CN115475524A - Control method of water purification system and water purification system - Google Patents
Control method of water purification system and water purification system Download PDFInfo
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- CN115475524A CN115475524A CN202210767865.5A CN202210767865A CN115475524A CN 115475524 A CN115475524 A CN 115475524A CN 202210767865 A CN202210767865 A CN 202210767865A CN 115475524 A CN115475524 A CN 115475524A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/12—Controlling or regulating
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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
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/16—Flow or flux control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/25—Recirculation, recycling or bypass, e.g. recirculation of concentrate into the feed
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
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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
- C02F2209/02—Temperature
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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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Abstract
The invention relates to the technical field of water purification, and particularly provides a control method of a water purification system and the water purification system, aiming at solving the problem that the water yield of pure water is reduced due to the reduction of temperature in the existing water purification system. Therefore, the invention provides a control method of a water purification system, wherein the water purification system comprises a booster pump, a filter element, a water inlet pipeline, a concentrated water pipeline and a circulating pipeline; the control method comprises the following steps: during the water purification system executes a water production program, selectively performing at least one of the following operations according to the temperature of water in the water inlet pipeline: increasing the running power of the booster pump; the water flow of the concentrated water pipeline is reduced; the water flow of the circulating pipeline is increased. Through the temperature that obtains the inlet tube to at least one in the operating power of control booster pump, the discharge three of adjusting dense water pipe and circulating line, can increase the raw water flow that gets into the filter core, guarantee the normal pure water output of filter core, promote user experience.
Description
Technical Field
The invention relates to the technical field of water purification, and particularly provides a control method of a water purification system and the water purification system.
Background
The existing water purification system generally uses a reverse osmosis membrane filter element to produce water, and in order to improve the water production efficiency, the water purification system generally is provided with a booster pump to increase the water inlet pressure on one side of a reverse osmosis membrane so as to improve the water production efficiency.
However, the filtering performance of the reverse osmosis membrane filter element is greatly influenced by the temperature, when the water temperature in the water purification system is reduced, although the reverse osmosis membrane keeps fixed water inlet pressure through the booster pump, the pure water yield of the pure water end of the reverse osmosis membrane can be greatly reduced, the water yield of the reverse osmosis membrane filter element is reduced, and the user experience is poor.
Accordingly, there is a need in the art for a new control method of a water purification system to solve the above problems.
Disclosure of Invention
The invention aims to solve the technical problem, namely the problem that the water yield of pure water is reduced due to the reduction of the temperature of a filter element in the conventional water purification system.
In a first aspect, the present invention provides a method for controlling a water purification system, the water purification system comprising a booster pump, a filter element, a water inlet pipeline, a concentrated water pipeline and a circulation pipeline, wherein a water inlet of the booster pump is communicated with the water inlet pipeline, a pure water inlet of the booster pump is communicated with a raw water inlet of the filter element, and a concentrated water inlet of the filter element is communicated with one end of the concentrated water pipeline; one end of the circulating pipeline is communicated with the concentrated water port of the filter element, and the other end of the circulating pipeline is communicated with the water inlet or the pure water port of the booster pump; the control method comprises the following steps: acquiring the temperature of water in the water inlet pipeline in the process of executing a water making program by the water purification system; selectively performing at least one of the following operations depending on the temperature: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; increasing the water flow of the circulation line.
In a preferred embodiment of the above-mentioned control method for a water purification system, "at least one of the following operations is selectively performed according to the temperature: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; the step of increasing the flow rate of water in the circulation line "may specifically include: comparing the temperature with a preset temperature; selectively performing at least one of the following operations according to the comparison result: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; increasing the water flow of the circulation line.
In a preferred embodiment of the above-mentioned control method for a water purification system, "at least one of the following operations is selectively performed according to the comparison result: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; the step of increasing the water flow of the circulation line "specifically includes: if the temperature is less than the preset temperature, calculating a temperature difference between the temperature and the preset temperature; comparing the temperature difference with a preset threshold value; and if the temperature difference is not greater than the preset threshold value, increasing the running power of the booster pump to a first preset power.
In a preferred embodiment of the above-mentioned control method for a water purification system, "at least one of the following operations is selectively performed according to the comparison result: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; the step of increasing the flow rate of water in the circulation line "further comprises: if the temperature difference is larger than the preset threshold value, increasing the running power of the booster pump to a second preset power; wherein the second preset power is greater than the first preset power.
