CN113786653B

CN113786653B - Water purification equipment and control method and control device thereof

Info

Publication number: CN113786653B
Application number: CN202111291327.5A
Authority: CN
Inventors: 董情; 谢武彬; 方永生; 李锦彬; 龙云钲
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-10-25
Anticipated expiration: 2041-10-29
Also published as: CN113786653A

Abstract

The invention relates to the technical field of water purification equipment, in particular to water purification equipment and a control method and a control device thereof. The water purification unit includes: the filter element comprises one or more filter elements, and a water inlet and a water outlet are formed in each filter element; the opening and closing unit is communicated with the water inlet and/or the water outlet of the filter element and is suitable for controlling the opening and closing of the water inlet and/or the water outlet so as to switch the water purifying equipment among a water producing mode, a water pumping mode and a flushing mode; and the water pumping unit is communicated with the opening and closing unit and is suitable for pumping out the water in the filter element when the water purifying equipment is in a water pumping mode. According to the water purifying equipment provided by the invention, the water pumping unit is arranged, and when the integrated valve is in a water pumping mode, the water in the filter element is pumped out by using the water pumping unit, so that the water in the filter element is emptied, the back pressure during flushing is reduced, and the flushing effect is improved.

Description

Water purification equipment and control method and control device thereof

Technical Field

The invention relates to the technical field of water purification equipment, in particular to water purification equipment and a control method and a control device thereof.

Background

Along with the improvement of the life quality of people, the water purifier is gradually popularized to use, a filter element is usually arranged in the water purifier, the filter element needs to be cleaned after being used for a long time, the common cleaning mode comprises manual disassembly cleaning or automatic flushing, wherein the manual disassembly cleaning method is complex in operation, and inconvenience is brought to users; the water purifier adopting automatic flushing does not need manual disassembly, but the water purifier with automatic flushing in the prior art has the defects that the back pressure is larger during flushing and the flushing effect is poorer because water exists in the cavity at any time.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that the water purifier in the prior art has poor flushing effect due to large back pressure during automatic flushing, thereby providing a water purifying device capable of improving the flushing effect.

The invention aims to solve another technical problem of overcoming the defect that the water purifier in the prior art has poor flushing effect due to high back pressure during automatic flushing, thereby providing a control method of water purification equipment capable of improving the flushing effect.

In order to solve the above technical problems, the present invention provides a water purification apparatus, comprising:

the filter element comprises one or more filter elements, and a water inlet and a water outlet are formed in each filter element;

the opening and closing unit is communicated with the water inlet and/or the water outlet of the filter element and is suitable for controlling the opening and closing of the water inlet and/or the water outlet so as to switch the water purifying equipment among a water producing mode, a water pumping mode and a flushing mode;

and the water pumping unit is communicated with the opening and closing unit and is suitable for pumping out the water in the filter element when the water purifying equipment is in a water pumping mode.

Optionally, the method further includes:

the water inlet pipeline is communicated with the opening and closing unit and is suitable for introducing raw water into the filter element when the water purifying equipment is in a water making mode or a flushing mode;

the water outlet pipeline is communicated with the opening and closing unit, and the water pumping unit is arranged on the water outlet pipeline;

when the water purifying equipment is in a water pumping mode, the water inlet pipeline is switched off, and the water outlet pipeline is switched on.

As another aspect, a control method of a water purifying apparatus provided by an embodiment of the present invention is applied to the water purifying apparatus described above, and includes:

acquiring a pollution blockage parameter;

judging whether the pollution and blockage parameter reaches a pollution and blockage threshold value;

when the dirt blocking parameter reaches a dirt blocking threshold value, controlling the water purifying equipment to be switched to a water pumping mode, and starting a water pumping unit to pump for T1 time;

and controlling the integrated valve to switch to a flushing mode and acting according to a preset flushing strategy.

Optionally, the fouling parameters include: the current water outlet flow value or the current water outlet pressure value.

Optionally, when dirty stifled parameter reaches dirty stifled threshold value, control water purification unit switches to the mode of drawing water to start the unit of drawing water and draw T1 time, include:

and the water inlet pipeline is closed, and the water outlet pipeline is communicated.

Optionally, control water purification unit and switch over to washing mode to act according to presetting and washing the tactics, include: acquiring a current water inlet pressure value; determining the flushing time T based on the current water inlet pressure value and the corresponding relation between the current water inlet pressure value and the flushing time _{General (1)} 。

Optionally, the flushing time T _{General assembly} Consists of n washing cycles, the retention time of each washing cycle is T _{General assembly} /n；

Before each flushing cycle, the water purification device is controlled to be switched to a water pumping mode, and the water pumping unit is started to pump for T1 time.

Optionally, the opening and closing unit includes an integration valve; determining the flushing time T based on the current inflow pressure value and the corresponding relation between the current inflow pressure value and the flushing time _{General assembly} The method comprises the following steps:

adjusting the integrated valve to a first flushing state for a retention time T _{General (1)} /2n；

Adjusting the integrated valve to a second flushing state for a retention time T _{General assembly} /2n；

Repeating the cycle of the first flushing state and the second flushing state for a total of n times;

and adjusting the integrated valve to act to an initial state.

Optionally, the adjustment integration valve is actuated to the first flushing state from the 2 nd time to the n nd time, and the retention time T _{General assembly} Before/2 n, the method also comprises the following steps: and the control integrated valve is switched to a water pumping mode, and a water pumping unit is started to pump for T1 time.

As another aspect, an embodiment of the present invention further provides a control device for a water purification apparatus, including:

the acquisition module is used for acquiring the pollution blockage parameters;

the judging module is used for judging whether the pollution blockage parameter reaches a pollution blockage threshold value;

the control module is used for controlling the water purifying equipment to be switched to a water pumping mode and starting the water pumping unit to pump for T1 time when the dirt blocking parameter reaches a dirt blocking threshold value; and controlling the water purifying equipment to be switched to a flushing mode, and acting according to a preset flushing strategy.

As another aspect, an embodiment of the present invention further provides an electrical device, including: the processor is used for executing a control program of the water purifying equipment stored in the memory so as to realize the control method of the water purifying equipment.

As another aspect, embodiments of the present invention further provide a storage medium, where one or more programs are stored, and the one or more programs are executable by one or more processors to implement the control method of the water purifying apparatus.

The technical scheme of the invention has the following advantages:

1. according to the water purifying equipment provided by the invention, the water pumping unit is arranged, and when the opening and closing unit is in the water pumping mode, the water in the filter element is pumped out by the water pumping unit, so that the water in the filter element is emptied, the back pressure during flushing is reduced, and the flushing effect is improved.

