阅读说明：本技术 用于洗衣机废水可循环的控制方法及洗衣机 (Control method for recycling waste water of washing machine and washing machine ) 是由 杨青波 戴文娟 连元龙 于 2018-08-30 设计创作，主要内容包括：本发明涉及洗衣机领域,公开了一种用于洗衣机废水可循环的控制方法及洗衣机,所述控制方法包括以下步骤：S1：将所述洗衣机洗涤或漂洗后的废水引入电絮凝容器(21),可选择地对所述废水进行电絮凝反应；S2：处理后进行静置,使絮渣沉淀,使得到处理水；S3：将所述处理水通过位于所述电絮凝容器(21)底部的过滤单元(26)滤去絮渣,得到循环水；S4：将所述循环水输送至所述洗衣机的盛水桶(11)中。本发明中,通过将洗涤程序、漂洗程序和污水处理程序结合,实现了洗涤水的循环利用,最终实现了污水处理装置和回用水存放容器合为一体,从而使洗衣机具有结构简单、体积较小、节水效果显著、制造成本低的优点。(The invention relates to the field of washing machines, and discloses a control method for recycling waste water of a washing machine and the washing machine, wherein the control method comprises the following steps: s1: introducing the waste water washed or rinsed by the washing machine into an electric flocculation container (21), and optionally carrying out electric flocculation reaction on the waste water; s2: standing after treatment to precipitate flocculated slag and make the flocculated slag reach treatment water; s3: filtering flocculated slag of the treated water through a filtering unit (26) positioned at the bottom of the electric flocculation container (21) to obtain circulating water; s4: conveying the circulating water into a tub (11) of the washing machine. In the invention, the washing program, the rinsing program and the sewage treatment program are combined, so that the cyclic utilization of the washing water is realized, and the sewage treatment device and the reuse water storage container are finally integrated, so that the washing machine has the advantages of simple structure, small volume, remarkable water-saving effect and low manufacturing cost.)

1. A control method for recycling waste water of a washing machine is characterized by comprising the following steps:

s1: introducing the waste water washed or rinsed by the washing machine into an electric flocculation container (21), and optionally carrying out electric flocculation reaction on the waste water;

s2: standing after treatment to precipitate flocculated slag and make the flocculated slag reach treatment water;

s3: filtering flocculated slag of the treated water through a filtering unit (26) positioned at the bottom of the electric flocculation container (21) to obtain circulating water;

s4: conveying the circulating water into a tub (11) of the washing machine.

2. The control method of claim 1, wherein the control method comprises:

s5: detecting the amount of the circulating water in the water containing barrel (11), and injecting purified water into the water containing barrel (11) when the amount of the circulating water does not reach the preset water consumption of the subsequent rinsing until the preset water consumption is reached.

3. The method of claim 2, wherein the predetermined amount of water is positively correlated to the weight of the laundry in the rinsing or washing.

4. The method for controlling the circulation of wastewater for a washing machine according to claim 2, wherein the method further comprises:

s6: a rinsing process is performed.

5. The method for controlling the circulation of wastewater for a washing machine according to claim 4, wherein the method further comprises:

s7: detecting the turbidity of the rinsing water after the last rinsing, and if the turbidity of the rinsing water is greater than a preset threshold value, returning to the step S1, wherein the rinsing water is taken as the washing or rinsing wastewater and introduced into the electroflocculation container (21); otherwise, the rinse water is drained out of the washing machine.

6. A laundry machine characterized by comprising a laundry treatment unit (10) having a tub (11), an electric flocculation treatment unit (20) communicating with a sewage discharge port of the tub (11), and a control unit for controlling the laundry treatment unit (10) and the electric flocculation treatment unit (20);

the electric flocculation treatment unit (20) comprises an electric flocculation container (21) and an electrode plate (22) arranged in the electric flocculation container (21), the electrode plate (22) is connected with an external power supply (23) and then subjected to electric flocculation reaction in the electric flocculation container (21), the electric flocculation treatment unit (20) further comprises a sewage discharge port (24) and a purified water outlet (25), the purified water outlet (25) is communicated with a water inlet of the clothes treatment unit (10), and a filtering unit (26) is arranged at the purified water outlet (25).