In a preferred embodiment of the above-mentioned control method for a water purification system, "at least one of the following operations is selectively performed according to the comparison result: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; the step of increasing the flow rate of water in the circulation line "further comprises: if the temperature difference is larger than the preset threshold value, increasing the running power of the booster pump to a second preset power, and reducing the water flow of the concentrated water pipeline; wherein the second preset power is greater than the first preset power.
In a preferred embodiment of the above-mentioned control method for a water purification system, "at least one of the following operations is selectively performed according to the comparison result: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; the step of increasing the flow rate of water in the circulation line "further comprises: if the temperature difference is larger than the preset threshold value, increasing the running power of the booster pump to a second preset power, and increasing the water flow of the circulating pipeline; wherein the second preset power is greater than the first preset power.
In a preferred embodiment of the above-mentioned control method for a water purification system, "at least one of the following operations is selectively performed according to the comparison result: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; the step of increasing the flow rate of water in the circulation line "further comprises: if the temperature difference is larger than the preset threshold value, increasing the running power of the booster pump to a second preset power, and reducing the water flow of the concentrated water pipeline and increasing the water flow of the circulating pipeline; wherein the second preset power is greater than the first preset power.
In a preferred technical solution of the above-mentioned control method for a water purification system, a flow control valve is provided in the concentrated water pipeline, and the step of "reducing the flow rate of the concentrated water pipeline" specifically includes: and the water flow of the concentrated water pipeline is reduced by reducing the opening degree of the flow regulating valve.
In a preferred embodiment of the above method for controlling a water purification system, the step of "increasing the flow rate of water in the circulation line" includes: and increasing the water flow of the circulating pipeline by opening the switch valve.
In a second aspect, the invention provides a water purification system comprising a controller configured to be able to perform the method of controlling a water purification system as described above.
As will be appreciated by those skilled in the art, in accordance with the method of the present invention, the temperature of the water in the water inlet line is obtained during the water production process performed by the water purification system; comparing the temperature with a preset temperature; if the temperature is less than the preset temperature, calculating the temperature difference between the temperature and the preset temperature; comparing the temperature difference with a preset threshold value; and if the temperature difference is not greater than the preset threshold value, increasing the running power of the booster pump to a first preset power. If the temperature difference is larger than a preset threshold value, increasing the running power of the booster pump to a second preset power larger than the first preset power; or not only increasing the running power of the booster pump to a second preset power, but also reducing the water flow of the concentrated water pipeline; or not only increasing the running power of the booster pump to a second preset power, but also increasing the water flow of the circulating pipeline; or not only increasing the operating power of the booster pump to a second preset power, but also reducing the water flow of the concentrate line and increasing the water flow of the circulation line. Through such setting, through the temperature that acquires the inlet tube to at least one among the operating power of control booster pump, the discharge three of adjusting dense water pipe and circulation pipeline, the raw water flow that can increase entering filter core guarantees the normal pure water output of filter core, and simultaneously, the discharge of control dense water pipe and circulation pipeline can also improve the reuse of dense water resource, reduces the waste of water resource, promotes user experience.
In addition, the water purification system further provided on the basis of the technical scheme has the technical effects of the control method due to the adoption of the control method, and compared with the existing water purification system, the water purification system can adjust the water production mode according to the temperature so as to ensure the normal pure water yield of the filter element and improve the user experience.
Drawings
Preferred embodiments of the present invention are described below in conjunction with the appended drawings, wherein:
FIG. 1 is a schematic diagram of the water purification system of the present invention;
fig. 2 is a flow chart of main steps of a control method of the water purification system of the present invention;
fig. 3 is a flowchart illustrating the detailed steps of the control method of the water purification system of the present invention.
List of reference numerals:
1. a filter element; 11. a raw water port; 12. a pure water port; 13. a dense water port; 2. a booster pump; 3. a temperature sensor; 4. a flow regulating valve; 5. an on-off valve; 6. a water inlet pipe; 7. a concentrated water pipe; 8. a pure water pipe; 9. a circulation pipe.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms "upper", "lower", "inside", "outside", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that a device or an element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Based on the problem that the pure water yield of a filter element is reduced due to the fact that the temperature of the filter element in the existing water purification system is reduced. The invention provides a control method of a water purification system and the water purification system, and aims to ensure normal pure water yield of a filter element by adjusting the flow of raw water entering a raw water port of the filter element so as to improve user experience.
