WO2017121346A1

WO2017121346A1 - Flocculation stirring device of washing machine, washing machine and control method of washing machine

Info

Publication number: WO2017121346A1
Application number: PCT/CN2017/070946
Authority: WO
Inventors: 张江涛; 李冬; 车敏; 赵志强; 邓金柱; 劳春峰
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2016-01-12
Filing date: 2017-01-12
Publication date: 2017-07-20
Also published as: CN106958122B; CN106958122A

Abstract

A flocculation stirring device of a washing machine, a washing machine and a control method of a washing machine. The flocculation stirring device is provided with an upper stirring impeller (3) and a lower stirring impeller (4) that are coaxial, the spacing between the upper stirring impeller (3) and the lower stirring impeller (4) being defined such that the stirring effect of the stirring impellers to the washing water in a reaction tub (1) is better, improving the reaction between a flocculant and the washing water. When the reaction tub (1) is being washed, clean water is injected into the reaction tub (1) simultaneously from a circulating inlet (5) and a flocculant input opening (6); the distance between either the circulating inlet (5) or the flocculant input opening (6) and a stirring shaft (2) is less than the radius of the upper stirring impeller (3), such that the water injected from the circulating inlet (5) and from the flocculant input opening (6) is, when flowing down, within the rotation range of the stirring impellers; the clean water flowing down from above is struck by means of the stirring impellers in rotation and thus thrown onto the wall of the reaction tub (1), such that the reaction tub (1) is washed more sufficiently and thoroughly. The water is thrown onto the inner wall of the reaction tub (1) at different heights by means of the upper and lower stirring impellers, so as to achieve the effect of washing the wall of the tub at different heights.

Description

Flocculation stirring device for washing machine, washing machine and washing machine control method

Technical field

The invention relates to a flocculation stirring device for a washing machine, a washing machine and a washing machine control method, and belongs to the field of washing machine devices and control methods.

Background technique

The washing machine flocculates the washed washing water in the flocculation reaction vessel and re-inputs the purified water into the washing tub for washing. In order to make the flocculation reaction of the washing water in the flocculation reaction vessel more sufficient, it is necessary to rationally design the flocculation stirring device. In the patent application with the application number 201410120017.0, the hydrophobic impeller mounted on the agitating shaft is one, and since there is only one hydrophobic impeller, the liquid agitation effect in the flocculation reaction vessel is limited, so that the liquid and the flocculating agent in the flocculation reaction vessel are made. The degree of mixing is limited, and the effect of flocculation purification of washing water is limited. When the flocculation reaction vessel is cleaned by the influent water, the stirring motor drives the water impeller to rotate at a high speed. Due to the centrifugal force of the water impeller, the influent water is sucked to the inner wall of the flocculation reaction vessel at a certain speed for cleaning, but also because there is only one impeller impeller. This results in a limited range of drowning heights, resulting in low flushing efficiency for the flocculation reaction vessel.

The present invention has been made in view of the above.

Summary 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 flocculation stirring device for a washing machine, a washing machine and a washing machine control method, which can make the washing water flocculation reaction more fully and make the reaction container clean more thoroughly.

In order to solve the above technical problems, the basic idea of adopting the technical solution of the present invention is:

A flocculation stirring device for a washing machine, comprising a reaction barrel and a stirring paddle installed in the reaction barrel, the stirring paddle includes an upper agitating paddle and a lower agitating paddle coaxially disposed on the agitating shaft, and a paddle of the upper agitating paddle and the lower agitating paddle The top and bottom are overlapped; a circulation inlet and a flocculant injection port are arranged at the top of the reaction barrel, and a circulation outlet and a drainage port are arranged at the lower part of the reaction barrel, and the distance between the upper stirring paddle and the lower stirring paddle is 1/3-1/ of the overall height of the reaction barrel. 8.

Further, the distance between the lower agitating paddle and the bottom of the reaction barrel is 1/5-1/10 of the overall height of the reaction barrel.

Further, the middle and upper portions of the reaction barrel are straight barrels, and the bottom portion is an inverted frustum-shaped structure.

Further, the angle of inclination of the tapered surface of the inverted frustum-shaped structure at the bottom of the reaction barrel to the vertical direction is α, and α is between 5° and 80°.

