WO2013041027A1 - Dirt-proof water level sensing device and solar water heater using same - Google Patents

Dirt-proof water level sensing device and solar water heater using same Download PDF

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Publication number
WO2013041027A1
WO2013041027A1 PCT/CN2012/081632 CN2012081632W WO2013041027A1 WO 2013041027 A1 WO2013041027 A1 WO 2013041027A1 CN 2012081632 W CN2012081632 W CN 2012081632W WO 2013041027 A1 WO2013041027 A1 WO 2013041027A1
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Prior art keywords
water level
water
water tank
electrically connected
insulated
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PCT/CN2012/081632
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French (fr)
Chinese (zh)
Inventor
敖凯平
陆峰
支予生
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艾欧史密斯(中国)热水器有限公司
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Publication of WO2013041027A1 publication Critical patent/WO2013041027A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
    • F24S40/50—Preventing overheating or overpressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S90/00—Solar heat systems not otherwise provided for
    • F24S90/10—Solar heat systems not otherwise provided for using thermosiphonic circulation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/265—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors for discrete levels
    • 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

  • FIG. 1 is a schematic structural view of Embodiment 1 of the present invention.
  • FIG. 4 is a schematic structural diagram of Embodiment 4 of the present invention, which is actually applied.
  • the control circuit controls the solenoid valve to be in a closed state to stop rehydration.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

A dirt-proof water level sensing device for a solar water heater belonging to the technical field of water heaters. The device comprises a water tank (14) and at least two water level electrodes (7, 9). The water tank (14) is provided with a bypass pipe (15). At least one water level electrode (7, 9) is electrically connected to the water tank (14) directly or indirectly, and insulated from the other water level electrode (7, 9). The other water level electrode (7, 9) is electrically connected to the bypass pipe (15) at a height equal to a predetermined water level of the water tank (14). As the water level electrode (7, 9) is in a state where it is connected conductively with a circulation pipe of metallic material and an inner liner of a heat collector, correspondingly increasing the surface area of the water level electrodes (7, 9) themselves, failures of the probe due to fouling are greatly reduced, and the existing pipes are utilised rationally as constituent parts of the liquid level sensor, and therefore, a significant advantage in costs is achieved. Also disclosed is a solar water heater using the device.

Description

一种抗垢型水位传感装置及采用该装置的太阳能热水器 交叉引用 本申请要求于 2011年 9月 22日递交的中国申请案 201110283645.7， 发 明名称为 "一种抗垢型水位传感装置及采用该装置的太阳能热水器" 的优先 权， 且将此申请作为参考。 技术领域 本发明涉及一种热水器的水位传感装置， 尤其是一种热水器的抗垢型水 位传感装置， 同时涉及采用该装置的太阳能热水器， 属于热水器技术领域。 背景技术 由于日常用水中存在杂质， 且钙、 镁等金属离子在水温升高后会形成碳 酸钙、 碳素镁等水垢， 因此现有热水器的水位传感装置使用寿命都很短， 一 般 1-2年就会由于表面附着水垢而失效， 需要频繁更换， 给使用者带来不 便。 发明内容 本发明的目的在于： 针对上述现有技术存在的问题， 提出一种可以有效 抑制因结垢而失效的抗垢型水位传感装置， 同时给出采用该装置的太阳能热 水器， 从而给热水器的用户带来更多便利。  Anti-scaling water level sensing device and solar water heater using the same The present application claims the Chinese application file 201110283645.7 filed on September 22, 2011, the invention name is "an anti-scaling water level sensing device and adopting The solar water heater of the device is entitled to the priority of this application. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water level sensing device for a water heater, and more particularly to an anti-scaling water level sensing device for a water heater, and to a solar water heater using the same, which belongs to the technical field of water heaters. BACKGROUND OF THE INVENTION Due to the presence of impurities in daily water, metal ions such as calcium and magnesium form scales such as calcium carbonate and carbon magnesium after the water temperature rises, so the water level sensing device of the existing water heater has a short service life, generally 1 - 2 years will be invalid due to the adhesion of scale on the surface, which needs to be replaced frequently, which is inconvenient for the user. SUMMARY OF THE INVENTION The object of the present invention is to provide an anti-scaling water level sensing device capable of effectively suppressing failure due to fouling, and to provide a solar water heater using the device, thereby providing a water heater. Users bring more convenience.
