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WO2021180137A1 - 壁挂炉热水系统 - Google Patents

壁挂炉热水系统 Download PDF

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Publication number
WO2021180137A1
WO2021180137A1 PCT/CN2021/080044 CN2021080044W WO2021180137A1 WO 2021180137 A1 WO2021180137 A1 WO 2021180137A1 CN 2021080044 W CN2021080044 W CN 2021080044W WO 2021180137 A1 WO2021180137 A1 WO 2021180137A1
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WO
WIPO (PCT)
Prior art keywords
water
wall
hung boiler
solar
water source
Prior art date
Application number
PCT/CN2021/080044
Other languages
English (en)
French (fr)
Inventor
孙冰冰
罗娟
袁永
田建均
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 date
Application filed by 芜湖美的厨卫电器制造有限公司, 美的集团股份有限公司 filed Critical 芜湖美的厨卫电器制造有限公司
Publication of WO2021180137A1 publication Critical patent/WO2021180137A1/zh

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Classifications

    • 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
    • F24H9/00—Details
    • F24H9/20—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
    • F24D15/00—Other domestic- or space-heating systems
    • F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
    • 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
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/156—Reducing the quantity of energy consumed; Increasing efficiency
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/215—Temperature of the water before heating
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/238—Flow rate
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F24H15/32—Control of valves of switching valves
    • 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
    • F24H9/00—Details
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Definitions

  • the invention relates to a water supply facility, in particular to a wall-hung boiler hot water system.
  • Solar energy can be converted into heat energy to heat water from low temperature to high temperature to meet people's hot water use in life and production.
  • solar energy is greatly affected by weather conditions, resulting in unsustainable energy supply.
  • solar water cannot be used when the solar irradiance season does not reach the temperature of domestic hot water.
  • the heating load in winter is relatively large.
  • gas is used for heating.
  • the direct use of gas as heating energy requires a large amount and high cost. Even if the user can afford it, it will cause a heavy burden on the supply of natural gas. , At the same time it will cause serious pollution to the atmosphere.
  • a wall-hung boiler and solar energy integration system includes a wall-hung boiler, a hot water storage tank and a solar heat collector.
  • the domestic water interface end of the wall-hung boiler and the solar heat collection device pass The two water inlet and outlet pipes are connected to the hot water storage tank, and the heating interface end of the wall-hung boiler is connected with the external domestic heating pipe through the heating pipe;
  • the hot water outlet, the hot water outlet is connected with a hot water pipe, the hot water pipe is provided with a domestic hot water constant temperature component that is convenient for adjusting the water temperature.
  • the hot water storage tank is connected.
  • the system is reasonable in design and convenient to use.
  • the technical problem to be solved by the present invention is to provide a wall-hung boiler hot water system, which can select higher temperature water to enter the wall-hung boiler, thereby achieving the purpose of energy saving.
  • the present invention provides a wall-hung boiler hot water system.
  • the wall-hung boiler hot water system includes a wall-hung boiler, a first water source and a second water source, and the wall-hung boiler has a water inlet for controlling the The water inlet switching unit of the wall-hung boiler is connected between the first water source and the second water source so that the water entering the wall-hung boiler from the water inlet of the wall-hung boiler is the first High temperature water in the water source and the second water source.
  • the water inlet switching unit includes a controller, valves located in each pipeline, and temperature sensors located in the first water source and the second water source, and each of the valves and the temperature sensors are connected to each other.
  • the controller is connected.
  • a first water source outlet valve is provided between the water outlet end of the first water source and the water inlet end of the wall-hung boiler, and between the water outlet end of the second water source and the water inlet end of the wall-hung boiler Equipped with a second water source outlet valve.
  • the water outlet end of the first water source and the water outlet end of the second water source are connected to the water inlet end of the wall-hung boiler through a three-way valve.
  • the valve is a solenoid valve.
  • the controller is located inside or outside the wall-hung boiler.
