CN104947386A - Washing machine with flocculation and filtration module and control method - Google Patents

Abstract

The invention discloses a washing machine with a flocculation filtration module and a control method thereof. The washing machine includes a washing machine body and an independent flocculation filtration module. The water valve is respectively communicated with the treated water outlet of the flocculation filtration module and the external water inlet tap through the three-way pipeline. In the control method of the washing machine of the present invention, when water is supplied/replenished, the water is supplied from the external water inlet faucet through the three-way pipeline, the water inlet valve of the washing machine body to the outer tub of the washing machine; when water is circulated, the water is drained from the drain pipe of the washing machine body to flocculation filtration After the water is treated by the module, the water is circulated into the outer tub of the washing machine through the three-way pipeline and the water inlet valve of the washing machine body. The circulating water treatment equipment of the washing machine of the present invention adopts a flocculation filtration module structure, which is convenient for installation; it is connected by a three-way pipeline, and there is no need to improve the internal waterway of the existing washing machine, thereby reducing costs.

Description

Washing machine with flocculation filter module and control method

technical field

The invention relates to the field of washing machines, in particular to a washing machine with the function of circulating water treatment and a control method, especially a washing machine with a flocculation filter module and a control method.

Background technique

With the improvement of people's living standards, the washing machine has become one of the main household appliances in people's daily life. The washing process of the washing machine mainly includes several stages of washing, rinsing and drying. After entering the rinsing stage, in order to rinse off the stains and residual detergent, it is necessary to enter more water or perform more rinsing times to rinse the clothes, which will consume a lot of water resources, even if it is a water-saving drum washing machine. Clothes also need to be rinsed at least twice, and this process consumes at least 30L of tap water. Sometimes there are less stains on the clothes or less detergent is put in, and it may be rinsed clean twice, but because the user chooses 3 rinses, it will inevitably cause waste of water resources. For example, a 6Kg fully automatic washing machine usually rinses twice. The basic water consumption for rinsing is about 100 liters. How to save water and electricity while washing clothes has always been one of the focuses of consumers.

So far, there is no water purification and recycling device for household washing machines. Even so-called washing machines with water-saving functions generally install water storage tanks on the side of the washing machine, and use water pumps for water injection and drainage. Generally, water can be filled at one time. Rinse 3 times to save water. But the water after washing cannot be preserved, and the structure of the washing machine itself is complicated and huge, which is unfavorable for transportation, recycling and so on. Due to limitations in volume, structure, and flexibility, the original functions of the washing machine and the full play of the functions of the water-saving tank itself have been affected. In order to better save water resources on the basis of existing laundry methods, many manufacturers have invested a lot of research and development.

The existing washing machine has the function of circulating water, which only plays the role of filtering lint, washing evenly or adding ozone and heavy metal ion sterilization. Water consumption cannot be improved, and there is no fundamental improvement to washing.

For the recycling of laundry water, relevant patent documents have been consulted, such as the "Washing Machine Circulating Water Water Saving Device" with application number 200810072420.5, which is to input laundry water into a water tank for purification. In this invention, the washing water of the first pass is directly drained without purification, and the rinsing water of the second and third passes is purified for use in the next laundry.

Among the above-mentioned technologies, the "recycling water technology" is used after purifying the rinse water. This technology cannot recycle the first wash water (initial wash water). Use in laundry.

Most of the existing flocculation water treatment technologies are used in industry, the equipment is relatively large, and the requirements for water treatment are relatively strict, especially for tap water treatment; while the washing machine is used for washing clothes, it only needs to deal with washing additives such as washing powder and detergent, so It is unnecessary to directly reduce the cost of existing large-scale equipment. Therefore, it is necessary to develop a flocculation treatment water equipment that reduces costs and can realize the recycling of laundry water. In addition, the space of the existing washing machine is basically formed. It is also a challenge for technicians to install flocculation filtration water treatment equipment conveniently and quickly.

In view of this, the present invention is proposed.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a washing machine with a flocculation filter module with simple structure, convenient installation, low production cost and good water treatment effect.

Another object of the present invention is to provide a control method for the washing machine.

