WO2021062935A1 - 一种净水机 - Google Patents

一种净水机 Download PDF

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Publication number
WO2021062935A1
WO2021062935A1 PCT/CN2019/121488 CN2019121488W WO2021062935A1 WO 2021062935 A1 WO2021062935 A1 WO 2021062935A1 CN 2019121488 W CN2019121488 W CN 2019121488W WO 2021062935 A1 WO2021062935 A1 WO 2021062935A1
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WIPO (PCT)
Prior art keywords
water
filter module
pipeline
stage filter
stage
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PCT/CN2019/121488
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English (en)
French (fr)
Inventor
刘红星
邓愿
王鑫
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宁波方太厨具有限公司
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Publication of WO2021062935A1 publication Critical patent/WO2021062935A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis

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  • the present invention relates to the technical field of water purifiers, in particular to a water purifier.
  • the water purifier obtains purified water by filtering the raw water.
  • Chinese patent CN206278992U discloses a five-stage snap-on direct drinking water purifier.
  • the drinking fountain includes a housing and a filter assembly.
  • the filter assembly includes a first-stage PP cotton filter element and a second Grade CTO rod-shaped activated carbon filter element, third-level CTO rod-shaped activated carbon filter element, fourth-level hydrophilic mold filter element, fifth-level decolorization and deodorization processor.
  • the five-stage card-connected direct drinking water purifier can perform five-stage filtration on incoming tap water, so that the effluent of the five-stage card-connected direct drinking water purifier is purified into direct drinking water.
  • the filter component in the patent cannot filter the heavy metal ions in a targeted manner, making it impossible to determine whether the heavy metal ions in the effluent of the five-stage card-connected direct drinking water purifier are effectively filtered, and the quality of the effluent cannot be guaranteed.
  • there is also a filter element specifically for filtering heavy metal ions but when the heavy metal ions are filtered, the beneficial minerals in the water are also filtered out at the same time, resulting in excessive filtering.
  • the water purifier will also perform water leakage detection.
  • the prior art only the total dissolved solids value obtained by the detection of the leak location is compared with a fixed total dissolved solids threshold value, the different water quality itself will directly affect the detected total dissolved solids value, making the The result of water leakage detection has a great influence and is easy to alarm by mistake.
  • the first technical problem to be solved by the present invention is to provide a water purifier that can effectively remove heavy metal ions and retain beneficial minerals in view of the above-mentioned prior art.
  • the second technical problem to be solved by the present invention is to provide a water purifier that can eliminate the influence of different water quality on the result of water leakage detection, thereby avoiding false alarms for water leakage.
  • the technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a water purifier comprising a water purifier and a faucet connected by a water purifier pipeline, and the raw water flows out of the faucet after being filtered by the water purifier; wherein
  • the water purification device includes several filter modules connected by a water purification pipeline, and is characterized in that at least one filter module adopts membrane chromatography for filtering heavy metal ions.
  • the water purification device can adopt a variety of structures.
  • the water purification device includes a first-stage filtration module for filtering large particulate matter and a second-stage filtration module for filtering small molecular substances that are sequentially arranged on the water purification pipeline.
  • Module a third-stage filtration module for filtering heavy metal ions and a fourth-stage filtration module for improving the taste of water purification; wherein the third-stage filtration module adopts the membrane chromatography.
  • the filter module can have various structures.
  • the first-stage filter module adopts PP cotton filter element or/and activated carbon filter element
  • the second-stage filter module adopts nanofiltration filter element
  • the fourth-stage filter module adopts activated carbon filter element.
  • the water purifier further includes a water inlet solenoid valve and a pump arranged between the first-stage filter module and the second-stage filter module, and the water inlet solenoid valve is arranged in the water purification pipe close to the first-stage filter module.
  • the pump is arranged on the water purification pipeline close to the second-stage filter module.
  • the water inlet solenoid valve can open or close the water purification pipeline, and the pump can increase the power of the water flow.
  • the water purification device can have a variety of structures.
  • the water purification device includes a first-stage filter module for filtering large particulate matter and a second-stage filter module for filtering small molecular substances, which are arranged on the water purification pipeline.
  • the second-stage filter module and the third-stage filter module are connected in parallel on the water purification pipeline.
  • the water outlet of the first-stage filter module is connected to the water inlet of the second-stage filter module and the water-inlet of the third-stage filter module respectively.
  • Both the water outlet of the secondary filter module and the water outlet of the third filter module are connected to the water inlet of the fourth filter module;
  • the fourth-stage filtration module at least partially adopts the membrane chromatography.
  • the filter module can have a variety of structures.
  • the first-stage filter module adopts PP cotton filter element or/and activated carbon filter element
  • the second-stage filter module and the third-stage filter module both adopt nanofiltration filter element
  • the fourth-stage filter module Adopt a combined filter element of membrane chromatography and activated carbon.
  • the water purifier further includes a water inlet solenoid valve and a pump arranged between the first-stage filter module and the second-stage filter module, and the water inlet solenoid valve is arranged in the water purification pipe close to the first-stage filter module.
  • the pump is arranged on the water purification pipeline close to the second-stage filter module.
  • the water inlet solenoid valve can open or close the water purification pipeline, and the pump can increase the power of the water flow.
  • the filter module corresponding to the nanofiltration filter element is connected with a waste water pipeline for discharging filtered waste water generated during the filtration of the water purification device, and a waste water solenoid valve is provided on the waste water pipeline.
  • the outlet end of the water device is also connected with a flushing pipeline for discharging the flushing water when the water purifier is flushed.
  • the flushing pipeline is connected to the waste water pipeline.
  • a flushing solenoid valve is provided on the flushing pipeline. The end is located downstream of the waste water solenoid valve.
