CN114163046A - Water purification system and TDS switching method thereof - Google Patents
Water purification system and TDS switching method thereof Download PDFInfo
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- CN114163046A CN114163046A CN202011455942.0A CN202011455942A CN114163046A CN 114163046 A CN114163046 A CN 114163046A CN 202011455942 A CN202011455942 A CN 202011455942A CN 114163046 A CN114163046 A CN 114163046A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 818
- 238000000746 purification Methods 0.000 title claims abstract description 167
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000013505 freshwater Substances 0.000 claims abstract description 174
- 238000003860 storage Methods 0.000 claims abstract description 173
- 238000011084 recovery Methods 0.000 claims description 46
- 238000004519 manufacturing process Methods 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000012535 impurity Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- 238000011045 prefiltration Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000003651 drinking water Substances 0.000 abstract description 11
- 235000020188 drinking water Nutrition 0.000 abstract description 11
- 230000001105 regulatory effect Effects 0.000 description 12
- 239000012141 concentrate Substances 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000008213 purified water Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000035622 drinking Effects 0.000 description 3
- 238000000909 electrodialysis Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 241001122767 Theaceae Species 0.000 description 2
- 239000003011 anion exchange membrane Substances 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000003014 ion exchange membrane Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003809 water extraction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
- C02F1/4695—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis electrodeionisation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
- C02F9/20—Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
-
- 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
- C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
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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
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/10—Location of water treatment or water treatment device as part of a potable water dispenser, e.g. for use in homes or offices
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Clinical Laboratory Science (AREA)
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Abstract
The invention discloses a water purification system and a TDS switching method of the water purification system. This water purification system includes: the electric purification module is suitable for carrying out purification treatment on entering water, is connected with a water inlet pipeline and a water outlet pipeline, the water inlet pipeline is connected with an original water gap, raw water at the original water gap enters the electric purification module through the water inlet pipeline, a water storage tank for storing fresh water is arranged on the water outlet pipeline, and water is taken from the water storage tank to obtain the fresh water with the target TDS value. According to the water purification system, the water can be taken immediately after the TDS value of the outlet water is switched by arranging the water storage tank, and a user does not need to wait, so that the user experience feeling when drinking water with different TDS values is switched is enhanced.
Description
Technical Field
The invention relates to the technical field of water purification, in particular to a water purification system and a TDS (total dissolved solids) switching method of the water purification system.
Background
Along with the social development and the improvement of the living standard of residents, people pay more and more attention to the quality of drinking water and know the drinking water deeply. Under different water use scenes, drinking water with different TDS (Total dissolved solids) values has certain influence on the taste, for example, making tea can taste tea fragrance with low TDS value drinking water, and coffee has better taste with high TDS value drinking water. Existing water purification systems have various problems, for example:
1. the existing water purification system can only provide single purified water generally, and the single purified water cannot meet the requirements of people on multi-scene and multi-TDS-value water.
2. The existing water purification system lacks a method for quickly adjusting the quality and the temperature of the outlet water.
3. After the water purifying equipment with the semi-permeable membrane is shut down, the TDS value of the first cup of water or the first few cups of water for water preparation is started to be too high.
4. The existing water purification system mostly adopts frequent reverse electrode Electrodialysis (EDR) as a filtration mode, but an electric purification module of the existing water purification system has the problem of membrane surface pollution.
5. Under the condition that the electric purification module adopts a pressure maintaining mode to realize adjustable water quality, the water outlet needs to be waited, and the instant water demand of a user cannot be met.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, the invention provides a water purification system which can quickly realize the adjustment of the TDS value of the effluent.
The invention also provides a TDS switching method of the water purification system.
The invention also provides another TDS switching method of the water purification system.
A water purification system according to an embodiment of the present invention includes: the electric purification module is suitable for purifying the entering water, the electric purification module is connected with a water inlet pipeline and a water outlet pipeline, the water inlet pipeline is connected with an original water gap, the original water at the original water gap enters the electric purification module through the water inlet pipeline, a water storage tank for storing fresh water is arranged on the water outlet pipeline, and the fresh water with the target TDS value is obtained by taking water from the water storage tank.
According to the water purification system provided by the embodiment of the invention, the water can be taken immediately after the TDS value of the outlet water is switched by arranging the water storage tank, and a user does not need to wait, so that the user experience feeling when drinking water with different TDS values is switched is enhanced.
The quantity of storage water tank is a plurality of, at least two the TDS value of fresh water in the storage water tank is inequality, through from one of them the water intaking in the storage water tank, or through from having the fresh water of the same TDS value a plurality of the storage water tank in the water intaking mix, or through from having the fresh water of different TDS values the water intaking mix in the storage water tank to obtain the fresh water of target TDS value.
According to some embodiments of the invention, the storage tanks comprise a first storage tank for storing fresh water of a first TDS value and a second storage tank for storing fresh water of a second TDS value, the first TDS value being unequal to the second TDS value;
the water outlet pipeline comprises: the water purifier comprises a first water outlet branch and a second water outlet branch, wherein the first water storage tank is arranged in the first water outlet branch, the second water storage tank is arranged in the second water outlet branch, a fifth electromagnetic valve is arranged at one end of the electric purification module facing the first water storage tank, a sixth electromagnetic valve is arranged at one end of the electric purification module facing the second water storage tank, a seventh electromagnetic valve is arranged at one end of the electric purification module facing the first water storage tank, and an eighth electromagnetic valve is arranged at one end of the electric purification module facing the second water storage tank.
Further, the water outlet pipeline further comprises: and the first water outlet branch and the second water outlet branch are connected with the water outlet section, and a water outlet element is arranged on the water outlet section.
According to some embodiments of the invention, the raw water port is a raw water tank, and the water outlet pipeline is selectively communicated or disconnected with the raw water tank so as to selectively recover water in the electric purification module;
the water purification system also comprises a concentrated water recovery part, and the water outlet pipeline is selectively communicated or disconnected with the concentrated water recovery part so as to selectively recover the concentrated water in the electric purification module.