Further, the diameter D of _the stirring blade: _the D = D- (5 ~ 200) mm, the diameter D of _the stirring blade: _at D = [DH / (7tanα) ] - (2 ~ 150) mm, wherein , D is the diameter of the reaction barrel; α is the inclination angle of the cone surface of the inverted frustum-shaped structure at the bottom of the reaction barrel and the vertical direction; H is the overall height of the reaction barrel.

Further, the front and rear side walls of the reaction barrel are curved surfaces, and the left and right side walls are flat, and the two side walls connected to each other are smoothly transitioned.

Further, the circulation inlet and the flocculant injection port provided at the top of the reaction barrel are both smaller than the upper stirring blade radius. The circulation inlet and the flocculant injection port are both disposed on the line connecting the two side walls of the interconnecting smooth transition to the stirring shaft.

A washing machine having the aforementioned flocculation stirring device.

The control method of the washing machine, in the washing water flocculation process, the washing water in the washing tub of the washing machine is injected into the reaction barrel through the circulating inlet of the reaction barrel, and the flocculating agent is put into the reaction barrel through the floc filling port, the reaction barrel When the water level in the water reaches the first set water level, the stirring paddle rotates, and when the water level in the reaction barrel reaches the second set water level, the water inlet is stopped. After the flocculating agent and the washing water complete the flocculation reaction, the motor stops running, and the fresh water obtained after the flocculation treatment is re-delivered into the washing tub to wash the laundry or transported to the water container; when the water in the reaction tank drops to the third setting After the water level, the drain pump stops running and the floc after the reaction remains in the reaction tank.

Further, in the process of cleaning the reaction tank, the water is injected into the reaction tank through the circulation inlet and the flocculant injection port, and the motor is turned on to rotate the upper and lower stirring blades, and when the water level reaches the fourth set water level, the water is stopped. After the stirring paddle is driven by the motor for a period of time, the drain port is opened, and the sewage is discharged outside the reaction barrel to complete the cleaning of the reaction barrel.

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

The invention relates to a flocculation and agitation device of a washing machine, a washing machine and a washing machine control method. In the flocculation and agitating device of the washing machine, a vertical agitating paddle and a lower agitating paddle are arranged, and a spacing between the upper agitating paddle and the lower agitating paddle is provided. The restriction is made such that the stirring paddle has a better agitation effect on the washing water in the reaction tank, and the reaction between the flocculant and the washing water is enhanced. When cleaning the reaction tank, the purified water is injected into the reaction tank from the circulation inlet and the flocculant injection port, and the distance between the circulation inlet and the flocculant injection port and the stirring shaft is smaller than the radius of the upper stirring blade, so that the circulation inlet and the flocculation are obtained. When the water entering the solution inlet is under the rotation range of the stirring blade, the rotating water is used to hit the purified water flowing down from the top, and the purified water is hit by the stirring paddle to the reaction barrel wall, so that the reaction barrel is Cleaning is more complete and thorough. The upper and lower agitating paddles simmer the water onto the inner wall of different heights of the reaction barrel to achieve the function of cleaning the wall of different heights.

The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

DRAWINGS

1 is a half cross-sectional structural view of a flocculation stirring device of a washing machine of the present invention;

2 is a schematic view showing the assembly structure of the stirring paddle and the stirring shaft;

3 is a schematic view showing the outline of a flocculation stirring device of a washing machine of the present invention;

Figure 4 is a plan view of a flocculation stirring device of a washing machine of the present invention;

Fig. 5 is a half cross-sectional structural view showing a flocculation stirring device of a washing machine of the present invention.

1. Reaction barrel 2. Mixing shaft 3. Upper stirring paddle 4. Lower stirring paddle 5. Recirculation inlet 6. Flocculant injection port 7. Drainage port 8, circulation outlet 9, lower support 10, overflow port 11, reaction barrel Upper cover 12, motor.