In order to solve the above-mentioned technical problems, the basic idea of the technical solution adopted by the present invention is: a washing machine with a flocculation filter module, the washing machine includes a washing machine body and an independent flocculation filter module, the flocculation filter module includes a shell, and is arranged in the shell. The flocculation unit, the filter unit, and the water inlet valve of the washing machine body are respectively communicated with the treated water outlet of the flocculation filter module and the external water inlet tap through the three-way pipeline.

Further, the three-way pipeline includes a first sub-pipeline, a second sub-pipeline and a third sub-pipeline, the first sub-pipeline is provided with a one-way valve, which communicates with an external water inlet faucet, and the second sub-pipeline The sub-pipelines are connected to the water inlet valve of the washing machine body, the third sub-pipeline is connected to the treated water outlet of the flocculation filtration module, the first sub-pipeline and the second sub-pipeline are connected to form an external water inlet channel, the second sub-pipeline and the third The sub-pipelines are connected to form a circulating water inlet waterway.

Further, the first sub-pipeline is provided with an external water inlet control valve, and the external water inlet control valve is arranged between the one-way valve and the external water inlet faucet.

Further, the first sub-pipeline communicates with the third sub-pipeline to form a cleaning water path for the flocculation and filtration module.

Further, the filter unit includes a filter container and a filter bucket arranged inside the filter container, the filter container is provided with a filter water inlet, the filter water inlet is connected to the flocculation unit, a filter screen is provided on the surface of the filter bucket, and one end of the filter bucket is sealed. The other end communicates with the treated water outlet.

Further, the flocculation filtration module is provided with a circulating treated water control valve to control the opening and closing of the treated water outlet. When the water inlet valve of the washing machine body is closed and the circulating treated water control valve is opened, the external water intake is reversed by the treated water outlet. The water enters the filter barrel to form the cleaning water circuit of the flocculation filter module.

Further, the filter barrel is rotatably arranged inside the filter container, the two ends of the filter barrel are pivotally connected to the filter container, and the end connected to the treated water outlet is a rotating water outlet joint, and the filter barrel is connected to the treated water outlet through the rotating water outlet joint. connected.

Further, the filter unit is also provided with a cleaning device for cleaning the filter screen from the outside of the filter bucket, and the circulating treatment water control valve is a three-way reversing valve, which controls the connection and treatment of the three-way pipeline and the cleaning device respectively. The water outlet is connected to the three-way pipeline, and the external water enters the cleaning device through the three-way pipeline to form the cleaning water circuit of the flocculation filter module. The water treated by the flocculation filter module is circulated from the treated water outlet to the washing machine body through the three-way pipeline. Inlet waterway.

Further, the filter container is also provided with a filter sewage outlet, and the filter sewage outlet is connected with the external sewage pipeline of the flocculation filtration module.

Further, the washing machine body is a drum washing machine, and the flocculation filter module is arranged above or below the washing machine body, or the washing machine body is a pulsator washing machine, and the flocculation filter module is arranged below or on the side of the washing machine body.

In the control method of the washing machine according to the present invention, when water is supplied/supplemented, the water is supplied from the external water inlet faucet through the three-way pipeline, the water inlet valve of the washing machine body to the outer tub of the washing machine;

When circulating the treated water, the water is drained from the washing machine body drain pipe to the flocculation filter module, and then the water is circulated into the outer tub of the washing machine through the three-way pipeline and the washing machine body water inlet valve.

Further, after the rinsing is completed, the flocculation filter module is cleaned, and the water is fed from the external water inlet tap through the three-way pipeline, and the treated water outlet is sent to the flocculation filter module to realize the cleaning of the flocculation filter module.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

1. The water after washing is clean water, and there is no problem of washing powder residue or unclean rinsing on the clothes, which is beneficial to the health of users;

2. Although the rinsing process of the present invention requires replenishment of water, compared with the existing rinsing water consumption, it realizes the maximum saving of water resources without affecting the washing efficiency;

3. Since the water discharged from the washing machine after washing basically does not contain washing powder or detergent, it can reduce environmental pollution;

4. The flocculation and filtration module realizes self-cleaning, eliminating the steps of manual cleaning and improving the degree of automation;

5. Water spray is used to drive the rotation of the filter barrel to realize rotation cleaning, the structure is simple, and the energy consumption and production cost are relatively reduced;

6. The circulating water treatment equipment of the washing machine of the present invention adopts a flocculation and filtration module structure, which is convenient for installation; it is connected by a three-way pipeline, and there is no need to improve the internal waterway of the existing washing machine, thereby reducing costs.

