述第一采暖出水管道内的采暖水至少部分流向所述第二换热器。
在一具体实施例中，所述方法具体包括：
当用户选中的模式为所述纯采暖模式时，所述控制器控制所述流量调节装置中的第二流量调节装置关闭所述第二流量调节装置和所述第二旁路管道之间的水流路径，以使得所述第二采暖出水管道内的采暖水流向所述外部采暖设备；
当用户选中的模式为所述纯生活热水模式时，所述控制器控制所述第二流量调节装置关闭所述第二流量调节装置和所述外部采暖设备之间的水流路径，以使得所述第二采暖出水管道内的采暖水经所述第二旁路管道流向采暖入水管道；
当用户选中的模式为所述同时提供采暖和生活热水模式，所述控制器控制所述第二流量调节装置，使得所述第二采暖出水管道内的采暖水至少部分流向所述外部采暖设备。
本发明通过将采暖热水装置的第一换热器和第二换热器串联设置，并在第二换热器和/或外部外暖设置的两端短接旁路管道，并通过流量调节装置调节流向旁路管道的采暖水的流量，能够根据用户需要分别或同时向外部生活水供应设备和外部采暖设备供热，避免因外部生活水供应设备被使用的时间过长而影响外部采暖设备的供热，并且能够提高采暖热水装置的供热效率。
【附图说明】
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附 图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图，其中：
图1是本发明采暖热水装置一实施例的结构示意图；
图2是本发明采暖热水装置另一实施例的结构示意图；
图3是本发明采暖热水装置另一实施例的结构示意图；
图4是本发明采暖热水装置另一实施例的结构示意图；
图5是本发明采暖热水装置的控制方法一实施例的流程示意图。
【具体实施方式】
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，均属于本发明保护的范围。
本申请中的术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。而术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
参见图1，本发明采暖热水装置10一实施例包括第一换热器100、第二换热器200、旁路管道和流量调节装置，第二换热器200与第一换热器100连接，用于从第一换热器100接收采暖水以向外部生活水供应设备(图中未示出)提供生活热水；第二换热器200还用于与外部采暖设备(图中未示出)连接，第一换热器100用于经第二换热器200向外部采暖设备提供采暖水；旁路管道短接于第二换热器200和/或外部采暖设备的两端；流量调节装置与旁路管道连接，用于调节流向旁路管道的采暖水的流量。
本发明实施例通过将采暖热水装置的第一换热器和第二换热器串联设置，并在第二换热 器和/或外部外暖设置的两端短接旁路管道，并通过流量调节装置调节流向旁路管道的采暖水的流量，能够根据用户需要分别或同时向外部生活水供应设备和外部采暖设备供热，避免因外部生活水供应设备被使用的时间过长而影响外部采暖设备的供热，并且能够提高采暖热水装置的供热效率。
在本实施例中，采暖热水装置10进一步包括采暖入水管道310、第一采暖出水管道320、第二采暖出水管道330、生活入水管道340、生活出水管道350、第一流量调节装置410和第一旁路管道360，其中，采暖入水管道310用于向第一换热器100输送采暖水；第一采暖出水管道320用于将经第一换热器100加热的采暖水输送至第二换热器200，以作为第二换热器200的热源；第一采暖出水管道320用于将流经第二换热器200的采暖水输送至外部采暖设备(图中未示出)；生活入水管道340用于向第二换热器200输送生活水；生活出水管道350用于输出经第二换热器200加热的生活水；流量调节装置包括第一流量调节装置410，设置于第一采暖出水管道320上；旁路管道包括第一旁路管道360，用于连接第一流量调节装置410和第二采暖出水管道330，其中第一流量调节装置410用于调节经第一流量调节装置410流向第二换热器200的采暖水和经第一流量调节装置410流向第一旁路管道360的采暖水之间的流量分配比例。
在本实施例中，第一换热器100可以为通过燃烧器、热阻丝、电加热棒、冷凝器等加热器进行加热的换热器。
