CN116375141A - TDS (time Domain reflectometer) adjusting method and RO (reverse osmosis) water purification system - Google Patents
TDS (time Domain reflectometer) adjusting method and RO (reverse osmosis) water purification system Download PDFInfo
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- CN116375141A CN116375141A CN202310333961.3A CN202310333961A CN116375141A CN 116375141 A CN116375141 A CN 116375141A CN 202310333961 A CN202310333961 A CN 202310333961A CN 116375141 A CN116375141 A CN 116375141A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 143
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000000746 purification Methods 0.000 title claims description 12
- 238000001223 reverse osmosis Methods 0.000 title abstract description 63
- 239000008399 tap water Substances 0.000 claims abstract description 49
- 235000020679 tap water Nutrition 0.000 claims abstract description 49
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 230000001276 controlling effect Effects 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 64
- 238000005259 measurement Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 230000001932 seasonal effect Effects 0.000 claims description 2
- 238000012937 correction Methods 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 description 14
- 238000011045 prefiltration Methods 0.000 description 10
- 239000007787 solid Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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Abstract
The invention relates to a TDS (time domain reflectometer) regulating method and an RO (reverse osmosis) water purifying system, wherein the method comprises the following steps: setting a first waterway, a second waterway and a total waterway, wherein the first waterway and the second waterway are respectively used for conveying tap water and RO water to the total waterway, and the total waterway is used for outputting mixed water obtained by mixing the tap water and the RO water; measuring a TDS value of tap water of the first waterway and a TDS value of RO water of the second waterway, and measuring a flow rate of the RO water of the second waterway; setting a TDS target value of the mixed water of the total waterway, obtaining the flow of tap water of the first waterway according to a calculation formula, and controlling the flow of tap water of the first waterway until the flow of tap water of the first waterway is up to finish the regulation process. According to the invention, tap water and RO water with different TDS values are mixed and output by arranging the plurality of waterways, the mixed water with different TDS values can be regulated and obtained according to the requirements, the TDS value of the mixed water is stable, correction and regulation can be automatically carried out according to the fluctuation of the TDS season of the incoming water, the TDS value of the mixed water is ensured to meet the set requirement, the user experience is improved, and the operation process is simple, convenient and quick.
Description
Technical Field
The invention belongs to the technical field of water purification and water production, and particularly relates to a TDS (total dissolved solids) regulating method and an RO (reverse osmosis) water purification system.
Background
TDS (Total Dissolved Solids), which represents the sum of the soluble solids content in water, is measured in mg/L and indicates how many milligrams of soluble solids are dissolved in 1 liter of water. The higher the TDS value, the more dissolved substances contained in the water. Total dissolved solids refers to the total amount of all solutes in water, including both inorganic and organic content. Currently, TDS values are commonly used to determine the purity level of water.
In different applications, such as making tea, coffee and the like, different requirements are placed on the quality of the water used. For example, coffee brewed with TDS of about 150 can dissolve coffee factors and the like in coffee relatively sufficiently, so that the taste of coffee is excellent. Therefore, it is desirable to provide different TDS water qualities depending on the application. The RO water purifier is a common water purifying device, is widely used in various occasions at present, and how to enable the RO water purifier to rapidly and stably produce water with a required TDS value is a problem to be solved by a person skilled in the art. In addition, because the TDS value of tap water entering the RO water purifier can produce great fluctuation along with seasons, the RO water purifier can appear in certain seasons unable stable water condition of obtaining required TDS value, namely the TDS value of the water that its output can appear great deviation with required TDS value, has greatly influenced use experience.
Disclosure of Invention
It is an object of the present invention to provide a TDS adjustment method.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a TDS adjustment method, comprising:
s1: setting a first waterway, a second waterway and a total waterway, wherein the first waterway and the second waterway are respectively used for conveying tap water and RO water to the total waterway, and the total waterway is used for outputting mixed water obtained by mixing the tap water and the RO water;
s2: measuring TDS value T of tap water of first waterway 1 TDS value T of RO water of second waterway 2 Measuring the flow F of RO water in the second waterway 2 ；
S3: setting TDS target value T of mixed water of total waterway 3s Obtaining the flow F of tap water of the first waterway according to a calculation formula 1 The calculation formula is as follows: f1 =f 2 ×(T 3s -T 2 )/(T 1 -T 3s ) Controlling the flow of tap water of the first waterway to F 1 And finishing the adjustment process.