Description of drawings

Fig. 1 is a schematic diagram of a washing machine according to the present invention;

Fig. 2 is a schematic diagram of the tee pipeline connection structure of the present invention;

Fig. 3 is a schematic diagram of the flocculation filtration module of the present invention;

Fig. 4 is a schematic diagram of the filter unit of the present invention;

Fig. 5 is the schematic diagram of the A-A section of Fig. 4;

Fig. 6 is the B-B direction cross-sectional schematic diagram of Fig. 5;

Fig. 7 is a structural schematic diagram of the filtration unit and the flocculation unit of the present invention.

Detailed ways

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 7, the washing machine according to the present invention includes a washing machine body 1 and an independent flocculation filter module 2, the flocculation filter module 2 includes a shell 3, a flocculation unit 4 and a filter unit 5 that are connected to each other in the shell 3 The water inlet valve 11 of the washing machine body communicates with the treated water outlet 21 of the flocculation filter module 2 and the external water inlet tap 7 respectively through the three-way pipeline 6 .

The washing machine body 1 of the present invention is a drum washing machine (see Figure 1), and the flocculation filtration module 2 is arranged above or below the washing machine body 1, or the washing machine body 1 is a pulsator washing machine (not shown in the figure), and the flocculation filtration module 2 is arranged above or below the washing machine body 1. The module is arranged on the bottom or side of the washing machine body.

Embodiment one

As shown in Figure 2, the three-way pipeline 6 described in this embodiment includes a first sub-pipeline 61, a second sub-pipeline 62 and a third sub-pipeline 63, the first sub-pipeline 61 is provided with a one-way The valve 611 is connected with the external water inlet tap 7, the second sub-pipeline 62 is connected with the water inlet valve 11 of the washing machine body, the third sub-pipeline 63 is connected with the treated water outlet 21 of the flocculation filtration module 2, the first sub-pipeline 61 and the second The two sub-pipelines 62 are connected to form an external clean water inlet channel, and the second sub-pipeline 62 and the third sub-pipeline 63 are connected to form a water inlet channel for circulating treatment.

Further, the first sub-pipeline 61 is provided with an external water inlet control valve 612, and the external water inlet control valve 612 is arranged between the one-way valve 611 and the external water inlet faucet 7, and the one-way valve 611 can prevent The water in the flocculation filtration module 2 is returned to the external water inlet tap 7 .

Embodiment two

This embodiment is an improvement on the basis of Embodiment 1. The flocculation filtration module 2 has a cleaning function. In the three-way pipeline 6, the first sub-pipeline 61 and the third sub-pipeline 63 communicate to form a flocculation filtration Module cleaning waterway; when the rinsing is completed, the water inlet valve 11 of the washing machine body can be closed, and the external water inlet control valve 612 can be opened, and the water inlet is from the first sub-pipeline 61, the third sub-pipeline 63, and the treated water outlet 21 to the flocculation filtration module 2 for cleaning.

Embodiment three

As shown in Figure 4 and Figure 5, the filter unit 5 of the present invention comprises a filter container 51 and a filter bucket 52 located inside the filter container 51, the filter container 51 is provided with a filter water inlet 511, and the filter water inlet 511 is connected with the flocculation unit 4, the surface of the filter barrel 52 is provided with a filter screen (not shown in the figure), one end of the filter barrel 52 is sealed, and the other end communicates with the treated water outlet 21.

