Water softener

Abstract

The present invention provides a water softener, comprising: a resin filter tank having a water inlet, a water outlet and a brine outlet, with ion exchange resin disposed inside thereof, and water to be treated enters the resin filter tank from the water inlet, is treated by the ion exchange resin, and then is discharged from the water outlet of the resin filter tank; a salt tank in which salt is placed, and at least part of the salt is dissolved in water to form brine, and the brine flows into the resin filter tank through the brine outlet to regenerate the ion exchange resin; and one or more weighing sensors disposed at the top and / or bottom of the salt tank for detecting the mass of the salt tank or the salt tank and the resin filter tank. Since one or more weighing sensors are disposed at the top and / or bottom of the salt tank in the water softener of the present invention, the mass of the salt tank or the salt tank and the resin filter tank can be detected in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and particularly to a water softener. Background Art

[0002] With the rapid economic development of our country, people's demand for water is increasing day by day. The hardness of tap water (i.e., the concentration of calcium and magnesium ions) is relatively high, and there are problems such as easy scaling and poor washing and bathing experience. A household water softener can treat tap water, remove calcium and magnesium ions, obtain soft water, reduce scaling and improve the user's washing and bathing experience at the same time. The household water softener is provided with cation exchange resin. When the water softener is operating, calcium, magnesium ions and the like in the tap water will be adsorbed by the ion exchange resin, thereby reducing the hardness of the water. When the ion exchange resin reaches the critical workload, it cannot be softened and needs to be regenerated. By adding sodium chloride into the salt box to prepare saturated brine, and using the brine to rinse the ion exchange resin to make it recover its working ability. Existing water softeners mainly rely on estimating the salt addition cycle to add salt, and there is a problem that the salt addition is not timely, resulting in a poor user experience. Summary of the Invention

[0003] An object of the present invention is to provide a water softener that can detect the quality of the salt box or the salt box and the resin filter box in real time.

[0004] A further object of the present invention is to provide a water softener that can detect the remaining salt amount in real time.

[0005] In particular, the present invention provides a water softener, comprising:

[0006] A resin filter box, having a water inlet, a water outlet and a brine outlet, and ion exchange resin is provided inside. The water to be treated enters the resin filter box from the water inlet and is discharged from the water outlet after being treated by the ion exchange resin;

[0007] A salt box, in which salt is placed, and at least part of the salt is dissolved in water to form brine. The brine flows into the resin filter box through the brine outlet to regenerate the ion exchange resin; and

[0008] One or more weighing sensors, arranged at the top and / or bottom of the salt box, for detecting the quality of the salt box or the salt box and the resin filter box.

[0009] Optionally, the water softener is a split water softener, and the resin filter box and the salt box are separated from each other; the weighing sensor is configured to: detect the quality of the salt box in real time to obtain the real-time quality m 测 .

[0010] Optionally, the weighing sensor is further configured to: detect the quality of the salt box when the water level of the brine is at the standard liquid level to obtain the standard liquid level quality m 标 ;

[0011] The split-type water softener further includes:

[0012] A first control board, which includes a first storage module and a first data processing module; wherein

[0013] The first storage module is configured to store the rated water production per liter of ion exchange resin f(Y), the salt consumption per liter of ion exchange resin during a single regeneration m z , and the resin volume V of the ion exchange resin 树 ;

[0014] The first data processing module is configured to calculate one or more of the remaining salt amount m, the remaining water production volume V, and the remaining regeneration times n, where:

[0015] The remaining salt amount m is calculated according to the following formula:

[0016] m = m 测 -m 标 ,

[0017] The remaining water production volume V is calculated according to the following formula:

[0018]

[0019] The remaining regeneration times n are calculated according to the following formula:

[0020] And

[0021] A display board, configured to display one or more of the remaining salt amount m, the remaining water production volume V, and the remaining regeneration times n.

[0022] Optionally, the first control board further includes: a reminder module, and the reminder module is configured to send a salt addition signal when one and / or more of the following conditions are met:

[0023] The remaining salt amount m is less than or equal to a preset remaining salt amount threshold;

[0024] The remaining water production volume V is less than or equal to a preset remaining water production volume threshold;

[0025] The remaining regeneration times n are less than or equal to a preset remaining regeneration times threshold.

[0026] Optionally, the split-type water softener further includes:

[0027] A hardness detection device, configured to detect the real-time inlet water hardness of the water to be treated and obtain the inlet water hardness Y 实 ;

[0028] The first storage module further stores: the rated water production per liter of ion exchange resin f(Y 实 ) corresponding to the inlet water hardness value range of the water to be treated;

[0029] The first data processing module is further configured to: obtain the inlet water hardness Y 实 , and determine the corresponding rated water production f(Y 实 );

[0030] The remaining water production V is calculated according to the following formula:

[0031]

[0032] Optionally, the weighing sensor is further configured to: detect the mass when the salt tank contains no salt and brine, and obtain the empty tank mass m 箱 ;

[0033] The split-type water softener further includes:

[0034] a temperature sensor for detecting the temperature of the brine in real time to obtain the brine temperature t;

[0035] a water volume detection device for detecting the volume of the brine in real time to obtain the brine volume V 水 ;

[0036] a second control board, which includes a second storage module and a second data processing module, where

[0037] the second storage module stores: the rated water production f(Y) per liter of ion exchange resin, the salt consumption m z (t) per liter of ion exchange resin during a single regeneration corresponding to the brine temperature numerical range, the water density ρ(t) corresponding to the brine temperature numerical range, and the resin volume V of the ion exchange resin 树 ;

[0038] the second data processing module is configured to calculate one or more of the remaining salt amount m, the remaining water production V, and the remaining regeneration times n, where:

[0039] the remaining salt amount m is calculated according to the following formula:

[0040] m = m 测 - m 箱 - ρ(t) × V 水 ,

[0041] the remaining water production V is calculated according to the following formula:

[0042]

[0043] the remaining regeneration times n is calculated according to the following formula:

[0044] and

[0045] A display board configured to display one or more of the remaining salt quantity m, the remaining water production volume V, and the remaining regeneration times n.

