WO2018129762A1 - 净水设备 - Google Patents

净水设备 Download PDF

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Publication number
WO2018129762A1
WO2018129762A1 PCT/CN2017/071586 CN2017071586W WO2018129762A1 WO 2018129762 A1 WO2018129762 A1 WO 2018129762A1 CN 2017071586 W CN2017071586 W CN 2017071586W WO 2018129762 A1 WO2018129762 A1 WO 2018129762A1
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WO
WIPO (PCT)
Prior art keywords
water
pipe
valve
water purification
faucet
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PCT/CN2017/071586
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English (en)
French (fr)
Inventor
周勇
王永平
昂永程
Original Assignee
佛山市美的清湖净水设备有限公司
美的集团股份有限公司
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.)
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Priority claimed from CN201720048817.5U external-priority patent/CN206447676U/zh
Priority claimed from CN201710022011.3A external-priority patent/CN108298706A/zh
Application filed by 佛山市美的清湖净水设备有限公司, 美的集团股份有限公司 filed Critical 佛山市美的清湖净水设备有限公司
Publication of WO2018129762A1 publication Critical patent/WO2018129762A1/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
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • 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
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/005—Valves
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/006—Cartridges
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/046—Recirculation with an external loop

Definitions

  • the present invention relates to the field of electrical appliance manufacturing technology, and in particular to a water purification device.
  • water is stored in the outlet pipe after each use, and when it is used again, the stored water is discharged first and then the newly prepared purified water is discharged. After being used for a long time, the water stored in the outlet pipe is prone to secondary pollution, thereby endangering the health of the user.
  • the present invention aims to solve at least one of the above technical problems in the prior art to some extent.
  • the present invention proposes a water purifying device which has the advantages of healthy and safe effluent, sufficient utilization of water resources, and avoiding waste of water resources.
  • an embodiment of the present invention provides a water purifying device, the water purifying device comprising: a water purifying filter, the water purifying filter is connected with an inlet pipe and an outlet pipe, and the inlet pipe is connected to a raw water source; a faucet connected to the water purification filter through the outlet pipe, the faucet is provided with detecting means for detecting whether the faucet is opened; a water pump, the water pump is connected to the water inlet pipe; The return pipe is respectively connected to the inlet pipe and the outlet pipe, and the connection node of the return pipe and the inlet pipe is located between the water pump and the raw water source; the on-off valve, the on-off a valve connected to the return pipe; a controller, the controller respectively communicating with the on-off valve and the detecting device to control the on-off valve and the device when the detecting device detects that the faucet is open The pump is turned on for a predetermined time.
  • the water purifying apparatus has the advantages of health and safety of effluent, sufficient utilization of water resources, and avoiding waste of water resources.
  • water purifying apparatus may further have the following additional technical features:
  • the water purifying device further includes a one-way valve that allows only water of the water inlet pipe to flow into the water storage pipe, the one-way valve being connected to the return pipe and located at the on-off valve Between the inlet pipe and the inlet pipe.
  • the water purifying device further includes a pre-filter cartridge, the pre-filter cartridge being connected to the inlet pipe and located at a connection node between the raw water source and the return pipe and the inlet pipe between.
  • the pre-filter element is provided in plurality and a plurality of the pre-filter elements are arranged in series.
  • the water purifying device further includes a rear filter element connected to the water outlet pipe and at a connection between the water purification filter element and the return water pipe and the water outlet pipe Between nodes.
  • the rear filter element is an activated carbon filter element.
  • connection node of the return pipe and the outlet pipe is adjacent to the faucet.
  • the on-off valve is a solenoid valve.
  • the on-off valve is a normally closed solenoid valve.
  • the water purification cartridge is a reverse osmosis filter.
  • FIG. 1 is a schematic structural view of a water purifying apparatus according to an embodiment of the present invention.
  • water purification device 1 water purification filter 100, water inlet pipe 200, outlet pipe 300, faucet 400, water pump 500, return pipe 600, on-off valve 700, controller 800, check valve 900, pre-filter 1000 Rear filter element 1100.
  • a water purification apparatus 1 according to an embodiment of the present invention will be described below with reference to the drawings.
  • a water purification apparatus 1 includes a water purification cartridge 100, a faucet 400, a water pump 500, a return pipe 600, an on-off valve 700, and a controller 800.
