CN111348724A - Control method of pressure regulating pump of water purifier and water purifier - Google Patents
Control method of pressure regulating pump of water purifier and water purifier Download PDFInfo
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- CN111348724A CN111348724A CN201811568305.7A CN201811568305A CN111348724A CN 111348724 A CN111348724 A CN 111348724A CN 201811568305 A CN201811568305 A CN 201811568305A CN 111348724 A CN111348724 A CN 111348724A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
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Abstract
The invention discloses a control method of a pressure regulating pump of a water purifier and the water purifier, which comprises the following steps: after the water purifier starts to produce water, acquiring a raw water TDS value, a raw water temperature value and an original voltage value of a pressure regulating pump at the upstream of the pressure regulating pump; the water purifier acquires the actual pure water amount currently generated by the water purifier, and when the actual pure water amount reaches the preset pure water amount, the water purifier calculates the theoretical voltage value of the pressure regulating pump to be regulated according to the raw water TDS value, the raw water temperature value, the original voltage value of the pressure regulating pump and the actual pure water amount generated by the water purifier, and regulates the original voltage value of the pressure regulating pump to the theoretical voltage value, so that the raw water subjected to the water pressure regulation by the pressure regulating pump has a proper water pressure value. The invention self-adaptively adjusts the voltage value of the pressure regulating pump according to parameters such as water quality conditions, water temperature and the like in different areas, reduces the noise of the water purifier and prolongs the service life of a reverse osmosis membrane unit in the water purifier.
Description
Technical Field
The invention belongs to the field of water purifiers, and particularly relates to a control method of a pressure regulating pump of a water purifier and the water purifier.
Background
Most reverse osmosis membrane water purifiers use direct current pressure regulating pump, increase reverse osmosis membrane's the preceding water pressure of membrane, make hydroenergy pass through reverse osmosis membrane smoothly to carry out water filtration. However, because the water quality in each region is different, under the condition of using constant pump voltage, the pressure in front of the reverse osmosis membrane is overlarge in the region with better water quality, noise is caused, and the service life of the reverse osmosis membrane is shortened. The water pipe blasting, the reverse osmosis membrane life reduction risk that can lead to under the low raw water of temperature, the too high condition of pressure.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a control method of a pressure regulating pump of a water purifier and the water purifier. Meanwhile, the control method can only adjust the pressure of the pump according to the water quality conditions and the water temperature conditions of different areas, thereby achieving the purposes of reducing the noise and the power consumption of the whole water purifier and prolonging the service life of the reverse osmosis membrane.
In order to solve the technical problems, the invention adopts the technical scheme that:
a control method of a pressure regulating pump of a water purifier comprises the following steps:
after the water purifier starts to produce water, acquiring a raw water TDS value, a raw water temperature value and an original voltage value of a pressure regulating pump at the upstream of the pressure regulating pump;
the water purifier acquires the actual pure water amount currently generated by the water purifier, and when the actual pure water amount reaches the preset pure water amount, the water purifier calculates the theoretical voltage value of the pressure regulating pump to be regulated according to the raw water TDS value, the raw water temperature value, the original voltage value of the pressure regulating pump and the actual pure water amount generated by the water purifier, and regulates the original voltage value of the pressure regulating pump to the theoretical voltage value, so that the raw water subjected to the water pressure regulation by the pressure regulating pump has a proper water pressure value.
Further, after the water purifier starts to produce water, the pressure regulating pump works according to the original voltage value, and when the actual pure water quantity produced by the water purifier reaches the preset pure water quantity, the water purifier regulates the original voltage value of the pressure regulating pump into a theoretical voltage value;
preferably, when the water purifier detects that the actual pure water amount generated by the water purifier reaches the preset pure water amount, the water purifier stops water production; and after the water purifier adjusts the original voltage value of the pressure regulating pump to the theoretical voltage value, the water purifier restarts to produce water, and the pressure regulating pump operates at the theoretical voltage value.
Further, the water purifier obtains the theoretical voltage value that the pressure regulating pump needs to adjust according to the original voltage value of pressure regulating pump:
v — V0 × a, where V0 is the original voltage value and a is the voltage correction factor.