  • a water flow sensor is provided at the water inlet of the wall-hung boiler.
  • the first water source is a solar water heater
  • the second water source is cold water
  • a solar water replenishment valve is provided on the solar water replenishment pipeline of the solar water heater.
  • the present invention achieves the following beneficial effects:
  • the water entering the wall-hung boiler from the water inlet end of the wall-hung boiler is the high-temperature water in the first water source and the second water source through the water inlet switching unit, so as to reduce the energy consumption of the wall-hung boiler and achieve the purpose of energy saving;
  • the hot water system of the present invention does not substantially change the main pipeline of the wall-hung boiler, only that a water inlet switching unit is connected between the wall-hung boiler and the water source, and the function of the water terminal to output hot water in real time basically borrows the original function.
  • the pipeline is realized without the need to lay an independent water pipeline, which ensures the simplicity and reliability of the pipeline structure of the hot water system;
  • each valve, temperature sensor, etc. are automatically controlled by the controller, which has a high degree of automation and is convenient for users to use.
  • FIG. 1 is a schematic diagram of the structure of the first embodiment of the present invention
  • Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
  • Fig. 3 is a schematic structural diagram of a third embodiment of the present invention.
  • the arrow in the figure is the direction of water flow.
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; It is a direct connection or an indirect connection through an intermediary, and it can be a connection between two elements or an interaction relationship between two elements.
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; It is a direct connection or an indirect connection through an intermediary, and it can be a connection between two elements or an interaction relationship between two elements.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the terms “first” and “second” are limited to The “second” feature may explicitly or implicitly include one or more of the features.
  • the wall-hung boiler hot water system of the present invention includes a wall-hung boiler 5, a first water source and a second water source.
  • the water inlet switching unit is connected between the first water source and the second water source so that the water entering the wall-hung boiler 5 from the water inlet end of the wall-hung boiler 5 is the first water source and the water High temperature water in the second water source.
  • the first water source can be a solar water heater or other water heaters
  • the second water source can be tap water or other cold water.
  • Fig. 1 is a first embodiment of the present invention.
  • the wall-hung boiler hot water system includes a solar water heater 1 and a wall-hung boiler 5 connected in series therewith.
  • the water outlet of the solar water heater 1 is connected to a solar hot water pipe 14
  • the water inlet end of the wall-hung boiler 5 enables the water in the water storage tank 11 of the solar water heater 1 to enter the wall-hung boiler 5.
  • the water inlet end of the solar water heater 1 and the water inlet end of the wall-hung boiler 5 are respectively connected to the cold water pipeline 2, and the solar water heater 1 and the wall-hung boiler 5 can respectively enter water through the cold water pipeline 2;
  • the pipeline 2 is connected to the water inlet end of the solar water heater 1 through the solar water supply pipeline 15, as shown in Figure 1, because the water inlet and outlet of the solar water heater 1 are generally not synchronized, so the solar water supply pipeline 15 can be connected to the solar water heater.
  • the 14 parts of the hot water pipeline overlap to achieve the purpose of saving material costs;
  • the water inlet end of the wall-hung boiler 5 is provided with a water inlet switching unit, and the water inlet switching unit is used to control the water inlet of the wall-hung boiler 5 so that the water enters the wall-hung boiler 5 from the water inlet end of the wall-hung boiler 5
  • the water in the furnace 5 is the water in the solar water heater 1 and the water with a higher temperature in the cold water.
  • the water inlet switching unit includes a controller 3, a temperature sensor 12 located in a water storage tank 11 of the solar water heater 1, and a water outlet of the solar water heater 1 and a water inlet of the wall-hung boiler 5.
  • the first water source outlet valve 13, the solar water replenishment valve 21, the second water source outlet valve 22 and the temperature sensor 12 are all connected to the controller 3, that is, they are all controlled by the controller 3.
  • the controller 3 is a controller in the prior art, such as a CPU, PLC, etc.