Preferably, in S3, a TDS target value T of the mixed water of the total waterway is set 3s After that, T is regulated according to the fluctuation of the TDS season of the inflow water 3s To T 3j Obtaining the flow F of tap water in the first waterway according to a calculation formula 1 The calculation formula is as follows:
F1＝F 2 ×(T 3j -T 2 )/(T 1 -T 3j )。
further preferably, T is adjusted according to the incoming water TDS seasonal fluctuations 3s To T 3j The process of (1) comprises: measuring the TDS value T of tap water of a first waterway daily before making an adjustment 1 And calculate the average value A 1 According to A 1 Numerical value size adjustment T of (2) 3s To a different T 3j 。
Still further preferably, according to A 1 Numerical value size adjustment T of (2) 3s To a different T 3j Comprising the following steps:
(1) When A is 1 <At 200, T is adjusted 3s To T 3j 1 ；
(2) When 200 is less than or equal to A 1 When less than 300, T is regulated 3s To T 3j 2 ；
(3) When 300 is less than or equal to A 1 <500 times, T is adjusted 3s To T 3j 3 ；
(4) When 500 is less than or equal to A 1 <At 800, T is adjusted 3s To T 3j 4 ；
(5) When A is 1 When not less than 800, adjust T 3s To T 3j 5 ；
Wherein: t (T) 3j 1 ≤T 3j 2 ≤T 3j 3 ≤T 3j 4 ≤T 3j 5 And T is 3j 5 ≤200。
Preferably, in S3, the flow rate of tap water in the first waterway is controlled to F 1 In the time-course of which the first and second contact surfaces,if the flow rate of the tap water in the first waterway is controlled to be the maximum value, the maximum value is still smaller than F 1 Then adjust the flow rate F of RO water of the second waterway 2 。
Preferably, in S3, the flow rate of tap water in the first waterway is controlled to F 1 Then, TDS measurement T of the mixed water of the total waterway is measured 3c Judgment of T 3c Whether the set condition is satisfied, and if the set condition is satisfied, finishing the adjustment process.
Further preferably, the TDS measurement T of the mixed water of the total waterway is obtained by multiple measurements within a set time 3c And calculate the average value
Judging->
Whether or not at T 3s Within the range of b, where b is the set point 15, if within this range, the adjustment process is completed.
It is another object of the present invention to provide an RO water purification system.
In order to achieve the above purpose, the invention adopts the following technical scheme:
RO water purification system, the system include water route subassembly, filter core subassembly, flow detection subassembly, TDS detection subassembly and valve unit, the water route subassembly include first water route, second water route and total water route, first water route, the entry intercommunication of second water route, the export of first water route, second water route all with the entry intercommunication of total water route, the filter core subassembly include the RO filter core, the RO filter core set up on the second water road, flow detection subassembly include first flow detection spare, TDS detection subassembly include first TDS detection spare, second TDS detection spare and third TDS detection spare, valve unit include first control valve, second control valve, first TDS detection spare set up on the second water road and be located the upper reaches of RO filter core, first flow detection spare, second TDS detection spare and second control valve set up on the second water road and be located the second water road the TDS detection spare on the first water road sets up the first TDS detection spare.
Preferably, the filter element assembly further comprises a pre-filter element and a post-filter element, wherein the pre-filter element is arranged on the second water path and is positioned between the RO filter element and the first TDS detection piece, and the post-filter element is arranged on the total water path and is positioned at the upstream of the third TDS detection piece; and a conveying pump is further arranged on the second water path between the preposed filter element and the RO filter element.
Preferably, the flow detection assembly further comprises a second flow detection member and a third flow detection member, wherein the second flow detection member is arranged on the second water path and is positioned at the upstream of the RO filter element, and the third flow detection member is arranged on the total water path.