Embodiment four

As shown in Figure 2, the flocculation filtration module 2 is provided with a circulating treatment water control valve 22 to control the opening and closing of the treatment water outlet 21, when the water inlet valve 11 of the washing machine body is closed and the circulating treatment water control valve 22 is opened, The external water is fed back from the treated water outlet 21 into the filter barrel 52 to form the cleaning water path of the flocculation filter module. The cleaning water path is flushed from the inside to the outside, that is, the filter screen on the surface of the filter barrel is backwashed by the clean water in the filter barrel 52. Flush dirt such as flocs attached to the filter net into the filter container 51 .

Embodiment five

As shown in Figure 5, the filter barrel 52 described in this embodiment is rotatably arranged inside the filter container 51, the two ends of the filter barrel 52 are pivotally connected to the filter container 51, and the end communicating with the treated water outlet 21 is a rotating outlet joint 521 , the filter barrel 52 communicates with the treated water outlet 21 through the rotating water outlet joint 521 .

The water flow path of the filter unit 5 to filter the flocculated water is as follows: the water inlet 511 enters the flocculated water into the filter container 51, the water in the filter container 51 is filtered from the outside of the filter barrel 52 to the inside of the filter barrel 52, and the filtered water is passed from one end of the filter barrel 52 The rotary water outlet joint 521 and the treated water outlet 21 are discharged to the main body 1 of the washing machine.

Embodiment six

As shown in Figures 4 to 6, the filter unit 5 is also provided with a cleaning device 8 for cleaning the filter screen from the outside of the filter bucket. Clean the filter surface. The circulating treated water control valve 22 is a three-way reversing valve, which respectively controls the connection between the three-way pipeline 6 and the cleaning device 8 and the connection between the treated water outlet 21 and the three-way pipeline 6, and the external water inlet faucet 7 enters water Through the three-way pipeline 6 to the cleaning device 8, the flocculation and filtration module cleaning waterway is formed, and the water treated by the flocculation and filtration module 2 is passed through the three-way pipeline 6 to the washing machine body 1 to form a circulating water inlet waterway.

The cleaning device 8 of the present invention is a spray head, installed on the filter container 51, and the direction of spraying water acts on the surface of the filter barrel 52 to drive the filter barrel 52 to rotate. The spraying direction of the nozzle can be set to deviate from the axis of rotation of the filter barrel 52 to rotate obliquely to the circumferential surface of the filter barrel, close to the tangential direction of the filter barrel 52, and act on the filter screen surface to realize strong cleaning.

The test found that the cleaning of the filter barrel in the rotating state is cleaner and faster than that in the static state, and the cleaning efficiency can be increased by more than 60%.

Embodiment seven

As shown in FIG. 6 , the surface of the filter barrel 52 according to this embodiment is provided with paddles 522 corresponding to the nozzles, and the paddles 522 are arranged corresponding to the spraying direction of the nozzles to transmit the power of the water flow to drive the filter mechanism to rotate.

Further, there are a plurality of paddles 522, which are distributed along the circumference and axial direction of the filter tub 52, corresponding to the spraying direction of the nozzle.

Embodiment eight

As shown in Figure 5, the axial direction L of the rotation of the filter barrel 52 in this embodiment and the horizontal plane R have an inclined angle α, 0≤α≤30°, preferably 1°≤α≤10°, most preferably 1 °≤α≤3°, the rotating water outlet joint 521 is located at the lower end of the filter barrel 52; by tilting or horizontally placing the filter barrel 52, not only can the filtering area be increased, the filtering speed can be accelerated, but also the filter net can be cleaned.

This structure can be realized in the following ways: 1. The filter container 51 is arranged horizontally, and the filter barrel 52 is arranged obliquely; 2. The filter container 51 and the filter barrel 52 are arranged obliquely together, and a support base 53 is provided below the filter container 51 (see FIG. 4 ). .

Embodiment nine

As shown in Figure 7, the flocculation unit 4 of the present invention is provided with a flocculation water inlet 41, a flocculant input port 42 and a flocculation water outlet 43, the flocculation water inlet 41 is connected with the drain pipe of the washing machine body, and the flocculation water outlet 43 is connected with the filter container The filtered water inlet 511 of 51 communicates. A control valve 45 is provided between the flocculation water outlet 43 and the filter water inlet 511 , and the water communication between the flocculation unit 4 and the filtration unit 5 is controlled by the control valve 45 .