为了达到以上目的， 本发明的抗垢型水位传感装置包括水箱和至少两个 水位电极， 所述水箱设有旁通管， 至少一个所述水位电极与所述水箱直接或 间接电连接且与另一水位电极绝缘， 所述另一水位电极与所述水箱绝缘且与 所述旁通管相对所述水箱预定水位等高位置电连接。  In order to achieve the above object, the anti-scale water level sensing device of the present invention comprises a water tank and at least two water level electrodes, the water tank is provided with a bypass pipe, and at least one of the water level electrodes is electrically connected directly or indirectly to the water tank and The other water level electrode is insulated, and the other water level electrode is insulated from the water tank and electrically connected to the bypass pipe at a position equal to a predetermined water level of the water tank.
这样， 只要水箱中的水位达到预定水位， 在旁通管的连通作用下， 与之 电连接的另一水位电极将与电连接于水箱的电极在水的作用下导通， 从而发 出相应的高水位信号； 而当水箱中的水位低于预定水位， 与旁通管电连接的 另一水位电极将与电连接于水箱的水位电极因无导通介质而不导通， 从而发 出相应的低水位信号； 由此控制停止补水或启动补水。 由于本发明中， 水箱 和旁通管分别成为两水位电极的导电扩展部分， 不会因结垢导致传感失效， 从而有效抑制了因结垢造成的监测故障， 保证了热水器的长期稳定运行， 给 使用者带来便利。 附图说明 下面结合附图对本发明作进一步的说明。 In this way, as long as the water level in the water tank reaches the predetermined water level, under the connection of the bypass pipe, The other water level electrode electrically connected will be electrically connected to the electrode electrically connected to the water tank under the action of water, thereby emitting a corresponding high water level signal; and when the water level in the water tank is lower than the predetermined water level, the other connection with the bypass tube is electrically connected. The water level electrode and the water level electrode electrically connected to the water tank are not turned on due to the non-conducting medium, thereby emitting a corresponding low water level signal; thereby controlling to stop the water supply or start the water supply. In the present invention, the water tank and the bypass pipe respectively become the conductive extension portions of the two water level electrodes, and the sensing failure is not caused by the scaling, thereby effectively suppressing the monitoring failure caused by the scaling, and ensuring the long-term stable operation of the water heater. Convenient for the user. BRIEF DESCRIPTION OF THE DRAWINGS The invention will be further described below in conjunction with the drawings.
图 1为本发明实施例一的结构示意图。  FIG. 1 is a schematic structural view of Embodiment 1 of the present invention.
图 2为本发明实施例二的结构示意图。  2 is a schematic structural view of a second embodiment of the present invention.
图 3为本发明实施例三——实际应用之一的结构示意图。  FIG. 3 is a schematic structural diagram of one embodiment of the present invention, which is one of practical applications.
图 4为本发明实施例四——实际应用之二的结构示意图。  FIG. 4 is a schematic structural diagram of Embodiment 4 of the present invention, which is actually applied.
图中 1一太阳能集热器， 2—进水管， 4一电磁阀， 5—换热回流管， 6— 换热上行管， 7—第一水位电极， 8—第一绝缘接头， 9一第二水位电极， In the figure, 1 solar collector, 2 - inlet pipe, 4 solenoid valve, 5 - heat exchange return pipe, 6 - heat exchange riser, 7 - first water level electrode, 8 - first insulation joint, 9 one Two water level electrode,
10—第二绝缘接头， 11一回水管， 12—膨胀散热补液装置， 13—换热腔，10—Second insulation joint, 11 one return pipe, 12—expansion heat sinking device, 13—heat exchange chamber,
14一水箱， 15—旁通管。 具体实施方式 实施例一 14 a water tank, 15 - bypass pipe. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
本实施例的抗垢型水位传感装置基本结构如图 1所示， 包括水箱 14和 第一和第二两个水位电极 7、 9， 水箱 14设有旁通管 15， 第一电极 7与水箱 14直接电连接 （也可以通过其它导电介质间接电连接） ， 且与第二水位电 极 9在绝缘接头 8的作用下相互绝缘。 第二水位电极 9也在绝缘接头 8的作 用下与水箱 14绝缘， 且与旁通管 15相对水箱 14预定水位等高位置 A电连 接。 The basic structure of the anti-scale water level sensing device of this embodiment is as shown in FIG. 1 , including a water tank 14 and first and second two water level electrodes 7 and 9, and the water tank 14 is provided with a bypass pipe 15 , and the first electrode 7 and The water tanks 14 are directly electrically connected (may also be indirectly electrically connected by other conductive media) and are insulated from each other by the second water level electrode 9 under the action of the insulating joint 8. The second water level electrode 9 is also insulated from the water tank 14 by the insulating joint 8, and is electrically connected to the bypass pipe 15 at a predetermined water level A of the water tank 14. Pick up.
