CN116750815A - System and method for accurately calculating service life of filter element of water purifier by using pressure sensor - Google Patents
System and method for accurately calculating service life of filter element of water purifier by using pressure sensor Download PDFInfo
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- CN116750815A CN116750815A CN202310476819.4A CN202310476819A CN116750815A CN 116750815 A CN116750815 A CN 116750815A CN 202310476819 A CN202310476819 A CN 202310476819A CN 116750815 A CN116750815 A CN 116750815A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 130
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 239000012528 membrane Substances 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 239000008399 tap water Substances 0.000 claims description 3
- 235000020679 tap water Nutrition 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000002699 waste material 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/28—Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/04—Ageing analysis or optimisation against ageing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computing Systems (AREA)
- Mathematical Optimization (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Algebra (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Mathematical Analysis (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
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- General Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The invention provides a system and a method for accurately calculating the service life of a filter element of a water purifier by using a pressure sensor, and relates to the technical field of filter elements of water purifiers. The system for accurately calculating the service life of the filter element of the water purifier by using the pressure sensor comprises a front pressure sensor, a filter element, a rear pressure sensor and a flowmeter, wherein the front pressure sensor is positioned on a front end pipeline of the filter element, the rear pressure sensor and the flowmeter are positioned on a rear end pipeline of the filter element, and the rear pressure sensor is positioned between the filter element and the flowmeter. According to the invention, two pressure sensors are added in front and behind the filter element, the front pressure sensor tests the pressure of the water inlet end of the filter element, and the rear pressure sensor tests the pressure of the water outlet end of the filter element; the flow meter detects the water passing capability of the filter element in real time, and the more accurate real-time service life of the filter element can be calculated through the pressure sensor and the filter element algorithm model.
Description
Technical Field
The invention relates to the technical field of filter elements of water purifiers, in particular to a system and a method for accurately calculating the service life of the filter element of the water purifier by using a pressure sensor.
Background
The water purifier is also called a water purifier and a water quality purifier, and is water treatment equipment for carrying out deep filtration and purification treatment on water according to the use requirement of water. The technical core is a filter membrane in the filter element device, and the main technology is derived from three types of ultrafiltration membranes, RO reverse osmosis membranes and nanofiltration membranes. RO membrane, sodium filter membrane, it relies on the pump to increase pressure to the raw water, makes the aquatic water can pass RO membrane, and the fine impurity in the raw water, too much inorganic salt, organic matter, heavy metal ion, bacterium, virus, pesticide, harmful substance system such as chloroform are held back, and are discharged through concentrated water route. The filter pore diameter is only 0.0001 micron, and the removal rate of bacteria, viruses and the like in water is over 99.9 percent, and is theoretically 100 percent.
The filter element is a core component of the water purifier, and the quality and the service life of the filter element directly determine the water purifying effect and the service life of the water purifier. The filter element has service life and needs maintenance and replacement, and the service life of the filter element is estimated by mainly adopting two methods of time (service time) and water flow in the current industry for calculating the service life of the filter element. The same filter element can lead to obvious difference in service life of the filter element due to different water quality and frequency. The filter element is calculated by adopting the two methods, the water quality difference and the use difference of individual equipment are not considered, so that the calculation of the filter element is rough, or the service life of the filter element is prolonged, the filter element is replaced in advance, and the service life of the filter element is wasted; or the filter element is blocked, and normal water consumption of users is affected.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects in the prior art, the invention provides a system and a method for accurately calculating the service life of a filter element of a water purifier by using a pressure sensor, and solves the defects and the defects in the prior art.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the system for accurately calculating the service life of the filter element of the water purifier by using the pressure sensor comprises a front pressure sensor, a filter element, a rear pressure sensor and a flowmeter, wherein the front pressure sensor is positioned on a front end pipeline of the filter element, the rear pressure sensor and the flowmeter are positioned on a rear end pipeline of the filter element, and the rear pressure sensor is positioned between the filter element and the flowmeter.
