WO2011003267A1 - Liquid heating unit - Google Patents

Liquid heating unit Download PDF

Info

Publication number
WO2011003267A1
WO2011003267A1 PCT/CN2010/000768 CN2010000768W WO2011003267A1 WO 2011003267 A1 WO2011003267 A1 WO 2011003267A1 CN 2010000768 W CN2010000768 W CN 2010000768W WO 2011003267 A1 WO2011003267 A1 WO 2011003267A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
heating element
heating unit
flat
heating
Prior art date
Application number
PCT/CN2010/000768
Other languages
French (fr)
Chinese (zh)
Inventor
谢忠华
Original Assignee
宁波市万泓电器科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁波市万泓电器科技有限公司 filed Critical 宁波市万泓电器科技有限公司
Publication of WO2011003267A1 publication Critical patent/WO2011003267A1/en

Links

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
    • 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
    • F24H1/12—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 in which the water is kept separate from the heating medium
    • F24H1/14—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 in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/16—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 in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
    • F24H1/162—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 in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled 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
    • 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
    • F24H1/12—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 in which the water is kept separate from the heating medium
    • F24H1/121—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 in which the water is kept separate from the heating medium using electric energy supply

Definitions

  • the present invention relates to a heating power source, and more particularly to a liquid heating unit for rapidly heating a liquid. Background technique
  • liquid heating unit In liquid heating devices such as drinking fountains and water heaters, the liquid heating unit is the most critical component. In order to reduce the time required to heat a given liquid to a given temperature, manufacturers of liquid heating devices have developed liquid heating units having different configurations.
  • a Chinese utility model patent with the publication number CN201096399Y discloses a liquid heating device comprising a tubular heating body enclosing an inert gas and an electric heating device, the electrodes being connected through the two ends of the heating body
  • the heating body casing has a closed inner tube and an outer tube stacked double-layer cavity tube to form a heating body assembly, each layer of the cavity is filled with liquid, and the outer tube and the inner tube are respectively disposed near the two ends Inlet and outlet, a liquid heating device consisting of a plurality of said heating body assemblies arranged in parallel, and the outer pipe inlet and outlet ports are connected, the inner pipe inlet and outlet ports are connected, and the end heating body assembly inlet port and the water outlet are connected to form an internal through circulation cycle.
  • the heat diffused from the liquid in the inner tube preheats the newly entered liquid, so that the heat of diffusion is absorbed, and the energy is fully utilized. , improved heat conversion efficiency.
  • the overall volume of the liquid heating unit is large, and the liquid circulation passages are all composed of a heating tube, and the inner tube and the outer tube are folded and placed, and the multi-layer folding is adopted.
  • the inner and outer tubes placed are generally bulky and are not suitable for small volume liquid heating devices.
  • the liquid heating unit disclosed in the Chinese invention patent application "heating water dispenser heating mechanism" disclosed in CN101366601A is composed of a set of heating water pipes connected in series with each other, and is heated inside the water pipe.
  • the heaters connected in parallel with each other are respectively arranged, and the top water outlet of the adjacent heating water pipe is connected with the bottom water inlet pipe.
  • the liquid heating unit of this structure the liquid circulation passage is still composed of a heating water pipe, and the heater is placed inside the heating water pipe, and it is necessary to connect the plurality of heating water pipes in series to increase the length of the liquid circulation passage, and the overall structure is also quite awkward. Summary of the invention
  • the first technical problem to be solved by the present invention is to provide a liquid heating unit which does not increase the volume of the entire liquid heating unit on the basis of increasing the length of the liquid flow path in view of the above prior art.
  • Another technical problem to be solved by the present invention is to provide a smoother flow of liquid, which is less prone to eddy currents.
  • the liquid heating unit comprises a flat heating element, and a deflector which is formed in an edge sealing connection with one side of the flat heating element, the deflector and the flat plate Forming a meandering liquid circulation passage between the heating elements, and the flow guiding plate has a liquid inlet port and a liquid outlet port respectively communicating with the liquid inlet end and the liquid outlet end of the liquid circulation passage,
  • the utility model is characterized in that: the liquid inlet and the liquid outlet are divided into an edge portion and a central portion of the deflector, and the liquid circulation passage is arranged in a spiral shape.
  • the time during which the liquid stays in the circulation of the liquid circulation passage can be increased, that is, the liquid is increased.
  • the heating time so that the liquid is fully heated in the liquid circulation passage, the heat conversion efficiency is higher than that of the ordinary linear liquid circulation passage, and it is particularly important that the volume of the entire liquid heating unit is not increased by the liquid circulation passage.
  • the degree of increase, under the same power of the flat heating element, the use of this spiral liquid circulation through the use of a linear liquid flow channel, its heat conversion efficiency has been significantly improved, suitable for a variety of instant liquids heating equipment.
  • the temperature can reach a desired temperature.
  • the width of the spiral liquid flow passage gradually decreases from the liquid inlet to the liquid outlet, so that the liquid is to be Before the flow from the liquid outlet, the liquid circulation channel is narrowed, the liquid pressure is increased, and the temperature is further increased.
  • the residence time of the liquid in the liquid circulation passage can be further increased, so that the liquid can be sufficiently heated.
  • the flat-plate heating element is composed of an insulating heat-conducting plate and an electrothermal film attached to the heat-conducting plate and capable of generating heat after being energized. Since the electric heating film of the flat heating element is directly attached to the insulating heat conducting plate, the heat transfer effect and the thermal response speed are superior to those of the heating body having the electric heating tube, and the water discharge delay can be significantly shortened during use, and the thermal efficiency is higher. , and the appearance is light, firm and beautiful.