工作时， 当水箱中的水位达到预定水位 A时， 在旁通管的连通作用 下， 与之电连接的第二水位电极将与电连接于水箱的第一电极在水的作用下 导通， 从而发出高水位信号； 而当水箱中的水位低于预定水位 A时， 与旁 通管电连接的第二水位电极将与电连接于水箱的第一水位电极因无导通介质 而不导通， 从而发出相应的低水位信号； 进而由控制电路控制停止补水或启 动补水。 由于本实施例的水箱和旁通管分别成为两水位电极的导电扩展部 分， 不容易完全被结垢覆盖， 因此水箱或旁通管表面结垢， 也不会导致水位 监测失效。  During operation, when the water level in the water tank reaches the predetermined water level A, under the communication of the bypass pipe, the second water level electrode electrically connected thereto is electrically connected to the first electrode electrically connected to the water tank under the action of water. Thereby emitting a high water level signal; and when the water level in the water tank is lower than the predetermined water level A, the second water level electrode electrically connected to the bypass pipe and the first water level electrode electrically connected to the water tank are not electrically connected due to the non-conducting medium , thereby issuing a corresponding low water level signal; and then controlling the circuit to stop hydration or start hydration. Since the water tank and the bypass pipe of the present embodiment respectively become the conductive extension portions of the two water level electrodes, it is not easy to be completely covered by the scale, so that the surface of the water tank or the bypass pipe is fouled, and the water level monitoring failure is not caused.
实施例二 Embodiment 2
本实施例的抗垢型水位传感装置基本结构如图 2所示， 与实施例一不同 的是， 旁通管 15分成多段 （至少分为两段） ， 各段之间分别通过绝缘接头 8、 8，、 8"相互绝缘连接， 且各段分别与一个水位电极 9、 9，、 9"、 电连接。 这样， 可以在水位上升时发出相应的阶段性水位探测信号， 从而更好地监测 水位， 以实现相应的控制。  The basic structure of the anti-scale water level sensing device of the present embodiment is as shown in FIG. 2. Different from the first embodiment, the bypass pipe 15 is divided into a plurality of sections (at least divided into two sections), and each section passes through an insulating joint 8 respectively. 8, 8, 8" are insulated from each other, and each segment is electrically connected to a water level electrode 9, 9, 9". In this way, a corresponding periodic water level detection signal can be issued when the water level rises, so that the water level can be better monitored to achieve corresponding control.
实施例三 Embodiment 3
本发明一个优选的实际应用为一种采用抗垢型水位传感装置的太阳能热 水器， 如图 3所示， 该太阳能热水器的基本结构与现有技术类同， 可以参见 申请号为 CN200820214583.8 以及申请号为 CN200920036323.0的中国专利 申请文件。  A preferred practical application of the present invention is a solar water heater using an anti-scaling water level sensing device. As shown in FIG. 3, the basic structure of the solar water heater is similar to the prior art, and can be found in Application No. CN200820214583.8 and Chinese patent application file with application number CN200920036323.0.