Preferably, the front pressure sensor is used for testing the pressure of the water inlet end of the filter element.
Preferably, the rear pressure sensor is used for testing the pressure of the water outlet end of the filter element.
Preferably, the flowmeter is used for detecting the water passing capacity of the filter element in real time.
The method for precisely calculating the service life of the filter element of the water purifier by using the pressure sensor comprises the following steps:
1) And (3) a brand new filter element, adjusting different water inlet pressures, and analyzing the relation between the water inlet pressure and the water passing capacity of the filter element:
in a laboratory, a brand new filter element is used, a water outlet tap is opened, a pressure barrel is not connected (the pressure of a rear pressure sensor=0), different water inlet pressures J (1..n) are regulated, and the water making speed V (1..n) of the filter element per minute under different water inlet pressures is tested by a flowmeter;
the water inlet pressure J (1..n) and the water making speed V (1..n) can be obtained by a table look-up method or a function fitting mode, and the water making speed V of the brand new filter element is obtained under the condition of the pressure J;
v＝f(j)；
2) Brand new filter core, inlet water pressure core, relation of pressure and outlet water after analysis membrane:
the brand new filter element, the invariable water inlet pressure (for example: ordinary tap water inlet pressure 2.5 kg), increase the pressure barrel, the water outlet end adjusts the pressure of the water outlet end through the splitter valve, change the pressure behind the filter element membrane, through the pressure behind different membranes, get behind different membranes pressure C (1..n) and filter element water making speed V (1..n), can adopt the table look-up method or the mode that the function fits equally, under the condition of the latter pressure C, the water making speed V of brand new filter element (presume under this invariable pressure, when the water outlet pressure is 0, the water making speed is V0), then:
v＝V0*m(c)；
3) Through inlet pressure sensor pressure j and outlet pressure sensor pressure c, the water making speed of the brand new filter element can be deduced as follows:
v＝f(j)*m(c)
4) With the use of the filter element, the filter element can be gradually blocked, the water production capacity of the filter element can be gradually reduced, and the actual water production speed of the filter element is as follows when the inlet water pressure sensor pressure j and the outlet water pressure sensor pressure c are assumed to be: v, the residual life of the filter element is L:
filter element residual life = L = V/V = V/(f (j) m (c)): 100%;
the invention can accurately calculate the residual life percentage of the filter element, thereby accurately judging the replacement time of the filter element and better serving customers;
5) The multistage filter element requires the addition of a pressure sensor between the filter elements, which is both the rear pressure sensor of the preceding filter element and the front pressure sensor of the following filter element.
(III) beneficial effects
The invention provides a system and a method for accurately calculating the service life of a filter element of a water purifier by using a pressure sensor.
The beneficial effects are as follows:
1. according to the invention, two pressure sensors are added in front and behind the filter element, the front pressure sensor tests the pressure of the water inlet end of the filter element, and the rear pressure sensor tests the pressure of the water outlet end of the filter element; the flowmeter detects the water passing capability of the filter element in real time.
2. According to the invention, through the pressure sensor and the filter element algorithm model, the more accurate real-time service life of the filter element can be calculated.
3. According to the invention, the accurate filter core service life is utilized, so that the filter core can be more accurately replaced for a customer, the filter core service life is not wasted, the use of the customer is not influenced due to the blockage of the filter core, the resource is furthest utilized, the waste is avoided, and the normal use of the user is not influenced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of the structure of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
Examples:
1-2, the embodiment of the invention provides a system for accurately calculating the service life of a filter element of a water purifier by utilizing a pressure sensor, wherein the system comprises a front pressure sensor, a filter element, a rear pressure sensor and a flowmeter, the front pressure sensor is positioned on a front end pipeline of the filter element, the rear pressure sensor and the flowmeter are positioned on a rear end pipeline of the filter element, and the rear pressure sensor is positioned between the filter element and the flowmeter;
the front pressure sensor is used for testing the pressure of the water inlet end of the filter element, the rear pressure sensor is used for testing the pressure of the water outlet end of the filter element, and the flowmeter is used for detecting the water passing capacity of the filter element in real time.