  • the cold water pipeline 2 is also provided with a temperature sensor.
  • the temperature sensor 12 detects the temperature of the water in the water storage tank 11. When the temperature is higher than or equal to the set temperature of the wall-hung boiler 5, the controller 3 opens the first water source outlet valve 13 (solar water replenishment valve 21 and second The water outlet valve 22 of the water source is closed).
  • the heating module of the wall-hung boiler 5 is notified not to start, and the water in the water storage tank 11 does not need to be heated when it passes through the wall-hung boiler 5, and is directly sent to the faucet 7 for use; when the temperature of the water in the water storage tank 11 When the cold water temperature is higher than the set temperature of the wall-hung boiler 5, the controller 3 opens the first water source outlet valve 13 (solar water replenishment valve 21 and the second water source outlet valve 22 are closed), and at the same time notifies the boiler 5 to heat
  • the module starts, the water in the water storage tank 11 is heated to the set temperature by the wall-hung boiler 5 and then sent to the faucet 7 for use; when the temperature of the water in the water storage tank 11 is lower than the cold water temperature, the controller 3 opens the second water source outlet valve 22 ( The solar water replenishment valve 21 and the first water outlet valve 13 are closed), and the heating module of the wall-hung boiler 5 is notified to start.
  • FIG 2 is a second embodiment of the present invention.
  • the wall-hung boiler hot water system includes a solar water heater 1 and a wall-hung boiler 5 connected in series with it.
  • the water outlet of the solar water heater 1 is connected to The water inlet end of the wall-hung boiler 5 enables the water in the water storage tank 11 of the solar water heater 1 to enter the wall-hung boiler 5.
  • the water inlet end of the solar water heater 1 and the water inlet end of the wall-hung boiler 5 are respectively connected to the cold water pipeline 2; the cold water pipeline 2 is connected to the water inlet end of the solar water heater 1 through the solar water supply pipeline 15.
  • the water inlet end of the wall-hung boiler 5 is provided with a water inlet switching unit.
  • the water inlet switching unit includes a controller 3, a temperature sensor 12 located in the water storage tank 11 of the solar water heater 1, and The solar water replenishment valve 21 on the cold water pipeline 2 of the solar water heater 1 and the three-way valve 4 connecting the water outlet end of the solar water heater 1, the water inlet end of the wall-hung boiler and the cold water pipeline 2 are connected to the solar water heater 1
  • the valve 21, the three-way valve 4 and the temperature sensor 12 are all connected to the controller 3, that is, they are all controlled by the controller 3.
  • the cold water pipeline 2 is also provided with a temperature sensor.
  • the temperature sensor 12 detects the temperature of the water in the water storage tank 11.
  • the controller 3 controls the three-way valve 4 to connect the water outlet of the solar water heater 1 and the wall-hung boiler 5, close the cold water pipeline 2, and at the same time notify the heating module of the wall-hung boiler 5 not to start, the water in the water storage tank 11 does not need to be heated when it passes through the wall-hung boiler 5, and is directly sent to the faucet 7 for use; when the water storage tank 11 When the water temperature is higher than the cold water temperature but has not reached the set temperature of the wall-hung boiler 5, the controller 3 controls the three-way valve 4 to connect the water outlet of the solar water heater 1 and the water inlet of the wall-hung boiler 5, and close the cold water pipe 2 at the same time.
  • the controller 3 controls three
  • the through valve 4 connects the cold water pipeline 2 with the water inlet end of the wall-hung boiler 5, closes the water outlet of the solar water heater 1, and at the same time notifies the heating module of the wall-hung boiler 5 to start, and the cold water enters the wall-hung boiler 5 from the cold water pipeline 2 to be heated to the device. Send to faucet 7 for use after set temperature.
  • Fig. 3 is a third embodiment of the present invention.