[0046] Optionally, the water softener is an integrated water softener, and the resin filter tank is disposed inside the salt tank; the weighing sensor is configured to: detect the total mass of the resin filter tank and the salt tank in real time to obtain the real-time mass m'. 测 。

[0047] Optionally, the weighing sensor is further configured to: detect the total mass of the resin filter tank and the salt tank when the water level of the brine is at the standard liquid level to obtain the standard liquid level mass m'. 标 ;

[0048] The integrated water softener further includes:

[0049] A third control board, which includes a third storage module and a third data processing module; wherein the third storage module is configured to store the rated water production volume f(Y) per liter of ion exchange resin, the salt consumption m per single regeneration of per liter of ion exchange resin z , and the resin volume V of the ion exchange resin 树 ;

[0050] The third data processing module is configured to calculate one or more of the remaining salt quantity m, the remaining water production volume V, and the remaining regeneration times n, wherein:

[0051] The remaining salt quantity m is calculated according to the following formula:

[0052] m = m′ 测 - m′ 标 ,

[0053] The remaining water production volume V is calculated according to the following formula:

[0054]

[0055] The remaining regeneration times n is calculated according to the following formula:

[0056] And

[0057] A display board configured to display one or more of the remaining salt quantity m, the remaining water production volume V, and the remaining regeneration times n.

[0058] Optionally, the third control board further includes: a reminder module, and the reminder module is configured to send a salt addition signal when one and / or more of the following conditions are met:

[0059] The remaining salt quantity m is less than or equal to a preset remaining salt quantity threshold;

[0060] The remaining water production volume V is less than or equal to a preset remaining water production volume threshold;

[0061] The remaining regeneration times n are less than or equal to a preset remaining regeneration times threshold value.

[0062] Optionally, the integrated water softener further includes:

[0063] A hardness detection device for detecting the real-time inlet water hardness of the water to be treated and obtaining the inlet water hardness Y 实 ;

[0064] The third storage module also stores: the rated water production per liter of ion exchange resin corresponding to the inlet water hardness value range of the water to be treated f(Y 实 );

[0065] The third data processing module is further configured to: obtain the inlet water hardness Y 实 , determine its corresponding rated water production f(Y 实 );

[0066] The remaining water production V is calculated according to the following formula:

[0067]

[0068] Optionally, the weighing sensor is further configured to: detect the total mass when the salt tank is free of salt and brine and obtain the empty tank mass m' 箱 ;

[0069] The integrated water softener further includes:

[0070] A temperature sensor for detecting the temperature of the brine in real time and obtaining the brine temperature t;

[0071] A water volume detection device for detecting the volume of the brine in real time and obtaining the brine volume V 水 ;

[0072] The fourth control board, which includes a fourth storage module and a fourth data processing module, where

[0073] The fourth storage module stores: the rated water production per liter of ion exchange resin f(Y), the salt consumption per liter of ion exchange resin for a single regeneration m z (t), the water density ρ(t) corresponding to the brine temperature value range, and the resin volume V of the ion exchange resin 树 ;

[0074] The fourth data processing module is configured to calculate one or more of the remaining salt amount m, the remaining water production V, and the remaining regeneration times n, where:

[0075] The remaining salt amount m is calculated according to the following formula:

[0076] m = m′ 测 - m′ 箱 - ρ(t) × V水 ,

[0077] The remaining water production volume V is calculated according to the following formula:

[0078]

[0079] The remaining regeneration times n are calculated according to the following formula:

[0080] and

[0081] A display board configured to display one or more of the remaining salt amount m, the remaining water production volume V, and the remaining regeneration times n.

[0082] Since one or more weighing sensors are provided at the top and / or bottom of the salt tank in the water softener of the present invention, the mass of the salt tank or the salt tank and the resin filter tank can be detected in real time.

[0083] Furthermore, by providing a control board with a storage module and a data processing module in the water softener of the present invention, accurate remaining salt amount, remaining water production volume, and remaining regeneration times can be obtained in real time.

[0084] Furthermore, by providing a reminder module in the control board of the water softener of the present invention, a salt addition signal can be sent when the remaining salt amount, the remaining water production volume, and the remaining regeneration times are less than or equal to a preset remaining salt amount threshold, a preset remaining water production volume threshold, and a preset remaining regeneration times threshold, so as to timely remind the user to replenish salt into the salt tank.

[0085] Those skilled in the art will become more clear about the above and other objects, advantages, and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0086] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0087] Figure 1 is a schematic structural diagram of a split-type water softener according to an embodiment of the present invention.

