CN103041704A - Reverse osmosis water purifying system and operation method thereof - Google Patents
Reverse osmosis water purifying system and operation method thereof Download PDFInfo
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- CN103041704A CN103041704A CN2012105835111A CN201210583511A CN103041704A CN 103041704 A CN103041704 A CN 103041704A CN 2012105835111 A CN2012105835111 A CN 2012105835111A CN 201210583511 A CN201210583511 A CN 201210583511A CN 103041704 A CN103041704 A CN 103041704A
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Abstract
The invention provides a reverse osmosis water purifying system and an operation method of the reverse osmosis water purifying system, and the initial water producing TDS (total dissolved solids) value of the reverse osmosis water purifying system can be controlled to be lower. The method comprises the steps as follows: when the reverse osmosis water purifying system is stopped after producing purified water, gas is filled into a water inlet of a reverse osmosis membrane element in the reverse osmosis water purifying system, and raw water and concentrated water in the reverse osmosis membrane element are replaced with the filled gas. Due to the adoption of the technical scheme, the raw water and the concentrated water in the reverse osmosis membrane element are replaced with the filled gas, so that bidirectional osmosis in a reverse osmosis membrane when the system is stopped can be avoided and the initial water producing TDS value when the system is restarted can be controlled to be lower.
Description
Technical field
The present invention relates to water-treatment technology field, relate to especially the operation method of a kind of reverse osmosis purified water system and reverse osmosis purified water system.
Background technology
The nucleus equipment of reverse osmosis purified water system is reverse-osmosis membrane element, and it utilizes principle of reverse osmosis that water is purified.Fig. 1 is the schematic diagram according to the basic structure of a kind of reverse osmosis purified water of the prior art system.As shown in Figure 1, the reverse osmosis purified water system mainly comprises reverse-osmosis membrane element 11, inlet pipeline 12, wastewater effluent pipeline 13 and pure water outlet pipeline 14.Fig. 1 shows a kind of concrete structure of wastewater effluent pipeline 13 and pure water outlet pipeline 14.Referring to Fig. 1, waste water ratio csr controller 131 and scouring electromagnetic valve 132 in parallel are arranged in the wastewater effluent pipeline 13; Non-return valve 141 and high-voltage switch gear 142 are arranged in the pure water outlet pipeline 14.A pretreatment unit 10 can be arranged before entering water electromagnetic valve 121, thereby preliminary treatment is carried out in water inlet (normally running water), for example adopt activated carbon cartridge or PP filter core to filter.
After the reverse osmosis purified water system prepares pure water and then shuts down, former water, condensed water, pure water are arranged in the reverse-osmosis membrane element.Have two-way penetration effect in the reverse-osmosis membrane element this moment, and TDS (total dissolved solid) value of the pure water in the reverse-osmosis membrane element is raise gradually.So when again starting this reverse osmosis purified water system, the pure water that original concentration is higher in the reverse-osmosis membrane element will be discharged as the pure water of preparation, caused the initial stage product water TDS value of reverse osmosis purified water system high.
Summary of the invention
In view of this, the invention provides the operation method of a kind of reverse osmosis purified water system and reverse osmosis purified water system, can make the initial stage product water TDS value of reverse osmosis purified water system lower.
For achieving the above object, according to an aspect of the present invention, provide the first reverse osmosis purified water system.
The first reverse osmosis purified water of the present invention system comprises reverse-osmosis membrane element and is connected to inlet pipeline, wastewater effluent pipeline and pure water outlet pipeline on this reverse-osmosis membrane element, comprise entering water electromagnetic valve and water pump in the described inlet pipeline, be connected with a branch road between described entering water electromagnetic valve and the described water pump, an air inlet electromagnetic valve and an air pump are arranged in this branch road.
The operation method of the first reverse osmosis purified water system is provided according to a further aspect in the invention.
