CN110697924B - Intelligent water purification system and intelligent water purification method - Google Patents
Intelligent water purification system and intelligent water purification method Download PDFInfo
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- CN110697924B CN110697924B CN201911102009.2A CN201911102009A CN110697924B CN 110697924 B CN110697924 B CN 110697924B CN 201911102009 A CN201911102009 A CN 201911102009A CN 110697924 B CN110697924 B CN 110697924B
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
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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
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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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
- C02F2209/03—Pressure
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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
- C02F2209/44—Time
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Abstract
The invention provides an intelligent water purification system and an intelligent water purification method. Through introducing detection device, can be according to the testing result to first preprocessing unit operating condition to combine intelligent cleaning program control, weaken or strengthen the washing to first preprocessing unit, thereby effectively improve the cleaning performance to the filter core.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to an intelligent water purification system and an intelligent water purification method.
Background
In the application process of the water purifier, a PP cotton (polypropylene fiber is used for artificial chemical fiber) filter element, an activated carbon filter element, an ultrafiltration membrane filter element, a microfiltration membrane filter element, a PAC (polyaluminium chloride) composite filter element, a membrane and carbon composite filter element and the like can be used as a pretreatment filter element to remove impurities such as silt, suspended matters, rust, colloid, bacteria, large granular substances and the like contained in tap water. In the high bad quality of water area of impurity content, the life of preliminary treatment filter core is short to produce the problem that the filter core is changed frequently or is influenced the purifier performance, user experience feels poor.
Disclosure of Invention
Therefore, it is necessary to provide an intelligent water purification system and an intelligent water purification method aiming at the problems that when the conventional water purifier pretreatment filter element is used in a poor water quality area with high impurity content, the filter element is easy to block and the service life is short.
The above purpose is realized by the following technical scheme:
an intelligent water purification system, comprising: the device comprises a water inlet pipeline, a waste water pipeline, a water outlet pipeline, a water return pipeline, a first pretreatment unit, a backwashing unit, a detection unit and a control unit, wherein the water inlet pipeline is connected to the first pretreatment unit, and liquid in the water inlet pipeline flows to the water outlet pipeline after flowing into the first pretreatment unit; when the water outlet pipeline is closed, liquid in the backwashing unit can flow back into the first pretreatment unit through the water return pipeline and is discharged from the waste water pipeline; the detection unit is used for detecting the use condition of the first pretreatment unit, and the control unit controls the working states of the waste water pipeline and the water return pipeline according to the use condition of the first pretreatment unit.
In one embodiment, the detection unit comprises a timing device for detecting the working time of elements in the intelligent water purification system.
In one embodiment, the backwashing unit comprises a backwashing booster pump and a backwashing tank, the backwashing booster pump is used for increasing the pressure in the backwashing tank, and the timing device is used for detecting the working time length of the backwashing booster pump.
In one embodiment, the backwash unit further comprises a pressure regulator to control the pressure within the backwash tank.
In one embodiment, a first control valve, a second control valve and a third control valve are sequentially arranged on the water outlet pipeline, the water return pipeline and the wastewater pipeline, and the first control valve, the second control valve and the third control valve are used for controlling the on-off of the pipelines where the first control valve, the second control valve and the third control valve are arranged; the timing device is used for detecting the opening duration of the first control valve, the second control valve or the third control valve.
In one embodiment, the detection unit comprises a flow detection device, and the flow detection device is used for detecting the passing flow of a pipeline at a certain position in the intelligent water purification system.
In one embodiment, the first pretreatment unit is one or a combination of any of PP cotton, activated carbon, PAC, an ultrafiltration membrane and a microfiltration membrane filter element.
In one embodiment, the water outlet pipeline is connected with a fine filtering unit and a second pretreatment unit and/or a post-treatment unit.
In one embodiment, the fine filtration unit is one or a combination of any of an RO membrane, a nanofiltration membrane, an ultrafiltration membrane and a microfiltration membrane filter core; the second pretreatment unit is one or the combination of any more of PP cotton, active carbon, PAC, an ultrafiltration membrane and a microfiltration membrane filter core; the post-treatment unit is one or the combination of any more of active carbon, an ultrafiltration membrane, a carbon composite filter element, a microfiltration membrane and a carbon composite filter element.