7. The washing machine as claimed in claim 6, comprising a detection unit for detecting whether water in the tub (11) reaches a preset water usage amount, the detection unit being electrically connected with the control unit.

8. Washing machine according to claim 6, characterized in that the filtering unit (26) is arranged outside the electroflocculation vessel (21) and at the bottom of the electroflocculation vessel (21).

9. A washing machine as claimed in claim 6, comprising a turbidity sensing unit electrically connected to the control unit, the control unit being capable of determining from the turbidity sensing unit whether the turbidity of the rinse water after the last rinse is greater than a preset threshold.

10. Washing machine according to claim 6, characterized in that inside the electroflocculation vessel (21) there is arranged an automatic floc collection unit.

11. Washing machine according to claim 6, characterized in that a water level sensor (27) is arranged in the electroflocculation vessel (21) in electrical connection with the control unit.

Technical Field

The invention relates to a washing machine, in particular to a control method for recycling waste water of the washing machine and the washing machine.

Background

With the development of economic technology, environmental pollution, such as water pollution, is more and more serious, and in order to treat the environment, the national regulation requires that the discharge of sewage meets certain requirements. Among them, domestic sewage is an important cause of water pollution, and laundry wastewater has become an important source of domestic sewage nowadays.

Specifically, the conventional washing machine has only a washing function but no washing sewage purification function, and washing wastewater cannot be recycled, so that the water consumption for washing clothes is large. Although some washing machines have a water-saving function, a water storage tank is generally arranged at the side position of the washing machine, a water pump is adopted for water injection and drainage, washing water and rinsing water with heavy dirt degree are directly discharged, secondary rinsing water and tertiary rinsing water with light dirt degree are stored for next use, and the water-saving efficiency is low. In addition, although some washing machines have a sewage treatment function, in order to save water, the washing machines need to be provided with a sewage treatment device and a reuse water storage container, so that the washing machines and the sewage treatment equipment have complex structures and large volumes, and are not favorable for transportation and use.

Disclosure of Invention

The invention aims to solve the problem that the prior washing machine can not realize the treatment and recycling of the washing wastewater through a simple structure, and provides a control method for recycling the washing wastewater of the washing machine and the washing machine.

In order to accomplish the above object, an aspect of the present invention provides a control method for a washing machine in which wastewater can be circulated, the control method including the steps of:

s1: introducing the waste water washed or rinsed by the washing machine into an electric flocculation container, and optionally carrying out electric flocculation reaction on the waste water;

s2: standing after treatment to precipitate flocculated slag and make the flocculated slag reach treatment water;

s3: filtering flocculate residues of the treated water through a filtering unit positioned at the bottom of the electric flocculation container to obtain circulating water;

s4: conveying the circulating water into a tub of the washing machine.

Preferably, the control method includes:

s5: and detecting the amount of the circulating water in the water containing barrel, and injecting purified water into the water containing barrel when the amount of the circulating water does not reach the preset water consumption of the subsequent rinsing until the preset water consumption is reached.

Preferably, the preset amount of water is positively correlated with the weight of the laundry at the time of the rinsing or washing.

Preferably, the control method includes the steps of: s6: a rinsing process is performed.

Preferably, the method further comprises:

s7: detecting the turbidity of the rinsing water after the last rinsing, and if the turbidity of the rinsing water is greater than a preset threshold value, returning to the step S1, wherein the rinsing water is taken as the washing or rinsing wastewater and introduced into the electroflocculation container; otherwise, the rinse water is drained out of the washing machine.

A second aspect of the present invention provides a laundry machine characterized by comprising a laundry treating unit having a tub, an electric flocculation treating unit communicating with a sewage discharge port of the tub, and a control unit for controlling the laundry treating unit and the electric flocculation treating unit;

the electric flocculation treatment unit comprises an electric flocculation container and a plate electrode arranged in the electric flocculation container, wherein the plate electrode is used for generating electric flocculation reaction in the electric flocculation container after being connected with an external power supply, the electric flocculation treatment unit also comprises a sewage discharge port and a water purification water outlet, the water purification water outlet is communicated with a water inlet of the clothes treatment unit, and a filtering unit is arranged at the water purification water outlet.

