CN214734765U

CN214734765U - Water purifying equipment

Info

Publication number: CN214734765U
Application number: CN202023183729.7U
Authority: CN
Inventors: 张量; 李友铃; 周健; 周曌; 董小虎; 曾浈
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-11-16
Anticipated expiration: 2030-12-25

Abstract

The application relates to a water purification unit. The apparatus comprises: the ozone generator comprises a multiway valve, a main cavity and an ozone generating device, wherein the multiway valve is connected to the main cavity in a matched mode and is communicated with an inner cavity of the main cavity in a fluid mode, the multiway valve is provided with an air inlet and a water inlet, and the ozone generating device is communicated with the air inlet; when the multi-way valve is positioned at a target station, ozone generated by the ozone generating device enters the multi-way valve through the air inlet, liquid enters the multi-way valve through the water inlet, the ozone and the liquid are mixed in the multi-way valve, and formed gas-liquid mixed liquid enters the main cavity through the multi-way valve. By adopting the equipment, ozone can be introduced to assist in cleaning the filter material, so that the flux recovery rate of the filter material is improved, and the service life of the filter material is prolonged.

Description

Water purifying equipment

Technical Field

The application relates to the technical field of water purification, in particular to a water purifying device.

Background

With the improvement of living standard, the whole house water purification product is receiving the favor of users. The central water purifier is used as a class of full-house water purification products and is mainly used for removing substances such as silt, rust, residual chlorine and the like in a water body. For a central water purifier composed of sand, carbon and other filter materials, the filter materials are polluted after being used for a certain time, so that the flux and the performance are reduced, and the service life is influenced if the filter materials are not washed and recovered.

At present, the method for recovering flux is to wash by using water, but for the filter material with abundant microporous structure, the adsorption sites are more inside micropores except for being located on the surface, if the adsorption sites in the micropores of the filter material are covered by micro particles, the residual chlorine removal effect can be influenced, however, the conventional backwashing water cannot enter the micropores of the filter material, the removal effect of pollutants in the micropores is poor, the filter material is not thoroughly cleaned, the flux recovery rate is low, and the service life of the filter material is influenced. In addition, the porous characteristic enables the filter material to have good adsorption performance, bacterial microorganisms are easy to breed when water is not supplied, and the water quality sanitation and safety are affected.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a water purification apparatus capable of improving flux recovery rate, prolonging service life of filter material, and ensuring water quality safety.

A water purification apparatus, the apparatus comprising: the ozone generator comprises a multiway valve, a main cavity and an ozone generating device, wherein the multiway valve is matched and connected with the main cavity and is communicated with an inner cavity of the main cavity in a fluid mode, the multiway valve is provided with an air inlet and a water inlet, and the ozone generating device is communicated with the air inlet; when the multi-way valve is positioned at a target station, ozone generated by the ozone generating device enters the multi-way valve through the air inlet, liquid enters the multi-way valve through the water inlet, the ozone and the liquid are mixed in the multi-way valve, and formed gas-liquid mixed liquid enters the main cavity through the multi-way valve.

Above-mentioned water purification unit, the multiple unit valve has the air inlet, and ozone generating device communicates with the air inlet, and when the multiple unit valve was in the target station (for example wash the station), ozone can get into the multiple unit valve through the air inlet, mixes with the liquid that gets into the multiple unit valve, forms the gas-liquid mixture and is used for wasing the filter material in the main cavity body. Ozone microbubbles can be generated by introducing ozone gas, the cleaning of pollutants on the surface of the filter material is more thorough by virtue of local high-pressure impact formed by gas-liquid scrubbing, particle collision and microbubble breakage, meanwhile, microbubbles can permeate into microporous pore passages of the filter material, the cleaning range can cover more adsorption sites, and ozone has strong oxidizing property and can degrade organic substances adsorbed by the filter material so as to enable the filter material to release more active sites, thereby improving the recovery rate of filter material flux and being beneficial to prolonging the service life of the filter material. In addition, the ozone can also effectively kill bacterial microorganisms in the water body, and the water use sanitation and safety are guaranteed.

In one embodiment, the apparatus further comprises: and the first air inlet pipeline is used for communicating the air inlet with the ozone generating device. Accordingly, when the multi-way valve is positioned at the target station, the ozone generated by the ozone generating device can reach the air inlet through the first air inlet pipeline and enter the multi-way valve from the air inlet.

In one embodiment, the apparatus further comprises: and the water stopping piece is arranged on the first air inlet pipeline. The water stop piece has the effect of preventing water from passing through, namely, water in the multi-way valve can be prevented from leaking from the first air inlet pipeline, and therefore the problem of water channeling when the multi-way valve is switched between stations can be solved. Therefore, when the multi-way valve is positioned at the target station, ozone generated by the ozone generating device enters the first air inlet pipeline, passes through the water stop piece to reach the air inlet, and enters the multi-way valve from the air inlet.

