CN117417007A - Water purification system, water production control method for water purification system, and storage medium - Google Patents
Water purification system, water production control method for water purification system, and storage medium Download PDFInfo
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- CN117417007A CN117417007A CN202311610571.2A CN202311610571A CN117417007A CN 117417007 A CN117417007 A CN 117417007A CN 202311610571 A CN202311610571 A CN 202311610571A CN 117417007 A CN117417007 A CN 117417007A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 375
- 238000000746 purification Methods 0.000 title claims abstract description 41
- 238000003860 storage Methods 0.000 title claims abstract description 17
- 238000000195 production control method Methods 0.000 title claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims abstract description 60
- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000001276 controlling effect Effects 0.000 claims abstract description 8
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 239000012528 membrane Substances 0.000 claims description 57
- 239000008213 purified water Substances 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000002351 wastewater Substances 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000004422 calculation algorithm Methods 0.000 description 5
- 235000020188 drinking water Nutrition 0.000 description 5
- 239000003651 drinking water Substances 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000035622 drinking Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000009285 membrane fouling Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- 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
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F2209/40—Liquid flow rate
-
- 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
- C02F2209/44—Time
- C02F2209/445—Filter life
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Nanotechnology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to the technical field of water purification, and discloses a water purification system, a water production control method of the water purification system and a storage medium, wherein the water purification system comprises a raw water port; the water making branch pipelines are respectively connected with the raw water port and are connected in parallel, a first filter element and a second filter element are connected in series on each water making branch pipeline, and the second filter element is positioned at the downstream of the first filter element; the flow regulating device is arranged on the water production branch pipeline; the pressure sensor is arranged on the water production branch pipeline and is arranged at the upstream of the water inlet of the second filter element, and the pressure sensor is suitable for detecting the pressure of the water inlet of the second filter element and sending pressure information; and the controller is in communication connection with the pressure sensor and the flow regulating device respectively, and is suitable for controlling the flow regulating device to regulate the flow of water entering a plurality of different water making branch pipelines according to the pressure information sent by the pressure sensor, so that the synchronous failure of filter elements with different service lives can be realized, the later maintenance is convenient, and the replacement cost of the filter elements is saved.
Description
Technical Field
The invention relates to the technical field of water purification systems, in particular to a water purification system, a water production control method of the water purification system and a storage medium.
Background
The water purifier can purify tap water through the purification filter element so as to achieve the purpose of purifying water.
In the related art, in order to achieve a larger flow of purified water or other small flow of water with a larger flow requirement, a water purifier usually adopts a plurality of small flow filter elements to be used in parallel. However, the service life of different filter elements on the parallel water path is different, so that the problem of core replacement is caused, and if one filter element fails, the other filter element is replaced synchronously, so that the cost of replacing the filter elements is wasted. If one filter element is invalid, the other filter element is replaced when the other filter element is invalid, and the filter element is replaced for a plurality of times, so that the filter element replacement cost is increased, and inconvenience is brought to later maintenance.
Disclosure of Invention
In view of the above, the present invention provides a water purification system to solve the problem of asynchronous failure of multiple parallel filter elements in the prior art.
In one aspect, the present invention provides a water purification system comprising:
a raw water gap;
the water making branch pipelines are respectively connected with the raw water port and are connected in parallel, a first filter element and a second filter element are connected in series on each water making branch pipeline, and the second filter element is positioned at the downstream of the first filter element;
the flow regulating device is arranged on the water production branch pipeline;
the pressure sensor is arranged on the water production branch pipeline and is arranged at the upstream of the water inlet of the second filter element, and the pressure sensor is suitable for detecting the pressure of the water inlet of the second filter element and sending pressure information;
and the controller is in communication connection with the pressure sensor and the flow regulating device respectively, and is suitable for controlling the flow regulating device to regulate the flow of water entering different water making branch pipelines according to the pressure information sent by the pressure sensor.
