CN113735291A - Old water treatment method of water purification system and water purification system - Google Patents
Old water treatment method of water purification system and water purification system Download PDFInfo
- Publication number
- CN113735291A CN113735291A CN202110997364.1A CN202110997364A CN113735291A CN 113735291 A CN113735291 A CN 113735291A CN 202110997364 A CN202110997364 A CN 202110997364A CN 113735291 A CN113735291 A CN 113735291A
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- water
- stale
- pure
- pure water
- old
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 338
- 238000000746 purification Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000002351 wastewater Substances 0.000 claims abstract description 40
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 21
- 238000010790 dilution Methods 0.000 claims abstract description 7
- 239000012895 dilution Substances 0.000 claims abstract description 7
- 239000008213 purified water Substances 0.000 claims description 6
- 230000032683 aging Effects 0.000 claims 7
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 description 5
- 239000000306 component Substances 0.000 description 3
- 208000028659 discharge Diseases 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 239000008358 core component Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Images
Classifications
-
- 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
- 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
-
- C—CHEMISTRY; METALLURGY
- 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]
Abstract
The invention provides a method for treating old water of a water purification system and the water purification system, wherein the water purification method comprises the following steps: in the water purification system, when water taking application is carried out after a preset water taking interval time, stale water output by the reverse osmosis filter element assembly is treated by diversion and guide, wherein one path of stale water is guided by a stale water flow channel and output by a waste water output end, and the other path of stale water is guided by a pure water flow channel and output by a pure water output end after dilution treatment; based on the application of the stale water treatment method, the pure water output by the reverse osmosis filter element assembly is subjected to flow division treatment, so that the TDS value of the first cup of water taken by the water purification system using the method can be effectively reduced, and the waste of a water source is reduced.
Description
Technical Field
The invention relates to the technical field of water filtration, in particular to a stale water treatment method of a water purification system and the water purification system.
Background
At present, because reverse osmosis and the used core component of the water purification of receiving nanofiltration are the pellicle, when the water purifier standby, the TDS value of the water that stops in the former water side is higher than the TDS value that stops in the water of pure water side, makes in the water of the water salinity easy infiltration to the pure water side of former water side, and the final water salinity that can make the former water side of semi-permeable membrane and pure water side both sides divides the concentration unanimous basically. Therefore, when the water purifier is in standby for a period of time, the TDS value of the first cup of water taken by a user is high, and the water quality cannot meet the filtering requirement.
Disclosure of Invention
The invention aims to provide a stale water treatment method of a water purification system and the water purification system for overcoming the defects of the prior art.
The method for treating the old water of the water purification system comprises the following steps: in the water purification system, when water taking is carried out after a preset water taking interval time, stale water output by the reverse osmosis filter element assembly is subjected to flow division and guide stale water treatment, wherein one stale water is guided by a stale water flow passage and is output by a waste water output end, and the other stale water is guided by a pure water flow passage and is output by a pure water output end after dilution treatment.
Further, in the stale water treatment process, the flow rate of the stale water flow channel is greater than that of the pure water flow channel in the first half of the flow dividing guide application.
Further, in the process of the stale water treatment, the pressure of the pure water flow channel and/or the stale water flow channel is adjusted and set, so that the pressure of the pure water flow channel is greater than the pressure of the stale water flow channel in the first half period of the flow dividing guide application.
Further, be provided with the rearmounted filter element group spare that is used for old water dilution to handle in the pure water runner, the side position of intaking of rearmounted filter element group spare is provided with the one-way orientation of guide water source a check valve of rearmounted filter element group spare output, a check valve's applied pressure is greater than 0 setting.
Furthermore, in the pure water runner, a high-voltage switch is arranged between the first one-way valve and the rear filter element assembly, and/or a second one-way valve is arranged in the old water runner, and the application pressure of the second one-way valve is smaller than that of the first one-way valve.
Further, the old water flow passage can be controlled to be opened and closed.
Further, the preset water getting interval time is 2 to 8 hours。
Further, the pure water flow passage is usually arranged.