Specifically, as shown in fig. 1, the water purification system of the present invention includes a booster pump 2, a filter element 1, a water inlet pipeline, a concentrated water pipeline, and a circulation pipeline. The water inlet pipe 6 in the water inlet pipeline is provided with a temperature sensor 3 to obtain the temperature of water in the water inlet pipe 6 by taking the water inlet direction as reference, the water inlet of the booster pump 2 is communicated with the water inlet pipe 6, the filter element 1 is arranged at the downstream of the booster pump 2, a pure water port 12 of the booster pump 2 is communicated with a raw water port 11 of the filter element 1, the pure water port 12 of the filter element 1 is communicated with one end of a pure water pipe 8, a concentrated water port 13 of the filter element 1 is communicated with one end of a concentrated water pipe 7 in the concentrated water pipeline, the concentrated water pipe 7 is provided with a flow regulating valve 4 for regulating the flow of concentrated water, one end of a circulating pipe 9 of the circulating pipe is positioned at the upstream of the flow regulating valve 4 and is communicated with the concentrated water port 13 of the filter element 1, the other end of the circulating pipe 9 is communicated with the pure water port 12 of the booster pump 2, and the circulating pipe 9 is provided with a switch valve 5 for regulating the flow of concentrated water.
Wherein, temperature sensor 3, booster pump 2, flow control valve 4 and ooff valve 5 all are connected with water purification system's controller communication to transmit the temperature value of inlet tube 6 internal water for the controller in time, the controller can be according to this temperature value in order to control booster pump 2, flow control valve 4 and ooff valve 5.
It should be noted that although one end of the circulation pipe 9 in fig. 1 is communicated with the pure water port 12 of the booster pump 2, this should not limit the protection scope of the present invention, and those skilled in the art may also communicate one end of the circulation pipe 9 with the water inlet of the booster pump 2 according to actual needs, as long as the concentrated water of the filter element 1 can be circulated and returned to the raw water port 11 of the filter element 1, and such adjustment and change of the specific connection mode of the circulation pipe should not depart from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.
The invention provides a control method of a water purification system, which comprises the following steps: acquiring the temperature of water in a water inlet pipeline in the process of executing a water making program by a water purifying system; selectively performing, depending on the temperature, at least one of the following operations: the operating power of the booster pump 2 is increased; the water flow of the concentrated water pipeline is reduced; the water flow of the circulating pipeline is increased.
Specifically, as shown in fig. 2, the control method of the present invention includes the steps of:
s100: acquiring the temperature of water in a water inlet pipeline in the process of executing a water making program by a water purifying system;
s200: selectively performing, depending on the temperature, at least one of the following operations: the operating power of the booster pump 2 is increased; the water flow of the concentrated water pipeline is reduced; the water flow of the circulating pipeline is increased.
Wherein, the using temperature range of the filter element 1 of the water purifier is between 5 ℃ and 38 ℃. When the water temperature in the filter element 1 is reduced by 1 ℃, the water yield of the filter element 1 is reduced by about 2 to 5 percent. During the water production process performed by the water purification system, since the water inlet pressure in the water inlet pipe 6 is fixed, that is, the raw water flow entering the raw water port 11 of the filter element 1 is kept constant, the raw water flow passing through the filter element 1 is relatively stable. When the temperature of water in the filter element 1 is lowered, the amount of water entering the raw water port 11 of the filter element 1 is reduced under the same water inlet pressure, and accordingly, the water production flow rate of the pure water port 12 of the filter element 1 is lowered. In view of the above situation, according to the temperature of the water in the water inlet pipe 6, the operation power of the booster pump 2 can be increased to increase the flow rate of the raw water entering the filter element 1, so as to increase the pure water yield of the filter element 1, or when the water inlet flow rate of the raw water port 11 of the filter element 1 is relatively stable, the water flow rate of the concentrated water pipeline can be reduced, so as to increase the pure water yield of the filter element 1, or the water flow rate of the circulating pipe 9 can be increased, so as to re-filter the insufficiently filtered concentrated water, so as to increase the pure water yield of the filter element 1, and finally, the control method can be selected and combined, so that the problem of pure water yield reduction of the filter element 1 after the temperature of the water is reduced can be overcome, the pure water yield of the filter element 1 can be ensured, and the user experience can be improved.