Further, the voltage correction coefficient is calculated by the following formula:
and A is X + T + L, wherein X is a voltage correction reference value, T is a first voltage correction value, and L is a second voltage correction value.
Furthermore, a plurality of different TDS range sections are preset in the water purifier, each TDS range section corresponds to a different voltage correction reference value, and the voltage correction reference value is preset in the water purifier; wherein the first TDS range is TDS <200mg/L, and the corresponding voltage correction reference value is 60%; the second TDS range interval is not less than 200mg/L and less than 300mg/L, and the corresponding voltage correction reference value is 70%; the third TDS range is more than or equal to 300mg/L and less than 400mg/L, and the corresponding voltage correction reference value is 80 percent; the fourth TDS range interval is not less than 400mg/L and less than 500mg/L of TDS, and the corresponding voltage correction reference value is 90 percent; the fifth TDS range is that TDS is more than or equal to 500mg/L, and the corresponding voltage correction reference value is 100%; after the water purifier starts to produce water, the TDS range section to which the water purifier belongs is determined according to the detected TDS value of the raw water, and the corresponding voltage correction reference value is acquired.
Further, after the water purifier starts to produce water, a first voltage correction value is obtained according to the detected water temperature of the raw water:
t ═ [ (T0-25)/100] × 100%, wherein T0 is the water temperature value.
Further, when the actual amount of pure water generated by the water purifier reaches the preset amount of pure water, obtaining a second voltage correction value according to the actual amount of pure water:
l ═ [ (7000-L0)/1050] × 100%, where L0 is the amount of pure water.
The invention also aims to provide a water purifier with any one of the control methods, which comprises a water purifying water pipe for water flow, wherein the water purifying water pipe is sequentially provided with the following components in the water flow direction:
the temperature detection unit is used for detecting the water temperature value of the raw water;
the TDS detection unit is used for detecting a TDS value of raw water;
the pressure regulating pump is used for regulating the water pressure of raw water;
the reverse osmosis membrane unit is used for filtering the raw water after pressure regulation;
and the flow detection unit is used for acquiring the actual pure water amount generated by the water purifier.
Further, the water purifier comprises a voltage adjusting module, and the voltage adjusting module is electrically connected with the pressure regulating pump so as to adjust the voltage value of the pressure regulating pump.
The water purifier comprises a temperature detection unit, a TDS detection unit, a pressure regulating pump, a reverse osmosis detection unit and a flow detection unit, wherein the temperature detection unit, the TDS detection unit, the pressure regulating pump, the reverse osmosis detection unit and the flow detection unit are arranged on the water purifier; the control unit is also used for calculating a theoretical voltage value of the voltage regulating pump to be regulated and controlling the voltage regulation module to regulate the original voltage value of the voltage regulating pump to the theoretical voltage value.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. According to the invention, the water purifier can adjust the voltage of the pump, so that raw water has proper water pressure before entering the reverse osmosis membrane unit, and the effects of reducing the noise and the power consumption of the whole machine are achieved.
2. According to the water purifier, the voltage of the pressure regulating pump can be regulated according to the water quality conditions and the water temperature conditions of different areas, so that the water pressure in front of the reverse osmosis membrane can be regulated, the reverse osmosis membrane can smoothly filter raw water, and the service life of the reverse osmosis membrane is prolonged.
3. According to the invention, the water purifier can adapt to water quality in different areas, the water pressure in front of the reverse osmosis membrane unit is adjusted in a self-adaptive manner, and the phenomenon that the pressure in the machine is too high and the machine explodes due to too high pressure in front of the membrane is avoided.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of a water purification process of a water purifier according to the present invention;
FIG. 2 is a flow chart illustrating a method of self-regulating water pressure in a water purifier according to an embodiment of the present invention.