  • the flat heating element has a circular shape, and the baffle is also circular.
  • the baffle is sealingly attached to the flat heating element, and the baffle is in phase with the flat heating element.
  • a spiral groove is provided on the contact surface to form the liquid flow path.
  • the technical solution adopted by the present invention to solve the above further technical problem is: forming a angle of 10 to 45 degrees in a clockwise or counterclockwise direction with reference to a straight line formed by directly connecting the liquid inlet and the liquid outlet.
  • the liquid circulation passage is partially a straight passage in the sector range. The arrangement of the straight passage facilitates the smooth circulation of the liquid in the liquid circulation passage, is not easy to generate eddy current, and can make the processing of the circular baffle more convenient.
  • An edge of the baffle is provided with an inwardly extending elastic retracting edge, and an edge of the flat heating element is embedded in the elastic retracting edge of the baffle to form an edge seal with the baffle connection.
  • the present invention has an advantage in that by setting the liquid flow passage between the deflector and the flat heating element in a spiral shape, it is possible to increase the time during which the liquid stays in the liquid circulation passage, that is, increase
  • the heating time of the liquid is such that the liquid is sufficiently heated in the liquid circulation passage, and the heat conversion efficiency is higher than that of the ordinary straight type liquid circulation passage, and it is particularly important that the volume of the entire liquid heating unit is not increased by the liquid.
  • the degree of the circulation passage is increased. Under the flat-shaped heating element of the same power, the spiral liquid circulation and the linear liquid circulation passage are used, and the heat conversion efficiency is remarkably improved, and is suitable for various types.
  • a hot liquid heating device is DRAWINGS
  • FIG. 1 is a schematic perspective view of a three-dimensional structure of a liquid heating unit according to an embodiment of the present invention (as seen from the direction of the deflector).
  • Figure 2 is an exploded view of the liquid heating unit of the embodiment of the present invention (as viewed from the direction of the deflector).
  • Fig. 3 is a perspective view showing the three-dimensional structure of the liquid heating unit in the embodiment of the invention (viewed from the direction of the flat heating element).
  • Fig. 4 is an exploded view 2 of the liquid heating unit in the embodiment of the present invention (as seen from the direction of the flat heating element). detailed description
  • the liquid heating unit shown in FIG. 1 to FIG. 4 includes a circular flat heating element 1 and a sleeve-shaped heating element 1 which is sleeved on the outside and is sealed with one side of the circular flat heating element 1.
  • the circular baffle 2 is connected.
  • the baffle 2 is made of an elastic rubber material, and the edge of the baffle 2 is provided with a ring of inwardly extending elastic backing edge 24, a flat heating element.
  • the edge of 1 is embedded in the elastic snapback edge of the baffle 2 to form an edge sealing connection with the baffle 2;
  • the circular flat heating element 1 is formed by a circular metal heat conducting plate 11 covered with an insulating layer.
  • the mouth 21 and the liquid outlet 22, the liquid inlet 21 and the liquid outlet 22 are divided into an edge portion and a central portion of the deflector.
  • the liquid inlet 21 is at the edge portion of the deflector 1, and the liquid outlet 22 at the center of the deflector and the central portion (inlet 21 and outlet)
  • the positions of 22 are interchangeable.
  • the liquid inlet port 21 and the liquid outlet port 22 are respectively in communication with the liquid inlet end 31 and the liquid outlet end 32 of the liquid flow passage, and the liquid flow passages are arranged in a spiral shape.
  • the liquid flow passage arranged in a spiral shape may be formed by a spiral groove formed on the metal heat conducting plate 11, or may be spirally spiraled between the flat heating element 1 and the deflector 2 by a spiral heat pipe.
  • the surface of the baffle 2 that is in contact with the flat heating element 1 is provided with a spiral groove 23, so that the spiral is formed between the baffle 2 and the flat heating element 1.
  • the liquid circulation passage of the shape is more convenient to process, and when the liquid passes through the liquid circulation passage, it is directly in contact with the metal heat conduction plate 11, and the heat generated by the metal heat conduction plate 11 can be better absorbed by the liquid.
  • the liquid heating unit of the embodiment When the liquid heating unit of the embodiment is used for heating, the liquid is in a liquid flow passage having a spiral structure.
  • Internal circulation can increase the residence time of the liquid in the circulation of the liquid circulation channel, that is, increase the heating time of the liquid, so that the liquid is fully heated in the liquid circulation channel, and the heat conversion efficiency is higher than that of the ordinary linear liquid circulation channel. It is important, and especially important, that the volume of the entire liquid heating unit is not increased by increasing the degree of liquid flow passage. Under the same power of the flat heating element 1, the spiral liquid circulation ratio is adopted.
  • the linear liquid circulation channel has a significant improvement in heat conversion efficiency and is suitable for various instant liquid heating devices.
  • the width of the spiral liquid flow passage is gradually decreased from the liquid inlet 21 to the liquid outlet 22, so that the pressure is increased when the liquid is about to flow out of the liquid outlet, and the temperature rises. High, it is also possible to further increase the residence time of the liquid in the liquid circulation channel, so that the liquid can be fully heated.
  • the spiral type liquid circulation passage is expanded from the inside to the outside, in order to be able to arrange the spiral type liquid circulation passage on the circular baffle 2, the liquid inlet port 21 and the liquid outlet port 22 are directly
  • the line formed by the connection is a reference, clockwise or counterclockwise deflection 10 to 45 degrees to form a fan-shaped range, and the liquid circulation channel is a linear channel in the sector range, and the arrangement of the linear channel is very favorable.
  • the liquid circulates smoothly in the liquid circulation passage, and eddy current is less likely to occur.
  • the surfaces of the baffle 2 in this embodiment which are not in contact with the flat heating element are also provided with spiral grooves 25 which are provided as steam guiding grooves.