[0088] Figure 2 is a schematic structural diagram of a split-type water softener according to another embodiment of the present invention.

[0089] Figure 3 is a schematic structural diagram of a split-type water softener according to yet another embodiment of the present invention.

[0090] Figure 4It is a schematic structural diagram of an integrated water softener according to an embodiment of the present invention. Detailed implementation manners

[0091] Figure 1 It is a schematic structural diagram of a split water softener 100 according to an embodiment of the present invention. The water softener 100 in the embodiment of the present invention generally includes: a resin filter tank 200, a salt tank 300, and one or more weighing sensors 500. The resin filter tank 200 has a water inlet, a water outlet, and a brine outlet, and ion exchange resin 210 is arranged inside. The water to be treated enters the resin filter tank 200 from the water inlet, is treated by the ion exchange resin 210, and then is discharged from the water outlet of the resin filter tank 200. Salt is placed in the salt tank 300, and at least part of the salt is dissolved in water to form brine, and the brine flows into the resin filter tank 200 through the brine outlet to regenerate the ion exchange resin 210. One or more weighing sensors 500 are arranged at the top and / or bottom of the salt tank 300 for detecting the mass of the salt tank 300 or the salt tank 300 and the resin filter tank 200. The ion exchange resin 210 can be a sodium-type cation exchange resin. When hard ions such as calcium and magnesium in the water to be treated (hard water) flow into the resin filter tank 200, they are adsorbed by the ion exchange resin 210, and the water quality is softened into soft water. When all the ion exchange resins 210 are fully adsorbed with calcium, magnesium and other ions, the ion exchange resin 210 is in a saturated adsorption state and cannot continue to soften hard water. At this time, the ion exchange resin 210 needs to be restored and regenerated. The reduction and regeneration of the ion exchange resin 210 in the resin filter tank 200 of the water softener 100 in the embodiment of the present invention is completed with high-concentration brine. The salt tank 300 is used to hold high-concentration brine to regenerate the ion exchange resin 210 in the resin filter tank 200. After the brine in the salt tank 300 is pumped into the resin filter tank 200, the same amount of water needs to be replenished in time for the next use. Since one or more weighing sensors 500 are arranged at the top and / or bottom of the salt tank 300 in the water softener 100 in the embodiment of the present invention, the mass of the salt tank 300 or the salt tank 300 and the resin filter tank 200 can be detected in real time.

[0092] In some embodiments, the water softener 100 in the embodiment of the present invention further includes: a control board 400 and a display board 700. The control board 400 is arranged inside the water softener 100 for obtaining the mass data measured by one or more weighing sensors 500. The display board 700 is arranged on the outer side of the water softener 100 for displaying the mass data. Since the control board 400 and the display board 700 are also provided for the weighing sensor 500 in the water softener 100 in the embodiment of the present invention, the mass of the salt tank 300 or the salt tank 300 and the resin filter tank 200 can be displayed in real time, enabling the user to obtain the mass data in real time and improving the user experience.

[0093] In some embodiments, the water softener 100 of the embodiments of the present invention is a split water softener 100, and the resin filter tank 200 and the salt tank 300 are separately arranged.

[0094] As Figure 1 shown, it is a schematic structural diagram of a split water softener 100 according to an embodiment of the present invention. The split water softener 100 includes a resin filter tank 200, a salt tank 300, a plurality of weighing sensors 500, a temperature sensor 600, a connecting wire 601, a water volume detection device 900, and a hardness detection device 800. The resin filter tank 200 is provided with a water inlet, a water outlet, and a sewage outlet at its top. The water inlet is connected to a hard water pipe 201, and the water outlet is connected to a soft water pipe 202. The resin filter tank 200 is provided with a brine outlet on its side wall, and the brine outlet is connected to a brine pipe 203. An ion exchange resin 210 is arranged inside the resin filter tank 200. The water to be treated enters the resin filter tank 200 from the water inlet and is discharged from the water outlet of the resin filter tank 200 after being treated by the ion exchange resin 210. The salt tank 300 includes an outer shell 301 and an inner shell 302. Salt is placed inside the inner shell 302, and at least part of the salt is dissolved in water to form brine. The brine flows into the resin filter tank 200 through the brine outlet to regenerate the ion exchange resin 210. The sewage outlet is used for discharging the concentrated water generated when the brine regenerates the ion exchange resin 210, and the sewage outlet is connected to a sewage pipe 204.

[0095] An air area, a brine area, and a salt area are sequentially formed in the salt tank 300 from top to bottom. The thicknesses of the air area, the brine area, and the salt area change continuously with the input or output of the brine in the salt tank 300, or the change in the remaining salt amount of the salt in the salt tank 300. It can be understood that when extracting brine from the salt tank 300 into the resin filter tank 200, since the brine is continuously pumped away, the air area thickens continuously, while the brine area thins continuously. When replenishing water to the salt tank 300, due to the increase in water, the air area will gradually thin, the brine area will thicken continuously, and because the salt in the salt tank 300 will continuously dissolve, the salt area will continuously thin.