The invention also provides an intelligent water purification method, which comprises the intelligent water purification system in any one of the embodiments, wherein the intelligent water purification system is arranged in the water purification equipment, and the intelligent water purification method comprises the following steps:
s110, closing a water return pipeline and a waste water pipeline, opening a water outlet pipeline, accumulating the specified water making time of water making, and simultaneously increasing the pressure in the backwashing unit; acquiring the use condition of a first preprocessing unit according to the detection result of the detection unit;
s120, closing the water outlet pipeline, opening the waste water pipeline, and continuing for a first specified time T1;
s130, opening a water return pipeline, and continuing for a second designated time length T2;
the first designated duration T1 and the second designated duration T2 are determined according to the usage status of the first preprocessing unit, and steps S110 to S130 are performed in a loop.
In one embodiment, the following steps are further included after the step S130:
s114, closing a water return pipeline and a waste water pipeline, and increasing the pressure in the backwashing unit to a specified pressure;
then, step S120 to step S130 are executed, wherein the steps S114 to S130 are executed at least once in a loop.
In one embodiment, the method further comprises the following steps:
the following steps are also included after the step S110:
s112, standby for a specified standby time period T3.
In one embodiment, the detection unit comprises a timing device for detecting a working time period T0 of the elements in the intelligent water purification system, wherein the working time period T0 is positively correlated with the first designated time period T1 and the second designated time period T2.
In one embodiment, when the working time length T0 is less than the preset value, the first designated time length T1 and the second designated time length T2 are shortened;
when the operating time period T0 is greater than the preset value, the first designated time period T1 and the second designated time period T2 are extended.
In one embodiment, the backwashing unit comprises a backwashing booster pump and a backwashing tank, the backwashing booster pump is used for increasing the pressure in the backwashing tank when working, and the working time length T0 is the working time length of the backwashing booster pump.
In one embodiment, the detecting unit includes a flow detecting device, and the flow detecting device is used for detecting a passing flow L of a pipeline in the intelligent water purifying system, wherein the passing flow L is positively correlated with the first designated time period T1 and the second designated time period T2.
The invention has the beneficial effects that:
the invention provides an intelligent water purification system and an intelligent water purification method. Through introducing detection device, can be according to the testing result to first preprocessing unit operating condition to combine intelligent cleaning program control, weaken or strengthen the washing to first preprocessing unit, thereby effectively improve the cleaning performance to the filter core.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent water purification system according to an embodiment of the present invention.
Wherein:
a water inlet line 120; a waste water line 130; a third control valve 131; an outlet conduit 140; the first control valve 141; a return water line 150; the second control valve 151; a second check valve 152; a first preprocessing unit 160; a backwash booster pump 171; a voltage stabilizer 172; a backwash tank 173; a detection unit 181; a second preprocessing unit 210; a fine filtering unit 220; a post-processing unit 230.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below by way of embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The invention provides an intelligent water purification system, as shown in figure 1, comprising: the system comprises a water inlet pipeline 120, a waste water pipeline 130, a water outlet pipeline 140, a water return pipeline 150, a first pretreatment unit 160, a backwashing unit, a detection unit and a control unit, wherein the water inlet pipeline 120 is connected to the first pretreatment unit 160, and liquid in the water inlet pipeline 120 flows to the water outlet pipeline 140 or the backwashing unit after flowing into the first pretreatment unit 160; the liquid in the backwashing unit can flow back to the first pretreatment unit 160 through the return line 150 and be discharged from the waste water line 130; the detection unit is used for detecting the working condition of the first pre-processing unit 160, and the longer the working time of the first pre-processing unit 160 is, the greater the workload of cleaning the first pre-processing unit 160 is. The control unit controls the operation states of the waste water line 130 and the return water line 150 according to the use condition of the first preprocessing unit 160. When the first pretreatment unit 160 is in a good condition, the workload of cleaning the first pretreatment unit 160 can be properly reduced, and resources are saved; when the first pretreatment-unit status is poor, the workload of cleaning the first pretreatment unit 160 can be increased appropriately to ensure the cleaning effect.