The invention also comprises a method for precisely calculating the service life of the filter element of the water purifier by using the pressure sensor, and the method comprises the following specific contents:
1) Hardware modification
The front pressure sensor is added at the front end of the filter element, and the pressure sensor and the flowmeter are added after the rear end of the filter element:
2) Parameter initialization
A) And (3) a brand new filter element, adjusting different water inlet pressures, and analyzing the relation between the water inlet pressure and the water passing capacity of the filter element:
in a laboratory, a brand new filter element is used, a water outlet tap is opened, a pressure barrel is not connected (the pressure of a rear pressure sensor=0), different water inlet pressures J (1..n) are regulated, and the water making speed V (1..n) of the filter element per minute under different water inlet pressures is tested by a flowmeter, so that the water making speed V (1..n) of the filter element per minute is shown in the following table 1;
TABLE 1
Through water inlet pressure J (1..n), water making speed V (1..n), can obtain through the mode of table look-up method or function fit, under pressure J's condition, the water making speed V relation function of brand-new filter core:
v＝f(j)；
b) Brand new filter core, inlet water pressure core, relation of pressure and outlet water after analysis membrane:
the novel filter element has the advantages that the pressure of water entering the filter element is constant (for example, the pressure of water entering ordinary tap water is 2.5 kg), a pressure barrel is added, the pressure of the water outlet end is regulated by a flow dividing valve at the water outlet end, and the pressure of the filter element membrane is changed. The different post-membrane pressures C (1..n) and the cartridge water making speeds V (1..n) were obtained by the different post-membrane pressures, as shown in table 1 below;
TABLE 2
The water making speed V of the brand new filter element can be obtained by adopting a table look-up method or a function fitting mode, and under the condition of the rear pressure c (assuming that the water making speed is V0 when the water outlet pressure is 0 under the constant pressure), the water making speed V is:
v＝V0*m(c)；
c) With the use of the filter element, the filter element can be gradually blocked, and the water making capacity of the filter element can be gradually reduced. Assuming that when the inlet water pressure sensor pressure j and the outlet water pressure sensor pressure c are, the actual water making speed of the filter element is: v, the residual life of the filter element is:
filter element residual life = V/V = V/(f (j) m (c)): 100%;
when the service life of the filter element is less than S (S=30-50%), prompting a user that the filter element needs to be replaced;
the calculation flow of the residual life of the filter element is as follows:
the flow is as follows, driven by a timer:
1) Reading a filter element inlet water pressure sensor to obtain the pressure j;
2) Reading a filter element water outlet pressure sensor to obtain the pressure c;
3) V is the real-time water making speed of the filter element obtained through calculation by the flowmeter;
4) Calculating the residual life of the filter element: l=v/(f (j)) m (c))100%;
5) And (5) ending.
According to the invention, two pressure sensors are added in front and behind the filter element, the front pressure sensor tests the pressure of the water inlet end of the filter element, and the rear pressure sensor tests the pressure of the water outlet end of the filter element; the flow meter detects the water passing capability of the filter element in real time, and the more accurate real-time service life of the filter element can be calculated through the pressure sensor and the filter element algorithm model.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Utilize pressure sensor to calculate system of purifier filter core life-span accurately, its characterized in that: the system consists of a front pressure sensor, a filter element, a rear pressure sensor and a flowmeter, wherein the front pressure sensor is positioned on a front end pipeline of the filter element, the rear pressure sensor and the flowmeter are positioned on a rear end pipeline of the filter element, and the rear pressure sensor is positioned between the filter element and the flowmeter.
2. The system for precisely calculating the life of a water purifier filter element using a pressure sensor according to claim 1, wherein: the front pressure sensor is used for testing the pressure of the water inlet end of the filter element.