Preferably, the RO filter element is provided with a waste water outlet, a waste water waterway is arranged at the waste water outlet, and a waste water capillary tube is arranged on the waste water waterway.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the invention, tap water and RO water with different TDS values are mixed and output by arranging the plurality of waterways, the mixed water with different TDS values can be regulated and obtained according to the requirements, the TDS value of the mixed water is stable, correction and regulation can be automatically carried out according to the fluctuation of the TDS season of the incoming water, the TDS value of the mixed water is ensured to meet the set requirements, the user experience is improved, the operation process is simple, the convenience and the rapidness are realized, and the practicability is good.
Drawings
Fig. 1 is a schematic diagram of the RO water purification system according to this embodiment.
In the above figures:
10. a total waterway; 11. a first waterway; 12. a second waterway; 13. a wastewater waterway; 21. RO filter core; 22. a filter element is arranged in front; 23. a rear filter element; 31. a first flow rate detecting member; 32. a second flow rate detecting member; 33. a third flow rate detecting member; 41. a first TDS detector; 42. a second TDS detector; 43. a third TDS detector; 51. a first control valve; 52. a second control valve; 6. a transfer pump; 7. a wastewater capillary.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model provides a RO water purification system, it sets up inside the RO water purifier, as shown in FIG. 1, it mainly includes water route subassembly, filter element assembly, flow detection subassembly, TDS detection subassembly and valve assembly, and filter element assembly sets up on water route subassembly for carry out filtering operation, flow detection subassembly and TDS detection subassembly set up on water route subassembly, be used for detecting flow and the TDS value in the water route subassembly, valve assembly sets up and is used for controlling the flow in the water route subassembly on the water route subassembly.
The following details of each component and its connection relation are described in detail:
as shown in fig. 1, the waterway assembly includes a total waterway 10, a first waterway 11 and a second waterway 12, inlets of the first waterway 11 and the second waterway 12 are mutually communicated, inlets of the first waterway 11 and the second waterway 12 are used for connecting tap water sources, outlets of the first waterway 11 and the second waterway 12 are communicated with the inlet of the total waterway 10, and an outlet of the total waterway 10 is used for discharging water to a user.
The filter element assembly includes RO filter element 21, pre-filter element 22 and post-filter element 23, and RO filter element 21, pre-filter element 22 and post-filter element 23 all set up on the waterway assembly, specifically: as shown in fig. 1, the RO filter element 21 and the pre-filter element 22 are both disposed on the second waterway 12, and the pre-filter element 22 is located upstream of the RO filter element 21; a delivery pump 6 is further arranged on the second waterway 12 between the RO filter core 21 and the pre-filter core 22, and the delivery pump 6 is used for pumping water flowing out of the pre-filter core 22 to the RO filter core 21; the post filter 23 is disposed on the main waterway 10. That is, tap water enters the interior of the first waterway 11 from the inlet of the first waterway 11 and then enters the inlet of the total waterway 10 from the outlet of the first waterway 11, tap water enters the interior of the second waterway 12 from the inlet of the second waterway 12, and is filtered by the pre-filter 22 and the RO filter 21 to form RO water, the RO water enters the inlet of the total waterway 10 from the outlet of the second waterway 12, tap water output from the first waterway 11 and RO water output from the second waterway 12 are mixed in the total waterway 10, filtered by the post-filter 23, and the mixed water is output from the outlet of the total waterway 10.
In addition, as shown in fig. 1, the RO filter element 21 further has a waste water outlet, a waste water channel 13 is provided at the waste water outlet of the RO filter element 21, the waste water channel 13 is used for discharging waste water generated after passing through the RO filter element 21, and a waste water capillary tube 7 is provided on the waste water channel 13.