In one embodiment, the water stop is a one-way valve. The allowable direction of the one-way valve is the direction from the ozone generating device to the multi-way valve, namely, the direction is consistent with the air inlet direction. Water in the multi-way valve can be effectively prevented from leaking from the first air inlet pipeline through the one-way valve, so that the problem of water channeling caused when the multi-way valve is switched to stations can be solved. Therefore, when the multi-way valve is positioned at the target station, the ozone generated by the ozone generating device enters the first air inlet pipeline, passes through the one-way valve to reach the air inlet, and enters the multi-way valve from the air inlet.

In one embodiment, the water stop member is an electromagnetic valve, the electromagnetic valve is connected with a controller, and the controller controls the on-off state of the electromagnetic valve. The on-off state of the electromagnetic valve is used for controlling the first air inlet pipeline to be opened and closed, when the electromagnetic valve is opened, the first air inlet pipeline is opened, so that ozone can reach the air inlet through the first air inlet pipeline and enter the multi-way valve from the air inlet; when the electromagnetic valve is closed, namely the first air inlet pipeline is closed, water channeling is prevented. Accordingly, when the multi-way valve is located at the target station, the controller controls the electromagnetic valve to be opened, and ozone enters the first air inlet pipeline, passes through the electromagnetic valve to reach the air inlet and enters the multi-way valve from the air inlet. In the process of station switching of the multi-way valve, the controller controls the electromagnetic valve to be closed so as to prevent water in the multi-way valve from leaking out of the first air inlet pipeline, and therefore water leakage is prevented.

In one embodiment, the apparatus further comprises: and two ends of the second air inlet pipeline are respectively communicated with the first air inlet pipeline and the outside. Accordingly, when the multi-way valve is positioned at the target station, external air can enter the first air inlet pipeline through the second air inlet pipeline and is mixed with ozone entering the first air inlet pipeline to form ozone-air mixed gas, and the ozone-air mixed gas reaches the air inlet through the first air inlet pipeline and enters the multi-way valve from the air inlet.

In one embodiment, the apparatus further comprises: a perforated element through which the second air intake duct communicates with the outside. The porous element is provided with a through hole structure, and the through hole is used for dispersing air entering the second air inlet pipeline, so that bubbles can be formed, and the cleaning effect of the filter material is improved. Accordingly, when the multi-way valve is positioned at the target station, external air enters the second air inlet pipeline after being dispersed by the porous element, enters the first air inlet pipeline through the second air inlet pipeline, is mixed with ozone entering the first air inlet pipeline to form ozone-air mixed gas, and the ozone-air mixed gas reaches the air inlet through the first air inlet pipeline and enters the multi-way valve from the air inlet.

In one embodiment, the apertured member is an aerator. The aeration head can make the bubble that gets into the multiple unit valve more even, and the aeration head has abundant micropore simultaneously, more is favorable to forming the microbubble. Accordingly, when the multi-way valve is positioned at the target station, external air enters the second air inlet pipeline after being dispersed by the porous element, enters the first air inlet pipeline through the second air inlet pipeline, is mixed with ozone entering the first air inlet pipeline to form ozone-air mixed gas, and the ozone-air mixed gas reaches the air inlet through the first air inlet pipeline and enters the multi-way valve from the air inlet.

In one embodiment, an upper water distributor, a central pipe and a lower water distributor are arranged in the main cavity, two ends of the central pipe are respectively connected with the multi-way valve and the lower water distributor, and the upper water distributor is connected with the multi-way valve.

In one embodiment, the multi-way valve further has a waste water port; when the multi-way valve is positioned at a target station, the gas-liquid mixed liquid enters the central pipe through the multi-way valve, reaches the lower water distributor through the central pipe, enters the main cavity through the lower water distributor to clean filter materials, and generated waste liquid enters the multi-way valve through the upper water distributor and is discharged through the waste water outlet. Accordingly, gas-liquid mixed liquid for cleaning the filter material is diffused by the lower water distributor and enters the main cavity, the filter material is cleaned from bottom to top, and generated waste liquid is collected by the upper water distributor and then discharged from the waste water port.

In one embodiment, the multi-way valve further has a waste water port; when the multi-way valve is positioned at a target station, the gas-liquid mixed liquid enters the upper water distributor through the multi-way valve and enters the main cavity through the upper water distributor to clean the filter material, and the generated waste liquid enters the central pipe through the lower water distributor, enters the multi-way valve through the central pipe and is discharged through the waste water outlet. Therefore, gas-liquid mixed liquid for cleaning the filter material is diffused by the upper water distributor and enters the main cavity, the filter material is cleaned from top to bottom, and generated waste liquid is collected by the lower water distributor and then discharged from the waste water port.