detailed description

Embodiment 1

As shown in FIG. 1 and FIG. 2, the flocculation stirring device of the washing machine of the present invention comprises a reaction tank 1 and a stirring paddle installed in the reaction tub 1. The stirring paddle includes an upper agitating paddle 3 coaxially disposed on the agitating shaft 2 and The lower agitating paddle 4, the upper agitating paddle 3 and the lower agitating paddle 4 are vertically overlapped, that is, the deflection angle between the upper agitating paddle 3 and the lower agitating paddle 4 is 0; at the top of the reaction tank 1 is provided a washing machine The washing water in the washing tub enters the circulation inlet 5 of the reaction barrel and the flocculant injection port 6 into which the flocculating agent is placed in the reaction barrel, and the distance between the circulation inlet 5 and the flocculating agent injection port 6 and the stirring shaft 2 is smaller than that of the upper stirring paddle radius. The washing water in the washing tub of the washing machine is transported through the pipeline from the circulating inlet 5 at the top of the reaction tank 1 into the reaction tank 1, and the flocculating agent is put into the reaction tank 1 from the flocculating agent injection port 6, and the washing water is flocculated in the reaction tank 1. The flocculated purified water is discharged from the circulation outlet 8 at the lower portion of the reaction tank 1 and piped to the washing tub of the washing machine, and the flocs are discharged from the drain port 7 at the lower portion of the reaction tank 1.

In order to make the liquid in the reaction tank 1 discharge more easily, and to reduce the residual in the barrel, the middle and upper portions of the reaction barrel 1 are straight barrels, the bottom of the reaction barrel 1 is a structure that is gradually reduced downward, and the bottom portion may be an inverted frustum-shaped structure, or The bottom is a curved structure.

As shown in FIG. 5, the angle of inclination of the tapered surface of the inverted truncated cone structure at the bottom of the reaction tank 1 is α, and α is between 5° and 80°.

In order to make the liquid entering the reaction barrel more uniformly agitated, the washing water can be flocculated better with the flocculating agent, and the number of the upper agitating paddle 3 and the lower agitating paddle 4 is the same, and one to four blades are used. In the structure, when there are more than one blade, the plurality of blades are uniformly arranged around the stirring shaft, and the blades are vertically arranged.

The distance between the upper stirring paddle 3 and the lower agitating paddle 4 is 1/3 to 1/8 of the overall height of the reaction tub 1.

The distance between the lower agitating paddle 4 and the bottom of the reaction tub 1 is 1/5-1/10 of the overall height of the reaction tub 1.

The stirring blade _diameter D 3 is: = D- (5 ~ 200) mm _on D,

The diameter D of _the stirring blade of: = _the D [DH / (7tanα)] - (2 ~ 150) mm,

Wherein D is the diameter of the reaction barrel; α is the inclination angle of the cone surface of the inverted truncated cone structure at the bottom of the reaction barrel and the vertical direction; H is the overall height of the reaction barrel.

The paddle diameter is 50-500mm, the width is 5-100mm; the lower paddle diameter is 50-400mm, which is slightly smaller than the diameter of the upper paddle, and the width is 5-100mm, which is the same as the width of the upper paddle. And the upper and lower stirring blades are longitudinally spaced 10-1000 mm, and the lower stirring paddle is 10-500 mm away from the bottom of the reaction barrel.

Take the reaction barrel diameter of 350mm and the overall height of 400mm as an example: the upper stirring paddle 3 has a diameter of 250mm and a width of 70mm; the lower agitating paddle has a diameter of 200mm and a width of 70mm. And the longitudinal spacing of the upper and lower agitating blades is 100mm. The distance between the lower stirring paddle and the bottom of the reaction barrel is 70 mm.

As shown in FIGS. 3 and 4, the front and rear side walls of the reaction tank 1 are curved surfaces, and the left and right side walls are flat, and the two side walls connected to each other are smoothly transitioned. Such a structure produces four structural protrusions that transition from a circular arc to a plane that will act to lift the water flow. The water flow driven by the agitating paddle generates a sudden change when flowing through the four positions, so that the water flow generates an upward or downward force, which better drives the water flow to generate an up and down vortex, thereby avoiding the circular reaction bucket water flow in the circular area. Flowing, there is no power to drive the flow of water up and down.

The structure of the upper and lower agitating paddles and the relative positional dimensions, as well as the front and rear side walls of the reaction tank 1 are curved surfaces, the left and right side walls are flat, and the two side walls connected to each other are smoothly transitioned to ensure the lowest bottom of the reaction barrel 1. The water flow vortexes upward, and the upper water flow vortex downwards. The water flow can be stirred up and down in the middle position of the two paddles to generate a large vortex, so that the liquid flow in the reaction tank is more fully mixed, and the flocculant and the wash water are strengthened. The reaction avoids the normal in-line stirring paddle that does not cause the water flow to oscillate up and down during agitation.

