CN105642118A - Automatic backwash water purification system for backwash water purifier and washing method of system - Google Patents
Automatic backwash water purification system for backwash water purifier and washing method of system Download PDFInfo
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- CN105642118A CN105642118A CN201610106714.XA CN201610106714A CN105642118A CN 105642118 A CN105642118 A CN 105642118A CN 201610106714 A CN201610106714 A CN 201610106714A CN 105642118 A CN105642118 A CN 105642118A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
- B01D61/026—Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/12—Controlling or regulating
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- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/02—Forward flushing
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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
- C02F2209/445—Filter life
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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
- C02F2303/14—Maintenance of water treatment installations
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Abstract
The invention discloses an automatic backwash water purification system for a backwash water purifier and belongs to the technical field of water treatment. The system comprises a water inlet system, a sewage discharge system, a water outlet system and a control system, wherein the water inlet system comprises a first flow meter, a first water inlet solenoid valve, a CTO filter flask and a booster pump; the water outlet system comprises a first check valve, a second flow meter and a second check valve; the control system comprises a second high-pressure switch, a first high-pressure switch and a water faucet; the sewage discharge system comprises a third water inlet solenoid valve and a wastewater controller. The invention discloses a washing method of the system. The method comprises steps as follows: Step 1: the water production action is performed; Step 2: an RO filter flask is washed in the forward direction; Step 3: a channel is supplemented with pressure; Step 4: a pretreatment filter element is washed in the reverse direction; Step 5: impurities are cleaned thoroughly. According to the system and the washing method, the pretreatment filter element is subjected to backwash by the aid of the pressure of the water purifier, the impurities retained on the surface of the pretreatment filter element can be washed away, and the self-washing function is realized.
Description
Technical field
The present invention relates to a kind of flushing water cleaning systems for backwashing water purification apparatus, particularly relate to a kind of automatic backwash water cleaning systems for backwashing water purification apparatus and purging method thereof, belong to water-treatment technology field, relate to water filtration and water treatment technology.
Background technology
Household water filter filtration system is divided into coarse filtration system and essence filtration system, in order to obtain longer service life, filter elements at different levels must be arranged in good time pre-washing function, is generally divided into forward and rinses and back flush two kinds. In Figure 1A prior art of Figure of description, filter membrane water inlet is just being rinsed in schematic diagram, Fig. 1 C prior art as shown in filter membrane backwash schematic diagram with filter membrane in water outlet schematic diagram, Figure 1B prior art, and it is, with water, filter membrane water inlet side is carried out surface washing that forward rinses; It is simple that forward rinses water route design, controls less costly, but it is extremely low to remove film surface trapped substance usefulness; Back flush is with water, filter membrane to be rinsed from water outlet side is reverse, removes film surface trapped substance very thorough, but water route design is complex, must other addition power-equipment and control element, it is achieved relatively costly. Described on end: present stage household water filter is except in essence filtration system, the design of RO film has positive pre-washing function, and all the other filter elements are not designed with pre-washing function substantially.
At present, water purifier on market, except having positive pre-washing function except the design of RO membrane cartridge, all the other filter elements are substantially all and are not provided with pre-washing function, let alone only really can effectively extend the backwashing function of filter element life, its result is: coarse filtration system can only use the PP cotton filter element or other filter element that pore size filter is bigger, and particulate material in water can not thoroughly be intercepted, and RO film or NF film in essence filtration system can not get effective protection; If coarse filtration system adopts degree of precision such as UF filter element as pretreatment element, then can not get in good time removing because of the impurity being retained down, it is more prone to dirty stifled, it is heavy that the two keeps away it, the final PP cotton selecting filtering accuracy relatively low is used as preprocessing filter element (totle drilling cost frequently changed is relatively low), direct result is exactly that preprocessing filter element needs frequently to change, and essence filtration system filter element life also can terminate in advance.
Summary of the invention
The main purpose of the present invention is to solve to rinse at present the problems referred to above that water cleaning systems exists, there is provided a kind of when water purifier can be utilized standby the pressure of Spontaneous release preprocessing filter element is carried out backwash, the impurity being trapped in preprocessing filter element surface can be washed away from irrigation channel, reach filter element at different levels and all possess the automatic backwash water cleaning systems for backwashing water purification apparatus of self-cleaning function.