Specifically, the electrical purification module has a fresh water inlet, a concentrated water inlet, a fresh water outlet, and a concentrated water outlet, the water inlet pipeline includes a fresh water inlet pipeline and a concentrated water inlet pipeline, the fresh water inlet pipeline is connected to the fresh water inlet, the concentrated water inlet pipeline is connected to the concentrated water inlet, the water outlet pipeline includes a main water outlet pipeline, a fresh water outlet pipeline, and a concentrated water outlet pipeline, one end of the fresh water outlet pipeline is connected to the fresh water outlet and the other end of the fresh water outlet pipeline is connected to the main water outlet, the concentrated water outlet pipeline is connected to the concentrated water outlet, and the first water outlet branch and the second water outlet branch are connected in parallel and are disposed between the main water outlet pipeline and the water outlet section.
According to some embodiments of the invention, a first solenoid valve is disposed on the water outlet main pipeline;
the fresh water outlet pipeline, the main water outlet pipeline and the concentrated water outlet pipeline are all connected with a connecting pipeline, the connecting pipeline comprises a first branch section and a second branch section, one end of the first branch section is connected with the fresh water outlet pipeline and the main water outlet pipeline, the other end of the first branch section is connected with the concentrated water outlet pipeline, the second branch section is connected with the first branch section, and a second electromagnetic valve is arranged on the first branch section;
a concentrated water recovery pipeline is arranged between the second branch section and the concentrated water recovery part, and a third electromagnetic valve is arranged on the concentrated water recovery pipeline;
a raw water recovery pipeline is arranged between the second branch section and the raw water tank, and a fourth electromagnetic valve is arranged on the raw water recovery pipeline;
when the first electromagnetic valve and the third electromagnetic valve are opened and the second electromagnetic valve and the fourth electromagnetic valve are closed, the fresh water outlet pipeline is communicated with the main outlet pipeline, and the concentrated water outlet pipeline is communicated with the concentrated water recovery part; when the first electromagnetic valve and the third electromagnetic valve are closed and the second electromagnetic valve and the fourth electromagnetic valve are opened, the fresh water outlet pipeline and the concentrated water outlet pipeline are both communicated with the raw water tank.
According to some embodiments of the present invention, a self-priming pump is disposed on the water inlet pipeline, and the self-priming pump is used for providing a driving force for flowing the water of the raw water inlet into the electric purification module.
According to some embodiments of the invention, a pre-filter element is arranged between the raw water port and the electric purification module, and the pre-filter element is used for filtering impurities in the raw water flowing out of the raw water port.
According to some embodiments of the invention, a post-filter element is disposed between the electrical purification module and the water storage tank, the post-filter element being configured to filter fresh water impurities flowing out of the electrical purification module.
According to some embodiments of the invention, an instant heating module is disposed at the water outlet of the water storage tank, and the instant heating module is used for heating the fresh water flowing out of the water storage tank.
According to a second aspect of the present invention, the TDS switching method of a water purification system is provided, wherein the water purification system is the above water purification system, and the TDS switching method includes:
water preparation: detecting the water level position in each water storage tank, and starting water production when the water level position is lower than the target water level height; stopping water production when the water level position in the water storage tank rises to the target water level height;
a water taking step: the fresh water of the target TDS value is obtained by taking water from one of the storage tanks, or by mixing water from a plurality of the storage tanks having fresh water of the same TDS value, or by mixing water from the storage tanks having fresh water of different TDS values.
According to a third aspect of the present invention, the TDS switching method of a water purification system is the above water purification system, and the TDS switching method includes:
water preparation: detecting the water level position in the first water storage tank, and opening the first electromagnetic valve, the third electromagnetic valve and the fifth electromagnetic valve to start water production when the water level position is lower than the target water level height of the first water storage tank; when the water level position in the first water storage tank rises to the target water level height in the first water storage tank, closing the first electromagnetic valve, the third electromagnetic valve and the fifth electromagnetic valve, and stopping water production;
detecting the water level position in the second water storage tank, and opening the first electromagnetic valve, the third electromagnetic valve and the sixth electromagnetic valve to start water production when the water level position is lower than the target water level height of the second water storage tank; when the water level position in the second water storage tank rises to the target water level height in the second water storage tank, closing the first electromagnetic valve, the third electromagnetic valve and the sixth electromagnetic valve, and stopping water production;
a water taking step: taking fresh water of a first TDS value from the first storage tank; taking fresh water of a second TDS value from the second storage tank; when the target TDS value is between the first TDS value and the second TDS value, mixed water is taken from the first water storage tank and the second water storage tank respectively.
Further, when water production is started, the second electromagnetic valve and the fourth electromagnetic valve are closed; and after water production is stopped, opening the second electromagnetic valve and the fourth electromagnetic valve, replacing the fresh water and the concentrated water in the electric purification module with raw water, and simultaneously recovering the fresh water and the concentrated water in the electric purification module.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic diagram of a water purification system;
FIG. 2 is a schematic diagram of a TDS switching method of a water purification system according to an embodiment of a second aspect of the invention;
fig. 3 is a schematic diagram of a TDS switching method of a water purification system according to an embodiment of a third aspect of the invention.