The filter core replacement device has the beneficial effects that through combining parameters of the membrane front pressure sensor of the first filter core on different water making branch pipes, the flow adjusting device is adjusted through a specific algorithm to adjust the water inflow flow ratio of the branch pipes, so that the membrane front pressure of the first filter core is the same, the synchronous failure of filter cores with different service lives can be finally realized, the later maintenance is convenient, and the filter core replacement cost is saved.
In an alternative embodiment, the flow regulating device comprises a diverter valve having a water inlet port and a plurality of water outlet ports, the water inlet port being connected to the water inlet port, each of the water outlet ports being connected to a corresponding water inlet port of the first filter element, and the diverter valve being in communication with the controller.
The water distribution valve has the beneficial effects that after raw water enters the water inlet of the distribution valve, the flow of the water outlet of the distribution valve is regulated according to the control instruction of the pressure before the die of the controller, so that the distribution valve can distribute water with different sizes to enter the corresponding water making branch pipeline. The flow entering different water making branch pipelines is regulated through the flow dividing valve, so that different water quantities required can be accurately controlled.
In an alternative embodiment, the flow regulating device further comprises a flow regulating valve, wherein the flow regulating valve is arranged on at least one water making branch pipeline and is suitable for regulating the flow entering the water inlet of the first filter element, and the flow regulating valve is in communication connection with the controller.
The flow regulating valve has the beneficial effects that the flow regulating valve can automatically regulate the flow of water according to the control instruction of the pressure in front of the membrane sent by the controller, and the purpose of regulating the flow of water entering different water making branch pipelines is achieved by regulating the flow on one water making branch pipeline.
In an alternative embodiment, the flow regulating device further comprises a water delivery pump, the water delivery pump is in communication connection with the controller, and the controller is suitable for controlling the output power of the water delivery pump according to the pressure information of the water inlet of the first filter element so as to regulate the flow of water delivered by the water delivery pump to the water inlet of the first filter element.
The beneficial effects are that, the output of water delivery pump is different, and the size of the flow of the water that the drainage pump can output is also different. The output power of the water delivery pump is regulated to regulate the flow of the output water, so that the setting of a flow regulating valve or a flow dividing valve can be saved, and the water delivery pump can replace the flow regulating valve and the throttle valve.
In an alternative embodiment, the first filter element comprises a first filter element having a first water inlet connected to the raw water inlet, and the pressure sensor is provided at the first water inlet.
In an alternative embodiment, the first filter element further comprises a second filter element, the first filter element further comprises a first water outlet, the second filter element comprises a second water inlet and a second water outlet, the first water outlet is connected with the water inlet of the second filter element, the second water inlet is connected with the water outlet of the second filter element, and the second water outlet is suitable for discharging purified water.
On the other hand, the invention also provides a water production control method of the water purification system, which comprises the following steps:
acquiring pre-membrane pressure information of a second filter element on different water making branch pipes;
and controlling a flow regulating device to regulate the flow of raw water entering the first filter element according to the pre-membrane pressure information.
The filter core replacement device has the beneficial effects that through combining parameters of the membrane front pressure sensor of the first filter core on different water making branch pipes, the flow adjusting device is adjusted through a specific algorithm to adjust the water inflow flow ratio of the branch pipes, so that the membrane front pressure of the first filter core is the same, the synchronous failure of filter cores with different service lives can be finally realized, the later maintenance is convenient, and the filter core replacement cost is saved.
In an alternative embodiment, the flow regulating device is controlled to regulate the flow of raw water entering the first filter element according to the pre-membrane pressure information, and specifically comprises:
calculating the pressure difference before the membrane of the second filter element of different water making branch pipelines;
and if the pressure difference before the membrane is larger than a preset pressure value, adjusting the flow regulating device to enter the corresponding first filter element in different water inlet proportions.
In an alternative embodiment, if the pressure difference before the membrane is greater than a preset pressure value, the flow regulating device is regulated to enter the corresponding first filter element with different water inlet proportions, and specifically includes: the controller adjusts the opening and closing degree of the flow regulating device to adjust the water inlet proportion of the water making branch pipeline with high pressure and adjust the water inlet proportion of the water making branch pipeline with low pressure, so that the pressure difference in front of the membrane is smaller than a preset pressure value.