[0096] A plurality of load cells 500 are evenly spaced and arranged at the bottom of the inner shell 302 of the salt tank 300 for detecting the mass of the salt tank 300. A temperature sensor 600 is arranged inside the inner shell 302 of the salt tank 300 for detecting the temperature of the brine. One end of the connecting wire 601 is fixed to the top of the inner shell 302 of the salt tank 300, and the other end is provided with the temperature sensor 600, and the length of the connecting wire 601 is such that the temperature sensor 600 is always immersed in the brine. A water volume detection device 900 is arranged inside the inner shell 302 of the salt tank 300 for detecting the volume of the brine in real time to obtain the volume of the brine in the current salt tank 300. A hardness detection device 800 is arranged at the water inlet for detecting the inlet hardness of the water to be treated. The control board 400 of the split-type water softener 100 is arranged inside the resin filter tank 200, and the display board 700 is arranged on the outer side surface of the resin filter tank 200. It can be understood that the control board 400 can also be arranged inside the salt tank 300, and the display board 700 can also be arranged on the outer side surface of the salt tank 300.

[0097] In some embodiments, the control board 400 of the split-type water softener 100 includes a storage module, a data processing module, and a reminder module. By pre-storing some data in the storage module and then combining the mass data measured by the load cells 500 and the pre-stored data using the data processing module, one or more of the current remaining salt amount, remaining water production amount, and remaining regeneration times of the split-type water softener 100 can be calculated in real time. In a preferred embodiment, the control board 400 is configured to use the average value calculated based on the multiple masses measured by the plurality of load cells 500 as the final mass of the salt tank 300. The display board 700 is used to display one or more of the remaining salt amount, remaining water production amount, and remaining regeneration times.

[0098] The processes for obtaining the remaining salt amount, remaining water production amount, and remaining regeneration times of the split-type water softener 100 in several specific situations will be discussed in detail exemplarily below.

[0099] Without considering the influence of temperature, when the split-type water softener 100 is used for the first time, the water softener 100 is turned on. The inlet hardness Y of the water to be treated is measured by the hardness detection device 800, or the inlet hardness Y of the water to be treated can also be measured by the installation engineer of the water softener 100. The load cell 500 detects that the mass of the salt tank 300 when it is empty is m 1 . Then the water softener 100 starts to produce water. After the operation is stable, the salt tank 300 is replenished with water until the water surface reaches the set standard liquid level, and the load cell 500 detects that the mass of the salt tank 300 at this time is m 2 . After that, the user adds salt to the salt tank 300, and the load cell 500 detects that the mass of the salt tank 300 after adding salt is m 3。The weighing sensor 500 transmits the result to the data processing module of the control board 400. The data processing module queries and extracts from the storage module the rated water production f(Y) per liter of the ion exchange resin 210 when the inlet water hardness is Y, the salt consumption m for a single regeneration of per liter of the ion exchange resin 210, z and the resin volume V of the ion exchange resin 210. 树 Based on these data, the remaining salt amount m, the remaining water production volume V, and the remaining regeneration times n can be calculated respectively. Specifically:

[0100] The remaining salt amount m is calculated according to the following formula:

[0101] m = m 3 - m 2 ,

[0102] The remaining water production volume V is calculated according to the following formula:

[0103]

[0104] The remaining regeneration times n are calculated according to the following formula:

[0105]

[0106] And when the result of this formula is not an integer, n takes the quotient of this formula.

[0107] In some preferred embodiments, the control board 400 of the split-type water softener 100 further includes: a reminder module, which is configured to send a salt addition signal when one and / or more of the following conditions are met:

[0108] The remaining salt amount m is less than or equal to a preset remaining salt amount threshold;

[0109] The remaining water production volume V is less than or equal to a preset remaining water production volume threshold;

[0110] The remaining regeneration times n are less than or equal to a preset remaining regeneration times threshold.

[0111] The specific values of the preset remaining salt amount threshold, the preset remaining water production volume threshold, and the preset remaining regeneration times threshold can be determined according to the statistical results of experimental data. At the same time, the display board 700 can be further configured to display the salt addition signal. When the split-type water softener 100 of the embodiment of the present invention is in use, the user can simply and immediately view the current remaining salt amount, remaining water production volume, remaining regeneration times, and salt addition signal of the water softener 100. Based on this information, the user can add salt in time to ensure the water quality and meet the needs of people in aspects such as bathing and cleaning.

[0112] Without considering the influence of temperature, when the split-type water softener 100 is on standby or making water, the user adds salt to the salt tank 300. The hardness detection device 800 measures the incoming water hardness Y' at this time, or since the hardness of the water source is relatively stable, the incoming water hardness Y can be directly used as the incoming water hardness Y'. The weighing sensor 500 detects that the mass of the salt tank 300 at this time is m 4 . The weighing sensor 500 transmits the result to the data processing module of the control board 400, and the data processing module queries and extracts from the storage module the rated water production f(Y') per liter of the ion exchange resin 210, the salt consumption m per liter of the ion exchange resin 210 for a single regeneration when the incoming water hardness is Y' z , as well as the resin volume V of the ion exchange resin 210 树 . Based on these data, the remaining salt amount m', the remaining water production volume V', and the remaining regeneration times n' are calculated respectively. Specifically:

[0113] The remaining salt amount m' is calculated according to the following formula:

[0114] m′ = m 4 - m 2 ,

[0115] The remaining water production volume V' is calculated according to the following formula:

[0116]

[0117] Or

[0118]

[0119] The remaining regeneration times n' are calculated according to the following formula:

[0120]

[0121] And when the result of this formula is not an integer, n' takes the quotient of this formula

