CN115893582A - Water softener control method - Google Patents
Water softener control method Download PDFInfo
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- CN115893582A CN115893582A CN202211634932.2A CN202211634932A CN115893582A CN 115893582 A CN115893582 A CN 115893582A CN 202211634932 A CN202211634932 A CN 202211634932A CN 115893582 A CN115893582 A CN 115893582A
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- water
- softener
- water softener
- resin
- hardness
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 404
- 238000000034 method Methods 0.000 title claims abstract description 46
- 239000011347 resin Substances 0.000 claims abstract description 100
- 229920005989 resin Polymers 0.000 claims abstract description 100
- 239000008234 soft water Substances 0.000 claims abstract description 85
- 230000008929 regeneration Effects 0.000 claims abstract description 82
- 238000011069 regeneration method Methods 0.000 claims abstract description 82
- 150000003839 salts Chemical class 0.000 claims description 39
- 150000002500 ions Chemical class 0.000 claims description 23
- 239000012267 brine Substances 0.000 claims description 18
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 238000012937 correction Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 230000001502 supplementing effect Effects 0.000 claims description 8
- 239000013589 supplement Substances 0.000 claims description 6
- 230000001172 regenerating effect Effects 0.000 claims description 3
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 12
- 239000011575 calcium Substances 0.000 description 12
- 229910001425 magnesium ion Inorganic materials 0.000 description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 11
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 10
- 229910001424 calcium ion Inorganic materials 0.000 description 10
- 238000005406 washing Methods 0.000 description 9
- 239000011780 sodium chloride Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 238000011001 backwashing Methods 0.000 description 5
- 229910001415 sodium ion Inorganic materials 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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Abstract
The application relates to a water softener control method, which comprises the following steps: switch water softener to the water supply state, obtain the entry raw water hardness and the export of water softener and set for soft water hardness, calculate the target soft water total amount of resin according to the hardness parameter, acquire the water softener actual softened water volume under the water supply state and with actual softened water volume with the target soft water total amount is compared, when soft water volume more than or equal to target soft water volume, show that all sodion in the resin has all been exchanged this moment, the raw water lets in again and also can't be softened this moment, then control water softener switch to the regeneration state in order to regenerate the resin, supply with the sodion in the resin in time, be convenient for carry out subsequent raw water softening work, thereby realized the water supply state to the water softener and the accurate control of regeneration state.
Description
Technical Field
The application relates to the technical field of water softeners, in particular to a control method of a water softener.
Background
With the development of economy and the progress of society, the requirements of people on the quality of life are higher and higher, and various water treatment equipment is applied to the life of people. Common water treatment equipment includes water softeners, water purifiers, and the like. Wherein, the water softener can be widely applied to the life of people because the water softener can remove calcium and magnesium ions in water and reduce the hardness of water quality.
In the existing water softener, the multi-way valve is used as a core component for controlling the flow direction of water in the integrated water channel, and water flow can be controlled to flow in different directions in different structures by controlling the multi-way valve to be switched in different stations, so that the functions of water supply, backwashing, regeneration, water supplement and the like are realized. When the water softener supplies water, the resin in the resin tank of the water softener exchanges with calcium and magnesium ions in water to remove redundant calcium and magnesium ions in raw water, so that the aim of removing water scales (calcium carbonate or magnesium carbonate) is fulfilled, after all the resin is fully adsorbed with the calcium and magnesium ions, salt solution is supplemented to the resin tank, so that the resin achieves the effect of reduction and regeneration, and the preparation is made for the next water softening work.
However, the water softeners on the market at present have poor automatic control capability, for example, inaccurate switching between water supply and regeneration, and if water is supplied after all the resins are fully adsorbed with calcium and magnesium ions, the water softeners cannot achieve the softening function.
Disclosure of Invention
Based on this, this application provides a water softener control method to the poor problem of water softener automatic control ability, and this water softener control method can carry out accurate control to the water supply state and the regeneration state of water softener.
A control method of a water softener having a resin for softening raw water, comprising the steps of:
controlling the water softener to be switched to a water supply state;
acquiring hardness parameters, wherein the hardness parameters comprise the hardness of inlet raw water of the water softener and the hardness of outlet set soft water;
calculating the target soft water total amount of the resin according to the hardness parameter;
acquiring the actual softened water quantity of the water softener in a water supply state and comparing the actual softened water quantity with the target total soft water quantity;
and if the actual softened water amount is more than or equal to the target soft water total amount, controlling the water softener to be switched to a regeneration state so as to regenerate the resin.
