WO2017020567A1 - 一种相变储热式电热水器 - Google Patents

一种相变储热式电热水器 Download PDF

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Publication number
WO2017020567A1
WO2017020567A1 PCT/CN2016/072755 CN2016072755W WO2017020567A1 WO 2017020567 A1 WO2017020567 A1 WO 2017020567A1 CN 2016072755 W CN2016072755 W CN 2016072755W WO 2017020567 A1 WO2017020567 A1 WO 2017020567A1
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WO
WIPO (PCT)
Prior art keywords
circulating medium
phase change
pipe
water heater
tube
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Application number
PCT/CN2016/072755
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English (en)
French (fr)
Inventor
刘海军
李文
王鋐
Original Assignee
江苏启能新能源材料有限公司
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Application filed by 江苏启能新能源材料有限公司 filed Critical 江苏启能新能源材料有限公司
Priority to EP16832056.2A priority Critical patent/EP3330633B1/en
Publication of WO2017020567A1 publication Critical patent/WO2017020567A1/zh
Priority to US15/870,224 priority patent/US20180135886A1/en

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    • 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
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • 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
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0036—Domestic hot-water supply systems with combination of different kinds of heating means
    • F24D17/0052—Domestic hot-water supply systems with combination of different kinds of heating means recuperated waste heat and conventional heating means
    • 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
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0036—Domestic hot-water supply systems with combination of different kinds of heating means
    • F24D17/0063—Domestic hot-water supply systems with combination of different kinds of heating means solar energy and conventional heaters
    • 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
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • 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
    • F24H15/335—Control of pumps, e.g. on-off control
    • 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
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/37—Control of heat-generating means in heaters of electric 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
    • F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
    • F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
    • F24H7/04—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid
    • F24H7/0408—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply
    • F24H7/0433—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply the transfer medium being water
    • 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
    • F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
    • F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
    • F24H7/04—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid
    • F24H7/0408—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply
    • F24H7/0433—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply the transfer medium being water
    • F24H7/0441—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply the transfer medium being water with supplementary heating means
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/044—Flow sensors
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/08—Storage tanks
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/10—Heat storage materials, e.g. phase change materials or static water enclosed in a space
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/18—Domestic hot-water supply systems using recuperated or waste heat

