CN108726638B - Water treatment system, water purification machine and control method for water treatment system - Google Patents
Water treatment system, water purification machine and control method for water treatment system Download PDFInfo
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- 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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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
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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
- C02F2301/00—General aspects of water treatment
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Abstract
本发明公开了一种水处理系统、净饮机及水处理系统的控制方法。水处理系统包括并联设置的第一反渗透单元和第二反渗透单元，所述第一反渗透单元和第二反渗透单元的两个入水口并联设置、两个净水出口并联设置，在所述第一反渗透单元的净水出口和第二反渗透单元的入水口之间设置有旁通支路，在所述旁通支路上设置有第一控制元件。本发明提供的水处理系统及净饮机，在所述第一反渗透单元的净水出口和第二反渗透单元的入水口之间设置有旁通支路，所述第一反渗透单元产生的净水经所述旁通支路进入所述第二反渗透单元，使得所述第二反渗透单元产生的第一杯净水即可为低TDS水，水质提高。
The invention discloses a water treatment system, a water purification machine and a control method of the water treatment system. The water treatment system comprises a first reverse osmosis unit and a second reverse osmosis unit arranged in parallel, two water inlets of the first reverse osmosis unit and the second reverse osmosis unit are arranged in parallel, and two clean water outlets are arranged in parallel, a bypass branch is arranged between the clean water outlet of the first reverse osmosis unit and the water inlet of the second reverse osmosis unit, and a first control element is arranged on the bypass branch. In the water treatment system and drinking water machine provided by the present invention, a bypass branch is provided between the clean water outlet of the first reverse osmosis unit and the water inlet of the second reverse osmosis unit, and the purified water produced by the first reverse osmosis unit enters the second reverse osmosis unit through the bypass branch, so that the first cup of clean water produced by the second reverse osmosis unit can be low TDS water, and the water quality is improved.
Description
技术领域technical field
本发明涉及水处理技术领域，特别是一种水处理系统、净饮机及水处理系统的控制方法。The invention relates to the technical field of water treatment, in particular to a water treatment system, a water purifier and a control method for the water treatment system.
背景技术Background technique
随着净水的普及以及用户对细菌认知的不断增强，目前无桶大通量的机型得到市场的广泛认可。With the popularization of clean water and the continuous enhancement of users' awareness of bacteria, the current large-flux tankless model has been widely recognized by the market.
现有技术的无桶大通量净饮机中存在第一杯水为高TDS的问题，这是由于当净饮机关机后，在反渗透膜的两侧分别为原水与浓水的混合物和净水，而停机后没有净水产生，同时净水一侧的水会在正渗透的作用下穿过所述反渗透膜进入浓水一侧，由于净水一侧的溶剂减小，净水一侧的水会变成高TDS水，又由于扩散作用，浓水一侧的盐溶质会有少量经所述反渗透膜进入所述净水一侧，进而进一步增加所述净水一侧的盐浓度，导致所述净水一侧的水在接第一杯水时为高TDS水。There is a problem that the first cup of water is high TDS in the barrelless large-flux net drinking machine of the prior art. This is because when the net drinking machine is turned off, the mixture of raw water and concentrated water and purified water are respectively on both sides of the reverse osmosis membrane. After the shutdown, no purified water is produced. At the same time, the water on the purified water side will pass through the reverse osmosis membrane and enter the concentrated water side under the action of forward osmosis. Due to the decrease in the solvent on the purified water side, the water on the purified water side will become high TDS water. Enter the clean water side, and further increase the salt concentration on the clean water side, causing the water on the clean water side to be high TDS water when receiving the first glass of water.
此外，在反渗透膜的使用后期，通量会衰减，出水量会显著降低。In addition, at the later stage of the reverse osmosis membrane, the flux will decay and the water output will be significantly reduced.
发明内容Contents of the invention
有鉴于此，本发明的目的之一在于提供一种能够改善第一杯水水质的水处理系统及净饮机。In view of this, one of the objectives of the present invention is to provide a water treatment system and a pure drinking machine capable of improving the quality of the first glass of water.