In one embodiment, the control method further includes:
and if the actual softened water amount is less than the target soft water total amount, controlling the water softener to keep a water supply state.
In one embodiment, the step of obtaining the actual softened water amount of the water softener in the water supply state specifically comprises:
acquiring the water flow of the water softener outlet and the water supply state duration;
and multiplying the water flow of the water softener outlet by the water supply state duration to obtain the actual softened water amount.
In one embodiment, the step of calculating the target soft water total amount of the resin according to the hardness parameter specifically comprises:
calculating a correction coefficient K = A/(H) Into -H Go out )；
Calculating the target soft water total amount Q General assembly ＝K*Q 0 ；
Q General assembly For the target total amount of soft water, K is a correction factor, Q 0 Based on the flow rate, A is a constant value, H Into As the inlet raw water hardness, H Go out Soft water hardness is set for the outlet.
In one embodiment, the step of controlling the water softener to switch to the water supply state further comprises the following steps:
detecting whether a multi-way valve of the water softener is positioned at a water supply station or not;
and if not, controlling the multi-way valve to be switched to the water supply station.
In one embodiment, the step of switching the control water softener to the regeneration state to regenerate the resin further comprises the following steps:
detecting whether the amount of brine in a salt supply device for regenerating the resin meets a first set condition;
if not, controlling the water softener to switch to a water supplementing state so as to supplement the salt water into the salt supplying device.
In one embodiment, the step of switching the control water softener to the regeneration state to regenerate the resin specifically comprises:
controlling the water softener to switch to a first regeneration state for a first salt absorption time so as to provide a first concentration salt water to regenerate the resin;
and controlling the water softener to switch to a second regeneration state for a second salt absorption time so as to provide second-concentration brine to regenerate the resin.
In one embodiment, the first brine concentration is higher than the second brine concentration.
In one embodiment, the step of switching the control water softener to the regeneration state to regenerate the resin further comprises the following steps:
judging whether the content of the regenerated ions in the resin reaches a second set condition or not;
and if so, controlling the water softener to end the regeneration state.
In one embodiment, the step of determining whether the content of the regeneration ions in the resin reaches the second set condition specifically includes:
executing a test run process, wherein the test run process specifically comprises the following steps:
controlling the water softener to be switched to the water supply state;
acquiring the actual hardness of the soft water at the outlet of the water softener;
and judging whether the actual hardness of the outlet of the water softener is equal to the set soft water hardness of the outlet.
In the control method of the water softener, the water softener is provided with the resin for softening raw water, and the raw water is exchanged with sodium ions in the resin to remove redundant calcium and magnesium ions in the raw water, so that soft water is obtained and used by users. The control method specifically comprises the following steps: switch water softener to the water supply state, obtain the entry raw water hardness and the export of water softener and set for soft water hardness, calculate the target soft water total amount of resin according to the hardness parameter, acquire the water softener actual softened water volume under the water supply state and with actual softened water volume with the target soft water total amount is compared, when soft water volume more than or equal to target soft water volume, show that all sodion in the resin has all been exchanged this moment, the raw water lets in again and also can't be softened this moment, then control water softener switch to the regeneration state in order to regenerate the resin, supply with the sodion in the resin in time, be convenient for carry out subsequent raw water softening work, thereby realized the water supply state to the water softener and the accurate control of regeneration state.
Drawings
Fig. 1 is a first schematic flow chart illustrating a control method of a water softener according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart illustrating a water softener control method according to an embodiment of the present disclosure;
fig. 3 is a schematic flow chart illustrating a water softener control method according to an embodiment of the present disclosure;
fig. 4 is a schematic flow chart of a water softener control method provided in an embodiment of the present application;
fig. 5 is a schematic flow chart of a water softener control method provided in an embodiment of the present application;
fig. 6 is a sixth schematic flow chart illustrating a control method of a water softener according to an embodiment of the present application;
fig. 7 is a schematic flow chart diagram seven illustrating a control method of a water softener provided in an embodiment of the present application;
fig. 8 is an eighth schematic flow chart of a water softener control method provided in an embodiment of the present application;
fig. 9 is a schematic flow chart nine of a water softener control method according to an embodiment of the present application;
fig. 10 is a schematic flow chart ten illustrating a water softener control method according to an embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.
