CN113121027A - Water treatment system and water treatment method - Google Patents
Water treatment system and water treatment method Download PDFInfo
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- CN113121027A CN113121027A CN201911398604.5A CN201911398604A CN113121027A CN 113121027 A CN113121027 A CN 113121027A CN 201911398604 A CN201911398604 A CN 201911398604A CN 113121027 A CN113121027 A CN 113121027A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 862
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000012528 membrane Substances 0.000 claims abstract description 166
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 163
- 238000002156 mixing Methods 0.000 claims abstract description 126
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 108
- 239000008213 purified water Substances 0.000 claims abstract description 49
- 238000011045 prefiltration Methods 0.000 claims description 20
- 238000011084 recovery Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 28
- 229910052799 carbon Inorganic materials 0.000 description 26
- 230000002401 inhibitory effect Effects 0.000 description 23
- 230000005764 inhibitory process Effects 0.000 description 16
- 239000008399 tap water Substances 0.000 description 12
- 235000020679 tap water Nutrition 0.000 description 12
- 239000007787 solid Substances 0.000 description 10
- 230000007423 decrease Effects 0.000 description 8
- 238000011001 backwashing Methods 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 241001122767 Theaceae Species 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 239000008267 milk Substances 0.000 description 4
- 210000004080 milk Anatomy 0.000 description 4
- 235000013336 milk Nutrition 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000008373 coffee flavor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a water treatment system and a water treatment method, wherein the water treatment method comprises the following steps: allowing raw water to be treated by an ultrafiltration membrane filter element to obtain pre-treated water; allowing the pre-water to be treated by a reverse osmosis membrane filter element to obtain post-water; and mixing the water discharged from the reverse osmosis water outlet of the reverse osmosis membrane filter element and the water discharged from the ultrafiltration water outlet of the ultrafiltration membrane filter element to obtain purified water.
Description
Technical Field
The invention relates to the field of water treatment, in particular to a water treatment system and a water treatment method.
Background
In the commercial fields of coffee shops, milk tea shops and the like, at present, after tap water is boiled by a water boiler, coffee and milk tea are brewed by directly using boiled water. Tap water is obtained by treating raw water from a water source such as a river, a lake, or a river by a water supply company, and since the water supply company uses chlorine to treat harmful substances such as impurities in the raw water in the water source, a small amount of impurities, residual chlorine, and the like inevitably exist in the tap water. Even if the tap water is boiled by the water boiler, a little impurity still exists in the boiled tap water, the impurities and residual chlorine remaining in the tap water affect the quality and taste of coffee and milk tea, for example, the residual chlorine causes peculiar smell in the tap water to affect the taste of the coffee and milk tea, the residual chlorine even affects human health, and the impurities such as calcium and magnesium ions remaining in the tap water cause the water boiler to be blocked. In addition, some merchants can directly use tap water to make ice in order to save cost, which directly results in impurities and residual chlorine being left in ice blocks to seriously affect the health of consumers.
In order to avoid the adverse effect of tap water on coffee, some coffee shops brew coffee with distilled water, mineral water, or the like. The high purity of the distilled water tends to increase the extraction rate of coffee, and tends to cause the extraction of the component that should not be extracted, which once occurred directly affects the taste of coffee, for example, when the component that should not be extracted is extracted, the taste of coffee tends to be bitter and the coffee tends to be strong. Although mineral water is not as pure as distilled water and does not cause the problem of coffee brewed with distilled water, mineral water contains calcium, magnesium and other components, which makes water harder and makes it difficult to develop coffee flavor.
Disclosure of Invention
It is an object of the present invention to provide a water treatment system and method of water treatment wherein the water treatment system allows the Total Dissolved Solids (TDS) of the purified water to be adjusted.
An object of the present invention is to provide a water treatment system and a water treatment method, wherein the water treatment system allows pre-water treated by an ultrafiltration membrane cartridge and post-water treated by a reverse osmosis membrane cartridge to be mixed to obtain purified water, and the total amount of soluble solids of the purified water can be conveniently adjusted by adjusting the amount of the pre-water and the amount of the post-water.
It is an object of the present invention to provide a water treatment system and a water treatment method, wherein the water treatment system is capable of automatically adjusting the total amount of dissolved solids of purified water.
It is an object of the present invention to provide a water treatment system and a water treatment method, wherein the water treatment system is capable of adjusting the total amount of dissolved solids of purified water in real time.
It is an object of the present invention to provide a water treatment system and a water treatment method wherein the water treatment system is capable of backwashing the ultrafiltration membrane cartridge. For example, in a preferred example of the present invention, the water treatment system can backwash the ultrafiltration membrane filter element with raw water, and in another preferred example of the present invention, the water treatment system can backwash the ultrafiltration membrane filter element with purified water to ensure backwashing effect on the ultrafiltration membrane filter element.
According to one aspect of the present invention, there is provided a water treatment system comprising:
the filter comprises a front filter element unit, a back filter element unit and a front filter element unit, wherein the front filter element unit is provided with a front water inlet and a front water outlet corresponding to the front water inlet; and
a water mixing unit, wherein the water mixing unit further comprises:
a reverse osmosis membrane cartridge, wherein the reverse osmosis membrane cartridge has a reverse osmosis water inlet and a reverse osmosis water outlet corresponding to the reverse osmosis water inlet, wherein the reverse osmosis water inlet of the reverse osmosis membrane cartridge is communicated with the front water outlet of the front cartridge unit; and
the water mixer is provided with a mixed water inlet and a mixed water outlet corresponding to the mixed water inlet, the mixed water inlet of the water mixer is communicated with the front water outlet of the front filter element unit, and the mixed water outlet of the water mixer is communicated with the reverse osmosis water outlet of the reverse osmosis membrane filter element.
According to an embodiment of the present invention, the pre-filter unit includes an ultrafiltration membrane filter element having an ultrafiltration water inlet and an ultrafiltration water outlet corresponding to the ultrafiltration water inlet, wherein the reverse osmosis water inlet of the reverse osmosis membrane filter element and the mixed water inlet of the water mixer are respectively communicated with the ultrafiltration water outlet of the ultrafiltration membrane filter element.
According to an embodiment of the present invention, the water mixer includes a water mixing pipe and a water mixing valve disposed in a middle portion of the water mixing pipe, and two end portions of the water mixing pipe respectively form the water mixing inlet and the water mixing outlet.
According to an embodiment of the invention, the water treatment system further comprises a control valve and a water pump, wherein the control valve and the water pump are sequentially connected in series between the pre-filter element unit and the water mixing unit.