In the figure: 1-a water purification pipe; 2-a water inlet; 3-water outlet; 4-a first filtration unit; 5-water inlet electromagnetic valve; 6-a temperature detection unit; 7-TDS detection unit; 8-a pressure regulating pump; 9-a reverse osmosis membrane unit; 10-a flow detection unit; 11-a second filtration unit; 12-thick water pipe.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 2, the present invention provides a method for controlling a pressure regulating pump of a water purifier and the water purifier, wherein the water purifier comprises a purified water pipe 1 for flowing water, and a temperature detecting unit 6, a TDS detecting unit 7, a pressure regulating pump 8, a reverse osmosis membrane unit 9 and a flow detecting unit 10 are sequentially arranged on the purified water pipe 1 along a water flow direction. The water purification water pipe 1 comprises a water inlet 2 and a water outlet 3, an external water source is communicated with the water inlet 2 of the water purification water pipe 1 to supply water for the water purifier, after the water purifier starts to produce water, raw water provided by the external water source enters the water purification water pipe 1 through the water inlet 2, the voltage of the pressure regulating pump 8 is an original voltage value, the pressure regulating pump 8 works with the original voltage value, the raw water entering the pressure regulating pump 8 is subjected to pressure regulation, the water pressure of the raw water is changed, and the raw water can smoothly pass through the reverse osmosis membrane unit 9. In water purifier system water in-process, temperature detecting element 6 in the water purifier acquires the raw water temperature value, TDS detecting element 7 detects the TDS value in the raw water, flow detecting element 10 acquires the actual pure water volume that the water purifier was prepared, the control unit of water purifier calculates the theoretical voltage value that pressure regulating pump 8 needs to reach according to raw water temperature value, TDS value and actual pure water volume to adjust the original voltage value of pressure regulating pump 8 to theoretical voltage value, make pressure regulating pump 8 work with theoretical voltage value. When the water purifier is used in different regions, due to the difference of the water quality or the water temperature of raw water in the regions, when the pressure regulating pump 8 of the water purifier works at a constant voltage, the conditions that the pressure in front of the reverse osmosis membrane unit 9 is overlarge, the noise is large, the service life of the reverse osmosis membrane unit 9 is shortened and the risk of explosion of the water purifying water pipe 1 of the water purifier even occurs in severe cases; by adopting the control method of the pressure regulating pump 8, the working pressure of the pressure regulating pump 8 can be adaptively adjusted by the water purifier according to the water temperature values and the water quality conditions of different regions, so that the water purifier can adapt to the use of different regions by changing the working voltage of the pressure regulating pump 8, the application range of the water purifier is expanded, the use noise of the water purifier is reduced, and the service life of a reverse osmosis membrane unit 9 in the water purifier is prolonged.
Example one
As shown in fig. 1, in the present embodiment, a method for controlling a pressure regulating pump of a water purifier is provided, the method comprising the following steps, step 1: after the water purifier starts to produce water, acquiring a raw water TDS value and a raw water temperature value at the upstream of the pressure regulating pump 8 and an original voltage value of the pressure regulating pump 8; step 2: the water purifier acquires the actual pure water amount currently generated by the water purifier, and when the actual pure water amount reaches the preset pure water amount, the water purifier calculates the theoretical voltage value of the pressure regulating pump 8 to be adjusted according to the raw water TDS value, the raw water temperature value, the original voltage value of the pressure regulating pump 8 and the actual pure water amount generated by the water purifier, and adjusts the original voltage value of the pressure regulating pump 8 to the theoretical voltage value, so that the raw water of which the water pressure is adjusted by the pressure regulating pump 8 has a proper water pressure value.
In this embodiment, after the water purifier starts to produce water, the pressure regulating pump 8 operates at the original voltage value, and when the actual amount of pure water produced by the water purifier reaches the preset amount of pure water, the water purifier adjusts the original voltage value of the pressure regulating pump 8 to the theoretical voltage value. When the water purifier detects that the actual pure water amount generated by the water purifier reaches the preset pure water amount, stopping water production by the water purifier; when the water purifier adjusts the original voltage value of the pressure regulating pump 8 to the theoretical voltage value, the water purifier restarts to produce water, and the pressure regulating pump operates at the theoretical voltage value; or, the water purifier can adjust the voltage value of the pressure regulating pump 8 without stopping, so that the voltage value of the pressure regulating pump 8 is adjusted to be the theoretical voltage value, and the water purifier works with the theoretical voltage value.