Drawings

FIG. 1 is a schematic view showing the structure of a water purifying apparatus according to an embodiment;

FIG. 2 is a schematic structural diagram of a water purifying apparatus in one embodiment;

FIG. 3 is a schematic structural diagram of a water purifying apparatus in one embodiment;

FIG. 4 is a schematic structural diagram of a water purifying apparatus in one embodiment;

FIG. 5 is a schematic diagram showing the structure of a water purifying apparatus according to an embodiment;

FIG. 6 is a schematic structural diagram of a water purifying apparatus in one embodiment;

FIG. 7 is a schematic diagram of the air intake principle of the water purification apparatus in one embodiment;

fig. 8 is a schematic diagram of the air intake principle of the water purification device in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In one embodiment, as shown in fig. 1, there is provided a water purifying apparatus including: the ozone generating device comprises a multiway valve 10, a main cavity 20 and an ozone generating device 30, wherein the multiway valve 10 is matched and connected to the main cavity 20 and is communicated with the inner cavity of the main cavity 20 in a fluid mode, the multiway valve 10 is provided with an air inlet 11 and a water inlet 12, and the ozone generating device 30 is communicated with the air inlet 11; when the multi-way valve 10 is at a target station, ozone generated by the ozone generating device 30 enters the multi-way valve 10 through the air inlet 11, liquid enters the multi-way valve 10 through the water inlet 12, the ozone and the liquid are mixed in the multi-way valve 10, and formed gas-liquid mixed liquid enters the main cavity 20 through the multi-way valve 10.

The main chamber 20 contains filter media, such as activated carbon, quartz sand, etc., and the main chamber 20 may be a glass fiber reinforced plastic canister. The multi-way valve 10 may have a plurality of stations (e.g., water supply, cleaning, etc.), the target station represents a station to which ozone gas is to be introduced, such as a cleaning station, the cleaning station may include a normal forward cleaning station or a reverse cleaning station, and may further include a bubble-assisted cleaning station, etc., and the bubble-assisted cleaning may be a top-down cleaning (forward cleaning) or a bottom-up cleaning (reverse cleaning), which is not limited thereto.

The ozone generator 30 may generate ozone, specifically, ozone may be generated by electrolyzing air, or ozone may be generated by electrolyzing water, which is not limited. The liquid entering the multi-way valve 10 refers to liquid for cleaning the filter material, and may be water or other liquid capable of cleaning the filter material.

In the water purifying apparatus, the multi-way valve 10 has the air inlet 11, the ozone generating device 30 is communicated with the air inlet 11, when the multi-way valve 10 is at a target station (for example, a bubble auxiliary cleaning station), ozone can enter the multi-way valve 10 through the air inlet 11 to be mixed with liquid entering the multi-way valve 10, so as to form a gas-liquid mixed liquid for cleaning the filter material in the main cavity 20. Ozone microbubbles can be generated by introducing ozone gas, the cleaning of pollutants on the surface of the filter material is more thorough by virtue of local high-pressure impact formed by gas-liquid scrubbing, particle collision and microbubble breakage, meanwhile, microbubbles can permeate into microporous pore passages of the filter material, the cleaning range can cover more adsorption sites, and ozone has strong oxidizing property and can degrade organic substances adsorbed by the filter material so as to enable the filter material to release more active sites, thereby improving the recovery rate of filter material flux and being beneficial to prolonging the service life of the filter material. In addition, the ozone can also effectively kill bacterial microorganisms in the water body, and the water use sanitation and safety are guaranteed.

In one embodiment, as shown in fig. 2, the water purifying apparatus further includes: a first air inlet duct 40 for communicating the air inlet 11 with the ozone generating device 30. Thus, when the multi-way valve 10 is at the target station (e.g., the bubble assist cleaning station), the ozone generated by the ozone generating device 30 can reach the air inlet 11 through the first air inlet pipe 40 and enter the multi-way valve 10 from the air inlet 11.

In one embodiment, one end of the first air intake duct 40 communicates with the outside and the other end communicates with the air intake port 11, and the ozone generating device 30 is a device for generating ozone by electrolyzing air and is provided in the first air intake duct 40. Thus, when the multi-way valve 10 is at the target station (e.g., the bubble assist cleaning station), the outside air enters the ozone generating device 30 through the first air intake duct 40, the ozone generating device 30 generates ozone by electrolyzing the air, and the ozone reaches the air intake port 11 through the first air intake duct 40 together with the air that is not electrolyzed, and enters the multi-way valve 10 from the air intake port 11.