Preferably, the washing machine includes a detection unit for detecting whether water in the tub reaches a preset water usage amount, the detection unit being electrically connected with the control unit.

Preferably, the filtration unit is disposed outside of the electroflocculation vessel and at the bottom thereof.

Preferably, the washing machine comprises a turbidity sensing unit electrically connected with the control unit, and the control unit can determine whether the turbidity of the rinsing water after the latest rinsing is greater than a preset threshold value according to the turbidity sensing unit.

Preferably, an automatic flocculate collecting unit is arranged in the electric flocculation container.

Preferably, a water level sensor electrically connected with the control unit is arranged in the electric flocculation container.

In the invention, the washing program, the rinsing program and the sewage treatment program are combined, so that the cyclic utilization of the washing water is realized, and the sewage treatment device and the reuse water storage container are finally integrated, so that the washing machine has the advantages of simple structure, small volume, remarkable water-saving effect and low manufacturing cost. The washing machine provided by the invention purifies the washing water and the rinsing water by an electrochemical method on the basis of the existing washing mode, and the purified water is recycled, so that the aim of saving water is fulfilled.

Drawings

Fig. 1 is a flowchart of a method for controlling a wastewater recycling of a washing machine according to an embodiment of the present invention (for better understanding, the whole operation of the washing machine is shown).

Fig. 2 is a schematic structural view of a washing machine according to an embodiment of the present invention.

Description of the reference numerals

10-a laundry treating unit; 11-a water bucket;

12-a water inlet pipe; 13-a water inlet valve;

20-an electric flocculation treatment unit; 21-an electrocoagulation vessel;

22-an electrode plate; 23-an external power supply;

24-a sewage discharge port; 25-a purified water outlet;

26-a filtration unit; 27-a water level sensor;

28-sewage discharge pipe; 29-sewage drain valve;

30-a sewage inlet pipe; 31-a first control valve;

40-a sewage discharge pipe; 41-a third control valve;

50-a circulation line; 51-a second control valve;

52-suction unit.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the present invention, unless otherwise specified, use of directional terms such as "upper, lower, left, right, top, bottom" is generally made with respect to the orientation shown in the drawings or with respect to the positional relationship of the components with respect to each other in the vertical, or gravitational direction. The term "inside" and "outside" refer to the inside and the outside of the contour of each member itself. In addition, "a plurality" referred to in the present invention means two or more and includes two.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

According to one aspect of the present invention, the embodiment of the present invention provides a control method for recycling wastewater of a washing machine, comprising the steps of:

s1: introducing the waste water washed or rinsed by the washing machine into an electric flocculation container 21, and optionally carrying out electric flocculation reaction on the waste water;

s2: standing after treatment to precipitate flocculated slag and make the flocculated slag reach treatment water;

s3: filtering flocculate residues of the treated water through a filtering unit 26 positioned at the bottom of the electric flocculation container 21 to obtain circulating water; wherein, the filtering unit can be realized by a filter such as a filter screen;

s4: the circulating water is transferred into the tub 11 of the washing machine.

In the invention, the washing and rinsing sewage is treated and stored by adopting the electric flocculation method, and the treated water is recycled, so that the water can be effectively saved, and the washing machine does not need a sewage treatment device and a reuse water storage container at the same time, thereby simplifying the structure, reducing the volume of the washing machine and being convenient for transportation and use. When the electric flocculation treatment is used for purifying the laundry wastewater, ions generated by the electric flocculation form various hydroxyl complexes, polynuclear hydroxyl complexes or hydroxides, and react with stains and detergents in the washing water to generate floccules, and the floccules are coagulated and precipitated, so that water and pollutants are separated, and the purpose of purification is achieved.