为达到上述目的，一方面，本发明采用如下技术方案：In order to achieve the above object, on the one hand, the present invention adopts the following technical solutions:
一种水处理系统，包括并联设置的第一反渗透单元和第二反渗透单元，所述第一反渗透单元和第二反渗透单元的两个入水口并联设置、两个净水出口并联设置，在所述第一反渗透单元的净水出口和第二反渗透单元的入水口之间设置有旁通支路，在所述旁通支路上设置有第一控制元件。A water treatment system, comprising a first reverse osmosis unit and a second reverse osmosis unit arranged in parallel, two water inlets of the first reverse osmosis unit and the second reverse osmosis unit are arranged in parallel, two clean water outlets are arranged in parallel, a bypass branch is arranged between the clean water outlet of the first reverse osmosis unit and the water inlet of the second reverse osmosis unit, and a first control element is arranged on the bypass branch.
优选地，所述第一控制元件包括开关电磁阀和/或单向阀，所述单向阀仅允许从所述第一反渗透单元的净水出口向所述第二反渗透单元的入水口流动。Preferably, the first control element includes a switch solenoid valve and/or a one-way valve, and the one-way valve only allows flow from the clean water outlet of the first reverse osmosis unit to the water inlet of the second reverse osmosis unit.
优选地，所述第一反渗透单元的净水出口连接有第一净水支路，所述第二反渗透单元的净水出口连接有第二净水支路，所述第一净水支路和第二净水支路共同连接至净水管路。Preferably, the water purification outlet of the first reverse osmosis unit is connected to a first water purification branch, the water purification outlet of the second reverse osmosis unit is connected to a second water purification branch, and the first water purification branch and the second water purification branch are jointly connected to the water purification pipeline.
优选地，在所述第一净水支路上、所述第一反渗透单元的下游侧设置有第二控制元件。Preferably, a second control element is provided on the first water purification branch road and on the downstream side of the first reverse osmosis unit.
优选地，所述第一反渗透单元的入水口连接有第一进水支路，所述第二反渗透单元的入水口连接有第二进水支路，在所述第二反渗透单元的入水口上游侧的第二进水支路上设置有第三控制元件。Preferably, the water inlet of the first reverse osmosis unit is connected with a first water inlet branch, the water inlet of the second reverse osmosis unit is connected with a second water inlet branch, and a third control element is arranged on the second water inlet branch upstream of the water inlet of the second reverse osmosis unit.
优选地，所述旁通支路的一端设置在所述第一反渗透单元的净水出口和第二控制元件之间；和/或，Preferably, one end of the bypass branch is arranged between the clean water outlet of the first reverse osmosis unit and the second control element; and/or,
所述旁通支路的另一端设置在所述第二反渗透单元的入水口和第三控制元件之间。The other end of the bypass branch is arranged between the water inlet of the second reverse osmosis unit and the third control element.
优选地，在所述第一进水支路上设置有第四控制元件。Preferably, a fourth control element is provided on the first water inlet branch.
优选地，所述第二控制元件和/或第三控制元件和/或第四控制元件为电磁阀。Preferably, the second control element and/or the third control element and/or the fourth control element are solenoid valves.
优选地，还包括与所述第一反渗透单元的浓水出口相连接的第一浓水排放支路；和/或，Preferably, it also includes a first concentrated water discharge branch connected to the concentrated water outlet of the first reverse osmosis unit; and/or,
还包括与所述第二反渗透单元的浓水出口相连接的第二浓水排放支路。It also includes a second concentrated water discharge branch connected to the concentrated water outlet of the second reverse osmosis unit.
另一方面，本发明采用如下技术方案：On the other hand, the present invention adopts following technical scheme:
一种净水机，包括上述水处理系统。A water purifier includes the above water treatment system.
此外，本发明采用如下技术方案：In addition, the present invention adopts the following technical solutions:
一种上述水处理系统的控制方法，A control method for the above-mentioned water treatment system,
所述水处理系统包括第一工作模式，在所述第一工作模式下，控制所述第一进水支路连通，所述第二进水支路截止，旁通支路连通，第一反渗透单元和第二反渗透单元均处于工作状态，控制所述第一净水支路截止，第二净水支路连通；和/或，The water treatment system includes a first working mode. In the first working mode, the first water inlet branch is controlled to be connected, the second water inlet branch is closed, the bypass branch is connected, the first reverse osmosis unit and the second reverse osmosis unit are both in the working state, the first water purification branch is controlled to be closed, and the second water purification branch is connected; and/or,
所述水处理系统包括第二工作模式，在所述第二工作模式下，控制所述第一进水支路截止，第一净水支路截止，第二进水支路连通，第二净水支路连通，旁通支路截止；或者，控制所述第二进水支路截止，第二净水支路截止，第一进水支路连通，第一净水支路连通，旁通支路截止；和/或，The water treatment system includes a second working mode. In the second working mode, the first water inlet branch is controlled to be cut off, the first water purification branch is turned off, the second water inlet branch is connected, the second water purification branch is connected, and the bypass branch is turned off; or, the second water inlet branch is controlled to be cut off, the second water purification branch is turned off, the first water inlet branch is connected, the first water purification branch is connected, and the bypass branch is cut off; and/or,
所述水处理系统包括第三工作模式，在所述第三工作模式下，控制所述第一进水支路和第二进水支路均连通，所述第一净水支路和第二净水支路均连通，控制所述旁通支路截止。The water treatment system includes a third working mode. In the third working mode, both the first water inlet branch and the second water inlet branch are controlled to be connected, the first water purification branch and the second water purification branch are both connected, and the bypass branch is controlled to be closed.