In one embodiment, the detection unit comprises a timing device for detecting the working time of the elements in the intelligent water purification system. Since the operating condition of the first pre-processing unit 160 is difficult to measure directly, the operating condition of the first pre-processing unit 160 can be inferred by measuring other parameters that are easier to measure. In general, an intelligent water purification system usually performs cleaning according to a certain program, and the working time lengths of the internal elements have a certain correlation, so that some working elements which are easy to measure the working time lengths can be measured, and the working condition of the first pretreatment unit 160 can be calculated by a certain calculation method.
In some of these embodiments, the backwash unit includes a backwash booster pump 171 and a backwash tank 173, the backwash booster pump 171 being used to boost the pressure in the backwash tank 173, boosting the cleaning effect of the backwash unit on the first pretreatment unit 160. Obviously, the longer the backwash booster pump 171 is operated, the longer the first pretreatment unit 160 is used, and the worse the operation condition is. The timing device estimates the operating condition of the first pre-processing unit 160 by counting the operating time of the backwash booster pump 171. The start and the stop of the backwashing booster pump 171 are triggered by electric signals, and when the backwashing booster pump 171 is started or stopped, the timing device is synchronously started or stopped, so that the working time of the backwashing booster pump 171 can be counted.
In other embodiments, the water outlet pipeline 140, the water return pipeline 150, and the waste water pipeline 130 are sequentially provided with a first control valve 141, a second control valve 151, and a third control valve 131, and the first control valve 141, the second control valve 151, and the third control valve 131 are used to control the on/off of the pipeline where the water outlet pipeline 140, the water return pipeline 150, and the waste water pipeline 130 are located; the timing device is used to detect the time period for which the first control valve 141, the second control valve 151, or the third control valve 131 is opened. The duration of time that each control valve is opened is positively correlated with the operating condition of the first preprocessing unit 160, and the longer the control valve is opened, the longer the first preprocessing unit 160 is operated. The timing device estimates the operation condition of the first preprocessing unit 160 by counting the opening time of a certain control valve. The opening and closing of the control valve are triggered by electric signals, and when the control valve is opened or closed, the timing device is synchronously opened or closed, namely the working time of the control valve can be counted.
In addition to estimating the operation of the first pre-processing unit 160 by timing, the operation of the first pre-processing unit 160 can also be estimated by flow measurement. In some embodiments, the detection unit includes a flow monitoring device disposed on the waste pipe 130. Since the flow through the waste line 130 is mostly used to clean the first pretreatment unit 160, the more the flow through the waste line 130, the longer the first pretreatment unit 160 operates.
In some embodiments, the backwash unit comprises a backwash tank 173, a backwash pressurizing pump 171 and a pressure regulator 172, the backwash pressurizing pump 171 is used for increasing the pressure in the backwash tank 173, the pressure regulator 172 is used for regulating the pressure in the backwash tank 173, the pressure in the backwash tank 173 is normally kept between 0.1MPa and 0.8MPa, and the backwash tank 173 presses the liquid in the tank back into the first pretreatment unit 160 by means of the pressure to complete the cleaning of the first pretreatment unit 160.
In some of these embodiments, the backwash tank 173 may be spherical, cylindrical, square or otherwise shaped. The number of the backwash tanks 173 is single or plural, and when the number of the backwash tanks 173 is plural, the plural backwash tanks 173 may be connected in parallel or in series; the pressure range that the backwashing tank 173 can bear is 0MPa-0.8 MPa; the volume of a single backwash tank 173 or the volume of a plurality of backwash tanks 173 connected in series is 0L to 5L.
In some embodiments, the first pretreatment unit 160 is a filtration system composed of a plurality of filter elements, and the filter elements may be one or a combination of any of a PP cotton filter element, an activated carbon filter element, a PAC filter element, an ultrafiltration membrane filter element, and a microfiltration membrane filter element.