In this embodiment, in step 1, after the water purifier starts to produce water, the TDS detection unit 7 detects the raw water to obtain a TDS value of the raw water, where the TDS value is a total solid content dissolved in the raw water, a plurality of TDS range sections are preset in the water purifier, each TDS range section corresponds to a different voltage correction reference value, and the voltage correction reference value is denoted as X and is preset in the water purifier; wherein the first TDS range is TDS <200mg/L, and the corresponding reference value is 60%; the second TDS range interval is not less than 200mg/L and less than 300mg/L, and the corresponding reference value is 70 percent; the third TDS range interval is not less than 300mg/L and less than 400mg/L of TDS, and the corresponding reference value is 80 percent; the fourth TDS range interval is not less than 400mg/L and less than 500mg/L of TDS, and the corresponding reference value is 90 percent; the fifth TDS range is that TDS is more than or equal to 500mg/L, and the corresponding reference value is 100 percent. After the TDS detection unit 7 acquires the TDS value of the raw water, the water purifier determines a TDS range section to which the TDS value of the raw water detected by the TDS detection unit 7 belongs, acquires a corresponding voltage correction reference value, and records the corresponding voltage correction reference value in the water purifier.
In this embodiment, in step 1, after the water purifier starts to produce water, the temperature detection unit 6 in the water purifier detects the water temperature value of raw water, the water purifier calculates a first voltage correction value according to the water temperature value of raw water, a relation between the first voltage correction value and the water temperature value of raw water is as follows, and the relation between the first voltage correction value and the water temperature value of raw water is preset in the water purifier:
t is [ (T0-25)/100] × 100%, wherein T is a first voltage correction value, and T0 is a raw water temperature value.
In this embodiment, in step 2, after the water purifier starts to produce water, a preset pure water amount is set in the water purifier, and when the water purifier detects that the actual pure water amount produced by the water purifier reaches the preset pure water amount, the water purifier calculates a second voltage correction value according to the actual pure water amount produced by the water purifier, where a relation between the second voltage correction value and the actual pure water amount is preset in the water purifier:
and L is [ (7000-L0)/1050] × 100% and is a second voltage correction value, and L0 is the actual pure water amount.
In this embodiment, in step 2, after the water purifier obtains the voltage correction reference value, the first voltage correction value, and the second voltage correction value, the voltage correction reference value, the first voltage correction value, and the second voltage correction value are summed to calculate a voltage correction coefficient, and the voltage correction coefficient is calculated by the following formula; the relation between the voltage correction coefficient and the voltage correction reference value, the first voltage correction value and the second voltage correction value is preset in the water purifier:
a ═ X + T + L; wherein A is a voltage correction coefficient.
In this embodiment, in step 2, the water purifier calculates a theoretical voltage value that the pressure regulating pump 8 needs to reach according to the voltage correction coefficient and an original voltage value of the pressure regulating pump 8, where the theoretical voltage value is calculated by the following formula, and a relation between the theoretical voltage value and the original voltage value is preset in the water purifier:
and V is V0 × A, wherein V is a theoretical voltage value, and V0 is an original voltage value.
In this embodiment, in step 2, after the water purifier calculates the theoretical voltage value of the pressure regulating pump 8, the pressure regulating pump 8 is controlled to regulate the voltage value, the original voltage value is regulated to the theoretical voltage value, and the water purifier continues to produce water by working with the theoretical voltage value. After the voltage of the pressure regulating pump 8 is regulated to the theoretical voltage, the water pressure of the corresponding raw water after being regulated by the pressure regulating pump 8 is changed, so that the raw water can obtain the proper water pressure, the raw water can have the capacity of passing through the reverse osmosis membrane unit 9 when passing through the reverse osmosis membrane unit 9, the pre-membrane pressure of the reverse osmosis membrane unit 9 is ensured not to be too high, and the service life of the reverse osmosis membrane unit 9 is shortened; meanwhile, the proper raw water pressure can reduce the noise of the water purifier during working, and the water pipe explosion caused by improper water pressure of the water purifying water pipe 1 is avoided, so that the loss of lives and properties of users is avoided.