一并参见图2，在本实施例中，流量调节装置进一步包括第二流量调节装置420，旁路管道进一步包括第二旁路管道370，第二流量调节装置420设置于第二采暖出水管道330上，第二旁路管道370连接第二流量调节装置420和采暖入水管道310，第二流量调节装置420用于调节经第二流量调节装置420流向外部采暖设备20的采暖水和经第二流量调节装置420流向第二旁路管道370的采暖水之间的流量分配比例。
参见图3，在另一具体实施例中，第二流量调节装置430还可以设置于采暖入水管道310上，第二旁路管道370连接第二流量调节装置430和第二采暖出水管道330，第二流量调节装置430用于调节流向外部采暖设备(图中未示出)的采暖水和流向第二旁路管道370的采暖水之间的流量分配比例。
复参见图1和图2，在本实施例中，采暖热水装置10进一步包括控制器(图中未示出)和采暖循环泵500，采暖循环泵500设置于采暖入水管道310上，控制器用于在用户开启采暖热水装置10时开启采暖循环泵500，控制器设置有多个供水模式，并根据用户选中的模式控制采暖循环泵500、第一流量调节装置410和第二流量调节装置420。
在其他实施例中，采暖循环泵500也可以设置于第一采暖出水管道320或第二采暖出水管道330上，在此不做限制。
在本实施例中，控制器设置的多个供水模式包括纯采暖模式、纯生活热水模式和同时提供采暖和生活热水模式，当用户选中的模式为纯采暖模式时，控制器控制第一流量调节装置410关闭第一流量调节装置410和第二换热器200之间的水流路径，以使得第一采暖出水管道320内的采暖水经第一旁路管道360流向第二采暖出水管道330，控制器控制第二流量调节装置420关闭第二流量调节装置420和第二旁路管道370之间的水流路径，以使得第二采暖出水管道330内的采暖水流向外部采暖设备20，从而使得采暖热水装置10只向分别与生活入水管道340和生活出水管道350连接的外部采暖设备20供热；
当用户选中的模式为纯生活热水模式时，控制器控制第一流量调节装置410关闭第一流量调节装置410和第一旁路管道360之间的水流路径，以使得第一采暖出水管道320内的采暖水流向第二换热器200；控制器控制第二流量调节装置420关闭第二流量调节装置420和外部采暖设备20之间的水流路径，以使得第二采暖出水管道330内的采暖水经第二旁路管道370流向采暖入水管道310，从而使得采暖热水装置10只向外部生活水供应设备30供热；
当用户选中的模式为同时提供采暖和生活热水模式，控制器控制第一流量调节装置410，使得第一采暖出水管道320内的采暖水至少部分流向第二换热器200，控制器控制第二流量调节装置420，使得第二采暖出水管道330内的采暖水至少部分流向外部采暖设备20。例如，当外部生活水供应设备30需要的加热功率较高，则使得第一采暖出水管道320内的采暖水全部流向第二换热器200；当外部生活水供应设备30需要的加热功率较低，则使得第一采暖出水管道320内的部分采暖水流向第二换热器200，另一部分采暖水直接通过第一旁路管道360流向第二采暖出水管道330。又例如，当外部采暖设备20需要的加热功率较高，则使得第二采暖出水管道330内的采暖水全部流向外部采暖设备20；当外部采暖设备20需要的加热功率较低，则使得第二采暖出水管道330内的部分采暖水流向外部采暖设备20，另一部分采暖水直接通过第二旁路管道370回到采暖入水管道310，从而能够提高采暖热水装置10的热能利用率。
在本实施例中，第一流量调节装置410和第二流量调节装置420中的至少一者可以为三通控制阀。三通控制阀能够控制其三个端口完全开启、完全关闭或部分开启，控制器控制第一流量调节装置410，可以使得第一采暖出水管道320内的采暖水全部流向第二采暖出水管道330、全部流向第一旁路管道360或部分流向第二采暖出水管道330，另一部分流向第一旁路管道360；控制器控制第二流量调节装置420，可以使得第二采暖出水管道330内的采暖水 全部流向外部采暖设备20、全部流向第二旁路管道370或部分流向外部采暖设备20，另一部分流向第二旁路管道370。