In some embodiments, in order to further improve the filtering effect, in addition to the first pretreatment unit 160, a second pretreatment unit 210, a fine filtering unit 220, and a post-treatment unit 230 are further provided, wherein the second pretreatment unit 210 and the first pretreatment unit 160 have substantially the same structure and material; the fine filtering unit 220 is one or a combination of any of a RO (Reverse Osmosis) membrane filter element, a nanofiltration membrane filter element, an ultrafiltration membrane filter element and a microfiltration membrane filter element; the post-treatment unit 230 is one or a combination of any of an activated carbon filter element, an ultrafiltration membrane, a carbon composite filter element, a microfiltration membrane and a carbon composite filter element.
In some embodiments, the on/off of each of the pipelines is controlled by a solenoid valve or an electrically controlled valve, including a first control valve 141 disposed on the water outlet pipeline 140, a second control valve 151 disposed on the water return pipeline 150, and a third control valve 131 disposed on the waste water pipeline 130. The opening and closing of the control valves are independent, and the corresponding control valves can be opened and closed according to requirements.
The invention also provides an intelligent water purification method, which is applied to the intelligent water purification system in the embodiment and comprises the following steps:
s110, closing a water return pipeline and a waste water pipeline, opening a water outlet pipeline, accumulating the specified water making time of water making, and simultaneously increasing the pressure in the backwashing unit; acquiring the use condition of a first preprocessing unit according to the detection result of the detection unit;
s120, closing the water outlet pipeline, opening the waste water pipeline, and continuing for a first specified time T1;
s130, opening a water return pipeline, and continuing for a second designated time length T2;
the first designated duration T1 and the second designated duration T2 are determined according to the usage status of the first preprocessing unit, and steps S110 to S130 are performed in a loop.
Step S110 is a water preparation step, wherein liquid in the water inlet pipeline flows out of the water outlet pipeline or flows to a subsequent processing unit after being filtered by the first pretreatment unit during water preparation. When the step S120 is carried out, the liquid in the water inlet pipeline is directly discharged from the waste water pipeline after passing through the first pretreatment unit, and the pressure in the water inlet pipeline is reduced at the moment, so that the subsequent cleaning step is facilitated. Step S130 is a backwashing step, wherein liquid in the backwashing unit flows to the first pretreatment unit through the water return pipeline during backwashing, cleans the first pretreatment unit and is discharged through the waste water pipeline.
Further, the following steps are included after the step S130:
s114, closing a water return pipeline and a waste water pipeline, and increasing the pressure in the backwashing unit to a specified pressure;
then, step S120 to step S130 are executed, wherein the steps S114 to S130 are executed at least once in a loop.
Step S114 is a pressurization step, and after the pressure in the backwashing unit is increased, the cleaning effect of the backwashing unit on the first pretreatment unit is advantageously improved. After the water preparation step S110 is completed, the steps S114 to S130 may be executed once or repeatedly, and the more the execution times are, the better the cleaning effect on the first pretreatment unit is.
Further, the intelligent water purification method further comprises the following steps:
s112, standby for a specified standby time period T3.
Step S112 is performed after step S110 is performed, and before step S114 or step S120 is performed. Under the general condition, a certain time interval exists between two adjacent water making processes of the intelligent water purification system, if the first pretreatment unit is cleaned immediately after the water making process, the inside of the first pretreatment unit is easily polluted in a humid environment before the next water making process, and the filtering function of the first pretreatment unit is reduced when the water making process is carried out again. After water is produced, the first pretreatment unit is cleaned after a period of time, so that cleaning can be completed before water production, and the filtering effect is improved.
The first specified duration T1, the second specified duration T2, and the specified pressure in the above-described embodiment are all related to the detection result of the detection unit. The designated water production period is preferably 0H-24H, the first designated period T1 is preferably 0S-10S, the second designated period T2 is preferably 0S-30S, and the designated standby period is preferably 0H-72H.