Preferably, in step S200, "at least one of the following operations is selectively performed according to temperature: the operating power of the booster pump 2 is increased; the water flow of the concentrated water pipeline is reduced; the step of increasing the water flow of the circulation pipeline specifically comprises the following steps: comparing the temperature with a preset temperature; selectively performing at least one of the following operations according to the comparison result: the operating power of the booster pump 2 is increased; the water flow of the concentrated water pipeline is reduced; the water flow of the circulating pipeline is increased.
For example, as shown in fig. 3, when the method of step S200 is executed, step S210 is first executed to compare the temperature with a preset temperature. The preset temperature may be a specific value, for example, the preset temperature is 18 ℃, and when the temperature of the water in the water inlet pipe 6 is lower than the preset temperature (18 ℃), the water purification system performs at least one of the operations, or the preset temperature may also be a value range, for example, the preset temperature is 5 ℃ to 16 ℃, and when the temperature of the water in the water inlet pipe 6 is in the range of the preset temperature (18 ℃), the water purification system performs at least one of the operations.
The following describes the specific process of the control method of the present invention in detail with reference to five cases.
First, the preset temperature in the water purification system of the present invention is set to 18 ℃, the preset threshold is set to 5, and the normal operation power of the booster pump 2 is set to 30W.
In a first preferred case, as shown in fig. 3, "at least one of the following operations is selectively performed according to the comparison result: the operating power of the booster pump 2 is increased; the water flow of the concentrated water pipeline is reduced; the step of increasing the water flow rate of the circulation line "comprises:
s220: if the temperature is less than the preset temperature, calculating the temperature difference between the temperature and the preset temperature;
s230: comparing the temperature difference with a preset threshold value;
s241: and if the temperature difference is not greater than the preset threshold value, increasing the operating power of a booster pump 2 of the water purification system to a first preset power.
Illustratively, when the temperature of the water in the water inlet pipe 6 in the water purification system falls to 14 ℃, which is lower than the preset temperature (18 ℃), the temperature difference between the temperature (14 ℃) and the preset temperature (18 ℃) is 4, and the temperature difference (4) is not greater than the preset threshold value (5), the operating power of the booster pump 2 is adjusted to be increased to the first preset power, which is set to 32W.
In this case, the water purification system has a relatively small descending range of the flow rate of the raw water entering the filter element 1, and the descending flow rate of the raw water can be compensated by only correspondingly adjusting and increasing the operating power of the booster pump 2 to the first preset power, so as to maintain the normal pure water yield of the filter element 1.
In a second preferred case, as shown in fig. 3, "at least one of the following operations is selectively performed according to the comparison result: the operating power of the booster pump 2 is increased; the water flow of the concentrated water pipeline is reduced; the step of increasing the flow rate of water in the circulation line "further comprises:
s242: if the temperature difference is greater than the preset threshold value, increasing the operating power of the booster pump 2 to a second preset power; the second preset power is larger than the first preset power.
Illustratively, when the temperature of the water in the water inlet pipe 6 in the water purification system is decreased to 12 ℃, the temperature difference between the temperature (12 ℃) and the preset temperature (18 ℃) is 6, and the temperature difference (6) is greater than the preset threshold (5), at this time, the operation power of the booster pump 2 of the water purification system is increased to the second preset power, and the second preset power is set to 34W.
In this case, the water purification system has a relatively large decrease range of the flow rate of the raw water entering the filter element 1, and maintains the operation power of the booster pump 2 at the first preset power that cannot satisfy the flow rate of the raw water entering the filter element 1. At this moment, the water purification system needs the operating power of the booster pump 2 to be increased to a second preset power larger than the first preset power so as to compensate the reduced raw water flow of the filter element 1 and further ensure the normal pure water yield of the filter element 1.
In a third preferred case, as shown in fig. 3, "at least one of the following operations is selectively performed according to the comparison result: the operating power of the booster pump 2 is increased; the water flow of the concentrated water pipeline is reduced; the step of increasing the flow rate of water in the circulation line "further comprises:
s243: if the temperature difference is larger than a preset threshold value, increasing the operating power of the booster pump 2 to a second preset power, and reducing the water flow of the concentrated water pipeline; the second preset power is larger than the first preset power.