[0122] Without considering the influence of temperature, when the split-type water softener 100 is regenerated, the user adds salt to the salt tank 300. The hardness detection device 800 measures the incoming water hardness Y'' at this time, or since the hardness of the water source is relatively stable, the incoming water hardness Y can be directly used as the incoming water hardness Y''. After the split-type water softener 100 is regenerated, and after the split-type water softener 100 makes water for a period of time (for example, after making water for 5 minutes), the weighing sensor 500 detects that the mass of the salt tank 300 at this time is m 5 . The weighing sensor 500 transmits the result to the data processing module of the control board 400, and the data processing module queries and extracts from the storage module the rated water production f(Y'') per liter of the ion exchange resin 210, the salt consumption m per liter of the ion exchange resin 210 for a single regeneration when the incoming water hardness is Y''z and the resin volume V of the ion exchange resin 210 树 . Based on these data, the remaining salt amount m″, the remaining water production volume V″, and the remaining regeneration times n″ are calculated respectively. Specifically:

[0123] The remaining salt amount m″ is calculated according to the following formula:

[0124] m″ = m 5 - m 2 ,

[0125] The remaining water production volume V″ is calculated according to the following formula:

[0126]

[0127] Or

[0128]

[0129] The remaining regeneration times n″ are calculated according to the following formula:

[0130]

[0131] where, when the result of this formula is not an integer, n″ takes the quotient of this formula.

[0132] When considering the influence of temperature, when the split - type water softener 100 is used for the first time, the water softener 100 is turned on. The inlet water hardness Y of the water to be treated is measured by the hardness detection device 800, or measured by the installation engineer of the water softener 100. The weighing sensor 500 detects that the mass of the salt tank 300 when it is empty is m 1 . Then the water softener 100 starts to produce water. After the operation is stable, water is replenished into the salt tank 300 until the water surface reaches the set standard liquid level. The weighing sensor 500 detects that the mass of the salt tank 300 at this time is m 2 . After that, the user adds salt to the salt tank 300, and the weighing sensor 500 detects that the mass of the salt tank 300 after adding salt is m 3 . At the same time, the temperature sensor 600 detects that the temperature of the salt water after adding salt is t. The water volume detection device 900 measures the volume of the salt water at this time as V 水 (i.e., the actual water filling volume of the water softener 100 at the standard liquid level). The weighing sensor 500 transmits the result to the data processing module of the control board 400. The data processing module queries and extracts from the storage module the rated water production volume f(Y) per liter of the ion exchange resin 210 when the inlet water hardness is Y, the salt consumption m z (t) per single regeneration of per liter of the ion exchange resin 210 corresponding to the salt water temperature t, the water density ρ(t) corresponding to the salt water temperature t, and the resin volume V of the ion exchange resin 210 树. Based on these data, the remaining salt quantity m, the remaining water production volume V, and the remaining regeneration times n are calculated respectively. Specifically:

[0133] The remaining salt quantity m is calculated according to the following formula:

[0134] m = m 3 - m 2 ,

[0135] where m 2 can also be expressed by the following formula:

[0136] m 2 = m 1 + ρ(t) + V 水 ,

[0137] At this time, m is:

[0138] m = m 3 - m 1 - ρ(t) × V 水 ;

[0139] The remaining water production volume V is calculated according to the following formula:

[0140]

[0141] The remaining regeneration times n are calculated according to the following formula:

[0142]

[0143] And when the result of this formula is not an integer, n takes the quotient of this formula.

[0144] When considering the influence of temperature, when the split-type water softener 100 is on standby or producing water, the user adds salt to the salt tank 300. The hardness detection device 800 measures the incoming water hardness Y' at this time. Or, since the hardness of the water source is relatively stable, the incoming water hardness Y can be directly used as the incoming water hardness Y'. The weighing sensor 500 detects that the mass of the salt tank 300 at this time is m 4 . The temperature sensor 600 records the water temperature at this time as t'. The water volume detection device 900 measures the volume of the brine at this time as V' 水 . The weighing sensor 500 transmits the result to the data processing module of the control board 400. The data processing module queries and extracts from the storage module the rated water production volume f(Y') per liter of ion exchange resin 210 when the incoming water hardness is Y', the salt consumption m z (t') per liter of ion exchange resin 210 for a single regeneration corresponding to the brine temperature t', the water density ρ(t') corresponding to the brine temperature t', and the resin volume V of the ion exchange resin 210 树. Based on these data, the remaining salt quantity m', the remaining water production volume V', and the remaining regeneration times n' are calculated respectively. Specifically:

[0145] The remaining salt quantity m' is calculated according to the following formula:

[0146] m′ = m 4 - m 1 - ρ(t′) × V′ 水 ,

[0147] The remaining water production volume V' is calculated according to the following formula:

[0148]

[0149] Or

[0150]

[0151] The remaining regeneration times n' are calculated according to the following formula:

[0152]

[0153] Wherein, when the result of this formula is not an integer, n' takes the quotient of this formula.