The water purification system comprises a raw water input end, a pure water output end and a wastewater output end, and also comprises a pressurizing assembly, a reverse osmosis filter element assembly, a rear filter element assembly and an old water control valve, wherein the reverse osmosis filter element assembly is provided with a water inlet, a pure water port and a wastewater port;
water flows along the raw water input end, the pressurizing assembly and the water inlet to form a water inlet flow channel;
water flows along the pure water port, the rear filter element assembly and the pure water output end to form a pure water flow channel;
the water flow flows along the waste water port to the waste water output end to form a waste water flow channel;
and water flows along the pure water port and the old water control valve to the waste water output end to form an old water flow channel.
Furthermore, in the pure water runner, a first one-way valve is arranged between the pure water port and the rear filter element assembly.
The invention has the beneficial effects that:
based on the application of the stale water treatment method, the pure water output by the reverse osmosis filter element assembly is subjected to flow division treatment, so that the TDS value of the first cup of water taken by the water purification system using the method can be effectively reduced, and the waste of a water source is reduced.
Drawings
Fig. 1 is a schematic view of a waterway application structure in embodiment 1;
fig. 2 is a schematic view of a water path application structure of an embodiment 2 of the water purification system of the present invention;
FIG. 3 is a schematic diagram of TDS value comparison of a first cup of water in different applications of the water purification system; wherein, item 1 is based on the prior art shut down wash and the first cup of water intaking direct system water application contrast scheme condition, item 2 is the application scheme condition of example 1, item 3 is the application scheme condition that the waterway structure setting of example 2 combines shut down to wash, item 4 is the application scheme condition that the waterway structure setting of example 2 does not carry out the reposition of redundant personnel processing immediately when the first cup of water intaking, and item 5 to 8 are the waterway structure setting of example 2 and carry out the reposition of redundant personnel processing and set up different old water treatment process drainage time condition when the first cup of water intaking.
Description of reference numerals:
a raw water input end 1, a first control valve 11, a three-way ball valve 12,
A pure water output end 2, a first one-way valve 21, a high-voltage switch 22,
A waste water output end 3, a waste water control valve 31,
A pressurizing assembly 4, a first old water control valve 40, a first output end 401, a second output end 402, a second old water control valve 41, a second one-way valve 42,
A reverse osmosis filter element assembly 5, a water inlet 51, a pure water port 52, a wastewater port 53,
A post filter element assembly 6 and a pre-filter element assembly 7.
Detailed Description
In order to make the technical solution, the purpose and the advantages of the present invention more apparent, the present invention will be further explained with reference to the accompanying drawings and embodiments.
A reverse osmosis filtration system comprises a raw water input end 1, a pure water output end 2 and a wastewater output end 3, and further comprises a pressurizing assembly 4, a front filter element assembly 7, a reverse osmosis filter element assembly 5, a rear filter element assembly 6, an old water control valve, a three-way ball valve 12, a first control valve 11, a high-pressure switch 22, a wastewater control valve 31, a first one-way valve 21 and a second one-way valve 42, wherein the reverse osmosis filter element assembly 5 is provided with a water inlet 51, a pure water port 52 and a wastewater port 53;
water flows along the raw water input end 1, the three-way ball valve 12, the preposed filter element assembly 7, the first control valve 11, the pressurizing assembly 4 and the water inlet 51 to form a water inlet flow passage;
the water flows along the pure water port 52, the first one-way valve 21, the high-voltage switch 22, the post-filter element assembly 6 to the pure water output end 2, and a pure water flow passage is formed.
The water flows along the waste water port 53, the waste water control valve 31 to the waste water output terminal 3, forming a waste water flow passage.
Example 1:
as shown in fig. 1, based on the above waterway configuration, in the present embodiment, the stale-water control valve is a first stale-water control valve 40 disposed between the purified water port 52 and the first check valve 21, and the first stale-water control valve 40 is in the form of a three-way flow dividing valve structure and includes a first output end 401 and a second output end 402; the water flows along the pure water port 52, the first output end 401, the first check valve 21, the high-voltage switch 22, the post-filter element assembly 6 to the pure water output end 2, so that the pure water flow passage is formed. The first check valve 21 limits the water supply to be set from the first output end 401 to the high-voltage switch 22 in a single direction.
In this application, a first stale water flow path is formed by allowing water to flow along the pure water port 52, the second output port 402, the second check valve 42 and the wastewater output port 3; the second one-way valve 42 defines a water source output arrangement that is unidirectional from the second output 402 to the waste output 3.