Illustratively, when the temperature of the water in the water inlet pipe 6 in the water purification system is reduced to 10 ℃, the temperature difference between the temperature (10 ℃) and the preset temperature (18 ℃) is 8, and the temperature difference (8) is greater than the preset threshold value (5), at this time, the operation power of the booster pump 2 is increased to a second preset power, the second preset power is set to 36W, and the flow regulating valve 4 is adjusted so that the water flow rate flowing out of the concentrate pipe 7 is reduced to 3/4 of the original water flow rate.
In this case, although the pure water yield of the filter cartridge 1 can be secured by operating the booster pump 2 of the water purification system at the second preset power (36W), the concentrated water yield of the filter cartridge 1 is also increased simultaneously. Under normal circumstances, assuming that the ratio of produced pure water to concentrate is about 1. In the case where the filter cartridge 1 produces 1 liter of pure water while the booster pump 2 is operated at the above-described second operation power (36W), the filter cartridge 1 produces about 4 liters of concentrated water at the same time. Therefore, under the above situation, the water consumption of the filter element 1 is too large, and the cost performance of water production is reduced. When the water flow rate of the concentrated water pipe 7 is controlled to be reduced to 3/4 of the original water flow rate, and the filter element 1 generates 1 liter of pure water, the filter element 1 simultaneously generates about 3 liters of concentrated water. Therefore, the yield of the concentrated water is controlled by adjusting the water flow of the concentrated water pipe 7, the waste of water resources can be reduced, and meanwhile, the water flow of the pure water port 12 is correspondingly increased due to the reduction of the concentrated water flow flowing out of the concentrated water pipe 7, so that the pure water yield of the filter element 1 is accelerated.
In a fourth preferred case, as shown in fig. 3, "at least one of the following operations is selectively performed according to the comparison result: the operating power of the booster pump 2 is increased; the water flow of the concentrated water pipeline is reduced; the step of increasing the flow rate of water in the circulation line "further comprises:
s244: if the temperature difference is greater than a preset threshold value, increasing the operating power of the booster pump 2 to a second preset power, and increasing the water flow of the circulating pipeline; the second preset power is larger than the first preset power.
Illustratively, when the temperature of the water in the water inlet pipe 6 in the water purification system is reduced to 8 ℃, the temperature difference between the temperature (8 ℃) and the preset temperature (18 ℃) is 10, the temperature difference (10) is greater than the preset threshold value (5), at this time, the operation power of the booster pump 2 is increased to the second preset power 36W, after the switch valve 5 is opened, a part of the concentrated water (for example, 1/3 of the outflow amount of the concentrated water port 13) flowing out of the concentrated water port 13 flows back to the filter element 1 through the circulation pipe 9 for secondary filtration.
In the water purification system, without using the third preferred method for adjusting the water flow in the concentrated water pipe 7, the control method of the present invention can also open the on-off valve 5 to make part of the concentrated water flow back to the raw water port 11 of the filter element 1 through the circulation pipe 9, so that the filter element 1 performs secondary filtration on primary concentrated water which is not sufficiently filtered to increase the pure water yield, accordingly, the discharge amount of the concentrated water of the filter element 1 is reduced, and the water resource is saved.
In a fifth preferred case, as shown in fig. 3, "at least one of the following operations is selectively performed according to the comparison result: the operating power of the booster pump 2 is increased; the water flow of the concentrated water pipeline is reduced; the step of increasing the flow rate of water in the circulation line "further comprises:
s245: if the temperature difference is greater than the preset threshold value, increasing the operating power of the booster pump 2 to a second preset power, and reducing the water flow of the concentrated water pipeline and increasing the water flow of the circulating pipeline; the second preset power is larger than the first preset power.
Illustratively, as shown in fig. 3, when the temperature of the water in the water inlet pipe 6 in the water purification system is reduced to 8 ℃, the temperature difference between the temperature (8 ℃) and the preset temperature (18 ℃) is 10, the temperature difference (10) is greater than the preset threshold value (5), at this time, the operation power of the booster pump 2 is increased to the second preset power 36W, the flow regulating valve 4 is adjusted to reduce the water flow out of the concentrated water pipe 7 to 1/2 of the original water flow, and after the on-off valve 5 is opened, the concentrated water flow of the circulating pipe 9 reaches 1/2 of the flow of the concentrated water pipe 7.