2. According to the control method of the water purification equipment provided by the embodiment, the pollution blockage parameters are obtained; judging whether the pollution and blockage parameter reaches a pollution and blockage threshold value; when the pollution blockage parameter reaches a pollution blockage threshold value, controlling the water purifying equipment to switch to a water pumping mode, and starting a water pumping unit to pump for T1 time; then controlling the water purification equipment to switch to a flushing mode, and acting according to a preset flushing strategy; the execution of the flushing strategy can be determined according to the actual blocking condition of the filter element, the timeliness of the execution of the flushing strategy is ensured, the condition of early flushing or delayed cleaning is avoided, and the execution accuracy of the flushing strategy is improved; simultaneously, before carrying out the strategy of washing, start earlier the unit that draws water and draw T1 time, can take out the water in the filter core to the inside water of evacuation filter core reduces the backpressure when washing, promotes and washes the effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a cross-sectional view of a composite filter element of the present invention with the filter element positioned above and below;

FIG. 2 is a schematic view of the composite filter element of the present invention with the filter element disposed up and down to produce water;

FIG. 3 is a schematic view of a first filter element backflushing a second filter element of the composite filter element with filter elements arranged up and down according to the present invention;

FIG. 4 is a schematic view of a second cartridge backflushed to the first cartridge of the composite cartridge of the present invention with cartridges disposed one above the other;

FIG. 5 is a cross-sectional view of a composite filter element having inner and outer layers with a filter element according to the present invention;

FIG. 6 is a schematic view of the integrated circuit board and integrated valve of the present invention in an exploded state;

FIG. 7 is a schematic view of an integrated circuit board of the present invention;

FIG. 8 is a schematic cross-sectional view of the integrated circuit board and integrated valve of the present invention in an installed state;

FIG. 9 is a plan view of the integrated circuit board and integrated valve of the present invention in an installed state;

FIG. 10 is a top view of the integrated circuit board of the present invention;

FIG. 11 is a schematic structural view of the valve cartridge of the present invention;

FIG. 12 is a schematic structural view of a turntable according to the present invention;

FIG. 13 is a partial cross-sectional view of the integrated circuit board of the present invention;

FIG. 14 is a schematic internal view of the integration valve of the present invention in a first position;

FIG. 15 is a schematic internal view of the integration valve of the present invention in a second position;

FIG. 16 is a schematic internal view of the integration valve of the present invention in a third position;

FIG. 17 is an exploded view of the composite filter element, integrated water circuit board and integrated valve of the present invention;

FIG. 18 is a schematic cross-sectional view of the composite filter element, integrated circuit board and integrated valve of the present invention in an installed state;

FIG. 19 is a schematic view of a water purification apparatus of the present invention;

fig. 20 is a flowchart of a control method of a water purifying apparatus of the present invention;

fig. 21 is a schematic block diagram of a control device of the water purifying apparatus of the present invention;

fig. 22 is a schematic structural diagram of an electrical apparatus according to the present invention.

Description of the reference numerals:

a1, a composite filter element; a11, a first ultrafiltration membrane; a12, a second ultrafiltration membrane; a2, a shell; a3, an inner shell; a41, a first water inlet; a42, a second water inlet; a51, a first purified water outlet; a52, a second purified water outlet; a6, a filter element seat body; a61, a first loop; a611, forming a first loop; a62, a second loop; a621, opening a second loop; a63, a third loop; a631, a third ring opening; a64, a central circular track; a641, opening a central circular channel; a65, a total water purifying port;

b0, an integration valve; b1, a valve body; b11, a raw water inlet; b12, a first valve body chamber; b13, a second valve body chamber; b14, a first inlet and outlet pipeline; b15, a second inlet and outlet pipeline; b16, a wastewater outlet; b17, a third valve body chamber; b2, a valve core; b21, a valve core inlet; b22, a first valve core outlet; b23, a second valve core outlet; b3, a turntable; b31, a first flow path; b32, a second flow path; b33, a third flow path; b34, fixing holes; b35, kidney-shaped holes; b4, a motor; b5, pressing a cover;

f1, a water pumping unit; f2, a purified water outlet control valve; f3, post-processing components; f31, a flow meter; f32, a water pump; f321, a water pump control module; f33, a preprocessing unit; f34, a reverse osmosis filter element; f35, a reverse osmosis water outlet control valve; f36, post-treatment filter element; f37, a pressure switch; f38, a water faucet; f4, a water inlet pipeline; f5, a water outlet pipeline.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like 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 specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example one

Referring to fig. 1 to 19, the water purifying apparatus provided in this embodiment includes:

and the water pumping unit f1 is communicated with the opening and closing unit and is suitable for pumping out the water in the filter element when the water purifying equipment is in a water pumping mode.

Preferably, the water purification device comprises a water preparation mode, a water pumping mode and a flushing mode, and raw water enters from the water inlet and is discharged from the water outlet after passing through the filter element in the water preparation mode. In the water pumping mode, the water inlet is closed, and the water pumping unit f1 is started to pump out the water in the filter element. When the washing mode, raw water or purified water enters the inside of the filter element from the water outlet of the filter element and reversely flows out from the outside of the filter element, and then sewage is discharged from the water inlet.

The water purification equipment provided by the embodiment is provided with the water pumping unit f1, and when the integrated valve b0 is in the water pumping mode, the water in the filter element is pumped out by using the water pumping unit f1, so that the water in the filter element is emptied, the back pressure during flushing is reduced, and the flushing effect is improved.

When the filter element is filled with water, the washing force of the water for washing the filter element on the surface of the filter element is small after the water enters; after the water in the filter element is emptied, the water for flushing the filter element has larger scouring force on the surface of the filter element after entering again, and the flushing effect is better.

Preferably, the number of the filter elements can be one, and the number of the filter elements can also be multiple, wherein multiple means two or more, and when the number of the filter elements is multiple, the filter elements are preferably arranged in parallel.

When the number of the filter elements is multiple, the filter elements can be in the form of multiple filter elements which are arranged relatively independently, and can also be a composite filter element a1. Taking the number of the filter elements as two as an example, optionally, the filter element includes a first independent filter element and a second independent filter element, and the first independent filter element and the second independent filter element are two independent filter elements; or the filter core is composite filter core a1, composite filter core a1 is through the combined type design, and its inside is provided with first filter core and second filter core, first filter core and second filter core are two inside filter cores of composite filter core a1.

Preferably, the opening and closing unit may be in the form of a valve assembly, an integrated valve, a pipe clamp, or the like, and is used for controlling the opening and closing states of the water inlet pipe and/or the water outlet pipe.

The present embodiment preferably takes a composite filter element as an example for description; meanwhile, the present embodiment is preferably explained by taking an integrated valve as an example. Specifically, water purification unit still includes:

the water inlet pipeline f4 is communicated with the opening and closing unit and is suitable for introducing raw water into the filter element when the water purifying equipment is in a water making mode or a flushing mode;

the water outlet pipeline f5 is communicated with the opening and closing unit, and the water pumping unit f1 is arranged on the water outlet pipeline f 5;

when the water purifying equipment is in a water pumping mode, the water inlet pipeline f4 is turned off, and the water outlet pipeline f5 is turned on.

Preferably, the water inlet pipeline f4 is communicated with the opening and closing unit, so that the opening and closing unit is controlled to communicate the water inlet pipeline f4 with the water inlet of the filter element in a water making mode conveniently, and raw water enters the filter element; or when the filter element is in a flushing mode, the opening-closing unit is controlled to communicate the water inlet pipeline f4 with the water inlet of the filter element, so that raw water or purified water enters the inside of the filter element, in one implementation form, the purified water can be stored in the purified water tank, and conveniently flows in from the water inlet pipeline f4, as another preferred implementation form, two independent filter elements arranged in parallel or a composite filter element with two filter elements is taken as an example, the raw water can be introduced into one of the two filter elements connected in parallel, and after the purified water is prepared by the filter element, the purified water is introduced into the inside of the other filter element, and the other filter element is reversely flushed.

Preferably, the water pumping unit f1 is disposed on the water outlet pipeline f5, the opening and closing unit is controlled to close the water inlet pipeline f4, so that raw water cannot enter the filter element, the opening and closing unit is controlled to conduct the water outlet pipeline f5, and water in the filter element is pumped out under the action of the water pumping unit f 1.

Preferably, the filter element can be a single independent filter element, a composite filter element or a plurality of independent filter elements.

When a single independent filter element is adopted, the filter element is only provided with one water inlet and one water outlet, raw water enters from the water inlet and flows out from the water outlet in a water preparation stage, and raw water or purified water enters from the water outlet and flows out from the water inlet in a flushing stage, so that the back flushing of the single independent filter element is realized.