As shown in fig. 1, the flow rate detection assembly includes a first flow rate detection member 31, a second flow rate detection member 32, and a third flow rate detection member 33, the first flow rate detection member 31 being disposed on the second waterway 12, and the first flow rate detection member 31 being located downstream of the RO cartridge 21, the first flow rate detection member 31 being configured to detect the flow rate of RO water in the second waterway 12; the second flow rate detecting member 32 is disposed on the second waterway 12, and the second flow rate detecting member 32 is located upstream of the pre-cartridge 22, the second flow rate detecting member 32 being configured to detect the flow rate of tap water entering the second waterway 12; a third flow rate detecting member 33 is provided on the total waterway 10, and the third flow rate detecting member 33 is located downstream of the post-filter element 23, and the third flow rate detecting member 3 is for detecting the flow rate of the mixed water in the total waterway 10. The first flow rate detecting member 31, the second flow rate detecting member 32, and the third flow rate detecting member 33 may each employ a common flow meter, but are not limited to this embodiment.
As shown in fig. 1, the TDS detection assembly includes a first TDS detection member 41, a second TDS detection member 42, and a third TDS detection member 43, the first TDS detection member 41 is disposed on the second waterway 12, and the first TDS detection member 41 is located upstream of the pre-filter element 22, and the first TDS detection member 41 is configured to detect a TDS value of tap water entering the second waterway 12, that is, a TDS value of tap water in the first waterway 11; a second TDS detection member 42 is disposed on the second waterway 12, and the second TDS detection member 42 is located downstream of the RO cartridge 21, the second TDS detection member 42 being configured to detect a TDS value of the RO water entering the second waterway 12; a third TDS detection member 43 is provided on the total waterway 10, and the third TDS detection member 43 is located downstream of the post-filter element 23, the third TDS detection member 43 being configured to detect the TDS value of the mixed water entering the total waterway 10.
As shown in fig. 1, the valve assembly includes a first control valve 51 and a second control valve 52, the first control valve 51 is disposed on the first waterway 11, and the first control valve 51 is used for controlling the flow rate of tap water in the first waterway 11; a second control valve 52 is provided on the second waterway 12, and the second control valve 52 is located downstream of the RO cartridge 21, the second control valve 52 being for controlling the flow rate of RO water in the second waterway 12. The first control valve 51 and the second control valve 52 may each be a needle valve, but are not limited to this embodiment.
The TDS adjustment method of the RO water purification system of the present embodiment is specifically described below:
the method specifically comprises the following steps:
s1: the first waterway 11, the second waterway 12 and the total waterway 10 are provided, the first waterway 11 and the second waterway 12 are respectively used for conveying tap water and RO water to the total waterway 10, and the total waterway 10 is used for outputting mixed water after the tap water and the RO water are mixed, specifically, as in the RO water purifying system, and the details are not repeated here.
S2: the TDS value T of tap water in the first waterway 11 is measured by the first TDS detector 41 1 The TDS value T of the RO water of the second waterway 12 is measured by the second TDS detector 42 2 The flow rate F of the RO water of the second waterway 12 is measured by the first flow rate detecting member 31 2 。
S3: setting upTDS target value T of mixed water outputted from total waterway 10 3s Obtaining the tap water flow F of the first waterway 11 according to a calculation formula 1 The calculation formula is as follows: f1 =f 2 ×(T 3s -T 2 )/(T 1 -T 3s ) Controlling the tap water flow rate of the first waterway 11 to F 1 The mixed water outputted from the main waterway 10 is made to meet the set condition, and the adjustment process is completed.