优选地，在所述水处理系统开启时控制所述水处理系统在所述第一工作模式下运行第一预定时长；和/或，Preferably, when the water treatment system is turned on, the water treatment system is controlled to operate in the first working mode for a first predetermined period of time; and/or,
在所述第二工作模式下，在第一进水支路关闭，第一净水支路关闭，第二进水支路连通，第二净水支路连通，所述第二反渗透单元处于工作状态的情况下，在所述水处理系统关机时控制所述水处理系统运行所述第一工作模式第二预定时长。In the second working mode, when the first water inlet branch is closed, the first water purification branch is closed, the second water inlet branch is connected, the second water purification branch is connected, and the second reverse osmosis unit is in a working state, the water treatment system is controlled to run the first working mode for a second predetermined time when the water treatment system is shut down.
优选地，在所述水处理系统运行总时长达到预定值后，控制所述水处理系统在所述第三工作模式下运行。Preferably, after the total operating time of the water treatment system reaches a predetermined value, the water treatment system is controlled to operate in the third working mode.
本发明提供的水处理系统及净饮机，在所述第一反渗透单元的净水出口和第二反渗透单元的入水口之间设置有旁通支路，所述第一反渗透单元产生的净水经所述旁通支路进入所述第二反渗透单元，使得所述第二反渗透单元产生的第一杯净水即可为低TDS水，水质提高。In the water treatment system and drinking water machine provided by the present invention, a bypass branch is provided between the clean water outlet of the first reverse osmosis unit and the water inlet of the second reverse osmosis unit, and the purified water produced by the first reverse osmosis unit enters the second reverse osmosis unit through the bypass branch, so that the first cup of clean water produced by the second reverse osmosis unit can be low TDS water, and the water quality is improved.
本发明提供的水处理系统的控制方法，利用所述第一反渗透单元产生的净水作为所述第二反渗透单元的进水，使得所述第二反渗透单元产生的第一杯净水即可为低TDS水，控制方法简单。The control method of the water treatment system provided by the present invention uses the clean water produced by the first reverse osmosis unit as the water intake of the second reverse osmosis unit, so that the first cup of clean water produced by the second reverse osmosis unit can be low TDS water, and the control method is simple.
附图说明Description of drawings
通过以下参照附图对本发明实施例的描述，本发明的上述以及其它目的、特征和优点将更为清楚，在附图中：Through the following description of the embodiments of the present invention with reference to the accompanying drawings, the above and other objects, features and advantages of the present invention will be more clear, in the accompanying drawings:
图1示出本发明提供的水处理系统的系统图。Fig. 1 shows a system diagram of a water treatment system provided by the present invention.
图中，In the figure,
1、第一反渗透单元；1. The first reverse osmosis unit;
2、第二反渗透单元；2. The second reverse osmosis unit;
3、第一进水支路；31、第四控制元件；3. The first water inlet branch; 31. The fourth control element;
4、第二进水支路；41、第三控制元件；4. The second water inlet branch; 41. The third control element;
5、第一净水支路；51、第二控制元件；5. The first water purification branch; 51. The second control element;
6、第二净水支路；6. The second water purification branch;
7、净水管路；7. Water purification pipeline;
8、第一浓水排放支路；81、第一废水比电磁阀；8. The first concentrated water discharge branch; 81. The first wastewater ratio solenoid valve;
9、第二浓水排放支路；91、第二废水比电磁阀；9. The second concentrated water discharge branch; 91. The second wastewater ratio solenoid valve;
10、旁通支路；101、第一控制元件。10. Bypass branch; 101. First control element.