  • An inlet pipe 200 and an outlet pipe 300 are connected to the water purification cartridge 100, and the inlet pipe 200 communicates with the raw water source.
  • the faucet 400 is connected to the water purification cartridge 100 through the outlet pipe 300, and the faucet 400 is provided with detecting means for detecting whether the faucet 400 is open.
  • the water pump 500 is connected to the water inlet pipe 200.
  • the return pipe 600 is connected to the inlet pipe 200 and the outlet pipe 300, respectively, and the connection node of the return pipe 600 and the inlet pipe 200 is located between the water pump 500 and the raw water source.
  • the on-off valve 700 is connected to the return pipe 600.
  • the controller 800 communicates with the on-off valve 700, the water pump 500, and the detecting device, respectively, to control the on-off valve 700 and the water pump 500 to be turned on for a predetermined time when the detecting device detects that the faucet 400 is open.
  • the "predetermined time” is related to the diameter and length of the water outlet pipe 300 and the pressure of the water pump 500, and can be obtained by a person skilled in the art by calculation or simple experiment. It should also be understood here that the communication means of "the controller 800 communicates with the on-off valve 700, the water pump 500 and the detection device, respectively” means wired communication and wireless communication.
  • the faucet 400 When the user needs to take clean water, the faucet 400 will be turned on. At this time, the detecting device detects that the faucet 400 is open, sends a signal to the controller 800, and the controller 800 controls the on-off valve 700 and the water pump 500 to open, so that the water outlet pipe 300 is opened.
  • the stored water therein flows back to the inlet pipe 200 through the return pipe 600 under the negative pressure generated by the water pump 500.
  • the stored water is again filtered by the water purification cartridge 100 to become purified water.
  • all the stored water in the outlet pipe 300 is sent back to the inlet pipe 200.
  • the on-off valve 700 and the water pump 500 are closed, and the purified water is It flows out normally through the faucet 400.
  • the raw water can be effectively filtered. This can eliminate bacteria, viruses, heavy metals, organic phosphorus and other harmful substances in the tap water, and it is easy to eliminate the hidden dangers caused by water quality to human health, and to improve the user's water safety.
  • the water stored in the outlet pipe 300 can be transported back to the inlet pipe 200 through the return pipe 600 by the water pump 500 before the faucet 400 is normally discharged, thereby avoiding the outlet pipe 300.
  • the direct storage of the stored water causes the user to take in the water that has been placed for a long time.
  • the newly prepared purified water flows out through the outlet pipe 300 to ensure that the user receives the freshly prepared purified water, and prevents the user from receiving the water that is susceptible to secondary pollution. Realize the instant and freshen, further improve the user's water safety.
  • the water accumulated in the water outlet pipe 300 of the water purifying device 1 can be returned to the water inlet pipe 200, and the water stored in the water outlet pipe 300 can pass through the water purification cartridge 100 again, so that the water in the outlet pipe 300 can be made.
  • the stored water is purified again. In this way, the water stored in the water outlet pipe 300 can be recycled again, so that the water resources can be fully utilized and the waste of water resources can be avoided.
  • the water purifying device 1 is provided with the controller 800 and the on-off valve 700, and the detecting device is disposed on the faucet 400.
  • the detecting device can be used to detect the opening of the faucet 400 and pass
  • the controller 800 controls the detecting device, the on-off valve 700, and the water pump 500 to be turned on for a predetermined time.
  • a reasonable predetermined time can be obtained through calculation or simple experiment, and the stored water in the outlet pipe 300 can be completely returned to the inlet pipe 200 through the return pipe 600, thereby reducing the time for the user to wait for the water to be discharged, thereby achieving the shortest time.
  • Fresh water is drained from the faucet 400 during the time, avoiding the user waiting for extra time and improving the automation and intelligence of the water purification equipment.
  • the water purifying device 1 can not only prevent the user from picking up the stored water, so that the stored water can be recycled, and can prevent the user from waiting for the water to be discharged for a long time.
  • the water purification device 1 has the advantages of effluent health and safety, sufficient utilization of water resources, and avoiding waste of water resources.
  • a water purifying apparatus 1 according to an embodiment of the present invention will be described below with reference to the drawings.
  • a water purification device 1 includes a water purification cartridge 100, a faucet 400, a water pump 500, a return pipe 600, an on-off valve 700, and a controller 800. .