In another aspect, there is also provided a storage medium storing a computer program which, when executed by a processor, implements the steps of the water production control method of the water purification system of any one of the above.
The storage medium is used for executing the water production control method of the water purification system, so that the storage medium has all the beneficial effects of the water production control method of the water purification system and is not repeated herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a water purification system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating the operation of another water purification system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating operation of a water purification system according to an embodiment of the present invention;
fig. 4 is a control block diagram of a water purification system according to an embodiment of the present invention;
fig. 5 is a flowchart of a water production control method of a water purification system according to an embodiment of the present invention.
Reference numerals illustrate:
100. a water purification system;
110. a raw water gap;
120. a water making branch pipeline;
130. a first filter element;
1301. a first water inlet;
1302. a first water outlet;
1303. a second water inlet;
1304. a second water outlet;
140. a pressure sensor;
150. a flow rate adjusting device;
151. a diverter valve; 152. a flow regulating valve;
160. a second filter element;
171. a one-way valve; 172. a water inlet valve; 173. a waste water electromagnetic valve;
180. a pressure stabilizing pump;
190. and a pressure barrel.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. 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.
Along with the improvement of the health and safety requirements of users on drinking water, the water purifier is favored by the vast users. The water purifier can purify tap water through the purification filter element so as to achieve the purpose of purifying water. The small-flow water purifier has the advantages of low water making speed, long water receiving waiting time of a user and poor user experience; the large-flow water purifier is a development trend of industry and can realize instant preparation and instant drinking. At present, the maximum flow of a single filter element in the industry is 1200G, and in order to realize the flow requirements of water purification with larger flow or other small flows, a plurality of small-flow filter elements are commonly used in parallel in the industry. However, the service life of different filter elements on the parallel water path is different, so that the problem of core replacement is caused, and if one filter element fails, the other filter element is replaced synchronously, so that the cost of replacing the filter elements is wasted. If one filter element is invalid, the other filter element is replaced when the other filter element is invalid, and the filter element is replaced for a plurality of times, so that the filter element replacement cost is increased, and inconvenience is brought to later maintenance. Therefore, it is necessary to find a method for achieving the synchronous failure of the filter element.
The service life of the filter element is related to the filtered water quality, the water making time, the water making flow and the like. The water quality filtered by the parallel filter element is the same as the water making time, the service life of the filter element is related to the water making flow, and the service life of the filter element is longer when the flow is smaller; the greater the flow rate, the more membrane fouling is accelerated, resulting in a shorter cartridge life. For filter elements with different flux, if the water yield per unit time, unit area and unit pressure are the same, the filter element design is different in membrane area.
When two different filter elements are used in parallel, the water quantity in unit area through the two filter elements is the same under the same pressure, namely the pollution load in unit area of the two filter elements is the same, the service lives of the filter elements are the same, and synchronous failure can be realized; if the front pressure of the filter element membranes is different, the water passing through the unit area of the high pressure is larger, namely the membrane pollution load is more serious, the service lives of the filter elements are shorter, and the service lives of the two filter elements are different.
For the analysis, if the front pressure of two parallel filter element films is the same, the synchronous failure of different filter elements can be realized.
In the related art, the existing filter life calculation method is mainly determined according to the operation time of the pump, the total water consumption, and the like. For example, CN105692732a proposes a method and apparatus for adjusting the life of a filter element of a water purifier, which adjusts the maximum value of the life of the filter element by detecting the effective TDS value and the water production time before the membrane, reflecting the real life of the filter element to save the replacement cost, but only describes a method for detecting the life of the filter element. CN205990287U proposes a water purifying device, which determines the blocking condition of the filter element by detecting the pressure difference of the water inlet and outlet of the filter element, so as to determine the service life of the filter element, but it also only introduces a method for detecting the service life of the filter element.
