CN105461028B - Water softener and water supply method thereof - Google Patents
Water softener and water supply method thereof Download PDFInfo
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- CN105461028B CN105461028B CN201410404630.5A CN201410404630A CN105461028B CN 105461028 B CN105461028 B CN 105461028B CN 201410404630 A CN201410404630 A CN 201410404630A CN 105461028 B CN105461028 B CN 105461028B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 730
- 238000000034 method Methods 0.000 title claims abstract description 59
- 239000008234 soft water Substances 0.000 claims abstract description 203
- 239000008400 supply water Substances 0.000 claims abstract description 16
- 230000008929 regeneration Effects 0.000 claims description 44
- 238000011069 regeneration method Methods 0.000 claims description 44
- 238000002242 deionisation method Methods 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 238000005086 pumping Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims 1
- 239000008399 tap water Substances 0.000 abstract description 4
- 235000020679 tap water Nutrition 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 35
- 230000005686 electrostatic field Effects 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010612 desalination reaction Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The invention provides a water softener and a water supply method thereof. The water softener includes water storage bucket and soft water module, the water storage bucket configures into: under the water using state, providing partial or all water; the soft water module is configured to: under the water use state, when the first TDS index of the water in the water storage bucket is greater than the preset first TDS threshold value, start to produce soft water, with the water storage bucket supplies water outwards together. When the water supply state is in a water use state, the water softener firstly utilizes the soft water in the water storage barrel to supply water to the outside, the water storage barrel also can fill tap water into the water storage barrel while supplying water to the outside, when the TDS of the water in the water storage barrel exceeds a certain threshold value, the soft water module is started to enter a working period, and the produced water is used as supplementary water to be supplied to the outside together with the water in the water storage barrel. Therefore, the invention can provide sufficient water for users as much as possible under the condition of ensuring the water quality.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a water softener and a water supply method of the water softener.
Background
A large number of people in the world live in countries where there is a severe shortage of sanitary drinking water. A high percentage of these people live in rural and remote areas where few municipal drinking water treatment plants exist. People have to rely directly on surface water sources such as wells, ponds and rivers. Water from these sources can contain high levels of dissolved salts on the order of 500-3000ppm, which makes the water unsuitable for drinking purposes. Water with salt contents in the order of 500-1500ppm has an objectionable taste, and water with salt contents in excess of 1500ppm is commonly referred to as "brackish water" and is relatively difficult to swallow. Some existing water softening plants may treat the water from these sources so that the water from these sources may contain dissolved salts on the order of 500ppm or less.
However, the existing water softening equipment needs to perform a regeneration treatment after producing water for a period of time to improve the water softening performance, and the existing water softening equipment needs to interrupt the water production when performing the regeneration treatment, that is, the existing water softening equipment cannot produce water continuously, so that uninterrupted water supply cannot be realized.
Disclosure of Invention
It is an object of a first aspect of the present invention to address at least one of the disadvantages of the prior art water softening plants, by providing a water softener that can achieve an uninterrupted water supply.
A further object of the first aspect of the invention is to ensure the quality of the effluent as much as possible.
It is another further object of the first aspect of the present invention to make the rate of desalination of the water softener adjustable.
A second aspect of the present invention is to provide a water supply method of a water softener such that the water softener supplies water uninterruptedly.
According to a first aspect of the present invention, there is provided a water softener, comprising a water storage tub and a soft water module, wherein,
the water storage bucket is configured to: under the water using state, providing partial or all water;
the soft water module is configured to: in a water using state, when a first hardness index of water in the water storage barrel is larger than a preset first TDS (Total dissolved solids) threshold value, soft water production is started to supply water to the outside together with the water storage barrel.
Optionally, the soft water module is further configured to: under the non-water state, and start when first TDS index is greater than first TDS threshold value, circulate the water that comes from in the water storage bucket back to in the water storage bucket after softening to water in the water storage bucket circulates and softens.
Optionally, the soft water module is further configured to: when the water in the water storage bucket is circulated and softened in the non-water state, when the second TDS index of the water in the water storage bucket is smaller than the preset second TDS threshold value, the water in the water storage bucket stops being softened.
Optionally, the water softener further comprises:
the first TDS index is detected and obtained by the first conductivity sensor; and/or
The second conductivity sensor sets up right the circulation delivery port department of water storage bucket when the water in the water storage bucket circulates and softens, the second TDS index by the second conductivity sensor detects and obtains.
Optionally, the second TDS threshold is equal to the first TDS threshold.
Optionally, the water softener further comprises:
the water inlet main pipe is used for providing water for the water storage barrel and the soft water module; and
a first electrically controlled three-way valve having a first inlet, a first outlet and a first inlet and outlet, the first inlet communicating with the water inlet main, the first outlet communicating with the soft water inlet of the soft water module, the first inlet and outlet communicating with the circulation water outlet of the water storage bucket, the first electrically controlled three-way valve being configured to:
under the water using state, the first inlet and the first outlet are communicated;
in the water using state, if the soft water module is started to produce soft water, the first inlet and the first outlet are conducted while the first inlet and the first outlet are conducted.
Optionally, the water softener further comprises:
a water pump disposed on a pipeline between the water outlet of the water storage bucket and the water producing port of the soft water module, the water pump configured to:
in a non-water state, when the first TDS index is larger than the first TDS threshold value, the water storage tank is started to pump water in the water storage tank from a circulating water outlet of the water storage tank to the soft water module for softening, and the softened water is circulated back to the water storage tank from a water production port of the soft water module through a water outlet of the water storage tank; stopping until a second TDS index of water at the circulating water outlet of the water storage barrel is smaller than a second TDS threshold value so as to stop pumping the water in the water storage barrel into the soft water module;
the first electrically controlled three-way valve is further configured to: and when the water pump is started, the first inlet and the first outlet are communicated.
