CN220257689U - Ultrafiltration water purifier and system for realizing forward flushing and back flushing - Google Patents

Abstract

The utility model provides an ultrafiltration water purifier and an ultrafiltration water purifier system for realizing forward flushing and back flushing, and relates to the technical field of water purifying equipment. Through setting up the waste water center tube in the ultrafiltration filter core, can follow the water conservancy diversion of waste water center tube after washing to waste water outlet discharge, and waste water outlet and clean mouth of a river are not same mouth, have avoided the clean water after the filtration to be polluted. Valves are respectively arranged on the three inlet/outlet connection pipelines of the filter element, and three functions of water filtration, forward flushing and back flushing of the filter element can be realized by controlling the opening and closing of the valves, so that the service life of the ultrafiltration water purifier is prolonged.

Description

Ultrafiltration water purifier and system for realizing forward flushing and back flushing

Technical Field

The utility model relates to the technical field of water purifying equipment, in particular to an ultrafiltration water purifier and an ultrafiltration water purifying system for realizing forward flushing and back flushing.

Background

The ultrafilter is equipment for purifying water with ultrafiltering technology. The difference with other water purifying equipment is that an ultrafiltration membrane is used. The ultrafiltration membrane is a microporous filtration membrane with consistent pore size and rated pore size ranging from 0.1 to 0.001 microns. The membrane filtration method adopting the ultrafiltration membrane with the pressure difference as the driving force is ultrafiltration membrane filtration. Along with the improvement of the living standard of people, the water purification field is focused more and more water purifiers enter families, schools and companies, and are widely used by people.

The key point of the water purifier is the filtering membrane, and the performance of the filtering membrane influences the use of the water purifier. In the water purification process, the filtering membrane is used as a key component for intercepting water quality impurities, so that a large amount of impurity residues are attached to the surface of the filtering membrane after the water purifier is used for a long time, thereby influencing the water flux and the water filtering effect, the traditional water purifier has no self-flushing function, and when the impurity residues on the surface of the filtering membrane are too much, the filtering core can be replaced only for solving, so that the cost consumption is high. At present, some water purifiers with flushing function appear, but normal flushing can only be realized, namely flushing is carried out along with the water flowing and filtering direction, because the water flowing direction is consistent with that of filtered water, impurities remained on a filtering membrane can not be completely removed, and therefore, a novel water purifier with normal flushing function and reverse flushing function is needed to be provided, the residual impurities on the surface and inside of a filter element can be removed, and the service life of the filter element is prolonged.

In view of this, the present utility model has been made.

Disclosure of Invention

The utility model aims to provide an ultrafiltration water purifier and an ultrafiltration water purification system for realizing forward flushing and back flushing, which can realize three functions of forward flushing, back flushing and ultrafiltration water purification.

Embodiments of the present utility model are implemented as follows:

in a first aspect, the present utility model provides an ultrafiltration water purifier for effecting forward flushing and reverse flushing, comprising a housing and an ultrafiltration cartridge contained within the housing.

The ultrafiltration filter element comprises an ultrafiltration shell, an ultrafiltration sleeve, a wastewater central tube and a plurality of ultrafiltration wires, wherein the wastewater central tube and the ultrafiltration wires are contained in the ultrafiltration sleeve; one end of the ultrafiltration sleeve is fixedly connected with the ultrafiltration shell, the ultrafiltration sleeve and the ultrafiltration shell are arranged at intervals to form a water inlet flow channel, and a plurality of ultrafiltration wires are arranged in the ultrafiltration sleeve at intervals to form a water filtering flow channel; the ultrafiltration shell is provided with a water inlet, a water purifying port and a wastewater outlet, the water inlet is communicated with the water inlet flow channel, the water purifying port is communicated with the water filtering flow channel, and the wastewater outlet is communicated with the wastewater central tube.

Be provided with first valve on the pipeline that is connected with the water inlet for control water inlet intakes, pipeline one end that is connected with the water purification mouth is used for with domestic water pipe intercommunication, and the opposite other end is connected with the pipeline at first valve place through flushing pipeline, and is provided with the second valve on the flushing pipeline, is used for controlling water purification mouth intakes, is provided with the third valve on the pipeline that communicates with the waste water export, is used for controlling waste water emission.