Through the analysis, the method is an important breakthrough if a feasible technical scheme can be provided for adjusting the load of the filter element to realize synchronous failure of different filter elements. The technical scheme aims at providing a method for adjusting the service life of a filter element of a water purifier, and solves the problem of frequent core replacement caused by different service life periods of different filter elements.
Embodiments of the present invention are described below with reference to fig. 1 to 5.
As shown in fig. 1 and 2, according to an aspect of the present invention, there is provided a water purification system 100, the water purification system 100 including: the water treatment device comprises a raw water inlet 110, a plurality of water making branch pipelines 120, a flow regulating device 150, a pressure sensor 140 and a controller, wherein the water making branch pipelines 120 are respectively connected with the raw water inlet 110, the water making branch pipelines 120 are connected in parallel, a first filter element 130 and a second filter element 160 are connected to each water making branch pipeline 120 in series, the second filter element 160 is positioned at the downstream of the first filter element 130, the flow regulating device 150 is arranged on the water making branch pipelines 120, the pressure sensor 140 is arranged at the upstream of a water inlet of the second filter element 160, the pressure sensor 140 is suitable for detecting the pressure of the water inlet of the second filter element 160 and sending pressure information, the controller is respectively connected with the pressure sensor 140 and the flow regulating device 150 in a communication mode, and the controller is suitable for controlling the flow regulating device 150 to regulate the flow of water entering the different water making branch pipelines 120 according to the pressure information sent by the pressure sensor 140.
The raw water port 110 is used for delivering raw water to purify the raw water.
The first filter cartridge 130 described above may be a composite filter cartridge. The inflow water flows out from the raw water inlet 110 and then enters the first filter element 130 through the first water inlet 1301, the first filter element 130 performs preliminary filtration on the raw water, and the water after preliminary filtration flows out through the first water outlet 1302 and then enters the water making branch pipeline 120, so that further purification can be completed.
The water making branch pipes 120 are connected to the raw water inlet 110, so that the water making of the water making branch pipes 120 can be completed synchronously, and the water making efficiency can be improved. Wherein the water making flow of each water making branch pipe 120 can be consistent.
The second water inlet 1303 of the first filter element 130 is used for accessing pure water, the pure water enters the first filter element 130 to further filter the first filter element 130, and the further filtered water flows out through the second water outlet 1304 and enters the pressure barrel 190 to be stored.
The controller 200 has a control program for running the whole machine, and the controller 200 can also control the opening of the pressure stabilizing pump 180, the starting and stopping of the water inlet electromagnetic valve of the water purifying system 100, the starting and stopping time of the wastewater control valve and the like, so that the functions of whole machine water making, flushing, drinking water supply, filter element load adjustment and the like can be realized.
The water enters the second filter element 160 through the water inlet electromagnetic valve after being treated by the first filter element 130, the second filter element 160 is an advanced treatment module, for example, an RO membrane filter element, the wastewater generated by the advanced treatment module is discharged through the wastewater electromagnetic valve 173, and the pure water further treated by the advanced treatment module enters the first filter element 130 through the one-way valve 171 and is supplied to a user for drinking.
The RO membrane filter core is provided with pure water and 2 outlets of a concentrated water port, wherein the concentrated water is discharged through a waste water electromagnetic valve 173, and the pure water enters the rear carbon rod filter core of the PCB filter core through a one-way valve 171 for post-treatment.
The water outlet end of the PCB filter element is connected with a pure water storage part, namely a pressure barrel 190 for storage so as to be used for water taking by a user.
Wherein, each water making branch pipeline 120 is provided with a first filter core 130, and the controller controls the flow regulating device 150 to regulate the flow of water entering each first filter core 130, so that the pressure in front of the membranes of the first filter cores 130 is the same.
It can be understood that, in combination with the parameters of the pressure sensor 140 before the membrane of the first filter element 130 on the branch pipeline 120 for different water production, the flow adjusting device 150 is adjusted by a specific algorithm to adjust the inflow flow ratio of the branch, so that the pressure before the membrane of the first filter element 130 is the same, and finally, the synchronous failure of the filter elements with different service lives can be realized.