Reference numerals:
the system comprises a water purification system 10, an electric purification module 1, a fresh water inlet 11, a concentrated water inlet 12, a fresh water outlet 13, a concentrated water outlet 14, a raw water inlet (raw water tank) 2, a partition plate 21, a concentrated water recovery part 3, a fresh water inlet pipeline 41, a first flow regulating valve 411, a concentrated water inlet pipeline 42, a second flow regulating valve 421, a water inlet main pipeline 43, a fresh water outlet pipeline 51, a concentrated water outlet pipeline 52, a water outlet main pipeline 53, a first water outlet branch 54, a second water outlet branch 55, a water outlet section 56, a water outlet element 61, a self-priming pump 62, a front filter element 63, a rear filter element 64, an instant heating module 65, a connecting pipeline 71, a first branch section 711, a second branch section 712, a concentrated water recovery pipeline 72, a raw water recovery pipeline 73, a first electromagnetic valve 81, a second electromagnetic valve 82, a third electromagnetic valve 83, a fourth electromagnetic valve 84, a fifth electromagnetic valve 85, a sixth electromagnetic valve 86, a seventh electromagnetic valve 87, a concentrated water outlet 14, a raw water inlet 2, a raw water inlet, a fresh water inlet pipe 52, a fresh water inlet pipe 51, a fresh water inlet pipe, a fresh water outlet pipe, a fresh water inlet pipe 51, a fresh water outlet pipe 51, a fresh water outlet pipe 52, a fresh water outlet pipe, a fresh water outlet pipe 52, a fresh water outlet pipe, a fresh water outlet pipe, a fresh water outlet pipe 52, a fresh water outlet pipe, a fresh water inlet pipe, a fresh water outlet pipe 52, a fresh water pipe, An eighth electromagnetic valve 88, a first water storage tank 91, a second water storage tank 92, a water pump 93 and an exhaust port 94.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
A water purification system 10 according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.
Referring to fig. 1, a water purification system 10 according to an embodiment of the present invention may include: the electric purification module 1 is suitable for purifying the entering water, specifically, in some optional embodiments, the electric purification module 1 can purify the entering water by using an electrodialysis technology, the electric purification module 1 is provided with a positive electrode and a negative electrode pair for electrodialysis water purification, the electric purification module 1 is alternately arranged between the positive electrode and the negative electrode by using cation-anion exchange membranes and is separated by a special partition plate to form a desalination system and a concentration system, under the action of a direct current electric field, cations in water migrate to the negative electrode and only can pass through the cation exchange membranes, anions migrate to the positive electrode and only can pass through the anion exchange membranes, so that the raw water in a light chamber is desalinated, and the raw water in a concentration chamber is concentrated. The electric purification module 1 can also switch the polarities of the positive electrode and the negative electrode at preset intervals (for example, 15-20 min), automatically clean dirt formed on the surfaces of the ion exchange membrane and the electrodes, and ensure the long-term stability of the ion exchange membrane effect and the quality and quantity of fresh water.
The electric purification module 1 is connected with a water inlet pipeline and a water outlet pipeline, a water outlet element 61 is arranged on the water outlet pipeline, the water outlet element 61 can be a water outlet nozzle or a water faucet, and when the water outlet element 61 is opened, a user can take purified water; when the water outlet element 61 is closed, the water in the water outlet pipeline cannot flow out.
The water inlet pipeline is connected with a raw water inlet 2, raw water of the raw water inlet 2 enters the electric purification module 1 through the water inlet pipeline, and therefore a water source is provided for the electric purification module 1, and water requirements of users are guaranteed.
The water outlet pipeline is provided with a water storage tank for storing fresh water, and the fresh water with the target TDS value is obtained by taking water from the water storage tank.
According to the water purification system 10 provided by the embodiment of the invention, fresh water with a specific TDS value can be prepared in advance and stored in the water storage tank, and when a user needs to take water, the user can directly take water from the water storage tank, so that the user does not need to wait, and the instant water demand of the user can be met.
Optionally, the number of the storage tanks is plural, and the TDS values of the fresh water in at least two of the storage tanks are not equal, by taking water from one of the storage tanks, or by taking water from a plurality of storage tanks of fresh water having the same TDS value and mixing the water, or by taking water from storage tanks of fresh water having different TDS values and mixing the water, to obtain the fresh water having the target TDS value.
Specifically, by taking water from one of the storage tanks, the TDS value of the outlet water can be obtained as the TDS value of the fresh water stored in that storage tank. The TDS value of the effluent water which is the stored fresh water of the water storage tanks can be obtained by taking and mixing water from the water storage tanks with the fresh water with the same TDS value. By mixing the water taken from the storage tanks with fresh water of different TDS values, the TDS value of the effluent that can be obtained is between the highest TDS value and the lowest TDS value of the fresh water stored in these storage tanks.
The fresh water with the TDS value of the outlet water of the electric purification module 1 being the TDS value stored in the water storage tank is obtained by adjusting the voltage applied to the electric purification module 1.
According to the water purification system 10 provided by the embodiment of the invention, fresh water with different TDS values can be prepared in advance and stored in the corresponding water storage tanks, and when a user needs the fresh water with a high TDS value or a low TDS value, the user can directly take water from the corresponding water storage tanks; when the TDS value of the water that the user needs is in between highest TDS value and the minimum TDS value, take the water in the different storage water tanks according to the set-up procedure and mix to realize getting water immediately after the switching of play water TDS value, the user need not to wait, is favorable to the reinforcing to be in the user experience sense when switching different play water TDS value drinking water. The water purification system 10 can quickly adjust the quality of the discharged water, and meets the requirements of people on water with multiple scenes and multiple TDS values. Meanwhile, due to the arrangement of the water storage tank, after the water purification system 10 is stopped, the TDS value of the first cup of water or the previous cups of water for water preparation can meet the user requirement and cannot be too high.
In the embodiment of fig. 1, the water storage tanks include a first water storage tank 91 and a second water storage tank 92, the first water storage tank 91 is used for storing fresh water with a first TDS value, the second water storage tank 92 is used for storing fresh water with a second TDS value, and the first TDS value is not equal to the second TDS value. When the TDS value of the water that the user needs is the first TDS value, the fresh water in the first storage water tank 91 is directly taken. When the TDS value of the water required by the user is the second TDS value, the fresh water in the second storage tank 92 is directly taken. When the TDS value of the water that the user needs is between first TDS value and second TDS value, mix the play water from first storage water tank 91 and second storage water tank 92 respectively according to the setup procedure, alright in order to obtain the fresh water of target TDS value. From this, can be when satisfying the drinking water demand of user under different scenes, realize that the user can get the water immediately when switching different TDS values, need not to wait for, improve user experience and feel.