Optionally, the soft water module is a capacitive deionization module further configured to:
when the soft water production is started, if the TDS index of the soft water of the produced water is larger than the TDS threshold value of the soft water, the regeneration treatment is started;
the water pump is further configured to: stopping when the soft water module starts regeneration treatment;
the first electrically controlled three-way valve is further configured to: and when the soft water module starts regeneration treatment, the first inlet and the first outlet are communicated.
Optionally, the water softener further comprises:
and the third conductivity sensor is arranged on a water production outlet pipe of the soft water module, and the soft water TDS index is obtained by detection of the third conductivity sensor.
Optionally, the water softener further comprises:
the water outlet main pipe is configured to supply water to the outside, is communicated with the water outlet of the water storage barrel and is controllably communicated with the water producing port of the soft water module;
a concentrated discharge pipeline configured to discharge concentrated water generated when the soft water module is subjected to regeneration treatment; and
the automatically controlled three-way valve of second, it has second import, second export and dense row mouth, the second import with the product water mouth intercommunication of soft water module, the second export utilize the pipeline via the water pump respectively with the delivery port of water storage bucket with the water outlet main intercommunication, dense row mouth with dense row pipeline intercommunication, the automatically controlled three-way valve of second configures into:
when the soft water module carries out regeneration treatment, the second inlet and the concentrated discharge port are communicated;
and when the soft water module produces soft water, the second inlet and the second outlet are communicated.
According to a second aspect of the present invention, there is provided a water supply method of a water softener including a water storage tub and a water softening module, the water supply method including:
judge whether the water softener is in under the water use state and whether the first TDS index of the water in the water storage bucket is greater than predetermined first TDS threshold value, work as the water softener is in under the water use state and when first TDS index is greater than first TDS threshold value, start the water is produced to the soft water module, with the water storage bucket is outwards supplied water together.
Optionally, when the water softener is in the non-water condition and the first TDS index is greater than the first TDS threshold value, start the soft water module, circulate the water that comes from in the water storage bucket back to in the water storage bucket after softening to the water in the water storage bucket is circulated and is softened.
Optionally, when the water softener is in a non-water use state and the second TDS index of the water in the water storage bucket is smaller than a preset second TDS threshold, the water in the water storage bucket stops being softened.
Optionally, the first TDS indicator is detected by a first conductivity sensor arranged in the middle of the water storage bucket; and/or
The second TDS index is detected by a second conductivity sensor arranged at a circulating water outlet of the water storage barrel when water in the water storage barrel is circularly softened.
Optionally, the second TDS threshold is equal to the first TDS threshold.
Optionally, the soft water module is a capacitive deionization module, and the water supply method further includes:
when the soft water module is started to produce soft water, if the TDS index of the produced water is larger than the TDS threshold of the soft water, the regeneration treatment is started; wherein
The soft water TDS index is detected by a third conductivity sensor disposed on a water outlet pipe of the soft water module.
The water softener provided by the invention is provided with the water storage barrel, tap water can be stored in advance, and the water in the water softener is softened by the water softening module. When the water is in a water using state, the water softener firstly utilizes the soft water in the water storage barrel to supply water to the outside, the water storage barrel also can be filled with tap water while supplying water to the outside, when the TDS (Total dissolved solids) of the water in the water storage barrel exceeds a certain threshold value, the soft water module is started to enter a working period, and the produced water is used as supplementary water to be supplied to the outside together with the water in the water storage barrel. Therefore, the invention can provide sufficient water for users as much as possible under the condition of ensuring the water quality.
Further, when the water storage tank is in a non-water state, if the TDS of the water in the water storage tank exceeds a certain threshold value, the soft water module is started to enter a working period so as to circularly soften the water in the water storage tank and provide sufficient spare soft water for users.
In the invention, the water in the water storage barrel can be used by users all the time, thereby realizing uninterrupted water supply.
Furthermore, the soft water module in the water softener is the capacitive deionization module, so that the soft water performance is obviously improved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic structural view of a water softener according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a water supply method of a water softener in a water using state according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a water supply method of a water softener in a non-water use state according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic structural view of a water softener according to an embodiment of the present invention. The water softener includes a soft water module 120 and a water storage tub 130. The water storage tub 130 is configured to supply a part or all of the water to the outside in a water use state (i.e., the water softener supplies water to the outside). The soft water module 120 is configured to start producing soft water in a water use state and when the first TDS index of the water in the water storage tub 130 is greater than a preset first TDS threshold, to supply water to the outside together with the water storage tub 130. That is, in the embodiment of the present invention, in the water using state, the water storage tub 130 always supplies water to the outside; and soft water module 120 starts to produce soft water when the first TDS index of the water in water storage bucket 130 is greater than the preset first TDS threshold value, and supplies water with water storage bucket 130 as water supplement. Therefore, the embodiment of the invention can provide sufficient water for users as much as possible under the condition of ensuring the water quality.