According to an embodiment of the invention, the water treatment system further comprises a pressure barrel having a barrel opening, wherein the barrel opening of the pressure barrel is communicated with the reverse osmosis water outlet of the reverse osmosis membrane filter element.
According to an embodiment of the invention, the water treatment system further comprises a water quality detector, wherein the water quality detector is connected in series between the water mixing unit and a water using end for detecting the TDS value of purified water obtained by mixing the post-water discharged from the reverse osmosis water outlet of the reverse osmosis membrane filter element and the pre-water discharged from the water mixer outlet of the water mixer.
According to one embodiment of the invention, the mixing valve is an electronic mixing valve and the operational state of the mixing valve is associated with the water quality detector to allow the operational state of the mixer to be adjusted based on the TDS value detected by the water quality detector.
According to one embodiment of the invention, the water pump is a variable frequency water pump and the operating state of the water pump is associated with the water quality detector to allow the operating state of the water pump to be adjusted based on the TDS value detected by the water quality detector.
According to one embodiment of the invention, the voltage of the water pump is associated with the water quality detector to allow the voltage of the water pump to be adjusted based on the TDS value detected by the water quality detector.
According to an embodiment of the present invention, the water treatment system further includes a first valve body, a second valve body and a third valve body, wherein the first valve body has a first port and a second port corresponding to the first port, the second valve body has a third port and a fourth port corresponding to the third port, the third valve body has a fifth port and a sixth port corresponding to the fifth port, wherein the first port of the first valve body can be communicated with a water source end, and the second port of the first valve body is communicated with the front water inlet of the front cartridge unit, the third port of the second valve body can be communicated with the water source end, and the fourth port of the second valve body is communicated with the front water outlet of the front cartridge unit, the fifth valve port of the third valve body is communicated with the front water inlet of the front filter element unit, and the sixth valve body of the third valve body can be communicated with a recovery waterway.
According to an embodiment of the present invention, the water treatment system further includes a first valve body, a second valve body and a third valve body, wherein the first valve body has a first port and a second port corresponding to the first port, the second valve body has a third port and a fourth port corresponding to the third port, the third valve body has a fifth port and a sixth port corresponding to the fifth port, wherein the first port of the first valve body can be communicated with a water source end, and the second port of the first valve body is communicated with the front water inlet of the front cartridge unit, the third port of the second valve body can be communicated with the barrel port of the pressure barrel, and the fourth port of the second valve body is communicated with the front water outlet of the front cartridge unit, the fifth valve port of the third valve body is communicated with the front water inlet of the front filter element unit, and the sixth valve body of the third valve body can be communicated with a recovery waterway.
According to an embodiment of the invention, the water treatment system further comprises a fourth valve body, the fourth valve body is provided with a seventh valve port and an eighth valve port corresponding to the seventh valve port, wherein the seventh valve port of the fourth valve body is communicated with the reverse osmosis water outlet of the reverse osmosis membrane filter element, and the eighth valve port of the fourth valve body can be communicated with the recovery water circuit.
According to another aspect of the present invention, there is further provided a water treatment method, wherein the water treatment method comprises the steps of:
(a) allowing raw water to be treated by a pre-filter unit to obtain pre-water;
(b) allowing the pre-water to be treated by a reverse osmosis membrane filter element to obtain post-water; and
(c) mixing the water discharged from the reverse osmosis water outlet of the reverse osmosis membrane filter element and the water discharged from the front water outlet of the front filter element unit to obtain purified water.
According to an embodiment of the present invention, in the step (c), the front water outlet of the front filter element unit and the reverse osmosis water outlet of the reverse osmosis membrane filter element are communicated through a water mixing pipe, so as to mix the rear water discharged from the reverse osmosis water outlet of the reverse osmosis membrane filter element and the front water discharged from the front water inlet of the front filter element unit.
According to an embodiment of the present invention, in the step (c), the flow rate of the pre-water flowing through the mixing pipe is controlled by a mixing valve disposed at a middle portion of the mixing pipe to control and adjust the TDS value of the purified water.
According to an embodiment of the present invention, the water treatment method further comprises the steps of: and (c) storing the postposition water discharged from the reverse osmosis water outlet of the reverse osmosis membrane filter element into a pressure barrel, and mixing the postposition water discharged from the pressure barrel and the prepositive water discharged from the prepositive water outlet of the prepositive filter element unit into purified water in the step (c).
According to an embodiment of the present invention, the water treatment method further comprises the steps of: the TDS value of the purified water is detected by a water quality detector.
According to an embodiment of the present invention, the water treatment method further comprises the steps of: detect the TDS value of the purified water through a water quality detector to follow-up on the basis of water quality detector detects the TDS value and adjusts the water yield of the leading water of flowing through mix water pipe in real time.
According to an embodiment of the invention, in the above method, raw water is allowed to enter the ultrafiltration membrane cartridge from a cartridge water inlet of an ultrafiltration membrane cartridge of the pre-cartridge unit and is discharged from a cartridge water outlet of the ultrafiltration membrane cartridge.
According to one embodiment of the invention, in the above method, the post-water stored in the pressure tank is allowed to enter the ultrafiltration membrane cartridge from a cartridge water inlet of an ultrafiltration membrane cartridge of the pre-cartridge unit and to exit the ultrafiltration membrane cartridge from an ultrafiltration water inlet of the ultrafiltration membrane cartridge.
According to another aspect of the present invention, there is further provided a water treatment system comprising:
the pre-filter element unit comprises an ultrafiltration membrane filter element, and the ultrafiltration membrane filter element is provided with an ultrafiltration water inlet and an ultrafiltration water outlet corresponding to the ultrafiltration water inlet; and
a water mixing unit, wherein the water mixing unit comprises a reverse osmosis membrane filter element and a water mixer, wherein the reverse osmosis membrane filter element is provided with a reverse osmosis water inlet and a reverse osmosis water outlet corresponding to the reverse osmosis water inlet, the reverse osmosis water inlet of the reverse osmosis membrane filter element is communicated with the ultrafiltration water outlet of the ultrafiltration membrane filter element, wherein the water mixer comprises a water mixing pipe and a water mixing valve arranged in the middle of the water mixing pipe, the water mixer is provided with a mixed water inlet and a mixed water outlet corresponding to the mixed water inlet, the two ends of the water mixing pipe are respectively provided with the mixed water inlet and the mixed water outlet, wherein the mixed water inlet of the water mixer is communicated with the filter element water outlet of the ultrafiltration membrane filter element, and the mixed water outlet of the water mixer is communicated with the reverse osmosis water outlet of the reverse osmosis membrane filter element.