  • the flushing pipeline is connected with the wastewater pipeline, and the flushing water is discharged through the outlet end of the wastewater pipeline. Compared with the structure that the wastewater pipeline does not communicate with the flushing pipeline, the present invention can reduce one outlet.
  • a needle valve connected in parallel with the wastewater solenoid valve and used to adjust the wastewater ratio is provided on the wastewater pipeline;
  • a flush check valve is provided on the flushing pipeline and downstream of the flushing solenoid valve;
  • the waste water pipeline is provided with a waste water check valve downstream of the waste water solenoid valve and the flush check valve.
  • the needle valve can differentially adjust the waste water ratio according to the needs of the local water quality.
  • the flushing check valve makes the flushing water flow only from the upstream of the flushing pipeline to the downstream of the flushing pipeline, and the wastewater check valve makes the wastewater only flow from the wastewater pipeline.
  • the upstream flows to the downstream of the wastewater pipeline.
  • the water purifier further includes a control board and a first TDS sensor and a second TDS sensor electrically connected to the control board.
  • the second TDS sensor is arranged at the water leakage position to be detected and located outside the water purification pipeline.
  • water leakage detection can be performed at the same time.
  • the TDS sensor is mainly used to determine the total amount of dissolved solids in water, and the total amount of dissolved solids in the water varies greatly in different regions.
  • the ratio C is used to judge, which eliminates the influence of different water quality on the water leakage detection result, makes the water leakage detection result more accurate, and is suitable for use in areas with different water quality, making the clean The scope of application of the water machine is wider.
  • the present invention has the advantage that membrane chromatography for filtering heavy metal ions is adopted through at least one filter module.
  • the membrane chromatography can remove heavy metal ions without removing other beneficial mineral elements, which makes the water beneficial to the human body.
  • the minerals are retained, and the water quality of the purified water obtained by the water purification mechanism is improved.
  • Fig. 1 is a schematic diagram of the water purifier of embodiment 1 of the present invention when it is producing water normally;
  • Embodiment 2 is a schematic diagram of the water purifier according to Embodiment 1 of the present invention in the discharge of waste water and washing of the nanofiltration filter element;
  • Fig. 3 is a schematic diagram of the water purifier in embodiment 1 of the present invention when the entire pipeline is flushed;
  • Fig. 4 is a schematic diagram of the water purifier of embodiment 2 of the present invention in normal water production
  • FIG. 5 is a schematic diagram of the water purifier according to Embodiment 2 of the present invention during waste water discharge and washing of the nanofiltration filter element;
  • Fig. 6 is a schematic diagram of the water purifier of Embodiment 2 of the present invention when the entire pipeline is flushed.
  • the water purifier includes main components such as a water purifier, a water purifying pipeline 100, a waste water pipeline 300, a flushing pipeline 200, an ultraviolet germicidal lamp 5, and a faucet 6.
  • the water purification device includes a first-stage filter module 1, a second-stage filter module 2, a third-stage filter module 3, and a fourth-stage filter module 4 that are sequentially connected by a water-purifying pipeline 100.
  • the first-stage filter module 1 is used to filter large particles such as silt and rust in the raw water, and a combined filter element of PP cotton and activated carbon can be used.
  • the second-stage filtration module 2 is used to filter small molecular substances such as viruses and bacteria, and a 600G nanofiltration filter element can be used.
  • the third-stage filter module 3 is used to filter heavy metal ions and retain beneficial calcium and magnesium mineral ions.
  • Membrane chromatography can be used.
  • the fourth-stage filter module 4 is used to improve the taste of water purification, and an activated carbon filter element can be used.
  • a water inlet solenoid valve 101 and a pump 102 are arranged between the first-stage filter module 1 and the second-stage filter module 2.
  • the water inlet solenoid valve 101 is arranged on the water purification pipeline 100 close to the first-stage filter module 1, and the pump 102 It is arranged on the water purification pipeline 100 close to the second stage filter module 2.
  • the ultraviolet germicidal lamp 5 is arranged between the fourth-stage filter module 4 and the faucet 6, and is used to kill bacteria and viruses.
  • the faucet 6 is connected to the outlet end of the water purification pipeline 100, and the raw water flows out of the faucet 6 after being filtered by the water purification device.
  • the waste water pipeline 300 is connected to the second-stage filter module 2 and used to discharge the filtered waste water generated during the filtration of the water purifier.
  • the waste water pipeline 300 is provided with a waste water solenoid valve 301, a needle valve 302, and a waste water check valve 303, needle valves 302 is connected in parallel with the waste water solenoid valve 301 and used to adjust the waste water ratio.
  • the waste water check valve 303 is located downstream of the waste water solenoid valve 301 and downstream of the flush check valve 202 described below.
  • the flushing pipeline 200 is arranged near the outlet end of the water purifier and is used to discharge the flushing water when the water purifier is flushed.
  • the flushing pipeline 200 is in communication with the waste water pipeline 300, and a flushing solenoid is provided on the flushing pipeline 200.
  • the valve 201 and the flushing check valve 202 located downstream of the flushing solenoid valve 201, and the water outlet end of the flushing pipeline 200 is located downstream of the wastewater solenoid valve 301.
  • the water purifier also includes a control board, a first TDS sensor 10 and a second TDS sensor 20 that are electrically connected to the control board, and the first TDS sensor 10 is provided In the water purification pipeline 200 and located downstream of the water purification device, the two detection probes of the first TDS sensor 10 are all immersed in the water of the purification water pipeline 200, and the second TDS sensor 20 is set in the water leakage to be detected It is located outside the water purification pipeline 100.