In order to avoid interference, the circulation inlet and the flocculant injection port are both disposed on the line connecting the smooth transitions of the two side walls to the agitating shaft. Such a structure maximizes the distance between the circulation inlet and the flocculant injection port.

The circulation inlet 5 is connected to the water purification water source, and the flocculant injection device connected to the flocculant injection port 6 is also connected to the purified water source. Therefore, when the reaction tank 1 is cleaned, the circulation inlet 5 and the flocculant injection port 6 are simultaneously introduced into the reaction tank 1. The purified water is injected, and the distance between the circulation inlet 5 and the flocculant injection port 6 and the agitating shaft 2 is smaller than the upper agitating blade radius, so that the agitating paddle is located when the water entering from the circulation inlet 5 and the flocculating agent inlet 6 flows downward. Within the range of rotation, the purified water flowing down from the top is blown by the rotating stirring paddle, and the purified water is hit by the stirring paddle to the wall of the reaction barrel, so that the cleaning of the reaction barrel is more complete and thorough.

Embodiment 2

The washing machine in this embodiment is equipped with the washing tub and the flocculation stirring device described in the first embodiment. In the flocculation stirring device, the upper and lower agitating paddles and the lower agitating paddle are arranged, and the spacing between the upper agitating paddle and the lower agitating paddle is limited, so that the agitating paddle has a better agitation effect on the washing water in the reaction barrel. Strengthen the reaction of flocculant with wash water. When cleaning the reaction tank, the purified water is injected into the reaction tank from the circulation inlet and the flocculant injection port, and the distance between the circulation inlet and the flocculant injection port and the stirring shaft is smaller than the radius of the upper stirring blade, so that the circulation inlet and the flocculation are obtained. When the water entering the solution inlet is under the rotation range of the stirring blade, the rotating water is used to hit the purified water flowing down from the top, and the purified water is hit by the stirring paddle to the reaction barrel wall, so that the reaction barrel is Cleaning is more complete and thorough. The upper and lower agitating paddles simmer the water onto the inner wall of different heights of the reaction barrel to achieve the function of cleaning the wall of different heights.

Embodiment 3

The washing machine control method of the embodiment is implemented by the washing machine of the second embodiment.

The washing water from the washing tub of the washing machine enters the reaction tub 1 through the circulation inlet 5 of the reaction tub 1, and at this time, the drain port 7 of the reaction tub 1 and the drain pump of the circulation outlet are closed, and the washing water entering the reaction tub 1 is closed. Will not be discharged. When the liquid level sensor in the reaction tank 1 detects that the water level in the reaction tank 1 reaches the first set water level, the motor starts to drive the stirring shaft 2 to run in one direction or forward and reverse rotation, the rotation speed is 10-1000 r/min, and the flocculant It is put into the reaction tank 1 through the flocculant injection port 6, and the circulation inlet 5 is still kept in the water inlet state. When the liquid level sensor in the reaction tank 1 detects that the water level in the reaction tank 1 reaches the second set water level, the stop is stopped. Water is supplied from the washing tub to the reaction tub 1. The motor continues to run for 1-5 min. When the flocculant and the washing water complete the flocculation reaction, the motor stops running. After the static 0-5 min time, the drain pump connected to the circulation outlet 8 of the reaction tank 1 is opened, and the water obtained after the flocculation treatment is turned off. Re-feed into the washing tub to wash the laundry or transport it to the water container to fill the water. At this time, in order to ensure that the flocculated material after flocculation cannot enter the washing tub or the water container, when the water level sensor detects that the water in the reaction tank drops to the third set water level, the drain pump stops running, and the flocculation after the reaction is performed. The object remains in the reaction tank 1, and is discharged from the drain port 7 from the drain port 7 when the reaction tank 1 is subsequently cleaned.

At the end of one washing of the laundry, the flushing function is automatically activated, and the washing water (or tap water) starts to enter the reaction tub 1 through the circulation inlet 5 and the flocculating agent inlet port 6, and the motor is turned on to make the upper and lower stirring blades follow the positive or positive Reversed state operation. At this time, the motor speed is 10-1500r/min. Both the circulation inlet 5 and the flocculant injection port 6 are smaller than the upper agitating blade 2, and are located in the rotation range of the agitating paddle when the water entering from the circulation inlet 5 and the flocculating agent inlet 6 is under the rotation range of the agitating paddle. The stirring paddle hits the purified water flowing down from the top, and the purified water is hit by the stirring paddle to the wall of the reaction barrel, so that the cleaning of the reaction barrel is more complete and thorough. Since the water flow is injected into the reaction tank from the top to the bottom, in the falling process, the upper and lower agitating paddles smash the water to the inner wall of different heights of the reaction barrel 1 to achieve the function of cleaning the barrel wall, at this time, the drain port 7 and The circulation outlets 8 are all closed.