According to an embodiment of the invention, the water treatment device further comprises a control valve and a water pump, wherein the control valve and the water pump are sequentially connected in series between the pre-filter element unit and the water mixing unit.
According to an embodiment of the invention, the water treatment device further comprises a pressure barrel having a barrel opening, wherein the barrel opening of the pressure barrel is communicated with the reverse osmosis water outlet of the reverse osmosis membrane filter element.
According to an embodiment of the present invention, the water treatment device further comprises a water quality detector, wherein the water quality detector is connected in series between the water mixing unit and a water consuming end for detecting a TDS value of purified water obtained by mixing the water discharged from the reverse osmosis water outlet of the reverse osmosis membrane filter element and the water discharged from the front water outlet of the water mixer.
According to one embodiment of the invention, the mixing valve is an electronic mixing valve and the operational state of the mixing valve is associated with the water quality detector to allow the operational state of the mixer to be adjusted based on the TDS value detected by the water quality detector.
According to one embodiment of the invention, the water pump is a variable frequency water pump and the operating state of the water pump is associated with the water quality detector to allow the operating state of the water pump to be adjusted based on the TDS value detected by the water quality detector.
According to one embodiment of the invention, the voltage of the water pump is associated with the water quality detector to allow the voltage of the water pump to be adjusted based on the TDS value detected by the water quality detector.
According to one embodiment of the invention, the pre-filter unit comprises a scale inhibiting carbon rod filter element which is connected in series between the ultrafiltration membrane filter element and the control valve.
According to one embodiment of the invention, the pre-filter unit comprises a scale inhibiting carbon rod filter element, and the control valve is connected in series between the ultrafiltration membrane filter element and the scale inhibiting carbon rod filter element.
According to one embodiment of the invention, the water treatment device further comprises a flow meter, wherein the flow meter is connected in series between the reverse osmosis membrane filter element and the water quality detector.
According to one embodiment of the invention, the water mixing unit comprises a check valve, and the check valve is connected in series between the reverse osmosis membrane filter element and the water mixing pipe.
According to one embodiment of the invention, the water mixing unit comprises a water circuit switch, and the water circuit switch is connected in series between the reverse osmosis membrane filter element and the water mixing pipe.
According to an embodiment of the invention, the water mixing unit comprises a water circuit switch, and the water circuit switch is connected in series between the check valve and the water mixing pipe.
According to an embodiment of the invention, the water treatment device further comprises a rear filter element unit, and the rear filter element unit is connected in series between the water mixing unit and a water using end.
According to another aspect of the present invention, there is further provided a water treatment apparatus, comprising:
a first valve body;
a second valve body;
a third valve body;
the pre-filter element unit comprises an ultrafiltration membrane filter element, wherein the second valve port of the first valve body is communicated with an ultrafiltration water inlet of the ultrafiltration membrane filter element, the fourth valve port of the second valve body is communicated with an ultrafiltration water outlet of the ultrafiltration membrane filter element, and the fifth valve port of the third valve body is communicated with an ultrafiltration water inlet of the ultrafiltration membrane filter element; and
the water mixing unit comprises a reverse osmosis membrane filter element and a water mixer, wherein a reverse osmosis water inlet of the reverse osmosis membrane filter element is communicated with an ultrafiltration water outlet of the ultrafiltration membrane filter element, a mixed water inlet of the water mixer is communicated with an ultrafiltration water outlet of the ultrafiltration membrane filter element, and a mixed water outlet of the water mixer is communicated with the reverse osmosis water outlet of the reverse osmosis membrane filter element.
According to one embodiment of the invention, the first port of the first valve body and the third port of the second valve body are in communication.
According to one embodiment of the invention, the water treatment device further comprises a pressure barrel, and a barrel opening of the pressure barrel is communicated with the reverse osmosis water outlet of the reverse osmosis membrane filter element.
According to an embodiment of the present invention, the third valve port of the second valve body is communicated with a bung of the pressure barrel.
According to an embodiment of the invention, the water treatment device further comprises a fourth valve body, and the seventh valve port of the fourth valve body is communicated with the reverse osmosis water outlet of the reverse osmosis membrane filter element.
According to an embodiment of the present invention, the water treatment device further comprises a control valve and a water pump connected to the control valve, wherein a control valve water inlet of the control valve is connected to the ultrafiltration water outlet of the ultrafiltration membrane filter element, a water pump water outlet of the water pump is connected to the reverse osmosis water inlet of the reverse osmosis membrane filter element, and a water pump water outlet of the water pump is connected to the mixed water inlet of the water mixer.
According to one embodiment of the invention, the preposed filter element unit comprises a scale inhibition carbon rod filter element, a scale inhibition water inlet of the scale inhibition carbon rod filter element is communicated with an ultrafiltration water outlet of the ultrafiltration membrane filter element, and a scale inhibition water outlet of the scale inhibition carbon rod filter element is communicated with a control valve water inlet of the control valve.
According to one embodiment of the invention, the preposed filter element unit comprises a scale inhibition carbon rod filter element, a scale inhibition water inlet of the scale inhibition carbon rod filter element is communicated with a water pump water outlet of the water pump, a scale inhibition water inlet of the scale inhibition carbon rod filter element is communicated with a reverse osmosis water inlet of the reverse osmosis membrane filter element, and a scale inhibition water inlet of the scale inhibition carbon rod filter element is communicated with a mixed water inlet of the water mixer.
According to one embodiment of the invention, the water mixing unit comprises a check valve, a check valve water inlet of the check valve is communicated with a reverse osmosis water outlet of the reverse osmosis membrane filter element, and a check valve water outlet of the check valve is communicated with a mixed water outlet of the water mixer.
According to one embodiment of the invention, the water mixing unit comprises a water path switch, a switch water inlet of the water path switch is communicated with the reverse osmosis water outlet of the reverse osmosis membrane filter element, and a switch water outlet of the water path switch is communicated with the mixed water outlet of the water mixer.
According to an embodiment of the invention, the water treatment device further comprises a rear filter element unit, and the rear filter element unit is connected in series between the water mixing unit and a water using end.
According to an embodiment of the invention, the water treatment device further comprises a flow meter connected in series between the water mixing unit and the rear filter element unit
According to an embodiment of the invention, the water treatment device further comprises a water quality detector, and the water quality detector is connected in series between the water mixing unit and the post-filter element unit.
Drawings
FIG. 1 is a schematic diagram of a water treatment system according to a preferred embodiment of the present invention.
FIG. 2 is a schematic view of the water treatment system according to the above preferred embodiment of the present invention in a water producing state.
FIG. 3 is a schematic view of the water treatment system in a positive flushing state according to the above preferred embodiment of the present invention.