When the ultrafiltration water purifier is used for filtering water, the first valve is opened, the second valve and the third valve are closed, water flows through the first valve through the pipeline, then enters the ultrafiltration filter core from the water inlet, diffuses through the water inflow channel and flows into the ultrafiltration wires for filtering and filtering, and the filtered water flows out along the water filtering channel and is discharged out of the ultrafiltration water purifier through the water purifying port, and then flows to the household water pipe along the pipeline to be used as purified water.

When back flushing is carried out, the first valve and the household water pipe are closed, the second valve and the third valve are opened, water flows through the pipeline, passes through the second valve, then enters the ultrafiltration filter element from the water purifying port, enters the ultrafiltration silk through the filtered water flow channel, then passes through the ultrafiltration silk, and carries impurities on the surface or the inside of the ultrafiltration silk to flow to the waste water central pipeline together, then flows to the waste water outlet from the waste water central pipeline, is conveyed through the pipeline, and the washed waste water passes through the third valve and is discharged.

When the water purifier is positively flushed, the second valve and the household water pipe are closed, the first valve and the third valve are opened, water flows through the first valve through the pipeline, then enters the ultrafiltration filter element from the water inlet, and is diffused to the periphery of the ultrafiltration wire through the water inlet flow channel.

In an alternative embodiment, the pipeline connected with the water purifying port, the household water pipe and the flushing pipeline are connected through a tee joint. When water flows from a pipeline connected with the water purifying port to the water using pipe, ultrafiltration of the water is realized; when water flow enters the pipeline connected with the water purifying port from the flushing pipeline, the back flushing of the ultrafiltration water purifier is realized.

In an alternative embodiment, in order to improve the ultrafiltration capability of water, the water inlet and the water purifying port are positioned at the same end of the ultrafiltration filter element, and after entering the ultrafiltration wire, water is filtered layer by layer and then returned to the water purifying port at the same side to flow out; in order to improve the cleaning capacity of the ultrafiltration filter element, the wastewater outlet is also positioned at one end which is the same as the water inlet and the water purifying port, the whole ultrafiltration filter element can be sufficiently cleaned by water flow, the wastewater returns after the cleaning is finished, and the wastewater flows out from the wastewater outlet.

In an alternative embodiment, since the wastewater center tube is positioned in the middle of the ultrafiltration filter core, the wastewater outlet is also positioned in the middle of the ultrafiltration filter core, facilitating the discharge of wastewater. A water purifying port and a water inlet are sequentially arranged along the direction from the wastewater outlet to the ultrafiltration shell.

In an alternative embodiment, the wastewater center tube is located within the ultrafiltration sleeve and just in the middle of the ultrafiltration sleeve, facilitating direct communication with the wastewater outlet.

In alternative embodiments, the number of ultrafiltration cartridges may be increased as desired.

In an alternative embodiment, in order to ensure the safe water purifying capacity of the ultrafiltration water purifier, each ultrafiltration wire is fixed with the ultrafiltration sleeve through a sealing member.

In an alternative embodiment, the surface of each ultrafiltration wire is provided with a plurality of ultrafiltration wire holes, water flows out through the ultrafiltration wire holes, and impurities can be taken out by water through the ultrafiltration wire holes and discharged out of the ultrafiltration water purifier.

In a second aspect, the utility model provides an ultrafiltration water purification system for realizing forward flushing and back flushing, comprising a raw water pipe, a waste water tank, a household water pipe and the ultrafiltration water purifier for realizing forward flushing and back flushing according to any one of the previous embodiments.

The raw water pipe is connected with the first valve and the second valve through pipelines respectively, the waste water tank is connected with the third valve through a pipeline, and the household water pipe is connected with the water purifying port through a pipeline.