  • the working principle of the water purifier is as follows:
  • the normal water production process is: the faucet 6 is turned on, the signal is transmitted to the control board, the control board outputs the signal, and then turns on the water inlet solenoid valve 101, pump 102 and ultraviolet germicidal lamp 5, and closes the waste water solenoid valve 301 and flushes Solenoid valve 201, after the raw water passes through the first-stage filtration module 1 and the second-stage filtration module 2, part of the raw water is converted into concentrated water and discharged from the needle valve 302 (the needle valve 302 can adjust the corresponding waste water ratio by the local water quality), and the other part After the third-stage filter module 3, the fourth-stage filter module 4 and the ultraviolet germicidal lamp 5, it is discharged from the faucet 6.
  • the second-stage filter module 2 and the third-stage filter module 3 are connected in series, so that the water flow path is longer, Better filtering effect;
  • the waste water discharge and the flushing process of the nanofiltration filter element (the nanofiltration filter element corresponds to the second-stage filter module 2 in this embodiment) is: after the user finishes taking water, the faucet 6 is closed, and the signal is transmitted to the control panel to control
  • the board controls the waste water solenoid valve 301 to open, and controls the UV germicidal lamp 5 to turn off after a certain preset time.
  • the raw water passes through the first-stage filter module 1 and the second-stage filter module 2 to discharge the concentrated water impurities in the nanofiltration filter element to prevent Block the nanofiltration membrane; after a preset period of time, the pump 102 is closed, the water inlet solenoid valve 101 and the wastewater solenoid valve 301 are still open, the water in the pump 102 is emptied to reduce the pressure, and the pump 102 and filter element are prevented from being damaged.
  • the water inlet solenoid valve 101 and the waste water solenoid valve 301 are closed and enter the standby state; if the user needs to rinse the nanofiltration filter element, it can also transmit a signal to the control board to perform the above-mentioned rinse process; in this way, the control device
  • the nanofiltration filter element can be flushed according to user needs or according to the set procedure;
  • the whole pipeline flushing process is: in order to prevent the user from not using the water purifier for a long time, causing the water quality to deteriorate or the filter element to be blocked, the water purification system will perform a full pipeline flushing after a certain preset time has passed.
  • the control panel controls the water inlet solenoid valve 101 to open, the pump 102 to open, the flushing solenoid valve 201 to open, and the ultraviolet germicidal lamp 5 to close
  • the raw water sequentially passes through the first stage filtration module 1, the second stage filtration module 2, and the third stage filtration module 3
  • the fourth-stage filter module 4 and the ultraviolet germicidal lamp 5 are discharged from the flushing solenoid valve 201, and after a preset time, the flushing solenoid valve 201 is closed, and the waste water solenoid valve 301 is opened to discharge the concentrated water.
  • the pump 102 After a preset time, the pump 102 is closed, the pressure of the pump 102 is emptied, and after a certain preset time, the water inlet solenoid valve 101 and the waste water solenoid valve 301 are closed, and the standby state is returned;
  • water leakage detection can be performed at the same time.
  • the TDS sensor is mainly used to determine the total amount of dissolved solids in water, and the total amount of dissolved solids in the water varies greatly in different regions.
  • the ratio C is used to judge, which eliminates the influence of different water quality on the result of water leakage detection, makes the water leakage detection result more accurate, and is suitable for various areas with different water quality, making the water purifier The scope of application is wider.
  • the water purifier includes main components such as a water purifier, a water purifying pipeline 100, a waste water pipeline 300, a flushing pipeline 200, an ultraviolet germicidal lamp 5, and a faucet 6.
  • the water purification device includes a first-stage filter module 1a, a second-stage filter module 2a, a third-stage filter module 3a, and a fourth-stage filter module 4a connected by a water purification pipeline 100.
  • the first-stage filter module 1a is used to filter large particles such as silt and rust in the raw water, and a combined filter element of PP cotton and activated carbon can be used.
  • the second-stage filtration module 2a is used to filter small molecular substances such as viruses and bacteria, and a 400G nanofiltration filter element can be used.
  • the third-stage filtration module 3a is used to filter small molecular substances such as viruses and bacteria, and 400G nanofiltration cartridges can be used; the third-stage filtration module 3a and the second-stage filtration module 2a are connected in parallel, which is different from the second-stage filtration module 2 and the second-stage filtration module 2 in the embodiment.
  • the third-stage filter modules 3 are connected in series.
  • the water outlet of the first-stage filter module 1a is connected to the water inlet of the second-stage filter module 2a and the water-inlet of the third-stage filter module 3a respectively.
  • the water outlet end of the filter module 2a and the water outlet end of the third-stage filter module 3a are both connected to the water inlet end of the fourth-stage filter module 4a.
  • the fourth-stage filtration module 4a is used to filter heavy metal ions and to improve the taste of water purification.
  • the fourth-stage filtration module 4a may partially adopt membrane chromatography.
  • the fourth-stage filtration module 4a adopts a combined filter element of membrane chromatography and activated carbon.
  • a water inlet solenoid valve 101a and a pump 102a are arranged between the first-stage filter module 1a and the second-stage filter module 2a, and the water inlet solenoid valve 101a is arranged on the water purification pipeline 100 close to the first-stage filter module 1a.
  • the pump 102a is arranged on the water purification pipeline 100 close to the second-stage filter module 2a.
  • the ultraviolet germicidal lamp 5 is arranged between the fourth-stage filter module 4a and the faucet 6, and is used to kill bacteria and viruses.
  • the faucet 6 is connected to the outlet end of the water purification pipeline 100, and the raw water flows out of the faucet 6 after being filtered by the water purification device.
  • a flow sensor 30 for measuring the flow of water is arranged near the faucet 6, and the flow sensor 30 is electrically connected to the control board.