In one embodiment, as shown in fig. 2, the water purifying apparatus further includes: a water stop 50 disposed on the first air intake duct 40. The water stop 50 is provided between the ozone generating device 30 and the air inlet 11. When the multi-way valve 10 is switched from one station to another station, a phenomenon that water in the multi-way valve 10 flows out from the first air inlet pipe 40 may occur during the switching process, and the phenomenon is simply referred to as water channeling. The water stop 50 has the function of preventing water from passing through, that is, water in the multi-way valve 10 can be prevented from leaking out of the first air inlet pipeline 40, so that the problem of water leakage occurring when the station switching of the multi-way valve 10 is carried out can be solved. Thus, when the multi-way valve 10 is at the target station (e.g., the bubble assist cleaning station), ozone generated by the ozone generating device 30 enters the first air inlet duct 40, passes through the water stop 50 to reach the air inlet 11, and enters the multi-way valve 10 from the air inlet 11.

In one embodiment, as shown in fig. 3, the water stop 50 is a check valve 51, and the allowable direction of the check valve 51 is the direction from the ozone generating device 30 to the multi-way valve 10, i.e. the direction corresponding to the air intake direction. The check valve 51 can effectively prevent water in the multi-way valve 10 from leaking out of the first air inlet pipeline 40, so that the problem of water leakage when the station of the multi-way valve 10 is switched can be solved. Thus, when the multi-way valve 10 is at the target station (e.g., the bubble assist purge station), ozone generated by the ozone generating device 30 enters the first air intake duct 40, passes through the check valve 51 to the air inlet 11, and enters the multi-way valve 10 from the air inlet 11.

In another embodiment, as shown in fig. 4, the water stop 50 is a solenoid valve 52, the solenoid valve 52 is connected to a controller 60, and the controller 60 controls the on/off state of the solenoid valve 52. The on-off state of the electromagnetic valve 52 is used for controlling the opening and closing of the first air inlet pipeline 40, when the electromagnetic valve 52 is opened, namely the first air inlet pipeline 40 is opened, ozone can reach the air inlet 11 through the first air inlet pipeline 40 and enter the multi-way valve 10 from the air inlet 11; when the solenoid valve 52 is closed, i.e., the first intake duct 40 is closed, the blow-by water is prevented.

The solenoid valve 52 is fully opened or fully closed, and compared with a non-return structure in the check valve 51, the solenoid valve 52 hardly interferes with the micro-bubbles generated by the intake air in the opened state. When micro bubbles need to be generated, the controller 60 controls the multi-way valve 10 to rotate to a target station (for example, a bubble assisted cleaning station) and controls the solenoid valve 52 to be closed at the same time, so as to prevent water in the multi-way valve 10 from leaking out of the first air inlet pipe 40, thereby preventing water leakage; after the target station is switched to the right position, the controller 60 controls the electromagnetic valve 52 to open, so that the ozone reaches the air inlet 11 through the first air inlet pipeline 40, and enters the multi-way valve 10 from the air inlet 11 to be mixed with the liquid entering the multi-way valve 10 to form a gas-liquid mixed liquid, and the gas-liquid mixed liquid enters the main cavity 20 through the multi-way valve 10 to be used for cleaning the filter material in the main cavity 20.

In another embodiment, the water stop 50 may also be an electric ball valve, and the electric ball valve is connected to the controller 60, and the controller 60 controls the on-off state of the electric ball valve. The on-off state of the electric ball valve is used for controlling the opening and closing of the first air inlet pipeline 40, when the electric ball valve is opened, namely the first air inlet pipeline 40 is opened, ozone can reach the air inlet 11 through the first air inlet pipeline 40 and enter the multi-way valve 10 from the air inlet 11; when the electric ball valve is closed, that is, the first air intake duct 40 is closed, the water blow-by is prevented.

The on-off state of the electric ball valve is fully opened or fully closed, and compared with a non-return structure in the check valve 51, the electric ball valve hardly has any interference on the micro bubbles generated by air intake in the opening state. When micro bubbles need to be generated, the controller 60 controls the multi-way valve 10 to rotate to a target station (for example, a bubble auxiliary cleaning station) and controls the electric ball valve to be closed at the same time, so as to prevent water in the multi-way valve 10 from leaking out of the first air inlet pipeline 40, and thus prevent water leakage; after the target station is switched in place, the controller 60 controls the electric ball valve to be opened, so that the ozone reaches the air inlet 11 through the first air inlet pipeline 40, and enters the multi-way valve 10 from the air inlet 11 to be mixed with the liquid entering the multi-way valve 10 to form a gas-liquid mixed liquid, and the gas-liquid mixed liquid enters the main cavity 20 through the multi-way valve 10 and is used for cleaning the filter material in the main cavity 20.