The purpose of the present invention can be passed through to adopt the following technical scheme that and reach:
A kind of automatic backwash water cleaning systems for backwashing water purification apparatus, including water inlet system, drainage, outlet system and control system; Cross current is passed through between described water inlet system and described drainage and described outlet system, cross current is passed through between described control system and described outlet system, described control system is for controlling being turned on and off of automatic backwash water cleaning systems, being communicated with RO filter flask between described water inlet system and described outlet system, described RO filter flask includes a RO filter flask and the 2nd RO filter flask;
Described water inlet system includes first-class gauge, the first entering water electromagnetic valve, CTO filter flask and booster pump, cross current is passed through between described first-class gauge and described first entering water electromagnetic valve, cross current is passed through between described CTO filter flask and described booster pump, described first entering water electromagnetic valve and described source water TDS detect and are communicated with between preprocessing filter element, described preprocessing filter element and described CTO filter flask and described first entering water electromagnetic valve each through cross current between sensor;
Described outlet system includes the first non-return valve, second gauge and the second non-return valve, by cross current between described second gauge and described second non-return valve, described first non-return valve and all pass through cross current with described water inlet system between described second non-return valve.
As a kind of preferred version, cross current is passed through between described CTO filter flask and described booster pump, water pipe between described CTO filter flask and described booster pump is provided with a source water TDS and detects sensor, and described source water TDS detects has one second entering water electromagnetic valve by cross current between sensor and described booster pump.
As a kind of preferred version, described control system includes the second high-voltage switch gear, the first high-voltage switch gear and faucet, cross current is passed through between described faucet and described second high-voltage switch gear and described first high-voltage switch gear, cross current is passed through between described second high-voltage switch gear and described first non-return valve, by cross current between described first high-voltage switch gear and described second non-return valve, the water pipe between described first high-voltage switch gear and described second non-return valve is communicated with a pure water TDS and detects sensor.
As a kind of preferred version, described drainage includes the 3rd entering water electromagnetic valve and waste water controller, cross current is passed through between described 3rd entering water electromagnetic valve and described waste water controller, it is communicated with one second electromagnetic valve between water side and a described RO filter flask of described waste water controller, cross current between described second electromagnetic valve and described CTO filter flask and described booster pump has one second entering water electromagnetic valve, the port of export of the port of export of described waste water controller and described second electromagnetic valve passes through cross current, one first electromagnetic valve is had by cross current between the port of export and the described preprocessing filter element of described waste water controller.
As a kind of preferred version, cross current is passed through between described second entering water electromagnetic valve and described 2nd RO filter flask, described second entering water electromagnetic valve also and passes through cross current between described 3rd entering water electromagnetic valve, cross current is passed through between described booster pump and a described RO filter flask, cross current is passed through between a described RO filter flask and described 3rd entering water electromagnetic valve, cross current is passed through between a described RO filter flask and described first non-return valve, cross current is passed through between a described RO filter flask and described 2nd RO filter flask, cross current is passed through between described 2nd RO filter flask and described second gauge, described preprocessing filter element adopts high accuracy UF membrane cartridge, described waste water controller is the waste water controller of 1200CC waste water ratio, described first flow is calculated as 3 shunting gauge, described second flow is calculated as 2 shunting gauge.
It is a further object to provide the purging method of a kind of automatic backwash water cleaning systems as described for backwashing water purification apparatus, comprised the steps:
Step 1: calculate accumulative water purification 20L by first-class gauge or prepare pure water 5L by the calculating of second gauge is accumulative, completing controlling the water circulation action;
Step 2: after completing controlling the water circulation action, opens booster pump forward and rinses two RO filter flasks, and washing time is 30s, and completes the high pressure of two RO filter flasks fills energy;
Step 3: after forward rinses RO filter flask, closes booster pump, opens first entering water electromagnetic valve passage supplementary pressure to water pipe, preprocessing filter element and CTO filter flask, and the persistent period is 5s;
Step 4: accumulation pressure utilizes the high hydraulic pressure in two the RO filter flasks being connected with booster pump, back flush preprocessing filter element after completing, and washing time is 15s;
Step 5: after back flush completes, utilizes tap water hydraulic, forward wash tub pipe passage, thorough removal of contamination.