  • the water purifying device 1 further includes a check valve 900 that allows only the water of the inlet pipe 200 to flow into the water storage pipe, and the check valve 900 is connected to the return pipe 600 and located at the on-off valve 700 and Between the water pipes 200. Since the check valve 900 can only return the water accumulated in the water outlet pipe 300 of the water purifying device 1 back to the water inlet pipe 200 without reverse flow, the water in the water inlet pipe 200 can be prevented from flowing in through the return pipe 600.
  • the unpurified raw water is discharged into the outlet pipe 300 through the return pipe 600 and discharged from the faucet 400, thereby preventing the user from receiving the unpurified water.
  • the raw water further ensures the health and safety of the water purification equipment 1 effluent.
  • the water purification apparatus 1 further includes a pre-filter element 1000 coupled to the inlet pipe 200 and located between the raw water source and the connection node of the return pipe 600 and the inlet pipe 200.
  • a pre-filter element 1000 coupled to the inlet pipe 200 and located between the raw water source and the connection node of the return pipe 600 and the inlet pipe 200.
  • the pre-filter element 1000 is a plurality of and a plurality of pre-filter elements 1000 are arranged in series.
  • a plurality of pre-filters 1000 can be used for filtering, which not only can further ensure the coarse filtering effect on the large particle impurities in the raw water, improve the reliability of the working of the pre-filter 1000, and can be realized by setting the pre-filter 1000 of different filtering levels.
  • the multi-stage filtration of raw water further prevents large particles of impurities from entering the subsequent pipelines and equipment, and plays an active role in protecting the downstream pipelines and equipment.
  • the water purification apparatus 1 further includes a rear filter element 1100 which is connected to the outlet water pipe 300 and between the water purification filter element 100 and the connection node of the return water pipe 600 and the outlet pipe 300. This allows the filtration to be performed again by the post-filter 1100 before the water is discharged from the faucet 400, thereby further ensuring the purity of the effluent.
  • the rear filter element 1100 is an activated carbon filter element.
  • the activated carbon filter element is a filter element that integrates adsorption, filtration, interception, catalysis, and the like, and can effectively remove excess chlorine and other chemical substances in the water, and can also remove water color. And odor.
  • the post-filter 1100 can be used to adsorb and remove impurities and odors in the water to further improve the water quality, improve the taste of the water, and at the same time remove the color and odor in the water, thereby facilitating the user's water experience.
  • the predetermined time is calculated according to the length of the water outlet pipe 300 between the rear filter element 1100 and the faucet 400, the pipe diameter of the water outlet pipe 300, and the pressure of the water pump 500, so as to ensure the water storage in the pipeline. Avoid users waiting for extra time in case of complete discharge.
  • FIG. 1 shows a water purification apparatus 1 according to the present invention, a connection node of a return pipe 600 and an outlet pipe 300 adjacent to a faucet 400.
  • the water in the outlet pipe 300 can be completely returned from the return pipe 600, thereby ensuring that the user can obtain fresh purified water when the faucet 400 is turned on, and the water can be prevented from being directly discharged through the faucet 400, thereby further saving water resources.
  • the on-off valve 700 is a solenoid valve.
  • the solenoid valve is opened, and the water in the outlet pipe 300 flows back through the return pipe 600.
  • the electric control of the on-off valve 700 can be realized, which not only can facilitate the opening and closing of the on-off valve 700, but also can improve the sensitivity and accuracy of the controller 800 for controlling the on-off valve 700 due to the fast response speed of the solenoid valve. It is convenient to improve the reliability of the function switching of the return pipe 600.
  • the on-off valve 700 is a normally closed solenoid valve.
  • the normally closed solenoid valve is a valve body that is closed under the action of a spring, and the valve body is an open solenoid valve when energized, so that power can be supplied to the on/off valve 700 when it is required to be opened.
  • the water flow can pass through the on-off valve 700. This can facilitate the control of the water flow in the return pipe 600, and further improve the reliability of the function switching of the return pipe 600.