When the detection unit comprises a timing device, the timing device judges the working condition of the first pretreatment unit by counting the accumulated working time T0 of a certain element in the intelligent water purification system. Generally, the longer the operating time period T0, the worse the operating condition of the first pretreatment unit, and the corresponding need to increase the cleaning intensity of the first pretreatment unit, such as by increasing the designated time period T1 and/or the second designated time period T2, or by increasing the designated pressure P.
When the detection unit comprises the flow detection device, the flow statistical device cuts off the working condition of the first pretreatment unit by counting the accumulated passing flow L of a certain pipeline in the intelligent water purification system. Generally, the greater the throughput L, the poorer the operating conditions of the first pretreatment unit, and the corresponding need to increase the cleaning intensity of the first pretreatment unit, for example by a specified length T1 and/or a second specified length T2, or by a specified pressure P.
Compared with the prior art, the intelligent water purification system and the intelligent water purification method provided by the invention have at least the following advantages:
1. utilize intelligent water purification system to carry out self-cleaning to first pretreatment unit, in time get rid of filter core surface pollutant.
Through introducing detection device, can be according to the testing result to first preprocessing unit operating condition to combine intelligent cleaning program control, weaken or strengthen the washing to first preprocessing unit, thereby effectively improve the cleaning performance to the filter core.
Through the programming, adopt backwash booster pump and voltage regulator device to make backwash unit pressure adjustable, reach design pressure rapidly to make intelligent cleaning effect effective, quick.
The first embodiment is as follows:
this embodiment provides an intelligence water purification system, as shown in the figure, include: the system comprises a water inlet pipeline 120, a waste water pipeline 130, a water outlet pipeline 140, a water return pipeline 150, a first pretreatment unit 160, a backwashing unit and a detection unit, wherein the water inlet pipeline 120 is connected to the first pretreatment unit 160, and liquid in the water inlet pipeline 120 flows to the water outlet pipeline 140 or the backwashing unit after flowing into the first pretreatment unit 160; the liquid in the backwash unit can be returned to the first pretreatment unit 160 via a return line 150 and discharged from the waste water line 130. The detection unit is used for detecting the working condition of the first preprocessing unit 160.
The backwashing unit comprises a backwashing tank 173, a backwashing booster pump 171 and a pressure stabilizer 172 are arranged between the first pretreatment unit 160 and the backwashing tank 173, a water return pipeline 150 is connected in parallel with a pipeline provided with the backwashing booster pump 171 and the pressure stabilizer 172, and a second control valve 151 and a second one-way valve 152 are arranged on the water return pipeline 150. The outlet pipe 140 is provided with a first control valve 141, and the waste pipe 130 is provided with a third control valve 131. The water outlet pipe 140 is connected to a second pre-treatment unit 210, a fine filtration unit 220 and a post-treatment unit 230 for further filtration. The detection unit includes a timing device for detecting the operation time period T0 of the backwash booster pump 171.
During water production, the first control valve 141 is opened, and the water outlet pipeline 140 is opened; the second control valve 151 is closed, and the water return pipeline 150 is closed; the third control valve 131 is closed and the waste line 130 is closed. The liquid in the inlet line 120 first flows to the first pretreatment unit 160, and then flows to the backwash unit and the outlet line 140 after passing through the first pretreatment unit 160.
During cleaning, the first control valve 141 is closed, and the water outlet pipeline 140 is closed; the second control valve 151 is opened, the return line 150 is opened, the third control valve 131 is opened, and the waste water line 130 is opened. The liquid in the water inlet line 120 flows to the first pretreatment unit 160, passes through the first pretreatment unit 160, and then flows to the waste water line 130 and the backwashing unit, respectively, and the liquid in the backwashing unit flows back to the first pretreatment unit 160 through the water return line 150.