As a kind of preferred version, described step 2 comprises the steps: open booster pump, the first entering water electromagnetic valve and the second electromagnetic valve, close the first electromagnetic valve, the 3rd entering water electromagnetic valve and the second entering water electromagnetic valve, start forward and rinse two RO filter flasks, washing time is 30s, water is by the first entering water electromagnetic valve water inlet pipe, after booster pump supercharging, discharged by the second electromagnetic valve battery valve passage, two RO filter flasks are carried out forward flushing, closing booster pump and above-mentioned all battery valves after continuing 30s, now in two RO filter flasks, hydraulic pressure is higher than running water pressure about 100%.
As a kind of preferred version, described step 3 comprises the steps: open the first entering water electromagnetic valve, close booster pump, the first electromagnetic valve, the 3rd entering water electromagnetic valve, the second entering water electromagnetic valve and the second electromagnetic valve, persistent period 5s, water pipe channel accumulation pressure, step 2 continues 30s, characteristic due to the water sorption of booster pump and one-way flow, the passage supplementary pressure of water pipe, preprocessing filter element and CTO filter flask, lower than tap water hydraulic, is maintained an equal level by the hydraulic pressure of preprocessing filter element and CTO filter flask to tap water hydraulic.
As a kind of preferred version, described step 4 comprises the steps: open the first electromagnetic valve and the second entering water electromagnetic valve, close booster pump, the first entering water electromagnetic valve, the 3rd entering water electromagnetic valve and the second electromagnetic valve, continue 15s, utilize the high hydraulic pressure in two the RO filter flasks being connected with booster pump, open the first electromagnetic valve.
As a kind of preferred version, described step 5 comprises the steps: open the first electromagnetic valve and the first entering water electromagnetic valve, close booster pump, the 3rd entering water electromagnetic valve, the second entering water electromagnetic valve and the second electromagnetic valve, continue 10s, utilize tap water hydraulic, forward wash tub pipe passage, thorough removal of contamination.
The Advantageous Effects of the present invention:
1, a kind of automatic backwash water cleaning systems for backwashing water purification apparatus of present invention design, it is made by existing control element, the order of connection and control logic are modified, when water purifier can be utilized standby, preprocessing filter element is carried out backwash by the pressure of Spontaneous release, the impurity being trapped in preprocessing filter element surface can be washed away from water pipe channel, reach filter element at different levels and a RO filter flask, the 2nd RO filter flask all possesses self-cleaning function, accordingly, it is not necessary to individually designed backflow water route, power source and corresponding electric control element.
2, a kind of automatic backwash water cleaning systems for backwashing water purification apparatus of present invention design, thus domestic water purifying machine wants to prepare matter and measures well sufficient pure water, the filter membrane of RO filter flask must reach the pressure of 0.5��0.7MPa, and when machine enters holding state, this pressure can be released naturally from water pipe concentration channels, the present invention utilizes the pressure in standby moment residual water tube passage to be back to a RO filter flask, it is achieved thereby that low cost backwash, substantially prolongs the service life of pretreatment system filter element at different levels, preprocessing filter element adopts high accuracy UF membrane cartridge, thus more reliably protecting the RO filter membrane of complete machine heart RO filter flask, save space simultaneously, achieve the miniaturization of backwashing water purification apparatus.
Accompanying drawing explanation
Figure 1A is filter membrane water inlet and water outlet schematic diagram in prior art of the present invention;
Figure 1B is that in prior art of the present invention, filter membrane is just rinsing schematic diagram;
Fig. 1 C is filter membrane backwash schematic diagram in prior art of the present invention;
Fig. 2 is automatic backwash water cleaning systems overall schematic of the present invention.
In figure: the first-class gauge of 1-, 2-the first entering water electromagnetic valve, 3-preprocessing filter element, 4-the first electromagnetic valve, 5-CTO filter flask, 6-source water TDS detects sensor, 7-the second entering water electromagnetic valve, 8-booster pump, 9-the oneth RO filter flask, 10-the 3rd entering water electromagnetic valve, 11-waste water controller, 12-the 2nd RO filter flask, 13-the first non-return valve, 14-the second high-voltage switch gear, 15-the second electromagnetic valve, 16-second gauge, 17-the second non-return valve, 18-pure water TDS detects sensor, 19-the first high-voltage switch gear, 20-faucet, 21-water pipe.