The operation method of the first reverse osmosis purified water of the present invention system is applied to the first reverse osmosis purified water of the present invention system, the method comprises: after described reverse osmosis purified water system produces pure water, stop described water pump, close described entering water electromagnetic valve, open described air inlet electromagnetic valve, make described wastewater effluent pipeline be in unobstructed state, start described air pump, thereby inflation is replaced the former water of its inside and gas that condensed water is charged in the described reverse-osmosis membrane element.
Alternatively, after in described reverse-osmosis membrane element, inflating, described method also comprises: close described air pump and described air inlet electromagnetic valve, open described entering water electromagnetic valve, make described wastewater effluent pipeline be in unobstructed state, open described water pump, thereby make water enter described reverse-osmosis membrane element via described entering water electromagnetic valve; Through making described wastewater effluent pipeline be in waste water ratio state of a control after the default time, thereby make described reverse osmosis purified water system begin to produce pure water.
Alternatively, the step that makes described wastewater effluent pipeline be in unobstructed state comprises: open the scouring electromagnetic valve in parallel with the waste water ratio csr controller in the described wastewater effluent pipeline.
According to another aspect of the invention, provide the second reverse osmosis purified water system.
The second reverse osmosis purified water of the present invention system, comprise reverse-osmosis membrane element and be connected to inlet pipeline, wastewater effluent pipeline and pure water outlet pipeline on this reverse-osmosis membrane element, comprise entering water electromagnetic valve and pump in the described inlet pipeline, described pump is the water and gas dual-purpose pump; Be connected with a branch road between described entering water electromagnetic valve and the described pump, an air inlet electromagnetic valve is arranged in this branch road.
The operation method of the second reverse osmosis purified water system is provided according to another aspect of the invention.
The operation method of the second reverse osmosis purified water of the present invention system is applied to the second reverse osmosis purified water of the present invention system, the method comprises: after described reverse osmosis purified water system produces pure water, open described air inlet electromagnetic valve, close described entering water electromagnetic valve, make described wastewater effluent pipeline be in unobstructed state, keep described pump to be in running status, thereby inflation is replaced the former water of its inside and gas that condensed water is charged in the described reverse-osmosis membrane element.
Alternatively, after in described reverse-osmosis membrane element, inflating, described method also comprises: open described entering water electromagnetic valve, close described air inlet electromagnetic valve, make described wastewater effluent pipeline be in unobstructed state, keep described pump to be in running status, thereby make water enter described reverse-osmosis membrane element via described entering water electromagnetic valve; Through making described wastewater effluent pipeline be in waste water ratio state of a control after the default time, thereby make described reverse osmosis purified water system begin to produce pure water.
Alternatively, the step that makes described wastewater effluent pipeline be in unobstructed state comprises: open the scouring electromagnetic valve in parallel with the waste water ratio csr controller in the described wastewater effluent pipeline.
The operation method of the third reverse osmosis purified water system is provided according to another aspect of the invention.
The operation method of the third reverse osmosis purified water system of the present invention comprises: then shut down in the situation that described reverse osmosis purified water system produces pure water; the water inlet of the reverse-osmosis membrane element in the described reverse osmosis purified water system is filled with gas, and the gas that former water in this reverse-osmosis membrane element and condensed water are charged is replaced.
Alternatively, described gas is to be filled with from the entering water electromagnetic valve of described reverse osmosis purified water system and the pipeline between the water pump.
According to technical scheme of the present invention; in the situation that producing pure water, the reverse osmosis purified water system then shuts down; the water inlet of the reverse-osmosis membrane element in this reverse osmosis purified water system is filled with gas; the gas that the interior former water of this reverse-osmosis membrane element and condensed water are charged is replaced; two-way penetration in the time of can avoiding shutting down like this in the reverse osmosis membrane, thus when making again start operation the initial stage during pure water processed TDS lower.