In another embodiment, the flow regulating device 150 includes a diverter valve 151, the diverter valve 151 having a water inlet valve 172 and a plurality of water outlet ports, the water inlet valve 172 being connected to the water inlet, each water outlet port being connected to the water inlet of a corresponding first filter cartridge 130, and the diverter valve 151 being communicatively connected to the controller.
Wherein the diverter valve 151 can divert incoming raw water.
The number of the water outlet ports of the diverter valve 151 is the same as that of the water making branch pipelines 120, and the controller can control the flow of the entering water by adjusting the opening and closing degree of the diverter valve 151, so that the structure is simple and reliable.
In this embodiment, the diverter valve 151 has one water inlet and two water outlets, and of course, the diverter valve 151 may also have a corresponding number of water outlets according to the number of the water making branch pipes 120.
The flow regulating device 150 further comprises a flow regulating valve 152, the flow regulating valve 152 is arranged on the at least one water making branch pipeline 120, and the flow regulating valve 152 is suitable for regulating the flow entering the water inlet of the first filter element 130, and the flow regulating valve 152 is in communication connection with the controller.
The flow regulating device 150 further comprises a water pump in communication with the controller, the controller being adapted to control the output power of the water pump according to the pressure information of the water inlet of the first filter element 130 to regulate the flow of water from the water pump to the water inlet of the first filter element 130.
It is understood that the output power of the water delivery pump is different, and the flow rate of water which can be output by the drainage pump is also different.
By adjusting the output power of the water pump to adjust the flow rate of the output water, the flow rate adjusting valve 152 or the diverter valve 151 can be saved, so that the water pump can replace the flow rate adjusting valve 152 and the throttle valve.
The first filter cartridge 130 includes a first filter cartridge having a first water inlet 1301, the first water inlet 1301 being connected to the raw water inlet 110, and the pressure sensor 140 being provided at the first water inlet 1301.
The first filter element 130 further comprises a second filter element, the first filter element further comprises a first water outlet 1302, the second filter element comprises a second water inlet 1303 and a second water outlet 1304, the first water outlet 1302 is connected with the water inlet of the second filter element 160, the second water inlet 1303 is connected with the water outlet of the second filter element 160, and the second water outlet 1304 is suitable for discharging purified water.
The first filter cartridge 130 described above may be a pretreatment module.
The pretreatment module can realize preliminary filtration to remove sediment, rust, suspended matters, colloid matters, residual chlorine and the like in water so as to realize pollutants. The pretreatment module can be in a combined or composite form of a primary filter element and an active carbon filter element, wherein the primary filter element is a PP cotton filter element, an ultrafiltration filter element and the like, and the active carbon filter element is a granular active carbon, a carbon fiber or carbon rod filter element and the like.
The second filter 160 is a depth filter that can remove heavy metals, microorganisms, etc. from water to achieve contaminants, and the second filter 160 can be a single or a combination of ultrafiltration, nanofiltration, or reverse osmosis.
The normal temperature purified water outlet of the water purifying part is conveyed to the purified water storing part through the power equipment.
The water storage part can store a certain volume of pure water to meet the requirement that a user can stably take water without being influenced by the water making state of the filter element, and can be a water purifying tank, a pressure barrel 190 and the like.
The clean water tank has no driving force, and the user needs to be externally connected with a driving pump to supply the pure water in the clean water tank to the user, and the pressure tank 190 has a certain driving force, so that the user can normally open the end of the drinking water to obtain the required drinking water. The water storage part conveys pure water to the water taking end.
The related mating structural components may be a water pump, a control valve, a diverter valve 151, a pressure sensor 140, and the like. The water pump can provide driving force for water delivery, comprises a water pump, a booster pump and the like, the water pump is only used for driving water delivery, and the booster pump can further realize boosting.
The control valve comprises a water inlet electromagnetic valve, a waste water electromagnetic valve 173, a one-way valve 171 and the like, and the water inlet electromagnetic valve is used for controlling closing and opening of the waterway.