When the water level reaches the fourth set water level, the water is stopped. After the stirring paddle is operated for a period of time driven by the motor, the drain port 7 is opened, and the sewage is discharged outside the reaction tub 1 to complete the cleaning of the reaction tub 1.

The embodiments of the present invention may be further combined or substituted, and the embodiments are merely described for the preferred embodiments of the present invention, and are not intended to limit the scope and scope of the present invention. Various changes and modifications made by those skilled in the art to the technical solutions of the present invention are within the scope of the present invention.

Claims

A flocculation stirring device for a washing machine, comprising: a reaction barrel and a stirring paddle installed in the reaction barrel; the stirring paddle comprises an upper agitating paddle and a lower agitating paddle coaxially arranged on the agitating shaft, and the upper agitating paddle and the lower agitating paddle The paddles of the paddle are overlapped up and down; a circulation inlet and a flocculant injection port are arranged at the top of the reaction barrel, and a circulation outlet and a drain port are arranged at the lower part of the reaction barrel.

The distance between the upper stirring paddle and the lower agitating paddle is 1/3-1/8 of the overall height of the reaction barrel.
A flocculation and agitating device for a washing machine according to claim 1, wherein the distance of the lower agitating paddle from the bottom of the reaction tub is 1/5-1/10 of the overall height of the reaction tub.
A flocculation and agitating device for a washing machine according to claim 1, wherein the middle and upper portions of the reaction barrel are straight barrels, and the bottom portion is an inverted truncated cone structure.
A flocculation and agitating device for a washing machine according to claim 1, wherein the angle of inclination of the tapered surface of the inverted truncated cone-shaped structure at the bottom of the reaction bucket is α, α is between 5° and 80°.
A washing machine according to claim 4, wherein the flocculation stirring apparatus, characterized in that: the upper impeller diameter D: = D- (5 ~ 200) mm on D,

The diameter D of the stirring blade of: = the D [DH / (7tanα)] - (2 ~ 150) mm,

Wherein D is the diameter of the reaction barrel; α is the inclination angle of the cone surface of the inverted truncated cone structure at the bottom of the reaction barrel and the vertical direction; H is the overall height of the reaction barrel.
The flocculation and agitating device for a washing machine according to claim 4, wherein the front and the rear side walls of the reaction barrel are curved surfaces, and the left and right side walls are flat, and the two side walls connected to each other are smoothly transitioned.
A flocculation and agitating device for a washing machine according to claim 1, wherein a circulation inlet and a flocculating agent inlet are provided at the top of the reaction tank, and the distance between the two is smaller than the upper agitating blade radius, the circulation inlet and the The flocculant injection openings are all arranged on the line connecting the smooth transition of the two side walls and the stirring shaft.
A washing machine comprising the flocculation stirring apparatus according to any one of claims 1 to 7.
The control method of the washing machine is characterized in that: in the process of flocculation of the washing water, the washing water in the washing tub of the washing machine is injected into the reaction barrel through the circulating inlet of the reaction barrel, and the flocculating agent is put into the reaction barrel through the floc filling port. Inside, when the water level in the reaction barrel reaches the first set water level, the stirring paddle rotates, and when the water level in the reaction barrel reaches the second set water level, the water inlet is stopped. When the flocculating agent and the washing water complete the flocculation reaction, the motor stops running, and the motor stops. The fresh water obtained after the flocculation treatment is re-delivered into the washing tub to wash the laundry or transported to the water container; when the water in the reaction tank drops to the third set water level, the drain pump stops running, leaving the floc after the reaction Inside the reaction tank.
The control method of a washing machine according to claim 9, wherein during the process of cleaning the reaction tank, the water is injected into the reaction tank through the circulation inlet and the flocculant injection port, and the motor is turned on to make the upper and lower stirring blades. Rotate, when the water level reaches the fourth set water level, the water is stopped. After the stirring paddle is driven by the motor for a period of time, the drain port is opened, and the sewage is discharged outside the reaction barrel to complete the cleaning of the reaction barrel.