Example two:
the embodiment provides an intelligent water purification method applied to an intelligent water purification system in the first embodiment, which comprises the following steps:
s110, closing a water return pipeline and a waste water pipeline, opening a water outlet pipeline, accumulating the specified water making time of water making, and simultaneously increasing the pressure in the backwashing unit; acquiring the use condition of a first preprocessing unit according to the detection result of the detection unit;
s120, closing the water outlet pipeline, opening the waste water pipeline, and continuing for a first specified time T1;
s130, opening a water return pipeline, and continuing for a second designated time length T2;
the first designated duration T1 and the second designated duration T2 are determined according to the usage status of the first preprocessing unit, and steps S110 to S130 are performed in a loop. The operating time period T0 is positively correlated with the first designated time period T1 and the second designated time period T2.
When the operating time period T0 is less than 300h, the specified time T1 is 5S, and the specified time T2 is 15S. When the operating time period T0 is longer than 300h, the specified time T1 is 10S, and the specified time T2 is 30S.
Example three:
the embodiment provides an intelligent water purification method applied to an intelligent water purification system in the first embodiment, which comprises the following steps:
s110, closing a water return pipeline and a waste water pipeline, opening a water outlet pipeline, accumulating the specified water making time of water making, and simultaneously increasing the pressure in the backwashing unit; acquiring the use condition of a first preprocessing unit according to the detection result of the detection unit;
s120, closing the water outlet pipeline, opening the waste water pipeline, and continuing for a first specified time T1;
s130, opening a water return pipeline, and continuing for a second designated time length T2;
s114, closing a water return pipeline and a waste water pipeline, and increasing the pressure in the backwashing unit to a specified pressure;
after completing step S110, step S120 and step S130 once, step S114 to step S130 are executed at least once in a loop. The step S114 to the step S130 are the pressurization cleaning again, and the more times of the circulation execution, the better the cleaning effect
The first designated duration T1 and the second designated duration T2 are determined according to the usage status of the first preprocessing unit, and steps S110 to S130 are performed in a loop. The operating time period T0 is positively correlated with the first designated time period T1 and the second designated time period T2.
Example four:
the embodiment provides an intelligent water purification method applied to an intelligent water purification system in the first embodiment, which comprises the following steps:
s110, closing a water return pipeline and a waste water pipeline, opening a water outlet pipeline, accumulating the specified water making time of water making, and simultaneously increasing the pressure in the backwashing unit; acquiring the use condition of a first preprocessing unit according to the detection result of the detection unit;
s112, standby appointed standby time length T3;
s120, closing the water outlet pipeline, opening the waste water pipeline, and continuing for a first specified time T1;
s130, opening a water return pipeline, and continuing for a second designated time length T2;
s114, closing a water return pipeline and a waste water pipeline, and increasing the pressure in the backwashing unit to a specified pressure;
after completing step S110, step S112, step S120 and step S130 once, step S114 to step S130 are executed at least once in a loop. The step S114 to the step S130 are the pressurization cleaning again, and the more times of the circulation execution, the better the cleaning effect
The first designated duration T1 and the second designated duration T2 are determined according to the usage status of the first preprocessing unit, and steps S110 to S130 are performed in a loop. The operating time period T0 is positively correlated with the first designated time period T1 and the second designated time period T2.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. An intelligence water purification system which characterized in that includes: the device comprises a water inlet pipeline, a waste water pipeline, a water outlet pipeline, a water return pipeline, a first pretreatment unit, a backwashing unit, a detection unit and a control unit, wherein the water inlet pipeline is connected to the first pretreatment unit, and liquid in the water inlet pipeline flows to the water outlet pipeline after flowing into the first pretreatment unit; when the water outlet pipeline is closed, liquid in the backwashing unit can flow back into the first pretreatment unit through the water return pipeline and is discharged from the waste water pipeline; the detection unit is used for detecting the use condition of the first pretreatment unit, and the control unit controls the working states of the waste water pipeline and the water return pipeline according to the use condition of the first pretreatment unit;
wherein the backwash unit comprises: a backwashing booster pump and a pressure stabilizing device are arranged between the first pretreatment unit and the backwashing tank, the pressure stabilizing device is communicated between the backwashing booster pump and the backwashing tank, the water return pipeline is connected in parallel with a pipeline provided with the backwashing booster pump and the pressure stabilizing device, the pressure of the backwashing tank is kept between 0.1MPa and 0.8MPa, and the backwashing tank is used for pressing liquid in the backwashing tank back to the first pretreatment unit by means of pressure;
the detection unit comprises a timing device or a flow detection device, the timing device is used for detecting the working time of an element in the intelligent water purification system, and the flow detection device is used for detecting the passing flow of a pipeline at a certain position in the intelligent water purification system.