Specifically: at the TDS target value T of the mixed water output by the total waterway 10 3s After that, the adjustment is needed, and the target value T is needed because the TDS value of the tap water can greatly fluctuate with seasons 3s Adjusting to T according to the fluctuation of the TDS season of the inflow 3j The specific adjusting process is as follows: the TDS value T of the tap water of the first waterway 11 is measured daily from the date of installation of the RO water purifier before the adjustment is made 1 And calculate the average value A 1 According to A 1 Numerical value size adjustment T of (2) 3s To a different T 3j Alternatively, the data is downloaded from outside by communication before the adjustment is performed, and the average value A is calculated as well 1 According to A 1 Numerical value size adjustment T of (2) 3s To a different T 3j According to A 1 Numerical value size adjustment T of (2) 3s To a different T 3j The process is carried out according to the following conditions:
(1) When A is 1 <At 200, T is adjusted 3s To T 3j 1 ；
(2) When 200 is less than or equal to A 1 When less than 300, T is regulated 3s To T 3j 2 ；
(3) When 300 is less than or equal to A 1 <500 times, T is adjusted 3s To T 3j 3 ；
(4) When 500 is less than or equal to A 1 <At 800, T is adjusted 3s To T 3j 4 ；
(5) When A is 1 When not less than 800, adjust T 3s To T 3j 5 ；
Wherein: t (T) 3j 1 ≤T 3j 2 ≤T 3j 3 ≤T 3j 4 ≤T 3j 5 And T is 3j 5 200. Ltoreq.T, e.g. 3j 1 It is preferable to take 110, T 3j 2 It can be 120, T 3j 3 Preferably 130, T 3j 4 140, T is taken 3j 5 150 is desirable. Also, in other embodiments, when A 1 <At 150, T can also be directly regulated 3s To A 1 ；
Will T 3s Adjusting to T according to the fluctuation of the TDS season of the inflow 3j Then, the flow F of tap water in the first waterway 11 is obtained according to the calculation formula 1 At this time, the calculation formula becomes: f1 =f 2 ×(T 3j -T 2 )/(T 1 -T 3j )。
At the time of calculating the flow rate F of tap water in the first waterway 11 1 Thereafter, the first control valve 51 controls the flow rate of tap water in the first water path 11 to F 1 In the process, if the flow rate of the tap water in the first waterway 11 is controlled to the maximum value, the maximum value is still smaller than F 1 That is, the flow rate of tap water in the first waterway 11 is still smaller than F after the opening degree of the first control valve 51 is adjusted to the maximum 1 The flow rate F of the RO water of the second waterway 12 is regulated by the second control valve 52 2 The mixed water outputted from the total waterway 10 is made to meet the set condition.
In order to determine whether or not the mixed water outputted from the total waterway 10 meets the set condition, it is necessary to measure the TDS measurement value T of the mixed water of the total waterway 10 3c Specifically: the TDS measurement T of the mixed water of the total waterway 10 is measured a plurality of times by the third TDS detection part 43 within a set time 3c And calculate the average value
Judging->
Whether or not at T 3s In the range of b, where b is the set value 15, if in the range, the adjustment process is completed, and if not in the range, the above operation is repeated from step S2. For example: the mixing of the total waterway 10 is measured multiple times within 3 minutes by the third TDS sensing element 43TDS measurement T of water combination 3c And calculating the average +.>
Judging->
Whether it is within 150.+ -.15.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (10)
1. A TDS adjustment method, characterized by: comprising the following steps:
s1: setting a first waterway, a second waterway and a total waterway, wherein the first waterway and the second waterway are respectively used for conveying tap water and RO water to the total waterway, and the total waterway is used for outputting mixed water obtained by mixing the tap water and the RO water;
s2: measuring TDS value T of tap water of first waterway 1 TDS value T of RO water of second waterway 2 Measuring the flow F of RO water in the second waterway 2 ；
S3: setting TDS target value T of mixed water of total waterway 3s Obtaining the flow F of tap water of the first waterway according to a calculation formula 1 The calculation formula is as follows: f1 =f 2 ×(T 3s -T 2 )/(T 1 -T 3s ) Controlling the flow of tap water of the first waterway to F 1 And finishing the adjustment process.