  • the difference between this embodiment and the first embodiment is that the controller 3 is located inside the wall-hung boiler 5, compared to the first embodiment in which the controller 3 is located outside the wall-hung boiler 5 In this way, this implementation has better integration and takes up less space.
  • controller 3 in the second embodiment described above may also be located inside or outside the wall-hung boiler.
  • the above-mentioned solar water replenishing valve 21, the second water source outlet valve 22, the first water source outlet valve 13, and the three-way valve 4 may all be manual valves or all solenoid valves or part of manual valves and part of solenoid valves. For the solenoid valve.
  • the water inlet end of the wall-hung boiler 5 is provided with a water flow sensor, and the water flow sensor is connected to the above-mentioned controller 3.
  • the controller 3 controls
  • the temperature sensor 12 detects the temperature of the water in the water storage tank 11, and then performs the next step as described above.
  • the present invention may further include a cold water supply manifold 6, and the solar water heater 1
  • the water inlet end of the wall-hung boiler 5 and the water inlet end of the wall-hung boiler 5 are respectively connected to the cold water supply main pipe 6.
  • the water inlet end of the wall-hung boiler 5 is provided with a water inlet switching unit, and the water inlet switching unit makes the water inlet from the wall-hung boiler 5
  • the water entering the wall-hung boiler 5 is the water in the solar water heater 1 and the water with a higher temperature in the cold water.
  • those skilled in the art may not adopt the above-mentioned water inlet switching unit.
  • a quick-insertion pipe joint is installed in the water inlet pipe of the wall-hung boiler 5 , So that the water inlet pipe of the wall-hung boiler 5 and the water outlet end of the solar water heater 1 and the cold water pipe 2 of the wall-hung boiler 5 form a detachable quick-plug connection.