In another embodiment, as shown in fig. 4, ozone generating device 30 is further connected to controller 60, and controller 60 controls the operating state of ozone generating device 30. When the multi-way valve 10 is at a target station (e.g., a bubble assist cleaning station), the controller 60 controls the ozone generating device 30 to operate to generate ozone, which reaches the gas inlet 11 through the first gas inlet duct 40 and enters the multi-way valve 10 from the gas inlet 11.

In another embodiment, as shown in fig. 5, the water purifying apparatus further includes: and a second air intake duct 41, both ends of the second air intake duct 41 communicating with the first air intake duct 30 and the outside, respectively. The second air intake duct 41 may be a branch duct of the first air intake duct 40. One end of the second air intake duct 41 communicates with the outside, and one end of the second air intake duct 41 may be open to directly communicate with the air. Thus, when the multi-way valve 10 is at the target station (e.g., the bubble assist cleaning station), the external air can enter the first air inlet duct 40 through the second air inlet duct 41, mix with the ozone entering the first air inlet duct 40 to form the ozone-air mixture, and the ozone-air mixture reaches the air inlet 11 through the first air inlet duct 40 and enters the multi-way valve 10 from the air inlet 11.

In another embodiment, as shown in fig. 6, the water purifying apparatus further includes: the perforated member 70, and the second air intake duct 41 communicate with the outside through the perforated member 70. The perforated element 70 has a through hole structure for dispersing air entering the second air inlet duct 41, which is beneficial to forming air bubbles and improving the cleaning effect of the filter material. Thus, when the multi-way valve 10 is at the target station (e.g., the bubble assist cleaning station), the external air is dispersed by the perforated member 70, enters the second air inlet duct 41, enters the first air inlet duct 40 through the second air inlet duct 41, and is mixed with the ozone entering the first air inlet duct 40 to form the ozone-air mixture, and the ozone-air mixture reaches the air inlet 11 through the first air inlet duct 40 and enters the multi-way valve 10 from the air inlet 11.

In one embodiment, the perforated member 70 is an aeration head, which can make the bubbles entering the multi-way valve 10 more uniform, and the aeration head has abundant micropores, which is more favorable for forming micro bubbles. Thus, when the multi-way valve 10 is at the target station (e.g., the bubble assist cleaning station), the external air is dispersed by the perforated member 70, enters the second air inlet duct 41, enters the first air inlet duct 40 through the second air inlet duct 41, and is mixed with the ozone entering the first air inlet duct 40 to form the ozone-air mixture, and the ozone-air mixture reaches the air inlet 11 through the first air inlet duct 40 and enters the multi-way valve 10 from the air inlet 11.

It should be noted that the perforated element 70 is not limited to the aeration head, and may have other structures with through holes, further, the perforated element 70 may have a structure with uniformly distributed through holes, and further, the diameter of the through holes may be 100nm to 100 μm.

Further, the position of the perforated member 70 is not limited to that shown in fig. 6, and in other embodiments, the perforated member 70 may be provided in the first air intake duct 40, and specifically may be located between the duct junction (the junction of the second air intake duct 41 and the first air intake duct 40) and the air inlet 11, so that, when the multi-way valve 10 is at a target station (e.g., a bubble assist cleaning station), external air enters the first air intake duct 40 through the second air intake duct 41, mixes with ozone entering the first air intake duct 40 to form an ozone-air mixture, and the ozone-air mixture is dispersed through the perforated member 70, reaches the air inlet 11 through the first air intake duct 40, and enters the multi-way valve 10 from the air inlet 11.

In other embodiments, the perforated element 70 may be provided in two, one being provided in the first air intake duct 40 as shown in fig. 6, and in particular may be located between the ozone generating device 30 and the duct junction (the junction of the second air intake duct 41 and the first air intake duct 40), so that, when the multi-way valve 10 is at the target station (e.g., the bubble assist purge station), the external air is dispersed through the perforated member 70 and enters the second air inlet duct 41, enters the first air inlet pipeline 40 through the second air inlet pipeline 41, ozone generated by the ozone generating device 30 is dispersed by a perforated element (not shown in the figure) and enters the first air inlet pipeline 40, the dispersed air is mixed with the ozone to form ozone-air mixed gas, and the ozone-air mixed gas reaches the air inlet 11 through the first air inlet pipeline 40 and enters the multi-way valve 10 from the air inlet 11.

It should be noted that the connection position of the second air inlet duct 41 and the first air inlet duct 40 is not limited to that shown in fig. 5 or fig. 6, in fig. 5 and fig. 6, the connection position of the second air inlet duct 41 and the first air inlet duct 40 is located on the left side of the water stop 50, and in other embodiments, the connection position of the second air inlet duct 41 and the first air inlet duct 40 may be located on the right side of the water stop 50, that is, ozone may be mixed with air before reaching the water stop 50 or after reaching the water stop 50, which is not limited in this respect.