An embodiment of the present application provides a water softener (not shown) that can remove calcium and magnesium ions from raw water through ion exchange resin in a resin tank, thereby reducing water hardness to provide soft water with low calcium and magnesium ions content for users. The water softener includes integrated water route and connects water softener and the confession salt device on integrated water route, supplies the salt device to be used for in the resin supply salt water with regeneration resin tank to, be equipped with the multiple unit valve in the integrated water route, still be equipped with the ejector on the multiple unit valve with the flow direction of rivers in the control integrated water route, in order to carry out salt water regeneration to the resin tank.
The multi-way valve is provided with seven stations of a water supply station, a backwashing station, a first regeneration station, a slow washing station, a second regeneration station, a water supplementing station and a forward washing station, and can be switched among the stations so that the water softener has seven states of a water supply state, a backwashing state, a first regeneration state, a slow washing state, a second regeneration state, a water supplementing state and a forward washing state.
When the water softener is in a water supply state, the multi-way valve is in a water supply station, raw water enters the resin in the resin tank through the multi-way valve, calcium and magnesium ions in the raw water exchange with sodium ions on the resin layer to realize the softening of water quality, and generated softened water flows out through the multi-way valve to supply water for water utilization equipment.
When the water softener is in a backwashing state, the multi-way valve is positioned at a backwashing station, raw water can enter the bottom of the resin tank through the multi-way valve to wash resin in the resin tank from bottom to top, and the cleaned waste water is discharged through the multi-way valve.
When the water softener is in a first regeneration state, the multi-way valve is in a first regeneration station, raw water can flow into the ejector through the multi-way valve and is mixed with saline water in the ejector to form regeneration liquid with first concentration, the regeneration liquid enters resin in the resin tank, and the saline solution and the resin layer are mixed to displace sodium ions and magnesium ions on the resin layer and then are discharged through the multi-way valve.
When the water softener is in a slow washing state, the multi-way valve is in a slow washing station, raw water enters the bottom of the resin tank through the multi-way valve, the resin in the resin tank is washed slowly from bottom to top, and the waste water after washing is discharged through the multi-way valve.
When the water softener is in a second regeneration state, the multi-way valve is in a second regeneration station, raw water can flow into the ejector through the multi-way valve and is mixed with saline water in the ejector to form regeneration liquid with a second concentration, the regeneration liquid enters resin in the resin tank, and the saline solution and the resin layer are mixed to displace sodium ions and magnesium ions on the resin layer and then are discharged through the multi-way valve.
When the water softener is in a water supplementing state, the multi-way valve is positioned at a water supplementing station, and raw water flows into the ejector from the multi-way valve and then enters the salt supplying device to supplement water for the salt supplying device.
When the water softener is in a forward washing state, the multi-way valve is in a forward washing station, raw water can enter resin in the resin tank through the multi-way valve, water pressure slowly precipitates fluffy resin and simultaneously separates out dirt, and the cleaned sewage is discharged through the multi-way valve.
It can be understood that each state of the water softener performs different functions, however, the water softener in the market at present has poor automatic control capability, for example, the control on the water supply state is not accurate enough, for example, after all the resins fully adsorb calcium and magnesium ions, the regeneration capability of the resins in the resin tank is exhausted, and if the water supply is carried out, the water softener cannot realize the softening function.
In order to solve the above problems, the present application also provides a water softener control method applied to the above water softener, and referring to fig. 1, the control method includes the following steps:
s20, controlling the water softener to be switched to a water supply state;
specifically, the user opens the water softener to the water supply state, and raw water can enter the water softener through the water softener inlet at this moment, carries out ion exchange with the resin in the water softener, is formed soft water by the soft water and flows out from the water softener outlet and supplies the user to use.
It is understood that the content of the regeneration ions (sodium ions) contained in the resin in each water softener to soften the raw water is fixed, and after the regeneration ions are used up, the resin in the water softener can not soften the raw water any more.