  • FIG. 1 shows a water purification device 1 according to the invention, the water purification cartridge 100 being a reverse osmosis filter. Due to the higher filtration rate of the reverse osmosis filter, it is convenient to obtain high quality purified water.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. Or in one piece; it may be a mechanical connection, or it may be an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship between two elements. Unless otherwise expressly defined. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

Abstract

一种净水设备(1)，包括：净水滤芯(100)，净水滤芯(100)上设有进水管(200)和出水管(300)；水龙头(400)，水龙头(400)上设有检测水龙头(400)开闭的检测装置；水泵(500)；回水管(600)，回水管(600)分别与进水管(200)和出水管(300)相连；通断阀(700)，通断阀(700)连接在回水管(600)上；控制器(800)，控制器(800)在水龙头(400)打开时控制通断阀(700)和水泵(500)开启预定时间。

Description

净水设备 技术领域
本发明涉及电器制造技术领域，具体而言，涉及一种净水设备。
背景技术
相关技术中的净水设备，其每次使用后会在出水管内留有存水，再次使用时会先排出存水再排出新制备的净水。在长时间不使用后，出水管内的存水易发生二次污染，从而危害用户的身体健康。
发明内容
本发明旨在至少在一定程度上解决现有技术中的上述技术问题之一。为此，本发明提出一种净水设备,该净水设备具有出水健康安全、水资源利用充分、避免水资源浪费等优点。
为实现上述目的本发明的实施例提出一种净水设备，所述净水设备包括：净水滤芯，所述净水滤芯上连接有进水管和出水管，所述进水管与原水水源连通；水龙头，所述水龙头通过所述出水管与所述净水滤芯相连，所述水龙头上设有用于检测所述水龙头是否打开的检测装置；水泵，所述水泵连接在所述进水管上；回水管，所述回水管分别与所述进水管和所述出水管相连且所述回水管与所述进水管的连接节点位于所述水泵与所述原水水源之间；通断阀，所述通断阀连接在所述回水管上；控制器，所述控制器分别与所述通断阀和所述检测装置通讯以在所述检测装置检测到所述水龙头打开时控制所述通断阀和所述水泵开启预定时间。
因此，根据本发明实施例的净水设备具有出水健康安全、水资源利用充分、避免水资源浪费等优点。
另外，根据本发明上述实施例的净水设备还可以具有如下附加的技术特征：
根据本发明的一个实施例，所述净水设备还包括仅允许所述进水管的水流入储水管的单向阀，所述单向阀连接在所述回水管上且位于所述通断阀与所述进水管之间。
根据本发明的一个实施例，所述净水设备还包括前置滤芯，所述前置滤芯连接在所述进水管上且位于所述原水水源和所述回水管与所述进水管的连接节点之间。
根据本发明的一个实施例，所述前置滤芯为多个且多个所述前置滤芯串联设置。
根据本发明的一个实施例，所述净水设备还包括后置滤芯，所述后置滤芯连接在所述出水管上且在于所述净水滤芯和所述回水管与所述出水管的连接节点之间。
根据本发明的一个实施例，所述后置滤芯为活性炭滤芯。
根据本发明的一个实施例，所述回水管与所述出水管的连接节点邻近所述水龙头。
根据本发明的一个实施例，所述通断阀为电磁阀。
根据本发明的一个实施例，所述通断阀为常闭电磁阀。
根据本发明的一个实施例，所述净水滤芯为反渗透滤芯。
附图说明
图1是根据本发明实施例的净水设备的结构示意图。
附图标记：净水设备1、净水滤芯100、进水管200、出水管300、水龙头400、水泵500、回水管600、通断阀700、控制器800、单向阀900、前置滤芯1000、后置滤芯1100。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
下面参考附图描述根据本发明实施例的净水设备1。