Example two
As shown in fig. 2, in this embodiment, the water purifier includes a water purification pipe 1, a water inlet 2 and a water outlet 3 are respectively disposed at two ends of the water purification pipe, and a first filtering unit 4, a water inlet electromagnetic valve 5, a temperature detecting unit 6, a TDS detecting unit 7, a pressure regulating pump 8, a reverse osmosis membrane unit 9, a flow detecting unit 10, and a second filtering unit 11 are sequentially disposed on the water purification pipe 1 along a water flow direction. The reverse osmosis membrane unit 9 is connected with a concentrated water pipe 12, and concentrated water generated after treatment by the reverse osmosis membrane unit 9 flows out through the concentrated water pipe 12. The water treated by the reverse osmosis membrane unit 9 is treated by the second filtering unit 11 and then is discharged from the water outlet 3 to form pure water for people to use; the water purifier is internally provided with a control unit, and the control unit is used for controlling the normal work of each unit in the water purifier.
In this embodiment, the side of intaking of first filter unit 4 is even adjacent with water purification water pipe 1's water inlet 2, and external water source supplies with raw water purification water pipe 1, and the raw water is at first through first filter unit 4, and the first filter unit 4 of control unit control carries out preliminary filtration to the raw water, filters the large granule pollutant in the raw water, and chemical contaminant etc. gets rid of.
In this embodiment, the water inlet solenoid valve 5 is opened, and the raw water filtered by the first filtering unit 4 enters the pressure regulating pump 8 to regulate the pressure, so that the raw water can obtain sufficient water pressure and smoothly pass through the reverse osmosis membrane unit 9. A TDS detection unit 7 and a temperature detection unit 6 are arranged between the water inlet electromagnetic valve 5 and the pressure regulating pump 8. The TDS detection unit 7 and the temperature detection unit 6 detect a TDS value of raw water and a water temperature value of raw water on the raw water side in a process that raw water flows into the pressure regulating pump 8 through the water inlet solenoid valve 5.
In this embodiment, TDS detecting element 7 is the TDS probe, and the control unit control solenoid valve 5 of intaking is opened, and the raw water gets into pressure regulating pump 8, and the control unit of water purifier will control the TDS value that TDS detecting element 7 detected the raw water, has preset a plurality of TDS range sections in the control unit of water purifier, and different TDS range sections correspond different voltage correction reference value X. The TDS range interval comprises: the first TDS range is TDS <200mg/L, and the corresponding voltage correction reference value is 60%; the second TDS range is not less than 200mg/L and less than 300mg/L, and the corresponding voltage correction reference value is 70%; the third TDS range is more than or equal to 300mg/L and less than 400mg/L, and the corresponding voltage correction reference value is 80 percent; the fourth TDS range interval is more than or equal to 400mg/L and less than 500mg/L of TDS, and the corresponding voltage correction reference value is 90 percent; the fifth TDS range is TDS not less than 500mg/L, and the corresponding voltage correction reference value is 100%. The control unit of the water purifier judges the TDS range section to which the TDS detection unit 7 belongs according to the TDS value of the raw water detected by the TDS detection unit, and determines a corresponding voltage correction reference value.
In this embodiment, the control unit of the water purifier controls the temperature detection unit 6 to detect the water temperature value of the raw water, after the temperature detection unit 6 obtains the water temperature value of the raw water, the control unit calculates according to the water temperature value of the raw water to obtain a first correction voltage value T, and a relational expression between the first correction voltage value and the water temperature value of the raw water is preset in the control unit.
In this embodiment, after raw water entered pressure regulating pump 8, pressure regulating pump 8 worked with invariable original voltage value, adjusted certain water pressure with raw water, and raw water entered reverse osmosis membrane unit 9 and filtered, reverse osmosis membrane unit 9 can thoroughly hold back the pollutant that first filter unit 4 did not filter and get rid of.