  • the quick-insertion pipe joint is connected to the water outlet end of the solar water heater 1.
  • the quick-insertion pipe joint is connected to the cold water pipeline, thereby realizing the technical concept of the present invention.
  • the advantage of the present invention is that the water entering the wall-hung boiler 5 from the water inlet end of the wall-hung boiler 5 has a higher temperature in the first water source and the second water source through the water inlet switching unit.
  • the hot water system does not substantially change the main pipelines of the solar water heater 1 and the wall-hung boiler 5, but only at the outlet of the solar water heater 1 and the wall-hung boiler
  • There is a water inlet switching unit connected between the water inlets of 5, and the function of the water terminal to output hot water in real time is basically realized by borrowing the original pipeline.
  • There is no need to lay an independent water pipeline to ensure the pipeline structure of the hot water system. Simplicity and reliability; in the preferred solution of the present invention, each valve, temperature sensor, etc. are automatically controlled by the controller, which has a high degree of automation and is convenient for users to use.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

本发明提供一种壁挂炉热水系统，该壁挂炉热水系统包括壁挂炉(5)、第一水源和第二水源，所述壁挂炉(5)的进水端设有用于控制所述壁挂炉(5)进水的进水切换单元，所述进水切换单元连接在第一水源和第二水源之间使得从所述壁挂炉(5)的进水端进入所述壁挂炉(5)中的水为所述第一水源和所述第二水源中温度高的水。本发明通过进水切换单元使得从壁挂炉的进水端进入壁挂炉中的水为第一水源和第二水源中温度高的水，以减少壁挂炉的能源消耗，达到节能目的。

Description

壁挂炉热水系统
相关申请的交叉引用
本申请要求2020年03月10日提交的中国专利申请202020292169.X的权益，该申请的内容通过引用被合并于本文。
技术领域
本发明涉及供水设施，具体地，涉及一种壁挂炉热水系统。
背景技术
太阳光能能够转化为热能，将水从低温度加热到高温度，以满足人们在生活、生产中的热水使用，但太阳能受天气条件影响较大，导致供能不持续。此外，当太阳辐射若的季节，太阳能水达不到生活热水使用温度则无法使用。在我国北方地区冬季采暖热负荷较大，现阶段都采用燃气供热，但是直接采用燃气作为供热能源其用量较大，费用较高，即便用户能够承担起，但对天然气供应会造成重大负担，同时会对大气造成严重污染。