Definitions

  • the utility model relates to an electric water heater, in particular to a phase change heat storage electric water heater.
  • the current energy storage type electric water heaters are provided by the use of electric heating elements to directly heat the water installed in the water heater for the user to live and work.
  • the large heat storage container causes the water heater to be large in size, high in quality, high in cost, and installed indoors. It occupies the user's indoor space and affects the installation and use of the storage-type electric water heater.
  • the storage of a large amount of water in the inner tank of the electric storage type electric water heater has a certain corrosiveness, which shortens the service life and breeds bacteria to affect health.
  • the current heat storage electric water heaters cannot be used immediately, and cannot meet the needs of users in the high-tempo work and life in the current society.
  • a phase change thermal storage electric water heater comprising a water heater casing, wherein the water heater casing is provided with a heat insulating material, the water heater casing contains a plurality of containers, and the plurality of containers are inside
  • Each of the phase change materials is filled with a heat exchange tube, and one end of the heat exchange tube is connected with an inlet pipe, and the other end is connected with an outlet pipe, and the inlet pipe is connected with the outlet pipe.
  • the phase change thermal storage electric water heater mainly utilizes the high heat storage property of the phase change material, and can provide the user with hot water anytime and anywhere after the heat storage in advance, the hot water has a long duration, and the hot water production is large, safe and reliable.
  • the return pipe, the circulation pump and the water container are integrated in the water heater casing, which results in a complicated structure and is not convenient for maintenance and replacement.
  • the purpose of the utility model is to overcome the defects of the prior art mentioned above and to provide a phase change thermal storage electric water heater with small volume, long service life, ready-to-use and high heat storage density.
  • a phase change thermal storage electric water heater comprises a phase change heat storage device
  • the phase change heat storage device comprises a casing
  • the casing is filled with a box-changing material
  • a heat exchange tube is embedded in the phase change material
  • the heat One end of the exchange tube is connected with a circulating medium inlet pipe
  • the other end is connected with a circulating medium outflow pipe
  • the circulating medium enters the pipe and the
  • An circulating medium return pipe is externally connected between the circulating medium outflow pipes
  • the circulating medium inlet pipe, the heat exchange pipe, the circulating medium outflow pipe and the circulating medium return pipe constitute a circulation system for circulating medium flow
  • the circulating medium reflux A circulation pump, an electric heater, a function switching valve and a heat exchanger are arranged in sequence on the pipe, and the heat exchanger is provided with a metal pipe and an outlet pipe for heating tap water.
  • a water flow detector is disposed on the outlet pipe.
  • the circulation pump, the water flow detector, and the electric heater are simultaneously connected to the controller.
  • the water flow detector is a combined structure of one or two of a water flow switch or a water flow sensor.
  • a circulating medium reserved inlet pipe and a circulating medium reserved outflow pipe are respectively disposed on the circulating medium return pipe at both ends of the function switching valve.
  • a pressure relief valve is disposed on the circulating medium return pipe.
  • the phase change material leakage detecting device is provided with a phase change material leakage detecting device, and the phase change material leakage detecting device is one or more combined structures of aluminum tubes, zinc tubes, magnesium tubes or pH detectors.
  • the function switching valve is one or more combination structures of a ball valve, an electric valve or a solenoid valve.
  • the circulating medium is one or a combination of tap water, distilled water, antifreeze or heat transfer oil.
  • the operation mode of the phase change thermal storage electric water heater of the utility model can be divided into an electric water heater operation mode and a mixed operation mode of other auxiliary energy sources of the electric water heater.
  • Electric water heater operation mode the operating state when the function switching valve is opened.
  • the controller starts the circulation pump and the electric heater, and the circulating medium is in the heat exchange tube of the circulating medium return pipe and the heat storage container.
  • the cycle transfers heat to the phase change material and stores it.
  • the temperature reaches the set value and the circulating pump and electric heater stop working.
  • the circulation pump is turned on, and the circulating medium absorbs heat through the phase change material and then transmits the tap water to the user through the heat exchanger. This feature is instantly available through time control for a comfortable user experience.
  • Mixed auxiliary water energy operation mode of the electric water heater refers to mixed operation with other auxiliary energy sources.
  • the function switching valve is closed, and the circulation system is matched with other energy systems, such as collectors, when the circulation inlet temperature is higher than a certain set value.