FIG. 4 is a schematic view of the water treatment system according to the above preferred embodiment of the present invention in a backwashing state.
FIG. 5 is a schematic view showing a modified example of the water treatment system according to the above preferred embodiment of the present invention.
FIG. 6 is a schematic view showing a modified example of the water treatment system according to the above preferred embodiment of the present invention.
FIG. 7 is a schematic view showing a modified example of the water treatment system according to the above preferred embodiment of the present invention.
FIG. 8 is a schematic view showing a modified example of the water treatment system according to the above preferred embodiment of the present invention.
FIG. 9 is a schematic view of the water treatment system according to the above preferred embodiment of the present invention in a backwashing state.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Referring to fig. 1 of the drawings accompanying the present specification, a water treatment system according to a preferred embodiment of the present invention, which includes a pre-filter unit 10 and a water mixing unit 20, is disclosed and illustrated in the following description.
The front cartridge unit 10 has a front water inlet 1001 and a front water outlet 1002 corresponding to the front water inlet 1001. The water mixing unit 20 includes a reverse osmosis membrane cartridge 21 and a water mixer 22, wherein the reverse osmosis membrane cartridge 21 has a reverse osmosis water inlet 211 and a reverse osmosis water outlet 212 corresponding to the reverse osmosis water inlet 211, the reverse osmosis water inlet 211 of the reverse osmosis membrane cartridge 21 is communicated with the front water outlet 1002 of the front cartridge unit 10, the water mixer 22 has a mixed water inlet 221 and a mixed water outlet 222 corresponding to the mixed water inlet 221, the mixed water inlet 221 of the water mixer 22 is communicated with the front water outlet 1002 of the front cartridge unit 10, and the mixed water outlet 222 of the water mixer 22 is communicated with the reverse osmosis water outlet 212 of the reverse osmosis membrane cartridge 21. For example, in the specific example of the water treatment system shown in fig. 1, the pre-filter unit 10 includes an ultrafiltration membrane filter 11, wherein the ultrafiltration membrane filter 11 has an ultrafiltration water inlet 111 and an ultrafiltration water outlet 112 corresponding to the ultrafiltration water inlet 111, wherein the ultrafiltration water inlet 111 and the ultrafiltration water outlet 112 of the ultrafiltration membrane filter 11 form the pre-water inlet 1001 and the pre-water outlet 1002 of the pre-filter unit 10, respectively, so that the mixed water inlet 221 of the water mixer 22 is communicated with the ultrafiltration water outlet 112 of the ultrafiltration membrane filter 11, and correspondingly, the reverse osmosis water inlet 221 of the reverse osmosis membrane filter 21 is communicated with the ultrafiltration water outlet 112 of the ultrafiltration membrane filter 11.
Raw water (e.g., tap water) can enter the ultrafiltration membrane cartridge 11 from the ultrafiltration water inlet 111 of the ultrafiltration membrane cartridge 11, and after being treated by the ultrafiltration membrane cartridge 11, the raw water is discharged from the ultrafiltration water outlet 112 of the ultrafiltration membrane cartridge 11 to obtain pre-treated water. The pre-water can enter the reverse osmosis membrane filter element 21 from the reverse osmosis water inlet 211 of the reverse osmosis membrane filter element 21, and is discharged from the reverse osmosis water outlet 212 of the reverse osmosis membrane filter element 21 after being treated by the reverse osmosis membrane filter element 21 to obtain the post-water. The pre-water can enter the mixer 22 from the mixed water inlet 221 of the mixer 22 and exit the mixer 22 from the mixed water outlet 222 of the mixer 22. The front water discharged from the water mixer 22 through the water mixing outlet 222 of the water mixer 22 and the rear water discharged from the reverse osmosis membrane cartridge 21 through the reverse osmosis outlet 212 of the reverse osmosis membrane cartridge 21 can be mixed to obtain purified water. The Total Dissolved Solids (TDS) of the so purified water can be controlled.
Specifically, the water treatment system of the present invention can control and adjust the total amount of soluble solids of the purified water by controlling the amount of the pre-water discharged from the mixed water outlet 222 of the water mixer 22 and/or the amount of the post-water discharged from the reverse osmosis membrane cartridge 21 from the reverse osmosis water outlet 212 of the reverse osmosis membrane cartridge 21. For example, in the particular example of the water treatment system shown in fig. 1, the water treatment system may control and adjust the total amount of dissolved solids in the purified water by adjusting the ratio of pre-water and post-water that are mixed to form the purified water simply by controlling the amount of water exiting the pre-water of the mixer 22 from the mixer outlet 222 of the mixer 22.
More specifically, the water mixer 22 includes a water mixing pipe 223 and a water mixing valve 224 disposed in the middle of the water mixing pipe 223, two ends of the water mixing pipe 223 respectively form the water mixing inlet 221 and the water mixing outlet 222 of the water mixer 22, wherein the front water entering the water mixer 22 from the water mixing inlet 221 of the water mixer 22 needs to pass through the water mixing valve 224 when flowing along the water mixing pipe 223 towards the water mixing outlet 222 of the water mixer 22, so that the water treatment system allows the water amount of the front water exiting the water mixing pipe 22 from the water mixing outlet 222 of the water mixing pipe 223 to be controlled by the water mixing valve 224. Preferably, in the preferred example of the water treatment system of the present invention shown in fig. 1, the mixing valve 224 of the mixer 22 is a manual mixing valve, so as to allow a user to control the amount of water discharged from the front water outlet 222 of the mixer 22 through the mixing water outlet 222 of the mixer 22 by manually operating the mixing valve 224. In addition, the mixing valve 224 of the mixer 22 may have a water supply state and a water cut-off state, and the mixing valve 224 may be switchable between the water supply state and the water cut-off state, wherein when the mixing valve 224 is in the water supply state, the mixing valve 224 allows the pre-existing water to flow through the mixing valve 224, and when the mixing valve 224 is in the water cut-off state, the mixing valve 224 prevents the pre-existing water from flowing through the mixing valve 224.
Further, with continued reference to fig. 1, the water mixing unit 20 includes a check valve 23, the check valve 23 has a check valve inlet 231 and a check valve outlet 232 corresponding to the check valve inlet 231, wherein the check valve water inlet 231 of the check valve 23 is communicated with the reverse osmosis water outlet 212 of the reverse osmosis membrane cartridge 21, and the check valve outlet 232 of the check valve 23 are communicated with the mixed water outlet 222 of the mixer 22, thus, the backwater discharged from the reverse osmosis membrane cartridge 21 through the reverse osmosis water outlet 212 of the reverse osmosis membrane cartridge 21 can be mixed with the backwater discharged from the mixed water outlet 222 of the water mixer 22 through the water mixer 22 after flowing out of the check valve 23, and the check valve 23 can prevent the pre-water discharged from the mixed water outlet 222 of the water mixer 22 to the water mixer 22 from flowing to the reverse osmosis membrane filter element 21 through the check valve 23. In other words, the check valve 23 of the water treatment system of the present invention is a check valve.