In an embodiment of the invention, the TDS indicator of the water may be obtained by detecting the conductivity of the water. Accordingly, in some embodiments of the present invention, the water softener may further include a first conductivity sensor 131 disposed at a middle portion of the water storage tub 130. The first TDS indicator is detected by the first conductivity sensor 131. The first TDS threshold may be set by a user, i.e. the user sets the TDS threshold according to the set desalination rate. That is, in the embodiment of the present invention, the adjustable desalination rate can be realized by the TDS threshold. In the standby state, the water in the water storage tank 130 is soft water, and the water quality is within the TDS range acceptable to the user, and at this time, the water can be supplied to the outside only by the water storage tank 130. As the water usage increases, when the detected first TDS indicator is greater than the first TDS threshold, it indicates that only half of the soft water remains in the water storage bucket 130 at that time. In an embodiment of the present invention, when the detected first TDS indicator is greater than the first TDS threshold, the water softener may send out a prompt signal such as sound, light, electricity, etc. to prompt that only half of the qualified soft water is left in the water storage tank 130, so as to prompt the user to arrange water reasonably. If the user selects to continue using water, the soft water module 120 of the water softener starts to produce soft water, and supplies water to the outside together with the water storage tub 130. If the user chooses to stop the water supply, the water softener enters a non-water state (i.e., the water softener does not supply water to the outside).
In some embodiments of the present invention, the soft water module 120 may be further configured to start to soften the water from the water storage bucket 130 and recycle the softened water back to the water storage bucket 130 to circularly soften the water in the water storage bucket 130 in the non-water using state and when the first TDS indicator is greater than the first TDS threshold. That is, in the non-water use state, when the first TDS indicator is greater than the first TDS threshold, the water in the water storage barrel 130 flows out from the circulation water outlet, enters the soft water module 120 through the soft water inlet, flows out from the water production port of the soft water module 120 after being softened, and flows back to the water storage barrel 130 through the circulation water inlet by a pipeline.
In some embodiments of the present invention, the soft water module 120 may be further configured to stop softening the water in the water storage bucket 130 when the second TDS indicator of the water in the water storage bucket 130 is smaller than the preset second TDS threshold while the water in the water storage bucket 130 is cyclically softened in the non-water use state.
In some embodiments of the present invention, the water softener may further include a second conductivity sensor 132 disposed at the circulation outlet of the water storage tub 130 when the water in the water storage tub 130 is cyclically softened. A second conductivity sensor 132 may be used to obtain a second TDS indicator. Because when the water in the storage bucket 130 is circulated and softened, the TDS of the water at the circulation water outlet of the storage bucket 130 is generally not less than the TDS of the water at the circulation water inlet, therefore, when the second TDS index is less than the second TDS threshold value, it can be shown that the water in the entire storage bucket 130 is soft water. In some embodiments of the invention, the second TDS threshold may be equal to the first TDS threshold. Therefore, when the user sets the TDS threshold value of the water supply of the water softener, only one threshold value is set, and the operation is convenient. In an alternative embodiment, the second TDS threshold may also not be equal to the first TDS threshold. Thus, when setting the TDS threshold value of the water supply of the water softener, the user can set two threshold values respectively and independently.
In some embodiments of the present invention, in the non-water use state, when there is no water or the stored water in the water storage tub 130 is not full due to initial use, water cut-off or other reasons, the stored water in the water storage tub 130 may be full, and then it is determined whether the first TDS indicator of the water in the water storage tub 130 is greater than the first TDS threshold, and when the first TDS indicator is greater than the first TDS threshold, the soft water module 120 is activated to soften the water in the water storage tub and then circulate the softened water back to the water storage tub 130 to cyclically soften the water therein.
In an embodiment of the present invention, the soft water module 120 may be a capacitive deionization module, which may also be referred to as a CDI module. The duty cycle of the capacitive deionization module may include a water production process and a regeneration process. During the water production process, an external positive voltage is applied between two electrodes of the capacitive deionization module to form an electrostatic field, so that electric ions in water entering a channel between the two electrodes are forced to move to the electrodes with opposite charges under the action of the electrostatic field; during the regeneration process, an external reverse voltage is applied between the two electrodes to form an electrostatic field, so that the charged ions adsorbed on each electrode gradually leave the corresponding electrode under the action of the electrostatic field and enter the channel between the two electrodes to be carried away by the water entering the channel between the two electrodes. In order to enable the capacitive deionization module to implement the above-mentioned duty cycle, the water softener according to the embodiment of the present invention further includes an ac/dc power converter (not shown in the figure) to provide dc power to the capacitive deionization module, and the polarity of the dc power provided by the capacitive deionization module can be changed to ensure that the capacitive deionization module implements the water production process and the regeneration process thereof. In one embodiment, the AC/DC power converter is connected to one terminal of the capacitive deionization module, and the electrode clamping voltage is less than 1.5V, and the other terminal of the capacitive deionization module is grounded.
To enable the soft water module 120 to automatically enter the regeneration process from the water production process after being started, in some embodiments, the soft water module 120 may be further configured to start the regeneration process into the regeneration process of the soft water module duty cycle if the TDS indicator of the produced water is greater than the TDS threshold of the soft water when starting to produce soft water. Accordingly, the water softener according to the embodiment of the present invention may further include a third conductivity sensor 121 installed on the water output pipe of the soft water module 120 to detect the softened water to obtain the TDS index of the soft water. In the present invention, in the water use state, when the soft water module 120 performs the regeneration process, water is separately supplied from the water storage tub 130 to the outside.
In some embodiments, if the quality of the inlet water is poor, the water softener of the embodiment of the invention may further include a filtering device (not shown) disposed on the pipeline upstream of the soft water module 120 to filter the water entering the soft water module 120. In one embodiment, the filtration precision of the filtration device may be about 5 μm.