[0154] When considering the influence of temperature, when the split-type water softener 100 is regenerated, the user adds salt to the salt tank 300. The inlet water hardness Y" is measured by the hardness detection device 800 at this time, or since the hardness of the water source is relatively stable, the inlet water hardness Y can be directly used as the inlet water hardness Y". After the split-type water softener 100 is regenerated, and after the split-type water softener 100 has produced water for a period of time (for example, after producing water for 5 minutes), the weighing sensor 500 detects that the mass of the salt tank 300 at this time is m 5 . The temperature sensor 600 records the water temperature at this time as t". The water volume detection device 900 measures the volume of the brine at this time as V" 水 . The weighing sensor 500 transmits the result to the data processing module of the control board 400. The data processing module queries and extracts from the storage module the rated water production volume f(Y") per liter of ion exchange resin 210 when the inlet water hardness is Y", the salt consumption m z (t") per liter of ion exchange resin 210 for a single regeneration corresponding to the brine temperature t", the water density ρ(t") corresponding to the brine temperature t", and the resin volume V of the ion exchange resin 210 树 . Based on these data, the remaining salt quantity m", the remaining water production volume V", and the remaining regeneration times n" are calculated respectively. Specifically:

[0155] The remaining salt quantity m" is calculated according to the following formula:

[0156] m″ = m 5 - m1 -ρ(t″) × V″ 水 ,

[0157] The remaining water production volume V″ is calculated according to the following formula:

[0158]

[0159] Or

[0160]

[0161] The remaining regeneration times n″ are calculated according to the following formula:

[0162]

[0163] When the result of this formula is not an integer, n″ takes the quotient of this formula.

[0164] As Figure 2 shown, it is a schematic structural diagram of the split-type water softener 100 according to another embodiment of the present invention. The split-type water softener 100 includes a resin filter tank 200, a salt tank 300, a plurality of weighing sensors 500, a temperature sensor 600, a connection line 601, a control board 400, and a display board 700. The resin filter tank 200 is provided with a water inlet, a water outlet, and a sewage outlet at its top, a brine port on its side wall, and ion exchange resin 210 inside it. The salt tank 300 includes an outer shell 301 and an inner shell 302, and salt is placed inside the inner shell 302. The plurality of weighing sensors 500 are evenly spaced on the top of the inner shell 302 of the salt tank 300. The temperature sensor 600 is arranged inside the inner shell 302 of the salt tank 300. One end of the connection line 601 is fixed to the top of the inner shell 302 of the salt tank 300, and the other end is provided with the temperature sensor 600. The control board 400 is arranged inside the resin filter tank 200. The display board 700 is arranged on the outer side surface of the resin filter tank 200.

[0165] As Figure 3As shown, it is a schematic structural diagram of a split-type water softener 100 according to another embodiment of the present invention. The split-type water softener 100 includes a housing 101, a resin filter tank 200, a salt tank 300, a plurality of weighing sensors 500, a temperature sensor 600, a connection line 601, a control board 400, and a display board 700. The resin filter tank 200 and the salt tank 300 are arranged at intervals inside the housing 101 of the water softener 100. The resin filter tank 200 is provided with a water inlet, a water outlet, and a sewage outlet at its top, a brine port on its side wall, and ion exchange resin 210 inside it. Salt is placed inside the salt tank 300. The plurality of weighing sensors 500 are evenly arranged at intervals between the housing 101 of the water softener 100 and the salt tank 300. The temperature sensor 600 is arranged inside the salt tank 300. One end of the connection line 601 is fixed to the top of the salt tank 300, and the other end is provided with the temperature sensor 600. The control board 400 is arranged inside the housing 101 of the water softener 100. The display board 700 is arranged on the outer side surface of the housing 101 of the water softener 100.

[0166] In some other embodiments, the water softener 100 in the embodiments of the present invention is an integrated water softener 100. In the present invention, the split-type water softener 100 refers to a water softener in which the resin filter tank 200 is not directly in contact with the brine, and the weighing sensor 500 measures only the mass of the salt tank 300; the integrated water softener 100 refers to a water softener in which the resin filter tank 200 is directly in contact with the brine, and the weighing sensor 500 measures the total mass of the salt tank 300 and the resin filter tank 200.

[0167] Figure 4Schematic structural diagram of an integrated water softener 100 according to an embodiment of the present invention. The integrated water softener 100 includes a resin filter tank 200, a salt tank 300, a plurality of weighing sensors 500, a temperature sensor 600, a connection line 601, a hardness detection device 800, a water volume detection device 900, a control board 400, and a display board 700. The salt tank 300 has an outer shell 301 and an inner shell 302, and salt is placed inside the inner shell 302. The resin filter tank 200 is disposed inside the inner shell 302 of the salt tank 300. The resin filter tank 200 is provided with a water inlet, a water outlet, and a sewage outlet at its top, a brine port on its side wall, and ion exchange resin 210 inside. The plurality of weighing sensors 500 are evenly spaced between the outer shell 301 and the inner shell 302 of the salt tank 300. The temperature sensor 600 is disposed inside the inner shell 302 of the salt tank 300. One end of the connection line 601 is fixed to the top of the inner shell 302 of the salt tank 300, and the other end is provided with the temperature sensor 600. The control board 400 is disposed inside the outer shell 301 of the salt tank 300. The display board 700 is disposed on the outer side surface of the outer shell 301 of the salt tank 300. The control board 400 and the display board 700 of the integrated water softener 100 are similar to those of the aforementioned split water softener 100, except that the weighing sensor 500 always measures the total mass of the salt tank 300 and the resin filter tank 200. Taking the first use of the integrated water softener 100 without considering the influence of temperature as an example, the obtaining process of the remaining salt amount m, the remaining water production volume V, and the remaining regeneration times n of the integrated water softener 100 will be described, and the obtaining processes of the remaining salt amount, the remaining water production volume, and the remaining regeneration times of the integrated water softener 100 in other situations will not be elaborated.