  • the inlet end of the wastewater pipeline 300 is respectively connected with the second-stage filtration module 2a and the third-stage filtration module 3a, and the wastewater pipeline 300 is used to filter wastewater after the second-stage filtration module 2a and the third-stage filtration module 3a are processed.
  • Discharge similarly, wastewater solenoid valve 301, needle valve 302, and wastewater check valve 303 are provided on wastewater pipeline 300. Needle valve 302 is connected in parallel with wastewater solenoid valve 301 and used to adjust the ratio of wastewater. Wastewater check valve 303 is located in the wastewater The downstream of the solenoid valve 301 and the downstream of the flush check valve 202 described below.
  • the flushing pipeline 200 is set close to the outlet end of the water purifying device for draining the flushing water when the water purifying device is flushed.
  • the flushing pipeline 200 is in communication with the waste water pipeline 300, and the flushing pipeline 200 is provided with The flushing solenoid valve 201 and the flushing check valve 202 located downstream of the flushing solenoid valve 201, the water outlet end of the flushing pipeline 200 is located downstream of the wastewater solenoid valve 301.
  • the water purifier further includes a control board, a first TDS sensor 10, a second TDS sensor 20, and a first TDS sensor 10 that are electrically connected to the control board.
  • the two detection probes of the first TDS sensor 10 are all immersed in the water of the water purification pipeline 200, and the second TDS sensor 20 is arranged in the water purification pipeline 200 and downstream of the water purification device.
  • the leaking location is located outside the water purification pipeline 100.
  • the normal water production process is: the faucet 6 is turned on, the signal is transmitted to the control panel of the control device, the control panel outputs the signal, and turns on the water inlet solenoid valve 101a, the pump 102a and the ultraviolet germicidal lamp 5 in turn, and closes the waste water solenoid valve 301 and flushing solenoid valve 201; after the raw water passes through the first-stage filter module 1a, it enters the second-stage filter module 2a and the third-stage filter module 3a, and part of it is converted into concentrated water and discharged through the needle valve 302 (the needle valve 302 can pass through the local Water quality is used to adjust the corresponding wastewater ratio), and the other part is discharged from the faucet 6 through the fourth-stage filter module 4a (combined filter element of membrane chromatography and activated carbon) and the ultraviolet germicidal lamp 5; the second-stage filter module 2a and the third stage The filter modules 3a are connected in parallel, so that the water flux is greater;
  • the waste water discharge and the flushing process of the nanofiltration filter element are: after the user finishes taking water, the faucet 6 is closed.
  • the signal is transmitted to the control board.
  • the control board controls the waste water solenoid valve 301 to open, and controls the UV germicidal lamp 5 to turn off after a certain preset time.
  • the raw water passes through the first-stage filtration module 1a, the second-stage filtration module 2a, and the third-stage filtration After module 3a, drain the concentrated water of the nanofiltration element in the second-stage filtration module 2a and the third-stage filtration module 3a to prevent the nanofiltration membrane from clogging; after a preset period of time, the pump 102a is closed and the water inlet solenoid valve 101a and the waste water solenoid valve 301 are still open, and the water in the pump 102a is emptied to reduce the pressure to prevent damage to the pump 102a and filter element; after a certain preset time, the water inlet solenoid valve 101a and the waste water solenoid valve 301 are closed and enter Standby state; if the user needs to rinse the nanofiltration filter element, it can also transmit a signal to the control panel for the above-mentioned rinse process; in this way, the control device can rinse the nanofiltration filter element according to the user's needs or according to the set program;
  • the whole pipeline flushing process is: in order to prevent the user from not using the water purifier for a long time, causing the water quality to deteriorate or the filter element to be blocked, the water purifier will perform a full pipeline flushing after a certain preset time has passed.
  • the control board controls the water inlet solenoid valve 101a to open, the pump 102a to open, the flushing solenoid valve 201 to open, and the ultraviolet germicidal lamp 5 to close, the raw water sequentially passes through the first-stage filter module 1a, the second-stage filter module 2a, and the third-stage filter module 3a.
  • the fourth-stage filter module 4a and the ultraviolet germicidal lamp 5 are discharged from the flushing solenoid valve 201; after a preset time, the flushing solenoid valve 201 is closed and the waste water solenoid valve 301 is opened to discharge the concentrated water; after the preset time has passed , The pump 102a is closed, and the pressure of the pump 102a is emptied; after a certain preset time, close the water inlet solenoid valve 101 and the waste water solenoid valve 301, and return to the standby state; in this way, the control device can control the entire pipe according to the set program Road for flushing;
  • the water leakage detection process of the water purifier is the same as in the first embodiment.