Detailed description of the invention
For make those skilled in the art clearly with clear and definite technical scheme, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
As in figure 2 it is shown, a kind of automatic backwash water cleaning systems for backwashing water purification apparatus, including water inlet system, drainage, outlet system and control system; Connected by water pipe 21 between described water inlet system with described drainage and described outlet system, connected by water pipe 21 between described control system and described outlet system, described control system is for controlling being turned on and off of automatic backwash water cleaning systems, being communicated with RO filter flask between described water inlet system and described outlet system, described RO filter flask includes RO filter flask 9 and a 2nd RO filter flask 12; Described water inlet system includes first-class gauge the 1, first entering water electromagnetic valve 2, CTO filter flask 5 and booster pump 8, connected by water pipe 21 between described first-class gauge 1 with described first entering water electromagnetic valve 2, connected by water pipe 21 between described CTO filter flask 5 with described booster pump 8, described first entering water electromagnetic valve 2 and described source water TDS detect and are communicated with preprocessing filter element 3 between sensor 6, connect each through water pipe 21 between described preprocessing filter element 3 with described CTO filter flask 5 and described first entering water electromagnetic valve 2; Described outlet system includes the first non-return valve 13, second gauge 16 and the second non-return valve 17, connected by water pipe 21 between described second gauge 16 with described second non-return valve 17, described first non-return valve 13 and all pass through water pipe 21 with described water inlet system between described second non-return valve 17 and connect.
As shown in Figure 2, a kind of preferred version as the present embodiment, connected by water pipe 21 between described CTO filter flask 5 with described booster pump 8, water pipe 21 between described CTO filter flask 5 and described booster pump 8 is provided with a source water TDS and detects sensor 6, and described source water TDS detects and is communicated with one second entering water electromagnetic valve 7 by water pipe 21 between sensor 6 and described booster pump 8.
As shown in Figure 2, a kind of preferred version as the present embodiment, described control system includes the second high-voltage switch gear 14, first high-voltage switch gear 19 and faucet 20, connected by water pipe 21 between described faucet 20 with described second high-voltage switch gear 14 and described first high-voltage switch gear 19, connected by water pipe 21 between described second high-voltage switch gear 14 with described first non-return valve 13, connected by water pipe 21 between described first high-voltage switch gear 19 with described second non-return valve 17, water pipe 21 between described first high-voltage switch gear 19 and described second non-return valve 17 is communicated with a pure water TDS and detects sensor 18.
As shown in Figure 2, a kind of preferred version as the present embodiment, described drainage includes the 3rd entering water electromagnetic valve 10 and waste water controller 11, connected by water pipe 21 between described 3rd entering water electromagnetic valve 10 and described waste water controller 11, it is communicated with one second electromagnetic valve 15 between water side and a described RO filter flask 9 of described waste water controller 11, water pipe 21 between described second electromagnetic valve 15 and described CTO filter flask 5 and described booster pump 8 is communicated with one second entering water electromagnetic valve 7, the port of export of described waste water controller 11 is connected by water pipe 21 with the port of export of described second electromagnetic valve 15, it is communicated with one first electromagnetic valve 4 by water pipe 21 between the port of export and the described preprocessing filter element 3 of described waste water controller 11.
As shown in Figure 2, a kind of preferred version as the present embodiment, connected by water pipe 21 between described second entering water electromagnetic valve 7 and described 2nd RO filter flask 12, described second entering water electromagnetic valve 7 is also connected by water pipe 21 with between described 3rd entering water electromagnetic valve 10, connected by water pipe 21 between described booster pump 8 with a described RO filter flask 9, connected by water pipe 21 between a described RO filter flask 9 and described 3rd entering water electromagnetic valve 10, connected by water pipe 21 between a described RO filter flask 9 with described first non-return valve 13, connected by water pipe 21 between a described RO filter flask 9 and described 2nd RO filter flask 12, connected by water pipe 21 between described 2nd RO filter flask 12 and described second gauge 16.
As shown in Figure 2, as a kind of preferred version of the present embodiment, described preprocessing filter element 3 adopts high accuracy UF membrane cartridge, and described waste water controller 11 is the waste water controller of 1200CC waste water ratio, described first-class gauge 1 is 3 shunting gauge, and described second gauge 16 is 2 shunting gauge.