When the composite filter element is adopted, at least two filter elements are arranged in parallel in one composite filter element, for simplifying the description, the two filter elements are arranged in parallel in one composite filter element as an example, and as the two filter elements are provided with the water inlet and the water outlet, raw water can respectively enter from the water inlets of the two filter elements and respectively discharge from the water outlets of the two filter elements in the water preparation stage; in the flushing stage, raw water can enter from the water inlet of the first filter element, the raw water is discharged from the water outlet of the first filter element after being filtered by the first filter element, purified water discharged from the water outlet of the first filter element enters the inside of the second filter element through the water outlet of the second filter element, and the second filter element is backwashed outwards by the inside of the second filter element, so that the flushed sewage is discharged from the water inlet of the second filter element, and the effect of flushing the second filter element by means of the purified water prepared by the first filter element is realized. On the contrary, the effect of washing the first filter element by the purified water prepared by the second filter element can be realized, and the specific process is not repeated herein.

When the filter core is many independent filter cores, the water route flow direction of its inside is the same with when adopting composite filter core, and no longer repeated here.

The composite filter element provided in the present embodiment is described in detail below with reference to fig. 1 to 18:

the composite filter element a1 is internally provided with a plurality of filter elements in parallel, and each filter element is provided with a water inlet and a water outlet;

the integrated valve b0 is communicated with the water inlets of the filter elements;

a raw water inlet b11 adapted to introduce raw water into the composite filter element a1;

a waste water outlet b16 which is suitable for discharging the waste water of the composite filter element a1;

the integrated valve b0 comprises a water making mode for simultaneously communicating the raw water inlet b11 with the water inlets of the filter elements;

the integrated valve b0 further comprises a flushing mode which communicates the raw water inlet b11 with the water inlets of one or more of the filter elements and communicates the waste water outlet b16 with the water inlets of the other one or more of the filter elements.

It should be noted that the raw water refers to unfiltered water before the raw water is introduced into the water purification apparatus, the raw water is filtered by a filter element of the water purification apparatus to obtain purified water, the wastewater refers to water obtained after the filter element of the water purification apparatus is cleaned, the water production mode refers to a mode in which the raw water is introduced from a water inlet of the filter element, the raw water is filtered by the filter element and then is discharged from a water outlet, the flushing mode refers to a mode in which one or more of the plurality of filter elements are used for preparing purified water, and the prepared purified water is used for flushing another one or more of the filter elements.

The water purification unit that this embodiment provided is linked together through the water inlet that sets up collecting valve b0 and composite filter element a1, collecting valve b0 include with raw water inlet b11 and a plurality of the system water mode of the water inlet simultaneous intercommunication of filter core, and will raw water inlet b11 and one or more wherein the water inlet of filter core is linked together, and with waste water delivery port b16 and another one or more the mode of washing that the water inlet of filter core is linked together, through collecting valve b0 can realize making the switching between water mode and the mode of washing to the switching of route, need not complicated connecting tube way and valve, simple structure, convenient operation, and it washes other filter cores to utilize the water purification that one or more of them filter core made to wash under the mode, and the water purification washes effectually, is favorable to promoting user's satisfaction.

Specifically, the composite filter element a1 includes:

a housing a2;

the inner shell a3 is nested in the outer shell a2, the inner shell a3 is suitable for dividing the inner space of the outer shell a2 into a first filter element chamber and a second filter element chamber, and the open ends of the first filter element chamber and the second filter element chamber are respectively communicated with an external pipeline;

the first filter element is arranged in the first filter element chamber, the first filter element is provided with a first ultrafiltration membrane a11, and is provided with a first water inlet a41 and a first purified water outlet a51, and the first water inlet a41 and the first purified water outlet a51 are respectively communicated with the inner side and the outer side of the first ultrafiltration membrane a 11;

the second filter element is arranged in the second filter element chamber, the second filter element is provided with a second ultrafiltration membrane a12, and is provided with a second water inlet a42 and a second purified water outlet a52, and the second water inlet a42 and the second purified water outlet a52 are respectively communicated with the inner side and the outer side of the second ultrafiltration membrane a 12;

the composite filter element a1 is suitable for being switched between a water production mode and a flushing mode according to the conduction state of a water inlet and a water outlet, and the flushing mode comprises the following steps: a first filter element backflushing second filter element mode and a second filter element backflushing first filter element mode.

It should be noted that the state of backflushing the second filter element by the first filter element refers to the working state that only the first filter element prepares purified water, and the prepared purified water is used for flushing an ultrafiltration membrane of the second filter element; the state that the second filter element backflushs the first filter element refers to the working state that only the second filter element prepares purified water, and the prepared purified water is used for flushing an ultrafiltration membrane of the first filter element; the outer sides of the inner side and the outer side refer to the side which is in contact with raw water when the filter element is in a water making state, and the inner sides of the inner side and the outer side refer to the opposite side of the outer side.

Preferably, a first protection layer is arranged on the outer side of the first ultrafiltration membrane a11, a plurality of through holes are formed in the first protection layer, and the through holes are suitable for communicating the first ultrafiltration membrane a11 with the first filter element chamber.

Preferably, a second protective layer is arranged on the outer side of the second ultrafiltration membrane a12, a spacer layer is formed between the second protective layer and the inner shell a3, and the first filter element is communicated with the first purified water outlet a51 through the spacer layer.

Preferably, the water production mode of the first ultrafiltration membrane a11 and the second ultrafiltration membrane a12 is an external pressure type.

Preferably, the first water inlet a41, the first purified water outlet a51, the second water inlet a42 and the second purified water outlet a52 are arranged from outside to inside in sequence.

Specifically, when the composite filter element a1 is in the water production mode, the first water inlet a41 and the second water inlet a42 are water inlets, the first purified water outlet a51 and the second purified water outlet a52 are water outlets, and the first water inlet a41 is communicated with the first filter element chamber and is communicated with the first purified water outlet a51 from the outer side to the inner side of the first ultrafiltration membrane a 11; the second water inlet a42 is communicated with the second filter element chamber, and is communicated with the second purified water outlet a52 from the outer side to the inner side of the second ultrafiltration membrane a 12;

when the composite filter element a1 is in a first filter element backflushing second filter element mode, the first water inlet a41 and the second purified water outlet a52 are water inlets, the first purified water outlet a51 and the second water inlet a42 are water outlets, the first water inlet a41 is communicated with the first filter element cavity, and is sequentially communicated with the first purified water outlet a51 and the second purified water outlet a52 after passing through the outer side to the inner side of the first ultrafiltration membrane a11, and is then communicated with the second water inlet a42 after passing through the inner side to the outer side of the second ultrafiltration membrane a 12;

when composite filter element a1 is in the first filter element mode of second filter element recoil, first water purification delivery port a51 with second water inlet a42 is the water inlet, first water inlet a41 with second water purification delivery port a52 is the delivery port, second water inlet a42 with second filter element cavity intercommunication, and via outside to inboard of second milipore filter a12 after in proper order with second water purification delivery port a52, first water purification delivery port a51 intercommunication, then via behind the inboard to the outside of first milipore filter a11 with first water inlet a41 intercommunication.

In the water purification device provided by the embodiment, the inner shell a3 is arranged to divide the inner space of the outer shell a2 into a first filter element cavity and a second filter element cavity, a first filter element is arranged in the first filter element cavity, and a second filter element is arranged in the second filter element cavity, so that the parallel composite arrangement of the two filter elements is realized, and the overall volume of the ultrafiltration composite filter element is effectively reduced; simultaneously, through setting up first filter core includes first water inlet a41 and first water purification delivery port a51 the second filter core includes second water inlet a42 and second water purification delivery port a52, realizes ultrafiltration composite filter core switches over between water preparation mode, first filter core recoil second filter core mode and the first filter core mode of second filter core recoil according to the on-state of water inlet and delivery port, just switching over of ultrafiltration composite filter core between different modes only needs to change the on-state of water inlet and delivery port and can realize, simple structure, convenient operation, and the cleaning performance is good.