In a third preferred case, the booster pump 2 of the water purification system is operated at the second preset power (36W) to maintain the pure water production of the filter element 1, and if the water flow rate of the concentrate pipe 7 is further reduced, the high-speed water flow entering the filter element 1 may disable the reverse osmosis membrane filtration function of the filter element 1, resulting in rejection of the filter element 1. Therefore, in the water purification system, when the water flow of the concentrated water pipe 7 is reduced and the switching valve 5 is opened, and concentrated water flows back to the filter element 1 through the circulating pipe 9, the excessive pressure difference between the raw water port 11 and the pure water port 12 of the filter element 1 is relieved, the concentrated water flows back to the filter element 1 for secondary filtration, the failure of the filtration function caused by the rupture of the reverse osmosis membrane in the filter element 1 is avoided, and the service life of the filter element 1 is prolonged.
Preferably, a flow regulating valve 4 is arranged in the concentrated water pipeline, and the step of reducing the water flow of the concentrated water pipeline specifically comprises the following steps: the flow rate of the concentrate line is reduced by reducing the opening of the flow regulating valve 4.
Illustratively, the flow control valve 4 is set as a solenoid valve having two control positions, and the flow control valve 4 is set as two control positions, and the first control position and the second control position of the flow control valve 4 correspond to the opening ratio 3, 4, 1.
The controller in the water purification system can select different gears according to different use situations so as to adjust the flow of the outflow concentrated water pipeline. For example, in the third preferred case, the flow rate of water flowing out of the concentrate pipe 7 can be reduced to 3/4 of the original flow rate by the controller placing the flow regulating valve 4 in the first gear. In the fifth preferred case, the flow rate of water flowing out of the concentrate pipe 7 can be reduced to 1/2 of the original flow rate of water by the controller placing the flow regulating valve 4 in the second gear.
It should be noted that the above-described setting of the flow rate adjustment valve 4 is not limited, and the flow rate adjustment valve 4 may be a solenoid valve having a continuous opening, and when adjusting the flow rate adjustment valve 4, the flow rate adjustment valve 4 may be controlled within a set opening range.
Preferably, the circulation pipeline is provided with a switch valve 5, and the step of increasing the water flow of the circulation pipeline specifically comprises the following steps: the water flow rate of the circulation line is increased by opening the on-off valve 5.
The on-off valve 5 is illustratively a solenoid valve, which includes both open and closed states. In the above-mentioned fourth preferred case and in the above-mentioned fifth preferred case, the water flow of the circulation duct 9 can be increased by the controller controlling to open the electromagnetic valve.
The circulation pipe 9 may be provided with a flow rate control valve 4 for controlling the flow rate in the circulation pipe, or the opening/closing valve 5 may be provided with an opening/closing valve 5 for adjusting the opening degree, which enables control of the flow rate of water in the circulation pipe.
Finally, it should be noted that the setting and selection of the first preset power, the second preset power, the temperature, the preset threshold value and the related values are only to illustrate the operation process and principle of the control method, and in practical applications, a person skilled in the art may flexibly adjust and set the specific values or value ranges of the parameters to meet the actual needs according to the specific use environment.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is apparent to those skilled in the art that the scope of the present invention is not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. A control method of a water purification system is characterized in that the water purification system comprises a booster pump, a filter element, a water inlet pipeline, a concentrated water pipeline and a circulating pipeline,
the water inlet of the booster pump is communicated with the water inlet pipeline, the water outlet of the booster pump is communicated with the raw water port of the filter element, the concentrated water port of the filter element is communicated with one end of the concentrated water pipeline, one end of the circulating pipeline is communicated with the concentrated water port of the filter element, and the other end of the circulating pipeline is communicated with the water inlet or the water outlet of the booster pump;
the control method comprises the following steps:
acquiring the temperature of water in the water inlet pipeline in the process of executing a water making program by the water purification system;
selectively performing at least one of the following operations depending on the temperature: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; increasing the water flow of the circulation line.
2. The control method of a water purification system according to claim 1, wherein at least one of the following operations is selectively performed according to the temperature: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; the step of increasing the water flow of the circulation line "specifically includes:
comparing the temperature with a preset temperature;
selectively performing at least one of the following operations according to the comparison result: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; increasing the water flow of the circulation line.
3. The control method of a water purification system according to claim 2, wherein at least one of the following operations is selectively performed according to the comparison result: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; the step of increasing the water flow of the circulation line "specifically includes:
if the temperature is less than the preset temperature, calculating a temperature difference between the temperature and the preset temperature;
comparing the temperature difference with a preset threshold value;
and if the temperature difference is not greater than the preset threshold value, increasing the running power of the booster pump to a first preset power.