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  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
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Abstract

本发明公开了一种净水机，其包括通过净水管路(100)相连的净水装置和水龙头(6)，原水经所述净水装置过滤后从水龙头(6)流出净水；其中，净水装置包括通过净水管路(100)相连的若干个过滤模块，至少一个过滤模块采用用于过滤重金属离子的膜色谱。本发明的净水机通过至少一个过滤模块采用用于过滤重金属离子的膜色谱，膜色谱可以仅去除重金属离子而不去除其它有益矿物质元素，这样使得水中的有益矿物质得到保留。

Description

一种净水机 技术领域
本发明涉及净水设备的技术领域，尤其涉及一种净水机。
背景技术
净水机通过对原水进行过滤处理，得到净水。
例如中国专利CN206278992U(申请号为CN201621148924.7)公开了一种五级卡接式直饮净水机，该饮水机包括壳体、过滤组件，该过滤组件包括第一级PP棉滤芯、第二级CTO棒状活性炭滤芯、第三级CTO棒状活性炭滤芯、第四级亲水模滤芯、第五级脱色除味处理器。该五级卡接式直饮净水机能够对进入的自来水进行五级过滤，进而使得该五级卡接式直饮净水机的出水净化为直接饮用水。但该专利中的过滤组件无法针对性地对重金属离子进行过滤，使得无法确定该五级卡接式直饮净水机出水中的重金属离子是否得到有效的过滤，出水质量无法保证。另外现有技术中也有专门针对重金属离子进行过滤的滤芯，但是在过滤重金属离子的同时水中的有益矿物质也同时滤除，出现过度过滤的情况。
此外，净水机还会进行漏水检测。现有技术中，仅仅将漏水位置检测获取的溶解性固体总量值与固定的溶解性固体总量阈值进行比较，则不同水质本身则会直接影响到检测的溶解性固体总量值，使得对漏水检测的结果影响较大，容易误报警。
因此，上述净水机，还可继续优化。
发明内容
本发明所要解决的第一个技术问题是针对上述现有技术，提供一种能有效去除重金属离子而保留有益矿物质的净水机。
本发明所要解决的第二个技术问题是提供一种能消除不同水质对漏水检测结果的影响，进而避免漏水误报警的净水机。
本发明解决上述第一个技术问题所采用的技术方案为：一种净水机，包括通过净水管路相连的净水装置和水龙头，原水经净水装置过滤后从水龙头流出净水；其中，净水装置包括通过净水管路相连的若干个过滤模块，其特征在于：至少一个过滤模块采用用于过滤重金属离子的膜色谱。
净水装置可以采用多种结构，优选地，所述净水装置包括依次设置在净水管路上的用于过滤大颗粒物质的第一级过滤模块、用于过滤小分子物质的第二级过滤模块，用于 过滤重金属离子的第三级过滤模块和用于改善净水口感的第四级过滤模块；其中第三级过滤模块采用所述的膜色谱。通过设置总共四级过滤模块，有利于输出符合需求的净水；通过第二过滤模块和第三级过滤模块串联，水流流动的路径较长，过滤效果较好。
过滤模块可以有多种结构，优选地，所述第一级过滤模块采用PP棉滤芯或/和活性炭滤芯，第二级过滤模块采用纳滤滤芯，第四级过滤模块采用活性炭滤芯。
作为改进，所述净水机还包括设置在第一级过滤模块和第二级过滤模块之间的进水电磁阀和泵，所述进水电磁阀靠近第一级过滤模块设置在净水管路上，所述泵靠近第二级过滤模块设置在净水管路上。进水电磁阀能打开或关闭净水管路，泵能提高水流流动的动力。
净水装置可以有多种结构，优选地，所述净水装置包括设置在净水管路上的用于过滤大颗粒物质的第一级过滤模块、用于过滤小分子物质的第二级过滤模块，用于过滤小分子物质的第三级过滤模块、用于过滤重金属离子和用于改善净水口感的第四级过滤模块；
第二级过滤模块和第三级过滤模块并联连接在净水管路上，第一级过滤模块的出水端分别连通第二级过滤模块的进水端和第三级过滤模块的进水端，第二级过滤模块的出水端和第三级过滤模块的出水端均连通第四级过滤模块的进水端；
第四级过滤模块至少部分采用所述的膜色谱。
通过设置总共四级过滤模块，有利于输出符合需求的净水；通过第二级过滤模块和第三级过滤模块并联，水通量较大。
过滤模块可以有多种结构，优选地，所述第一级过滤模块采用PP棉滤芯或/和活性炭滤芯，第二级过滤模块和第三级过滤模块均采用纳滤滤芯，第四级过滤模块采用膜色谱和活性炭的组合滤芯。
作为改进，所述净水机还包括设置在第一级过滤模块和第二级过滤模块之间的进水电磁阀和泵，所述进水电磁阀靠近第一级过滤模块设置在净水管路上，所述泵靠近第二级过滤模块设置在净水管路上。同样地，进水电磁阀能打开或关闭净水管路，泵能提高水流流动的动力。
为了便于净水装置产生的废水排出，所述纳滤滤芯对应的过滤模块上连接有用于净水装置过滤时产生的过滤废水排出的废水管路，废水管路上设置有废水电磁阀，所述净水装置的出口端还连接有用于净水装置被冲洗时的冲洗水排出的冲洗管路，该冲洗管路与废水管路连通，该冲洗管路上设置有冲洗电磁阀，该冲洗管路的出水端位于废水电磁阀的下游。通过冲洗管路与废水管路相连，冲洗水通过废水管路的出水端排出，相比废水管路没有与冲洗管路连通的结构，本发明可以减少一个出口。
作为改进，所述废水管路上设置有与废水电磁阀并联且用于调节废水比的针阀；
或/和，所述冲洗管路上且位于冲洗电磁阀的下游设置有冲洗逆止阀；