具体实施方式Detailed ways
以下基于实施例对本发明进行描述，但是本发明并不仅仅限于这些实施例。在下文对本发明的细节描述中，详尽描述了一些特定的细节部分，为了避免混淆本发明的实质，公知的方法、过程、流程、元件并没有详细叙述。The present invention is described below based on examples, but the present invention is not limited to these examples. In the following detailed description of the present invention, some specific details are described in detail, and in order to avoid obscuring the essence of the present invention, known methods, procedures, procedures, and components are not described in detail.
此外，本领域普通技术人员应当理解，在此提供的附图都是为了说明的目的，并且附图不一定是按比例绘制的。Additionally, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
除非上下文明确要求，否则整个说明书和权利要求书中的“包括”、“包含”等类似词语应当解释为包含的含义而不是排他或穷举的含义；也就是说，是“包括但不限于”的含义。Unless the context clearly requires, throughout the specification and claims, "comprises", "comprises" and similar words should be interpreted as an inclusive rather than an exclusive or exhaustive meaning; that is, the meaning of "including but not limited to".
在本发明的描述中，需要理解的是，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。此外，在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。In the description of the present invention, it should be understood that the terms "first", "second" and so on are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.
如图1所示，本申请提供了一种水处理系统，用于净饮机，包括并联设置的第一反渗透单元1和第二反渗透单元2，所述第一反渗透单元1和第二反渗透单元2的两个入水口并联设置、两个净水出口并联设置，在所述第一反渗透单元1的净水出口和第二反渗透单元2的入水口之间设置有旁通支路10，在所述旁通支路10上设置有第一控制元件101，所述第一反渗透单元1产生的净水经所述旁通支路10进入所述第二反渗透单元2，使得所述第二反渗透单元2产生的第一杯净水即可为低TDS水，水质提高。As shown in Fig. 1, the present application provides a kind of water treatment system, is used for clean drinking machine, comprises the first reverse osmosis unit 1 and the second reverse osmosis unit 2 that are arranged in parallel, two water inlets of described first reverse osmosis unit 1 and second reverse osmosis unit 2 are arranged in parallel, two clean water outlets are arranged in parallel, a bypass branch 10 is arranged between the clean water outlet of described first reverse osmosis unit 1 and the water inlet of second reverse osmosis unit 2, and first control element 101 is arranged on described bypass branch 10, and the clean water produced by first reverse osmosis unit 1 The water enters the second reverse osmosis unit 2 through the bypass branch 10, so that the first cup of clean water produced by the second reverse osmosis unit 2 can be low TDS water, and the water quality is improved.
所述第一控制元件101为单向阀，所述单向阀仅允许从所述第一反渗透单元1的净水出口向所述第二反渗透单元2的入水口流动，以保证所述第一反渗透单元1的净水能够进入所述第二反渗透单元2，进而能够利用所述第一反渗透单元1的净水对所述第二反渗透单元2进行冲洗，直至所述第二反渗透单元2充满纯水，保证所述第二反渗透单元2不发生正渗透，从而解决第一杯水TDS较高的问题。当然，所述单向阀可以采用开关电磁阀替代。The first control element 101 is a one-way valve, and the one-way valve only allows flow from the clean water outlet of the first reverse osmosis unit 1 to the water inlet of the second reverse osmosis unit 2, so as to ensure that the clean water of the first reverse osmosis unit 1 can enter the second reverse osmosis unit 2, and then use the clean water of the first reverse osmosis unit 1 to flush the second reverse osmosis unit 2 until the second reverse osmosis unit 2 is filled with pure water, so as to ensure that the second reverse osmosis unit 2 does not undergo forward osmosis, thereby solving the problem of high TDS of the first glass of water. Of course, the one-way valve can be replaced by a switching solenoid valve.