Landscapes

  • 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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

A liquid heating unit includes a planar heating body (1) and a flow guiding plate (2) hermetically connected with an edge of a side face of the heating body (1). A meandering liquid flow passage is formed between the flow guiding plate (2) and the heating body (1). The flow guiding plate (2) has a liquid inlet (21) and a liquid outlet (22) which are respectively communicated with a liquid inlet end and a liquid outlet end of the liquid flow passage. The liquid inlet (21) and the liquid outlet (22) are respectively positioned at the edge and the center of the flow guiding plate (2), and the liquid flow passage is arranged in spiral shape. The liquid heating unit is high in thermal conversion efficiency, and its volume does not increase along with the increase of the length of the liquid flow passage.

Description

一种液体加热单元 技术领域  Liquid heating unit
本发明涉及一种加热电源， 特别是涉及一种用于快速加热液体的液体加热单元。 背景技术  The present invention relates to a heating power source, and more particularly to a liquid heating unit for rapidly heating a liquid. Background technique
饮水器、热水器等给液体加热装置中，液体加热单元是最关键的部件。为了减少将 给定的液体加热到给定温度所需的时间，液体加热装置的制造商已开发出了具有不同构 造的液体加热单元。  In liquid heating devices such as drinking fountains and water heaters, the liquid heating unit is the most critical component. In order to reduce the time required to heat a given liquid to a given temperature, manufacturers of liquid heating devices have developed liquid heating units having different configurations.
例如公告号为 CN201096399Y (专利号为 ZL200720177939.0)的中国实用新型专利就 公布了一种液体加热装置， 其包括封闭有惰性气体和电加热装置的管状加热体， 电极穿 过加热体两端连接在电源上，加热体外套有封闭的内管和外管叠套式双层空腔管构成加 热体总成， 每层管腔内充满液体， 外管和内管靠近两端部位分别各设有进出水口， 由若 干个所述加热体总成平行排列、 且外管进出水口连接、 内管进出水口连接、 末尾加热体 总成进水口与出水口连接所构成内部贯通循环的液体加热装置，是利用加热管总成的外 管和内管中的液体热交换， 将内管中的液体扩散出来的热量对新进入的液体进行预热， 使扩散的热量被吸收， 达到了充分利用能量的作用， 提高了热转换效率。但是这种结构 的液体加热装置， 为了提供热转换效率， 其液体加热单元的整体体积较大， 并且液体流 通通道都是采用加热管组成， 釆用内管和外管折叠放置方式， 多层折叠放置的内管和外 管的体积总体较大， 不适用于小型体积的液体加热装置。  For example, a Chinese utility model patent with the publication number CN201096399Y (patent number ZL200720177939.0) discloses a liquid heating device comprising a tubular heating body enclosing an inert gas and an electric heating device, the electrodes being connected through the two ends of the heating body In the power supply, the heating body casing has a closed inner tube and an outer tube stacked double-layer cavity tube to form a heating body assembly, each layer of the cavity is filled with liquid, and the outer tube and the inner tube are respectively disposed near the two ends Inlet and outlet, a liquid heating device consisting of a plurality of said heating body assemblies arranged in parallel, and the outer pipe inlet and outlet ports are connected, the inner pipe inlet and outlet ports are connected, and the end heating body assembly inlet port and the water outlet are connected to form an internal through circulation cycle. By using the heat exchange between the outer tube and the inner tube of the heating tube assembly, the heat diffused from the liquid in the inner tube preheats the newly entered liquid, so that the heat of diffusion is absorbed, and the energy is fully utilized. , improved heat conversion efficiency. However, in the liquid heating device of this structure, in order to provide heat conversion efficiency, the overall volume of the liquid heating unit is large, and the liquid circulation passages are all composed of a heating tube, and the inner tube and the outer tube are folded and placed, and the multi-layer folding is adopted. The inner and outer tubes placed are generally bulky and are not suitable for small volume liquid heating devices.
还例如公开号为 CN101366601A (申请号为 200810121103.8)的中国发明专利申请 《即热式饮水机加热机构》中公开的液体加热单元， 是由一组相互串接连通的加热水管 连接构成， 加热水管内分别设置相互并联连接的加热器， 相邻加热水管的顶部出水口与 底部进水口管道连接。这种结构的液体加热单元，液体的流通通道还是有加热水管组成， 加热器则放置在加热水管内部，需要相互串接连通多组加热水管才能增加液体流通通道 的长度， 整体结构也是相当笨拙。 发明内容  For example, the liquid heating unit disclosed in the Chinese invention patent application "heating water dispenser heating mechanism" disclosed in CN101366601A (Application No. 200810121103.8) is composed of a set of heating water pipes connected in series with each other, and is heated inside the water pipe. The heaters connected in parallel with each other are respectively arranged, and the top water outlet of the adjacent heating water pipe is connected with the bottom water inlet pipe. The liquid heating unit of this structure, the liquid circulation passage is still composed of a heating water pipe, and the heater is placed inside the heating water pipe, and it is necessary to connect the plurality of heating water pipes in series to increase the length of the liquid circulation passage, and the overall structure is also quite awkward. Summary of the invention