Description of drawings
Accompanying drawing is used for understanding the present invention better, does not consist of improper restriction of the present invention.Wherein:
Fig. 1 is the schematic diagram according to the basic structure of a kind of reverse osmosis purified water of the prior art system;
Fig. 2 is the schematic diagram according to a kind of basic structure of the reverse osmosis purified water system of the embodiment of the invention;
Fig. 3 is the schematic diagram according to the another kind of basic structure of the reverse osmosis purified water system of the embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing example embodiment of the present invention is explained, to help understanding, they should be thought it only is exemplary comprising the various details of the embodiment of the invention.Therefore, those of ordinary skills will be appreciated that, can make various changes and modification to the embodiments described herein, and can not deviate from scope and spirit of the present invention.Equally, for clarity and conciseness, omitted the description to known function and structure in the following description.
Fig. 2 is the schematic diagram according to a kind of basic structure of the reverse osmosis purified water system of the embodiment of the invention.As shown in Figure 2, improvement has been done on the basis of the reverse osmosis purified water system of the reverse osmosis purified water system of the embodiment of the invention in Fig. 1, except reverse-osmosis membrane element 11, inlet pipeline 12, wastewater effluent pipeline 13 and pure water outlet pipeline 14, also have a branch road 15, be connected between the entering water electromagnetic valve 121 and water pump 122 in the inlet pipeline 12.An air inlet electromagnetic valve 151 and an air pump 152 are arranged in this branch road.
Shown in Figure 2 this reverse osmosis purified water system is when bringing into operation, supposing does not have water in the current reverse-osmosis membrane element, close air pump 152 and air inlet electromagnetic valve 151 this moment, open scouring electromagnetic valve 132 (thereby making wastewater effluent pipeline 13 be in unobstructed state), start water pump 122, former like this water (normally running water can carry out some preliminary treatment to running water and for example filter) just can enter reverse-osmosis membrane element 11 via entering water electromagnetic valve 121.Through the default time, for example behind the 8-15S, close scouring electromagnetic valve 132, make wastewater streams through waste water ratio csr controller 131, wastewater effluent pipeline 13 is in waste water ratio state of a control like this, and this moment, counter-infiltration system shown in Figure 1 just began to produce pure water.
After the pure water of producing; shut down if need; then stop water pump 122; close entering water electromagnetic valve 121; open air inlet electromagnetic valve 151; and scouring electromagnetic valve 132 is opened, thus booster air pump 152 in reverse-osmosis membrane element, inflate, the former water of its inside and gas that condensed water all is charged are replaced.After replacement is finished; stop air pump 152; close air inlet electromagnetic valve 151; be air in the reverse-osmosis membrane element 11 like this; avoided in the prior art when the reverse osmosis purified water system-down in the reverse-osmosis membrane element 11 because thereby two-way penetration has increased TDS, TDS is lower when so just having guaranteed in the early stage pure water processed.The gas that is filled with can be air, also can be other safe gases.
Fig. 3 is the schematic diagram according to the another kind of basic structure of the reverse osmosis purified water system of the embodiment of the invention.The structure of reverse osmosis purified water system shown in Figure 3 is to shown in Figure 1 similar, and difference is the water pump 122 among Fig. 2 is replaced with water and gas dual-purpose pump 123 among Fig. 3, and namely this pump can pump water, also can pump gas.
The method of operation of the method for operation of reverse osmosis purified water system shown in Figure 3 and reverse osmosis purified water system shown in Figure 2 is similar, all be after producing pure water in the reverse-osmosis membrane element fill gas style such as air.Particularly, after reverse osmosis purified water system shown in Figure 2 produces pure water, open air inlet electromagnetic valve 151, close entering water electromagnetic valve 121, make wastewater effluent pipeline 13 be in unobstructed state, keep pump 123 to be in running status, thereby to reverse-osmosis membrane element 11 interior inflations the former water of its inside and gas that condensed water is charged are replaced.Close air inlet electromagnetic valve 151 after inflation, close scouring electromagnetic valve 132, this moment, the reverse osmosis purified water system was in stopped status.