Embodiment ten

The flocculation unit 4 of the present invention is also provided with a sewage outlet of the flocculation unit (not shown in the figure), and the cleaning water of the filter unit continues to flow back into the flocculation unit 4 from the filter water inlet 511 and the flocculation outlet 43 to rinse the inside of the flocculation unit 4 , discharged to the outside from the sewage outlet of the flocculation unit.

Embodiment Eleven

The difference between this embodiment and Embodiment 10 is that the water for cleaning the filter unit is directly discharged from the filter container 51, and the filter container 51 is also provided with a filter sewage outlet 512 (see Figure 4 and Figure 5), and the filter sewage outlet 512 is connected with the flocculation The external sewage pipeline of the filter module is connected, and the sewage for cleaning the filter screen is directly discharged from the filter sewage outlet 512 .

The process of cleaning the filter unit is as follows: the filter water inlet 511 is closed, the treated water outlet 21 is closed, the filter sewage outlet 512 is opened, the external water inlet faucet 7 is opened, the water is fed from the three-way pipeline and the direction is changed by the three-way reversing valve, and the self-cleaning device 8. Spray water to rinse the filter screen on the surface of the filter bucket 52. The filter bucket 52 rotates and agitates the water to clean the filter container 51 inner wall.

Embodiment 12

In the control method of the washing machine of the present invention, when water is supplied/replenished, the water is supplied from the external water inlet faucet 7 through the three-way pipeline 6, the water inlet valve 11 of the washing machine body to the outer tub 12 of the washing machine;

When circulating the treated water, the water is drained from the drain pipe of the washing machine body to the flocculation filter module 2, and then the water is circulated to the outer tub 12 of the washing machine through the three-way pipeline 6 and the water inlet valve 11 of the washing machine body.

After the rinsing is completed, the flocculation filter module 2 is cleaned, and the water is fed from the external water inlet faucet 7 through the three-way pipeline 6 and the treated water outlet 21 to the flocculation filter module 2 for cleaning.

Specific working process: select the laundry program, set the flocculation times on the flocculation module according to the set rinsing times, the washing machine automatically senses the weight of the clothes to determine the water intake, the external water inlet control valve 612 and the washing machine body water inlet valve 11 are opened, because there is no The washing water enters the flocculation and filtration module 2, so the circulating treatment water control valve 22 does not operate and is in a closed state. The water in the external water inlet faucet 7 enters the outer tub 12 of the washing machine through the three-way pipeline 6, and the water enters the set water level. The external water inlet control valve 612 is closed, and the washing starts. After the washing is completed, the washed sewage enters the flocculation unit 4 of the flocculation filter module through the drain pipe through the flocculation water inlet 41, and the flocculation water is obtained after adding flocculant in the flocculation unit 4 and stirring. , the flocculation water enters the filter container 51, and in the filter container 51, clean water without impurities is obtained through the filtering link of the surface filter screen of the filter barrel 52, and the circulating water control valve 22 is opened, and then these clean water are returned to the filter container by the three-way pipeline 6. The outer tub 12 of the washing machine body 1 is used for subsequent washing and rinsing processes. After the clean water in the filter container 51 enters the outer tub 12, the circulating treatment water control valve 22 is closed. If the washing machine detects that the water level is not enough, the external water intake control valve 612 can be opened to replenish water through the external water intake faucet 7. After the flocculation and filtration module has flocculated the set number of times, the last rinsing water is discharged into the flocculation unit to clean the flocculation unit. The cleaned water is discharged from the sewage outlet of the flocculation unit, or discharged into the filter container 51 and discharged from the filter sewage outlet 512 Close the control valve 45 between the washing machine body water inlet valve 11, the filter unit and the flocculation unit, open the external water inlet control valve 612, the circulating water control valve 22, clean the filter unit, and then discharge to the outside by the filter sewage outlet 512.

The implementations in the above examples can be further combined or replaced, and the examples are only descriptions of preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention. Various changes and improvements to the technical solutions of the present invention made by those skilled in the art belong to the protection scope of the present invention.