在其他实施例中，第一流量调节装置410和第二流量调节装置420中的至少一者还可以为三通阀。三通阀能够控制其三个端口完全开启或完全关闭，控制器控制第一流量调节装置410，可以使得第一采暖出水管道320内的采暖水全部流向第二采暖出水管道330或全部流向第一旁路管道360；控制器控制第二流量调节装置420，可以使得第二采暖出水管道330内的采暖水全部流向外部采暖设备20或全部流向第二旁路管道370。
在其他实施例中，第一流量调节装置410和第二流量调节装置420中的至少一者还可以为三通阀，第一采暖出水管道320、第一旁路管道360、第二采暖出水管道330和第二旁路管道370内还可以设置流量检测装置和限流装置，从而通过三通阀与限流装置配合以实现如三通控制阀对以上各个管道内的采暖水的流量控制。
在本实施例中，采暖热水装置10进一步可以包括温度检测装置(图中未示出)，温度检测装置设置于生活出水管道350内，用于检测生活出水管道350内的生活水的温度；
当用户选中的模式为同时提供采暖和生活热水模式，并且生活水的所需加热功率和采暖水的所需加热功率之和小于或等于采暖热水装置10的最大负荷，或者生活出水管道350内的生活水的温度高于第一温度阈值，控制器控制第二流量调节装置420关闭第二流量调节装置420和第二旁路管道370之间的水流路径，以使得第二采暖出水管道330内的采暖水流向外部采暖设备20，从而使得外部采暖设备20和外部生活水供应设备30能够同时得到供热；
当用户选中的模式为同时提供采暖和生活热水模式，并且生活水的所需加热功率和采暖水的所需加热功率之和大于采暖热水装置10的最大负荷，或者生活出水管道350内的生活水的温度低于第一温度阈值，控制器控制第二流量调节装置420，以使得第二采暖出水管道330内的采暖水至少部分经第二旁路管道370流向采暖入水管道310，从而优先保证外部生活水供应设备30得到供热。
在本实施例中，采暖热水装置10进一步可以包括流量检测装置(图中未示出)，流量检测装置设置于生活入水管道340或生活出水管道350内，用于检测生活入水管道340或生活出水管道350内的生活水的流量；
当用户选中的模式为同时提供采暖和生活热水模式，并且生活入水管道340或生活出水管道350内的生活水的流量大于或等于流量阈值，即外部生活水供应设备30中的出水装置301被打开，外部生活水供应设备30开始供应热水，生活出水管道350内的温度小于第二温度阈值，或生活出水管道350内的温度持续大于或等于第二温度阈值的时间小于时间阈值， 控制器控制第二流量调节装置420，以使得第二采暖出水管道330内的采暖水至少部分经第二旁路管道370流向采暖入水管道310，从而减少或关闭对外部采暖设备20的供热，增加对外部生活水供应设备30的供热；
当用户选中的模式为同时提供采暖和生活热水模式，并且生活入水管道340或生活出水管道350内的生活水的流量大于或等于流量阈值，生活出水管道350内的温度持续大于或等于第二温度阈值的时间大于或等于时间阈值，则外部生活水供应设备30供应的热水温度稳定，控制器控制第二流量调节装置420，以使得第二采暖出水管道330内的采暖水至少部分流向外部采暖设备20，实现对外部采暖设备20和外部生活水供应设备30同时供热。
控制器控制第二流量调节装置420，以使得第二采暖出水管道330内的采暖水至少部分流向外部采暖设备20时，还可以使得流向外部采暖设备20的采暖水的流量逐渐增大，从而使得生活出水管道350内的温度的波动值小于第三温度阈值，避免对外部生活水供应设备30供应的热水温度产生影响。控制器进一步可以用于在采暖热水装置10达到最大负荷时，控制第二流量调节装置420停止增大流向外部采暖设备20的采暖水的流量，从而避免因采暖热水装置10的功率超过最大负荷对采暖热水装置10内的器件造成损坏。
在本实施例中，第一温度阈值、第二温度阈值都可以为预设或用户设定的生活水的最低出水温度，例如38℃或40℃等。第三温度阈值可以为1℃或2℃等。
在本实施例中，出水装置301可以为水龙头、淋浴喷头等。
在本实施例中，采暖热水装置10进一步可以包括生活水循环泵600，外部生活水供应设备30进一步可以包括回水管道302，控制器设置有零冷水功能，回水管道302连接生活入水管道340和生活出水管道350，用于与生活入水管道340和生活出水管道350共同形成生活水的循环回路，生活水循环泵600设置于生活入水管道340或生活出水管道350上，且位于循环回路上。