或/和，所述废水管路上设置有位于废水电磁阀和冲洗逆止阀下游的废水逆止阀。
针阀能根据需要当地水质进行差异化调节废水比，冲洗逆止阀使得冲洗水流只能从冲洗管路的上游流至冲洗管路的下游，废水逆止阀使得废水只能从废水管路的上游流至废水管路的下游。
为进一步解决本发明的第二个技术问题，优选地，所述净水机还包括控制板以及与控制板分别进行电连接的第一TDS传感器、第二TDS传感器，第一TDS传感器设置在净水管路内且位于净水装置的下游，第二TDS传感器设置在待检测的漏水位置且位于净水管路外。在净水机的工作过程中，同时可以进行漏水检测，第二TDS传感器的检测数据A与第一TDS传感器的检测数据B传送至控制板中进行比较计算，进而获取比值C＝A/B，然后将比值C与漏水阈值C0进行比较，进而判断净水机的漏水情况。TDS传感器主要用于测定水中的溶解性固体总量，而不同地区的水质，其水中的溶解性固体总量差异较大。而本实施例的漏水检测计算过程中，通过比值C进行判断，消除了水质不同对漏水检测的结果影响，使得漏水检测结果更加准确，且适用于各种不同水质的地区进行使用，使得该净水机的适用范围更广。
与现有技术相比，本发明的优点在于：通过至少一个过滤模块采用用于过滤重金属离子的膜色谱，膜色谱可以去除重金属离子而不去除其它有益矿物质元素，这样使得水中对人体有益的矿物质得到保留，提高净水机制得的净水的水质。
附图说明
图1为本发明实施例1的净水机在正常制水时的示意图；
图2为本发明实施例1的净水机在废水排出和对纳滤滤芯进行冲洗的示意图；
图3为本发明实施例1的净水机在全管路冲洗时的示意图；
图4为本发明实施例2的净水机在正常制水时的示意图；
图5为本发明实施例2的净水机在废水排出和对纳滤滤芯进行冲洗的示意图；
图6为本发明实施例2的净水机在全管路冲洗时的示意图。
具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
实施例一
如图1～图3所示，为本发明净水机的第一个优选实施例。该净水机包括净水装置、净水管路100、废水管路300、冲洗管路200、紫外杀菌灯5和水龙头6等主要部件。
净水装置包括通过净水管路100依次相连的第一级过滤模块1、第二级过滤模块2、第三级过滤模块3和第四级过滤模块4。
其中，第一级过滤模块1用于过滤原水中的泥沙、铁锈等大颗粒物，可以采用PP棉和活性炭的组合滤芯。
第二级过滤模块2用于过滤病毒细菌等小分子物质，可以采用600G纳滤滤芯。
第三级过滤模块3用于过滤重金属离子，保留有益钙镁矿物质离子，可以采用膜色谱。
第四级过滤模块4用于改善净水口感，可以采用活性炭滤芯。
在第一级过滤模块1和第二级过滤模块2之间设置有进水电磁阀101和泵102，进水电磁阀101靠近第一级过滤模块1设置在净水管路100上，泵102靠近第二级过滤模块2设置在净水管路100上。
紫外杀菌灯5设置在第四级过滤模块4和水龙头6之间，用于将细菌病毒杀灭。
水龙头6与净水管路100的出口端相连，原水经净水装置过滤后从水龙头6流出净水。
废水管路300与第二级过滤模块2相连且用于净水装置过滤时产生的过滤废水排出，废水管路300上设置有废水电磁阀301、针阀302和废水逆止阀303，针阀302与废水电磁阀301并联且用于调节废水比，废水逆止阀303位于废水电磁阀301的下游和下述的冲洗逆止阀202的下游。
冲洗管路200设置在靠近净水装置的出口端，用于净水装置被冲洗时的冲洗水排出的，该冲洗管路200与废水管路300连通，该冲洗管路200上设置有冲洗电磁阀201和位于冲洗电磁阀201的下游的冲洗逆止阀202，该冲洗管路200的出水端位于上述废水电磁阀301的下游。
另外，该净水机为了实现对漏水情况的准确检测，该净水机还包括控制板、与控制板分别进行电连接的第一TDS传感器10、第二TDS传感器20，第一TDS传感器10设置在净水管路200内且位于净水装置的下游，如此第一TDS传感器10的两个检测探针则全部浸入在净水管路200的水中，第二TDS传感器20设置在待检测的漏水位置且位于净水管路100外。
该实施例中，净水机的工作原理如下：
参见图1，正常制水流程为：水龙头6开关打开，将信号传输给控制板，控制板输出信号，依次打开进水电磁阀101、泵102和紫外杀菌灯5，关闭废水电磁阀301和冲洗电磁阀201，原水经过第一级过滤模块1、第二级过滤模块2后，一部分转化为浓水从针阀302排出(其中针阀302可通过当地水质来调节相应的废水比)，另一部分经过第三级过滤模块3、第四级过滤模块4和紫外杀菌灯5的作用，从水龙头6排出；第二级过滤模块2和第三级过滤模块3串联，这样水流经过的路径更长，过滤效果较好；
参见图2，废水排出和对纳滤滤芯(纳滤滤芯在本实施例中对应为第二级过滤模块2)的冲洗流程为：用户取水完毕后，水龙头6关闭，传输信号至控制板，控制板控制废 水电磁阀301打开，控制紫外杀菌灯5经过一定预设时间后关闭，此时原水经过第一级过滤模块1和第二级过滤模块2，将纳滤滤芯的浓水杂质排出，防止堵塞纳滤膜；再经过一段预设时间后，泵102关闭，进水电磁阀101和废水电磁阀301仍然打开，将泵102中的水排空降低压力，防止对泵102和滤芯产生损伤，经过预设时间后，进水电磁阀101和废水电磁阀301关闭，进入待机状态；若用户有对纳滤滤芯进行冲洗的需求，也可传输信号至控制板进行上述冲洗流程；这样，控制装置可以根据用户需求或者根据设定的程序，对纳滤滤芯进行冲洗；