The first water tank 91 and/or the second water tank 92 may be provided with an air outlet 94 to balance the air pressure inside and outside the water tanks, thereby achieving smooth water storage. In the embodiment shown in fig. 1, the air outlet 94 communicates with the second water storage tank 92.
The water outlet pipeline comprises: the first water outlet branch 54 and the second water outlet branch 55, the first water storage tank 91 is disposed in the first water outlet branch 54, the second water storage tank 92 is disposed in the second water outlet branch 55, a fifth electromagnetic valve 85 is disposed at one end of the first water storage tank 91 facing the electric purification module 1, a sixth electromagnetic valve 86 is disposed at one end of the second water storage tank 92 facing the electric purification module 1, a seventh electromagnetic valve 87 is disposed at one end of the first water storage tank 91 far away from the electric purification module 1, and an eighth electromagnetic valve 88 is disposed at one end of the second water storage tank 92 far away from the electric purification module 1.
When the fifth electromagnetic valve 85 is opened, water can be stored into the first water storage tank 91; when the fifth electromagnetic valve 85 is closed, water cannot be stored into the first water storage tank 91; when the sixth electromagnetic valve 86 is opened, water can be stored into the second water storage tank 92; when the sixth solenoid valve 86 is closed, water cannot be stored in the second water tank 92.
When water is taken, the seventh solenoid valve 87 is opened to take fresh water of the first TDS value from the first water storage tank 91. The eighth solenoid valve 88 is opened and fresh water of the second TDS value is taken from the second storage tank 92. When the target TDS value is between first TDS value and second TDS value, then open seventh solenoid valve 87 and eighth solenoid valve 88, go out water after first storage water tank 91, second storage water tank 92 water intaking mixes respectively, reach the target TDS value, get the water immediately, need not to wait. Optionally, the seventh solenoid valve 87 and the eighth solenoid valve 88 are alternately opened according to a preset program according to the TDS value requirement of water intake by a user, each opening time is not more than 3 seconds, and after the water intake is finished, all loads are closed.
That is to say, through setting up first storage water tank 91 and second storage water tank 92, guarantee that the user can directly go out water when getting first TDS value and second TDS value water, need not to wait for. The seventh solenoid valve 87 and the eighth solenoid valve 88 ensure that the user can take water from the first water storage tank 91 and the second water storage tank 92 respectively to mix and then directly discharge water without waiting when taking any needed TDS value water. When getting required TDS value water, seventh solenoid valve 87 and eighth solenoid valve 88 are opened in turn, and open time at every turn does not exceed 3 seconds, guarantee that the user when the water intaking, the TDS value of water intaking does not receive the influence of water intaking volume and restriction, reduces the difference between the actual TDS value of user's water intaking and its required TDS value. By adopting the method of two water tanks, when the drinking water requirements of users in different scenes are met, the users can take water immediately when switching different TDS values without waiting, and the improvement of user experience is facilitated.
Further, the water outlet pipeline also comprises: the water outlet section 56, the first water outlet branch 54 and the second water outlet branch 55 are all connected with the water outlet section 56, and the water outlet element 61 is arranged on the water outlet section 56. When the water outlet element 61 is opened, the user can access the purified water in the water outlet section 56.
The raw water port 2 is a raw water tank 2, and the water outlet pipeline is selectively communicated or disconnected with the raw water tank 2 so as to selectively recover water in the electric purification module 1. Specifically, when the water outlet pipeline is communicated with the raw water tank 2, the raw water tank 2 can recover water in the electric purification module 1, so that water resources are saved. When the water outlet pipeline is disconnected with the original water tank 2, the fresh water in the water outlet pipeline can be used by users, and the concentrated water in the water outlet pipeline can be drained away.
The water purification system 10 further comprises a concentrated water recovery part 3, and the water outlet pipeline is selectively communicated or disconnected with the concentrated water recovery part 3 so as to selectively recover the concentrated water in the electric purification module 1. Specifically, when the outlet pipe communicates with the concentrated water recovery unit 3, the concentrated water in the outlet pipe can be discharged through the concentrated water recovery unit 3. When the water outlet pipeline is disconnected with the concentrated water recovery part 3, the water in the water outlet pipeline can be recovered by the raw water tank 2, thereby saving water resources.
The concentrate recovery unit 3 may be a concentrate tank or a drain. In the embodiment of fig. 1, the concentrate recovery unit 3 may be a concentrate tank, and the concentrate tank and the raw water tank 2 are two chambers separated by a partition plate 21. In alternative embodiments, the position of divider plate 21 may be adjusted to vary the volume of the concentrate and raw water tanks 2.
In some embodiments, not shown, the concentrate tank and the raw water tank 2 may be independent of each other with a certain distance between them.
In the present invention, "fresh water" refers to purified pure water, and "concentrated water" refers to concentrated waste water, and does not mean the taste of water.
Specifically, the electrical purification module 1 has a fresh water inlet 11, a concentrated water inlet 12, a fresh water outlet 13, and a concentrated water outlet 14, the water inlet pipeline includes a fresh water inlet pipeline 41 and a concentrated water inlet pipeline 42, one end of the fresh water inlet pipeline 41 and one end of the concentrated water inlet pipeline 42 are directly or indirectly connected to the raw water tank 2, the fresh water inlet pipeline 41 is connected to the fresh water inlet 11, the concentrated water inlet pipeline 42 is connected to the concentrated water inlet 12, after the water in the raw water tank 2 enters the fresh water inlet pipeline 41 and the concentrated water inlet pipeline 42, the water in the fresh water inlet pipeline 41 enters the electrical purification module 1 through the fresh water inlet 11, and the water in the concentrated water inlet pipeline 42 enters the electrical purification module 1 through the concentrated water inlet 12. The water outlet pipeline comprises a main water outlet pipeline 53, a fresh water outlet pipeline 51 and a concentrated water outlet pipeline 52, the fresh water outlet 13 is used for discharging fresh water, the concentrated water outlet 14 is used for discharging fresh water concentrated water, one end of the fresh water outlet pipeline 51 is connected with the fresh water outlet 13, the other end of the fresh water outlet pipeline 51 is connected with the main water outlet pipeline 53, the concentrated water outlet pipeline 52 is connected with the concentrated water outlet 14, fresh water in the electric purification module 1 enters the fresh water outlet pipeline 51 through the fresh water outlet 13, and concentrated water in the electric purification module 1 enters the concentrated water outlet pipeline 52 through the concentrated water outlet 14.