为解决以上问题，一些现有技术公开了一种壁挂炉与太阳能集成系统，该系统包括壁挂炉、储热水箱和太阳能集热装置，壁挂炉的生活用水接口端和太阳能集热装置均通过两路进出水管道与储热水箱连通，壁挂炉的采暖接口端通过采暖管道与外部家庭供暖管道连接；所述储热水箱设有用于外接自来水管道的冷水进口和用于向外输出的热水出口，热水出口处连通有热水管道，热水管道上设置有便于调节水温的生活热水恒温组件，生活热水恒温组件出水口侧的热水管道通过生活热水管道循环组件与储热水箱连通。该系统设计合理、使用方便，将太阳能与壁挂炉进行集成协作，不仅达到了能源优化、优势互补，而且减少占用外部空间，便于家庭安装和使用。但是在比较严 寒的冬季，尤其是雨雪天气时，太阳能热水器储热水箱中的水存在低于自来水温度的情况，也就是相比于直接对自来水进行加热，需要更多的热量对储热水箱中的水进行加热，造成燃气浪费。此外，当温度很低时，储热水箱中的水很可能被冻住，无法供水，导致无法正常使用热水。因此，需要一种更加节能的集成式热水系统。
发明内容
本发明所要解决的技术问题是提供一种壁挂炉热水系统，该壁挂炉热水系统能够选择温度较高的水进入壁挂炉中，从而实现节能的目的。
为了解决上述技术问题，本发明提供一种壁挂炉热水系统，该壁挂炉热水系统，包括壁挂炉、第一水源和第二水源，所述壁挂炉的进水端设有用于控制所述壁挂炉进水的进水切换单元，所述进水切换单元连接在第一水源和第二水源之间使得从所述壁挂炉的进水端进入所述壁挂炉中的水为所述第一水源和所述第二水源中温度高的水。
可选地，所述进水切换单元包括控制器、位于各管路中的阀门以及位于所述第一水源和所述第二水源中的温度传感器，各个所述阀门和所述温度传感器均与所述控制器连接。
可选地，所述第一水源的出水端与所述壁挂炉的进水端之间设有第一水源出水阀门，所述第二水源的出水端与所述壁挂炉的进水端之间设有第二水源出水阀门。
可选地，所述第一水源的出水端、所述第二水源的出水端通过三通阀连接到所述壁挂炉的进水端。
可选地，所述阀门为电磁阀。
可选地，所述控制器位于所述壁挂炉的内部或外部。
可选地，所述壁挂炉的进水端设有水流量传感器。
可选地，所述第一水源为太阳能热水器，所述第二水源为冷水。
可选地，所述太阳能热水器的太阳能补水管路上设有太阳能补水阀门。
通过上述技术方案，本发明实现了以下有益效果：
1、本发明通过进水切换单元使得从壁挂炉的进水端进入壁挂炉中的水为第一水源和第二水源中温度高的水，以减少壁挂炉的能源消耗，达到节能目的；
2、本发明的热水系统实质上并未改变壁挂炉的主体管路，仅是在壁挂炉和水源之间连接有进水切换单元，用水终端即时输出热水的功能基本还是借用原有的管路实现，无需专门铺设独立的输水管道，确保了热水系统管路结构的简洁性和可靠性；
3、在本发明的优选方案中，各阀门、温度传感器等均由控制器自动化控制，自动化程度高，方便用户使用。
附图说明
图1是本发明第一种实施方式的结构示意图；
图2是本发明第二种实施方式的结构示意图；
图3是本发明第三种实施方式的结构示意图；
附图标记说明
1太阳能热水器             11储水箱
12温度传感器              13第一水源出水阀门
14太阳能热水管路          15太阳能补水管路
2冷水管路                 21太阳能补水阀门
22第二水源出水阀门        3控制器
4三通阀                   5壁挂炉
6冷水供应总管        7水龙头
图中箭头为水流方向。
具体实施方式
以下结合附图和实施例对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或者是一体连接；可以是直接连接，也可以是通过中间媒介间接连接，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
此外，术语“第一”、“第二”仅用于描述的目的，而不能理解为指示或暗示相对重要性或隐含指明所指示的技术特征的数量，因此，限定有“第一”、“第二”的特征可以明示或隐含地包括一个或更多个所述特征。
参见图1至图3，本发明的壁挂炉热水系统，包括壁挂炉5、第一水源和第二水源，所述壁挂炉5的进水端设有用于控制所述壁挂炉5进水的进水切换单元，所述进水切换单元连接在第一水源和第二水源之间使得从所述壁挂炉5进水端进入所述壁挂炉5中的水为所述第一水源和所述第二水源中温度高的水。壁挂炉5可以有一个或多个，当为多个时，多个壁挂炉5分别与第一水源串接，即多个壁挂炉的进水端分别连接到第一水源的出水端。第一水源可以是太阳能热水器或者其他热水器，第二水源可以是自来水或者其他冷水。
图1是本发明的第一种实施方式，所述壁挂炉热水系统包括太阳 能热水器1和与之串接的壁挂炉5，所述太阳能热水器1的出水端通过太阳能热水管路14连接到所述壁挂炉5的进水端，使得太阳能热水器1的储水箱11中的水能够进入到壁挂炉5中。