The embodiment of the utility model has the beneficial effects that:

the utility model provides an ultrafiltration water purifier and a system for realizing forward flushing and back flushing, which can guide flushing water from a wastewater central tube to a wastewater outlet for discharge by arranging the wastewater central tube in an ultrafiltration filter element, and the wastewater outlet and a water purifying port are not the same port, so that the filtered purified water is prevented from being polluted. Valves are respectively arranged on the three inlet/outlet connection pipelines of the filter element, and three functions of water filtration, forward flushing and back flushing of the filter element can be realized by controlling the opening and closing of the valves, so that the service life of the ultrafiltration water purifier is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an external structure diagram of an ultrafiltration water purifier according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a flow direction of water when the ultrafiltration water purifier provided by the embodiment of the utility model is used for filtering water;

FIG. 3 is a schematic diagram of the flow direction of water during back flushing of the ultrafiltration water purifier according to the embodiment of the utility model;

FIG. 4 is a schematic diagram of the flow direction of water at the ultrafiltration wire during back flushing of the ultrafiltration water purifier according to the embodiment of the utility model;

FIG. 5 is a schematic diagram of the flow direction of water during the flushing of the ultrafiltration water purifier according to the embodiment of the present utility model;

FIG. 6 is a schematic diagram of the flow direction of water at the ultrafiltration wire when the ultrafiltration water purifier provided by the embodiment of the utility model is being washed;

fig. 7 is a schematic diagram of the working principle of the ultrafiltration water purification system provided by the embodiment of the utility model.

Icon 100-ultrafiltration water purifier; 110-an ultrafiltration housing; 111-water inlet; 112-a water purifying port; 113-a waste water outlet; 120-ultrafiltration sleeve; 130-ultrafiltration wire; 131-ultrafiltration wire holes; 132-a seal; 140-a wastewater central tube; 151-a water inlet flow channel; 152-filtered water flow channel; 161-first valve; 162-a second valve; 163-third valve; 200-household water pipes; 300-raw water pipe; 400-a wastewater tank; 500-impurities; 1000-ultrafiltration water purification system.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

First embodiment

Referring to fig. 1, the present embodiment provides an ultrafiltration water purifier 100 for implementing forward flushing and back flushing, which includes a housing and an ultrafiltration cartridge accommodated in the housing.

Referring to fig. 2, the ultrafiltration cartridge includes an ultrafiltration housing 110, an ultrafiltration sleeve 120, and a wastewater center tube 140 and a plurality of ultrafiltration filaments 130 contained in the ultrafiltration sleeve 120; one end of the ultrafiltration sleeve 120 is fixedly connected with the ultrafiltration shell 110, and the ultrafiltration sleeve 120 and the ultrafiltration shell 110 are arranged at intervals to form a water inlet flow channel 151, and a plurality of ultrafiltration wires 130 are arranged in the ultrafiltration sleeve 120 at intervals to form a water filtering flow channel 152; the ultrafiltration shell 110 is provided with a water inlet 111, a water purifying port 112 and a wastewater outlet 113, the water inlet 111 is communicated with the water inlet water flow channel 151, the water purifying port 112 is communicated with the water filtering water flow channel 152, and the wastewater outlet 113 is communicated with the wastewater central tube 140.

Referring to fig. 7, a first valve 161 is disposed on a pipe connected to the water inlet 111 for controlling water inflow of the water inlet 111, one end of the pipe connected to the water purifying port 112 is connected to the domestic water pipe 200, the opposite end is connected to the pipe where the first valve 161 is disposed through a flushing pipe, a second valve 162 is disposed on the flushing pipe for controlling water inflow of the water purifying port 112, and a third valve 163 is disposed on the pipe connected to the waste water outlet 113 for controlling waste water discharge.

Referring to fig. 5 or 6, in the present embodiment, a plurality of ultrafiltration holes 131 are formed on the surface of each ultrafiltration wire 130, water flows out through the ultrafiltration holes 131, and impurities 500 can be carried out through the ultrafiltration holes 131 and discharged out of the ultrafiltration water purifier 100.