S30, acquiring hardness parameters, wherein the hardness parameters comprise the hardness of raw water at an inlet of the water softener and the hardness of soft water set at an outlet of the water softener;
specifically, the hardness parameter of water quality indicates the content of calcium, magnesium, iron, aluminum, zinc and other ions in water, usually Ca 2+ 、Mg 2+ The content calculation indicates that the water quality is worse as the hardness of the water is higher, understandably, the inlet raw water hardness is the hardness of the water for local input into the water softener, the outlet set soft water hardness is the hardness of the water required by the user to satisfy the life work when the user uses the water, understandably, the inlet raw water hardness is higher than the outlet set soft water hardness, so as to soften the worse water quality into better water quality through the water softener.
S40, calculating the total amount of the target soft water of the resin according to the hardness parameter;
specifically, in the case where a user uses the water softener, the content of the regeneration ions in the resin of the water softener is determined, and after the inlet raw water hardness and the outlet set soft water hardness are determined, the total amount of water that can be softened by the determined content of the regeneration ions can be determined, that is, the target soft water total amount is a determined value.
It can be understood that when the hardness of the soft water is set to be constant at the outlet as the hardness of the inlet raw water is greater, the water softener needs to soften water with poorer quality, and more regeneration ions are needed per ml of water by the soft water, and the total amount of the target soft water is reduced. When the outlet set soft water hardness becomes smaller, the water softener needs more regeneration ions per milliliter of hard water to be softened into soft water, and the total amount of the target soft water is reduced.
That is, the larger the inlet raw water hardness, the smaller the target soft water total amount, and the smaller the inlet raw water hardness, the larger the target soft water total amount. The larger the outlet set soft water hardness is, the larger the target soft water total amount is, and the smaller the outlet set soft water hardness is, the smaller the target soft water total amount is.
S50, acquiring the actual softened water quantity of the water softener in a water supply state and comparing the actual softened water quantity with the target soft water total quantity;
referring to fig. 2, step S50 specifically includes:
s51, acquiring the actual softened water quantity of the water softener in a water supply state;
the actual softened water amount refers to the accumulated total amount of the soft water flowing out according to the outlet set soft water hardness acquired by the outlet end of the water softener during the use process of a user, and is an actual value, and the actual softened water amount is continuously increased along with the increase of the use time during the use process of the user.
Step S52, comparing the actual softened water quantity with the target soft water total quantity;
and S70, if the actual softened water amount is larger than or equal to the target soft water total amount, controlling the water softener to be switched to a regeneration state so as to regenerate the resin.
In practical design, a controller structure may be provided in the water softener, and the controller structure is used to perform operations such as obtaining an actual softened water amount in real time, calculating a target total amount of soft water, and comparing the actual softened water amount with the target total amount of soft water.
Further, steps S20 and S30 may be performed simultaneously, that is, the inlet raw water hardness and the outlet set soft water hardness are obtained by the controller while the water softener is turned on, or the inlet raw water hardness and the outlet set soft water hardness are input in advance before the water softener is turned on, so as to obtain a fixed target soft water total amount after the water softener is turned on.
When the controller detects that the actual softened water amount is larger than or equal to the target soft water total amount, the regeneration ions in the resin of the water softener are exhausted, and at the moment, if raw water is introduced into the inlet of the water softener, the water softener cannot provide a softening function. So, this application provides a method that can feed back out the in service behavior of regeneration ion in other words, and regeneration ion is used up in the resin, and control the water softener promptly and switch to the regeneration state in order to regenerate the resin to in time replenish the regeneration ion in the resin, be convenient for carry out subsequent raw water and soften the work, thereby realized the water supply state and the accurate control of regeneration state to the water softener, avoided blind water supply or blind regeneration, made the waste of water.
In one embodiment, referring to fig. 3, after step S52, the method further includes:
and S80, if the actual softened water amount is less than the target total soft water amount, controlling the water softener to keep a water supply state.
When the controller detects that the actual softened water amount is less than the target soft water total amount, which indicates that the regeneration ions in the resin of the water softener are not used up, the water softener can continue to provide the softening function, and the user can continue to use water.
It is understood that the steps S70 and S80 are alternatively performed when the water softener is operated, i.e., the water softener can be in only one state at a time.