Further, the water mixing unit 20 includes a water path switch 24, the water path switch 24 has a switch water inlet 241 and a switch water outlet 242 corresponding to the switch water inlet 241, wherein the switch water inlet 241 of the water path switch 24 is communicated with the reverse osmosis water outlet 212 of the reverse osmosis membrane filter element 21, and the switch water outlet 242 of the water path switch 24 is communicated with the mixed water outlet 222 of the water mixer 22. The waterway switch 24 has a water supply state and a water cut-off state, and the waterway switch 24 can be switched between the water supply state and the water cut-off state, when the waterway switch 24 is in the water supply state, the waterway switch 24 allows the reverse osmosis water outlet 212 of the reverse osmosis membrane filter element 21 to discharge the post-positioned water flow of the reverse osmosis membrane filter element 21 to pass through the waterway switch 24, correspondingly, when the waterway switch 24 is in the water cut-off state, the waterway switch 24 prevents the reverse osmosis water outlet 212 of the reverse osmosis membrane filter element 21 from discharging the post-positioned water flow of the reverse osmosis membrane filter element 21 to pass through the waterway switch 24.
In this particular example of the water treatment system shown in fig. 1, the check valve 23 is connected in series between the reverse osmosis membrane cartridge 21 and the water circuit switch 24, i.e., the check valve inlet 231 of the check valve 23 is connected to the reverse osmosis water outlet 212 of the reverse osmosis membrane cartridge 21, and the check valve outlet 232 of the check valve 23 is connected to the switch inlet 241 of the water circuit switch 24. Alternatively, in other examples of the water treatment system of the present invention, the water circuit switch 24 is connected in series between the reverse osmosis membrane cartridge 21 and the check valve 23, that is, the switch water inlet 241 of the water circuit switch 24 is connected to the reverse osmosis water inlet 212 of the reverse osmosis membrane cartridge 21, and the switch water outlet 242 of the water circuit switch 24 is connected to the check valve water inlet 231 of the check valve 23.
With continued reference to fig. 1, the pre-filter unit 10 further includes a scale inhibiting carbon rod filter element 12, wherein the scale inhibiting carbon rod filter element 12 has a scale inhibiting water inlet 121 and a scale inhibiting water outlet 122 corresponding to the scale inhibiting water inlet 121, the scale inhibiting water inlet 121 of the scale inhibiting carbon rod filter element 12 is communicated with the ultrafiltration water outlet 112 of the ultrafiltration membrane filter element 11, and the scale inhibiting water outlet 122 of the scale inhibiting carbon rod filter element 12 is communicated with the reverse osmosis water inlet 211 of the reverse osmosis membrane filter element 21 and the mixed water inlet 221 of the water mixer 22. In other words, the scale inhibiting carbon rod filter element 12 is connected in series between the ultrafiltration membrane filter element 11 and the reverse osmosis membrane filter element 21. Preferably, the scale inhibition carbon rod filter element 12 is a high-efficiency scale inhibition carbon rod filter element, and is capable of filtering impurities such as dirt contained in the pre-positioned water discharged from the ultrafiltration water outlet 112 of the ultrafiltration membrane filter element 11.
With continued reference to fig. 1, the water treatment system includes a control valve 30 and a water pump 40, wherein the control valve 30 and the water pump 40 are sequentially connected in series between the pre-filter element unit 10 and the water mixing unit 20, and the control valve 30 is located between the pre-filter element unit 10 and the water pump 40, that is, the water pump 40 is located between the control valve 30 and the water mixing unit 20. The control valve 30 has a water supply state and a water cut-off state, when the control valve 30 is in the water supply state, the water pump 40 is turned on to allow water to sequentially flow through the ultrafiltration membrane filter element 11 and the scale-inhibiting carbon rod filter element 12 of the pre-filter element unit 10 and through the water mixing unit 20, and accordingly, when the control valve 30 is in the water cut-off state, the water pump 40 stands by to prevent water from flowing into the water mixing unit 20. The type of the control valve 30 is not limited in the water treatment system of the present invention, and for example, the control valve 30 may be a manual control valve or an electromagnetic control valve.
Specifically, the control valve 30 has a control valve inlet 31 and a control valve outlet 32 corresponding to the control valve inlet 31, the water pump 40 has a water pump inlet 41 and a water pump outlet 42 corresponding to the water pump inlet 41, wherein the control valve inlet 31 of the control valve 30 is communicated with the scale inhibiting outlet 122 of the scale inhibiting carbon rod filter element 12, the control valve outlet 32 of the control valve 30 is communicated with the water pump inlet 41 of the water pump 40, and the water pump outlet 42 of the water pump 40 is communicated with the reverse osmosis water inlet 211 of the reverse osmosis membrane filter element 21 and the mixed water inlet 221 of the water mixer 22.
Alternatively, in another example of the water treatment system of the present invention, the control valve 30 and the water pump 40 are connected in series between the ultrafiltration membrane filter element 11 and the scale-inhibiting carbon rod filter element 12, that is, the control valve water inlet 31 of the control valve 30 is communicated with the ultrafiltration water outlet 112 of the ultrafiltration membrane filter element 11, the control valve water outlet 32 of the control valve 30 is communicated with the water pump water inlet 41 of the water pump 40, the scale-inhibiting water inlet 121 of the scale-inhibiting carbon rod filter element 12 is communicated with the water pump water outlet 42 of the water pump 40, and the scale-inhibiting water outlet 122 of the scale-inhibiting carbon rod filter element 12 is communicated with the reverse osmosis water inlet 211 of the reverse osmosis membrane filter element 21 and the water mixing water inlet 221 of the water mixer 22.
With continued reference to fig. 1, the water treatment system includes a water quality detector 50, wherein the water quality detector 50 is connected in series between the water mixing unit 20 and a water using end (e.g., a faucet) for detecting the quality of purified water. For example, in the particular example of the water treatment system shown in FIG. 1, the water quality detector 50 is a TDS sensor for detecting a TDS value of the purified water for subsequently allowing the amount of pre-water flowing through the mixer 22 to be controlled based on the TDS value provided by the water quality detector 50 to control and adjust the total dissolved solids of the purified water.