所述第一反渗透单元1的净水出口连接有第一净水支路5，所述第二反渗透单元2的净水出口连接有第二净水支路6，所述第一净水支路5和第二净水支路6共同连接至净水管路7，在使用前期，所述第一反渗透单元1产生的净水能够选择经第一净水支路5和净水管路7排出，所述第二反渗透单元2产生的净水经第二净水支路6和净水管路7排出，保证所述水处理系统可以采用多种模式制水，满足不同需求。在使用后期，可以同时采用第一反渗透单元1和第二反渗透单元2同时制水，解决通量减小问题。The water purification outlet of the first reverse osmosis unit 1 is connected with a first water purification branch 5, and the water purification outlet of the second reverse osmosis unit 2 is connected with a second water purification branch 6. The first water purification branch 5 and the second water purification branch 6 are jointly connected to the water purification pipeline 7. In the early stage of use, the purified water produced by the first reverse osmosis unit 1 can be selected to be discharged through the first water purification branch 5 and the water purification pipeline 7, and the purified water produced by the second reverse osmosis unit 2 is discharged through the second water purification branch 6 and the water purification pipeline 7 to ensure the water treatment. The system can adopt multiple modes of water production to meet different needs. In the later stage of use, the first reverse osmosis unit 1 and the second reverse osmosis unit 2 can be used to simultaneously produce water to solve the problem of flux reduction.
在所述第一净水支路5上、所述第一反渗透单元1的下游侧设置有第二控制元件51，所述第二控制元件51优选可以是电磁阀，所述第二控制元件51能够将所述第一净水支路5打开以使所述第一反渗透单元1产生的净水排出，所述第二控制元件51能够将所述第一净水支路5关闭以使所述第一反渗透单元5产生的净水经旁通支路10进入所述第二反渗透单元2，进而能够对所述第二反渗透单元2冲洗。On the first water purification branch 5, the downstream side of the first reverse osmosis unit 1 is provided with a second control element 51. The second control element 51 can preferably be a solenoid valve. The second control element 51 can open the first water purification branch 5 so that the clean water produced by the first reverse osmosis unit 1 can be discharged.
所述第一反渗透单元1的入水口连接有第一进水支路3，在所述第一进水支路3上设置有第四控制元件31。所述第四控制元件31设置在所述第一反渗透单元1的入水口上游侧，所述第四控制元件31优选可以是电磁阀，所述第四控制元件31用于导通或关闭所述第一进水支路3，所述第四控制元件31能够用于选择待处理的水是否经所述第一反渗透单元1净化。The water inlet of the first reverse osmosis unit 1 is connected to a first water inlet branch 3 , and a fourth control element 31 is arranged on the first water inlet branch 3 . The fourth control element 31 is arranged on the upstream side of the water inlet of the first reverse osmosis unit 1. The fourth control element 31 can preferably be a solenoid valve. The fourth control element 31 is used to turn on or close the first water inlet branch 3. The fourth control element 31 can be used to select whether the water to be treated is purified by the first reverse osmosis unit 1.
所述第二反渗透单元2的入水口连接有第二进水支路4，在所述第二反渗透单元2的入水口上游侧的第二进水支路4上设置有第三控制元件41。所述第三控制元件41优选可以是电磁阀，所述第三控制元件41用于导通或关闭所述第二进水支路4，所述第三控制元件41能够用于选择待处理的水是否经所述第二反渗透单元2净化。The water inlet of the second reverse osmosis unit 2 is connected with a second water inlet branch 4 , and a third control element 41 is arranged on the second water inlet branch 4 upstream of the water inlet of the second reverse osmosis unit 2 . The third control element 41 can preferably be a solenoid valve, and the third control element 41 is used to turn on or off the second water inlet branch 4 , and the third control element 41 can be used to select whether the water to be treated is purified by the second reverse osmosis unit 2 .
所述旁通支路10的一端设置在所述第一反渗透单元1的净水出口和第二控制元件51之间，所述旁通支路10的另一端设置在所述第二反渗透单元2的入水口和第三控制元件41之间，如此，所述第一反渗透单元1产生的净水在所述第二控制元件51关闭时，经所述旁通支路10流至所述第二反渗透单元2，以对所述第二反渗透单元2进行冲洗。One end of the bypass branch 10 is arranged between the clean water outlet of the first reverse osmosis unit 1 and the second control element 51, and the other end of the bypass branch 10 is arranged between the water inlet of the second reverse osmosis unit 2 and the third control element 41, so that the clean water produced by the first reverse osmosis unit 1 flows to the second reverse osmosis unit 2 through the bypass branch 10 to flush the second reverse osmosis unit 2 when the second control element 51 is closed.