2. The TDS adjustment method according to claim 1, characterized in that: in S3, a TDS target value T of the mixed water of the total waterway is set 3s After that, T is regulated according to the fluctuation of the TDS season of the inflow water 3s To T 3j Obtaining the flow F of tap water in the first waterway according to a calculation formula 1 The calculation formula is as follows: f1 =f 2 ×(T 3j -T 2 )/(T 1 -T 3j )。
3. The TDS adjustment method according to claim 2, characterized in that: adjusting T according to incoming water TDS seasonal fluctuations 3s To T 3j The process of (1) comprises: measuring the TDS value T of tap water of a first waterway daily before making an adjustment 1 And calculate the average value A 1 According to A 1 Numerical value size adjustment T of (2) 3s To a different T 3j 。
4. A TDS adjustment method according to claim 3, characterized in that: according to A 1 Numerical value size adjustment T of (2) 3s To a different T 3j Comprising the following steps:
(1) When A is 1 When less than 200, T is regulated 3s To T 3j 1 ；
(2) When A1 is more than or equal to 200 and less than 300, T is regulated 3s To T 3j 2 ；
(3) When 300 is less than or equal to A 1 When less than 500, T is regulated 3s To T 3j 3 ；
(4) When 500 is less than or equal to A 1 When less than 800, T is regulated 3s To T 3j 4 ；
(5) When A is 1 When not less than 800, adjust T 3s To T 3j 5 ；
Wherein: t (T) 3j 1 ≤T 3j 2 ≤T 3j 3 ≤T 3j 4 ≤T 3j 5 And T is 3j 5 ≤200。
5. The TDS adjustment method according to claim 1, characterized in that: in S3, controlling the flow rate of tap water in the first waterway to F 1 When the flow rate of the tap water in the first waterway is controlled to be the maximum value, the maximum value is still smaller than F 1 Then adjust the flow rate F of RO water of the second waterway 2 。
6. The method according to claim 1The TDS regulating method is characterized in that: in S3, controlling the flow rate of tap water in the first waterway to F 1 Then, TDS measurement T of the mixed water of the total waterway is measured 3c Judgment of T 3c Whether the set condition is satisfied, and if the set condition is satisfied, finishing the adjustment process.
7. The TDS adjustment method according to claim 6, characterized in that: obtaining TDS measurement value T of mixed water of total waterway by multiple measurement within set time 3c And calculate the average value
Judging->
Whether or not at T 3s Within the range of b, where b is the set point 15, if within this range, the adjustment process is completed.
8. An RO water purification system implementing the TDS adjustment method of any one of claims 1 to 7, characterized in that: the system include water route subassembly, filter core subassembly, flow detection subassembly, TDS detection subassembly and valve assembly, water route subassembly include first water route, second water route and total water route, the entry intercommunication of first water route, second water route, the export of first water route, second water route all with the entry intercommunication of total water route, filter core subassembly include the RO filter core, the RO filter core setting be in the second water course, flow detection subassembly include first flow detection spare, TDS detection subassembly include first TDS detection spare, second TDS detection spare and third TDS detection spare, valve assembly include first control valve, second control valve, first TDS detection spare set up the second water course and be located the upper reaches of RO filter core, first flow detection spare, second TDS detection spare and second control valve set up and be located the second water course the low reaches of RO, first TDS detection spare sets up the first water course.
9. The RO water purification system of claim 8, wherein: the filter element assembly also comprises a preposed filter element and a postposed filter element, the preposed filter element is arranged on the second water path and is positioned between the RO filter element and the first TDS detection piece, and the postposed filter element is arranged on the total water path and is positioned at the upstream of the third TDS detection piece; and a conveying pump is further arranged on the second water path between the preposed filter element and the RO filter element.
10. The RO water purification system of claim 8, wherein: the flow detection assembly further comprises a second flow detection piece and a third flow detection piece, wherein the second flow detection piece is arranged on the second water path and is positioned at the upstream of the RO filter element, and the third flow detection piece is arranged on the total water path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310333961.3A CN116375141A (en) | 2023-03-31 | 2023-03-31 | TDS (time Domain reflectometer) adjusting method and RO (reverse osmosis) water purification system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310333961.3A CN116375141A (en) | 2023-03-31 | 2023-03-31 | TDS (time Domain reflectometer) adjusting method and RO (reverse osmosis) water purification system |
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| Publication Number | Publication Date |
|---|---|
| CN116375141A true CN116375141A (en) | 2023-07-04 |
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|---|---|---|---|
| CN202310333961.3A Pending CN116375141A (en) | 2023-03-31 | 2023-03-31 | TDS (time Domain reflectometer) adjusting method and RO (reverse osmosis) water purification system |
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| Country | Link |
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| CN (1) | CN116375141A (en) |
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