当用户选中零冷水功能时，控制器控制生活水循环泵600开启，以对生活入水管道340、生活出水管道350和回水管道302内的生活水进行循环预热。控制器进一步可以用于在生活出水管道350内的生活水的温度大于或等于第四温度阈值时，控制生活水循环泵600关闭，此时生活出水管道350内已经充满热水。控制器进一步可以用于在生活出水管道350内的生活水的温度小于第一温度阈值时，控制生活水循环泵600再次开启。
在本实施例中，第四温度阈值可以大于或等于预设或用户设定的生活水的最低出水温度，并且小于预设或用户设定的生活水的最高出水温度，例如40℃或42℃等。
在其他实施例中，控制器也可以在达到预约时间时控制生活水循环泵600开启，在此不 作限制。
在本实施例中，生活入水管道340内也可以设置有温度检测装置，用于检测生活入水管道340内的生活水的温度。
在本实施例中，对生活入水管道340、生活出水管道350和回水管道302内的生活水进行循环预热所需的加热功率Q可以通过生活入水管道340内的生活水的温度T1、用户设定的生活水的出水温度T2和生活入水管道340或生活出水管道350内的生活水的流量q计算得到，具体的，Q＝C*(T2-T1)*q，其中，C为水的比热容。
在本实施例中，控制器进一步可以用于当用户选中零冷水功能时，将第一换热器100的功率提高Q，并根据生活出水管道350内的生活水的温度进行PID(Proportion Integral Differential，比例积分微分)调节，其中，Q为对生活入水管道340、生活出水管道350和回水管道302内的生活水进行循环预热所需的加热功率。控制器进一步用于在提高功率后的第一换热器100的功率大于第一换热器100的最大负荷时，将第一换热器100的功率设置为额定功率。
在本实施例中，当采暖热水装置10处于待机状态时，控制器可以直接将第一换热器100的功率设置为Q。
在本实施例中，回水管道302与生活入水管道340或生活出水管道350的连接处靠近生活水循环泵600，从而能够限制回水管道302内的生活水的流动方向，避免生活入水管道340内的冷水经回水管道302流入生活出水管道350中，从而能够避免影响外部生活水供应设备30的出水温度。
在本实施例中，采暖入水管道310、第一采暖出水管道320、第二采暖出水管道330内也可以设置有温度检测装置，采暖入水管道310、第二采暖出水管道330内也可以设置有流量检测装置和限流装置，生活入水管道340和生活出水管道350内也可以设置有限流装置，以使得控制器能够根据采暖入水管道310、第一采暖出水管道320和第二采暖出水管道330内的采暖水的温度、采暖入水管道310和第二采暖出水管道330内的采暖水的流量进行控制。其中，限流装置可以为水比例阀。
参见图4，在另一具体实施例中，回水管道303与生活入水管道340或生活出水管道350的连接处远离生活水循环泵600，采暖热水装置10进一步可以包括单向流通装置304，单向流通装置304设置于回水管道303上，用于使得回水管道303内的生活水只能沿生活出水管道350向生活入水管道340的方向流动。本实施例中，单向流通装置304可以为单向阀。本实施例通过设置单向流通装置304，能够防止生活入水管道340中的冷水倒流至生活出水管 道350中，从而能够避免影响外部生活水供应设备30的出水温度。
参见图5，本发明采暖热水装置的控制方法一实施例包括：
S710、提供纯采暖模式和/或纯生活热水模式、同时提供采暖和生活热水模式，并判断是否有其中一种模式被选中。
S720、当用户选中的模式为纯采暖模式时，控制流量调节装置，使得第一换热器产生的采暖水经第一旁路管道流向外部采暖设备。
S730、当用户选中的模式为纯生活热水模式时，控制流量调节装置，使得第一换热器产生的采暖水流向第二换热器，并经第二旁路管道流回第一换热器，以向外部生活水供应设备提供生活热水。
S740、当用户选中的模式为同时提供采暖和生活热水模式，控制流量调节装置，以使得第一换热器产生的采暖水至少部分流向第二换热器，并使得至少部分采暖水流向外部采暖设备。