The first check valve 21 and the second check valve 42 are both non-pressure check valves.
Specifically, the waterway application principle of the water purification system is as follows:
under the normal water production state, an external tap water source is input from the raw water input end 1, the first control valve 11 is in an open state, and under the driving of the pressurization assembly 4, primary filtration is carried out from the three-way ball valve 12 to the preposed filter element assembly 7 to obtain purified water; the obtained purified water passes through the first control valve 11 and the pressurizing assembly 4 to the position of the water inlet 51, and is input to the reverse osmosis filter element assembly 5 through the water inlet flow channel.
The input purified water is filtered by the reverse osmosis filter element assembly 5 to generate pure water and wastewater; the second output 402 of the first stale water control valve 40 is normally closed and in a closed state; the pure water flow is output to a pure water output end 2 along the pure water flow channel, and the pure water output end 2 is connected with a water using component such as a water tap and the like to be used for leading out the pure water.
The waste water control valve 31 is in an open state, and a waste water flow is output to the waste water output end 3 along the waste water flow channel, and the waste water output end 3 is similarly connected with a corresponding water outlet assembly for collection and application of waste water extraction.
After the water purification system stops working, the TDS value of the pure water side on the RO membrane module is increased along with the time progress until the solute concentrations of the raw water side and the pure water side reach the balance; the first cup of water obtained from the subsequent water production has a higher TDS value.
Therefore, if the user opens the water using component of the pure water output end 2 by taking water after the preset water taking interval time, the water purifying system will be controlled by the preset program to start the old water treatment process.
The water purification system is enabled to control the high-voltage switch 22 to start by a preset program, the first control valve 11 is opened, and an external tap water source is input into the reverse osmosis filter element assembly 5 through the water inlet channel under the driving of the pressurization assembly 4; at this time, the second output port 402 of the first stale water control valve 40 is opened and the first output port 401 is closed, and the generated pure water with an excessively high TDS value is stale water, which is led out to the waste water output port 3 through the first stale water flow channel to be led out as waste water in the corresponding water outlet assembly along with the waste water. Preferably, the preset water getting interval time is 2 to 8 hours.
Then, after the preset water discharging time, the old water in the original reverse osmosis filter core assembly 5 is basically discharged, the second output end 402 of the first old water control valve 40 is closed and the first output end 401 thereof is opened, the first old water flow channel is closed, the water purification system enters a normal water production state, and the produced pure water is continuously guided to the pure water output end 2 for outputting. The above-mentioned preset drainage time may be set to 5 to 10 seconds, preferably 7 seconds.
This water purification system is through selecting to discharge the higher first cup of water of TDS value priority to directly solve the problem that the user first cup of water experienced the sense.
In this example 1 application, the post-filter cartridge module 6 is an optional and disposable option.
Example 2:
in water purification system applications, the present invention is further applied in combination with a corresponding stale water treatment method.
The stale water treatment method comprises the following steps: in the water purification system, when water is taken after a predetermined water taking interval, the pure water output from the reverse osmosis filter element assembly 5 is guided in a divided manner, wherein one path of pure water is guided through the old water flow channel and output from the wastewater output terminal 3, and the other path of pure water is guided through the pure water flow channel and output from the pure water output terminal 2 after being processed by the post-filter element assembly 6.
Then, based on the above application of the stale water treatment method, the waterway application of the present embodiment is different from that of the above embodiment 1 in that: the pure water flow passage is normally arranged.
Specifically, in the waterway structure of the above-described embodiment 1, the first old water control valve 40 is applied so that the first output port 401 is normally opened, and only the opening and closing control of the second output port 402 is applied.
On the other hand, as shown in fig. 2, the stale water control valve may be configured in the form of a second stale water control valve 41 of a conventional two-port structure, the second stale water control valve 41 preferably being configured in the form of an electromagnetic control valve; the water flows along the pure water port 52, the first one-way valve 21, the high-voltage switch 22, the post-filter element assembly 6 to the pure water output end 2 to form a pure water flow channel which is set in a normal open state without a control valve; and the first check valve 21 limits the water source to be arranged from the pure water port 52 to the high-pressure switch 22 in a single direction. The old water flow passage is formed by making water flow along the pure water port 52, the second old water control valve 41 and the second check valve 42 to the waste water output end 3, and is controlled to open and close according to the opening and closing of the second old water control valve 41. The second check valve 42 limits the water source to be output from the second old water control valve 41 to the waste water output terminal 3 in one direction.