The first outlet branch 54 and the second outlet branch 55 are disposed in parallel between the main outlet pipe 53 and the outlet section 56. The parallel arrangement can realize that water is respectively stored in the first water storage tank 91 and the second water storage tank 92, and the two water storage tanks do not influence each other.
The water purification system 10 further includes: the first flow regulating valve 411, the first flow regulating valve 411 is arranged on the fresh water inlet pipeline 41, and the first flow regulating valve 411 is used for regulating the inlet water flow of the fresh water inlet pipeline 41 entering the electric purification module 1; and/or the second flow regulating valve 421, the second flow regulating valve 421 being disposed on the concentrated water inlet pipeline 42, the second flow regulating valve 421 being configured to regulate the inlet flow of the concentrated water inlet pipeline 42 into the electrical purification module 1. In other words, at least one of the fresh water inlet pipe 41 and the concentrated water inlet pipe 42 is provided with a flow regulating valve to regulate the inlet water flow of the corresponding pipe.
In the embodiment shown in fig. 1, the fresh water inlet pipe 41 is provided with a first flow regulating valve 411, and the concentrated water inlet pipe 42 is provided with a second flow regulating valve 421. On one hand, the flow control valve ensures that the flow control process is finished at the front end of the electric purification module 1 when water is produced, so that the electric purification module 1 is prevented from water leakage or desalination rate reduction due to pressure bearing, on the other hand, the electric purification module 1 is fully opened when fresh water and concentrated water are replaced by raw water, so that the replacement time is shortened, the scouring force on the membrane surface of the concentrated water side in the electric purification module 1 can be increased, and the scaling on the membrane surface of the concentrated water side is prevented.
The main water outlet pipe 53 is provided with a first electromagnetic valve 81, and the first electromagnetic valve 81 is used for controlling the circulation and the disconnection of water in the main water outlet pipe 53. Specifically, when the first solenoid valve 81 is opened, the water in the fresh water outlet pipe 51 can enter the main outlet pipe 53 and then be stored in the storage tank. When the first electromagnetic valve 81 is closed, the water in the fresh water outlet pipeline 51 cannot reach the water storage tank through the main outlet pipeline 53.
The fresh water outlet pipeline 51, the main outlet pipeline 53 and the concentrated water outlet pipeline 52 are all connected with the connecting pipeline 71, the connecting pipeline 71 comprises a first branch section 711 and a second branch section 712, one end of the first branch section 711 is connected with the fresh water outlet pipeline 51 and the main outlet pipeline 53, the other end of the first branch section 711 is connected with the concentrated water outlet pipeline 52, the second branch section 712 is connected with the first branch section 711, the first branch section 711 is provided with a second electromagnetic valve 82, and the second electromagnetic valve 82 is used for controlling the circulation and disconnection of water in the first branch section 711. Specifically, when the second solenoid valve 82 is opened, the water in the fresh water outlet pipeline 51 can enter the first branch section 711 and then enter the second branch section 712. When the second solenoid valve 82 is closed, the water in the fresh water outlet pipeline 51 cannot enter the second branch section 712 through the first branch section 711.
A concentrated water recovery pipeline 72 is arranged between the second branch 712 and the concentrated water recovery part 3, a third electromagnetic valve 83 is arranged on the concentrated water recovery pipeline 72, and the third electromagnetic valve 83 is used for controlling the circulation and disconnection of water in the concentrated water recovery pipeline 72. Specifically, when the third electromagnetic valve 83 is opened, the water in the second branch 712 can enter the concentrated water recovery pipe 72 and then reach the concentrated water recovery portion 3. When the third electromagnetic valve 83 is closed, the water in the second branch 712 cannot reach the concentrated water recovery portion 3 through the concentrated water recovery line 72.
A raw water recovery pipeline 73 is arranged between the second branch 712 and the raw water tank 2, a fourth electromagnetic valve 84 is arranged on the raw water recovery pipeline 73, and the fourth electromagnetic valve 84 is used for controlling the circulation and the disconnection of water in the raw water recovery pipeline 73. Specifically, when the fourth solenoid valve 84 is opened, the water in the second branch 712 may enter the raw water recovery line 73 and reach the raw water tank 2. When the fourth electromagnetic valve 84 is closed, the water in the second branch 712 cannot reach the raw water tank 2 through the raw water recovery pipe 73.
When the first electromagnetic valve 81 and the third electromagnetic valve 83 are opened and the second electromagnetic valve 82 and the fourth electromagnetic valve 84 are closed, the fresh water outlet pipeline 51 is communicated with the outlet main pipeline 53, and the concentrated water outlet pipeline 52 is communicated with the concentrated water recovery part 3; when the first solenoid valve 81 and the third solenoid valve 83 are closed and the second solenoid valve 82 and the fourth solenoid valve 84 are opened, both the fresh water outlet pipeline 51 and the concentrated water outlet pipeline 52 are communicated with the raw water tank 2.
During water production, voltage is applied to the electric purification module 1, water enters the electric purification module 1, the first electromagnetic valve 81 and the third electromagnetic valve 83 are opened, the second electromagnetic valve 82 and the fourth electromagnetic valve 84 are closed, so that the concentrated water outlet pipeline 52 is communicated with the concentrated water recovery part 3, concentrated water in the electric purification module 1 is discharged to the concentrated water recovery part 3 through the concentrated water recovery pipeline 72, and fresh water in the electric purification module 1 enters the fresh water outlet pipeline 51. Meanwhile, the fresh water outlet pipeline 51 is communicated with the main water outlet pipeline 53, and at this time, if the fifth electromagnetic valve 85 is opened, the first water storage tank 91 can obtain purified fresh water; if the sixth solenoid valve 86 is opened, the second storage tank 92 can be supplied with purified fresh water. If the fifth solenoid valve 85 and the sixth solenoid valve 86 are simultaneously opened, the first storage tank 91 and the second storage tank 92 can simultaneously obtain purified fresh water.