When needs are produced pure water, open entering water electromagnetic valve 121, close air inlet electromagnetic valve 151, make wastewater effluent pipeline 13 be in unobstructed state thereby open scouring electromagnetic valve 132, keep pump 123 to be in running status, thereby make water enter reverse-osmosis membrane element 11 via entering water electromagnetic valve 121; Next close scouring electromagnetic valve 132 after the time that process is preset, thereby make wastewater streams make wastewater effluent pipeline 13 be in waste water ratio state of a control through waste water ratio csr controller 131, like this, the reverse osmosis purified water system begins to produce pure water.
Can find out from above description; in the embodiment of the invention; in the situation that producing pure water, the reverse osmosis purified water system then shuts down; the water inlet of the reverse-osmosis membrane element in this reverse osmosis purified water system is filled with gas; the gas that the interior former water of this reverse-osmosis membrane element and condensed water are charged is replaced; two-way penetration in the time of can avoiding shutting down like this in the reverse osmosis membrane, thus when making again start operation the initial stage during pure water processed TDS lower.This method is not only applicable to the reverse osmosis purified water system of two kinds of structures in the present embodiment, and is applicable equally for the reverse osmosis purified water system of other structures.
The above-mentioned specific embodiment does not consist of limiting the scope of the invention.Those skilled in the art should be understood that, depend on designing requirement and other factors, and various modifications, combination, sub-portfolio and alternative can occur.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the protection domain of the present invention.
Claims (10)
1. reverse osmosis purified water system comprises reverse-osmosis membrane element and is connected to inlet pipeline, wastewater effluent pipeline and pure water outlet pipeline on this reverse-osmosis membrane element, comprises entering water electromagnetic valve and water pump in the described inlet pipeline, it is characterized in that,
Be connected with a branch road between described entering water electromagnetic valve and the described water pump, an air inlet electromagnetic valve and an air pump are arranged in this branch road.
2. the operation method of a reverse osmosis purified water system is applied to reverse osmosis purified water claimed in claim 1 system, it is characterized in that, the method comprises:
After described reverse osmosis purified water system produces pure water, stop described water pump, close described entering water electromagnetic valve, open described air inlet electromagnetic valve, make described wastewater effluent pipeline be in unobstructed state, start described air pump, thereby inflation is replaced the former water of its inside and gas that condensed water is charged in the described reverse-osmosis membrane element.
3. operation method according to claim 2 is characterized in that, after the inflation, described method also comprises in described reverse-osmosis membrane element:
Close described air pump and described air inlet electromagnetic valve, open described entering water electromagnetic valve, make described wastewater effluent pipeline be in unobstructed state, open described water pump, thereby make water enter described reverse-osmosis membrane element via described entering water electromagnetic valve;
Through making described wastewater effluent pipeline be in waste water ratio state of a control after the default time, thereby make described reverse osmosis purified water system begin to produce pure water.
4. according to claim 2 or 3 described operation methods, it is characterized in that, the step that makes described wastewater effluent pipeline be in unobstructed state comprises: open the scouring electromagnetic valve in parallel with the waste water ratio csr controller in the described wastewater effluent pipeline.
5. reverse osmosis purified water system comprises reverse-osmosis membrane element and is connected to inlet pipeline, wastewater effluent pipeline and pure water outlet pipeline on this reverse-osmosis membrane element, comprises entering water electromagnetic valve and pump in the described inlet pipeline, it is characterized in that,
Described pump is the water and gas dual-purpose pump;
Be connected with a branch road between described entering water electromagnetic valve and the described pump, an air inlet electromagnetic valve is arranged in this branch road.
6. the operation method of a reverse osmosis purified water system is applied to reverse osmosis purified water claimed in claim 5 system, it is characterized in that, the method comprises:
After described reverse osmosis purified water system produces pure water, open described air inlet electromagnetic valve, close described entering water electromagnetic valve, make described wastewater effluent pipeline be in unobstructed state, keep described pump to be in running status, thereby inflation is replaced the former water of its inside and gas that condensed water is charged in the described reverse-osmosis membrane element.