其水箱由水箱主体 14和其一端的换热腔 13构成， 该换热腔通过位于水 箱一侧连通换热上行管 6连通的旁路管 15以及换热回流管 5， 与位于水箱 主体 14下方的集热器 1构成换热循环。 水箱主体 14的上方具有通过回水管 11与换热腔 13连通的膨胀散热补液装置 12， 该补液装置的下表面与水箱顶 部形状吻合。 水箱主体 14的进水管 2通过电磁阀 4与换热回流管 5连通。 此外， 该热水器具有第一和第二两个水位电极 7、 9， 第一水位电极 7通过 换热回流管 5与水箱 14间接电连接， 且与第二水位电极 9在第一绝缘接头 8的隔离作用下彼此绝缘， 第二水位电极 9在第一绝缘接头 8的隔离作用下 还与水箱 14绝缘， 且与旁通管相对水箱 14预定水位等高位置电连接。 前述 旁通管由与换热腔 13连通的旁路管 15以及与旁路管 15连通的换热上行管 6的上行段构成。 换热上行管 6的上行段与膨胀散热补液装置 12连通， 但 两者之间在第二绝缘接头 10的作用下相互绝缘。 The water tank is composed of a water tank main body 14 and a heat exchange chamber 13 at one end thereof, and the heat exchange chamber is located below the water tank main body 14 through a bypass pipe 15 and a heat exchange return pipe 5 which are connected to the heat exchange upstream pipe 6 on the water tank side. The collector 1 constitutes a heat exchange cycle. Above the water tank main body 14, there is an expansion heat dissipation liquid refilling device 12 that communicates with the heat exchange chamber 13 through the return pipe 11, and the lower surface of the liquid refilling device conforms to the shape of the top of the water tank. The water inlet pipe 2 of the water tank main body 14 communicates with the heat exchange return pipe 5 through the electromagnetic valve 4. In addition, the water heater has first and second two water level electrodes 7, 9, and the first water level electrode 7 passes The heat exchange return pipe 5 is indirectly electrically connected to the water tank 14 and insulated from the second water level electrode 9 under the isolation of the first insulating joint 8, and the second water level electrode 9 is also insulated from the water tank under the isolation of the first insulating joint 8. 14 is insulated and electrically connected to the bypass pipe at a predetermined height position relative to the water tank 14 of the water tank. The bypass pipe is constituted by an upstream pipe of the bypass pipe 15 communicating with the heat exchange chamber 13 and the heat exchange upstream pipe 6 communicating with the bypass pipe 15. The upstream section of the heat exchange riser 6 communicates with the expansion heat sinking refilling device 12, but is insulated from each other by the second insulating joint 10.
第一和第二水位电极 7、 9通过控制电路 （图中未示） 接电磁阀 4的受 控端。 因此， 当液位低于第一绝缘接头 8上边缘时， 第一和第二水位电极之 间断路， 表明系统处于缺水状态， 控制电路控制电磁阀 4处于开启状态； 水 流由进水管 2通过电磁阀 4、 换热回流管路 5、 进入换热腔 13进行补液。 当 液位高于第一绝缘接头 8上边缘时， 第一和第二水位电极之间导通， 表明系 统不缺水， 控制电路控制电磁阀处于关闭状态， 停止补液。  The first and second water level electrodes 7, 9 are connected to the controlled end of the solenoid valve 4 via a control circuit (not shown). Therefore, when the liquid level is lower than the upper edge of the first insulating joint 8, the first and second water level electrodes are disconnected, indicating that the system is in a water shortage state, and the control circuit controls the electromagnetic valve 4 to be in an open state; the water flow is passed by the water inlet pipe 2 The solenoid valve 4, the heat exchange return line 5, and the heat exchange chamber 13 are used for rehydration. When the liquid level is higher than the upper edge of the first insulating joint 8, the first and second water level electrodes are electrically connected, indicating that the system is not deficient in water, and the control circuit controls the solenoid valve to be in a closed state to stop rehydration.
实践证明， 由于第一和第二水位电极分别与金属材质的旁通管以及水箱 主体处于电连接状态， 相当于延展了水位电极本身的表面积， 因此使得由于 结垢而导致失效的几率大大降低， 并且由于合理利用现有管路充当液位传感 的构成部分， 因此成本优势非常明显。  Practice has proved that since the first and second water level electrodes are electrically connected to the metal material bypass pipe and the water tank main body, respectively, the surface area of the water level electrode itself is extended, so that the probability of failure due to fouling is greatly reduced. And because the existing pipeline is used as a component of the liquid level sensing, the cost advantage is very obvious.
实际上， 本实施例中采用的抗垢型水位传感装置包括至少两个水位电 极， 至少一个水位电极与水箱直接或间接电连接且与另一水位电极绝缘， 另 一水位电极与水箱绝缘且与旁通管相对水箱预定水位等高位置电连接； 旁通 管至少分为两段， 各段之间相互绝缘连接， 且各段分别与一个水位电极电连 接。 旁通管可以至少为两个， 各旁通管分别与所述水箱绝缘， 且各旁通管分 别与一个水位电极电连接。  In fact, the anti-scale water level sensing device used in the embodiment includes at least two water level electrodes, and at least one water level electrode is directly or indirectly electrically connected to the water tank and insulated from the other water level electrode, and the other water level electrode is insulated from the water tank. The bypass pipe is electrically connected to a predetermined position of the water tank at a predetermined water level; the bypass pipe is at least divided into two sections, and the segments are insulated from each other, and each segment is electrically connected to one water level electrode. The bypass pipes may be at least two, and each of the bypass pipes is insulated from the water tank, and each of the bypass pipes is electrically connected to one water level electrode.