本发明所要解决的第一个技术问题是针对上述现有技术提供一种在增加液体流通 通道的长度基础上， 不增加整个液体加热单元体积的液体加热单元。  The first technical problem to be solved by the present invention is to provide a liquid heating unit which does not increase the volume of the entire liquid heating unit on the basis of increasing the length of the liquid flow path in view of the above prior art.
本发明所要解决的另一个技术问题是提供一种液体流经时更为顺畅、不易产生涡流  Another technical problem to be solved by the present invention is to provide a smoother flow of liquid, which is less prone to eddy currents.
- 1 - 确认本 的液体加热单元。 - 1 - Confirmation Liquid heating unit.
本发明解决上述第一个技术问题所采用的技术方案为：该液体加热单元，包括平板 状发热体， 与平板状发热体 的其中一个侧面形成边缘密封连接的导流板， 导流板与平 板状发热体之间形成有迂回曲折的液体流通通道，并且所述的导流板上具有进液口和出 液口， 分别与所述液体流通通道的进液端和出液端相连通， 其特征在于： 所述的进液口 和出液口分处导流板的边缘部位和中央部位， 并且所述的液体流通通道呈螺旋形布置。  The technical solution adopted by the present invention to solve the above first technical problem is as follows: the liquid heating unit comprises a flat heating element, and a deflector which is formed in an edge sealing connection with one side of the flat heating element, the deflector and the flat plate Forming a meandering liquid circulation passage between the heating elements, and the flow guiding plate has a liquid inlet port and a liquid outlet port respectively communicating with the liquid inlet end and the liquid outlet end of the liquid circulation passage, The utility model is characterized in that: the liquid inlet and the liquid outlet are divided into an edge portion and a central portion of the deflector, and the liquid circulation passage is arranged in a spiral shape.
这样，液体通过进液口流入液体流通通道后，加热时， 由于液体在呈螺旋形结构的 液体流通通道内流通， 可以增加液体在液体流通通道内流通内停留的时间， 也就是增加 了液体的受热时间， 从而使液体在液体流通通道内得到充分受热， 热转换效率比普通的 直线型的液体流通通道要高， 并且尤为重要的是， 整个液体加热单元的体积没有因为增 加了液体流通通道的程度而增加， 在同样功率的平板状发热体下， 采用这种螺旋形的液 体流通通比采用直线性的液体流通通道， 其热转换效率得到了明显的提高， 适用于各种 即热型液体加热装置。  Thus, after the liquid flows into the liquid circulation passage through the liquid inlet, when the liquid circulates in the liquid circulation passage having the spiral structure during heating, the time during which the liquid stays in the circulation of the liquid circulation passage can be increased, that is, the liquid is increased. The heating time, so that the liquid is fully heated in the liquid circulation passage, the heat conversion efficiency is higher than that of the ordinary linear liquid circulation passage, and it is particularly important that the volume of the entire liquid heating unit is not increased by the liquid circulation passage. The degree of increase, under the same power of the flat heating element, the use of this spiral liquid circulation through the use of a linear liquid flow channel, its heat conversion efficiency has been significantly improved, suitable for a variety of instant liquids heating equipment.
为了使液体从出液口流出时，温度能达到理想温度，作为改进，所述螺旋形的液体 流通通道的宽度从所述进液口到所述出液口方向逐渐减小， 这样， 液体将要从出液口流 出前， 由于液体流通通道宽度变窄， 液体压力增加， 温度也会进一步升髙； 另外还可以 进一步增加液体在液体流通通道停留时间， 使液体能够充分受热。  In order to allow the liquid to flow out from the liquid outlet, the temperature can reach a desired temperature. As a modification, the width of the spiral liquid flow passage gradually decreases from the liquid inlet to the liquid outlet, so that the liquid is to be Before the flow from the liquid outlet, the liquid circulation channel is narrowed, the liquid pressure is increased, and the temperature is further increased. In addition, the residence time of the liquid in the liquid circulation passage can be further increased, so that the liquid can be sufficiently heated.
所述平板状发热体由绝缘导热板及贴附在导热板上的、 通电后能发热的电热膜组 成。 由于平板状发热体的电热膜是直接贴附在绝缘导热板上的， 因此其传热效果及热响 应速度均优于有电热管的加热体， 使用时出水延时可明显缩短， 热效率更高， 并且外观 轻巧， 牢固美观。  The flat-plate heating element is composed of an insulating heat-conducting plate and an electrothermal film attached to the heat-conducting plate and capable of generating heat after being energized. Since the electric heating film of the flat heating element is directly attached to the insulating heat conducting plate, the heat transfer effect and the thermal response speed are superior to those of the heating body having the electric heating tube, and the water discharge delay can be significantly shortened during use, and the thermal efficiency is higher. , and the appearance is light, firm and beautiful.
所述平板状发热体呈圆形，所述导流板也呈圆形，所述导流板密封贴合在所述平板 状发热体上，所述导流板与所述平板状发热体相接触的面上设置有螺旋形凹槽以形成所 述液体流通通道。这种结构加工起来比较方便， 并且液体在液体流通通道中经过时， 是 直接与金属导热板相接触的， 金属导热板发出的热量能较好被液体吸收， 不需要像现有 技术中那样通过加热管道来制作液体流通通道。  The flat heating element has a circular shape, and the baffle is also circular. The baffle is sealingly attached to the flat heating element, and the baffle is in phase with the flat heating element. A spiral groove is provided on the contact surface to form the liquid flow path. The structure is relatively convenient to process, and when the liquid passes through the liquid circulation passage, it is directly in contact with the metal heat conduction plate, and the heat generated by the metal heat conduction plate can be better absorbed by the liquid, and does not need to pass through as in the prior art. Heat the pipe to make a liquid flow path.