With continued reference to fig. 1, the water treatment system includes a flow meter 60, wherein the flow meter 60 is connected in series between the water mixing unit 20 and the water using end for detecting the flow rate of the purified water. Preferably, the flow meter 60 is associated with the water pump 40 to allow the operating state of the water pump 40 to be selected based on the detection result of the flow meter 60. For example, in a specific example of the water treatment system of the present invention, the water treatment system presets a minimum flow rate, during the operation of the water treatment system, the flow meter 60 detects the flow rate of the purified water flowing from the water mixing unit 20 to the water using end in real time, and if the flow rate of the purified water flowing from the water mixing unit 20 to the water using end reaches the minimum flow rate preset by the water treatment system, the water pump 40 can operate at high power or full power without further decreasing the flow rate. Accordingly, if the flow rate of the purified water flowing from the water mixing unit 20 to the water using end is much larger than the minimum flow rate value preset by the water treatment system, the water pump 40 can operate at low power without increasing the flow rate.
It is worth mentioning that the positional relationship between the flow meter 60 and the water quality detector 50 is not limited in the water treatment system of the present invention, for example, in this preferred example of the water treatment system shown in fig. 1, the flow meter 60 is held between the water mixing unit 20 and the water quality detector 50, while in other examples of the water treatment system of the present invention, the water quality detector 50 may be held between the flow meter 60 and the water mixing unit 20.
With continued reference to fig. 1, the water treatment system includes a rear filter element unit 70, wherein the rear filter element unit 70 is connected in series between the water mixing unit 20 and the water using end, so that the water treatment system provides the purified water produced by the water mixing unit 20 to the water using end after the purified water is treated by the rear filter element unit 70. Preferably, the water quality detector 50 is held between the water mixing unit 20 and the post-filter element unit 70 in order to accurately control and adjust the total amount of dissolved solids of the purified water. The post-filter unit 70 may include, but is not limited to, at least one activated carbon filter element 71.
With continued reference to fig. 1, the water treatment system includes a first valve body 80, the first valve body 80 having a first valve port 81 and a second valve port 82 corresponding to the first valve port 81, the first valve port 81 of the first valve body 80 being capable of being communicated with a water source (e.g., a tap water pipe), and the second valve port 82 of the first valve body 80 being capable of being communicated with the ultrafiltration inlet 111 of the ultrafiltration membrane cartridge 11.
The water treatment system further comprises a second valve body 90 and a third valve body 100, wherein the second valve body 90 has a third port 91 and a fourth port 92 corresponding to the third port 91, the third port 91 of the second valve body 90 can be communicated to the water source side, and the fourth port 92 of the second valve body 90 can be communicated to the ultrafiltration outlet 112 of the ultrafiltration membrane cartridge 11, wherein the third valve body 100 has a fifth port 101 and a sixth port 102 corresponding to the fifth port 101, the fifth port 101 of the third valve body 100 can be communicated to the water source side, and the sixth port 102 of the third valve body 100 can be communicated to the external environment (e.g., a recovery water circuit).
The water treatment system further comprises a fourth valve body 110, the fourth valve body 110 has a seventh valve port 1101 and an eighth valve port 1102 corresponding to the seventh valve port 1101, the seventh valve port 1101 of the fourth valve body 110 is communicated with the reverse osmosis water outlet 212 of the reverse osmosis membrane cartridge 21, and the eighth valve port 1102 of the fourth valve body 110 is communicated with the environment (such as a recycling water circuit).
It is worth mentioning that the types of the first valve body 80, the second valve body 90, the third valve body 100 and the fourth valve body 110 of the water treatment system are not limited in the water treatment system of the present invention as long as they have a water supply state and a water cut-off state and can switch between the water supply state and the water cut-off state. Preferably, the first valve body 80, the second valve body 90, the third valve body 100 and the fourth valve body 110 of the water treatment system of the present invention may each be a solenoid valve, so that the first valve body 80, the second valve body 90, the third valve body 100 and the fourth valve body 110 may each be automatically switched between a water supply state and a water cut-off state.
Referring to fig. 2-4, the water treatment system of the present invention has a water producing state, a forward flush state, and a backwash state, and is switchable between the water producing state, the forward flush state, and the backwash state.
Fig. 2 shows the water treatment system in the water producing state, in which the first valve body 80, the control valve 30 and the waterway switch 24 are in the water supplying state, and the second valve body 90, the third valve body 100 and the fourth valve body 110 are in the water cutting state. The raw water provided by the water source end can sequentially flow through the first valve body 80, the ultrafiltration membrane filter element 11, the scale-inhibiting carbon rod filter element 12, the control valve 30, the water pump 40, the reverse osmosis membrane filter element 21, the check valve 23 and the water channel switch 24 to obtain the back water, and the raw water can sequentially flow through the first valve body 80, the ultrafiltration membrane filter element 11, the scale-inhibiting carbon rod filter element 12, the control valve 30, the water pump 40 and the water mixer 22 to obtain the front water, wherein the back water discharged from the switch water outlet 242 of the water channel switch 24 and the front water discharged from the mixed water outlet 222 of the water mixer 22 can be mixed to obtain the purified water, and the purified water is provided to the water using end after sequentially flowing through the flowmeter 60, the water quality detector 50 and the back filter element unit 70. When the purified water flows through the water quality detector 50, the water quality detector 50 can detect the TDS of the purified water, and control the state of the mixing valve 224 of the water mixer 22 according to the TDS detected by the water quality detector 50 to control the flow rate of the pre-water flowing through the water mixer 22, so as to control and adjust the total dissolved solids of the purified water.
Fig. 3 shows the water treatment system in the positive flushing state, in which the first valve body 80, the control valve 30 and the fourth valve body 110 are in the water supply state, and the second valve body 90, the third valve body 100, the waterway switch 24 and the mixing valve 224 are in the water cut-off state. Raw water provided by the water source end can flow through the first valve body 80, the ultrafiltration membrane filter element 11, the scale inhibition carbon rod filter element 12, the control valve 30, the water pump 40, the reverse osmosis membrane filter element 21 and the fourth valve body 110 in sequence, so that the reverse osmosis membrane filter element 21 is flushed by the front water.
Fig. 4 shows the water treatment system in the backwashing state, in which the second valve body 90 and the third valve body 100 are in the water supply state, and the first valve body 80 and the control valve 30 are in the water cut-off state. Raw water provided by the water source end can sequentially flow through the second valve body 90, the ultrafiltration membrane filter element 11 and the third valve body 100, so that the raw water is allowed to back flush the ultrafiltration membrane filter element 11.