Another purpose of the present embodiment there is provided the purging method of a kind of automatic backwash water cleaning systems as described for backwashing water purification apparatus, comprises the steps:
Step 1: calculate accumulative water purification 20L by first-class gauge 1 or prepare pure water 5L by second gauge 16 calculating is accumulative, completing controlling the water circulation action;
Step 2: after completing controlling the water circulation action, opens booster pump 8 forward and rinses two RO filter flasks 9 and 12, and washing time is 30s, and completes the high pressure of two RO filter flasks 9 and 12 fills energy;
Step 3: after forward rinses RO filter flask, closes booster pump 8, opens the first entering water electromagnetic valve 2 passage supplementary pressure to water pipe 21, preprocessing filter element 3 and CTO filter flask 5, and the persistent period is 5s;
Step 4: accumulation pressure utilizes the high hydraulic pressure in two the RO filter flasks 9 and 12 being connected with booster pump 8, back flush preprocessing filter element 3 after completing, and washing time is 15s;
Step 5: after back flush completes, utilizes tap water hydraulic, forward wash tub pipe 21 passage, thorough removal of contamination.
As shown in Figure 2, a kind of preferred version as the present embodiment, described step 2 comprises the steps: open booster pump 8, first entering water electromagnetic valve 2 and the second electromagnetic valve 15, close the first electromagnetic valve 4, 3rd entering water electromagnetic valve 10 and the second entering water electromagnetic valve 7, start forward and rinse two RO filter flasks 9 and 12, washing time is 30s, water is by the first entering water electromagnetic valve 2 water inlet pipe 21, after booster pump 8 supercharging, discharged by the second electromagnetic valve 15 battery valve passage, two RO filter flasks 9 and 12 are carried out forward flushing, booster pump 8 and above-mentioned all battery valves is closed after continuing 30s, now in two RO filter flasks 9 and 12, hydraulic pressure is higher than running water pressure about 100%.
As shown in Figure 2, a kind of preferred version as the present embodiment, described step 3 comprises the steps: open the first entering water electromagnetic valve 2, close booster pump 8, first electromagnetic valve 4, 3rd entering water electromagnetic valve 10, second entering water electromagnetic valve 7 and the second electromagnetic valve 15, persistent period 5s, water pipe 21 passage accumulation pressure, step 2 continues 30s, characteristic due to the water sorption of booster pump 8 and one-way flow, the hydraulic pressure of preprocessing filter element 3 and CTO filter flask 5 is lower than tap water hydraulic, now open the first entering water electromagnetic valve 2, to water pipe 21, the passage supplementary pressure of preprocessing filter element 3 and CTO filter flask 5 maintains an equal level to tap water hydraulic.
As shown in Figure 2, a kind of preferred version as the present embodiment, described step 4 comprises the steps: open the first electromagnetic valve 4 and the second entering water electromagnetic valve 7, close booster pump the 8, first entering water electromagnetic valve the 2, the 3rd entering water electromagnetic valve 10 and the second electromagnetic valve 15, continue 15s, utilize the high hydraulic pressure in two the RO filter flasks 9 and 12 being connected with booster pump 8, back flush preprocessing filter element 3, open the first electromagnetic valve 4.
As shown in Figure 2, a kind of preferred version as the present embodiment, described step 5 comprises the steps: open the first electromagnetic valve 4 and the first entering water electromagnetic valve 2, close booster pump the 8, the 3rd entering water electromagnetic valve the 10, second entering water electromagnetic valve 7 and the second electromagnetic valve 15, continue 10s, utilize tap water hydraulic, forward wash tub pipe 21 passage, thorough removal of contamination.
In sum, a kind of automatic backwash water cleaning systems for backwashing water purification apparatus of present invention design, it is made by existing control element, the order of connection and control logic are modified, when water purifier can be utilized standby, preprocessing filter element is carried out backwash by the pressure of Spontaneous release, the impurity being trapped in preprocessing filter element surface can be washed away from water pipe channel, reach filter element at different levels and a RO filter flask, the 2nd RO filter flask all possesses self-cleaning function, accordingly, it is not necessary to individually designed backflow water route, power source and corresponding electric control element.
A kind of automatic backwash water cleaning systems for backwashing water purification apparatus of present invention design, thus domestic water purifying machine wants to prepare matter and measures well sufficient pure water, the filter membrane of RO filter flask must reach the pressure of 0.5��0.7MPa, and when machine enters holding state, this pressure can be released naturally from water pipe concentration channels, the present invention utilizes the pressure in standby moment residual water tube passage to be back to a RO filter flask, it is achieved thereby that low cost backwash, substantially prolongs the service life of pretreatment system filter element at different levels, preprocessing filter element adopts high accuracy UF membrane cartridge, thus more reliably protecting the RO filter membrane of complete machine heart RO filter flask, save space simultaneously, achieve the miniaturization of backwashing water purification apparatus.