所述水处理系统还包括与所述第一反渗透单元1的浓水出口相连接的第一浓水排放支路8，所述第一浓水排放支路8上设置有第一废水比电磁阀81或者第一废水比例器，所述第一废水比例器或所述第一废水电磁阀用于调节所述第一反渗透单元1排放浓水的比例。The water treatment system also includes a first concentrated water discharge branch 8 connected to the concentrated water outlet of the first reverse osmosis unit 1, the first concentrated water discharge branch 8 is provided with a first waste water ratio solenoid valve 81 or a first waste water proportional device, and the first waste water proportional device or the first waste water solenoid valve is used to adjust the ratio of concentrated water discharged by the first reverse osmosis unit 1.
所述水处理系统还包括与所述第二反渗透单元2的浓水出口相连接的第二浓水排放支路9，所述第二浓水排放支路9上设置有第二废水电磁阀91或者第二废水比例阀，所述第二废水比例阀或所述第二废水电磁阀91用于调节所述第二反渗透单元2排放浓水的比例。The water treatment system also includes a second concentrated water discharge branch 9 connected to the concentrated water outlet of the second reverse osmosis unit 2, the second concentrated water discharge branch 9 is provided with a second waste water solenoid valve 91 or a second waste water proportional valve, and the second waste water proportional valve or the second waste water solenoid valve 91 is used to adjust the ratio of concentrated water discharged by the second reverse osmosis unit 2.
本发明还提供一种种净水机，包括上述水处理系统，所述净水机具有第一杯水TDS显著降低的优点。The present invention also provides a water purifier, including the above water treatment system. The water purifier has the advantage of significantly reducing the TDS of the first glass of water.
本发明还提供一种上述的水处理系统的控制方法。The present invention also provides a control method for the above-mentioned water treatment system.
所述水处理系统包括第一工作模式，在所述第一工作模式下，控制所述第一进水支路3连通，所述第二进水支路4截止，旁通支路10连通，此时，所述第四控制元件31打开，所述第三控制元件41关闭，所述第一控制元件101处于打开状态，所述第一反渗透单元1和第二反渗透单元均2处于工作状态，控制所述第一净水支路5截止，第二净水支路6连通，此时，所述第二控制元件51关闭。The water treatment system includes a first working mode. In the first working mode, the first water inlet branch 3 is controlled to be connected, the second water inlet branch 4 is cut off, and the bypass branch 10 is connected. At this time, the fourth control element 31 is opened, the third control element 41 is closed, the first control element 101 is in an open state, the first reverse osmosis unit 1 and the second reverse osmosis unit 2 are both in a working state, the first water purification branch 5 is controlled to be closed, and the second water purification branch 6 is connected. At this time, the second control element 51 is closed.
前处理后得到的产水经所述第一进水支路3进入所述第一反渗透单元1，所述第一反渗透单元1产生的净水经所述旁通支路10进入所述第二反渗透单元2，所述第二反渗透单元2产生的浓水经所述第二浓水排放支路9排放，所述第二反渗透单元2产生的净水经第二净水支路6和净水管路7排放，进而使得第二反渗透单元2中充满纯水，不会出现正渗透的问题，第一杯水为高TDS水的问题得到解决。The produced water obtained after the pretreatment enters the first reverse osmosis unit 1 through the first water inlet branch 3, the purified water produced by the first reverse osmosis unit 1 enters the second reverse osmosis unit 2 through the bypass branch 10, the concentrated water produced by the second reverse osmosis unit 2 is discharged through the second concentrated water discharge branch 9, and the purified water produced by the second reverse osmosis unit 2 is discharged through the second water purification branch 6 and the water purification pipeline 7, so that the second reverse osmosis unit 2 is filled with pure water, and the problem of forward osmosis does not occur, and the first glass of water has a high TDS The water problem is solved.
所述水处理系统包括第二工作模式，在所述第二工作模式下，控制所述第一进水支路3截止，第一净水支路5截止，第二进水支路4连通，第二净水支路6连通，旁通支路10截止，此时，所述第四控制元件31关闭，所述第二控制元件51关闭，所述第三控制元件41打开，所述第一控制元件101处于关闭状态，所述第二反渗透单元2处于单只工作状态；或者，控制所述第二进水支路4截止，第二净水支路6截止，第一进水支路3连通，第一净水支路5连通，旁通支路10截止，此时，所述第四控制元件31打开，所述第二控制元件51打开，所述第三控制元件41关闭，所述第一控制元件101处于关闭状态，所述第一反渗透单元1处于单只工作状态。The water treatment system includes a second working mode. In the second working mode, the first water inlet branch 3 is controlled to be closed, the first water purification branch 5 is closed, the second water intake branch 4 is connected, the second water purification branch 6 is connected, and the bypass branch 10 is closed. At this time, the fourth control element 31 is closed, the second control element 51 is closed, the third control element 41 is opened, the first control element 101 is closed, and the second reverse osmosis unit 2 is in a single working state; The water branch 6 is closed, the first water inlet branch 3 is connected, the first water purification branch 5 is connected, and the bypass branch 10 is closed. At this time, the fourth control element 31 is opened, the second control element 51 is opened, the third control element 41 is closed, the first control element 101 is in the closed state, and the first reverse osmosis unit 1 is in a single working state.