Fig. 5 shows a modified example of the water treatment system of the present invention, which is different from the water treatment system shown in fig. 1, in this specific example of the water treatment system shown in fig. 5, the water treatment system further comprises a pressure tank 120, wherein the pressure tank 120 has a tank port 1201, and the tank port 1201 is communicated with the reverse osmosis water outlet 212 of the reverse osmosis membrane cartridge 21, so that the post-water discharged from the reverse osmosis membrane cartridge 21 through the reverse osmosis water outlet 212 of the reverse osmosis membrane cartridge 21 can be replenished to and stored in the pressure tank 120 through the tank port 1201 of the pressure tank 120. In an initial stage of using the water treatment system of the present invention, for example, when the water using end starts using water, the post-water stored in the pressure barrel 120 is allowed to be discharged through the barrel port 1201 of the pressure barrel 120 to be mixed with the pre-water discharged from the mixed water outlet 222 of the mixer 22 to obtain purified water. It is understood that the initial flow rate of the water treatment system of the present invention can be increased to meet the commercial field by providing the pressure tub 120. Preferably, the barrel port 1201 of the pressure barrel 120 is communicated with the reverse osmosis water outlet 212 of the reverse osmosis membrane cartridge 21 between the reverse osmosis water outlet 212 of the reverse osmosis membrane cartridge 21 and the check valve water inlet 231 of the check valve 23.
Fig. 6 shows a modified example of the water treatment system according to the present invention, which is different from the water treatment system shown in fig. 5 in that, in the specific example of the water treatment system shown in fig. 6, the mixing valve 224 of the mixer 22 is an electronic mixing valve, and when the water quality detector 50 detects that the TDS value of the purified water gradually increases as the flow rate gradually decreases as the amount of the post-water stored in the pressure tub 120 decreases, the mixing valve 224 can be automatically controlled to decrease the flow rate of the pre-water flowing through the mixer 22, so that the TDS value of the purified water is automatically adjusted to decrease, and the adjustment is performed in real time.
Fig. 7 shows a modified example of the water treatment system of the present invention, which is different from the water treatment system shown in fig. 5, in the specific example of the water treatment system shown in fig. 7, the water pump 40 is a variable frequency water pump, and when the water quality detector 50 detects that the TDS value of the purified water gradually increases as the flow rate gradually decreases as the amount of the post-water stored in the pressure tank 120 decreases, the water pump 40 can be automatically controlled to decrease the flow rate of the outlet water, so as to achieve the purpose of decreasing the TDS value of the purified water. Alternatively, in another variation of the water treatment system of the present invention, the output water flow rate may be reduced by controlling the voltage of the water pump 40 to gradually decrease the voltage of the water pump 40, so as to reduce the TDS value of the purified water.
Fig. 8 and 9 show a modified example of the water treatment system of the present invention, which is different from the water treatment system shown in fig. 5, in this particular example of the water treatment system shown in fig. 8 and 9, the third valve port 91 of the second valve body 90 is communicated with the barrel port 1201 of the pressure barrel 120, thus, when the water treatment system is in the backwashing state, the second valve body 90, the third valve body 100 and the control valve 30 are all in the water supply state, the water mixing valve 224 and the waterway switch 24 are in the water cut-off state, therefore, the post-positioned water stored in the pressure barrel 120 can sequentially flow through the reverse osmosis membrane filter element 21, the water pump 40, the control valve 30, the scale inhibition carbon rod filter element 12, the ultrafiltration membrane filter element 11 and the third valve body 100, so as to realize the back washing of the ultrafiltration membrane filter element 11.
According to another aspect of the present invention, there is further provided a water treatment method comprising the steps of:
(d) allowing raw water to be treated by the ultrafiltration membrane filter element 11 to obtain pre-water;
(e) allowing the pre-water to be treated by the reverse osmosis membrane cartridge 21 to obtain post-water; and
(f) mixing the post-water discharged from the reverse osmosis membrane cartridge 21 through the reverse osmosis water outlet 212 of the reverse osmosis membrane cartridge 21 and the pre-water discharged from the ultrafiltration membrane cartridge 11 through the ultrafiltration water outlet 112 of the ultrafiltration membrane cartridge 11 to obtain purified water.
Further, in the step (c), the ultrafiltration water outlet 112 of the ultrafiltration membrane cartridge 11 and the reverse osmosis water outlet 212 of the reverse osmosis membrane cartridge 21 are communicated through the water mixing pipe 223, so as to mix the post-water discharged from the reverse osmosis water outlet 212 of the reverse osmosis membrane cartridge 21 out of the reverse osmosis membrane cartridge 21 with the pre-water discharged from the ultrafiltration water outlet 112 of the ultrafiltration membrane cartridge 11 out of the ultrafiltration membrane cartridge 11. Preferably, in the step (c), the flow rate of the pre-water flowing through the mixing pipe 223 is controlled by the mixing valve 224 disposed at the middle portion of the mixing pipe 223 to control and adjust the TDS value of the purified water.
It will be appreciated by persons skilled in the art that the above embodiments are only examples, wherein features of different embodiments may be combined with each other to obtain embodiments which are easily conceivable in accordance with the disclosure of the invention, but which are not explicitly indicated in the drawings.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (22)
1. A water treatment system, comprising:
the filter comprises a front filter element unit, a back filter element unit and a front filter element unit, wherein the front filter element unit is provided with a front water inlet and a front water outlet corresponding to the front water inlet; and
a water mixing unit, wherein the water mixing unit further comprises:
a reverse osmosis membrane cartridge, wherein the reverse osmosis membrane cartridge has a reverse osmosis water inlet and a reverse osmosis water outlet corresponding to the reverse osmosis water inlet, wherein the reverse osmosis water inlet of the reverse osmosis membrane cartridge is communicated with the front water outlet of the front cartridge unit; and
the water mixer is provided with a mixed water inlet and a mixed water outlet corresponding to the mixed water inlet, the mixed water inlet of the water mixer is communicated with the front water outlet of the front filter element unit, and the mixed water outlet of the water mixer is communicated with the reverse osmosis water outlet of the reverse osmosis membrane filter element.
2. The water treatment system of claim 1, wherein the pre-filter unit comprises an ultrafiltration membrane filter element having an ultrafiltration water inlet and an ultrafiltration water outlet corresponding to the ultrafiltration water inlet, wherein the reverse osmosis water inlet of the reverse osmosis membrane filter element and the mixing water inlet of the water mixer are respectively communicated with the ultrafiltration water outlet of the ultrafiltration membrane filter element.