Wherein, in order to further save water, preferably, the control method comprises the following steps:

s5: and detecting the amount of the circulating water in the water containing barrel 11, and injecting purified water into the water containing barrel 11 until the amount of the circulating water reaches the preset water consumption of subsequent rinsing. Wherein the preset amount of water is positively correlated with the weight of the laundry at the time of the rinsing or washing. That is, the preset amount of water can be determined according to the weight of the laundry to be rinsed or washed, and the heavier the laundry is, the more the preset amount of water is required. Additionally, the method further comprises: s6: a rinsing process is performed.

Correspondingly, the washing machine includes a detection unit for detecting whether the water in the tub 11 reaches a preset water usage amount (where the preset water usage amount includes a preset water usage amount for rinsing and a water usage amount for washing, which may be determined according to the weight of the laundry), and the detection unit is electrically connected to the control unit. If the amount of the circulating water detected by the detection unit reaches a preset water consumption amount for rinsing, the control unit controls to execute a rinsing program, and if the amount of the circulating water detected by the detection unit does not reach the preset water consumption amount for rinsing, purified water (such as tap water, reclaimed water and the like, wherein the purified water can be injected through a water inlet pipe 12 connected above a water containing barrel 11, and the water inlet amount is controlled through a water inlet valve 13 arranged on the water inlet pipe 12) is injected into the water containing barrel until the preset water consumption amount for rinsing is reached, and then the rinsing program is executed.

Further, in order to meet the requirements of different customers, the control method further comprises the following steps:

s7: detecting the turbidity of the rinsing water after the last rinsing, and if the turbidity of the rinsing water is greater than a preset threshold, returning to step S1, wherein the rinsing water is introduced into the electroflocculation container 21 as the washing or rinsing wastewater; otherwise, the rinse water is drained out of the washing machine.

Correspondingly, the washing machine comprises a turbidity sensing unit electrically connected with the control unit, and the control unit can determine whether the turbidity of the rinsing water after the latest rinsing is larger than a preset threshold value according to the turbidity sensing unit.

That is, after each rinsing, the laundry wastewater may be selectively subjected to the electrocoagulation treatment according to the turbidity of the rinsing water. Specifically, whether the turbidity of the rinsing water after the latest rinsing reaches a preset threshold value or not can be detected by the turbidity sensing unit, if the turbidity of the rinsing water is greater than the preset threshold value, the step S1 is returned to continue to perform a series of steps such as electrocoagulation, static treatment and filtration on the wastewater after the rinsing, and if the turbidity of the rinsing water is not greater than the preset threshold value, the rinsing water is discharged from the washing machine.

According to another aspect of the present invention, the washing machine provided by the embodiment of the present invention includes a laundry treating unit 10 having a tub 11, an electric flocculation treating unit 20 communicating with a sewage discharge port of the tub 11, and a control unit for controlling the laundry treating unit 10 and the electric flocculation treating unit 20; the electric flocculation treatment unit 20 comprises an electric flocculation container 21 and an electrode plate 22 arranged in the electric flocculation container 21, wherein the electrode plate 22 is used for connecting an external power supply 23, the electrode plate 22 is subjected to electric flocculation reaction in the electric flocculation container 21 after being connected with the external power supply 23, the electric flocculation treatment unit 20 is also provided with a sewage discharge port 24 and a purified water outlet 25, and the purified water outlet 25 is communicated with a water inlet of the clothes treatment unit 10.

Further, a filtering unit 26 is arranged at the purified water outlet 25 to separate flocculate and clean water from the circulating water circulating in the water tub, so that the purified circulating water after the electric flocculation treatment can flow back to the water tub. Wherein, for the convenience of replacement and installation, the filtering unit 26 is preferably disposed outside the electrocoagulation container 21 and at the bottom of the electrocoagulation container 21.

In the invention, the washing program, the rinsing program and the sewage treatment program are combined, so that the cyclic utilization of the washing water is realized, and the sewage treatment device and the reuse water storage container are finally integrated, so that the washing machine has the advantages of simple structure, small volume, remarkable water-saving effect and low manufacturing cost. The washing machine provided by the invention purifies the washing water and the rinsing water by an electrochemical method on the basis of the existing washing mode, and the purified water is recycled, so that the aim of saving water is fulfilled.