前处理后得到的产水经所述第一进水支路3进入所述第一反渗透单元1，浓水经所述第一浓水排放支路8排放，净水经第一净水支路5和净水管路7排放。在所述水处理系统开启时控制所述水处理系统在所述第一工作模式下运行预定时长，以使得所述第一反渗透单元1产生的第一杯高TDS水经所述第二反渗透单元2再次过滤，进而使得所述净水管路7上得到的第一杯水为低TDS水。经所述第一工作模式运行后运行第二工作模式，制得的第一杯水为低TDS水，所述第一工作模式运行后运行第二工作模式且采用第二反渗透单元2制水时，所述第一反渗透单元1产生的净水为低TDS水。优选地，所述第一预订时长为60s。The produced water obtained after pretreatment enters the first reverse osmosis unit 1 through the first water inlet branch 3 , the concentrated water is discharged through the first concentrated water discharge branch 8 , and the purified water is discharged through the first water purification branch 5 and the water purification pipeline 7 . When the water treatment system is turned on, the water treatment system is controlled to run in the first working mode for a predetermined period of time, so that the first cup of high TDS water produced by the first reverse osmosis unit 1 is filtered again by the second reverse osmosis unit 2, so that the first cup of water obtained on the water purification pipeline 7 is low TDS water. After the first working mode is run, the second working mode is run, and the first glass of water produced is low TDS water. After the first working mode is run, the second working mode is run and the second reverse osmosis unit 2 is used to produce water, and the purified water produced by the first reverse osmosis unit 1 is low TDS water. Preferably, the first predetermined duration is 60s.
或者，前处理后得到的产水经所述第二进水支路4进入所述第二反渗透单元，浓水经所述第二浓水排放支路9排放，净水经第二净水支路6和净水管路7排放。在第一进水支路3关闭，第一净水支路5关闭，第二进水支路4连通，第二净水支路6连通，所述第二反渗透单元2处于工作状态的情况下，在所述水处理系统关机时控制所述水处理系统运行所述第一工作模式第二预定时长。经所述第一工作模式运行后，所述第二反渗透单元2中充满纯水，再在开机启动直接运行所述第二工作模式采用第二反渗透单元2制水，制得的第一杯水为低TDS水。优选地，所述第二预定时长为60s。Alternatively, the produced water obtained after pretreatment enters the second reverse osmosis unit through the second water inlet branch 4, the concentrated water is discharged through the second concentrated water discharge branch 9, and the purified water is discharged through the second water purification branch 6 and the water purification pipeline 7. When the first water inlet branch 3 is closed, the first water purification branch 5 is closed, the second water inlet branch 4 is connected, the second water purification branch 6 is connected, and the second reverse osmosis unit 2 is in the working state, when the water treatment system is shut down, the water treatment system is controlled to run the first working mode for a second predetermined period of time. After running in the first working mode, the second reverse osmosis unit 2 is filled with pure water, and then the second working mode is directly run in the second working mode when the machine is turned on, and the second reverse osmosis unit 2 is used to produce water, and the first glass of water produced is low TDS water. Preferably, the second predetermined duration is 60s.
所述水处理系统包括第三工作模式，在所述第三工作模式下，控制所述第一进水支路3和第二进水支路4均连通，此时，第四控制元件31打开，所述第三控制元件41打开，所述第一净水支路5和第二净水支路均6连通，所述第二控制元件51打开，控制所述旁通支路10截止，所述第一控制元件101关闭。The water treatment system includes a third working mode. In the third working mode, both the first water inlet branch 3 and the second water inlet branch 4 are controlled to be connected. At this time, the fourth control element 31 is opened, the third control element 41 is opened, the first water purification branch 5 and the second water purification branch 6 are connected, the second control element 51 is opened, the bypass branch 10 is controlled to be closed, and the first control element 101 is closed.