Therefore, if the user opens the water using component of the pure water output end 2 by taking water after the preset water taking interval time, the water purifying system will be controlled by the preset program to start the old water treatment process.
At this time, the high-voltage switch 22 is controlled to be started, the first control valve 11 is opened, and under the driving of the pressurizing assembly 4, external tap water is input into the reverse osmosis filter element assembly 5 through the water inlet channel; at this time, the second stale water control valve 41 is opened, stale water having a high TDS value outputted from the reverse osmosis filter cartridge assembly 5 is divided into two parts, and a part of stale water is directly discharged from the waste water output terminal 3 under the guidance of the opened stale water flow path; the other part of the stale water is input to the post-positioned filter core component 6 along with the pure water flow channel for further filtration, so as to filter the pure water meeting the standard and output the pure water to the outside. Preferably, the preset water getting interval time is 2 to 8 hours.
As shown in fig. 3, this illustration discloses that the user obtains the TDS value of the first cup of water under different application scenarios of different setup scenarios of the water purification system.
In the present embodiment, in the flow dividing application in which the normal pure water flow passage is combined with the open-close control of the stale water flow passage, the discharged stale water is treated in two parts during the discharge treatment of the stale water. One part of the old water is directly discharged from the old water flow passage for treatment, and the other part of the old water flows to the post-filter element assembly 6 for dilution treatment. The low TDS concentration pure water that persists in this rearmounted filter element group spare 6 will mix the dilution with the old water of above-mentioned another part stream and use, when having satisfied the first cup of water TDS demand standard that the user acquireed, has reduced the waste of water source.
Furthermore, based on the waterway application of embodiment 1, when a user takes a first cup of water, the pure water waterway is communicated to obtain pure water after waiting for a preset drainage time of old water; in the application based on the embodiment, the user can directly and immediately obtain the pure water, and the user can be given a higher water getting experience.
In a preferred embodiment, the application pressure of the first check valve 21 is greater than 0, and the old water circuit may be selected without the second check valve 42 or the application pressure of the second check valve 42 is less than the application pressure of the first check valve 21. In the stale water treatment process, when the flow dividing and guiding application of stale water is just started, the flow output quantity of stale water is less, the flow pressure of the stale water is insufficient, and in the first half period of the flow dividing and guiding application, the pure water flow passage belongs to a high-pressure end and the stale water flow passage belongs to a low-pressure end; based on the application condition of the pressure difference, the water flow of the old water channel is larger than that of the pure water channel, and the old water with relatively large TDS concentration is directly discharged from the old water channel firstly for the most part. Then, in the later half period of the flow dividing and guiding application of the stale water, along with the stable water flow output quantity of the stale water, the water flow output pressure of the stale water is greater than the application pressure of the first one-way valve 21 and the second one-way valve 42, the water flow pressures of the stale water flow channel and the pure water flow channel reach balance, and the outputted stale water is substantially averagely divided into the two flow channels. The application condition of the arrangement can further form high TDS concentration old water discharge emphasis guide, and improve the pure water quality of water intake of a user from a first cup of water.
The above description is only a preferred embodiment of the present invention, and those skilled in the art may still modify the described embodiment without departing from the implementation principle of the present invention, and the corresponding modifications should also be regarded as the protection scope of the present invention.
Claims (10)
1. The method for treating the old water in the water purification system is characterized in that in the water purification system, when water taking application is carried out after a preset water taking interval time, the old water output by the reverse osmosis filter core assembly is treated by flow division and guide, wherein one path of old water is guided by the old water flow channel and output by the waste water output end, and the other path of old water is guided by the pure water flow channel and output by the pure water output end after dilution treatment.
2. The aging water treatment method according to claim 1, wherein the flow rate of the aging water flow passage is greater than that of the pure water flow passage during the first half of the application of the divided flow guide during the aging water treatment.