The above; it is only the preferred embodiment of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in scope disclosed in this invention; it is equal to replacement according to technical scheme and design thereof or is changed, being broadly fallen into protection scope of the present invention.
Claims (10)
1. the automatic backwash water cleaning systems for backwashing water purification apparatus, it is characterised in that: include water inlet system, drainage, outlet system and control system; Connected by water pipe (21) between described water inlet system with described drainage and described outlet system, connected by water pipe (21) between described control system and described outlet system, described control system is for controlling being turned on and off of automatic backwash water cleaning systems, being communicated with RO filter flask between described water inlet system and described outlet system, described RO filter flask includes a RO filter flask (9) and the 2nd RO filter flask (12);
Described water inlet system includes first-class gauge (1), first entering water electromagnetic valve (2), CTO filter flask (5) and booster pump (8), connected by water pipe (21) between described first-class gauge (1) with described first entering water electromagnetic valve (2), connected by water pipe (21) between described CTO filter flask (5) and described booster pump (8), described first entering water electromagnetic valve (2) and described source water TDS detect and are communicated with preprocessing filter element (3) between sensor (6), connect each through water pipe (21) between described preprocessing filter element (3) with described CTO filter flask (5) and described first entering water electromagnetic valve (2),
Described outlet system includes the first non-return valve (13), second gauge (16) and the second non-return valve (17), connected by water pipe (21) between described second gauge (16) with described second non-return valve (17), all connected by water pipe (21) with described water inlet system between described first non-return valve (13) and described second non-return valve (17).
2. a kind of automatic backwash water cleaning systems for backwashing water purification apparatus according to claim 1, it is characterized in that: connected by water pipe (21) between described CTO filter flask (5) and described booster pump (8), water pipe (21) between described CTO filter flask (5) and described booster pump (8) is provided with a source water TDS and detects sensor (6), and described source water TDS detects and is communicated with one second entering water electromagnetic valve (7) by water pipe (21) between sensor (6) and described booster pump (8).
3. a kind of automatic backwash water cleaning systems for backwashing water purification apparatus according to claim 2, it is characterized in that: described control system includes the second high-voltage switch gear (14), first high-voltage switch gear (19) and faucet (20), connected by water pipe (21) between described faucet (20) with described second high-voltage switch gear (14) and described first high-voltage switch gear (19), connected by water pipe (21) between described second high-voltage switch gear (14) with described first non-return valve (13), connected by water pipe (21) between described first high-voltage switch gear (19) with described second non-return valve (17), water pipe (21) between described first high-voltage switch gear (19) and described second non-return valve (17) is communicated with a pure water TDS and detects sensor (18).
4. a kind of automatic backwash water cleaning systems for backwashing water purification apparatus according to claim 3, it is characterized in that: described drainage includes the 3rd entering water electromagnetic valve (10) and waste water controller (11), connected by water pipe (21) between described 3rd entering water electromagnetic valve (10) and described waste water controller (11), it is communicated with one second electromagnetic valve (15) between water side and a described RO filter flask (9) of described waste water controller (11), water pipe (21) between described second electromagnetic valve (15) and described CTO filter flask (5) and described booster pump (8) is communicated with one second entering water electromagnetic valve (7), the port of export of described waste water controller (11) is connected by water pipe (21) with the port of export of described second electromagnetic valve (15), it is communicated with one first electromagnetic valve (4) by water pipe (21) between the port of export and the described preprocessing filter element (3) of described waste water controller (11).
5. a kind of automatic backwash water cleaning systems for backwashing water purification apparatus according to claim 4, it is characterized in that: connected by water pipe (21) between described second entering water electromagnetic valve (7) with described 2nd RO filter flask (12), described second entering water electromagnetic valve (7) is also connected by water pipe (21) with between described 3rd entering water electromagnetic valve (10), connected by water pipe (21) between described booster pump (8) with a described RO filter flask (9), connected by water pipe (21) between a described RO filter flask (9) and described 3rd entering water electromagnetic valve (10), connected by water pipe (21) between a described RO filter flask (9) and described first non-return valve (13), connected by water pipe (21) between a described RO filter flask (9) and described 2nd RO filter flask (12), connected by water pipe (21) between described 2nd RO filter flask (12) and described second gauge (16), described preprocessing filter element (3) adopts high accuracy UF membrane cartridge, the waste water controller that described waste water controller (11) is 1200CC waste water ratio, described first-class gauge (1) is 3 shunting gauge, described second gauge (16) is 2 shunting gauge.