After the voltage applied to the electrical purification module 1 is removed and water is fed into the electrical purification module 1, the first electromagnetic valve 81 and the third electromagnetic valve 83 are closed, and the second electromagnetic valve 82 and the fourth electromagnetic valve 84 are opened, so that the fresh water outlet pipeline 51 and the concentrated water outlet pipeline 52 are both communicated with the raw water tank 2 through the raw water recovery pipeline 73, and therefore, in the process of replacing the water in the electrical purification module 1 with the raw water, the fresh water and the concentrated water in the electrical purification module 1 flow back to the raw water tank 2, so that the fresh water and the concentrated water in the electrical purification module 1 are recovered.
In other words, by controlling the opening or closing of the first electromagnetic valve 81, the second electromagnetic valve 82, the third electromagnetic valve 83, and the fourth electromagnetic valve 84, it can be ensured that the fresh water and the concentrated water in the electrical purification module 1 flow back to the raw water tank 2 in the process of replacing the water in the electrical purification module 1 with raw water, thereby saving water resources.
In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Referring to fig. 1, a self-priming pump 62 is disposed on the water inlet pipeline, and the self-priming pump 62 is used for providing a driving force for the water at the raw water inlet 2 to flow into the electrical purification module 1. In some embodiments, a static pressurization method may be adopted, the voltage required when the TDS value of the effluent of the electrical purification module 1 is the TDS value stored in the water storage tank is applied to the electrical purification module 1, the voltage application time is kept at t1 seconds, the self-priming pump 62 is started after t1 seconds to take water from the raw water tank 2 into the electrical purification module 1, the effluent at the fresh water outlet 13 of the electrical purification module 1 can obtain fresh water with the TDS value stored in the water storage tank, and the concentrated water is directly discharged to the concentrated water recovery unit 3. After the system water is finished at every turn, the voltage applied to the electric purification module 1 is removed, the self-priming pump 62 takes water from the raw water tank 2 and enters the electric purification module 1, and the fresh water and the concentrated water in the electric purification module 1 are replaced to be raw water.
Referring to fig. 1, a pre-filter 63 is disposed between the raw water inlet 2 and the electrical purification module 1, and the pre-filter 63 is used for filtering impurities in the raw water flowing out from the raw water inlet 2. As shown in fig. 1, the water inlet pipeline further includes a main water inlet pipeline 43, one end of the main water inlet pipeline 43 is connected to the raw water tank 2, and both the fresh water inlet pipeline 41 and the concentrated water inlet pipeline 42 are connected to the other end of the main water inlet pipeline 43. That is, one ends of the fresh water inlet line 41 and the concentrated water inlet line 42 are indirectly connected to the raw water tank 2 through the main water inlet line 43. Raw water in the raw water tank 2 enters the electric purification module 1 through two paths of a fresh water inlet pipeline 41 and a concentrated water inlet pipeline 42. The pre-filter 63 is disposed on the main water inlet pipe 43, so that impurities in the raw water flowing out of the raw water tank 2 are removed on the main water inlet pipe 43. In some embodiments, not shown, a pre-filter 63 may also be disposed on the fresh water inlet line 41 and the concentrated water inlet line 42 to remove impurities from the raw water flowing from the raw water tank 2 on the fresh water inlet line 41 and the concentrated water inlet line 42.
Referring to fig. 1, a post-filter 64 is disposed between the electrical purification module 1 and the water storage tank, and the post-filter 64 is used for filtering fresh water impurities flowing out of the electrical purification module 1. As shown in fig. 1, the post-filter 64 is disposed on the main water outlet pipe 53, so as to remove impurities in the fresh water flowing out from the electrical purification module 1 on the main water outlet pipe 53. In some embodiments, not shown, a post-filter 64 may also be disposed on the fresh water outlet line 51 and the concentrated water outlet line 52, so as to remove impurities from the fresh water flowing out of the electrical purification module 1 on the fresh water outlet line 51 and the concentrated water outlet line 52. Alternatively, in other embodiments, not shown, a post-filter 64 may also be provided on the first outlet branch 54 and the second outlet branch 55, so as to remove impurities from the fresh water flowing out of the electrical purification module 1 on the first outlet branch 54 and the second outlet branch 55.
Referring to fig. 1, an instant heating module 65 is disposed at the water outlet of the water storage tank, and the instant heating module 65 is used for heating the fresh water flowing out of the water storage tank, so as to obtain the water outlet temperature required by the user. As shown in fig. 1, the instant heating module 65 is disposed on the water outlet section 56, so that after the instant heating module 65 heats the water in the water outlet section 56, a desired outlet water temperature can be obtained at the water outlet element 61, and the temperature loss is reduced.
A water suction pump 93 is arranged at the water outlet of the water storage tank, and the water suction pump 93 is used for providing water taking driving force to pump water in the water storage tank for use. The water pump 93 ensures that the water outlet flow is controlled to be constant when water is taken, and the instant heating module 65 at the rear end is matched to better play an instant heating role.
The main working principle of the water purification system 10 of the embodiment of the invention shown in fig. 1 is as follows: during system water, self priming pump 62 gets into leading filter core 63 on the main water inlet pipeline 43 from former water tank 2 water intaking, and the back divide into fresh water inlet pipe 41 and gets into electric purification module 1 and dense water inlet pipe 42 through second flow control valve 421 entering electric purification module 1 through first flow control valve 411, and after electric purification module 1, fresh water flows into rearmounted filter core 64, flows into the storage water tank afterwards and stores, and dense water is arranged to dense water recovery unit 3. After making water at every turn, close the voltage of applying for electric purification module 1, self priming pump 62 gets into electric purification module 1 from former water tank 2 water intake, and the fresh water, the dense water in the replacement electric purification module 1 are raw water. When water is taken, the water pump 93 takes water from the water storage tank and discharges the water through the instant heating module 65 on the water outlet section 56 for drinking.