本发明解决上述进一步技术问题所采用的技术方案为. ·在以所述进液口和所述出液 口直接相连所成的直线为基准、顺时针或逆时针偏转 10〜45度角形成一个扇形范围内， 所述的液体流通通道在该扇形范围内的局部为直线通道。这段直通道的设置有利于液体 在液体流通通道内顺利流通，不易产生涡流，并且可以使呈圆形导流板的加工更加方便。  The technical solution adopted by the present invention to solve the above further technical problem is: forming a angle of 10 to 45 degrees in a clockwise or counterclockwise direction with reference to a straight line formed by directly connecting the liquid inlet and the liquid outlet. In the fan-shaped range, the liquid circulation passage is partially a straight passage in the sector range. The arrangement of the straight passage facilitates the smooth circulation of the liquid in the liquid circulation passage, is not easy to generate eddy current, and can make the processing of the circular baffle more convenient.
所述导流板的边缘设置有一圈向内延伸的弹性回扣边，所述平板状发热体的边缘嵌 入所述导流板的弹性回扣边之内从而与所述导流板之间形成边缘密封连接。  An edge of the baffle is provided with an inwardly extending elastic retracting edge, and an edge of the flat heating element is embedded in the elastic retracting edge of the baffle to form an edge seal with the baffle connection.
与现有技术相比，本发明的优点在于：通过将导流板与平板状发热体之间的液体流 通通道设置成螺旋形， 可以增加液体在液体流通通道内流通内停留的时间， 也就是增加 了液体的受热时间， 从而使液体在液体流通通道内得到充分受热， 热转换效率比普通的 直线型的液体流通通道要髙， 并且尤为重要的是， 整个液体加热单元的体积没有因为增 加了液体流通通道的程度而增加，在同样功率的平板状发热体下， 采用这种螺旋形的液 体流通通比釆用直线性的液体流通通道， 其热转换效率得到了明显的提高， 适用于各种 即热型液体加热装置。 附图说明 Compared with the prior art, the present invention has an advantage in that by setting the liquid flow passage between the deflector and the flat heating element in a spiral shape, it is possible to increase the time during which the liquid stays in the liquid circulation passage, that is, increase The heating time of the liquid is such that the liquid is sufficiently heated in the liquid circulation passage, and the heat conversion efficiency is higher than that of the ordinary straight type liquid circulation passage, and it is particularly important that the volume of the entire liquid heating unit is not increased by the liquid. The degree of the circulation passage is increased. Under the flat-shaped heating element of the same power, the spiral liquid circulation and the linear liquid circulation passage are used, and the heat conversion efficiency is remarkably improved, and is suitable for various types. A hot liquid heating device. DRAWINGS
图 1为本发明实施例中液体加热单元的立体结构示意图一 (从导流板方向看)。  1 is a schematic perspective view of a three-dimensional structure of a liquid heating unit according to an embodiment of the present invention (as seen from the direction of the deflector).
图 2为本发明实施例中液体加热单元的爆炸图一 (从导流板方向看)。  Figure 2 is an exploded view of the liquid heating unit of the embodiment of the present invention (as viewed from the direction of the deflector).
图 3 为本发明实施例中液体加热单元的立体结构示意图二 (从平板状发热体方向 看)。  Fig. 3 is a perspective view showing the three-dimensional structure of the liquid heating unit in the embodiment of the invention (viewed from the direction of the flat heating element).
图 4为本发明实施例中液体加热单元的爆炸图二 (从平板状发热体方向看)。 具体实施方式  Fig. 4 is an exploded view 2 of the liquid heating unit in the embodiment of the present invention (as seen from the direction of the flat heating element). detailed description
以下结合附图实施例对本发明作进一步详细描述。  The invention will be further described in detail below with reference to the embodiments of the drawings.
如图 1〜图 4所示的液体加热单元， 包括圆形的平板状发热体 1 , 和套设在圆形的 平板状发热体 1外、 并与圆形平板状发热体 1的一面密封贴合连接的圆形的导流板 2， 本实施例中导流板 2由弹性橡胶材料制成，并且导流板 2的边缘设置有一圈向内延伸的 '弹性回扣边 24，平板状发热体 1的边缘嵌入导流板 2的弹性回扣边之内从而与导流板 2 之间形成边缘密封连接；所述圆形平板状发热体 1由一圆形的覆盖有绝缘层的金属导热 板 11与贴附在导热板上的、 通电后能发热的电热膜 12组成； 所述导流板 2与平板状发 热体 1之间形成有液体流通通道， 并且所述的导流板上具有进液口 21和出液口 22， 进 液口 21和出液口 22分处导流板的边缘部位和中央部位， 本实施例中， 进液口 21处于 导流板 1的边缘部位， 出液口 22处于导流板的和中央部位（进液口 21和出液口 22的 位置可以互换），进液口 21和出液口 22分别与所述液体流通通道的进液端 31和出液端 32相连通， 并且所述的液体流通通道呈螺旋形布置。  