In this embodiment, the pipe connected to the water purifying port 112, the home water pipe 200 and the flushing pipe are connected by a tee joint. Ultrafiltration of water is achieved when water flows from the pipe connected to the water purification port 112 to the water use pipe; backwash of the ultrafiltration water purifier 100 is effected when water flow enters the conduit connected to the water purification port 112 from the flushing conduit.

In this embodiment, in order to improve the ultrafiltration capability of water, the water inlet 111 and the water purifying port 112 are positioned at the same end of the ultrafiltration filter element, and after entering the ultrafiltration filament 130, water is filtered layer by layer and then flows back to the water purifying port 112 at the same side to flow out; in order to improve the cleaning ability of the ultrafiltration cartridge, the waste water outlet 113 is also positioned at the same end as the water inlet 111 and the water purifying port 112, and the water flow can sufficiently clean the whole ultrafiltration cartridge, and after the cleaning is finished, the water flow returns to flow out from the waste water outlet 113.

In this embodiment, the wastewater center tube 140 is located within the ultrafiltration sleeve 120 and is located just in the middle of the ultrafiltration sleeve 120, so that the wastewater outlet 113 is located in the middle of the ultrafiltration cartridge, facilitating direct communication with the wastewater center tube 140. A water purifying port 112 and a water inlet port 111 are sequentially provided in the direction from the waste water outlet 113 to the ultrafiltration housing 110.

In this embodiment, in order to ensure the safe water purifying capability of the ultrafiltration water purifier 100, each ultrafiltration wire 130 is fixed to the ultrafiltration sleeve 120 by a sealing member 132.

Second embodiment

Referring to fig. 7, the present embodiment provides an ultrafiltration water purification system 1000 for implementing forward flushing and back flushing, which includes a raw water pipe 300, a wastewater tank 400, a home water pipe 200, and the ultrafiltration water purifier 100 for implementing forward flushing and back flushing of the first embodiment.

The raw water pipe 300 is connected to the first valve 161 and the second valve 162 through pipes, respectively, the waste water tank 400 is connected to the third valve 163 through pipes, and the home water pipe 200 is connected to the water purifying port 112 through pipes.

The ultrafiltration water purification system 1000 for realizing forward flushing and back flushing provided in this embodiment has the following working principle:

referring to fig. 2, when the ultrafiltration water purifier 100 is used for water filtration, the first valve 161 is opened, the second valve 162 and the third valve 163 are closed, water flows from the raw water pipe 300 through the first valve 161, then enters the ultrafiltration cartridge from the water inlet 111, diffuses through the water inlet flow channel 151 and flows into the plurality of ultrafiltration filaments 130 for filtration, and the filtered water flows out along the water filter flow channel 152 and is discharged out of the ultrafiltration water purifier 100 through the water purifying port 112, and then flows to the domestic water pipe 200 along the pipe for use as purified water.

Referring to fig. 3 and 4, when back flushing is performed, the first valve 161 and the home water pipe 200 are closed, the second valve 162 and the third valve 163 are opened, water flows from the raw water pipe 300 through the second valve 162, then enters the ultrafiltration cartridge from the water purifying port 112, enters the ultrafiltration cartridge through the filtered water flow channel 152, then passes through the ultrafiltration cartridge 130, and carries impurities 500 on or in the ultrafiltration cartridge 130 to flow to the wastewater central pipe 140, then flows from the wastewater central pipe 140 to the wastewater outlet 113, and is transported through the pipeline, and the washed wastewater is discharged to the wastewater tank 400 through the third valve 163.

Referring to fig. 5 and 6, when the washing is being performed, the second valve 162 and the home water pipe 200 are closed, the first valve 161 and the third valve 163 are opened, water flows from the raw water pipe 300 through the first valve 161, then enters the ultrafiltration cartridge from the water inlet 111, and diffuses around the ultrafiltration membrane 130 through the water inlet flow channel 151, and because the home water pipe 200 is closed, the pressure in the water purifier is large, the water cannot enter the ultrafiltration membrane 130, so that the water flows on the surface of the ultrafiltration membrane 130 to wash, the impurities 500 on the surface of the ultrafiltration membrane 130 are carried away, the impurities 500 flow to the wastewater outlet 113 through the wastewater central pipe 140, and the washed wastewater is transported through the pipeline and discharged to the wastewater tank 400 through the third valve 163.