本发明实施例通过流量调节装置调节流向旁路管道的采暖水的流量，能够根据用户需要分别或同时向外部生活水供应设备和外部采暖设备供热，避免因外部生活水供应设备被使用的时间过长而影响外部采暖设备的供热，并且能够提高采暖热水装置的供热效率。
本实施例中，采暖热水装置的控制方法另一实施例包括：
S810、提供纯采暖模式和/或纯生活热水模式、同时提供采暖和生活热水模式，并判断是否有其中一种模式被选中。
S820、当用户选中的模式为纯采暖模式时，控制器控制流量调节装置中的第一流量调节装置关闭第一流量调节装置和第二换热器之间的水流路径，以使得第一采暖出水管道内的采暖水经第一旁路管道流向第二采暖出水管道；控制器控制流量调节装置中的第二流量调节装置关闭第二流量调节装置和第二旁路管道之间的水流路径，以使得第二采暖出水管道内的采暖水流向外部采暖设备。
S830、当用户选中的模式为纯生活热水模式时，控制器控制第一流量调节装置关闭第一流量调节装置和第一旁路管道之间的水流路径，以使得第一采暖出水管道内的采暖水流向第二换热器；控制器控制第二流量调节装置关闭第二流量调节装置和外部采暖设备之间的水流路径，以使得第二采暖出水管道内的采暖水经第二旁路管道流向采暖入水管道。
S840、当用户选中的模式为同时提供采暖和生活热水模式，控制器控制第一流量调节装置，使得第一采暖出水管道内的采暖水至少部分流向第二换热器；控制器控制第二流量调节装置，使得第二采暖出水管道内的采暖水至少部分流向外部采暖设备。
具体的，本实施例中实现采暖热水装置的控制方法的采暖热水装置参见上述采暖热水装置实施例，在此不再赘述。
本发明实施例通过流量调节装置调节流向旁路管道的采暖水的流量，能够根据用户需要分别或同时向外部生活水供应设备和外部采暖设备供热，避免因外部生活水供应设备被使用的时间过长而影响外部采暖设备的供热，并且能够提高采暖热水装置的供热效率。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (20)

  1. 一种采暖热水装置，其特征在于，包括：
    第一换热器和第二换热器，所述第二换热器与所述第一换热器连接，用于从所述第一换热器接收采暖水以向外部生活水供应设备提供生活热水；所述第二换热器还用于与外部采暖设备连接，所述第一换热器用于经所述第二换热器向所述外部采暖设备提供采暖水；
    旁路管道，所述旁路管道短接于所述第二换热器和/或所述外部采暖设备的两端；
    流量调节装置，与所述旁路管道连接，用于调节流向所述旁路管道的采暖水的流量。
  2. 根据权利要求1所述的采暖热水装置，其特征在于，所述采暖热水装置进一步包括：
    采暖入水管道，用于向所述第一换热器输送采暖水；
    第一采暖出水管道，用于将经所述第一换热器加热的采暖水输送至所述第二换热器；
    第二采暖出水管道，用于将流经所述第二换热器的采暖水输送至外部采暖设备；
    生活入水管道，用于向所述第二换热器输送生活水；
    生活出水管道，用于输出经所述第二换热器加热的生活水；
    所述流量调节装置包括第一流量调节装置，设置于所述第一采暖出水管道上；
    所述旁路管道包括第一旁路管道，用于连接所述第一流量调节装置和所述第二采暖出水管道，其中所述第一流量调节装置用于调节流向所述第二换热器的采暖水和流向所述第一旁路管道的采暖水之间的流量分配比例。
  3. 根据权利要求2所述的采暖热水装置，其特征在于，所述流量调节装置进一步包括第二流量调节装置，所述旁路管道进一步包括第二旁路管道，所述第二流量调节装置设置于所述第二采暖出水管道上，所述第二旁路管道连接所述第二流量调节装置和所述采暖入水管道；或
    所述第二流量调节装置设置于所述采暖入水管道上，所述第二旁路管道连接所述第二流量调节装置和所述第二采暖出水管道；
    所述第二流量调节装置用于调节流向所述外部采暖设备的采暖水和流向所述第二旁路管道的采暖水之间的流量分配比例。
  4. 根据权利要求3所述的采暖热水装置，其特征在于，所述采暖热水装置进一步包括控制器和采暖循环泵，所述采暖循环泵设置于所述采暖入水管道、第一采暖出水管道或第二采暖出水管道上，所述控制器用于在用户开启所述采暖热水装置时开启所述采暖循环泵，所述控制器设置有多个供水模式，并根据用户选中的模式控制所述采暖循环泵、所述第一流量调 节装置和所述第二流量调节装置。