Specifically, the composite filter element a1 further comprises: and the filter element seat body a6 is suitable for being communicated with the composite filter element a1 and is provided with a loop which is equal to the total number of the water inlet and the water outlet.

Specifically, the first purified water outlet a51 and the second purified water outlet a52 are two independent outlets respectively communicated with an external pipeline, and the filter element seat body a6 includes: a first loop a61 communicated with the first water inlet a41, the first loop a61 being provided with a first loop opening a611 adapted to communicate the first water inlet a41 with an external pipeline;

the second loop a62 is communicated with the first purified water outlet a51, and the second loop a62 is provided with a second loop opening a621 suitable for communicating the first purified water outlet a51 with an external pipeline;

a third loop a63 communicating with the second water inlet a42, the third loop a63 being provided with a third loop opening a631 adapted to communicate the second water inlet a42 with an external pipe;

the central circular channel a64 is communicated with the second purified water outlet a52, the central circular channel a64 is provided with a central circular channel opening a641 which is suitable for communicating the second purified water outlet a52 with an external pipeline, and the central circular channel opening a641 is communicated with the second circular channel opening a 621.

Preferably, the composite filter element a1 comprises at least two filter elements, and when the number of the filter elements is 3, the filter element seat body a6 comprises 5 circular paths and a central circular path.

Specifically, the first purified water outlet a51 and the second purified water outlet a52 are communicated with each other inside the composite filter element a1 and converge to a confluence outlet, the confluence outlet is communicated with an external pipeline, and the filter element seat a6 includes: a first loop a61 communicating with the first water inlet a41, the first loop a61 being provided with a first loop opening a611 adapted to communicate the first water inlet a41 with an external pipe;

and the central circular channel a64 is communicated with the confluence outlet, and the central circular channel a64 is provided with a central circular channel opening a641 which is suitable for communicating the confluence outlet with an external pipeline.

Preferably, when the number of the filter cartridges is 3, the filter cartridge housing a6 includes 3 circular paths and a central circular path.

Preferably, the circular path and the central circular path of the filter element seat body a6 are in sealing fit with the water inlet and the water outlet through sealing rings.

The water purification unit that this embodiment provided has the ring road that equals with water inlet and delivery port total number through setting up filter core pedestal a6, and every ring road corresponds with a water inlet or a delivery port respectively, and every the ring road is provided with the trompil of outside pipeline intercommunication respectively, realizes water inlet and delivery port communicate with outside pipeline respectively, and it is right to be convenient for the water inlet reaches the control of delivery port on-state, thereby be convenient for realize ultrafiltration composite filter element is in make water mode and washing switching between the mode.

Specifically, the filter cartridge seat a6 further includes: and the main purified water outlet a65 is communicated with the first purified water outlet a51 and the second purified water outlet a52 through the central circular channel opening a 641.

Specifically, the water purification unit further includes: a first inlet and outlet pipeline b14 and a second inlet and outlet pipeline b15, wherein the first inlet and outlet pipeline b14 is adapted to communicate the first loop a61 with the integrated valve b0, and the second inlet and outlet pipeline b15 is adapted to communicate the third loop a63 with the integrated valve b0.

Specifically, the arrangement mode of the first filter element and the second filter element is up-down arrangement or inner-outer layer arrangement.

The integrated valve provided in the present embodiment is described in detail below with reference to fig. 1 to 18:

the integration valve b0 includes:

a valve body b1, on which a valve body inlet, at least three chambers including a first valve body chamber b12, a second valve body chamber b13 and a third valve body chamber b17, and at least three outlets including a first outlet, a second outlet and a third outlet are respectively configured;

a spool b2 disposed on the upper end surface of the valve body b1, wherein a spool inlet b21 and at least three spool outlets are formed on the spool, a first spool outlet b22 of the spool communicates with the first valve body chamber b12, a second spool outlet b23 of the spool b2 communicates with the second valve body chamber b13, a third spool outlet of the spool b2 communicates with a third valve body chamber b17 of the valve body b1, and the spool inlet b21 communicates with the valve body inlet; and

and a rotary disk b3, wherein a plurality of flow paths are respectively formed on the rotary disk b3, and the rotation of the rotary disk b3 causes the corresponding flow paths to be communicated with the corresponding valve core inlet b21 and the valve core outlet, so as to switch the flow paths.

Preferably, the valve body inlet is adapted to communicate with the raw water inlet b 11.

The water purifying apparatus provided by the embodiment has the advantages of small volume, low cost and high integration by configuring the valve body with the valve body inlet, the first valve body chamber b12, the second valve body chamber b13, the first inlet/outlet pipeline b14, the second inlet/outlet pipeline b15 and the third outlet, configuring the valve core inlet b21 and at least three valve core outlets on the valve core b2, the first valve body chamber b12 being communicated with the first valve body outlet b22 of the valve core b2, the second valve body chamber b13 being communicated with the second valve body chamber b2, and the third valve body chamber b17 being communicated with the third valve body chamber b13, the valve core inlet b21 being communicated with the valve body inlet, configuring a plurality of flow paths on the rotary disc b3, respectively, and by rotating the rotary disc b3, facilitating the corresponding flow paths to be communicated with the corresponding valve core inlet b21 and valve core outlet, so as to switch the flow paths.

Specifically, the first valve body chamber b12, the second valve body chamber b13, and the third valve body chamber b17 are provided at a distance from each other;

the first valve body chamber b12 is communicated with the first inlet and outlet pipeline b14 through the first outlet;

the second valve body chamber b13 is communicated with the second inlet and outlet pipeline b15 through the second outlet;

the third valve body chamber b17 is communicated with the waste water outlet b16 through the third outlet;

one of the first valve body chamber b12 and the second valve body chamber b13 is adapted to selectively communicate with the third valve body chamber b 17;

at least one of the first body chamber b12 and the second body chamber b13 is adapted to selectively communicate with the body inlet.

Specifically, the rotary disk b3 includes a first flow path b31 and a second flow path b32, wherein, when the integration valve b0 is in the first position, the first flow path b31 and the second flow path b32 are arranged in parallel and connected to the outside;

when the integration valve b0 is in the second position or the third position, one of the flow paths is connected to the outside, and then flows back to the inside of the valve body b1 from the outside through the other flow path and flows out to the outside through the valve body b 1.

It should be noted that, when the integration valve b0 is in the first position, the environment in which the integration valve b0 is applied may be a water production mode; when the integration valve b0 is in the second position, the environment in which the integration valve b0 is applied is a first cartridge backflush second cartridge mode; when the integration valve b0 is in the third position, the environment in which the integration valve b0 is applied is the second filter backflush first filter mode.

Specifically, the first flow path b31 communicates the spool inlet b21 and the first spool outlet b22, and the second flow path b32 communicates the spool inlet b21 and the second spool outlet b23.

Specifically, the rotary disk b3 further includes a third flow path b33 and a fourth flow path, the third flow path b33 is communicated with the spool inlet b21 and the first spool outlet b22, and the fourth flow path is communicated with the second spool outlet b23 and the third spool outlet; or

The third flow path b33 communicates with the spool inlet b21 and the second spool outlet b23, and the fourth flow path communicates with the first spool outlet b22 and the third spool outlet.