所述太阳能热水器1的进水端和所述壁挂炉5的进水端分别连接到冷水管路2上，所述太阳能热水器1和所述壁挂炉5可分别通过冷水管路2进水；冷水管路2通过太阳能补水管路15与太阳能热水器1的进水端连接，如图1所示，因为太阳能热水器1的进水和出水一般是不同步的，所以可将太阳能补水管路15与太阳能热水管路14部分重合，达到节约材料成本的目的；
所述壁挂炉5的进水端设有进水切换单元，所述进水切换单元用于控制所述壁挂炉5的进水，以使得从所述壁挂炉5的进水端进入所述壁挂炉5中的水为所述太阳能热水器1中的水和冷水中温度较高的水。
具体地，所述进水切换单元包括控制器3、位于所述太阳能热水器1的储水箱11中的温度传感器12、设在所述太阳能热水器1的出水端与所述壁挂炉5的进水端之间的管路上的第一水源出水阀门13、设在所述太阳能热水器1的冷水管路2上的太阳能补水阀门21以及设在所述壁挂炉5的冷水管路2上的第二水源出水阀门22。所述第一水源出水阀门13、所述太阳能补水阀门21、所述第二水源出水阀门22和所述温度传感器12均与所述控制器3连接，即均由控制器3控制。控制器3为现有技术中的控制器，如CPU、PLC等。所述冷水管路2中亦设有温度传感器。
该实施方式的工作原理为：
当太阳能热水器1的储水箱11中水量不足时，关闭第一水源出水阀门13和第二水源出水阀门22、打开太阳能补水阀门21，给储水 箱11上水，上水完成后关闭太阳能补水阀门21；
在用水时，温度传感器12检测储水箱11中水的温度，当其温度高于或等于壁挂炉5的设定温度时，控制器3打开第一水源出水阀门13(太阳能补水阀门21和第二水源出水阀门22处关闭状态)，同时通知壁挂炉5的加热模块不启动，储水箱11中的水通过壁挂炉5时不需加热，直接送到水龙头7使用；当储水箱11中水的温度高于冷水温度但未达到壁挂炉5的设定温度时，控制器3打开第一水源出水阀门13(太阳能补水阀门21和第二水源出水阀门22处关闭状态)，同时通知壁挂炉5的加热模块启动，储水箱11中的水通过壁挂炉5加热到设定温度后送到水龙头7使用；当储水箱11中水的温度低于冷水温度时，控制器3打开第二水源出水阀门22(太阳能补水阀门21和第一水源出水阀门13处关闭状态)，同时通知壁挂炉5的加热模块启动，冷水自冷水管路2进入到壁挂炉5中加热到设定温度后送到水龙头7使用。
图2是本发明的第二种实施方式，所述壁挂炉热水系统包括太阳能热水器1和与之串接的壁挂炉5，所述太阳能热水器1的出水端通过太阳能热水管路14连接到所述壁挂炉5的进水端，使得太阳能热水器1的储水箱11中的水能够进入到壁挂炉5中。
所述太阳能热水器1的进水端和所述壁挂炉5的进水端分别连接到冷水管路2上；冷水管路2通过太阳能补水管路15与太阳能热水器1的进水端连接。
所述壁挂炉5的进水端设有进水切换单元，具体地，所述进水切换单元包括控制器3、位于所述太阳能热水器1的储水箱11中的温度传感器12、设在所述太阳能热水器1的冷水管路2上的太阳能补水阀门21以及连接所述太阳能热水器1的出水端、所述壁挂炉的进 水端和所述冷水管路2的三通阀4，所述太阳能补水阀门21、所述三通阀4和所述温度传感器12均与所述控制器3连接，即均由控制器3控制。所述冷水管路2中亦设有温度传感器。
该实施方式的工作原理为：
当太阳能热水器1的储水箱11中水量不足时，关闭第一水源出水阀门13和第二水源出水阀门22、打开太阳能补水阀门21，给储水箱11上水，上水完成后关闭太阳能补水阀门21(用水过程中太阳能补水阀门21处于关闭状态)；
在用水时，温度传感器12检测储水箱11中水的温度，当其温度高于或等于壁挂炉5的设定温度时，控制器3控制三通阀4连通太阳能热水器1的出水端和壁挂炉5的进水端、关闭冷水管路2，同时通知壁挂炉5的加热模块不启动，储水箱11中的水通过壁挂炉5时不需加热，直接送到水龙头7使用；当储水箱11中水的温度高于冷水温度但未达到壁挂炉5的设定温度时，控制器3控制三通阀4连通太阳能热水器1的出水端和壁挂炉5的进水端，关闭冷水管路2，同时通知壁挂炉5的加热模块启动，储水箱11中的水通过壁挂炉5加热到设定温度后送到水龙头7使用；当储水箱11中水的温度低于冷水温度时，控制器3控制三通阀4连通冷水管路2和壁挂炉5的进水端，关闭太阳能热水器1的出水端，同时通知壁挂炉5的加热模块启动，冷水自冷水管路2进入到壁挂炉5中加热到设定温度后送到水龙头7使用。
图3是本发明的第三种实施方式，该实施方式与第一种实施方式的区别在于，控制器3位于壁挂炉5的内部，相对于控制器3位于壁挂炉5外部的第一种实施方式，该实施方式的集成度更好，占用空间更小。