前处理后得到的产水经所述第一进水支路3进入所述第一反渗透单元1，同时经所述第二进水支路4进入所述第二反渗透单元2，所述第一反渗透单元1产生的浓水经所述第一浓水排放支路8排放，所述第二反渗透单元2产生的浓水经所述第二浓水排放支路9排放，所述第一反渗透单元1产生的净水经所述第一净水支路5和净水管路7排放，所述第二反渗透单元2产生的净水经第二净水支路6和净水管路7排放，在使用后期，前处理得到的水同时经第一反渗透单元1和第二反渗透单元2处理，解决了使用后期通量减小的问题，使得所述净水管路7上得到的水量不会减小。The produced water obtained after the pretreatment enters the first reverse osmosis unit 1 through the first water inlet branch 3, and at the same time enters the second reverse osmosis unit 2 through the second water inlet branch 4, the concentrated water produced by the first reverse osmosis unit 1 is discharged through the first concentrated water discharge branch 8, the concentrated water produced by the second reverse osmosis unit 2 is discharged through the second concentrated water discharge branch 9, the purified water produced by the first reverse osmosis unit 1 is discharged through the first purified water branch 5 and the purified water pipeline 7, and the purified water produced by the second reverse osmosis unit 2 is discharged through the second purified water. The water branch 6 and the water purification pipeline 7 are discharged. In the later period of use, the water obtained by the pretreatment is treated by the first reverse osmosis unit 1 and the second reverse osmosis unit 2 at the same time, which solves the problem of flux reduction in the later period of use, so that the amount of water obtained on the water purification pipeline 7 will not decrease.
在第三工作模式结束制水时，控制水处理系统按照第一工作模式运行，将第一反渗透单元1产生的净水对第二反渗透单元2进行冲洗，使得第二反渗透单元2中充满纯水，不发生正渗透，进而使得在第三工作模式制水时，第一杯水为第二反渗透单元2产生的低TDS水和第一反渗透单元1产生的高TDS水的混合水，第一杯水为较低TDS水，解决第一杯水TDS较高的问题。When the water production in the third working mode ends, the water treatment system is controlled to run in the first working mode, and the clean water produced by the first reverse osmosis unit 1 is flushed to the second reverse osmosis unit 2, so that the second reverse osmosis unit 2 is filled with pure water, and no forward osmosis occurs, so that when the water is produced in the third working mode, the first glass of water is the mixed water of the low TDS water produced by the second reverse osmosis unit 2 and the high TDS water produced by the first reverse osmosis unit 1, and the first glass of water is low TDS water, which solves the problem of the high TDS of the first glass of water.
优选地，在所述水处理系统运行总时长达到预定值后，控制所述水处理系统在所述第三工作模式下运行，当所述水处理系统运行总时长达到预定值后，所述第一反渗透单元1和第二反渗透单元2通量衰减，利用所述第三工作模式可以解决单只反渗透单元过滤造成的通量衰减问题。Preferably, after the total running time of the water treatment system reaches a predetermined value, the water treatment system is controlled to operate in the third working mode. When the total running time of the water treatment system reaches a predetermined value, the flux of the first reverse osmosis unit 1 and the second reverse osmosis unit 2 decays. Using the third working mode can solve the problem of flux decay caused by filtration of a single reverse osmosis unit.
本领域的技术人员容易理解的是，在不冲突的前提下，上述各优选方案可以自由地组合、叠加。Those skilled in the art can easily understand that, on the premise of no conflict, the above-mentioned preferred solutions can be freely combined and superimposed.
应当理解，上述的实施方式仅是示例性的，而非限制性的，在不偏离本发明的基本原理的情况下，本领域的技术人员可以针对上述细节做出的各种明显的或等同的修改或替换，都将包含于本发明的权利要求范围内。It should be understood that the above-mentioned implementations are only exemplary rather than restrictive. Without departing from the basic principles of the present invention, various obvious or equivalent modifications or replacements that can be made by those skilled in the art with respect to the above details will be included in the scope of the claims of the present invention.
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| KR20140073312A (en) * | 2012-12-06 | 2014-06-16 | 한국건설기술연구원 | Apparatus for producing fresh water and electric power through forward osmosis, reverse osmosis and pressure retarded osmosis using treated sewage and seawater, and method for the same |
| WO2018036753A1 (en) * | 2016-08-25 | 2018-03-01 | Unilever Plc | Reverse osmosis water purifier |
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| CN108726638A (en) | 2018-11-02 |
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