  • the controller starts the circulation pump, and the circulating medium circulates in the circulating medium return pipe and the auxiliary energy system, transfers the heat to the phase change material and stores it, and stops working when the temperature is lower than the set value.
  • the water side is heated by a heat exchanger for the user to use.
  • This function can utilize the auxiliary energy sources such as heat pump and solar energy, and use these unstable energy sources to work at the optimal operating efficiency to meet the heat storage capacity.
  • phase change thermal storage electric water heater of the utility model has small volume, long life and comfortable experience, that is, open Ready to use and other advantages.
  • the phase change regenerative electric water heater of the utility model mainly utilizes the high heat storage property of the phase change material, and can provide the user with a comfortable user experience of the ready-to-use hot water after the heat storage in advance, and the hot water has a long duration.
  • the production of hot water is high, safe and reliable, saving users waiting time, and meeting the needs of users with high rhythm work and life.
  • Figure 1 is a schematic view of the structure of the present invention.
  • 1 is a heat exchange tube
  • 2 is a phase change material
  • 3 is a phase change heat storage device
  • 4 is a circulation pump
  • 5 is an electric heater
  • 6 is a pressure relief valve
  • 7 is a function switching valve
  • 8 is a circulating medium Reserve inlet pipe
  • 9 reserved outflow pipe for circulating medium
  • 10 is heat exchanger
  • 11 is water flow detector
  • 12 is inlet pipe
  • 13 is outlet pipe
  • 14 is circulating medium inlet pipe
  • 15 is circulating medium outflow pipe
  • 16 is a circulating medium return pipe.
  • a phase change thermal storage electric water heater as shown in FIG. 1 , comprises a phase change heat storage device 3 , the phase change heat storage device 3 includes a casing, and the casing is filled with a box-changing material 2 in the phase change material 2
  • a heat exchange tube 1 is embedded therein, one end of the heat exchange tube 1 is connected to the circulating medium inlet tube 14, and the other end is connected with a circulating medium outflow tube 15, and the circulating medium inlet tube 14 and the circulating medium outflow tube 15 are
  • An circulating medium return pipe 16 is externally connected, and the circulating medium inlet pipe 14, the heat exchange pipe 1, the circulating medium outflow pipe 15, and the circulating medium return pipe 16 constitute a circulation system for circulating the medium, and the circulating medium return pipe 16 is sequentially disposed.
  • the circulation pump 4, the electric heater 5, the function switching valve 7 and the heat exchanger 10 are provided with a metal pipe 12 and an outlet pipe 13 for heating tap water.
  • a water flow detector 11 is disposed on the water outlet pipe 13.
  • the circulation pump 4, the water flow detector 11, and the electric heater 5 are simultaneously connected to the controller.
  • the circulating medium return pipe 16 at both ends of the function switching valve 7 is respectively provided with a circulating medium reserved inlet pipe 8 and a circulating medium reserved outlet pipe 9 which are externally auxiliary energy sources.
  • a pressure relief valve 6 is disposed on the circulating medium return pipe 16.
  • the water flow detector 11 is a combination of one or two of a water flow switch or a water flow sensor.
  • the phase change material leakage detecting device 16 is provided with a phase change material leakage detecting device, and the phase change material leakage detecting device is one or more combined structures of aluminum tubes, zinc tubes, magnesium tubes or pH detectors.
  • the function switching valve 7 is a combination of one or more of a ball valve, an electric valve, or a solenoid valve.
  • the circulating medium is one or a combination of tap water, distilled water, antifreeze or heat transfer oil.
  • the operation mode of the phase change thermal storage electric water heater of the embodiment can be divided into an electric water heater operation mode and a mixed auxiliary operation mode of the electric water heater.
  • Electric water heater operation mode the operating state when the function switching valve is opened.
  • the controller starts the circulation pump and the electric heater, and the circulating medium is in the heat exchange tube of the circulating medium return pipe and the heat storage container.
  • the cycle transfers heat to the phase change material and stores it.
  • the temperature reaches the set value and the circulating pump and electric heater stop working.
  • the circulation pump is turned on, and the circulating medium absorbs heat through the phase change material and then transmits the tap water to the user through the heat exchanger. This feature is instantly available through time control for a comfortable user experience.
  • Mixed auxiliary water energy operation mode of the electric water heater refers to mixed operation with other auxiliary energy sources.
  • the function switching valve is closed, and the circulation system is matched with other energy systems, such as collectors, when the circulation inlet temperature is higher than a certain set value.
  • the controller starts the circulation pump, and the circulating medium circulates in the circulating medium return pipe and the auxiliary energy system, transfers the heat to the phase change material and stores it, and stops working when the temperature is lower than the set value.
  • the water side is heated by a heat exchanger for the user to use.
  • This function can utilize the auxiliary energy sources such as heat pump and solar energy, and use these unstable energy sources to work at the optimal operating efficiency to meet the heat storage capacity.