4. The control method of a water purification system according to claim 3, wherein at least one of the following operations is selectively performed according to the comparison result: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; the step of increasing the flow rate of water in the circulation line "further comprises:
if the temperature difference is larger than the preset threshold value, increasing the running power of the booster pump to a second preset power;
wherein the second preset power is greater than the first preset power.
5. The control method of a water purification system according to claim 3, wherein at least one of the following operations is selectively performed according to the comparison result: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; the step of increasing the flow rate of water in the circulation line "further comprises:
if the temperature difference is larger than the preset threshold value, increasing the running power of the booster pump to a second preset power, and reducing the water flow of the concentrated water pipeline;
wherein the second preset power is greater than the first preset power.
6. The control method of a water purification system according to claim 3, wherein at least one of the following operations is selectively performed according to the comparison result: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; the step of increasing the flow rate of water in the circulation line "further comprises:
if the temperature difference is larger than the preset threshold value, increasing the running power of the booster pump to a second preset power, and increasing the water flow of the circulating pipeline;
wherein the second preset power is greater than the first preset power.
7. The control method of a water purification system according to claim 3, wherein at least one of the following operations is selectively performed according to the comparison result: increasing the operating power of the booster pump; reducing the water flow of the concentrated water pipeline; the step of increasing the flow rate of water in the circulation line "further comprises:
if the temperature difference is larger than the preset threshold value, increasing the running power of the booster pump to a second preset power, and reducing the water flow of the concentrated water pipeline and increasing the water flow of the circulating pipeline;
wherein the second preset power is greater than the first preset power.
8. The control method of the water purification system according to any one of claims 1 to 3, 5 and 7, wherein a flow regulating valve is disposed in the concentrate line, and the step of reducing the flow rate of the concentrate line specifically comprises:
and the water flow of the concentrated water pipeline is reduced by reducing the opening degree of the flow regulating valve.
9. The control method of the water purification system according to any one of claims 1 to 3, 6 and 7, wherein a switch valve is disposed in the circulation line, and the step of increasing the flow rate of water in the circulation line specifically comprises:
the water flow rate of the circulation line is increased by opening the on-off valve.
10. A water purification system comprising a controller, characterized in that the controller is configured to be able to perform the control method of the water purification system of any one of claims 1 to 9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115771976A (en) * | 2022-12-22 | 2023-03-10 | 珠海格力电器股份有限公司 | Water purification equipment and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186394A (en) * | 2016-07-21 | 2016-12-07 | 佛山市美的清湖净水设备有限公司 | Reverse osmosis system, control method thereof and water purifying and drinking machine with reverse osmosis system |
| CN108619912A (en) * | 2017-03-22 | 2018-10-09 | 佛山市顺德区美的饮水机制造有限公司 | Purifier and water purifier |
| CN110404414A (en) * | 2018-04-27 | 2019-11-05 | 青岛经济技术开发区海尔热水器有限公司 | A kind of water purifier control method and water purifier |
| JP2020163254A (en) * | 2019-03-28 | 2020-10-08 | 栗田工業株式会社 | Pure water production device and pure water production method |
| CN112520817A (en) * | 2020-12-18 | 2021-03-19 | 珠海格力电器股份有限公司 | Reverse osmosis water purification system control method and device and reverse osmosis water purification system |
-
2022
- 2022-06-30 CN CN202210767865.5A patent/CN115475524A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186394A (en) * | 2016-07-21 | 2016-12-07 | 佛山市美的清湖净水设备有限公司 | Reverse osmosis system, control method thereof and water purifying and drinking machine with reverse osmosis system |
| CN108619912A (en) * | 2017-03-22 | 2018-10-09 | 佛山市顺德区美的饮水机制造有限公司 | Purifier and water purifier |
| CN110404414A (en) * | 2018-04-27 | 2019-11-05 | 青岛经济技术开发区海尔热水器有限公司 | A kind of water purifier control method and water purifier |
| JP2020163254A (en) * | 2019-03-28 | 2020-10-08 | 栗田工業株式会社 | Pure water production device and pure water production method |
| CN112520817A (en) * | 2020-12-18 | 2021-03-19 | 珠海格力电器股份有限公司 | Reverse osmosis water purification system control method and device and reverse osmosis water purification system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115771976A (en) * | 2022-12-22 | 2023-03-10 | 珠海格力电器股份有限公司 | Water purification equipment and control method thereof |
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