In this embodiment, the flow detection unit 10 is disposed downstream of the reverse osmosis membrane unit 9, the flow detection unit 10 is a flow meter, the control unit controls the flow detection unit 10 to detect an actual amount of purified water generated by the water purifier after the raw water is filtered by the reverse osmosis membrane unit 9, when the actual amount of purified water generated by the water purifier reaches a preset amount of purified water, the water purifier calculates a second voltage correction value according to the actual amount of purified water, and a relational expression between the second voltage correction value and the amount of purified water is preset in the control unit. The preset pure water amount is preset in the water purifier.
In this embodiment, the concentrated water generated after being filtered by the reverse osmosis membrane unit 9 is discharged through the concentrated water pipe 12; pure water generated after being filtered by the reverse osmosis membrane unit 9 enters the second filtering unit 11 for filtering, and the second filtering unit 11 can remove chlorine and peculiar smell in the pure water and change the taste of the pure water.
In this embodiment, after obtaining the voltage correction reference value, the first voltage correction value, and the second voltage correction value, the control unit calculates a voltage correction coefficient, and the calculation relationship between the voltage correction coefficient and the voltage correction reference value, and the calculation relationship between the first voltage correction value and the second voltage correction value are preset in the control unit.
In this embodiment, after obtaining the voltage correction coefficient, the control unit calculates a theoretical voltage value of the voltage regulator pump 8 according to the original voltage value of the voltage regulator pump 8, and a relational expression between the theoretical voltage value and the original voltage value and the voltage correction coefficient is preset in the control unit.
In this embodiment, the water purifier includes the voltage adjustment module that is used for adjusting the voltage of pressure regulating pump 8, the voltage adjustment module is connected with pressure regulating pump 8 electricity, after the control unit obtained the theoretical voltage value of pressure regulating pump 8, the control unit will control voltage adjustment module adjustment pressure regulating pump 8's voltage, with the original voltage value adjustment of pressure regulating pump 8 to theoretical voltage value, make the raw water that passes through pressure regulating pump 8 obtain suitable water pressure, it is too high to avoid reverse osmosis membrane unit 9's water pressure before the membrane, cause reverse osmosis membrane unit 9 life to shorten, and cause the water purifier noise too high, even water purification pipe 1 blasting.
In this embodiment, the voltage of adjustment pressure regulating pump that voltage adjustment module can self-adaptation under the control of the control unit, make the water purifier carry out water purification during operation in the region of difference, can both be according to the quality of water condition in different regions, the temperature condition, the voltage of intelligent adjustment pressure regulating pump 8, make the raw water through the pressure regulating of pressure regulating pump 8 can both reach a suitable water pressure, guarantee the raw water when reverse osmosis membrane unit 9, not only can pass through reverse osmosis membrane unit 9 smoothly, can guarantee simultaneously that the water pressure is suitable, can not cause the membrane front pressure of reverse osmosis membrane unit 9 too high, reduce the life-span of membrane.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A control method of a pressure regulating pump of a water purifier is characterized by comprising the following steps:
after the water purifier starts to produce water, acquiring a raw water TDS value, a raw water temperature value and an original voltage value of a pressure regulating pump at the upstream of the pressure regulating pump;
the water purifier acquires the actual pure water amount currently generated by the water purifier, and when the actual pure water amount reaches the preset pure water amount, the water purifier calculates the theoretical voltage value of the pressure regulating pump to be regulated according to the raw water TDS value, the raw water temperature value, the original voltage value of the pressure regulating pump and the actual pure water amount generated by the water purifier, and regulates the original voltage value of the pressure regulating pump to the theoretical voltage value, so that the raw water subjected to the water pressure regulation by the pressure regulating pump has a proper water pressure value.
2. The method for controlling the pressure regulating pump of the water purifier according to claim 1, wherein: after the water purifier starts to produce water, the pressure regulating pump works according to the original voltage value, and when the actual pure water quantity produced by the water purifier reaches the preset pure water quantity, the water purifier regulates the original voltage value of the pressure regulating pump into a theoretical voltage value;
preferably, when the water purifier detects that the actual pure water amount generated by the water purifier reaches the preset pure water amount, the water purifier stops water production; and after the water purifier adjusts the original voltage value of the pressure regulating pump to the theoretical voltage value, the water purifier restarts to produce water, and the pressure regulating pump operates at the theoretical voltage value.