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

Abstract

一种相变储热式电热水器，包括相变储热装置（3），该相变储热装置（3）包括一外壳，在外壳内填充有相变材料（2），在相变材料（2）内埋设有热交换管（1），热交换管（1）的一端连接有循环介质进入管（14），另一端连接有循环介质流出管（15），循环介质进入管（14）与循环介质流出管（15）之间外接一循环介质回流管（16），循环介质进入管（14）、热交换管（1）、循环介质流出管（15）及循环介质回流管（16）构成用于循环介质流动的循环***，循环介质回流管（16）上顺序设置有循环泵（4）、电加热器（5）、功能切换阀（7）及换热器（10），换热器（10）设有供加热自来水的金属管（12）和出水管（13）。

Description

一种相变储热式电热水器 技术领域
本实用新型涉及一种电热水器，尤其是涉及一种相变储热式电热水器。
背景技术
现行的储能式电热水器均是以利用电热元件直接加热装在热水器内的水提供给用户生活和工作的使用，存在着储热容器大导致热水器体积大，质量大，成本高，安装在室内，占用用户室内空间，影响储热式电热水器的安装使用，而且储热式电热水器内胆中长时间存放大量的水，存在一定的腐蚀性，使得使用寿命缩短，滋生细菌影响健康。另外，现行的储热式电热水器不能即开即用，不能满足用户在现在社会中高节奏的工作和生活中的需求。
中国专利CN 102654308 A公布了一种相变储热式电热水器，包括一热水器外壳，所述热水器外壳内设置有保温材料，所述热水器外壳内包含有若干个容器，所述的若干个容器内分别填充有相变材料，所述相变材料内埋设有热交换管，所述热交换管的一端连接有进水管，另一端连接有出水管，所述进水管与所述出水管之间连接有一回水管，所述回水管上设置有循环泵和水容器，所述水容器内安装有电加热器，所述循环泵与所述电加热器分别电连接一控制器，所述控制器固定在所述热水器外壳上。该相变储热式电热水器，主要利用相变材料的高储热性，提前储热后，能给用户提供随时随地的热水，热水持续时间长，热水产量多，安全可靠。但是该专利中，回水管、循环泵和水容器均集成在热水器外壳内，导致结构设置较为复杂，且不便于维护与拆换。
实用新型内容
本实用新型的目的就是为了克服上述现有技术存在的缺陷而提供一种体积小、使用寿命长、即开即用、储热密度高的相变储热式电热水器。
本实用新型的目的可以通过以下技术方案来实现：
一种相变储热式电热水器，包括相变储热装置，该相变储热装置包括一外壳，在外壳内填充有箱变材料，在相变材料内埋设有热交换管，所述热交换管的一端连接有循环介质进入管，另一端连接有循环介质流出管，所述循环介质进入管与所述 循环介质流出管之间外接一循环介质回流管，所述的循环介质进入管、热交换管、循环介质流出管及循环介质回流管构成用于循环介质流动的循环***，所述的循环介质回流管上顺序设置有循环泵、电加热器、功能切换阀及换热器，所述的换热器设有供加热自来水的金属管和出水管。
所述的出水管上设置有水流检测器。
所述的循环泵、水流检测器、电加热器同时连接控制器。
所述的水流检测器为水流开关或水流传感器中一种或两种的组合结构。
在功能切换阀两端的循环介质回流管上分别设置有外接辅助能源的循环介质预留进入管和循环介质预留流出管。
所述的循环介质回流管上设置有泄压阀。
所述的循环介质回流管上设有相变材料泄漏检测装置，所述的相变材料泄漏检测装置为铝管、锌管、镁管或pH值检测仪中一种或多种组合结构。
所述的功能切换阀为球阀、电动阀或电磁阀中一种或多种组合结构。
所述的循环介质为自来水、蒸馏水、防冻液或导热油中一种或多种组合。
本实用新型的相变储热式电热水器的运行模式可以分为电热水器运行模式、带电热水器其他辅助能源混合运行模式。
电热水器运行模式：为功能切换阀打开时的运行状态，当温度低于设定值时，控制器启动循环泵和电加热器，循环介质在循环介质回流管和蓄热容器中的热交换管内循环，把热量传递给相变材料并储存，温度达到设定值循环泵和电加热器停止工作。用水时，水流检测器检测到换热器上出水管的用水信号后，循环泵打开，循环介质通过相变材料吸取热量后通过换热器传给自来水供用户使用。此功能通过时间上控制可实现即开即用，提供舒适的用户体验。
带电热水器其他辅助能源混合运行模式：指和其他辅助能源混合运行，此时功能切换阀是关闭状态，循环***上配合其他能源***，比如集热器等，循环进口温度高于某设定值时，控制器启动循环泵，循环介质在循环介质回流管和辅助能源***中循环，把热量传递给相变材料并储存，温度低于设定值时，停止工作。用水侧通过换热器加热热水供用户使用。此功能可利用热泵、太阳能这些辅助能源，并利用这些不稳定能源在最佳运行效益时工作，来满足蓄热能力。
与现有技术相比，本实用新型具有如下有益效果：
1、本实用新型的相变储热式电热水器具有小体积，长寿命，舒适体验，即开 即用等优点。
2、本实用新型的相变蓄热式电热水器，主要利用相变材料的高储热性，提前储热后，能给用户提供即开即用热水的舒适用户体验，热水持续时间长，热水产量多，安全可靠，节约用户等待时间，能够满足用户高节奏工作及生活的需求。
附图说明
图1为本实用新型的结构示意图。
图中，1为热交换管，2为相变材料，3为相变储热装置，4为循环泵，5为电加热器，6为泄压阀，7为功能切换阀，8为循环介质预留进入管，9为循环介质预留流出管，10为换热器，11为水流检测器，12为进水管，13为出水管，14为循环介质进入管，15为循环介质流出管，16为循环介质回流管。
具体实施方式
下面结合附图和具体实施例对本实用新型进行详细说明。
实施例
一种相变储热式电热水器，如图1所示，包括相变储热装置3，该相变储热装置3包括一外壳，在外壳内填充有箱变材料2，在相变材料2内埋设有热交换管1，所述热交换管1的一端连接有循环介质进入管14，另一端连接有循环介质流出管15，所述循环介质进入管14与所述循环介质流出管15之间外接一循环介质回流管16，循环介质进入管14、热交换管1、循环介质流出管15及循环介质回流管16构成用于循环介质流动的循环***，循环介质回流管16上顺序设置有循环泵4、电加热器5、功能切换阀7及换热器10，换热器10设有供加热自来水的金属管12和出水管13。出水管13上设置有水流检测器11。循环泵4、水流检测器11、电加热器5同时连接控制器。在功能切换阀7两端的循环介质回流管16上分别设置有外接辅助能源的循环介质预留进入管8和循环介质预留流出管9。循环介质回流管16上设置有泄压阀6。
其中，水流检测器11为水流开关或水流传感器中一种或两种的组合结构。
循环介质回流管16上设有相变材料泄漏检测装置，相变材料泄漏检测装置为铝管、锌管、镁管或pH值检测仪中一种或多种组合结构。
功能切换阀7为球阀、电动阀或电磁阀中一种或多种组合结构。
循环介质为自来水、蒸馏水、防冻液或导热油中一种或多种组合。
本实施例的相变储热式电热水器的运行模式可以分为电热水器运行模式、带电热水器其他辅助能源混合运行模式。
电热水器运行模式：为功能切换阀打开时的运行状态，当温度低于设定值时，控制器启动循环泵和电加热器，循环介质在循环介质回流管和蓄热容器中的热交换管内循环，把热量传递给相变材料并储存，温度达到设定值循环泵和电加热器停止工作。用水时，水流检测器检测到换热器上出水管的用水信号后，循环泵打开，循环介质通过相变材料吸取热量后通过换热器传给自来水供用户使用。此功能通过时间上控制可实现即开即用，提供舒适的用户体验。
带电热水器其他辅助能源混合运行模式：指和其他辅助能源混合运行，此时功能切换阀是关闭状态，循环***上配合其他能源***，比如集热器等，循环进口温度高于某设定值时，控制器启动循环泵，循环介质在循环介质回流管和辅助能源***中循环，把热量传递给相变材料并储存，温度低于设定值时，停止工作。用水侧通过换热器加热热水供用户使用。此功能可利用热泵、太阳能这些辅助能源，并利用这些不稳定能源在最佳运行效益时工作，来满足蓄热能力。
上述的对实施例的描述是为便于该技术领域的普通技术人员能理解和使用实用新型。熟悉本领域技术的人员显然可以容易地对这些实施例做出各种修改，并把在此说明的一般原理应用到其他实施例中而不必经过创造性的劳动。因此，本实用新型不限于上述实施例，本领域技术人员根据本实用新型的揭示，不脱离本实用新型范畴所做出的改进和修改都应该在本实用新型的保护范围之内。