7. operation method according to claim 6 is characterized in that, after the inflation, described method also comprises in described reverse-osmosis membrane element:
Open described entering water electromagnetic valve, close described air inlet electromagnetic valve, make described wastewater effluent pipeline be in unobstructed state, keep described pump to be in running status, thereby make water enter described reverse-osmosis membrane element via described entering water electromagnetic valve;
Through making described wastewater effluent pipeline be in waste water ratio state of a control after the default time, thereby make described reverse osmosis purified water system begin to produce pure water.
8. according to claim 6 or 7 described operation methods, it is characterized in that, the step that makes described wastewater effluent pipeline be in unobstructed state comprises: open the scouring electromagnetic valve in parallel with the waste water ratio csr controller in the described wastewater effluent pipeline.
9. the operation method of a reverse osmosis purified water system; it is characterized in that; comprise: then shut down in the situation that described reverse osmosis purified water system produces pure water; the water inlet of the reverse-osmosis membrane element in the described reverse osmosis purified water system is filled with gas, and the gas that former water in this reverse-osmosis membrane element and condensed water are charged is replaced.
10. operation method according to claim 9 is characterized in that, described gas is to be filled with from the entering water electromagnetic valve of described reverse osmosis purified water system and the pipeline between the water pump.
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| CN2012105835111A CN103041704A (en) | 2012-12-28 | 2012-12-28 | Reverse osmosis water purifying system and operation method thereof |
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| CN2012105835111A CN103041704A (en) | 2012-12-28 | 2012-12-28 | Reverse osmosis water purifying system and operation method thereof |
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| CN105461016A (en) * | 2015-12-24 | 2016-04-06 | 陕西浩泽环保科技发展有限公司 | Install-free RO (Reverse Osmosis) water dispenser system capable of automatically emptying water purifying tank and control method thereof |
| CN106315767A (en) * | 2016-09-30 | 2017-01-11 | 浙江沁园水处理科技有限公司 | Water purifier with function of reducing TDS (Total Dissolved Solids) value of re-yielded water |
| WO2017206716A1 (en) * | 2016-05-31 | 2017-12-07 | 艾欧史密斯(中国)热水器有限公司 | Water purifier and water preparation method thereof |
| CN108569794A (en) * | 2018-05-04 | 2018-09-25 | 陈裕娟 | A kind of reverse osmosis purified water system |
| CN108726638A (en) * | 2018-07-02 | 2018-11-02 | 珠海格力电器股份有限公司 | The control method of water treatment system, purifying drinking appliance and water treatment system |
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| US20110198275A1 (en) * | 2010-02-17 | 2011-08-18 | Edwin M. Hayes | Manual foot actuated/solar power - air compressor air pressure driven, emergency reverse osmosis water purification system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105461016A (en) * | 2015-12-24 | 2016-04-06 | 陕西浩泽环保科技发展有限公司 | Install-free RO (Reverse Osmosis) water dispenser system capable of automatically emptying water purifying tank and control method thereof |
| WO2017206716A1 (en) * | 2016-05-31 | 2017-12-07 | 艾欧史密斯(中国)热水器有限公司 | Water purifier and water preparation method thereof |
| US10835871B2 (en) | 2016-05-31 | 2020-11-17 | A. O. Smith Corporation | Water purifier and water preparation method thereof |
| CN106315767A (en) * | 2016-09-30 | 2017-01-11 | 浙江沁园水处理科技有限公司 | Water purifier with function of reducing TDS (Total Dissolved Solids) value of re-yielded water |
| CN106315767B (en) * | 2016-09-30 | 2019-07-26 | 浙江沁园水处理科技有限公司 | It is discharged the water purifier of TDS value function again with reduction |
| CN108569794A (en) * | 2018-05-04 | 2018-09-25 | 陈裕娟 | A kind of reverse osmosis purified water system |
| CN108726638A (en) * | 2018-07-02 | 2018-11-02 | 珠海格力电器股份有限公司 | The control method of water treatment system, purifying drinking appliance and water treatment system |
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Application publication date: 20130417 |