如图1所示，根据本发明实施例的净水设备1包括净水滤芯100、水龙头400、水泵500、回水管600、通断阀700、控制器800。
净水滤芯100上连接有进水管200和出水管300，进水管200与原水水源连通。水龙头400通过出水管300与净水滤芯100相连，水龙头400上设有用于检测水龙头400是否打开的检测装置。水泵500连接在进水管200上。回水管600分别与进水管200和出水管300相连且回水管600与进水管200的连接节点位于水泵500与所述原水水源之间。通断阀700连接在回水管600上。控制器800分别与通断阀700、水泵500和所述检测装置通讯以在所述检测装置检测到水龙头400打开时控制通断阀700和水泵500开启预定时间。
具体而言，所述“预定时间”与出水管300的管径和长度以及水泵500的压力有关，本领域的技术人员可以通过计算或简单实验得出。这里还需要理解的是“控制器800分别与通断阀700、水泵500和所述检测装置通讯”指的通讯方式包括有线通讯和无线通讯。
下面参考附图描述根据本发明实施例的净水设备1的工作过程。
在用户需要取用净水时，将开启水龙头400，此时所述检测装置检测到水龙头400打开，向控制器800发送信号，控制器800控制通断阀700和水泵500打开，使出水管300内的存水在水泵500产生的负压下通过回水管600流回进水管200。存水再次经过净水滤芯100的过滤变为净水，经过预定时间后，出水管300内的存水全部输送回进水管200，此时通断阀700和水泵500关闭，净化后的水则通过水龙头400正常流出。
根据本发明实施例的净水设备1，通过设置净水滤芯100，能够使原水得到有效的过滤。这样可以清除自来水内的细菌、病毒、重金属、有机磷等各种有害物质，便于消除水质对人的身体健康带来的隐患，便于提高用户的用水安全性。
并且，通过设置回水管600、通断阀700和水泵500，能够在水龙头400正常出水之前，利用水泵500将出水管300内的存水通过回水管600输送回进水管200，以避免出水管300内的存水直接排出导致用户接取到放置时间较长的存水。这样在出水管300内的存水排净后，新制备的净水再通过出水管300流出，保证用户接取到新鲜制备的净水，避免用户接取到易发生二次污染的存水，实现即开即鲜，进一步提高用户的用水安全性。
此外，通过设置回水管600，能够使净水设备1的出水管300中积存的水流回到进水管200，使出水管300内的存水再次经过净水滤芯100，以使出水管300内的存水再次得到净化。这样可以使出水管300内的存水能够再次回收利用，从而可以使水资源得到充分利用，避免水资源的浪费。
进一步地，净水设备1通过设置控制器800和通断阀700，并在水龙头400上设置所述检测装置，可以在用户开启水龙头400时，利用所述检测装置检测水龙头400的开启，并通过控制器800控制所述检测装置、通断阀700和水泵500开启预定时间。这样可以通过计算或简单实验得出合理的所述预定时间，保证出水管300内的存水完全通过回水管600流回进水管200的同时减少用户等待出水的时间，由此可以实现在最短的时间内从水龙头400流出新鲜的净水，避免用户等待额外的时间，提高净水设备的自动化和智能化。
也就是说，净水设备1不仅能够避免用户接取存水，使存水得到回收利用，而且能够避免用户较长时间等待出水。
因此，根据本发明实施例的净水设备1，具有出水健康安全、水资源利用充分、避免水资源浪费等优点。
下面参考附图描述根据本发明具体实施例的净水设备1。
在本发明的一些具体实施例中，如图1所示，根据本发明实施例的净水设备1包括净水滤芯100、水龙头400、水泵500、回水管600、通断阀700、控制器800。
可选地，如图1所示，净水设备1还包括仅允许进水管200的水流入储水管的单向阀900，单向阀900连接在回水管600上且位于通断阀700与进水管200之间。由于单向阀900仅能够使净水设备1的出水管300中积存的水流回到进水管200中，而不会出现反向流动的情况，以避免进水管200内的水通过回水管600流入出水管300内，避免在原水水源处的压力大于水泵500产生的负压的情况下，导致未净化过的原水通过回水管600流入出水管300后从水龙头400排出，从而避免用户接取未净化的原水，进一步保证净水设备1出水健康安全。
有利地，如图1所示，净水设备1还包括前置滤芯1000，前置滤芯1000连接在进水管200上且位于所述原水水源和回水管600与进水管200的连接节点之间。这样可以保证原水管网中产生的泥沙、铁锈等大颗粒杂质不会进入到后续的管路中，避免后续管路和设备发生堵塞或损坏，对后续管路和设备起到保护作用。