In alternative embodiments of the present invention, the water softener may further include a water inlet manifold 101 for supplying water to the water storage tub 130 and the soft water module 120. In the process of supplying water to the outside of the water softener, water flows out from the water storage barrel 130, and simultaneously, water is supplied into the water storage barrel 130 from the water inlet manifold 101. And the water source for supplying the soft water module 120 to the outside is also from the water inlet manifold 101. In some embodiments, the water inlet manifold 101 is in communication with the water inlet of the water storage bucket 130 and the soft water inlet of the soft water module 120, respectively. In some preferred embodiments of the present invention, the water inlet of the water storage tub 130 may be the same as the circulation water outlet thereof, and the water outlet of the water storage tub 130 may be the same as the circulation water inlet thereof. That is, in the water use state, the water in the water storage bucket 130 flows out from the circulating water inlet thereof to supply water to the outside, and simultaneously, the water from the water inlet main pipe 101 flows into the water storage bucket 130 through the circulating water outlet of the water storage bucket 130; when the soft water module 120 circularly softens the water in the water storage barrel 130 in the non-water use state, the water in the water storage barrel 130 flows out through the circulating water outlet, flows into the soft water module 120 for softening, and is circulated back into the water storage barrel 130 through the circulating water inlet.
In one embodiment, the water inlet or the circulation water outlet of the water storage barrel 130 may be disposed at the top of the barrel of the water storage barrel 130; the water outlet or the water circulation inlet of the water storage barrel 130 may be disposed at the bottom of the barrel of the water storage barrel 130, as shown in fig. 1.
In a preferred embodiment, the water inlet manifold 101 may be respectively communicated with the circulation water outlet of the water storage tub 130 and the soft water inlet of the soft water module 120 through a first electrically controlled three-way valve 102. Referring to fig. 1, the first electrically controlled three-way valve 102 has a first inlet a, a first outlet B and a first inlet/outlet C, wherein the first inlet a is communicated with the water inlet manifold 101, the first outlet B is communicated with the soft water inlet of the soft water module 120, and the first inlet/outlet C is communicated with the circulating water outlet of the water storage bucket 130.
In some embodiments, first electrically controlled, three-way valve 102 may be configured to: in the water using state, the first inlet A and the first inlet and outlet C are communicated; so that water can flow from the water inlet manifold 101 into the water storage bucket 130. In the water using state, if the soft water module 120 is started to produce soft water, the first electrically controlled three-way valve 102 conducts the first inlet a and the first outlet C and also conducts the first inlet a and the first outlet B at the same time. In this way, water from the water inlet manifold 101 may be partially flowed into the water storage tub 130 and the remaining portion into the soft water module 120.
In order to realize the circulation process when the water in the water storage barrel 130 is softened circularly, in some embodiments, a water pump 105 may be disposed on the circulation water path, so that the water in the water storage barrel 130 may flow out from the circulation water outlet and flow into the water storage barrel 130 from the circulation water inlet (i.e., the water outlet of the water storage barrel) of the water storage barrel 130 after being softened by the soft water module 120. In further embodiments, the water pump 105 may be configured to: in a non-water state, when the first TDS index is greater than the first TDS threshold, the water storage tank 130 is started to pump water from the circulating water outlet of the water storage tank 130 to the soft water module 120 for softening, and the softened water is circulated from the water production port of the soft water module 120 to the water storage tank 130 through the water outlet of the water storage tank 130; and stopping the water storage bucket 130 until the second TDS index of the water at the circulating water outlet of the water storage bucket 130 is smaller than the second TDS threshold value, so as to stop pumping the water in the water storage bucket 130 into the soft water module 120. At this time, the first electrically controlled three-way valve 102 is further configured to: when the water pump 105 is turned on, the first inlet/outlet C and the first outlet B are communicated to form a water flow path.
In some embodiments, the water pump 105 may be disposed on a pipeline between the water outlet (i.e., the circulation water inlet) of the water storage tub 130 and the water producing port of the soft water module 120. In alternative embodiments. The water pump 105 may also be disposed on a pipeline between the first inlet/outlet C of the first electrically controlled three-way valve 102 or the first outlet B of the first electrically controlled three-way valve 102 and the soft water inlet of the soft water module 120 at the circulating water outlet of the water storage tub 130. In some alternative embodiments of the present invention, the water storage tank 130 and the water pump 105 may be replaced with an RO machine water storage tank or a pressure tank.
In some embodiments, when the soft water module 120 performs the regeneration process, it suspends the softening of the water in the water storage tub 130, and at the same time, it introduces the tap water from the water inlet manifold 101 for the regeneration process, and discharges the regeneration sewage after the regeneration process. At this point, the water pump 105 is further configured to shut down when the soft water module 120 initiates the regeneration process; while first electronically controlled three-way valve 102 is further configured to: the first inlet a and the first outlet B are communicated when the soft water module 120 starts the regeneration process.
In a further embodiment, the water softener may further comprise a water outlet manifold 106, a rich exhaust line 104 and a second electrically controlled three-way valve 103. Wherein, the water outlet main 106 is configured to supply water to the outside, and is communicated with the water outlet of the water storage barrel 130, and is controllably communicated with the water producing port of the soft water module 120 through the second electrically controlled three-way valve 103. The end of the water outlet manifold 106 may be directly fitted with a faucet or a water outlet switch. The rich discharge pipe 104 is used to discharge the rich water (i.e., the water having a high ion concentration) generated when the soft water module 120 is subjected to the regeneration process. The second electrically controlled three-way valve 103 has a second inlet D, a second outlet F and a concentrated discharge port E, the second inlet D is communicated with the water producing port of the soft water module 120, the second outlet F is respectively communicated with the water outlet of the water storage barrel 130 and the water outlet header 106 via the water pump 105 by using a pipeline, and the concentrated discharge port E is communicated with the concentrated discharge pipeline 104. The second electrically controlled three-way valve 103 may be configured to: when the soft water module 120 performs the regeneration treatment, the second inlet D and the concentrated discharge E are communicated; when the soft water module 120 produces soft water, the second inlet D and the second outlet F are communicated.