In the water purification system 10 shown in fig. 1, two water storage tanks, namely a first water storage tank 91 and a second water storage tank 92, are used for storing water with a high TDS value and water with a low TDS value respectively, and when a user needs water with a high TDS value or a low TDS value, the water pump 93 directly takes water from the corresponding water storage tank and discharges the water after passing through the instant heating module 65 for drinking; when the TDS value of the water that the user needs is between these two TDS values, mix again from these two water storage tank water intaking according to the setting program, discharge behind instant heating module 65 and drink.
Different water use scenes of users are preset, in different scenes, the outlet water temperature of the drinking water corresponds to the TDS value one by one, and the inlet water flow is determined according to the water use temperatures in different water use scenes (determined by the instant heating module 65). For example, a coffee brewing scenario corresponds to a TDS value of 125ppm, a temperature of 70 ℃, and a water inlet flow rate of 500 mL/min. Taking TDS values of 30ppm, 80ppm and 125ppm as examples, the first water storage tank 91 stores water having a TDS value of 30ppm, and the second water storage tank 92 stores water having a TDS value of 125 ppm. Table one shows the specific implementation process of taking water with different TDS values. When the user selects water with a TDS value of 30ppm, the suction pump 93 takes water directly from the first water storage tank 91; when the user selects water with a TDS value of 125ppm, the suction pump 93 takes water directly from the second water storage tank 92; when a user selects water with a TDS value of 80ppm, the seventh electromagnetic valve 87 and the eighth electromagnetic valve 88 are alternately opened, and the water suction pump 93 respectively takes water from the first water storage tank 91 and the second water storage tank 92 and then mixes the water; the water intake is discharged through the instant heating module 65 for drinking each time.
Implementation process for taking water with different TDS values
According to a TDS switching method of a water purification system in a second aspect of the present invention, where the water purification system is the water purification system of the above embodiment, referring to fig. 2, the TDS switching method may include:
step S1, water making step: detecting the water level position in each water storage tank, starting the self-priming pump 62 when the water level position is lower than the target water level height, applying voltage required by the TDS value stored in the water storage tank to the electric purification module 1, and starting water production; stopping water production when the water level in the water storage tank rises to the target water level height;
step S2, water intake step: the fresh water of the target TDS value is obtained by taking water from one of the storage tanks, or by taking water from a plurality of storage tanks of fresh water having the same TDS value and mixing the water, or by taking water from storage tanks of fresh water having different TDS values and mixing the water.
After the water extraction is finished, all the loads are closed.
According to a TDS switching method of the water purification system 10 in a third embodiment of the invention, where the water purification system 10 is the water purification system 10 in the above embodiment, referring to fig. 3, the TDS switching method may include:
step S10, water making step: detecting the water level position in the first water storage tank, starting the self-priming pump 62 when the water level position is lower than the target water level height of the first water storage tank, applying voltage required when the voltage is a first TDS value to the electric purification module 1, opening the first electromagnetic valve, the third electromagnetic valve and the fifth electromagnetic valve, and starting water production; when the water level position in the first water storage tank rises to the target water level height in the first water storage tank, closing the first electromagnetic valve, the third electromagnetic valve and the fifth electromagnetic valve, and stopping water production;
detecting the water level position in the second water storage tank, starting the self-priming pump 62 when the water level position is lower than the target water level height of the second water storage tank, applying the voltage required when the voltage is the second TDS value to the electric purification module 1, opening the first electromagnetic valve, the third electromagnetic valve and the sixth electromagnetic valve, and starting water production; and when the water level position in the second water storage tank rises to the target water level height in the second water storage tank, closing the first electromagnetic valve, the third electromagnetic valve and the sixth electromagnetic valve and stopping water production.
Step S20, water intake step: when the target TDS value is the first TDS value, starting the water suction pump 93, opening the seventh electromagnetic valve 87, and taking fresh water with the first TDS value from the first water storage tank; when the target TDS value is the second TDS value, the water suction pump 93 is started, the eighth solenoid valve 88 is opened, and fresh water with the second TDS value is taken from the second water storage tank; when the target TDS value is between the first TDS value and the second TDS value, water is discharged after water is mixed from the first water storage tank and the second water storage tank respectively.
After the water extraction is finished, all the loads are closed.
Further, when water production is started, the second electromagnetic valve and the fourth electromagnetic valve are closed; and after stopping water production, opening the second electromagnetic valve and the fourth electromagnetic valve, replacing the fresh water and the concentrated water in the electric purification module with raw water, simultaneously recovering the fresh water and the concentrated water in the electric purification module, and closing all the loads after t seconds.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (14)
1. A water purification system, comprising: the electric purification module is suitable for purifying the entering water, the electric purification module is connected with a water inlet pipeline and a water outlet pipeline, the water inlet pipeline is connected with an original water gap, the original water at the original water gap enters the electric purification module through the water inlet pipeline, a water storage tank for storing fresh water is arranged on the water outlet pipeline, and the fresh water with the target TDS value is obtained by taking water from the water storage tank.
2. The water purification system of claim 1, wherein the number of the storage tanks is plural, and the TDS values of the fresh water in at least two of the storage tanks are not equal, and the fresh water with the target TDS value is obtained by taking water from one of the storage tanks, or by taking a mixture of water from a plurality of the storage tanks having fresh water with the same TDS value, or by taking a mixture of water from the storage tanks having fresh water with different TDS values.