Claims (9)

  1. 一种相变储热式电热水器，包括相变储热装置(3)，该相变储热装置(3)包括一外壳，在外壳内填充有箱变材料(2)，在相变材料(2)内埋设有热交换管(1)，所述热交换管(1)的一端连接有循环介质进入管(14)，另一端连接有循环介质流出管(15)，所述循环介质进入管(14)与所述循环介质流出管(15)之间外接一循环介质回流管(16)，所述的循环介质进入管(14)、热交换管(1)、循环介质流出管(15)及循环介质回流管(16)构成用于循环介质流动的循环***，其特征在于，所述的循环介质回流管(16)上顺序设置有循环泵(4)、电加热器(5)、功能切换阀(7)及换热器(10)，所述的换热器(10)设有供加热自来水的金属管(12)和出水管(13)。
  2. 根据权利要求1所述的一种相变储热式电热水器，其特征在于，所述的出水管(13)上设置有水流检测器(11)。
  3. 根据权利要求2所述的一种相变储热式电热水器，其特征在于，所述的循环泵(4)、水流检测器(11)、电加热器(5)同时连接控制器。
  4. 根据权利要求2所述的一种相变储热式电热水器，其特征在于，所述的水流检测器(11)为水流开关或水流传感器中一种或两种的组合结构。
  5. 根据权利要求1所述的一种相变储热式电热水器，其特征在于，在功能切换阀(7)两端的循环介质回流管(16)上分别设置有外接辅助能源的循环介质预留进入管(8)和循环介质预留流出管(9)。
  6. 根据权利要求1所述的一种相变储热式电热水器，其特征在于，所述的循环介质回流管(16)上设置有泄压阀(6)。
  7. 根据权利要求1所述的一种相变储热式电热水器，其特征在于，所述的循环介质回流管(16)上设有相变材料泄漏检测装置，所述的相变材料泄漏检测装置为铝管、锌管、镁管或pH值检测仪中一种或多种组合结构。
  8. 根据权利要求1所述的一种相变储热式电热水器，其特征在于，所述的功能切换阀(7)为球阀、电动阀或电磁阀中一种或多种组合结构。
  9. 根据权利要求1所述的一种相变储热式电热水器，其特征在于，所述的循环介质为自来水、蒸馏水、防冻液或导热油中一种或多种组合。
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