The waste water solenoid valve 173 has two states of operation and flushing for the filter cartridge to clean water or to discharge the sewage in the flushing state.
The check valve 171 is used to control the flow of water in a specific direction to prevent reverse flow.
The diverter valve 151 adjusts the proportion of water entering different branches by adjusting the opening and closing degree of the adjusting valve. The pressure sensor 140 is used to detect a real-time pressure value at a location in the waterway.
The flow rate regulating valve 152 is used to regulate the flow rate.
The operation of the parts is controlled by the program of the whole machine controller, and the closing and opening of the pump and the control valve are controlled according to the detected relevant parameters, such as pressure, so that the functions of normal water production, flushing and the like are realized. The controller logic adjusts the flow into the parallel branch based on the sensed pre-membrane pressure value.
As shown in fig. 4, the pressure sensor 140 and the flow rate adjustment device 150 are connected to a controller, respectively.
According to an embodiment of the present invention, as shown in fig. 5, in another aspect, there is provided a water production control method of a water purification system 100, comprising the steps of:
step S101: acquiring pre-membrane pressure information of a second filter element 160 on different water making branch pipelines 120;
step S103: the flow rate adjusting device 150 is controlled to adjust the flow rate of raw water entering the first filter cartridge 130 according to the pre-membrane pressure information.
By acquiring parameters of the pressure sensor 140 before the membrane of the first filter element 130 on the branch pipeline 120 for different water production, the flow regulating device 150 is regulated by a specific algorithm to regulate the inflow flow ratio of the branch, so that the pressure before the membrane of the first filter element 130 is the same, and finally, synchronous failure of filter elements with different service lives can be realized.
In another embodiment, the flow rate adjusting device 150 is controlled to adjust the flow rate of the raw water entering the first filter element 130 according to the pre-membrane pressure information, which specifically includes the following steps:
step S201: calculating the pressure difference before the membrane of the second filter element 160 of the different water making branch pipelines 120;
step S203: if the pre-membrane pressure differential is greater than the preset pressure value, the flow regulating device 150 is adjusted to enter the corresponding first filter cartridge 130 at a different inlet water ratio.
In another embodiment, if the pressure difference before the membrane is greater than the preset pressure value, the flow regulator 150 is adjusted to enter the corresponding first filter element 130 with different water inlet ratios, which specifically includes: the controller adjusts the opening and closing degree of the flow regulator 150 to adjust the water inlet ratio of the water making branch pipe 120 with high pressure and adjust the water inlet ratio of the water making branch pipe 120 with low pressure, so that the pressure difference before the membrane is smaller than the preset pressure value.
The system takes 2 parallel branches as an example, and the flux of the corresponding filter element is 600G and 800G. In particular, the parallel branches may be 2, 3 … ….
The filter core comprises a first filter core PCB filter core and an RO membrane filter core, wherein the first filter core PCB filter core consists of a pretreatment filter core PP cotton filter core and a post-treatment filter core carbon rod filter core. The raw water sequentially passes through the front part of the PCB filter element of the first filter element, the RO membrane filter element and the rear part of the PCB filter element to finish water quality treatment. In particular, the filter element may be a multiple filter element composite or other combination.
The raw water gap 110 is connected with a flow dividing valve 151, and the ratio of water entering different branches is regulated by the flow dividing valve 151 and then enters the front PP cotton filter element in the PCB filter element for pretreatment. The PCB filter element is opened through a water inlet electromagnetic valve and pressurized by a pressure stabilizing pump 180 and then enters the RO membrane filter element. The RO membrane filter core is provided with pure water and a concentrated water port, wherein the concentrated water is discharged through a waste water electromagnetic valve 173, and the pure water enters the rear carbon rod filter core of the PCB filter core through a one-way valve 171 for post-treatment. The PCB cartridge is connected to a pure water storage part, i.e., a pressure tank 190, for storage for a user to take water. The controller provides a pressure sensor 140 between the booster pump and the RO membrane cartridge. The controller has a control program for the whole machine to run, and the control system can control the starting time of the pressure stabilizing pump 180, the starting and stopping time of the water inlet electromagnetic valve of the water purifying system 100, the starting and stopping time of the wastewater control valve and the like. Realizing functions of water making, flushing, drinking water supply, filter element service life adjustment and the like.