In one embodiment, referring to fig. 4, step S51 specifically includes:
s511, obtaining water flow of an outlet of the water softener and water supply state duration;
and S512, multiplying the water flow at the outlet of the water softener by the water supply state duration to obtain the actual softened water amount.
Specifically, a flow meter can be arranged on the outlet of the water softener, the flow meter can acquire the flow of the outlet of the water softener, the water supply state duration time is the accumulated water use time of the user, the controller can only calculate to multiply the water flow of the outlet of the water softener with the water supply state duration time, and the total accumulated soft water amount acquired by the user can be acquired, namely the actual soft water amount.
In other embodiments, a control program may also be built in the flow meter to directly obtain the total amount of the soft water obtained by the user in an accumulated manner, which is not limited herein.
In one embodiment, referring to fig. 5, step S40 specifically includes:
s41, calculating a correction coefficient, wherein K = A/(H) Go into -H Go out )；
S42, calculating the total amount Q of the target soft water General (1) ＝K*Q 0 ；
Q General (1) Target Soft Water Total amount, K correction factor, Q 0 As a base flow rate; a is a numerical constant, H Go into Hardness of the inlet raw Water, H Go out Soft water hardness was set for the outlet.
The basic flow is a preset value, the water softener is tested after being delivered from a factory, the hardness of inlet raw water under a rated working condition is input, the hardness of outlet soft water suitable for people to use is set, on the basis, a basic flow value is obtained, and through a correction coefficient, after a user uses the water softener under a specific working condition, the correction is carried out to obtain the actual target total soft water quantity, Q General assembly May be greater than Q 0 May be less than Q 0 And may be equal to or greater than Q 0 。
A is a basic number, which may be any Arabic number, for the purpose of relating K to H Into -H Go out The difference values form inverse ratio, and can be selected at will according to actual conditions in actual operation.
Setting the value constant to make the correction coefficient and the inletThe difference between the raw water hardness and the soft water hardness set at the outlet is in inverse proportion, and the formula shows that H is the hardness of the soft water Go into The larger the value, the smaller the K value, Q General assembly The smaller. H Go out The larger the value, the larger the K value, Q General (1) The larger.
The value of the numerical constant is uncertain, and in practical application, the numerical constant can be set according to practical situations, and the application is not limited herein.
Thus, the formula can be input into the controller in advance, and H is directly input by a user when the user uses the formula Go into And H Go out The controller can directly calculate the total amount Q of the target soft water General (1) And the intelligent control of the water softener is realized.
In one embodiment, referring to fig. 6, step S20 further includes, before:
s11, detecting whether a multi-way valve of the water softener is positioned at a water supply station or not;
s12, if not, controlling the multi-way valve to switch to a water supply station.
As described above, when the multi-way valve is located at different stations, different flow paths can be formed, and when a user powers on or sends a signal to the water softener, the controller automatically detects the station where the multi-way valve is located after receiving the signal sent by the user, and if the multi-way valve of the water softener is detected not to be located at a water supply station, an instruction is sent to switch the multi-way valve to a water supply state, and at the moment, the water softener is switched to the water supply state.
Specifically, the multi-way valve can comprise a valve body, a valve core, a movable valve plate, a fixed valve plate, a sealing element and other parts, an inlet of the water softener and an outlet of the water softener are formed by connecting a water inlet pipe and a water outlet pipe, and switching between stations of the multi-way valve is realized by rotating the valve core and the movable valve plate relative to the fixed valve plate.
Furthermore, a corresponding driving structure and a position sensor can be arranged, the driving structure drives the valve core and the movable valve plate to rotate, and the position sensor senses a corresponding rotating position, so that the positions of the valve core and the movable valve plate are intelligently determined, and the multi-way valve is intelligently switched.
When the program of the controller is started, whether each function is normal or not needs to be self-checked, the program is initialized, the position sensor detects whether the multi-way valve is in a water supply station or not, and if the multi-way valve is not in the water supply station, the valve core is rotated to the water supply station through a driving result, so that water is supplied to a user.
Specifically, in some embodiments, the outlet of the water softener is further provided with a corresponding detecting device for detecting whether the hardness of the water discharged from the actual outlet of the water softener is equal to the hardness of the set soft water at the outlet, so as to detect whether the water softener performs water softening according to a normal set program during the water softening operation.