3. The water purification system of claim 1, wherein the water storage tanks comprise a first water storage tank for storing fresh water at a first TDS value and a second water storage tank for storing fresh water at a second TDS value, the first TDS value being unequal to the second TDS value;
the water outlet pipeline comprises: the water purifier comprises a first water outlet branch and a second water outlet branch, wherein the first water storage tank is arranged in the first water outlet branch, the second water storage tank is arranged in the second water outlet branch, a fifth electromagnetic valve is arranged at one end of the electric purification module facing the first water storage tank, a sixth electromagnetic valve is arranged at one end of the electric purification module facing the second water storage tank, a seventh electromagnetic valve is arranged at one end of the electric purification module facing the first water storage tank, and an eighth electromagnetic valve is arranged at one end of the electric purification module facing the second water storage tank.
4. The water purification system of claim 3, wherein the water outlet circuit further comprises: and the first water outlet branch and the second water outlet branch are connected with the water outlet section, and a water outlet element is arranged on the water outlet section.
5. The water purification system of claim 4, wherein the raw water port is a raw water tank, and the water outlet pipeline is selectively connected or disconnected with the raw water tank to selectively recover water in the electric purification module;
the water purification system also comprises a concentrated water recovery part, and the water outlet pipeline is selectively communicated or disconnected with the concentrated water recovery part so as to selectively recover the concentrated water in the electric purification module.
6. The water purification system of claim 5, wherein the electrical purification module has a fresh water inlet, a concentrated water inlet, a fresh water outlet, and a concentrated water outlet, the water inlet pipes include a fresh water inlet pipe and a concentrated water inlet pipe, the fresh water inlet pipe is connected to the fresh water inlet, the concentrated water inlet pipe is connected to the concentrated water inlet, the water outlet pipes include a main water outlet pipe, a fresh water outlet pipe and a concentrated water outlet pipe, one end of the fresh water outlet pipe is connected to the fresh water outlet and the other end of the fresh water outlet pipe is connected to the main water outlet pipe, the concentrated water outlet pipe is connected to the concentrated water outlet, and the first and second water outlet branches are disposed in parallel between the main water outlet pipe and the water outlet section.
7. The water purification system of claim 6, wherein the water outlet main pipe is provided with a first solenoid valve;
the fresh water outlet pipeline, the main water outlet pipeline and the concentrated water outlet pipeline are all connected with a connecting pipeline, the connecting pipeline comprises a first branch section and a second branch section, one end of the first branch section is connected with the fresh water outlet pipeline and the main water outlet pipeline, the other end of the first branch section is connected with the concentrated water outlet pipeline, the second branch section is connected with the first branch section, and a second electromagnetic valve is arranged on the first branch section;
a concentrated water recovery pipeline is arranged between the second branch section and the concentrated water recovery part, and a third electromagnetic valve is arranged on the concentrated water recovery pipeline;
a raw water recovery pipeline is arranged between the second branch section and the raw water tank, and a fourth electromagnetic valve is arranged on the raw water recovery pipeline;
when the first electromagnetic valve and the third electromagnetic valve are opened and the second electromagnetic valve and the fourth electromagnetic valve are closed, the fresh water outlet pipeline is communicated with the main outlet pipeline, and the concentrated water outlet pipeline is communicated with the concentrated water recovery part; when the first electromagnetic valve and the third electromagnetic valve are closed and the second electromagnetic valve and the fourth electromagnetic valve are opened, the fresh water outlet pipeline and the concentrated water outlet pipeline are both communicated with the raw water tank.
8. The water purification system of any one of claims 1-7, wherein a self-priming pump is disposed on the water inlet line for providing a driving force for the flow of the raw water inlet into the electrical purification module.
9. The water purification system according to any one of claims 1-7, wherein a pre-filter element is arranged between the raw water port and the electrical purification module, and the pre-filter element is used for filtering impurities in the raw water flowing out of the raw water port.
10. The water purification system of any one of claims 1 to 7, wherein a post-filter element is provided between the electrical purification module and the storage tank for filtering fresh water impurities flowing out of the electrical purification module.
11. The water purification system of any one of claims 1-7, wherein an instant heating module is provided at the water outlet of the storage tank for heating the fresh water flowing out of the storage tank.
12. A TDS switching method for a water purification system, the water purification system being one of claims 1 to 11, the TDS switching method comprising:
water preparation: detecting the water level position in each water storage tank, and starting water production when the water level position is lower than the target water level height; stopping water production when the water level position in the water storage tank rises to the target water level height;
a water taking step: the fresh water of the target TDS value is obtained by taking water from one of the storage tanks, or by mixing water from a plurality of the storage tanks having fresh water of the same TDS value, or by mixing water from the storage tanks having fresh water of different TDS values.
13. A TDS switching method of a water purification system, the water purification system being the water purification system of claim 7, the TDS switching method comprising:
water preparation: detecting the water level position in the first water storage tank, and opening the first electromagnetic valve, the third electromagnetic valve and the fifth electromagnetic valve to start water production when the water level position is lower than the target water level height of the first water storage tank; when the water level position in the first water storage tank rises to the target water level height in the first water storage tank, closing the first electromagnetic valve, the third electromagnetic valve and the fifth electromagnetic valve, and stopping water production;
detecting the water level position in the second water storage tank, and opening the first electromagnetic valve, the third electromagnetic valve and the sixth electromagnetic valve to start water production when the water level position is lower than the target water level height of the second water storage tank; when the water level position in the second water storage tank rises to the target water level height in the second water storage tank, closing the first electromagnetic valve, the third electromagnetic valve and the sixth electromagnetic valve, and stopping water production;
a water taking step: taking fresh water of a first TDS value from the first storage tank; taking fresh water of a second TDS value from the second storage tank; when the target TDS value is between the first TDS value and the second TDS value, mixed water is taken from the first water storage tank and the second water storage tank respectively.
14. The TDS switching method of a water purification system of claim 13, wherein the second solenoid valve and the fourth solenoid valve are closed when water production is started; and after water production is stopped, opening the second electromagnetic valve and the fourth electromagnetic valve, replacing the fresh water and the concentrated water in the electric purification module with raw water, and simultaneously recovering the fresh water and the concentrated water in the electric purification module.
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| CN214880871U (en) * | 2020-12-10 | 2021-11-26 | 佛山市美的清湖净水设备有限公司 | Water purification system |
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