Taking two water making branch pipelines 120 as an example, the specific control of the load adjustment of the service life of the filter element is as follows:
monitoring the pre-membrane pressure: and setting the pressure difference delta P before the membranes on the two branches, wherein the pressure values before the membranes of the two filter elements are P1 and P2 respectively.
Adjusting the flow rate according to the monitoring result of the pressure before the membrane: when the pressure sensor 140 detects that the pre-membrane pressure |p1-p2| < P of the second filter element 160 on the two water making branch pipes 120, the diverter valve 151 does not need to adjust the opening and closing degree, and raw water flows into the corresponding water making branch pipe 120 according to the initial proportion; when the pressure sensor 140 detects the pressure |P1-P2| > P before the membrane of the two water making branch pipelines 120, the controller adjusts the opening and closing degree of the flow dividing valve 151 according to a certain algorithm so as to adjust the water inlet proportion of different branches.
The adjusting flow is specifically described below by taking 600G as the second filter element 160 of one of the water making branch pipes 120 and 800G as the second filter element 160 of the other water making branch pipe 120 as an example.
Assuming p=5 psi, when the pre-membrane pressure p1=80 psi for the 600G cartridge and p2=80 psi for the 800G cartridge, the corresponding flows are 1.5L/min and 2L/min, respectively, and Δp=0 is calculated, the diverter valve 151 does not need to be adjusted.
When the pressure before 600G filter element membrane is p1=90 psi, the pressure before 800G filter element membrane is p2=100 psi, and the corresponding flow rates are 1.41L/min and 2.09L/min, respectively, Δp=10 >5 is calculated, at this time, the controller adjusts the opening and closing degree of the diverter valve 151 to reduce the water inlet proportion of the 800G filter element on the water making branch pipeline 120, the water inlet proportion of the corresponding 600G filter element on the water making branch pipeline 120 is increased, the corresponding flow rates of 600G and 800G are 1.5L/min and 2L/min respectively, so that the pressure difference |p1-p2| < P between the corresponding membrane front pressures of the second filter element 160 on the two water making branch pipelines 120 is made
According to an embodiment of the present invention, in another aspect, there is provided a storage medium storing a computer program which, when executed by a processor, implements the steps of the water production control method of the water purification system 100 of any one of the above.
The storage medium may further perform the steps of:
acquiring pre-membrane pressure information of a second filter element 160 on different water making branch pipelines 120;
the flow rate adjusting device 150 is controlled to adjust the flow rate of raw water entering the first filter cartridge 130 according to the pre-membrane pressure information.
The storage medium may further perform the steps of:
calculating the pressure difference before the membrane of the second filter element 160 of the different water making branch pipelines 120;
if the pre-membrane pressure differential is greater than the preset pressure value, the flow regulating device 150 is adjusted to enter the corresponding first filter cartridge 130 at a different inlet water ratio.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the appended claims.
Claims (10)
1. A water purification system, comprising:
a raw water port (110);
the water making branch pipelines (120) are respectively connected with the raw water port (110), the water making branch pipelines (120) are connected in parallel, a first filter element (130) and a second filter element (160) are connected in series on each water making branch pipeline (120), and the second filter element (160) is positioned at the downstream of the first filter element (130);
the flow regulating device (150) is arranged on the water making branch pipeline (120);
a pressure sensor (140) arranged on the water making branch pipeline (120), wherein the pressure sensor (140) is arranged at the upstream of the water inlet of the second filter element (160), and the pressure sensor (140) is suitable for detecting the pressure of the water inlet of the second filter element (160) and sending pressure information;
and the controller is in communication connection with the pressure sensor (140) and the flow regulating device (150) respectively, and is suitable for controlling the flow regulating device (150) to regulate the flow of water entering different water making branch pipelines (120) according to the pressure information sent by the pressure sensor (140).