In one embodiment, a check valve (not shown) may be further provided on the second air inlet pipe 41, the check valve being provided between the perforated member 70 and the first air inlet pipe 40, and the allowable direction of the check valve is a direction directed from the perforated member 70 to the first air inlet pipe 40 to prevent water channeling.

In one embodiment, the first air inlet pipe 40 may be a small-diameter pipe, such as a capillary pipe, and when the multi-way valve 10 is located at a target station, a corresponding flow channel is formed inside the multi-way valve 10 for cleaning liquid to enter the multi-way valve 10 from an inlet, and when the liquid passes through the flow channel inside the valve, due to the diameter-changing function of the large and small pipe diameters, a siphon force is generated on the capillary pipe, and ozone may enter the multi-way valve 10 through the capillary pipe under the siphon force to be mixed with the liquid in the multi-way valve 10 to form a gas-liquid mixture for cleaning the filter material.

As shown in fig. 7, a schematic view of the air intake principle in one embodiment is provided. The multi-way valve comprises a multi-way valve body, a first air inlet pipeline 40, a second air inlet pipeline 40, a first air inlet pipeline, a second air inlet pipeline, a third air inlet pipeline, a fourth air inlet pipeline, a fifth air inlet pipeline, a fourth air inlet pipeline, a fifth air inlet pipeline, a sixth air inlet pipeline, a fifth air inlet pipeline, a fourth air inlet pipeline and a fourth air inlet pipeline.

In one embodiment, the second air inlet pipe 41 is also a small-bore pipe, such as a capillary tube, and the external air can enter the first air inlet pipe 40 through the capillary tube under the action of siphon force to be mixed with the ozone in the first air inlet pipe 40 to form an ozone-air mixture, and the ozone-air mixture enters the multi-way valve 10 through the capillary tube under the action of siphon force to be mixed with the liquid in the multi-way valve 10 to form a gas-liquid mixture for cleaning the filter material.

As shown in fig. 8, a schematic view of the air intake principle in one embodiment is provided. The multi-way valve comprises a multi-way valve body, a flow channel, a gas-liquid mixed liquid and a flow channel, wherein the flow channel is formed inside the multi-way valve body when the multi-way valve body is located at a target station, a represents liquid, b represents ozone, c represents air, and n represents the gas-liquid mixed liquid, when the liquid a flows through the flow channel L, siphon force is generated on a first gas inlet pipeline 40 and a first gas inlet pipeline 41, the ozone b enters the first gas inlet pipeline 40 under the action of siphon force, the air c enters the first gas inlet pipeline 40 through a second gas inlet pipeline 41 under the action of siphon force, the ozone b and the air c are mixed in the first gas inlet pipeline 40 to form ozone-air mixed gas, and the ozone-air mixed gas enters the flow channel L through the first gas inlet pipeline 40 and is mixed with the liquid a in the flow channel L to form the gas-liquid mixed liquid n.

In one embodiment, the lengths of the first and second

air inlet conduits

40 and 41 may be controlled to meet the connection of the relevant components, without requiring an excessively long conduit, to prevent the bubbles generated by the siphon from gathering into the air flow.

In one embodiment, as shown in fig. 1-6, an upper water distributor 21, a central pipe 22 and a lower water distributor 23 are disposed in the main chamber 20, two ends of the central pipe 22 are respectively connected to the multi-way valve 10 and the lower water distributor 23, and the upper water distributor 21 is connected to the multi-way valve 10. The multi-way valve 10 is also provided with a water producing port 13 and a waste water port 14, and different flow passages are formed in the multi-way valve 10 when the multi-way valve is switched to different stations.

In one embodiment, when the multi-way valve 10 is located at the bubble assisted cleaning station and the bubble assisted cleaning is back cleaning, the gas-liquid mixture for cleaning the filter material enters the central pipe 22 through the multi-way valve 10, reaches the lower water distributor 23 through the central pipe 22, and enters the main chamber 20 through the lower water distributor 23 to clean the filter material, and the generated waste liquid enters the multi-way valve 10 through the upper water distributor 21 and is discharged through the waste water outlet 14. Therefore, in the backwashing state, the gas-liquid mixture for cleaning the filter material is diffused into the main cavity 20 by the lower water distributor 23, the filter material is cleaned from bottom to top, and the generated waste liquid is collected by the upper water distributor 21 and then discharged from the waste water port 14.