Specifically, when the integration valve b0 is in the first position, the rotary disk b3 rotates to the first position, the spool inlet b21 of the spool b2 communicates with the first spool outlet b22 through the first flow path b31 of the rotary disk b3, and the spool inlet b21 communicates with the second spool outlet b23 through the second flow path b 32; the first spool outlet b22 is communicated with the first valve body chamber b12 of the valve body b1, and then communicated with the first loop a61 through the first inlet and outlet pipeline b 14; the second spool outlet b23 is communicated with a second valve body chamber b13 of the valve body b1, and then is communicated with the third loop a63 through the second inlet and outlet pipeline b 15;

when the integration valve b0 is at the second position, the rotary disc b3 rotates to the second position, the spool inlet b21 is communicated with the first spool outlet b22 through the third flow path b33 of the rotary disc b3, and the second spool outlet b23 is communicated with the third spool outlet through the fourth flow path, at this time, the first spool outlet b22 is communicated with the first valve body chamber b12 of the valve body b1, and then is communicated with the first spool through the first inlet and outlet pipeline b14 and the first loop a61 in sequence; then, the waste water is communicated with the second valve body chamber b13 through the third loop a63 and a second inlet and outlet pipeline b15, and then communicated with the waste water outlet b16 through the fourth flow path of the rotating disc b3, the third valve core outlet and the third valve body chamber b17 of the valve body b1 through the second valve core outlet b23;

when the integration valve b0 is at the third position, the rotary disk b3 rotates to the third position, the spool inlet b21 is communicated with the second spool outlet b23 through the third flow path b33 of the rotary disk b3, the first spool outlet b22 is communicated with the third spool outlet through the fourth flow path, at this time, the second spool outlet b23 is communicated with the second spool chamber b13 of the valve body b1, is communicated with the second spool through the second inlet/outlet pipeline b15 and the third loop a63 in sequence, is communicated with the first valve body chamber b12 through the first loop a61 and the first inlet/outlet pipeline b14, and is communicated with the waste water outlet b16 through the first spool outlet b22 via the fourth flow path of the rotary disk b3, the third spool outlet and the third valve body chamber b17 of the valve body.

Specifically, the fourth flow path is configured as a kidney hole b35, and when the integration valve b0 is in the second position or the third position, the kidney hole b35 is rotated to communicate with two adjacent spool outlets of the spool b 2.

Preferably, the valve core b2 may be provided with 5 ports, one water inlet, two water outlets and two waste water ports, and further preferably, the two waste water ports may be combined into one.

Specifically, the integration valve b0 further includes: the motor b4 and the gland b5, wherein the gland b5 is arranged on the rotary disc b3, a fixing hole b34 matched with a motor shaft of the motor b4 is formed in the rotary disc b3, the motor b4 is arranged on the gland b5, the motor b4 and the gland b5 are connected into a whole through a fastener, a through hole is formed in the gland b5, a motor shaft of the motor b4 penetrates through the through hole and can be inserted into the fixing hole b34, and the rotary disc b3 is driven to rotate through the rotation of the motor shaft.

Preferably, in the present application, the motor b4 is additionally provided, and the motor shaft of the motor b4 penetrates through the through hole on the gland b5 and then is inserted into the fixing hole b34 on the turntable b3, it should be noted that the motor shaft is inserted into the fixing hole b34, and the motor shaft and the fixing hole b34 are fixedly connected in the circumferential direction, that is, the motor shaft rotates to drive the turntable b3 to rotate, so as to achieve the purpose of switching different flow paths.

The above-mentioned "fastener" can be bolt, screw or rivet, etc.

Specifically, the gland b5 and the valve body b1 are fixedly connected into a whole through a fastener, so that the rotary disc b3 and the valve core b2 are fixed between the gland b5 and the valve body b 1.

Preferably, the valve core b2 is placed on the upper end face of the valve body b1, the rotary disc b3 is arranged on the upper end face of the valve core b2, the gland b5 is arranged on the upper end face of the rotary disc b3, a motor shaft of the motor b4 penetrates through a through hole in the gland b5 and then is inserted into the fixing hole b34 in the rotary disc b3, then the motor b4 and the valve body b1 are connected into a whole by using a fastening piece, and meanwhile, the motor b4 and the gland b5 are connected into a whole by using a fastening piece, so that the integral fixed installation of the integrated valve can be realized.

Preferably, the rotating disk b3 and the valve core b2 are made of hard materials.

Preferably, the hard material comprises a ceramic.

Preferably, the turntable b3 and the valve element b2 can rotate relative to each other to switch different flow paths, and due to the material, the turntable b3 and the valve element b2 can be sealed from each other.

Specifically, the integration valve b0 further includes a sealing member disposed between the valve core b2 and the valve body b1, and the sealing member can seal each chamber of the valve core b2 and form the valve body b1 into an independent chamber to be connected to each valve core outlet of the valve core b 2.

Preferably, the sealing element is a silica gel gasket or a rubber gasket.

Preferably, the dial b3 is rotatable relative to the valve body b2 to switch different flow paths. It should be noted that the turntable b3 may be driven by the motor b4, and meanwhile, the turntable b3 may also be driven to rotate in a manual rotation manner.

The operation mode of the water purification apparatus is described in detail below:

when the water purification device is in a water production mode, the wastewater outlet b16 is closed, the integration valve b0 is in a first position, the raw water inlet b11 is simultaneously communicated with the first valve body chamber b12 and the second valve body chamber b13 through a valve body inlet, raw water is introduced from the raw water inlet b11, sequentially enters the first valve body chamber b12 through the valve core inlet b21, the first flow path b31 and the first valve core outlet b22, enters the first filter core chamber through the first inlet and outlet pipeline b14, the first loop a61 and the first water inlet a41, is filtered by the first ultrafiltration membrane a11 to obtain purified water, the prepared purified water flows through a spacing layer between the second ultrafiltration membrane and the inner shell a3 to reach the first purified water outlet a51, is communicated with the main purified water outlet a65 through the first purified water outlet a51 and the second loop a62, and finally is discharged from the main purified water outlet a 65; meanwhile, raw water is introduced from the raw water inlet b11, sequentially enters the second valve chamber b13 through the valve core inlet b21, the second flow path b32 and the second valve core outlet b23, enters the second filter element chamber through the second inlet and outlet pipeline b15, the third loop a63 and the second water inlet a42, is filtered by the second ultrafiltration membrane a12 to obtain purified water, the obtained purified water is communicated with the main purified water port a65 through the first purified water outlet a51 and the central loop a64, and finally the prepared purified water is discharged through the main purified water port a 65.

When the water purification equipment is in a flushing mode, the total water purification port a65 is closed, the wastewater outlet b16 is opened, when the water purification equipment is in a first filter element backflushing second filter element mode, the integrated valve b0 is in a second position, the raw water inlet b11 is communicated with the first valve body chamber b12 through a valve body inlet, the second valve body chamber b13 is communicated with the third valve body chamber b17, raw water is introduced from the raw water inlet b11, sequentially passes through the first valve body chamber b12, the first inlet and outlet pipeline b14, the first loop a61 and the first water inlet a41 to enter the first filter element chamber, is filtered by the first ultrafiltration membrane a11 to obtain purified water, and the prepared purified water enters the second filter element through the first purified water outlet a51, the second loop a62, the central circular channel a64 and the second purified water outlet a52, flows through the second ultrafiltration membrane a12 to clean the second water outlet a12, and wastewater at the cleaned water inlet is sequentially discharged from the second valve body chamber a42, the third loop a63, the second valve body chamber 17 b and the ultrafiltration membrane 17;

when the first filter element backflushing mode is performed on the second filter element, the integration valve b0 is located at the third position, the raw water inlet b11 is communicated with the second valve body chamber b13 through a valve body inlet, the first valve body chamber b12 is communicated with the third valve body chamber b17, raw water is introduced into the raw water inlet b11 and sequentially passes through the second valve body chamber b13, the second inlet and outlet pipeline b15, the third loop a63 and the second water inlet a42 to enter the second filter element chamber, purified water is obtained after the raw water is filtered by the second ultrafiltration membrane a12, the obtained purified water is obtained through the second purified water outlet a52, the central loop a64, the second loop a62 and the first purified water outlet a51 to enter the first filter element and flows through the first ultrafiltration membrane a11, the first ultrafiltration membrane a11 is cleaned, and the cleaned wastewater is sequentially discharged through the first water inlet a41, the first loop a61, the first loop a 14, the first valve body chamber b12 and the third valve body chamber b17 and the wastewater outlet 16 b.