In addition, be provided with flocculation thing automatic collection unit in the electric flocculation treatment container 21, like this, the flocculation thing sediment that produces can in time be collected through flocculation thing automatic collection unit and get up to drain off in the electric flocculation treatment in-process to reduce the pollution of flocculation thing sediment to the electric flocculation treatment unit on the one hand, on the other hand reduces the burden of filter unit.

Wherein a water level sensor 27 electrically connected with the control unit is arranged in the electric flocculation container 21. Of course, the washing machine provided by the invention can also comprise other structures, such as an automatic detergent feeding unit and a clothes weight weighing unit which are electrically connected with the control unit. When the washing machine is used, the control unit sets a washing program, then obtains the weight of clothes through the clothes weight weighing unit, calculates washing parameters such as the washing water quantity, the detergent input quantity and the washing time through the terminal, and then starts the washing program. And the control unit can put in the detergent according to the automatic detergent putting unit.

In addition, referring further to fig. 2, the wastewater discharge port of the laundry treating unit 10 is communicated with the wastewater inlet port of the electrocoagulation treating unit 20 through a wastewater inlet pipe 30, the wastewater discharge port is connected with a wastewater discharge pipe 40 connected in parallel with the wastewater inlet pipe 30, a first control valve 31 is disposed on the wastewater inlet pipe 30, a third control valve 41 can be disposed on the wastewater discharge pipe 40, the purified water outlet 25 of the electrocoagulation treating unit 20 is communicated with the water inlet port of the laundry treating unit 10 through a circulation pipeline 50 to form a controllable circulation loop of the washing wastewater between the laundry treating unit 10 and the electrocoagulation treating unit 20, and a second control valve 51 is disposed on the circulation pipeline 50. Wherein, the water treated by the electric flocculation treatment unit 20 may be pumped into the tub 11 of the laundry treatment unit 10 by the pumping unit 52 on the circulation line 50.

Further, a sewage discharge pipe 28 may be connected to the sewage discharge port 24, and a sewage discharge valve 29 may be provided on the sewage discharge pipe 28. Wherein the sewage discharging pipe 28 may be connected to toilet water, a mop sink, etc., so that the water treated by the electrocoagulation processing unit 20 can be used for flushing a toilet, mopping a floor, etc. In addition, the control method provided by the invention can also realize the purification and the recycling of the kitchen wastewater and the bath wastewater.

For the convenience of understanding, as shown in fig. 1, the control method provided by the present invention will be described in detail by specific embodiments below:

in the embodiment, the washing process, the rinsing process and the electric flocculation sewage treatment process of the washing machine are combined, after the washing process is finished, the washing wastewater is discharged into the electric flocculation container 21 of the electric flocculation treatment unit 20 through the sewage inlet pipe 30, the electric flocculation reaction process is started simultaneously in the water discharge process, the electric flocculation treatment is performed for a period of time and then is kept stand, so that the flocculation residues are fully precipitated, the filtration, separation and purification are performed through the filtration unit 26 after the keeping stand is finished, the purified circulating water is pumped into the water containing bucket 11 through the pumping unit 52 (such as a pump) for recycling (the process can be regarded as a water saving mode in practical application, a user only needs to operate a water saving mode button on the washing machine), the rinsing water level of the water containing bucket 11 is measured through the detection unit, and if the preset rinsing water level is not reached, the water is fed into the water containing bucket 11 through the water inlet valve, then rinsing is performed (of course, after the washing process is finished, the washing wastewater may be discharged through the sewage discharge pipe 40 according to actual conditions, for example, the washing wastewater is dirty and the user does not want to use the washing wastewater for the rinsing process); after the rinsing process is finished, the rinsing sewage (also called as laundry wastewater) is discharged into the electrocoagulation container 21 of the electrocoagulation processing unit 20 through the sewage inlet pipe 30, the rinsing sewage is processed according to the steps, and then the rinsing sewage is circulated into the water bucket 11

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the individual specific technical features in any suitable way. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.