In one embodiment, a sterilization device, such as an ultraviolet sterilization device or an ozone sterilization device, may be disposed on the produced water outlet pipe of the soft water module 120, so that the produced water from the soft water module 120 can be directly drunk.
In the embodiment of the present invention, after the water softener receives the water supply instruction and does not receive the water supply stop instruction, it is determined that the water outlet main 106 supplies water to the outside, that is, the water softener is in a water use state; after the water softener receives the water supply stopping instruction and does not receive the water supply instruction, and when the water softener is started for the first time and does not receive the water supply instruction, the water softener judges that the water outlet main pipe 106 does not supply water to the outside, namely the water softener is in a non-water use state.
The embodiment of the invention also provides a water supply method of the water softener, which comprises the following steps: judge whether the water softener is in under the water use state and whether the first TDS index of the water in the water storage bucket 130 is greater than predetermined first TDS threshold value, work as the water softener is in under the water use state and when first TDS index is greater than first TDS threshold value, start soft water module 120 and produce water to outwards supply water together with water storage bucket 130.
In a further embodiment, when the water softener is in the non-water using state and the second TDS indicator of the water in the water storage bucket 130 is smaller than the preset second TDS threshold, the water in the water storage bucket 130 stops being softened.
In some embodiments of the present invention, the water supply method may start the soft water module 120 when the first TDS indicator of the water in the water storage tank 130 is greater than the first TDS threshold, and simultaneously or later determine whether the water softener is in a water use state, and further enable the first electric-control three-way valve 102 and the second electric-control three-way valve 103 to open/close their corresponding ports according to their working states to form corresponding flow paths, and in cooperation with closing/opening the water pump 105, implement that the soft water module 120 supplies water to the outside together with the water storage tank 130 or the soft water module 120 circularly softens the water in the water storage tank 130.
In other embodiments of the present invention, it may be determined whether the water softener is in a water use state, and then it may be determined whether the first TDS index is greater than the first TDS threshold, when the first TDS index is greater than the first TDS threshold, the soft water module 120 is turned on, and further according to the working state of the water softener, the first electrically controlled three-way valve 102 and the second electrically controlled three-way valve 103 are turned on/off to form corresponding flow paths, and the soft water module 120 and the water storage tank 130 are supplied with water together or the soft water module 120 circularly softens the water in the water storage tank 130 by turning off/on the water pump 105.
In an alternative embodiment of the present invention, it can also be determined whether the water softener is in a water use state and whether the first TDS indicator is greater than the first TDS threshold value, when the water softener is in the water use state and the first TDS indicator is greater than the first TDS threshold value, the soft water module 120 is turned on, and the first inlet a and the first outlet C, the first inlet a and the first outlet B of the first electrically controlled three-way valve 102 are conducted, and the second inlet D and the second outlet F of the second electrically controlled three-way valve 103 are conducted, so that the soft water module 120 and the water storage bucket 130 supply water to the outside together; when the water softener is in the non-water state and the first TDS index is greater than the first TDS threshold value, the soft water module 120 is opened, and the first inlet/outlet C and the first outlet B which are communicated with the first electrically controlled three-way valve 102, the second inlet D and the second outlet F which are communicated with the second electrically controlled three-way valve 103 are opened, and the water pump 105 is opened, so that the soft water module 120 circularly softens the water in the water storage barrel 130.
The water supply method according to the embodiment of the present invention will be described in detail below with reference to the water softener according to the embodiment of the present invention in different operating states (water use state or non-water use state).
Fig. 2 is a schematic flow chart of a water supply method of a water softener in a water using state according to an embodiment of the present invention. As shown in fig. 2, the water supply method of the water softener according to the embodiment of the invention includes:
step S202: and judging whether the first TDS index is larger than a first TDS threshold value. The first TDS indicator herein refers to the TDS indicator of the water in the water storage bucket 130, and in a preferred embodiment, the first TDS indicator is the TDS indicator of the water in the middle of the water storage bucket 130.
In an embodiment of the invention, the TDS indicator of the water may be obtained by detecting the conductivity of the water. Then, the first TDS indicator may be detected by a first conductivity sensor 131 disposed at a middle portion of the water storage tub 130. The first TDS threshold may be set by a user, i.e. the user sets the TDS threshold according to the set desalination rate.
When the first TDS indicator is not greater than the first TDS threshold, step S204 is executed: the water storage barrel supplies water to the outside independently. That is, at this time, the water from the water storage tank 130 is all supplied to the water outlet manifold 106, and the soft water module 120 is not activated. In this operating state, the first inlet a and the first outlet C of the first electrically controlled three-way valve 102 are connected, the first inlet a and the first outlet B are not connected, the second inlet D and the second outlet F of the second electrically controlled three-way valve 103 are not connected, and the water pump 105 does not operate.
When the first TDS indicator is greater than the first TDS threshold, step S206 is executed: the soft water module and the water storage barrel supply water to the outside together.