Preferably, the water purification apparatus provided by this embodiment further includes an aftertreatment component f3, the aftertreatment component f3 is communicated with the purified water outlet end, and the purified water outlet control valve f2 is disposed at the purified water outlet end to control the communication between the purified water outlet end and the aftertreatment component f 3. Referring to FIG. 1, the aftertreatment component f3 is schematically shown to include: a water pump f32, a pretreatment unit f33, a reverse osmosis filter element f34, a post-treatment filter element f36, a pressure switch f37 and a water tap f38.

This application is through addding composite filter element a1 and setting up its front end in order to regard as leading filter core at aftertreatment subassembly f3, make it just realize comparatively meticulous filtering capability in earlier stage of making water, the water purification system of this application is through addding this composite filter element a1 and regard as leading filter core with its front end that sets up aftertreatment subassembly f3, it is compared in ordinary leading filter core, its filter fineness is higher, can protect several grades of filter cores in the back, the life-span of the filter core of the follow-up setting of extension.

The water pump f32 is connected to a water pump control module f321, and the water pump control module f321 can control the specific operation of the water pump f 32. The water pump control module f321 may be a controller.

Preferably, the post-treatment module f3 comprises a reverse osmosis filter element f34, and the reverse osmosis filter element f34 is an RO membrane (reverse osmosis membrane). The reverse osmosis filter element f34 is connected with a reverse osmosis water outlet control valve f35, and the reverse osmosis water outlet control valve f35 is in a full-open state under the state that the reverse osmosis filter element f34 is flushed and depressurized.

Preferably, a pretreatment unit f33 may be further provided before the reverse osmosis filter element f34, so that water is pretreated before entering the reverse osmosis filter element f 34; furthermore, a post-treatment filter element f36 can be arranged on the reverse osmosis filter element f34, so that the filtering precision is further improved.

Preferably, a pressure switch f37 is arranged on the pipeline of the aftertreatment component f 3. Specifically, the pressure switch f37 is arranged to flexibly adjust the pressure of the water purification system.

Preferably, the tap f38 facilitates the discharge of the filtered water.

Example two

Referring to fig. 20, the present embodiment provides a control method of a water purifying apparatus, which is applied to the water purifying apparatus according to the first embodiment, and includes:

s11, acquiring a pollution blocking parameter.

Use water purification unit as an example, because there is impurity in the aquatic, the filter core can have the jam to a certain extent after long-term the use, dirty stifled parameter is used for the jam state of sign filter core, when the filter core blockked up the certain degree, need wash the filter core to guarantee the normal filter effect of filter core. The fouling parameters may include: the current water outlet flow value or the current water outlet pressure value. The current effluent flow value can be obtained through a flow detection device, preferably, the flow detection device can be a flowmeter or a flow sensor; a flow meter or flow sensor may be provided on the water outlet line. The current water outlet pressure value can be acquired through a pressure detection device, preferably, the pressure detection device can be a pressure gauge or a pressure sensor, and the pressure gauge or the pressure sensor can be arranged on the water outlet pipeline.

And S12, judging whether the pollution and blockage parameter reaches a pollution and blockage threshold value.

The fouling threshold may be a preset value used to indicate that the filter element has become clogged to a critical value that requires flushing. Taking the water purifying apparatus as an example, when the fouling parameter is the current effluent flow value, the fouling threshold value may be set to the maximum flow value (e.g., 4.3 l/min) flowing through the effluent pipeline when the flushing is required, and the person skilled in the art may also determine the fouling parameter according to actual needs. When the dirt blocking parameter is the current water outlet pressure value, the dirt blocking threshold value can be set to the maximum pressure value of the water outlet pipeline flowing through when the flushing is required, and the dirt blocking threshold value can also be determined by the technical personnel in the field according to the actual requirement. And after the pollution blocking parameter is obtained, comparing the pollution blocking parameter with a pollution blocking threshold value, and determining the relation between the pollution blocking parameter and the pollution blocking threshold value.

And S13, when the dirt blocking parameter reaches a dirt blocking threshold value, controlling the opening and closing unit to switch to a water pumping mode, and starting the water pumping unit to pump for T1 time.

When the dirt blocking parameter reaches a dirt blocking threshold value, it can be determined that the filter element is blocked to a state needing to be washed, and a washing strategy needs to be executed to ensure normal use of the filter element in a subsequent stage. Before executing the washing strategy, the switching unit is controlled to switch to the water pumping mode, and the water pumping unit is started to pump for T1 time, so that water in the filter element can be discharged, the back pressure during washing is reduced, and the washing effect is improved. The pumping time of the pumping unit can be reasonably set according to the capacity of the filter element so as to ensure that water in the filter element can be emptied in the pumping time.

And S14, controlling the water purifying equipment to be switched to a flushing mode, and acting according to a preset flushing strategy.

And after the water in the filter element is discharged, controlling the water purifying equipment to be switched to a flushing mode, and acting according to a preset flushing strategy.

According to the control method of the water purification equipment provided by the embodiment, the pollution blockage parameters are obtained; judging whether the pollution blockage parameter reaches a pollution blockage threshold value; when the dirt blocking parameter reaches a dirt blocking threshold value, controlling the water purifying equipment to switch to a water pumping mode, and starting a water pumping unit to pump for T1 time; then controlling the water purifying equipment to switch to a flushing mode, and acting according to a preset flushing strategy; the execution of the flushing strategy can be determined according to the actual blocking condition of the filter element, the timeliness of the execution of the flushing strategy is ensured, the condition of early flushing or delayed cleaning is avoided, and the execution accuracy of the flushing strategy is improved; simultaneously, before carrying out the strategy of washing, start earlier the unit that draws water and draw T1 time, can take out the water in the filter core to the inside water of evacuation filter core reduces the backpressure when washing, promotes and washes the effect.

Specifically, when dirty stifled parameter reaches dirty stifled threshold value, control water purification unit switches to the mode of drawing water to start the unit of drawing water and draw T1 time, include:

and (3) turning off the water inlet pipeline f4 and turning on the water outlet pipeline f 5.

Before starting the pumping unit, the water inlet pipeline f4 needs to be shut off first, so that raw water cannot continuously flow into the water inlet pipeline f 4; meanwhile, the water outlet pipeline f5 is communicated, so that the water pumping unit can conveniently and smoothly pump water.

Specifically, control water purification unit switches to washing mode to the action is carried out according to presetting washing strategy, includes: acquiring a current water inlet pressure value;

determining the flushing time T based on the current water inlet pressure value and the corresponding relation between the current water inlet pressure value and the flushing time _{General assembly} 。

Time of flushing T _{General assembly} The determination of the water inlet pressure value and the corresponding relation between the current water inlet pressure value and the flushing time are determined based on the obtained current water inlet pressure value and the corresponding relation between the current water inlet pressure value and the flushing time, the corresponding relation between the current water inlet pressure value and the flushing time can be measured before leaving a factory, a flow sensor is installed on a water path, the flow pulse number under different water inlet pressures is recorded through experimental tests, and the water inlet pressure and the flow meter pulse number are stored through a controller. When the current water inlet pressure value needs to be acquired, the detected flow pulse number is transmitted to the controller, and the controller matches the detection value with the record value to find out the corresponding water inlet pressure.