Claims (13)

1. one kind has the washing machine of flocculation filtration module, it is characterized in that: this washing machine comprises washing machine body and independently flocculation filtration module, flocculation filtration module comprises shell, is located at the flocculation unit and filter element that interconnect in shell, and washing machine body water intaking valve is communicated with outside hose of intaking with the process water out of flocculation filtration module respectively by triplate line.

2. the washing machine with flocculation filtration module according to claim 1, it is characterized in that: described triplate line comprises the first sub-pipeline, the second sub-pipeline and the 3rd sub-pipeline, check valve is provided with in first sub-pipeline, be communicated with outside hose of intaking, second sub-pipeline connection washing machine body water intaking valve, the process water out of the 3rd sub-pipeline connection flocculation filtration module, first sub-pipeline and the second sub-pipeline communicate form outside enter clear water water route, the second sub-pipeline and the 3rd sub-pipeline communicate form circular treatment water inlet water route.

3. the washing machine with flocculation filtration module according to claim 2, is characterized in that: be provided with outside water inlet control valve in the described first sub-pipeline, and this outside water inlet control valve is located between check valve and outside water inlet hose.

4. the washing machine with flocculation filtration module according to claim 2, is characterized in that: the described first sub-pipeline and the 3rd sub-pipeline communicate and form flocculation filtration module cleaning water route.

5. the washing machine with flocculation filtration module according to claim 1, it is characterized in that: described filter element comprises filtering container and is located at the filter vat of filtering container inside, filtering container is provided with filtered water inlet mouth, filtered water inlet mouth is communicated with flocculation unit, filter vat surface is provided with screen pack, filter vat one end seals, and the other end communicates with process water out.

6. the washing machine with flocculation filtration module according to claim 5, it is characterized in that: described flocculation filtration module is provided with circular treatment water control valve, the opening and closing of control treatment water out, close at washing machine body water intaking valve, circular treatment water control valve open mode, outside water inlet is formed flocculation filtration module cleaned water route by anti-water inlet of process water out to filter vat.

7. the washing machine with flocculation filtration module according to claim 5, it is characterized in that: filtering container inside is located at rotationally by described filter vat, filter vat two ends and filtering container pivotally connected, the one end communicated with process water out is rotary water-out joint, and filter vat is communicated with process water out by rotary water-out joint.

8. the washing machine with flocculation filtration module according to claim 7, it is characterized in that: described filter element is also provided with the cleaning device from filter vat exterior washings screen pack, described circular treatment water control valve is three-way diverter valve, control triplate line and the connected sum process water out of cleaning device and being communicated with of triplate line respectively, outside water inlet forms flocculation filtration module cleaning water route by triplate line to cleaning device, and the water after flocculation filtration resume module forms circular treatment water inlet water route by processing water out by triplate line to washing machine body.

9. the washing machine with flocculation filtration module according to claim 8, is characterized in that: described cleaning device is utilize water inlet current to drive filter vat to rotate and the water spray drives structure of cleaning showers screen pack.

10. the washing machine with flocculation filtration module according to claim 5, is characterized in that: described filtering container is also provided with filtration sewage draining exit, filters sewage draining exit and is communicated with the outside blowoff line of flocculation filtration module.

11. according to the arbitrary described washing machine with flocculation filtration module of claim 1-10, it is characterized in that: described washing machine body is roller washing machine, flocculation filtration module is located at above or below washing machine body, or, washing machine body is rotary drum washing machine, and flocculation filtration module is located at below or the side of washing machine body.

12. 1 kinds as arbitrary in claim 1-11 as described in the control method of washing machine, it is characterized in that: during water inlet/moisturizing, intake through triplate line, washing machine body water intaking valve to outer barrel of washing machine by outside hose of intaking;

During circular treatment water, circulate water inlet to outer barrel of washing machine through triplate line, washing machine body water intaking valve again by after washing machine body drainpipe draining to flocculation filtration resume module water.

13. control methods according to claim 12, is characterized in that: rinsing is complete, cleaning flocculation filtration module, and intake by outside water inlet hose realizes the cleaning of flocculation filtration module in triplate line, process water out to flocculation filtration module.