The liquid heating unit shown in FIG. 1 to FIG. 4 includes a circular flat heating element 1 and a sleeve-shaped heating element 1 which is sleeved on the outside and is sealed with one side of the circular flat heating element 1. The circular baffle 2 is connected. In the embodiment, the baffle 2 is made of an elastic rubber material, and the edge of the baffle 2 is provided with a ring of inwardly extending elastic backing edge 24, a flat heating element. The edge of 1 is embedded in the elastic snapback edge of the baffle 2 to form an edge sealing connection with the baffle 2; the circular flat heating element 1 is formed by a circular metal heat conducting plate 11 covered with an insulating layer. And an electric heating film 12 attached to the heat conducting plate and capable of generating heat after being energized; a liquid circulation channel is formed between the baffle 2 and the flat heating element 1, and the liquid guiding plate has a liquid inlet The mouth 21 and the liquid outlet 22, the liquid inlet 21 and the liquid outlet 22 are divided into an edge portion and a central portion of the deflector. In this embodiment, the liquid inlet 21 is at the edge portion of the deflector 1, and the liquid outlet 22 at the center of the deflector and the central portion (inlet 21 and outlet) The positions of 22 are interchangeable. The liquid inlet port 21 and the liquid outlet port 22 are respectively in communication with the liquid inlet end 31 and the liquid outlet end 32 of the liquid flow passage, and the liquid flow passages are arranged in a spiral shape.
上述呈螺旋形布置的液体流通通道可以由开设在金属导热板 11上的螺旋形凹槽构 成， 也可以通过一根呈螺旋形的导热管盘旋在平板状发热体 1与导流板 2之间构成； 本 实施例中，所述导流板 2与平板状发热体 1相接触的面上设置有螺旋形凹槽 23，从而使 导流板 2与平板状发热体 1之间形成所述螺旋形的液体流通通道，这种结构加工起来比 较方便， 并且液体在液体流通通道中经过时， 是直接与金属导热板 11相接触的， 金属 导热板 11发出的热量能较好被液体吸收。  The liquid flow passage arranged in a spiral shape may be formed by a spiral groove formed on the metal heat conducting plate 11, or may be spirally spiraled between the flat heating element 1 and the deflector 2 by a spiral heat pipe. In the present embodiment, the surface of the baffle 2 that is in contact with the flat heating element 1 is provided with a spiral groove 23, so that the spiral is formed between the baffle 2 and the flat heating element 1. The liquid circulation passage of the shape is more convenient to process, and when the liquid passes through the liquid circulation passage, it is directly in contact with the metal heat conduction plate 11, and the heat generated by the metal heat conduction plate 11 can be better absorbed by the liquid.
在使用本实施例的液体加热单元加热时，由于液体在呈螺旋形结构的液体流通通道 内流通， 可以增加液体在液体流通通道内流通内停留的时间， 也就是增加了液体的受热 时间， 从而使液体在液体流通通道内得到充分受热， 热转换效率比普通的直线型的液体 流通通道要髙， 并且尤为重要的是， 整个液体加热单元的体积没有因为增加了液体流通 通道的程度而增加，在同样功率的平板状发热体 1下， 釆用这种螺旋形的液体流通通比 采用直线性的液体流通通道， 其热转换效率得到了明显的提高， 适用于各种即热型液体 加热装置。 When the liquid heating unit of the embodiment is used for heating, the liquid is in a liquid flow passage having a spiral structure. Internal circulation can increase the residence time of the liquid in the circulation of the liquid circulation channel, that is, increase the heating time of the liquid, so that the liquid is fully heated in the liquid circulation channel, and the heat conversion efficiency is higher than that of the ordinary linear liquid circulation channel. It is important, and especially important, that the volume of the entire liquid heating unit is not increased by increasing the degree of liquid flow passage. Under the same power of the flat heating element 1, the spiral liquid circulation ratio is adopted. The linear liquid circulation channel has a significant improvement in heat conversion efficiency and is suitable for various instant liquid heating devices.
另外， 本实施例中， 上述呈螺旋形的液体流通通道的宽度从进液口 21到出液口 22 的方向逐渐减小， 这样可以使液体在即将流出出液口时， 压力增加， 温度升高， 还可以 进一步增加液体在液体流通通道停留时间， 使液体能够充分受热。  In addition, in the embodiment, the width of the spiral liquid flow passage is gradually decreased from the liquid inlet 21 to the liquid outlet 22, so that the pressure is increased when the liquid is about to flow out of the liquid outlet, and the temperature rises. High, it is also possible to further increase the residence time of the liquid in the liquid circulation channel, so that the liquid can be fully heated.
因为螺旋型的液体流通通道是自内向外膨胀的，为了能将螺旋型的液体流通通道设 置在圆形的导流板 2上，在以所述进液口 21和所述出液口 22直接相连所成的直线为基 准、 顺时针或逆时针偏转 10〜45度角形成一个扇形范围内， 所述的液体流通通道在该 扇形范围内的局部为直线通道，这段直线通道的设置非常利于液体在液体流通通道内顺 利流通， 不易产生涡流。  Since the spiral type liquid circulation passage is expanded from the inside to the outside, in order to be able to arrange the spiral type liquid circulation passage on the circular baffle 2, the liquid inlet port 21 and the liquid outlet port 22 are directly The line formed by the connection is a reference, clockwise or counterclockwise deflection 10 to 45 degrees to form a fan-shaped range, and the liquid circulation channel is a linear channel in the sector range, and the arrangement of the linear channel is very favorable. The liquid circulates smoothly in the liquid circulation passage, and eddy current is less likely to occur.
另外，本实施例中的导流板 2与所述平板状发热体不相接触的面上也设置有螺旋形 凹槽 25， 这些螺旋形凹槽的设置可以作为蒸汽导流槽。  Further, the surfaces of the baffle 2 in this embodiment which are not in contact with the flat heating element are also provided with spiral grooves 25 which are provided as steam guiding grooves.