参见图3，全管路冲洗流程为：为了防止用户长期不使用净水机，造成水质变质或者滤芯堵塞，设定经过一定预设时间后，净水系统就会进行一次全管路冲洗，此时控制板控制进水电磁阀101打开、泵102打开、冲洗电磁阀201打开、紫外杀菌灯5关闭，原水依次经过第一级过滤模块1、第二级过滤模块2、第三级过滤模块3、第四级过滤模块4和紫外杀菌灯5，从冲洗电磁阀201排出，再经过预设时间后冲洗电磁阀201关闭，废水电磁阀301打开，将浓水排出，再经过预设时间后泵102关闭，将泵102压力排空，再经过一定预设时间后，关闭进水电磁阀101和废水电磁阀301，回归待机状态；
在净水机的工作过程中，同时可以进行漏水检测，第二TDS传感器20的检测数据A与第一TDS传感器10的检测数据B传送至控制板中进行比较计算，进而获取比值C＝A/B，然后将比值C与漏水阈值C0进行比较，进而判断净水机的漏水情况。TDS传感器主要用于测定水中的溶解性固体总量，而不同地区的水质，其水中的溶解性固体总量差异较大。而现有技术中，仅仅将漏水位置检测获取的溶解性固体总量值与固定的溶解性固体总量阈值进行比较，则不同水质本身则会直接影响到检测的溶解性固体总量值，使得对漏水检测的结果影响较大。而本实施例的漏水检测计算过程中，通过比值C进行判断，消除了水质不同对漏水检测的结果影响，使得漏水检测结果更加准确，且适用于各种不同水质的地区，使得该净水机的适用范围更广。
实施例2：
如图4～图6所示，为本发明净水机的第二个优选实施例。该净水机包括净水装置、净水管路100、废水管路300、冲洗管路200、紫外杀菌灯5和水龙头6等主要部件。
净水装置包括通过净水管路100相连的第一级过滤模块1a、第二级过滤模块2a、第三级过滤模块3a和第四级过滤模块4a。
其中，第一级过滤模块1a用于过滤原水中的泥沙、铁锈等大颗粒物，可以采用PP棉和活性炭的组合滤芯。
第二级过滤模块2a用于过滤病毒细菌等小分子物质，可以采用400G纳滤滤芯。
第三级过滤模块3a用于过滤病毒细菌等小分子物质，可以采用400G纳滤滤芯；第三级过滤模块3a和第二级过滤模块2a并联，不同于实施例中第二级过滤模块2和第三 级过滤模块3为串联，本实施例中，第一级过滤模块1a的出水端分别连通第二级过滤模块2a的进水端和第三级过滤模块3a的进水端，第二级过滤模块2a的出水端和第三级过滤模块3a的出水端均连通第四级过滤模块4a的进水端。
第四级过滤模块4a用于过滤重金属离子和用于改善净水口感，第四级过滤模块4a可以部分采用膜色谱，本实施例中第四级过滤模块4a采用膜色谱和活性炭的组合滤芯。
类似地，在第一级过滤模块1a和第二级过滤模块2a之间设置有进水电磁阀101a和泵102a，进水电磁阀101a靠近第一级过滤模块1a设置在净水管路100上，泵102a靠近第二级过滤模块2a设置在净水管路100上。
紫外杀菌灯5设置在第四级过滤模块4a和水龙头6之间，用于将细菌病毒杀灭。
水龙头6与净水管路100的出口端相连，原水经净水装置过滤后从水龙头6流出净水。
靠近水龙头6的位置设置有用于测水流量的流量传感器30，该流量传感器30与控制板电连接。
废水管路300的进水端分别与第二级过滤模块2a和第三级过滤模块3a连通，该废水管路300用于第二级过滤模块2a和第三级过滤模块3a处理后的过滤废水排出；同样地，废水管路300上设置有废水电磁阀301、针阀302和废水逆止阀303，针阀302与废水电磁阀301并联且用于调节废水比，废水逆止阀303位于废水电磁阀301的下游和下述的冲洗逆止阀202的下游。
同样地，冲洗管路200设置在靠近净水装置的出口端，用于净水装置被冲洗时的冲洗水排出，该冲洗管路200与废水管路300连通，该冲洗管路200上设置有冲洗电磁阀201和位于冲洗电磁阀201的下游的冲洗逆止阀202，该冲洗管路200的出水端位于上述废水电磁阀301的下游。
同样地，该净水机为了实现对漏水情况的准确检测，该净水机还包括控制板、与控制板分别进行电连接的第一TDS传感器10、第二TDS传感器20，第一TDS传感器10设置在净水管路200内且位于净水装置的下游，如此第一TDS传感器10的两个检测探针则全部浸入在净水管路200的水中，第二TDS传感器20设置在待检测的漏水位置且位于净水管路100外。
本实施例的净水机，使用过程如下：
参见图3，正常制水流程为：水龙头6开关打开，将信号传输给控制装置的控制板，控制板输出信号，依次打开进水电磁阀101a、泵102a和紫外杀菌灯5，关闭废水电磁阀301和冲洗电磁阀201；原水经过第一级过滤模块1a后，进入第二级过滤模块2a和第三级过滤模块3a，一部分转化为浓水通过针阀302排出(其中针阀302可通过当地水质来调节相应的废水比)，另一部分经过第四级过滤模块4a(膜色谱和活性炭的组合滤芯)和紫外杀菌灯5的作用，从水龙头6排出；第二级过滤模块2a和第三级过滤模块3a并 联，这样水通量更大；
参见图4，废水排出和对纳滤滤芯(纳滤滤芯在本实施例中对应为第二级过滤模块2a和第三级过滤模块3a)的冲洗流程为：用户取水完毕后，水龙头6关闭，传输信号至控制板，控制板控制废水电磁阀301打开，控制紫外杀菌灯5经过一定预设时间后关闭，此时原水经过第一级过滤模块1a、第二级过滤模块2a和第三级过滤模块3a后，将第二级过滤模块2a和第三级过滤模块3a中的纳滤滤芯的浓水排出，防止堵塞纳滤膜；再经过一段预设时间后，泵102a关闭，进水电磁阀101a和废水电磁阀301仍然打开，将泵102a中的水排空降低压力，防止对泵102a和滤芯产生损伤；再经过一定预设时间后，进水电磁阀101a和废水电磁阀301关闭，进入待机状态；若用户有对纳滤滤芯进行冲洗的需求，也可传输信号至控制板进行上述冲洗流程；这样，控制装置可以根据用户需求或者根据设定的程序，对纳滤滤芯进行冲洗；