3. The method for controlling the pressure regulating pump of the water purifier according to claim 1, wherein: the water purifier obtains a theoretical voltage value of the pressure regulating pump to be adjusted according to an original voltage value of the pressure regulating pump:
v — V0 × a, where V0 is the original voltage value and a is the voltage correction factor.
4. The control method of the pressure regulating pump of the water purifier according to claim 3, characterized in that: the voltage correction coefficient is calculated by the following formula:
and A is X + T + L, wherein X is a voltage correction reference value, T is a first voltage correction value, and L is a second voltage correction value.
5. The control method of the pressure regulating pump of the water purifier according to claim 4, characterized in that: the water purifier is preset with a plurality of different TDS range sections, each TDS range section corresponds to a different voltage correction reference value, and the voltage correction reference value is preset in the water purifier; wherein the first TDS range is TDS <200mg/L, and the corresponding voltage correction reference value is 60%; the second TDS range interval is not less than 200mg/L and less than 300mg/L, and the corresponding voltage correction reference value is 70%; the third TDS range is more than or equal to 300mg/L and less than 400mg/L, and the corresponding voltage correction reference value is 80 percent; the fourth TDS range interval is not less than 400mg/L and less than 500mg/L of TDS, and the corresponding voltage correction reference value is 90 percent; the fifth TDS range is that TDS is more than or equal to 500mg/L, and the corresponding voltage correction reference value is 100%; after the water purifier starts to produce water, the TDS range section to which the water purifier belongs is determined according to the detected TDS value of the raw water, and the corresponding voltage correction reference value is acquired.
6. The control method of the pressure regulating pump of the water purifier according to claim 4, characterized in that: after the water purifier starts to produce water, acquiring a first voltage correction value according to the detected water temperature value of raw water:
t ═ [ (T0-25)/100] × 100%, wherein T0 is the water temperature value.
7. The control method of the pressure regulating pump of the water purifier according to claim 4, characterized in that: when the actual pure water amount generated by the water purifier reaches the preset pure water amount, acquiring a second voltage correction value according to the actual pure water amount:
l ═ [ (7000-L0)/1050] × 100%, where L0 is the amount of pure water.
8. A water purifier having the control method according to any one of claims 1 to 7, comprising a purified water pipe through which a water flow flows, wherein the purified water pipe is provided with:
the temperature detection unit is used for detecting the water temperature value of the raw water;
the TDS detection unit is used for detecting a TDS value of raw water;
the pressure regulating pump is used for regulating the water pressure of raw water;
the reverse osmosis membrane unit is used for filtering the raw water after pressure regulation;
and the flow detection unit is used for acquiring the actual pure water amount generated by the water purifier.
9. The water purifier according to claim 8, wherein: the water purifier comprises a voltage adjusting module, and the voltage adjusting module is electrically connected with the pressure regulating pump so as to adjust the voltage value of the pressure regulating pump.
10. A water purifier according to claim 8 or 9, characterized in that: the water purifier comprises a control unit, wherein the control unit is used for controlling the normal work of a temperature detection unit, a TDS detection unit, a pressure regulating pump, a reverse osmosis detection unit and a flow detection unit and controlling the start and stop of the water purifier; the control unit is also used for calculating a theoretical voltage value of the voltage regulating pump to be regulated and controlling the voltage regulation module to regulate the original voltage value of the voltage regulating pump to the theoretical voltage value.
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| CN112624371A (en) * | 2020-12-16 | 2021-04-09 | 珠海格力电器股份有限公司 | Pressure regulating method and device for water purification system, water purification system and readable storage medium |
| CN114409112A (en) * | 2022-01-10 | 2022-04-29 | 珠海格力电器股份有限公司 | Water purifier control method and device and water purifier |
| WO2023071243A1 (en) * | 2021-10-27 | 2023-05-04 | 常州大学 | Equipment set for supplying drinking water in the field |
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