In the water supply method according to the embodiment of the present invention, the water storage tub 130 supplies water to the outside all the time in a water use state; and soft water module 120 starts to produce soft water when the first TDS index of the water in water storage bucket 130 is greater than the preset first TDS threshold value, and supplies water with water storage bucket 130 as water supplement.
In this working state, the first inlet a and the first outlet C of the first electrically controlled three-way valve 102 are connected, the first inlet a is connected with the first outlet B, the second inlet D of the second electrically controlled three-way valve 103 is connected with the second outlet F, the water pump 105 does not work, and the water of the water outlet main 106 comes from the produced water of the water storage bucket 130 and the soft water module 120.
In an embodiment of the present invention, the soft water module 120 may be a capacitive deionization module, which may also be referred to as a CDI module. The duty cycle of the capacitive deionization module may include a water production process and a regeneration process. During the water production process, an external positive voltage is applied between two electrodes of the capacitive deionization module to form an electrostatic field, so that electric ions in water entering a channel between the two electrodes are forced to move to the electrodes with opposite charges under the action of the electrostatic field; during the regeneration process, an external reverse voltage is applied between the two electrodes to form an electrostatic field, so that the charged ions adsorbed on each electrode gradually leave the corresponding electrode under the action of the electrostatic field and enter the channel between the two electrodes to be carried away by the water entering the channel between the two electrodes. In order to enable the capacitive deionization module to implement the above-mentioned duty cycle, the water softener according to the embodiment of the present invention further includes an ac/dc power converter (not shown in the figure) to provide dc power to the capacitive deionization module, and the polarity of the dc power provided by the capacitive deionization module can be changed to ensure that the capacitive deionization module implements the water production process and the regeneration process thereof. In one embodiment, the AC/DC power converter is connected to one terminal of the capacitive deionization module, and the electrode clamping voltage is less than 1.5V, and the other terminal of the capacitive deionization module is grounded.
In some embodiments, to realize that the soft water module 120 automatically enters the regeneration process from the water production process after starting the operation of step S206, the TDS index size of the soft water produced by the soft water module 120 is detected, and step S208 is executed: and judging whether the TDS index of the soft water is greater than the TDS threshold of the soft water.
The TDS indicator of the soft water can be detected by a third conductivity sensor 121 disposed on the water outlet pipe of the soft water module 120.
If the index of the soft water TDS is not greater than the threshold value of the soft water TDS, the step S206 is continuously performed to supply the soft water module 120 and the water storage tub 130 with water; if the soft water TDS indicator is greater than the soft water TDS threshold, indicating that the produced water TDS of the soft water module 120 is high, step S210 is performed: and the soft water module performs regeneration treatment.
During the regeneration process, the first inlet a of the first electrically controlled three-way valve 102 is communicated with the first outlet B, and the second inlet D of the second electrically controlled three-way valve 103 is communicated with the concentrated water outlet E, so as to regenerate the soft water module 120 by using the water from the water inlet main 101.
In the present invention, in the water use state, when the soft water module 120 performs the regeneration process, water is separately supplied from the water storage tub 130 to the outside.
After the reproduction processing, step S212 is executed: the regenerated rich water is discharged from the rich water discharge line 104.
The determination of the end of the regeneration process can be, for example, that the TDS index of the soft water is smaller than the preset TDS threshold, or that the regeneration process is performed for a set time, which are well known to those skilled in the art and will not be described herein.
In the embodiment of the present invention, after step S212 is executed, step S206 is executed in a loop: the soft water module 120 is supplied with water to the outside together with the water storage tub 130. In the present invention, when the soft water module 120 is used to supply water to the outside together with the water storage tub 130, after the soft water module 120 is turned on, its working cycle includes a soft water process and a regeneration process, and when it is in the soft water process, the generated soft water is supplied to the outside together with the water storage tub 130; when the regeneration process is finished, the water storage barrel 130 supplies water to the outside temporarily, and after the regeneration process is finished, the soft water process is carried out again.
Fig. 3 is a schematic flow chart of a water supply method of a water softener in a non-water use state according to an embodiment of the present invention. As shown in fig. 3, the water supply method of the water softener according to the embodiment of the invention includes:
step S302: and judging whether the first TDS index is larger than a first TDS threshold value. Similar to step S202, the first TDS indicator is preferably detected by a first conductivity sensor 131 disposed in the middle of the water storage tub 130.
When the first TDS index is not greater than the first TDS threshold value, the water softener is in a standby state. At this time, the first inlet a and the first outlet C of the first electrically controlled three-way valve 102 are connected, the first inlet a and the first outlet B are not connected, the water in the water storage bucket 130 is soft water, and the water pump 105 does not operate. The soft water module 120 does not operate and neither produces soft water nor regenerates it.
When the first TDS indicator is greater than the first TDS threshold, step S304 is executed: and the soft water module is used for circularly softening the water in the water storage barrel. At this time, the water outlet main pipe 106 is not conducted; a first inlet A of the first electrically-controlled three-way valve 102 is not communicated with a first outlet B, the first inlet A is not communicated with a first inlet/outlet C, and the first inlet/outlet C is communicated with the first outlet B; the second inlet D of the second electrically controlled three-way valve 103 is connected to the second outlet F, and the water pump 105 operates to make the water in the water storage tank 130 flow out from the circulating water outlet, enter the soft water module 120 through the soft water inlet, flow out from the water producing port of the soft water module 120 after being softened, and flow back to the water storage tank 130 through the circulating water inlet by a pipeline.