3. The aging water treatment method according to claim 2, wherein the pressure adjustment setting of the pure water flow passage and/or the aging water flow passage is performed during the aging water treatment so that the pressure of the pure water flow passage is greater than the pressure setting of the aging water flow passage in the first half of the application of the divided flow guide.
4. The stale water treatment method according to claim 3, wherein a post-filter assembly for stale water dilution treatment is arranged in the pure water flow channel, a first one-way valve for guiding a water source to output in one direction towards the post-filter assembly is arranged at a water inlet side position of the post-filter assembly, and the application pressure of the first one-way valve is greater than 0.
5. The stale water treatment method according to claim 4, wherein a high-pressure switch is arranged between the first one-way valve and the post-filter element assembly in the pure water flow passage, and/or a second one-way valve is arranged in the stale water flow passage, and the application pressure of the second one-way valve is smaller than that of the first one-way valve.
6. The stale water treatment method according to claim 1, wherein the stale water flow passage is openably and closably controllable.
7. The stale water treatment method according to claim 1, wherein the preset water intake interval time is 2 to 8 hours.
8. The stale water treatment method according to any one of claims 1 to 7, wherein the pure water flow passage is normally provided.
9. The water purification system to which the stale water treatment method according to any one of claims 1 to 8 is applied, comprising a raw water input terminal, a pure water output terminal and a waste water output terminal, and further comprising a pressurizing assembly, a reverse osmosis filter element assembly, a post-filter element assembly and a stale water control valve, wherein the reverse osmosis filter element assembly is provided with a water inlet, a pure water port and a waste water port;
water flows along the raw water input end, the pressurizing assembly and the water inlet to form a water inlet flow channel;
water flows along the pure water port, the rear filter element assembly and the pure water output end to form a pure water flow channel;
the water flow flows along the waste water port to the waste water output end to form a waste water flow channel;
and water flows along the pure water port and the old water control valve to the waste water output end to form an old water flow channel.
10. The water purification system of claim 9, wherein a first one-way valve is disposed in the purified water flow passage between the purified water port and the post-filter element assembly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2021207215349 | 2021-04-09 | ||
| CN202120721534 | 2021-04-09 |
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| CN113735291A true CN113735291A (en) | 2021-12-03 |
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| CN202110997364.1A Pending CN113735291A (en) | 2021-04-09 | 2021-08-27 | Old water treatment method of water purification system and water purification system |
| CN202122043514.3U Active CN216472503U (en) | 2021-04-09 | 2021-08-27 | Water purification system |
| CN202122060671.5U Active CN216038914U (en) | 2021-04-09 | 2021-08-30 | Water purification system |
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| CN202122060671.5U Active CN216038914U (en) | 2021-04-09 | 2021-08-30 | Water purification system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012245439A (en) * | 2011-05-25 | 2012-12-13 | Kurita Water Ind Ltd | Apparatus for producing ultrapure water |
| CN211896173U (en) * | 2020-03-10 | 2020-11-10 | 浙江绍兴苏泊尔生活电器有限公司 | RO water purifier capable of limiting TDS (total dissolved solids) of first cup of water to be higher |
| CN212356648U (en) * | 2020-05-12 | 2021-01-15 | 广东韦博科技有限公司 | Water purification system capable of flushing and refluxing |
-
2021
- 2021-08-27 CN CN202110997364.1A patent/CN113735291A/en active Pending
- 2021-08-27 CN CN202122043514.3U patent/CN216472503U/en active Active
- 2021-08-30 CN CN202122060671.5U patent/CN216038914U/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012245439A (en) * | 2011-05-25 | 2012-12-13 | Kurita Water Ind Ltd | Apparatus for producing ultrapure water |
| CN211896173U (en) * | 2020-03-10 | 2020-11-10 | 浙江绍兴苏泊尔生活电器有限公司 | RO water purifier capable of limiting TDS (total dissolved solids) of first cup of water to be higher |
| CN212356648U (en) * | 2020-05-12 | 2021-01-15 | 广东韦博科技有限公司 | Water purification system capable of flushing and refluxing |
Non-Patent Citations (1)
| Title |
|---|
| 倪书洪: "电力工业环境经济", vol. 1, 水利电力出版社, pages: 23 * |
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| CN216038914U (en) | 2022-03-15 |
| CN216472503U (en) | 2022-05-10 |
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