In one embodiment, when the multiway valve 10 is located at the bubble assisted cleaning station and the bubble assisted cleaning is positive cleaning, the gas-liquid mixture for cleaning the filter material enters the upper water distributor 21 through the multiway valve 10 and enters the main chamber 20 through the upper water distributor 21 to clean the filter material, and the generated waste liquid enters the central tube 22 through the lower water distributor 23, enters the multiway valve 10 through the central tube 22 and is discharged through the waste water outlet 14. Therefore, in the state of positive cleaning, the gas-liquid mixture for cleaning the filter material is diffused by the upper water distributor 23 into the main cavity 20 to clean the filter material from top to bottom, and the generated waste liquid is collected by the lower water distributor 21 and then discharged from the waste water port 14.

In one embodiment, the bubble assisted cleaning step may be performed before the backwashing step, so as to loosen, carry out and partially remove the contaminants on the surface of the filter material, between the filter materials and inside the filter material particles by means of the generated micro-nano bubbles. After the air bubble auxiliary cleaning step is finished, the backwashing step takes out loosened pollutants, and meanwhile, the backwashing can form inter-particle collision friction to perform secondary cleaning on the pollutants on the surface of the filter material. Compared with independent backwashing, the cleaning effect of the combination of bubble auxiliary cleaning and backwashing is better, and the service life of the filter material can be effectively prolonged.

In one embodiment, the operation procedure of the water purifying apparatus may include: water supply, bubble auxiliary cleaning, backwashing, forward washing and water supply. The controller 60 controls the on-off state of the electromagnetic valve 52, so that the water leakage problem during the station switching of the multi-way valve 10 is solved. The specific control logic may be as follows: in the process that the multi-way valve 10 is switched from the water supply station to the bubble auxiliary cleaning station, the controller 60 controls the electromagnetic valve 52 to be closed, and after the multi-way valve is switched in place, the controller 60 controls the electromagnetic valve 52 to be opened; in the process that the multi-way valve 10 is switched from the bubble auxiliary cleaning station to the backwashing station, the controller 60 controls the electromagnetic valve 52 to be closed, and after the multi-way valve is switched in place, the controller 60 controls the electromagnetic valve 52 to be closed; in the process that the multi-way valve 10 is switched from the backwashing station to the forward washing station, the controller 60 controls the electromagnetic valve 52 to be closed, and after the multi-way valve is switched in place, the controller 60 controls the electromagnetic valve 52 to be closed; in the process that the multi-way valve 10 is switched from the forward washing station to the water supply station, the controller 60 controls the electromagnetic valve 52 to be closed, and after the multi-way valve is switched in place, the controller 60 controls the electromagnetic valve 52 to be closed.

In another embodiment, the bubble assisted cleaning step may also be after the backwashing step, and the operation procedure of the water purification apparatus may include: water supply, backwashing, bubble auxiliary cleaning, forward washing and water supply. The controller 60 controls the on-off state of the electromagnetic valve 52, so that the water leakage problem during the station switching of the multi-way valve 10 is solved. The specific control logic may be as follows: in the process that the multi-way valve 10 is switched from the water supply station to the backwashing station, the controller 60 controls the electromagnetic valve 52 to be closed, and after the multi-way valve is switched in place, the controller 60 controls the electromagnetic valve 52 to be closed; in the process that the multi-way valve 10 is switched from the backwashing station to the bubble auxiliary cleaning station, the controller 60 controls the electromagnetic valve 52 to be closed, and after the multi-way valve is switched in place, the controller 60 controls the electromagnetic valve 52 to be opened; in the process that the multi-way valve 10 is switched from the bubble auxiliary cleaning station to the normal cleaning station, the controller 60 controls the electromagnetic valve 52 to be closed, and after the multi-way valve is switched in place, the controller 60 controls the electromagnetic valve 52 to be closed; in the process that the multi-way valve 10 is switched from the forward washing station to the water supply station, the controller 60 controls the electromagnetic valve 52 to be closed, and after the multi-way valve is switched in place, the controller 60 controls the electromagnetic valve 52 to be closed.