Claims

权 利 要 求 Rights request
1、一种液体加热单元， 包括平板状发热体 (1)， 与平板状发热体 (1)的其中一个侧面 形成边缘密封连接的导流板 (2)， 导流板 (2)与平板状发热体 (1)之间形成有迂回曲折的液 体流通通道， 并且所述的导流板上具有进液口 (21)和出液口 (22)， 分别与所述液体流通 通道的进液端和出液端相连通， 其特征在于： 所述的进液口 (21)和出液口 (22)分处导流 板的边缘部位和中央部位， 并且所述的液体流通通道呈螺旋形布置。 A liquid heating unit comprising a flat heating element (1), a baffle (2) having an edge sealing connection with one of the side faces of the flat heating element (1), a deflector (2) and a flat plate A heating and twisting liquid flow passage is formed between the heating elements (1), and the liquid guiding plate has a liquid inlet port (21) and a liquid outlet port (22), respectively, and a liquid inlet end of the liquid flow passage Communicating with the liquid discharge end, wherein: the liquid inlet (21) and the liquid outlet (22) are divided into an edge portion and a central portion of the deflector, and the liquid circulation passage is spirally arranged .
2、 根据权利要求 1所述的液体加热单元， 其特征在于： 所述螺旋形的液体流通通 道的宽度从所述进液口 (21)到所述出液口 (22)方向逐渐减小。  The liquid heating unit according to claim 1, wherein the width of the spiral liquid flow passage gradually decreases from the liquid inlet port (21) to the liquid outlet port (22).
3、 根据权利要求 1所述的液体加热单元， 其特征在于： 所述平板状发热体 (1)由绝 缘导热板 (11)及贴附在导热板 (11)上的、 通电后能发热的电热膜 (12)组成。  The liquid heating unit according to claim 1, wherein the flat heating element (1) is made of an insulating and heat conducting plate (11) and attached to the heat conducting plate (11), and can be heated after being energized. Electrothermal film (12) composition.
4、 根据权利要求 1或 2或 3所述的液体加热单元， 其特征在于： 所述平板状发热 体 (1)呈圆形， 所述导流板 (2)也呈圆形， 所述导流板 (2)密封贴合在所述平板状发热体 (1) 上，所述导流板 (2)在与所述平板状发热体 (1)相接触的面上设置有螺旋形凹槽 (23)以形成 所述液体流通通道。  The liquid heating unit according to claim 1 or 2 or 3, wherein the flat heating element (1) has a circular shape, and the deflector (2) is also circular, and the guide The flow plate (2) is sealingly attached to the flat heating element (1), and the deflector (2) is provided with a spiral groove on a surface in contact with the flat heating element (1) (23) to form the liquid circulation passage.
5、 根据权利要求 4所述的液体加热单元， 其特征在于： 在以所述进液口 (21)和所 述出液口 (22)直接相连所成的直线为基准、顺时针或逆时针偏转 10〜45度角形成一个扇 形范围内， 所述的液体流通通道在该扇形范围内的局部为直线通道。  The liquid heating unit according to claim 4, wherein: a straight line formed by directly connecting the liquid inlet (21) and the liquid outlet (22), clockwise or counterclockwise The angle of deflection of 10 to 45 degrees forms a fan-shaped range, and the liquid circulation passage is partially a straight passage in the range of the sector.
6、 根据权利要求 1所述的液体加热单元， 其特征在于： 所述导流板 (2)的边缘设置 有一圈向内延伸的弹性回扣边 (24)，所述平板状发热体 (1)的边缘嵌入所述导流板 (2)的弹 性回扣边 (24)之内从而与所述导流板 (2)之间形成边缘密封连接。  The liquid heating unit according to claim 1, characterized in that: the edge of the baffle (2) is provided with a ring of elastically extending edges (24) extending inwardly, and the flat heating element (1) The edge is embedded within the resilient snapback edge (24) of the baffle (2) to form an edge sealing connection with the baffle (2).
PCT/CN2010/000768 2009-07-06 2010-06-01 Liquid heating unit WO2011003267A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200910100550.X 2009-07-06
CN200910100550A CN101625148A (en) 2009-07-06 2009-07-06 Liquid-heating unit