In one embodiment, the soft water module 120 may initially drain the soft water module 120 from the rich drain line 104 when use of the soft water module is initiated. That is, the first inlet a of the first electrically controlled three-way valve 102 is first communicated with the first outlet B, and the second inlet D of the second electrically controlled three-way valve 103 is first communicated with the rich exhaust E, so as to exhaust the water in the soft water module 120 from the rich exhaust line 104. Then, the first inlet a of the first electrically controlled three-way valve 102 is not connected to the first outlet B, and the second inlet D of the second electrically controlled three-way valve 103 is not connected to the rich exhaust E, and step S304 is executed.
After the step S304 is started, the step S306 is executed: and judging whether the second TDS index is smaller than a second TDS threshold value. In one embodiment, the second TDS indicator is detected by a second conductivity sensor 132 disposed at a circulating outlet of the storage tub 130 when the water in the storage tub 130 is cyclically softened.
When the second TDS indicator is not less than the second TDS threshold, step S304 is performed to cyclically soften the water in the water storage tank 130 by the soft water module 120.
When the second TDS indicator is smaller than the second TDS threshold, step S308 is executed: the soft water module 120 stops softening the water in the water storage tub 130. At this time, the first inlet/outlet C of the first electrically controlled three-way valve 102 is not connected to the first outlet B, the second inlet D of the second electrically controlled three-way valve 103 is not connected to the second outlet F, and the water pump 105 does not operate.
Because when the water in the storage bucket 103 is circulated and softened, the TDS of the water at the circulation water outlet of the storage bucket 130 is generally not less than the TDS of the water at the circulation water inlet, therefore, when the second TDS index is less than the second TDS threshold value, it can be shown that the water in the entire storage bucket 130 is soft water. In some embodiments of the invention, the second TDS threshold may be equal to the first TDS threshold. Therefore, when the user sets the TDS threshold value of the water supply of the water softener, only one threshold value is set, and the operation is convenient. In an alternative embodiment, the second TDS threshold may also not be equal to the first TDS threshold. Thus, when setting the TDS threshold value of the water supply of the water softener, the user can set two threshold values respectively and independently.
In some embodiments of the present invention, in the non-water use state, when there is no water or the stored water in the water storage tub 130 is not full due to initial use, water cut-off or other reasons, the stored water in the water storage tub 130 may be full, and then it is determined whether the first TDS indicator of the water in the water storage tub 130 is greater than the first TDS threshold, and when the first TDS indicator is greater than the first TDS threshold, the soft water module 120 is activated to soften the water in the water storage tub 130 and then circulate the softened water back to the water storage tub 130 to cyclically soften the water therein.
It will be understood by those skilled in the art that the cycle of softening the water in the water storage tank 130 by the soft water module 120 may also be similar to the embodiment shown in fig. 2, i.e., after the soft water module 120 is started, the working cycle thereof also includes a soft water process and a regeneration process. When the water storage barrel 130 is in the soft water process, the water in the water storage barrel 130 is circularly softened; when the regeneration process is finished, the water in the water storage barrel 130 is temporarily stopped from being softened, and after the regeneration process is finished, the soft water circulation process is started.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A water softener comprises a water storage barrel and a soft water module and is characterized in that,
the water storage bucket is configured to: under the water using state, providing partial or all water;
the soft water module is configured to: in a water using state, when a first TDS index of water in the water storage barrel is larger than a preset first TDS threshold value, starting to produce soft water so as to supply water to the outside together with the water storage barrel; and the soft water module is further configured to: in a non-water state and when the first TDS index is larger than the first TDS threshold value, starting to soften the water in the water storage barrel and then circulating the softened water back to the water storage barrel so as to circularly soften the water in the water storage barrel; and the soft water module is further configured to: when the water in the water storage barrel is circularly softened in a non-water state, stopping softening the water in the water storage barrel when a second TDS index of the water in the water storage barrel is smaller than a preset second TDS threshold value;
the water softener still includes:
the water inlet main pipe is used for providing water for the water storage barrel and the soft water module;
a first electrically controlled three-way valve having a first inlet, a first outlet and a first inlet and outlet, the first inlet communicating with the water inlet main, the first outlet communicating with the soft water inlet of the soft water module, the first inlet and outlet communicating with the circulation water outlet of the water storage bucket, the first electrically controlled three-way valve being configured to: in a water using state, the first inlet and the first outlet are communicated; in a water using state, if the soft water module is started to produce soft water, the first inlet and the first outlet are communicated while the first inlet and the first outlet are communicated; and
a water pump disposed on a pipeline between the water outlet of the water storage bucket and the water producing port of the soft water module, the water pump configured to: in a non-water state, when the first TDS index is larger than the first TDS threshold value, the water storage tank is started to pump water in the water storage tank from a circulating water outlet of the water storage tank to the soft water module for softening, and the softened water is circulated back to the water storage tank from a water production port of the soft water module through a water outlet of the water storage tank; and the water pump is further configured to: stopping the water pump until a second TDS index of the water at the circulating water outlet of the water storage barrel is smaller than a second TDS threshold value so as to stop pumping the water in the water storage barrel into the soft water module;
wherein the first electrically controlled three-way valve is further configured to: and when the water pump is started, the first inlet and the first outlet are communicated.
2. The water softener according to claim 1, characterized by further comprising:
the first TDS index is detected and obtained by the first conductivity sensor; and/or
The second conductivity sensor sets up right the circulation delivery port department of water storage bucket when the water in the water storage bucket circulates and softens, the second TDS index by the second conductivity sensor detects and obtains.