2. The intelligent water purification system of claim 1, wherein the timing device is configured to detect an operating time of the backwash booster pump.
3. The intelligent water purification system according to claim 1, wherein a first control valve, a second control valve and a third control valve are sequentially arranged on the water outlet pipeline, the water return pipeline and the wastewater pipeline, and the first control valve, the second control valve and the third control valve are used for controlling the on-off of the pipelines where the first control valve, the second control valve and the third control valve are arranged; the timing device is used for detecting the opening duration of the first control valve, the second control valve or the third control valve.
4. The intelligent water purification system according to any one of claims 1-3, wherein the first pretreatment unit is one or a combination of any of PP cotton, activated carbon, PAC, ultrafiltration membrane, and microfiltration membrane cartridges.
5. The intelligent water purification system according to any one of claims 1-3, wherein the water outlet line is connected to a fine filtration unit, and a second pre-treatment unit and/or a post-treatment unit.
6. The intelligent water purification system of claim 5, wherein the fine filtration unit is one or a combination of any of RO membrane, nanofiltration membrane, ultrafiltration membrane and microfiltration membrane filter element; the second pretreatment unit is one or the combination of any more of PP cotton, active carbon, PAC, an ultrafiltration membrane and a microfiltration membrane filter core; the post-treatment unit is one or the combination of any more of active carbon, an ultrafiltration membrane, a carbon composite filter element, a microfiltration membrane and a carbon composite filter element.
7. An intelligent water purification method, characterized by comprising the intelligent water purification system as claimed in any one of claims 1 to 6, the intelligent water purification system being disposed inside a water purification device, the intelligent water purification method comprising the steps of:
s110, closing a water return pipeline and a waste water pipeline, opening a water outlet pipeline, accumulating the specified water making time of water making, and simultaneously increasing the pressure in the backwashing unit; acquiring the use condition of a first preprocessing unit according to the detection result of the detection unit;
s120, closing the water outlet pipeline, opening the waste water pipeline, and continuing for a first specified time T1;
s130, opening a water return pipeline, and continuing for a second designated time length T2;
the first designated duration T1 and the second designated duration T2 are determined according to the usage status of the first preprocessing unit, and steps S110 to S130 are performed in a loop.
8. The intelligent water purification method according to claim 7, further comprising the following steps after the step S130:
s114, closing a water return pipeline and a waste water pipeline, and increasing the pressure in the backwashing unit to a specified pressure;
then, step S120 to step S130 are executed, wherein the steps S114 to S130 are executed at least once in a loop.
9. The intelligent water purification method according to claim 8, further comprising the following steps after the step S110:
s112, standby for a specified standby time period T3.
10. The intelligent water purification method according to any one of claims 7-9, wherein the detection unit comprises a timing device for detecting a working time period T0 of elements in the intelligent water purification system, wherein the working time period T0 is positively correlated to the first designated time period T1 and the second designated time period T2.
11. The intelligent water purification method of claim 10, wherein when the operation time period T0 is less than a preset value, the first designated time period T1 and the second designated time period T2 are shortened;
when the operating time period T0 is greater than the preset value, the first designated time period T1 and the second designated time period T2 are extended.
12. The intelligent water purification method of claim 11, wherein the backwashing unit comprises a backwashing booster pump and a backwashing tank, the backwashing booster pump is operated to increase the pressure in the backwashing tank, and the operation time period T0 is the operation time period of the backwashing booster pump.
13. The intelligent water purification method of any one of claims 7-9, wherein the detection unit comprises a flow detection device, the flow detection device is used for detecting a passing flow L of a pipeline at a certain position in the intelligent water purification system, and the passing flow L is positively correlated with the first designated time period T1 and the second designated time period T2.
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