实施例四 Embodiment 4
本实施例为本发明另一个优选的实际应用， 如图 4所示， 该太阳能热水 器的包括水箱 14、 太阳能集热器 1、 绝缘连接管路、 两个用于测量水箱水位 的水位电极 7、 9。 太阳能集热器 1与水箱 14连通， 绝缘连接管路也与水箱 14连通， 第一水位电极 7与水箱 14直接 （或间接） 电连接且与第二水位电 极 9在绝缘接头 8的隔离下绝缘， 第二水位电极 9与绝缘连接管路相对水箱 预定水位等高位置电连接。 绝缘连接管路为金属管， 通过绝缘接头 8与水箱 14连通。 此外， 还包括电动水阀 M和作为供水端的进水管 2， 该供水端经 电动水阀 M与水箱 14连通， 水位电极通过控制电路与电动水阀 M受控端 连接。 在实施例三的基础上， 本实施例的结构及有益效果不难理解， 在此不 另赘述。 This embodiment is another preferred practical application of the present invention. As shown in FIG. 4, the solar water heater includes a water tank 14, a solar collector 1, an insulated connecting pipeline, and two water level electrodes 7 for measuring the water level of the water tank. 9. The solar collector 1 is in communication with the water tank 14, and the insulated connecting pipe is also connected to the water tank. 14 connected, the first water level electrode 7 is directly (or indirectly) electrically connected to the water tank 14 and insulated from the second water level electrode 9 under the insulation of the insulating joint 8, and the second water level electrode 9 and the insulated connecting line are equal to the predetermined water level of the water tank. The position is electrically connected. The insulated connecting pipe is a metal pipe which communicates with the water tank 14 through the insulating joint 8. In addition, the electric water valve M and the water inlet pipe 2 as a water supply end are connected, and the water supply end is connected to the water tank 14 via the electric water valve M, and the water level electrode is connected to the controlled end of the electric water valve M through a control circuit. On the basis of the third embodiment, the structure and the beneficial effects of the embodiment are not difficult to understand, and are not further described herein.
除上述实施例外， 本发明还可以有其他实施方式。 例如： 还可以包括与 水箱连通的导通连接管路， 至少一个水位电极通过导通连接管路与水箱电连 接； 又如： 绝缘连接管路至少分为两段， 各段之间相互绝缘连接， 且各段分 别与一个水位电极电连接： 再如： 绝缘连接管路至少为两个， 各绝缘连接管 路分别与水箱绝缘， 且各绝缘连接管路分别与一个水位电极电连接； 又再 如： 旁通管可以为多个 （至少为两个） ， 各旁通管分别与水箱绝缘， 且各旁 通管分别与一个水位电极电连接。 凡采用等同替换或等效变换形成的技术方 案， 均落在本发明要求的保护范围。  Other than the above-described embodiments, the present invention may have other embodiments. For example, it may further include a conductive connection line communicating with the water tank, and at least one water level electrode is electrically connected to the water tank through the conduction connection line; for example: the insulation connection line is divided into at least two sections, and the sections are insulated from each other And each segment is electrically connected to a water level electrode: for example: at least two insulated connecting pipes, each insulated connecting pipe is insulated from the water tank, and each insulating connecting pipe is electrically connected to a water level electrode; For example, the bypass pipe may be a plurality of (at least two), each of the bypass pipes is insulated from the water tank, and each of the bypass pipes is electrically connected to one water level electrode. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the present invention.

Claims

权利要求书 Claim
1. 一种抗垢型水位传感装置， 包括水箱和至少两个水位电极， 所述水 箱设有旁通管， 其特征在于： 至少一个所述水位电极与所述水箱直接或间接 电连接且与另一水位电极绝缘， 所述另一水位电极与所述旁通管相对所述水 箱预定水位等高位置电连接。 An anti-scale water level sensing device comprising a water tank and at least two water level electrodes, wherein the water tank is provided with a bypass tube, wherein: at least one of the water level electrodes is electrically connected directly or indirectly to the water tank Insulated with another water level electrode, the other water level electrode is electrically connected to the bypass tube at a position equal to a predetermined water level of the water tank.