3. The water softener according to claim 2,
the second TDS threshold is equal to the first TDS threshold.
4. The water softener according to claim 2,
the soft water module is a capacitive deionization module further configured to:
when the soft water production is started, if the TDS index of the soft water of the produced water is larger than the TDS threshold value of the soft water, the regeneration treatment is started;
the water pump is further configured to: stopping when the soft water module starts regeneration treatment;
the first electrically controlled three-way valve is further configured to: and when the soft water module starts regeneration treatment, the first inlet and the first outlet are communicated.
5. The water softener according to claim 4, characterized by further comprising:
and the third conductivity sensor is arranged on a water production outlet pipe of the soft water module, and the soft water TDS index is obtained by detection of the third conductivity sensor.
6. The water softener according to claim 5, characterized by further comprising:
the water outlet main pipe is configured to supply water to the outside, is communicated with the water outlet of the water storage barrel and is controllably communicated with the water producing port of the soft water module;
a concentrated discharge pipeline configured to discharge concentrated water generated when the soft water module is subjected to regeneration treatment; and
a second electric control three-way valve having a second inlet, a second outlet and a concentrated discharge port, the second inlet is communicated with the water producing port of the soft water module, the second outlet utilizes a pipeline via the water pump respectively with the water outlet of the water storage bucket and the water outlet main pipe, the concentrated discharge port is communicated with the concentrated discharge pipeline, the second electric control three-way valve is configured to:
when the soft water module carries out regeneration treatment, the second inlet and the concentrated discharge port are communicated;
and when the soft water module produces soft water, the second inlet and the second outlet are communicated.
7. A water supply method for a water softener according to any one of claims 1 to 6, which comprises a water storage tub and a water softening module, the water supply method comprising:
judging whether the water softener is in a water using state and whether a first TDS index of water in the water storage barrel is larger than a preset first TDS threshold value, and starting the soft water module to produce water to supply water to the outside together with the water storage barrel when the water softener is in the water using state and the first TDS index is larger than the first TDS threshold value;
when the water softener is in a non-water state and the first TDS index is larger than a first TDS threshold value, starting the soft water module, and recycling the softened water from the water storage barrel into the water storage barrel so as to recycle and soften the water in the water storage barrel;
when the water softener is in under the non-water use state and the second TDS index of the water in the water storage bucket is less than the preset second TDS threshold value, stop softening the water in the water storage bucket.
8. Water supply method according to claim 7,
the first TDS index is obtained by detecting a first conductivity sensor arranged in the middle of the water storage barrel; and/or
The second TDS index is detected by a second conductivity sensor arranged at a circulating water outlet of the water storage barrel when water in the water storage barrel is circularly softened.
9. Water supply method according to claim 8,
the second TDS threshold is equal to the first TDS threshold.
10. Water supply method according to claim 8,
the soft water module is a capacitive deionization module, and the water supply method further comprises:
when the soft water module is started to produce soft water, if the TDS index of the produced water is larger than the TDS threshold of the soft water, the regeneration treatment is started; wherein
The soft water TDS index is detected by a third conductivity sensor disposed on a water outlet pipe of the soft water module.
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| CN107986459B (en) * | 2016-10-27 | 2024-03-22 | 艾欧史密斯(中国)热水器有限公司 | Water treatment device and control method thereof |
| CN107986392A (en) * | 2017-12-07 | 2018-05-04 | 英特卡机电(惠州)有限公司 | A kind of water softening device water supply installation and its method of supplying water |
| CN113402090A (en) * | 2020-03-16 | 2021-09-17 | 佛山市云米电器科技有限公司 | Household water purifying device |
| CN111685702B (en) * | 2020-04-30 | 2022-04-26 | 浙江三花智能控制股份有限公司 | Control method of dish washer |
| TWI845839B (en) * | 2021-05-06 | 2024-06-21 | 范振軒 | System for treating circulating water |
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| WO2013051078A1 (en) * | 2011-10-03 | 2013-04-11 | 株式会社テクノシステム | Apparatus for producing drinking water |
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| JP4507270B2 (en) * | 2001-06-26 | 2010-07-21 | 三浦工業株式会社 | Water softening device and regeneration control method thereof |
| CN2878371Y (en) * | 2005-12-13 | 2007-03-14 | 上海瑞勇实业有限公司 | Integral cycle softening utilizing device for vehicle washing water |
| CN201554065U (en) * | 2009-12-08 | 2010-08-18 | 李�杰 | Direct-drinking water terminal water supply device |
| KR101947994B1 (en) * | 2011-05-25 | 2019-02-14 | 코웨이 주식회사 | Water treatment apparatus |
| CN102826666B (en) * | 2011-06-15 | 2016-06-01 | 杜也兵 | Water purifier and the filter gall monitoring method of device is monitored with Multi probe total dissolved solid |
| ITTO20110787A1 (en) * | 2011-09-02 | 2013-03-03 | Bitron Spa | DECALCIFICATOR DEVICE WITH CLOSED CIRCUIT REGENERATION |
| CN202945081U (en) * | 2012-11-10 | 2013-05-22 | 潍坊亿阑达电气有限公司 | Water softener |
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Effective date of registration: 20201106 Address after: 266101 No. 1 Haier Road, Laoshan District, Shandong, Qingdao Patentee after: QINGDAO HAIER SMART TECHNOLOGY R&D Co.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 No. 1 Haier Road, Laoshan District, Shandong, Qingdao Patentee before: QINGDAO HAIER SMART TECHNOLOGY R&D Co.,Ltd. |