Publications (1)

Publication Number Publication Date
WO2011003267A1 true WO2011003267A1 (en) 2011-01-13

Family

ID=41521076

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/000768 WO2011003267A1 (en) 2009-07-06 2010-06-01 Liquid heating unit

Country Status (2)

Country Link
CN (1) CN101625148A (en)
WO (1) WO2011003267A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2980561A1 (en) * 2011-09-23 2013-03-29 Ecodrop Water heating device for generation of vapor, has heating body defining spiral chamber, where inlet opening of chamber is located in central region of spiral, and outlet opening of chamber is located in peripheral region of spiral

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101625148A (en) * 2009-07-06 2010-01-13 宁波市万泓电器科技有限公司 Liquid-heating unit
US10115571B2 (en) * 2014-06-04 2018-10-30 Applied Materials, Inc. Reagent delivery system freeze prevention heat exchanger
CN107178774A (en) * 2016-03-11 2017-09-19 深圳市蒸妙科技有限公司 Helical disk steam generator with heating wire
CN106765001A (en) * 2017-02-20 2017-05-31 傅根花 Instant steam generator
CN109737592A (en) * 2019-02-18 2019-05-10 王伟 A kind of heating device
CN113669947A (en) * 2020-05-13 2021-11-19 青岛海尔新能源电器有限公司 Phase-change heat storage type heat pump system
CN111735201A (en) * 2020-06-30 2020-10-02 周林斌 Heating method of instant hot water heater

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87204129U (en) * 1987-04-15 1988-01-13 长沙市白铁制品厂 Water-flow type quick heater
CN2056738U (en) * 1989-10-10 1990-05-02 胡宁江 Household water heater
CN101457977A (en) * 2009-01-09 2009-06-17 宁波圣莱达电器有限公司 Fast heating type drinking water heater
CN101625148A (en) * 2009-07-06 2010-01-13 宁波市万泓电器科技有限公司 Liquid-heating unit
CN201439991U (en) * 2009-07-06 2010-04-21 宁波市万泓电器科技有限公司 Liquid heating unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87204129U (en) * 1987-04-15 1988-01-13 长沙市白铁制品厂 Water-flow type quick heater
CN2056738U (en) * 1989-10-10 1990-05-02 胡宁江 Household water heater
CN101457977A (en) * 2009-01-09 2009-06-17 宁波圣莱达电器有限公司 Fast heating type drinking water heater
CN101625148A (en) * 2009-07-06 2010-01-13 宁波市万泓电器科技有限公司 Liquid-heating unit
CN201439991U (en) * 2009-07-06 2010-04-21 宁波市万泓电器科技有限公司 Liquid heating unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2980561A1 (en) * 2011-09-23 2013-03-29 Ecodrop Water heating device for generation of vapor, has heating body defining spiral chamber, where inlet opening of chamber is located in central region of spiral, and outlet opening of chamber is located in peripheral region of spiral

Also Published As

Publication number Publication date
CN101625148A (en) 2010-01-13

Similar Documents

Publication Publication Date Title
WO2011003267A1 (en) Liquid heating unit
CN109506505B (en) Heat pipe with optimized distance design
CN109373792B (en) Heat pipe with optimally designed included angle of free end face
CN109506504B (en) Upper and lower pipe box heat pipe
CN101485537B (en) Device for producing high-temperature steam
CN109302757A (en) Heat the PTC electricity heat-producing machine of water
CN208779686U (en) Electric heating water tank
CN202853124U (en) Waste heat collecting device of water boiler electric water heater
CN107664448B (en) Heat pipe with variable heating power
CN202009504U (en) Quartz glass heating tube
CN201439991U (en) Liquid heating unit
CN102252413B (en) Liquid heating unit and manufacture process thereof
CN209819889U (en) Safe compact heating device
CN210165461U (en) Electric heating superconducting heating sheet
CN205561226U (en) Heat -generating body subassembly
CN207729823U (en) A kind of double barrels type electromagnetic heater
CN214949784U (en) Instant heating type electric water heating device
CN209371374U (en) Semiconductor heat booster with reheating function
CN215337052U (en) Combined water heater
CN101943464A (en) Liquid heating unit and manufacturing process thereof
CN209877340U (en) Quick-heating water boiler
CN215412496U (en) Instant heating type electric water heater with multi-channel parallel pipelines
CN210485864U (en) Heat exchange system
CN220750390U (en) Liquid uniform heating temperature control system
CN218328663U (en) Water heating device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10796644

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10796644

Country of ref document: EP

Kind code of ref document: A1