The ultrafiltration water purifier 100 and the ultrafiltration water purifier system for realizing forward flushing and back flushing provided by the embodiment of the utility model have at least the following advantages:

by arranging the wastewater central tube 140 in the ultrafiltration filter core, the washed water can be guided from the wastewater central tube 140 to the wastewater outlet 113 for discharge, and the wastewater outlet 113 and the purified water outlet 112 are not the same, so that the purified water after filtration is prevented from being polluted. Valves are respectively arranged on the three inlet/outlet connection pipelines of the filter element, and three functions of water filtration, forward flushing and back flushing of the filter element can be realized by controlling the opening and closing of the valves, so that the service life of the ultrafiltration water purifier 100 is prolonged.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. An ultrafiltration water purifier for realizing forward flushing and back flushing is characterized by comprising a shell and an ultrafiltration filter element accommodated in the shell;

the ultrafiltration filter element comprises an ultrafiltration shell, an ultrafiltration sleeve, a wastewater central tube and a plurality of ultrafiltration wires, wherein the wastewater central tube and the ultrafiltration wires are contained in the ultrafiltration sleeve; one end of the ultrafiltration sleeve is fixedly connected with the ultrafiltration shell, the ultrafiltration sleeve and the ultrafiltration shell are arranged at intervals to form a water inlet flow channel, and a plurality of ultrafiltration wires are arranged in the ultrafiltration sleeve at intervals to form a water filtering flow channel; the ultrafiltration shell is provided with a water inlet, a water purifying port and a wastewater outlet, the water inlet is communicated with the water inlet flow channel, the water purifying port is communicated with the water filtering flow channel, and the wastewater outlet is communicated with the wastewater central pipe;

be provided with first valve on the pipeline that is connected with the water inlet for control the water inlet is intake, with pipeline one end that the water purification mouth is connected is used for with domestic water pipe intercommunication, and the opposite other end is through the pipe connection at flushing pipeline and first valve place, just be provided with the second valve on the flushing pipeline, be used for controlling the water purification mouth of a river and intake, be provided with the third valve on the pipeline that the waste water export is connected, be used for controlling the waste water emission.

2. The ultrafiltration water purifier for realizing forward flushing and back flushing according to claim 1, wherein the pipeline connected with the water purifying port, the household water pipe and the flushing pipeline are connected through a tee joint.

3. The ultrafiltration water purifier for implementing forward flushing and reverse flushing according to claim 1, wherein the water inlet, the water purifying port and the wastewater outlet are all positioned at the same end of the ultrafiltration filter element.

4. The ultrafiltration water purifier for realizing forward flushing and back flushing according to claim 3, wherein the wastewater outlet is positioned in the middle of the ultrafiltration filter element, and the water purifying port and the water inlet are sequentially arranged along the direction from the wastewater outlet to the ultrafiltration shell.

5. The ultrafiltration water purifier for effecting forward flushing and reverse flushing of claim 3 wherein said wastewater center tube is located intermediate said ultrafiltration sleeve.

6. The ultrafiltration water purifier for effecting forward flushing and reverse flushing of claim 1 wherein each of said ultrafiltration filaments is secured to an ultrafiltration sleeve by a seal.

7. The ultrafiltration water purifier for performing forward flushing and reverse flushing according to claim 1, wherein a surface of each ultrafiltration wire is provided with a plurality of ultrafiltration wire holes.

8. An ultrafiltration water purification system for realizing forward flushing and back flushing, which is characterized by comprising a raw water pipe, a waste water tank, a household water pipe and the ultrafiltration water purifier for realizing forward flushing and back flushing according to any one of claims 1 to 7;

the raw water pipe is connected with the first valve and the second valve through pipelines respectively, the waste water tank is connected with the third valve through a pipeline, and the household water pipe is connected with the water purifying port through a pipeline.