It will be appreciated that the above determination method will fail if the hardness of the water exiting the actual outlet of the water softener is not equal to the set soft water hardness of the outlet. At this moment, the water softener needs to be maintained firstly to ensure that the water softener performs water softening according to a normally set program.
In one embodiment, referring to fig. 7, before controlling the water softener to switch to the regeneration state to regenerate the resin in step S70, the method further includes:
s61, detecting whether the amount of brine in a salt supply device for regenerating the resin meets a first set condition;
s62, if not, controlling the water softener to switch to a water supplementing state so as to supplement the salt water into the salt supply device;
and S63, if yes, executing the step S70 to control the water softener to be switched to the regeneration state so as to regenerate the resin.
It can be understood that if the resin needs to be regenerated, the regenerated liquid (i.e. brine) needs to be supplemented into the resin through the brine supply device, and after the water softener is used for a long time, the brine amount in the brine supply device may be insufficient, and at this time, if the multi-way valve is directly switched to the regeneration state, the regeneration of the resin cannot be realized.
In order to avoid the situation, after the actual softened water amount is detected to be larger than or equal to the target water amount, whether the saline water amount in the salt supply device meets a first set condition is detected to ensure that the saline water amount is sufficient, and if the saline water amount does not meet the first set condition, the water softener is controlled to be switched to a water supplementing state firstly to supplement the saline water into the salt supply device until the saline water amount meets the first set condition. If the amount of the brine meets the first set condition, the water softener can be directly controlled to be switched to the regeneration state.
The first set condition may be a water level line, a brine content, etc., which may be a set value, such as above a water level line, and a brine content above a set number of milliliters, or a set interval, such as whether between a highest water level line and a lowest water level line, etc., and the present application is not limited thereto.
So, through detecting the salt water yield, avoid carrying out blindly or invalid regeneration to the resin, improved the intelligent control ability of water softener.
In one embodiment, referring to fig. 8, the step S70 of controlling the water softener to switch to the regeneration state to regenerate the resin specifically includes:
s71, controlling the water softener to be switched to a first regeneration state to provide first concentration brine to regenerate the resin for a first salt absorption time T1;
and S72, controlling the water softener to switch to a second regeneration state to provide second-concentration brine to regenerate the resin for a second salt absorption time T2.
Specifically, the salt water of different concentrations is different to resin regeneration's reaction rate, if regeneration earlier stage need use high concentration salt regeneration to accelerate regeneration rate, regeneration later stage uses low concentration salt liquid regeneration, improves the salt rate of utilization with province salt, and this scheme uses high, low two way regeneration, realizes that regeneration concentration is adjustable.
In one embodiment, when the water softener is switched to the first regeneration state, the multi-way valve is positioned at the first regeneration position, and the multi-way valve is communicated with the ejector to form a first salt supply channel. When the water softener is switched to a second regeneration state, the multiway valve is positioned at a second regeneration station, and the multiway valve is communicated with the ejector to form a second salt supply channel to enter a jet flow salt absorption program. Saline water of different concentrations is delivered at standard pressure by fitting different sized nozzles or throats on the jet device. And the salt absorption amount of the resin can be controlled through the salt absorption time T1 and the salt absorption time T2, so that the ejector is intelligently controlled.
In one embodiment, the controlling the water softener to switch to the regeneration state to regenerate the resin further comprises:
s91, judging whether the content of the regenerated ions in the resin reaches a second set condition or not;
and S92, if so, controlling the water softener to end the regeneration state.
Specifically, the salt water is supplied into the resin through the salt supply device until the content of the regeneration ions in the resin reaches a second set condition, at the moment, the resin is completely regenerated, the concentration of the regeneration ions reaches saturation, and at the moment, the water softener is controlled to end the regeneration state, so that the water softener is prevented from being blindly regenerated, and waste is avoided.
It can be understood that, when the water softener leaves the factory, the resin is filled with the regeneration ions, and the second set condition may be a factory-set ion concentration, so as to ensure that the resin can be completely regenerated after a period of time has elapsed since the water softener was used by a user.