更为有利地，前置滤芯1000为多个且多个前置滤芯1000串联设置。这样可以利用多个前置滤芯1000进行过滤，不仅可以进一步保证对原水中大颗粒杂质的粗滤效果，提高前置滤芯1000工作的可靠性，而且可以通过设置不同过滤级别的前置滤芯1000实现原水的多级过滤，进一步避免大颗粒杂质进入后续的管路和设备中，对下游的后续管路和设备等起到积极的保护作用。
具体地，如图1所示，净水设备1还包括后置滤芯1100，后置滤芯1100连接在出水管300上且在于净水滤芯100和回水管600与出水管300的连接节点之间。这样可以在水从水龙头400排出之前利用后置滤芯1100再次进行过滤，从而进一步保证出水的纯净。
更为具体地，后置滤芯1100为活性炭滤芯。具体而言，所述活性炭滤芯是一种集吸附、过滤、截获、催化等多种作用于一体的滤芯，能够有效去除水中多余的氯以及其他化学物质等污染物，而且还能去除水质的颜色和异味。这样可以利用后置滤芯1100对水中的杂质和异味进行吸附和祛除，以进一步改善水质，提高出水的口感，同时还能除去水中的颜色和异味，便于提高用户的用水体验。
具体而言，所述预定时间根据后置滤芯1100与水龙头400之间的出水管300的长度、出水管300的管径和水泵500的压力计算得出，以在保证管路内的存水能够完全排出的情况下避免用户等待额外的时间。
图1示出了根据本发明的净水设备1，回水管600与出水管300的连接节点邻近水龙头400。这样可以使出水管300中的存水能够完全从回水管600流回，从而保证用户在开启水龙头400时，能够获得新鲜的净水，而且可以避免存水直接通过水龙头400排出，进一步节约水资源。
有利地，通断阀700为电磁阀。水龙头400打开时，所述电磁阀开启，出水管300中的水通过回水管600流回。这样可以实现通断阀700的电动控制，不仅可以便于控制通断阀700的开闭，而且由于电磁阀的响应速度快，可以便于提高控制器800对通断阀700控制的灵敏度和准确性，便于提高回水管600功能切换的可靠性。
更为有利地，通断阀700为常闭电磁阀。具体而言，所述常闭电磁阀是一种在弹簧的作用下阀体是闭合的，在通电下阀体是打开的电磁阀，这样可以在需要打开通断阀700时向其供电，使水流能够通过通断阀700。这样可以便于对回水管600中的水流进行控制，进一步提高回水管600功能切换的可靠性。
图1示出了根据本发明的净水设备1，净水滤芯100为反渗透滤芯。由于反渗透滤芯的滤净率较高，这样可以便于获得高质量的净水。
根据本发明实施例的净水设备1的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (10)

  1. 一种净水设备，其特征在于，包括：
    净水滤芯，所述净水滤芯上连接有进水管和出水管，所述进水管与原水水源连通；
    水龙头，所述水龙头通过所述出水管与所述净水滤芯相连，所述水龙头上设有用于检测所述水龙头是否打开的检测装置；
    水泵，所述水泵连接在所述进水管上；
    回水管，所述回水管分别与所述进水管和所述出水管相连且所述回水管与所述进水管的连接节点位于所述水泵与所述原水水源之间；
    通断阀，所述通断阀连接在所述回水管上；
    控制器，所述控制器分别与所述通断阀、所述水泵和所述检测装置通讯以在所述检测装置检测到所述水龙头打开时控制所述通断阀和所述水泵开启预定时间。
  2. 根据权利要求1所述的净水设备，其特征在于，还包括仅允许所述进水管的水流入储水管的单向阀，所述单向阀连接在所述回水管上且位于所述通断阀与所述进水管之间。
  3. 根据权利要求1所述的净水设备，其特征在于，还包括前置滤芯，所述前置滤芯连接在所述进水管上且位于所述原水水源和所述回水管与所述进水管的连接节点之间。
  4. 根据权利要求3所述的净水设备，其特征在于，所述前置滤芯为多个且多个所述前置滤芯串联设置。
  5. 根据权利要求1所述的净水设备，其特征在于，还包括后置滤芯，所述后置滤芯连接在所述出水管上且在于所述净水滤芯和所述回水管与所述出水管的连接节点之间。
  6. 根据权利要求5所述的净水设备，其特征在于，所述后置滤芯为活性炭滤芯。
  7. 根据权利要求1所述的净水设备，其特征在于，所述回水管与所述出水管的连接节点邻近所述水龙头。
  8. 根据权利要求1所述的净水设备，其特征在于，所述通断阀为电磁阀。
  9. 根据权利要求8所述的净水设备，其特征在于，所述通断阀为常闭电磁阀。
  10. 根据权利要求1所述的净水设备，其特征在于，所述净水滤芯为反渗透滤芯。
PCT/CN2017/071586 2017-01-12 2017-01-18 净水设备 WO2018129762A1 (zh)

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