6. a purging method for the automatic backwash water cleaning systems for backwashing water purification apparatus as described in claim 1-5 any one, comprises the steps:
Step 1: calculate accumulative water purification 20L by first-class gauge (1) or prepare pure water 5L by second gauge (16) calculating is accumulative, completing controlling the water circulation action;
Step 2: after completing controlling the water circulation action, opens booster pump (8) forward and rinses two RO filter flasks (9 and 12), and washing time is 30s, and completes the high pressure of two RO filter flasks (9 and 12) fills energy;
Step 3: after forward rinses RO filter flask, closes booster pump (8), opens the first entering water electromagnetic valve (2) the passage supplementary pressure to water pipe (21), preprocessing filter element (3) and CTO filter flask (5), and the persistent period is 5s;
Step 4: accumulation pressure utilizes the high hydraulic pressure in two the RO filter flasks (9 and 12) being connected with booster pump (8), back flush preprocessing filter element (3) after completing, and washing time is 15s;
Step 5: after back flush completes, utilizes tap water hydraulic, forward wash tub pipe (21) passage, thorough removal of contamination.
7. a kind of automatic backwash water cleaning systems for backwashing water purification apparatus according to claim 6, it is characterized in that: described step 2 comprises the steps: open booster pump (8), first entering water electromagnetic valve (2) and the second electromagnetic valve (15), close the first electromagnetic valve (4), 3rd entering water electromagnetic valve (10) and the second entering water electromagnetic valve (7), start forward and rinse two RO filter flasks (9 and 12), washing time is 30s, water is by the first entering water electromagnetic valve (2) water inlet pipe (21), after booster pump (8) supercharging, discharged by the second electromagnetic valve (15) battery valve passage, two RO filter flasks (9 and 12) are carried out forward flushing, booster pump (8) and above-mentioned all battery valves is closed after continuing 30s, now two interior hydraulic pressure of RO filter flask (9 and 12) are higher than running water pressure about 100%.
8. a kind of automatic backwash water cleaning systems for backwashing water purification apparatus according to claim 6, it is characterized in that: described step 3 comprises the steps: open the first entering water electromagnetic valve (2), close booster pump (8), first electromagnetic valve (4), 3rd entering water electromagnetic valve (10), second entering water electromagnetic valve (7) and the second electromagnetic valve (15), persistent period 5s, water pipe (21) passage accumulation pressure, step 2 continues 30s, characteristic due to the water sorption of booster pump (8) and one-way flow, the hydraulic pressure of preprocessing filter element (3) and CTO filter flask (5) is lower than tap water hydraulic, now open the first entering water electromagnetic valve (2), to water pipe (21), the passage supplementary pressure of preprocessing filter element (3) and CTO filter flask (5) maintains an equal level to tap water hydraulic.
9. a kind of automatic backwash water cleaning systems for backwashing water purification apparatus according to claim 6, it is characterized in that: described step 4 comprises the steps: open the first electromagnetic valve (4) and the second entering water electromagnetic valve (7), close booster pump (8), the first entering water electromagnetic valve (2), the 3rd entering water electromagnetic valve (10) and the second electromagnetic valve (15), continue 15s, utilize the high hydraulic pressure in two the RO filter flasks (9 and 12) being connected with booster pump (8), back flush preprocessing filter element (3), opens the first electromagnetic valve (4).
10. a kind of automatic backwash water cleaning systems for backwashing water purification apparatus according to claim 6, it is characterized in that: described step 5 comprises the steps: open the first electromagnetic valve (4) and the first entering water electromagnetic valve (2), close booster pump (8), the 3rd entering water electromagnetic valve (10), the second entering water electromagnetic valve (7) and the second electromagnetic valve (15), continue 10s, utilize tap water hydraulic, forward wash tub pipe (21) passage, thorough removal of contamination.
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| CN108341543A (en) * | 2018-03-01 | 2018-07-31 | 北京自由华程环保技术有限公司 | A kind of water purification system and its application method |
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