[0168] Without considering the influence of temperature, when the integrated water softener 100 is first used, turn on the water softener 100. The hardness detection device 800 measures the inlet hardness Y of the water to be treated, or it is measured by the installation engineer of the water softener 100. The weighing sensor 500 detects that the total mass of the salt tank 300 and the resin filter tank 200 when there is no water is m' 1 . Then the water softener 100 starts to produce water. After the operation is stable, replenish water into the salt tank 300 until the water surface reaches the set standard liquid level, and the weighing sensor 500 detects that the total mass of the salt tank 300 and the resin filter tank 200 at this time is m' 2 . After that, the user adds salt to the salt tank 300, and the weighing sensor 500 detects that the total mass of the salt tank 300 and the resin filter tank 200 after adding salt is m' 3 . The weighing sensor 500 transmits the result to the data processing module of the control board 400, and the data processing module queries and extracts from the storage module the rated water production volume f(Y) per liter of the ion exchange resin 210 when the inlet hardness is Y, the salt consumption m per liter of the ion exchange resin 210 for a single regeneration z , and the resin volume V of the ion exchange resin 210树 Based on these data, the remaining salt quantity m, the remaining water production volume V, and the remaining regeneration times n are calculated respectively, specifically:

[0169] The remaining salt quantity m is calculated according to the following formula:

[0170] m = m′ 3 - m′ 2 ,

[0171] The remaining water production volume V is calculated according to the following formula:

[0172]

[0173] The remaining regeneration times n are calculated according to the following formula:

[0174]

[0175] And when the result of this formula is not an integer, n takes the quotient of this formula.

[0176] In some preferred embodiments, the control board 400 of the integrated water softener 100 further includes: a reminder module, which is configured to send a salt addition signal when one and / or more of the following conditions are met:

[0177] The remaining salt quantity m is less than or equal to a preset remaining salt quantity threshold;

[0178] The remaining water production volume V is less than or equal to a preset remaining water production volume threshold;

[0179] The remaining regeneration times n are less than or equal to a preset remaining regeneration times threshold.

[0180] The specific values of the preset remaining salt quantity threshold, the preset remaining water production volume threshold, and the preset remaining regeneration times threshold can be determined according to the statistical results of experimental data. Meanwhile, the display board 700 can be further configured to display this salt addition signal. When the integrated water softener 100 of the embodiment of the present invention is in use, the user can simply and instantaneously view the current remaining salt quantity, remaining water production volume, remaining regeneration times, and salt addition signal of the water softener 100. Based on this information, the user can add salt in a timely manner to ensure the water quality and meet the needs of people in aspects such as bathing and cleaning.

[0181] So far, those skilled in the art should recognize that although multiple exemplary embodiments of the present invention have been shown and described in detail herein, still, without departing from the spirit and scope of the present invention, many other variations or modifications that conform to the principles of the present invention can be directly determined or derived based on the content disclosed in the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A water softener, characterized in that it includes: A resin filter tank, having a water inlet, a water outlet and a brine outlet, with ion exchange resin disposed inside. The water to be treated enters the resin filter tank from the water inlet, is treated by the ion exchange resin, and then is discharged from the water outlet of the resin filter tank; A salt tank, in which salt is placed, and at least part of the salt is dissolved in water to form brine. The brine flows into the resin filter tank through the brine outlet to regenerate the ion exchange resin; and One or more weighing sensors, disposed at the top and / or bottom of the salt tank, for detecting the mass of the salt tank or the salt tank and the resin filter tank.

2. The water softener according to claim 1, characterized in that The water softener is a split-type water softener, and the resin filter tank and the salt tank are separately arranged; The weighing sensor is configured to: detect the mass of the salt tank in real time to obtain a real-time mass m 测 .

3. The water softener according to claim 2, characterized in that The weighing sensor is further configured to: detect the mass of the salt tank when the water level of the brine is at the standard liquid level, and obtain the standard liquid level mass m 标 ; The split-type water softener further includes: A first control board, which includes a first storage module and a first data processing module; wherein The first storage module is configured to store the rated water production per liter of the ion exchange resin f(Y), the salt consumption per liter of the ion exchange resin during a single regeneration m z , and the resin volume V of the ion exchange resin 树 ; The first data processing module is configured to calculate one or more of the remaining salt quantity m, the remaining water production volume V, and the remaining regeneration times n, where: The remaining salt quantity m is calculated according to the following formula: m = m 测 -m 标 , The remaining water production volume V is calculated according to the following formula: The remaining regeneration times n is calculated according to the following formula: and A display board, configured to display one or more of the remaining salt quantity m, the remaining water production volume V, and the remaining regeneration times n.

4. The water softener according to claim 3, characterized in that The first control board further includes: a reminder module, and the reminder module is configured to send a salt addition signal when one and / or more of the following conditions are met: The remaining salt quantity m is less than or equal to a preset remaining salt quantity threshold; The remaining water production volume V is less than or equal to a preset remaining water production volume threshold; The remaining regeneration times n is less than or equal to a preset remaining regeneration times threshold.