参见图5，全管路冲洗流程为：为了防止用户长期不使用净水机，造成水质变质或者滤芯堵塞，设定经过一定预设时间后，净水机就会进行一次全管路冲洗，此时控制板控制进水电磁阀101a打开、泵102a打开、冲洗电磁阀201打开、紫外杀菌灯5关闭，原水依次经过第一级过滤模块1a、第二级过滤模块2a、第三级过滤模块3a、第四级过滤模块4a和紫外杀菌灯5，从冲洗电磁阀201排出；再经过预设时间后，冲洗电磁阀201关闭，废水电磁阀301打开，将浓水排出；再经过预设时间后，泵102a关闭，将泵102a压力排空；再经过一定预设时间后，关闭进水电磁阀101和废水电磁阀301，回归待机状态；这样，控制装置可以根据设定的程序，对全管路进行冲洗；
在本实施例中，净水机的漏水检测过程同实施例1。

Claims (10)

  1. 一种净水机，包括通过净水管路(100)相连的净水装置和水龙头(6)，原水经所述净水装置过滤后从水龙头(6)流出净水；其中，净水装置包括通过净水管路(100)相连的若干个过滤模块，其特征在于：至少一个过滤模块采用用于过滤重金属离子的膜色谱。
  2. 根据权利要求1所述的净水机，其特征在于：所述净水装置包括依次设置在净水管路(100)上的用于过滤大颗粒物质的第一级过滤模块(1)、用于过滤小分子物质的第二级过滤模块(2)，用于过滤重金属离子的第三级过滤模块(3)和用于改善净水口感的第四级过滤模块(4)；其中第三级过滤模块(3)采用所述的膜色谱。
  3. 根据权利要求2所述的净水机，其特征在于：所述第一级过滤模块(1)采用PP棉滤芯或/和活性炭滤芯，第二级过滤模块(2)采用纳滤滤芯，第四级过滤模块(4)采用活性炭滤芯。
  4. 根据权利要求2所述的净水机，其特征在于：所述净水机还包括设置在第一级过滤模块(1)和第二级过滤模块(2)之间的进水电磁阀(101)和泵(102)，所述进水电磁阀(101)靠近第一级过滤模块(1)且设置在净水管路(100)上，所述泵(102)靠近第二级过滤模块(2)且设置在净水管路(100)上。
  5. 根据权利要求1所述的净水机，其特征在于：所述净水装置包括设置在净水管路(100)上的用于过滤大颗粒物质的第一级过滤模块(1a)、用于过滤小分子物质的第二级过滤模块(2a)，用于过滤小分子物质的第三级过滤模块(3a)、用于过滤重金属离子和用于改善净水口感的第四级过滤模块(4a)；
    第二级过滤模块(2a)和第三级过滤模块(3a)并联连接在净水管路(100)上，第一级过滤模块(1a)的出水端分别连通第二级过滤模块(2a)的进水端和第三级过滤模块(3a)的进水端，第二级过滤模块(2a)的出水端和第三级过滤模块(3a)的出水端均连通第四级过滤模块(4a)的进水端；
    第四级过滤模块(4a)至少部分采用所述的膜色谱。
  6. 根据权利要求5所述的净水机，其特征在于：所述第一级过滤模块(1a)采用PP棉滤芯或/和活性炭滤芯，第二级过滤模块(2a)和第三级过滤模块(3a)均采用纳滤滤芯，第四级过滤模块(4a)采用膜色谱和活性炭的组合滤芯。
  7. 根据权利要求5所述的净水机，其特征在于：所述净水机还包括设置在第一级过滤模块(1a)和第二级过滤模块(2a)之间的进水电磁阀(101a)和泵(102a)，所述进水电磁阀(101a)靠近第一级过滤模块(1a)设置在净水管路(100)上，所述泵(102a)靠近第二级过滤模块(2a)设置在净水管路(100)上。
  8. 根据权利要求3或6所述的净水机，其特征在于：所述纳滤滤芯对应的过滤模块上连接有用于净水装置过滤时产生的过滤废水排出的废水管路(300)，废水管路(300)上设置有废水电磁阀(301)，所述净水装置的出口端还连接有用于净水装置被冲洗时的冲 洗水排出的冲洗管路(200)，该冲洗管路(200)与废水管路(300)连通，该冲洗管路(200)上设置有冲洗电磁阀(201)，该冲洗管路(200)的出水端位于废水电磁阀(301)的下游。
  9. 根据权利要求8所述的净水机，其特征在于：所述废水管路(300)上设置有与废水电磁阀(301)并联且用于调节废水比的针阀(302)；
    或/和，所述冲洗管路(200)上且位于冲洗电磁阀(201)的下游设置有冲洗逆止阀(202)；
    或/和，所述废水管路(300)上设置有位于废水电磁阀(301)和冲洗逆止阀(202)下游的废水逆止阀(303)。
  10. 根据权利要求1～7中任一项或9所述的净水机，其特征在于：所述净水机还包括控制板以及与控制板分别进行电连接的第一TDS传感器(10)、第二TDS传感器(20)，第一TDS传感器(10)设置在净水管路(200)内且位于净水装置的下游，第二TDS传感器(20)设置在待检测的漏水位置且位于净水管路(100)外。
PCT/CN2019/121488 2019-09-30 2019-11-28 一种净水机 WO2021062935A1 (zh)

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