2. The water purification system of claim 1, wherein the flow regulating device (150) comprises a diverter valve (151), the diverter valve (151) having a water inlet valve (172) port and a plurality of water outlet valve ports, the water inlet valve (172) port being connected to the water inlet port, each of the water outlet valve ports being connected to a corresponding water inlet port of the first filter cartridge (130), and the diverter valve (151) being communicatively connected to the controller.
3. The water purification system (100) of claim 1, wherein the flow regulating device (150) further comprises a flow regulating valve (152), the flow regulating valve (152) being disposed on at least one of the water making branch lines (120), and the flow regulating valve (152) being adapted to regulate flow into the water inlet of the first filter cartridge (130), the flow regulating valve (152) being communicatively coupled to the controller.
4. The water purification system of claim 1, wherein the flow regulating device (150) further comprises a water pump in communication with the controller, the controller being adapted to control the output power of the water pump to regulate the flow of water from the water pump to the water inlet of the first filter element (130) based on pressure information of the water inlet of the first filter element (130).
5. The water purification system according to any one of claims 1 to 4, wherein the first filter cartridge (130) comprises a first filter cartridge having a first water inlet (1301), the first water inlet (1301) being connected to the raw water inlet (110), the pressure sensor (140) being provided at the first water inlet (1301).
6. The water purification system of claim 5, wherein the first filter cartridge (130) further comprises a second filter cartridge, the first filter cartridge further having a first water outlet (1302), the second filter cartridge having a second water inlet (1303) and a second water outlet (1304), the first water outlet (1302) being connected to the water inlet of the second filter cartridge (160), the second water inlet (1303) being connected to the water outlet of the second filter cartridge (160), the second water outlet (1304) being adapted to deliver purified water.
7. A water production control method of a water purification system (100), comprising:
acquiring pre-membrane pressure information of a second filter element (160) on different water making branch pipelines (120);
and controlling a flow rate regulating device (150) to regulate the flow rate of raw water entering the first filter element (130) according to the pre-membrane pressure information.
8. The water production control method of the water purification system according to claim 7, wherein the flow rate adjusting device (150) is controlled to adjust the flow rate of raw water entering the second filter element (160) according to the pre-membrane pressure information, specifically comprising:
calculating the pressure difference before the membrane of a second filter element (160) of different water making branch pipelines (120);
and if the pressure difference before the membrane is larger than a preset pressure value, adjusting the flow regulating device (150) to enter the corresponding first filter element (130) in different water inlet proportions.
9. The water production control method of a water purification system according to claim 8, wherein if the pre-membrane pressure difference is greater than a preset pressure value, the flow rate adjusting device (150) is adjusted to enter the corresponding first filter element (130) at different water inlet ratios, specifically comprising: the controller adjusts the opening and closing degree of the flow adjusting device (150) to adjust the water inlet proportion of the water making branch pipeline (120) with large pressure and adjust the water inlet proportion of the water making branch pipeline (120) with small pressure, so that the pressure difference in front of the membrane is smaller than a preset pressure value.
10. A storage medium storing a computer program, characterized in that the computer program when executed by a processor realizes the steps of the water production control method of the water purification system (100) according to any one of claims 7 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311610571.2A CN117417007A (en) | 2023-11-28 | 2023-11-28 | Water purification system, water production control method for water purification system, and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311610571.2A CN117417007A (en) | 2023-11-28 | 2023-11-28 | Water purification system, water production control method for water purification system, and storage medium |
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| CN117417007A true CN117417007A (en) | 2024-01-19 |
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| CN202311610571.2A Pending CN117417007A (en) | 2023-11-28 | 2023-11-28 | Water purification system, water production control method for water purification system, and storage medium |
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| CN (1) | CN117417007A (en) |
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- 2023-11-28 CN CN202311610571.2A patent/CN117417007A/en active Pending
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