5. The water softener according to claim 3, characterized in that The split-type water softener further includes: A hardness detection device is used to detect the real-time inlet water hardness of the water to be treated and obtain the inlet water hardness Y 实 ; The first storage module also stores: the rated water production per liter of the ion exchange resin corresponding to the inlet hardness value range of the water to be treated f(Y 实 ); The first data processing module is further configured to: obtain the inlet water hardness Y 实 , and determine its corresponding rated water production f(Y 实 ); The remaining water production volume V is calculated according to the following formula:

6. The water softener according to claim 2, characterized in that The weighing sensor is further configured to: detect the mass when the salt tank does not contain the salt and the brine, and obtain the empty tank mass m 箱 ; The split-type water softener further includes: A temperature sensor, for detecting the temperature of the brine in real time to obtain the brine temperature t; A water volume detection device is used to detect the volume of the brine in real time to obtain the brine volume V 水 ; A second control board, which includes a second storage module and a second data processing module, wherein The second storage module stores: the rated water production amount f(Y) per liter of the ion exchange resin, the salt consumption amount m(t) per liter of the ion exchange resin during a single regeneration corresponding to the brine temperature value range, the water density ρ(t) corresponding to the brine temperature value range, and the resin volume V of the ion exchange resin z (t), the water density ρ(t) corresponding to the brine temperature value range, and the resin volume V of the ion exchange resin 树 ; The second data processing module is configured to calculate one or more of the remaining salt quantity m, the remaining water production volume V, and the remaining regeneration times n, where: The remaining salt quantity m is calculated according to the following formula: m = m 测 -m 箱 -ρ(t) × V 水 , The remaining water production volume V is calculated according to the following formula: The remaining regeneration times n is calculated according to the following formula: and A display board, configured to display one or more of the remaining salt quantity m, the remaining water production volume V, and the remaining regeneration times n.

7. The water softener according to claim 1, characterized in that The water softener is an integrated water softener, and the resin filter tank is disposed inside the salt tank; The weighing sensor is configured to: detect the total mass of the resin filter tank and the salt tank in real time, and obtain a real-time mass m'. 测 .

8. The water softener according to claim 7, characterized in that The weighing sensor is further configured to: detect the total mass of the resin filter tank and the salt tank when the water level of the brine is at the standard liquid level, and obtain the standard liquid level mass m' 标 ; The integrated water softener further includes: The third control board, which includes a third storage module and a third data processing module; wherein the third storage module is configured to store the rated water production f(Y) per liter of the ion exchange resin, the salt consumption m during a single regeneration of per liter of the ion exchange resin z , and the resin volume V of the ion exchange resin 树 ; The third data processing module is configured to calculate one or more of the remaining salt amount m, the remaining water production volume V, and the remaining regeneration times n, where: The remaining salt amount m is calculated according to the following formula: m = m' 测 -m' 标 , The remaining water production volume V is calculated according to the following formula: The remaining regeneration times n is calculated according to the following formula: and A display board, configured to display one or more of the remaining salt amount m, the remaining water production volume V, and the remaining regeneration times n.

9. The water softener according to claim 8, wherein, The third control board further includes: a reminder module, the reminder module is configured to send a salt addition signal when one and / or more of the following conditions are met: The remaining salt amount m is less than or equal to a preset remaining salt amount threshold; The remaining water production volume V is less than or equal to a preset remaining water production volume threshold; The remaining regeneration times n is less than or equal to a preset remaining regeneration times threshold.

10. The water softener according to claim 8, wherein, The integrated water softener further includes: A hardness detection device is used to detect the real-time inlet water hardness of the water to be treated and obtain the inlet water hardness Y 实 ; The third storage module also stores: the rated water production per liter of the ion exchange resin corresponding to the range of the inlet water hardness value of the water to be treated f(Y 实 ); The third data processing module is further configured to: obtain the inlet water hardness Y 实 , and determine its corresponding rated water production f(Y 实 ); The remaining water production volume V is calculated according to the following formula:

11. The water softener according to claim 7, wherein, The weighing sensor is further configured to: detect the total mass when the salt tank does not contain the salt and the brine, and obtain the empty tank mass m' 箱 ; The integrated water softener further includes: A temperature sensor, configured to detect the temperature of the brine in real time to obtain the brine temperature t; A water volume detection device is used to detect the volume of the brine in real time to obtain the brine volume V 水 ; A fourth control board, which includes a fourth storage module and a fourth data processing module, where The fourth storage module stores: the rated water production per liter of the ion exchange resin f(Y), the salt consumption m(t) per liter of the ion exchange resin during a single regeneration corresponding to the brine temperature value range, the water density ρ(t) corresponding to the brine temperature value range, and the resin volume V of the ion exchange resin z (t), the water density ρ(t) corresponding to the brine temperature value range, and the resin volume V of the ion exchange resin 树 ; The fourth data processing module is configured to calculate one or more of the remaining salt amount m, the remaining water production volume V, and the remaining regeneration times n, where: The remaining salt amount m is calculated according to the following formula: m = m' 测 -m' 箱 -ρ(t) × V 水 , The remaining water production volume V is calculated according to the following formula: The remaining regeneration times n is calculated according to the following formula: and A display board, configured to display one or more of the remaining salt amount m, the remaining water production volume V, and the remaining regeneration times n.

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