Different water inlet pressure values P correspond to different flushing time T, and the larger the pressure is, the shorter the flushing time is. When the water inlet pressure value is detected to be P1, the corresponding filter element flushing time is matched to be T through the program _{Punch 1} (ii) a When the water inlet pressure value is detected to be P2, the corresponding filter element flushing time is matched to be T through the program _{Punch 2} (ii) a When the water inlet pressure value is detected to be P3, the corresponding filter element flushing time is matched to be T through the program _{Punch 3} 。

Furthermore, in order to improve the detection accuracy of the inflow water pressure value, the recorded data are detected for multiple times in the morning, at noon and at night, and when the detection values are within the set range value, the controller matches the detection values with the recorded values to determine the inflow water pressure value.

In particular, the flushing time T _{General (1)} Consisting of n washing cycles, the residence time of each washing cycle beingT _{General assembly} /n；

Specifically, the opening and closing unit includes an integration valve; determining the flushing time T based on the current water inlet pressure value and the corresponding relation between the current water inlet pressure value and the flushing time _{General assembly} The method comprises the following steps:

adjusting the integrated valve to a first flushing state for a retention time T _{General assembly} /2n；

and adjusting the action of the integrated valve to an initial state.

In this embodiment, the opening and closing unit may be an integrated valve, and a motor is disposed on the integrated valve and drives the valve element to rotate, so as to adjust the opening and closing state of the integrated valve. For example, in the initial state, the angle of the motor shaft is 0 °, and at this time, raw water enters from the water inlets of the two filter elements and is discharged from the water outlets of the two filter elements. When the dirt blocking parameter is determined to reach the dirt blocking threshold value, the integrated valve moves to a first flushing state, for example, the controller receives a signal, the controller transmits the signal to the motor, the motor shaft is controlled to rotate from 0 degrees to a first angle value (for example, +5 degrees), at the moment, raw water can enter from the water inlet of the first filter element, and flushed sewage is discharged from the water inlet of the second filter element, so that the effect of flushing the second filter element by using pure water prepared by the first filter element is realized, and the retention time T is kept in the state _{General assembly} 2n (e.g., 30 seconds). After the first flushing state is maintained for a certain time, the integrated valve is moved to the second flushing state, for example, the motor shaft is rotated from a first angle value (e.g., +5 °) to a second angle value (e.g., -5 °), at this time, raw water can be introduced from the water inlet of the second filter element, and the flushed sewage is discharged from the water inlet of the first filter element, so that the effect of flushing the first filter element with the clean water produced by the second filter element is achieved, and the clean water stays in the stateTime T _{General assembly} 2n (e.g., 30 seconds). After the first flushing state and the second flushing state are completed once, it is recorded as a cycle, and the cycle of repeating the first flushing state and the second flushing state is repeated for n times (for example, 5 times), and the flushing is completed. Thereby resetting the integration valve and adjusting the operation of the integration valve to an initial state (for example, the angle of the motor shaft is 0 °). In the whole washing process, the washing time is T _{General assembly} (e.g., 5 minutes).

Specifically, the adjustment integration valve is actuated to the first flushing state from the 2 nd time to the n nd time, and the retention time T is _{General assembly} Before/2 n, comprising: and the control integrated valve is switched to a water pumping mode, and the water pumping unit is started to pump for T1 time.

In the control method of the water purifying apparatus provided by this embodiment, the adjustment integration valve is actuated to the first flushing state for the retention time T from the 2 nd time to the n nd time _{General assembly} Before/2 n, the integrated valve is controlled to be switched to a pumping mode, and the pumping unit is started to pump for T1 time, so that the water in the filter element can be pumped out before the beginning of each cycle, the water in the filter element is emptied, the back pressure during flushing is reduced, and the flushing effect of each flushing cycle is ensured.

EXAMPLE III

This embodiment provides a water purification unit's controlling means, is applied to water purification unit and on, this water purification unit's controlling means includes:

the acquisition module 21 is used for acquiring the pollution blockage parameters;

the judging module 22 is used for judging whether the pollution and blockage parameter reaches a pollution and blockage threshold value;

the control module 23 is used for controlling the water purifying equipment to be switched to a water pumping mode and starting the water pumping unit to pump for T1 time when the dirt blocking parameter reaches a dirt blocking threshold value; and controlling the water purifying equipment to be switched to a flushing mode, and acting according to a preset flushing strategy.

As an optional implementation, the control module 23 includes: and the control submodule is used for switching off the water inlet pipeline and switching on the water outlet pipeline.

As an optional implementation, the control module 23 includes:the control submodule is used for acquiring the current water inlet pressure value; determining the flushing time T based on the current water inlet pressure value and the corresponding relation between the current water inlet pressure value and the flushing time _{General (1)} 。

As an optional implementation, the control module 23 includes: a control submodule for adjusting the action of the integrated valve to a first flushing state for a dwell time T _{General assembly} 2n; adjusting the integrated valve to a second flushing state for a retention time T _{General (1)} 2n; repeating the cycle of the first flushing state and the second flushing state for a total of n times; and adjusting the integrated valve to act to an initial state.

As an optional implementation, the control module 23 includes: a control submodule for adjusting the integrated valve action to the first flushing state from the 2 nd time to the n nth time and keeping the time T _{General assembly} Before/2 n, the control integration valve is switched to a water pumping mode, and the water pumping unit is started to pump for T1 time.

Example four

In this embodiment, an electrical apparatus is provided, as shown in fig. 22, where fig. 22 is a schematic structural diagram of the electrical apparatus provided in the embodiment of the present invention, and the electrical apparatus 400 includes: at least one processor 401, memory 402, at least one network interface 404, and other user interfaces 403. The various components in the appliance 400 are coupled together by a bus system 405. It is understood that the bus system 405 is used to enable connection communication between these components. The bus system 405 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled in the figure as the bus system 405.

The user interface 403 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.

It will be appreciated that memory 402 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 402 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 402 stores the following elements, executable units or data structures, or a subset thereof, or an expanded set thereof: an operating system 4021 and application programs 4022.

The operating system 4021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is configured to implement various basic services and process hardware-based tasks. The application programs 4022 include various application programs, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. A program for implementing the method according to the embodiment of the present invention may be included in the application 4022.

In this embodiment of the present invention, by calling a program or an instruction stored in the memory 402, specifically, a program or an instruction stored in the application 4022, the processor 401 is configured to execute the method steps provided by the method embodiments, for example, including: acquiring a pollution blockage parameter; judging whether the pollution blockage parameter reaches a pollution blockage threshold value; when the dirt blocking parameter reaches a dirt blocking threshold value, controlling the water purifying equipment to be switched to a water pumping mode, and starting a water pumping unit to pump for T1 time; and controlling the water purifying equipment to be switched to a flushing mode, and acting according to a preset flushing strategy.

In a possible embodiment, when the dirt blocking parameter reaches a dirt blocking threshold, the water purification device is controlled to switch to the water pumping mode, and the water pumping unit is started to pump for a time T1, including: and the water inlet pipeline is switched off, and the water outlet pipeline is switched on.

In one possible embodiment, the controlling the water purifying device to switch to the flushing mode and to act according to a preset flushing strategy comprises: acquiring a current water inlet pressure value; determining the flushing time T based on the current water inlet pressure value and the corresponding relation between the current water inlet pressure value and the flushing time _{General assembly} 。

In one possible embodiment, the flushing time T _{General assembly} Consists of n washing cycles, the retention time of each washing cycle is T _{General assembly} N; before each flushing cycle, the water purification device is controlled to be switched to a water pumping mode, and the water pumping unit is started to pump for T1 time.