3. The water treatment system of claim 2, wherein the water mixer comprises a water mixing pipe and a water mixing valve arranged in the middle of the water mixing pipe, and the two ends of the water mixing pipe form the water mixing inlet and the water mixing outlet respectively.
4. The water treatment system of claim 3, further comprising a control valve and a water pump, wherein the control valve and the water pump are connected in series between the pre-filter element unit and the water mixing unit.
5. The water treatment system of claim 4 further comprising a pressure tank having a tank port, wherein the tank port of the pressure tank is in communication with the reverse osmosis water outlet of the reverse osmosis membrane cartridge.
6. The water treatment system of claim 3 further comprising a water quality detector, wherein the water quality detector is connected in series between the water mixing unit and a water consuming end for detecting a TDS value of purified water obtained by mixing the water exiting the RO membrane cartridge from the RO outlet of the RO membrane cartridge and the water exiting the mixer from the mixer outlet of the mixer.
7. The water treatment system of claim 5 further comprising a water quality detector, wherein the water quality detector is connected in series between the water mixing unit and a water consuming end for detecting a TDS value of purified water obtained by mixing the water exiting the RO membrane cartridge from the RO outlet of the RO membrane cartridge and the water exiting the mixer from the mixer outlet of the mixer.
8. The water treatment system of claim 7 wherein the mixing valve is an electronic mixing valve and the operational state of the mixing valve is associated with the water quality detector to allow the operational state of the mixer to be adjusted based on the TDS value detected by the water quality detector.
9. The water treatment system of claim 7 wherein the water pump is a variable frequency water pump and an operating condition of the water pump is associated with the water quality detector to allow the operating condition of the water pump to be adjusted based on the TDS value detected by the water quality detector.
10. The water treatment system of claim 7 wherein the voltage of the water pump is associated with the water quality detector to allow the voltage of the water pump to be adjusted based on the TDS value detected by the water quality detector.
11. The water treatment system of any one of claims 1-10, further comprising a first valve body having a first port and a second port corresponding to the first port, a second valve body having a third port and a fourth port corresponding to the third port, and a third valve body having a fifth port and a sixth port corresponding to the fifth port, wherein the first port of the first valve body is capable of being communicated to a source side and the second port of the first valve body is communicated to the front inlet of the front cartridge unit, the third port of the second valve body is capable of being communicated to the source side and the fourth port of the second valve body is communicated to the front outlet of the front cartridge unit, the fifth valve port of the third valve body is communicated with the front water inlet of the front filter element unit, and the sixth valve body of the third valve body can be communicated with a recovery waterway.
12. The water treatment system of any one of claims 5, 7, 8, 9, and 10, further comprising a first valve body having a first port and a second port corresponding to the first port, a second valve body having a third port and a fourth port corresponding to the third port, and a third valve body having a fifth port and a sixth port corresponding to the fifth port, wherein the first port of the first valve body is capable of being communicated with a water inlet and the second port of the first valve body is communicated with the front inlet of the front cartridge unit, the third port of the second valve body is capable of being communicated with the barrel port of the pressure barrel, and the fourth port of the second valve body is communicated with the front outlet of the front cartridge unit, the fifth valve port of the third valve body is communicated with the front water inlet of the front filter element unit, and the sixth valve body of the third valve body can be communicated with a recovery waterway.
13. The water treatment system of claim 11, further comprising a fourth valve body having a seventh port and an eighth port corresponding to the seventh port, wherein the seventh port of the fourth valve body is in communication with the reverse osmosis outlet of the reverse osmosis membrane cartridge, and the eighth port of the fourth valve body is capable of being in communication with the recovery circuit.
14. The water treatment system of claim 12, further comprising a fourth valve body having a seventh port and an eighth port corresponding to the seventh port, wherein the seventh port of the fourth valve body is in communication with the reverse osmosis outlet of the reverse osmosis membrane cartridge, and the eighth port of the fourth valve body is capable of being in communication with the recovery circuit.
15. A water treatment method, characterized in that it comprises the steps of:
(a) allowing raw water to be treated by a pre-filter unit to obtain pre-water;
(b) allowing the pre-water to be treated by a reverse osmosis membrane filter element to obtain post-water; and
(c) mixing the water discharged from the reverse osmosis water outlet of the reverse osmosis membrane filter element and the water discharged from the front water outlet of the front filter element unit to obtain purified water.
16. The water treatment method according to claim 15, wherein in the step (c), the pre-water outlet of the pre-filter element unit and the reverse osmosis water outlet of the reverse osmosis membrane filter element are communicated through a water mixing pipe to mix the post-water discharged from the reverse osmosis water outlet of the reverse osmosis membrane filter element and the pre-water discharged from the pre-water inlet of the pre-filter element unit.
17. The water treatment method as claimed in claim 16, wherein in the step (c), the flow rate of the pre-water passing through the mixing pipe is controlled by a mixing valve disposed at a middle portion of the mixing pipe to control and adjust the TDS value of the purified water.
18. The water treatment method of claim 17, further comprising the step of: and (c) storing the postposition water discharged from the reverse osmosis water outlet of the reverse osmosis membrane filter element into a pressure barrel, and mixing the postposition water discharged from the pressure barrel and the prepositive water discharged from the prepositive water outlet of the prepositive filter element unit into purified water in the step (c).
19. The water treatment method of claim 17, further comprising the step of: the TDS value of the purified water is detected by a water quality detector.
20. The water treatment method of claim 18, further comprising the step of: detect the TDS value of the purified water through a water quality detector to follow-up on the basis of water quality detector detects the TDS value and adjusts the water yield of the leading water of flowing through mix water pipe in real time.
21. The water treatment method as claimed in any one of claims 15 to 20, wherein in the above method, raw water is allowed to enter the ultrafiltration membrane cartridge from a cartridge water inlet of an ultrafiltration membrane cartridge of the pre-cartridge unit and is discharged from a cartridge water outlet of the ultrafiltration membrane cartridge.
22. The water treatment method as claimed in claim 18 or 20, wherein in the above method, the post-positioned water stored in the pressure tank is allowed to enter the ultrafiltration membrane cartridge from a cartridge water inlet of an ultrafiltration membrane cartridge of the pre-positioned cartridge unit and to exit the ultrafiltration membrane cartridge from an ultrafiltration water inlet of the ultrafiltration membrane cartridge.
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| WO2015131422A1 (en) * | 2014-03-05 | 2015-09-11 | 深圳澳特弗科技有限公司 | Intense pulsation micro wastewater discharge water purification system |
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| CN108017178A (en) * | 2018-01-08 | 2018-05-11 | 昆山怡口净水系统有限公司 | Water purifier |
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Application publication date: 20210716 |