3. The system for precisely calculating the life of a water purifier filter element using a pressure sensor according to claim 1, wherein: the rear pressure sensor is used for testing the pressure of the water outlet end of the filter element.
4. The system for precisely calculating the life of a water purifier filter element using a pressure sensor according to claim 1, wherein: the flowmeter is used for detecting the water passing capacity of the filter element in real time.
5. The method for accurately calculating the service life of the filter element of the water purifier by using the pressure sensor is characterized by comprising the following steps of: the method comprises the following steps:
1) And (3) a brand new filter element, adjusting different water inlet pressures, and analyzing the relation between the water inlet pressure and the water passing capacity of the filter element:
in a laboratory, a brand new filter element is used, a water outlet tap is opened, a pressure barrel is not connected (the pressure of a rear pressure sensor=0), different water inlet pressures J (1..n) are regulated, and the water making speed V (1..n) of the filter element per minute under different water inlet pressures is tested by a flowmeter;
the water inlet pressure J (1..n) and the water making speed V (1..n) can be obtained by a table look-up method or a function fitting mode, and the water making speed V of the brand new filter element is obtained under the condition of the pressure J;
v＝f(j)；
2) Brand new filter core, inlet water pressure core, relation of pressure and outlet water after analysis membrane:
the brand new filter element, the invariable water inlet pressure (for example: ordinary tap water inlet pressure 2.5 kg), increase the pressure barrel, the water outlet end adjusts the pressure of the water outlet end through the splitter valve, change the pressure behind the filter element membrane, through the pressure behind different membranes, get behind different membranes pressure C (1..n) and filter element water making speed V (1..n), can adopt the table look-up method or the mode that the function fits equally, under the condition of the latter pressure C, the water making speed V of brand new filter element (presume under this invariable pressure, when the water outlet pressure is 0, the water making speed is V0), then:
v＝V0*m(c)；
3) Through inlet pressure sensor pressure j and outlet pressure sensor pressure c, the water making speed of the brand new filter element can be deduced as follows:
v＝f(j)*m(c)；
4) With the use of the filter element, the filter element can be gradually blocked, the water production capacity of the filter element can be gradually reduced, and the actual water production speed of the filter element is as follows when the inlet water pressure sensor pressure j and the outlet water pressure sensor pressure c are assumed to be: v, the residual life of the filter element is L:
filter element residual life = L = V/V = V/(f (j) m (c)): 100%;
the invention can accurately calculate the residual life percentage of the filter element, thereby accurately judging the replacement time of the filter element and better serving customers;
5) The multistage filter element requires the addition of a pressure sensor between the filter elements, which is both the rear pressure sensor of the preceding filter element and the front pressure sensor of the following filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310476819.4A CN116750815A (en) | 2023-04-28 | 2023-04-28 | System and method for accurately calculating service life of filter element of water purifier by using pressure sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310476819.4A CN116750815A (en) | 2023-04-28 | 2023-04-28 | System and method for accurately calculating service life of filter element of water purifier by using pressure sensor |
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| CN116750815A true CN116750815A (en) | 2023-09-15 |
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| CN202310476819.4A Pending CN116750815A (en) | 2023-04-28 | 2023-04-28 | System and method for accurately calculating service life of filter element of water purifier by using pressure sensor |
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| CN (1) | CN116750815A (en) |
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2023
- 2023-04-28 CN CN202310476819.4A patent/CN116750815A/en active Pending
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Effective date of registration: 20231031 Address after: Room 305, 3rd Floor, Building A, No. 599 Gaojing Road, Qingpu District, Shanghai, 201799 Applicant after: SHANGHAI PUDOW SHUIHUI ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: 201799 Room 201, Floor 2, Building B, Building 3, No. 99, Lane 215, Gaoguang Road, Qingpu District, Shanghai Applicant before: SHANGHAI PUDOW SHUIHUI WATER PURIFICATION UNIT Co.,Ltd. |
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