同理，上述第二种实施方式中的控制器3也可以位于壁挂炉的内部或外部。
上述太阳能补水阀门21、第二水源出水阀门22、第一水源出水阀门13、三通阀4可均为手动阀或均为电磁阀或部分手动阀部分电磁阀，但为了实现自动化控制，优选均为电磁阀的方式。
所述壁挂炉5的进水端设有水流量传感器，所述水流量传感器与上述控制器3连接，当水流量传感器检测到水量信息即壁挂炉5的出水端被打开时，控制器3控制温度传感器12检测储水箱11中水的温度，然后进行如上所述的下一步工作。使用水流量传感器配合前述的进水切换单元，可实现壁挂炉进水的全自动化控制，方便各年龄阶段的用户使用。
以上描述了本发明的热水系统的基本实施方式以及相关的优选实施方式，在本发明的上述热水系统的技术方案的基础上，本发明还可包括冷水供应总管6，所述太阳能热水器1的进水端和壁挂炉5的进水端分别连接于冷水供应总管6。
通过上文对本发明热水系统的描述可以看出，典型地，所述壁挂炉5的进水端设有进水切换单元，通过该进水切换单元使得从所述壁挂炉5的进水端进入所述壁挂炉5中的水为所述太阳能热水器1中的水和冷水中温度较高的水。但是，在本发明的技术构思的启示下，本领域技术人员可能会不采用上述进水切换单元，例如，在本发明的技术构思范围内，在壁挂炉5的进水管路安装快插管接头，使得壁挂炉5的进水管路与太阳能热水器1的出水端以及壁挂炉5的冷水管路2之间形成可拆卸的快插式连接，当壁挂炉5从太阳能热水器1进水时，将该快插管接头接在太阳能热水器1的出水端，当壁挂炉从冷水管路2进水时，将该快插管接头接在冷水管路上，从而实现本发明的技术 构思。
由上述描述可以看出，本发明的优点在于：通过进水切换单元使得从所述壁挂炉5的进水端进入所述壁挂炉5中的水为第一水源和第二水源中温度较高的水，以减少所述壁挂炉5的能源消耗，达到节能目的；热水系统实质上并未改变太阳能热水器1和壁挂炉5的主体管路，其仅是在太阳能热水器1出水端和壁挂炉5的进水端之间连接有进水切换单元，用水终端即时输出热水的功能基本还是借用原有的管路实现，无需专门铺设独立的输水管道，确保了热水系统管路结构的简洁性和可靠性；在本发明的优选方案中，各阀门、温度传感器等均由控制器自动化控制，自动化程度高，方便用户使用。
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，这些简单变型均属于本发明的保护范围。另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合。为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。
此外，本发明的各种不同的实施方式之间也可以进行任意组合，只要其不违背本发明的思想，其同样应当视为本发明所公开的内容。

Claims (9)

  1. 一种壁挂炉热水系统，其特征在于，包括壁挂炉(5)、第一水源和第二水源，所述壁挂炉(5)的进水端设有用于控制所述壁挂炉(5)进水的进水切换单元，所述进水切换单元连接在第一水源和第二水源之间使得从所述壁挂炉(5)的进水端进入所述壁挂炉(5)中的水为所述第一水源和所述第二水源中温度高的水。
  2. 根据权利要求1所述的壁挂炉热水系统，其特征在于，所述进水切换单元包括控制器(3)、位于各管路中的阀门以及位于所述第一水源和所述第二水源中的温度传感器(12)，各个所述阀门和所述温度传感器(12)均与所述控制器(3)连接。
  3. 根据权利要求2所述的壁挂炉热水系统，其特征在于，所述第一水源的出水端与所述壁挂炉(5)的进水端之间设有第一水源出水阀门(13)，所述第二水源的出水端与所述壁挂炉(5)的进水端之间设有第二水源出水阀门(12)。
  4. 根据权利要求2所述的壁挂炉热水系统，其特征在于，所述第一水源的出水端、所述第二水源的出水端通过三通阀(4)连接到所述壁挂炉(5)的进水端。
  5. 根据权利要求2所述的壁挂炉热水系统，其特征在于，所述阀门为电磁阀。
  6. 根据权利要求2所述的壁挂炉热水系统，其特征在于，所述控制器(3)位于所述壁挂炉(5)的内部或外部。
  7. 根据权利要求1至6中任一项所述的壁挂炉热水系统，其特征在于，所述壁挂炉(5)的进水端设有水流量传感器。
  8. 根据权利要求1至6中任一项所述的壁挂炉热水系统，其特征在于，所述第一水源为太阳能热水器(1)，所述第二水源为冷水。
  9. 根据权利要求8所述的壁挂炉热水系统，其特征在于，所述太阳能热水器(1)的太阳能补水管路(15)上设有太阳能补水阀门(21)。
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