In practical operation, it is difficult to determine the content of the regenerated ion concentration, and in order to determine whether the content of the regenerated ion in the resin reaches the second set condition, step S91 specifically includes:
s911, executing a trial operation process, wherein the trial operation process specifically comprises the following steps:
controlling the water softener to switch to a water supply state;
acquiring the actual hardness of the outlet of the water softener;
and judging whether the actual hardness of the outlet of the water softener is equal to the set hardness of the soft water at the outlet.
Specifically, the trial operation process is to switch the water softener to the water supply state for trial water supply, at this time, the user introduces the raw water, the regenerated resin performs soft water on the raw water, the soft water is obtained at the outlet of the water softener, if the actual hardness of the soft water at the outlet of the water softener is equal to the hardness of the soft water set at the outlet, the regeneration capacity of the resin is completely regenerated, and at this time, the water softener can be controlled to be switched to the step S20 for water supply.
Therefore, the control method of the water softener can realize the accurate control of the water softener in each state, thereby improving the automatic control capability of the water softener.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A control method of a water softener having a resin for softening raw water, characterized by comprising the steps of:
controlling the water softener to switch to a water supply state;
acquiring hardness parameters, wherein the hardness parameters comprise the hardness of inlet raw water of the water softener and the hardness of outlet set soft water;
calculating the target soft water total amount of the resin according to the hardness parameter;
acquiring an actual softened water amount of the water softener in the water supply state and comparing the actual softened water amount with the target soft water total amount;
and if the actual softened water amount is more than or equal to the target soft water total amount, controlling the water softener to be switched to a regeneration state so as to regenerate the resin.
2. The water softener control method according to claim 1, further comprising:
and if the actual softened water amount is smaller than the target soft water total amount, controlling the water softener to keep the water supply state.
3. The water softener control method according to claim 1, wherein the step of obtaining the actual softening water amount of the water softener in the water supply state specifically comprises:
acquiring the water flow of the water softener outlet and the water supply state duration;
and multiplying the water flow of the water softener outlet by the water supply state duration to obtain the actual softened water quantity.
4. The water softener control method according to claim 1, wherein the step of calculating the target soft water total amount of the resin based on the hardness parameter specifically comprises:
calculating a correction coefficient K = A/(H) Into -H Go out )；
Calculating the target soft water total amount Q General assembly ＝K*Q 0 ；
Q General (1) K is a correction factor, Q, for the target total soft water amount 0 Based on the flow rate, A is a constant value, H Into As the inlet raw water hardness, H Go out Soft water hardness is set for the outlet.
5. The water softener control method of claim 1, wherein the step of controlling the water softener to switch to the water supply state is preceded by the step of:
detecting whether a multi-way valve of the water softener is positioned at a water supply station or not;
if not, controlling the multi-way valve to switch to the water supply station.
6. The water softener control method according to claim 1, wherein the step of controlling the water softener to switch to the regeneration state to regenerate the resin is preceded by the step of:
detecting whether the amount of brine in a salt supply device for regenerating the resin meets a first set condition;
if not, controlling the water softener to switch to a water supplementing state so as to supplement the salt water into the salt supply device.
7. The water softener control method according to claim 1, wherein the step of controlling the water softener to switch to the regeneration state to regenerate the resin specifically comprises:
controlling the water softener to switch to a first regeneration state for a first salt absorption time so as to provide a first concentration salt water to regenerate the resin;
and controlling the water softener to switch to a second regeneration state for a second salt absorption time so as to provide a second concentration of brine to regenerate the resin.
8. The water softener control method of claim 7, wherein the concentration of the first brine is higher than the concentration of the second brine.
9. The water softener control method of claim 8, wherein the step of controlling the water softener to switch to a regeneration state to regenerate the resin is further followed by:
judging whether the content of the regenerated ions in the resin reaches a second set condition or not;
and if so, controlling the water softener to end the regeneration state.
10. The water softener control method according to claim 9, wherein the step of determining whether the content of the regeneration ions in the resin reaches the second set condition specifically comprises:
executing a trial operation process, wherein the trial operation process specifically comprises the following steps:
controlling the water softener to switch to the water supply state;
acquiring the actual hardness of the soft water at the outlet of the water softener;
and judging whether the actual hardness of the outlet of the water softener is equal to the set soft water hardness of the outlet.
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