2.根据权利要求 1所述的抗垢型水位传感装置， 其特征在于： 所述旁通 管至少分为两段， 各段之间相互绝缘连接， 且各段分别与一个水位电极电连 接。  The anti-scale water level sensing device according to claim 1, wherein: the bypass pipe is at least divided into two sections, and each section is insulated from each other, and each section is electrically connected to a water level electrode. .
3.根据权利要求 1所述的抗垢型水位传感装置， 其特征在于： 所述旁通 管至少为两个， 各旁通管分别与所述水箱绝缘， 且各旁通管分别与一个水位 电极电连接。  The anti-scale water level sensing device according to claim 1, wherein: the bypass pipes are at least two, each of the bypass pipes is insulated from the water tank, and each of the bypass pipes is respectively The water level electrode is electrically connected.
4.一种采用抗垢型水位传感装置的太阳能热水器， 包括水箱、 太阳能集 热器、 绝缘连接管路、 至少两个用于测量水箱水位的水位电极， 所述太阳能 集热器与所述水箱连通， 其特征在于： 所述绝缘连接管路与所述水箱连通， 至少一个所述水位电极与所述水箱直接或间接电连接且与另一水位电极绝 缘， 所述另一水位电极与所述绝缘连接管路相对所述水箱预定水位等高位置 电连接。  4. A solar water heater using an anti-scaling water level sensing device, comprising a water tank, a solar collector, an insulated connecting line, at least two water level electrodes for measuring a water level of the water tank, the solar collector and the The water tank is connected, wherein: the insulated connecting pipeline is in communication with the water tank, and at least one of the water level electrodes is directly or indirectly electrically connected to the water tank and insulated from another water level electrode, and the other water level electrode and the water level electrode The insulated connecting line is electrically connected to a predetermined position of the water tank at a predetermined water level.
5.根据权利要求 4所述的采用抗垢型水位传感装置的太阳能热水器， 其 特征在于： 所述绝缘连接管路为金属管， 并通过绝缘接头与所述水箱连通。  The solar water heater using the anti-scaling water level sensing device according to claim 4, wherein: the insulating connecting pipe is a metal pipe and communicates with the water tank through an insulating joint.
6.根据权利要求 4所述的采用抗垢型水位传感装置的太阳能热水器， 其 特征在于： 还包括与水箱连通的导通连接管路， 至少一个所述水位电极通过 导通连接管路与所述水箱电连接。  The solar water heater using the anti-scale water level sensing device according to claim 4, further comprising: a conductive connection line communicating with the water tank, wherein at least one of the water level electrodes passes through the conductive connection line The water tank is electrically connected.
7.根据权利要求 4所述的采用抗垢型水位传感装置的太阳能热水器， 其 特征在于： 还包括电动水阀和供水端， 所述供水端经电动水阀与水箱连通； 所述水位电极通过控制电路与所述电动水阀受控端连接。 The solar water heater using the anti-scaling water level sensing device according to claim 4, further comprising: an electric water valve and a water supply end, wherein the water supply end is connected to the water tank via the electric water valve; The control circuit is connected to the controlled end of the electric water valve.
8.根据权利要求 4所述的采用抗垢型水位传感装置的太阳能热水器， 其 特征在于： 所述绝缘连接管路至少分为两段， 各段之间相互绝缘连接， 且各 段分别与一个水位电极电连接。 The solar water heater using the anti-scaling water level sensing device according to claim 4, wherein: the insulating connecting pipe is divided into at least two segments, and the segments are insulated from each other, and each segment is respectively A water level electrode is electrically connected.
9.根据权利要求 4所述的采用抗垢型水位传感装置的太阳能热水器， 其 特征在于： 所述绝缘连接管路至少为两个， 各绝缘连接管路分别与所述水箱 绝缘， 且各绝缘连接管路分别与一个水位电极电连接。  The solar water heater using the anti-scaling water level sensing device according to claim 4, wherein: the insulating connecting pipeline is at least two, and each insulating connecting pipeline is insulated from the water tank, and each The insulated connecting lines are electrically connected to a water level electrode, respectively.
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