  5. 根据权利要求4所述的采暖热水装置，其特征在于，当用户选中的模式为纯采暖模式时，所述控制器控制所述第一流量调节装置关闭所述第一流量调节装置和所述第二换热器之间的水流路径，以使得所述第一采暖出水管道内的采暖水经所述第一旁路管道流向所述第二采暖出水管道；
    当用户选中的模式为纯生活热水模式时，所述控制器控制所述第一流量调节装置关闭所述第一流量调节装置和所述第一旁路管道之间的水流路径，以使得所述第一采暖出水管道内的采暖水流向所述第二换热器；
    当用户选中的模式为同时提供采暖和生活热水模式，所述控制器控制所述第一流量调节装置，使得所述第一采暖出水管道内的采暖水至少部分流向所述第二换热器。
  6. 根据权利要求5所述的采暖热水装置，其特征在于，当用户选中的模式为所述纯采暖模式时，所述控制器控制所述第二流量调节装置关闭所述第二流量调节装置和所述第二旁路管道之间的水流路径，以使得所述第二采暖出水管道内的采暖水流向所述外部采暖设备；
    当用户选中的模式为所述纯生活热水模式时，所述控制器控制所述第二流量调节装置关闭所述第二流量调节装置和所述外部采暖设备之间的水流路径，以使得所述第二采暖出水管道内的采暖水经所述第二旁路管道流向所述采暖入水管道；
    当用户选中的模式为所述同时提供采暖和生活热水模式，所述控制器控制所述第二流量调节装置，使得所述第二采暖出水管道内的采暖水至少部分流向所述外部采暖设备。
  7. 根据权利要求6所述的采暖热水装置，其特征在于，所述采暖热水装置进一步包括温度检测装置，所述温度检测装置设置于所述生活出水管道内，用于检测所述生活出水管道内的生活水的温度。
  8. 根据权利要求7所述的采暖热水装置，其特征在于，当用户选中的模式为同时提供采暖和生活热水模式，并且所述生活水和所述采暖水的所需加热功率之和小于或等于所述采暖热水装置的最大负荷，或者所述生活出水管道内的生活水的温度高于第一温度阈值，所述控制器控制所述第二流量调节装置，以使得所述第二采暖出水管道内的采暖水流向所述外部采暖设备；
    所述生活水所述采暖水的所需加热功率之和大于所述采暖热水装置的最大负荷，或者所述生活出水管道内的生活水的温度低于所述第一温度阈值，所述控制器控制所述第二流量调节装置，以使得所述第二采暖出水管道内的采暖水至少部分经所述第二旁路管道流向所述采暖入水管道。
  9. 根据权利要求6所述的采暖热水装置，其特征在于，所述采暖热水装置进一步包括流量检测装置和温度检测装置，所述流量检测装置设置于所述生活入水管道或所述生活出水管道内，用于检测所述生活入水管道或所述生活出水管道内的生活水的流量；所述温度检测装置设置于所述生活出水管道内，用于检测所述生活出水管道内的生活水的温度。
  10. 根据权利要求9所述的采暖热水装置，其特征在于，当用户选中的模式为同时提供采暖和生活热水模式，并且所述生活入水管道或所述生活出水管道内的生活水的流量大于或等于流量阈值，所述生活出水管道内的温度小于第二温度阈值，或持续大于或等于第二温度阈值的时间小于时间阈值，所述控制器控制所述第二流量调节装置，以使得所述第二采暖出水管道内的采暖水至少部分流向所述采暖入水管道；
    所述生活入水管道或所述生活出水管道内的生活水的流量大于或等于流量阈值，所述生活出水管道内的温度持续大于或等于第二温度阈值的时间大于或等于所述时间阈值，所述控制器控制所述第二流量调节装置，以使得所述第二采暖出水管道内的采暖水至少部分流向所述外部采暖设备。
  11. 根据权利要求10所述的采暖热水装置，其特征在于，所述控制器控制所述第二流量调节装置，以使得所述第二采暖出水管道内的采暖水至少部分流向所述外部采暖设备时，使得流向所述外部采暖设备的采暖水的流量逐渐增大，从而使得所述生活出水管道内的温度的波动值小于第三温度阈值，所述控制器进一步用于在所述采暖热水装置达到最大负荷时，控制所述第二流量调节装置停止增大流向所述外部采暖设备的采暖水的流量。
  12. 根据权利要求3所述的采暖热水装置，其特征在于，所述第一流量调节装置和所述第二流量调节装置中的至少一者为三通阀或三通控制阀。