In one possible embodiment, the valve comprises an integrated valve; determining the flushing time T based on the current water inlet pressure value and the corresponding relation between the current water inlet pressure value and the flushing time _{General assembly} The method comprises the following steps:

and adjusting the action of the integrated valve to an initial state.

In one possible embodiment, the adjustment integration valve is actuated to the first flushing state from the 2 nd time to the n nd time, and the dwell time T _{General assembly} Before/2 n, comprising: and the control integrated valve is switched to a water pumping mode, and the water pumping unit is started to pump for T1 time.

The method disclosed in the above embodiments of the present invention may be applied to the processor 401, or implemented by the processor 401. The processor 401 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 401. The Processor 401 may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software elements in the decoding processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, among other storage media that are well known in the art. The storage medium is located in the memory 402, and the processor 401 reads the information in the memory 402 and completes the steps of the method in combination with the hardware.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described herein may be implemented by means of units performing the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

The electrical apparatus provided in this embodiment may be the electrical apparatus shown in fig. 21, and may perform all the steps of the control method of the water purification apparatus shown in fig. 20, so as to achieve the technical effect of the control method of the water purification apparatus shown in fig. 20, please refer to the related description of fig. 20 for brevity, which is not described herein again.

The embodiment of the invention also provides a storage medium (computer readable storage medium). The storage medium herein stores one or more programs. Among others, the storage medium may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; the memory may also comprise a combination of memories of the kind described above.

When the one or more programs stored in the storage medium are executed by the one or more processors, the control method of the water purifying apparatus performed at the control device side is implemented.

The processor is used for executing a control program of the water purification apparatus stored in the memory to realize the following steps of the control method of the water purification apparatus executed on the control device side:

acquiring a pollution blockage parameter; judging whether the pollution blockage parameter reaches a pollution blockage threshold value; when the dirt blocking parameter reaches a dirt blocking threshold value, controlling the water purifying equipment to be switched to a water pumping mode, and starting a water pumping unit to pump for T1 time; and controlling the water purifying equipment to be switched to a flushing mode, and acting according to a preset flushing strategy.

In one possible embodiment, the controlling the water purifying device to switch to the flushing mode and to act according to a preset flushing strategy comprises: acquiring a current water inlet pressure value; determining the flushing time T based on the current water inlet pressure value and the corresponding relation between the current water inlet pressure value and the flushing time _{General (1)} 。

In one possible embodiment, the flushing time T _{General (1)} Consists of n washing cycles, the retention time of each washing cycle is T _{General (1)} N; before each flushing cycle, the water purification device is controlled to be switched to a water pumping mode, and the water pumping unit is started to pump for T1 time.

and adjusting the action of the integrated valve to an initial state.

In one possible embodiment, the adjustment integration valve is actuated to the first flushing state from the 2 nd time to the n nd time, and the dwell time T _{General assembly} Before/2 n, the method comprises the following steps: and the control integrated valve is switched to a water pumping mode, and the water pumping unit is started to pump for T1 time.

Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the components and steps of the various examples have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. A software module may reside in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A water purification unit, characterized in that includes:

the filter comprises composite filter elements, wherein at least two filter elements are arranged in parallel in one composite filter element, and each filter element is provided with a water inlet and a water outlet;

in the water preparation mode, raw water enters from the water inlets of the two filter elements respectively and is discharged from the water outlets of the two filter elements respectively; in the flushing mode, raw water enters from a water inlet of the first filter element, is filtered by the first filter element and then is discharged from a water outlet of the first filter element, clean water discharged from the water outlet of the first filter element enters the interior of the second filter element through a water outlet of the second filter element, and the second filter element is backwashed from the interior of the second filter element outwards, so that flushed sewage is discharged from a water inlet of the second filter element; otherwise, the first filter element is washed by the clean water prepared by the second filter element;

and the water pumping unit (f 1) is communicated with the opening and closing unit and is suitable for pumping out the water in the filter element when the water purifying equipment is in a water pumping mode.

2. The water purification apparatus of claim 1, further comprising:

the water inlet pipeline (f 4) is communicated with the opening and closing unit and is suitable for introducing raw water into the filter element when the water purifying equipment is in a water making mode or a flushing mode;

the water outlet pipeline (f 5) is communicated with the opening and closing unit, and the water pumping unit (f 1) is arranged on the water outlet pipeline (f 5);

when the water purifying equipment is in a water pumping mode, the water inlet pipeline (f 4) is switched off, and the water outlet pipeline (f 5) is switched on.

3. A control method of a water purifying apparatus, applied to the water purifying apparatus as claimed in any one of claims 1 to 2, comprising:

acquiring a pollution blockage parameter;

judging whether the pollution blockage parameter reaches a pollution blockage threshold value;

and controlling the water purifying equipment to be switched to a flushing mode, and acting according to a preset flushing strategy.

4. The control method of a water purification apparatus according to claim 3, wherein the fouling parameter comprises: the current water outlet flow value or the current water outlet pressure value.

5. The control method of the water purification unit according to claim 3, wherein when the dirt blocking parameter reaches a dirt blocking threshold, the water purification unit is controlled to switch to the water pumping mode and the water pumping unit is started to pump for T1 time, and the method comprises the following steps:

and (f 4) the water inlet pipeline is closed, and the water outlet pipeline (f 5) is conducted.

6. The control method of a water purification apparatus according to claim 3, wherein the water purification apparatus is controlled to switch to a flushing mode according to the control methodPresetting a flushing strategy to act, comprising: acquiring a current water inlet pressure value; determining the flushing time T based on the current water inlet pressure value and the corresponding relation between the current water inlet pressure value and the flushing time _{General assembly} 。

7. The control method of a water purification apparatus as claimed in claim 6, wherein the rinsing time T _{General assembly} Consists of n washing cycles, the retention time of each washing cycle is T _{General assembly} /n；

Before each flushing cycle, the water purifying device is controlled to be switched to a water pumping mode, and the water pumping unit is started to pump for T1 time.

8. The control method of a water purifying apparatus according to claim 6, wherein the opening and closing unit includes an integration valve; determining the flushing time T based on the current water inlet pressure value and the corresponding relation between the current water inlet pressure value and the flushing time _{General assembly} The method comprises the following steps:

and adjusting the action of the integrated valve to an initial state.

9. The method as claimed in claim 8, wherein the adjustment integration valve is actuated to the first flushing state from the 2 nd time to the n nth time for a retention time T _{General assembly} Before/2 n, the method also comprises the following steps: and the control integrated valve is switched to a water pumping mode, and the water pumping unit is started to pump for T1 time.

10. A control device of a water purifying apparatus, applied to the water purifying apparatus as claimed in any one of claims 1 to 2, comprising:

the acquisition module is used for acquiring the pollution blockage parameters;

the judging module is used for judging whether the pollution and blockage parameter reaches a pollution and blockage threshold value;

the control module is used for controlling the water purifying equipment to be switched to a water pumping mode and starting the water pumping unit to pump for T1 time when the sewage blockage parameter reaches a sewage blockage threshold value; and controlling the water purifying equipment to be switched to a flushing mode, and acting according to a preset flushing strategy.

11. An electrical device, comprising: a processor and a memory, wherein the processor is used for executing the control program of the water purifying device stored in the memory so as to realize the control method of the water purifying device in any one of claims 3 to 9.

12. A storage medium storing one or more programs executable by one or more processors to implement the method of controlling a water purifying apparatus of any one of claims 3 to 9.