In another embodiment, the bubble assisted cleaning step can be between two backwashing steps, and the operation program of the water purification device can include: water supply, backwashing, bubble auxiliary cleaning, backwashing, forward washing and water supply. The controller 60 controls the on-off state of the electromagnetic valve 52, so that the water leakage problem during the station switching of the multi-way valve 10 is solved. The specific control logic may be as follows: in the process that the multi-way valve 10 is switched from the water supply station to the backwashing station, the controller 60 controls the electromagnetic valve 52 to be closed, and after the multi-way valve is switched in place, the controller 60 controls the electromagnetic valve 52 to be closed; in the process that the multi-way valve 10 is switched from the backwashing station to the bubble auxiliary cleaning station, the controller 60 controls the electromagnetic valve 52 to be closed, and after the multi-way valve is switched in place, the controller 60 controls the electromagnetic valve 52 to be opened; in the process that the multi-way valve 10 is switched from the bubble auxiliary cleaning station to the backwashing station, the controller 60 controls the electromagnetic valve 52 to be closed, and after the multi-way valve is switched in place, the controller 60 controls the electromagnetic valve 52 to be closed; in the process that the multi-way valve 10 is switched from the backwashing station to the forward washing station, the controller 60 controls the electromagnetic valve 52 to be closed, and after the multi-way valve is switched in place, the controller 60 controls the electromagnetic valve 52 to be closed; in the process that the multi-way valve 10 is switched from the forward washing station to the water supply station, the controller 60 controls the electromagnetic valve 52 to be closed, and after the multi-way valve is switched in place, the controller 60 controls the electromagnetic valve 52 to be closed.

In the above embodiment, the solenoid valve 52 is in the closed state during the switching of the stations of the multi-way valve 10, so that the problem of water leakage can be prevented. When the multi-way valve 10 is in a working position where gas is not required to be introduced, the electromagnetic valve 52 is in a normally closed state; when the multi-way valve 10 is in the bubble assist purge position, the solenoid valve 52 is open, and gas is introduced and bubbles are generated to assist in purging. The operation procedure of the water purification apparatus is not limited to the above embodiment, and other embodiments are possible, including the bubble assisted cleaning step, and the operation procedure is not limited thereto.

In one embodiment, when the multi-way valve 10 is in the backwashing position, water for cleaning filter materials enters the multi-way valve 10 from the water inlet 12, enters the central pipe 22 through the multi-way valve 10, reaches the lower water distributor 23 through the central pipe 22, and enters the main chamber 20 through the lower water distributor 23 to clean the filter materials, and generated waste liquid enters the multi-way valve 10 through the upper water distributor 21 and is discharged through the waste water outlet 14.

In one embodiment, when the multi-way valve 10 is in the forward washing station, water for cleaning the filter media enters the multi-way valve 10 from the water inlet 12, enters the upper water distributor 21 through the multi-way valve 10, enters the main body 20 through the upper water distributor 21 to clean the filter media, and the generated waste liquid enters the central pipe 22 through the lower water distributor 23, enters the multi-way valve 10 through the central pipe 22, and is discharged through the waste water outlet 14.

In one embodiment, when the multi-way valve 10 is in the water supply station, the water to be purified enters the multi-way valve 10 from the water inlet 12, enters the upper water distributor 21 through the multi-way valve 10, enters the main cavity 20 through the upper water distributor 21, is purified by the filter material, enters the central tube 22 through the lower water distributor 23, enters the multi-way valve 10 through the central tube 22, and is discharged through the water producing port 13.

It should be understood that the terms "first", "second", etc. in the above-described embodiments are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. For the description of numerical ranges, the term "plurality" means more than one, i.e. equal to or greater than two.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A water purification apparatus, comprising: the ozone generator comprises a multiway valve, a main cavity and an ozone generating device, wherein the multiway valve is matched and connected with the main cavity and is communicated with an inner cavity of the main cavity in a fluid mode, the multiway valve is provided with an air inlet and a water inlet, and the ozone generating device is communicated with the air inlet; when the multi-way valve is positioned at a target station, ozone generated by the ozone generating device enters the multi-way valve through the air inlet, liquid enters the multi-way valve through the water inlet, the ozone and the liquid are mixed in the multi-way valve, and formed gas-liquid mixed liquid enters the main cavity through the multi-way valve.

2. The apparatus of claim 1, further comprising: and the first air inlet pipeline is used for communicating the air inlet with the ozone generating device.

3. The apparatus of claim 2, further comprising: and the water stopping piece is arranged on the first air inlet pipeline.

4. The apparatus of claim 3, wherein the water stop is a one-way valve.

5. The apparatus of claim 3, wherein the water stop is a solenoid valve, and the solenoid valve is connected to a controller, and the controller controls the on/off state of the solenoid valve.

6. The apparatus of claim 3, further comprising: and two ends of the second air inlet pipeline are respectively communicated with the first air inlet pipeline and the outside.

7. The apparatus of claim 6, further comprising: a perforated element through which the second air intake duct communicates with the outside.

8. The apparatus of claim 7, wherein the apertured element is an aerator.

9. The apparatus according to any one of claims 1 to 8, wherein an upper water distributor, a central pipe and a lower water distributor are arranged in the main chamber, two ends of the central pipe are respectively connected with the multi-way valve and the lower water distributor, and the upper water distributor is connected with the multi-way valve.

10. The apparatus of claim 9, wherein the multiplex valve further has a waste port.