  13. 根据权利要求2所述的采暖热水装置，其特征在于，所述采暖热水装置进一步包括控制器和生活水循环泵，外部生活水供应设备分别与所述生活入水管道和所述生活出水管道连接，所述外部生活水供应设备包括回水管道，所述控制器设置有零冷水功能，所述回水管道连接所述生活入水管道和所述生活出水管道，用于与所述生活入水管道和所述生活出水管道共同形成生活水的循环回路，所述生活水循环泵设置于所述生活入水管道或所述生活出水管道上，且位于所述循环回路上；
    当用户选中零冷水功能时，所述控制器控制所述生活水循环泵开启，以对所述生活入水管道、所述生活出水管道和所述回水管道内的生活水进行循环预热。
  14. 根据权利要求13所述的采暖热水装置，其特征在于，
    所述采暖热水装置进一步包括温度检测装置，所述温度检测装置设置于所述生活出水管 道内，用于检测所述生活出水管道内的生活水的温度，所述控制器进一步用于在所述生活出水管道内的生活水的温度大于或等于第四温度阈值时，控制所述生活水循环泵关闭。
  15. 根据权利要求14所述的采暖热水装置，其特征在于，所述控制器进一步用于当用户选中零冷水功能时，将所述第一换热器的功率提高Q，其中，Q为对所述生活入水管道、所述生活出水管道和所述回水管道内的生活水进行循环预热所需的加热功率；所述控制器进一步用于在提高功率后的所述第一换热器的功率大于所述第一换热器的最大负荷时，将所述第一换热器的功率设置为额定功率。
  16. 根据权利要求14所述的采暖热水装置，其特征在于，所述回水管道与所述生活入水管道或所述生活出水管道的连接处靠近所述生活水循环泵。
  17. 根据权利要求14所述的采暖热水装置，其特征在于，所述回水管道与所述生活入水管道或所述生活出水管道的连接处远离所述生活水循环泵，所述采暖热水装置进一步包括单向流通装置，所述单向流通装置设置于所述回水管道上，用于使得所述回水管道内的生活水只能沿所述生活出水管道向所述生活入水管道的方向流动。
  18. 一种采暖热水装置的控制方法，其特征在于，包括：
    提供纯采暖模式和/或纯生活热水模式、同时提供采暖和生活热水模式，并判断是否有其中一种模式被选中；当用户选中的模式为纯采暖模式时，控制流量调节装置，使得第一换热器产生的采暖水经第一旁路管道流向外部采暖设备；
    当用户选中的模式为纯生活热水模式时，控制流量调节装置，使得第一换热器产生的采暖水流向第二换热器，并经第二旁路管道流回所述第一换热器，以向外部生活水供应设备提供生活热水；
    当用户选中的模式为同时提供采暖和生活热水模式，控制流量调节装置，以使得第一换热器产生的采暖水至少部分流向第二换热器，并使得至少部分采暖水流向所述外部采暖设备。
  19. 根据权利要求18所述的方法，其特征在于，所述方法具体包括：
    当用户选中的模式为所述纯采暖模式时，控制器控制所述流量调节装置中的第一流量调节装置关闭所述第一流量调节装置和所述第二换热器之间的水流路径，以使得第一采暖出水管道内的采暖水经所述第一旁路管道流向第二采暖出水管道；
    当用户选中的模式为所述纯生活热水模式时，所述控制器控制所述第一流量调节装置关闭所述第一流量调节装置和所述第一旁路管道之间的水流路径，以使得所述第一采暖出水管道内的采暖水流向所述第二换热器；
    当用户选中的模式为所述同时提供采暖和生活热水模式，所述控制器控制所述第一流量 调节装置，使得所述第一采暖出水管道内的采暖水至少部分流向所述第二换热器。
  20. 根据权利要求19所述的方法，其特征在于，所述方法具体包括：
    当用户选中的模式为所述纯采暖模式时，所述控制器控制所述流量调节装置中的第二流量调节装置关闭所述第二流量调节装置和所述第二旁路管道之间的水流路径，以使得所述第二采暖出水管道内的采暖水流向所述外部采暖设备；
    当用户选中的模式为所述纯生活热水模式时，所述控制器控制所述第二流量调节装置关闭所述第二流量调节装置和所述外部采暖设备之间的水流路径，以使得所述第二采暖出水管道内的采暖水经所述第二旁路管道流向采暖入水管道；
    当用户选中的模式为所述同时提供采暖和生活热水模式，所述控制器控制所述第二流量调节装置，使得所述第二采暖出水管道内的采暖水至少部分流向所述外部采暖设备。
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