CN112408611A

CN112408611A - Water purification device, water purification system and water purification method

Info

Publication number: CN112408611A
Application number: CN201910772030.7A
Authority: CN
Inventors: 沈科; 王晨; 杨中
Original assignee: AO Smith China Water Heater Co Ltd; AO Smith China Environmental Products Co Ltd
Current assignee: AO Smith China Water Heater Co Ltd; AO Smith China Environmental Products Co Ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2021-02-26

Abstract

The invention discloses a water purifying device, a water purifying system and a water purifying method, which relate to the technical field of water treatment, and the water purifying device comprises: a housing having a water outlet and a water inlet; a partition dividing the interior of the housing into a first chamber and a second chamber, the first chamber being in communication with the water inlet and the second chamber being in communication with the water outlet; a hollow fiber membrane inserted through the separator, the inner side of the hollow fiber membrane communicating with the second chamber, and the outer side of the hollow fiber membrane communicating with the second chamber; a cleaning mechanism comprising an agitation member disposed in the first chamber, the agitation member being rotatable to drive a flow of water to clean the hollow fiber membranes. This application can effectively wash hollow fiber membrane to prolong hollow fiber membrane's life and guarantee hollow fiber membrane's filtration purification efficiency and effect.

Description

Water purification device, water purification system and water purification method

Technical Field

The invention relates to the technical field of water treatment, in particular to a water purifying device, a water purifying system and a water purifying method.

Background

A central water purifier is a large water treatment facility that can provide filtered and purified water for different purposes to users for the whole house or unit. Therefore, the requirement for the water output of the central water purifier is high, and the purpose of filtering and purifying water with high efficiency needs to be met. In order to achieve the above purpose, the existing central water purifiers are large in volume, but the central water purifier is inconvenient to install and place. Secondly, because the water yield of central water purifier every day is very big, the loss to the filter life-span in central water purifier is very serious, if often change filter then can cause the too high problem of use cost again. Moreover, the existing central water purifier usually adopts a mode of combining quartz sand filtration and granular activated carbon filtration, so that the quartz sand filtration precision is low, and the granular activated carbon filtration efficiency is low, thereby resulting in unobvious improvement on the whole-house water quality purification. In addition, in the filtration purification process, impurity and pollutant in the aquatic all adsorb in a large number or stop on filtering the piece, cause the jam of filtering the piece easily, and the resistance effect that the water that flows into to filter the piece is more and more big, finally leads to filtering the piece and descends by a wide margin when follow-up filtration water purification, can't satisfy user high flow demand.

Disclosure of Invention

In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a water purifying apparatus, a water purifying system and a water purifying method, which can solve at least one of the above-mentioned problems.

The specific technical scheme of the embodiment of the invention is as follows:

a water purification apparatus comprising:

a housing having a water outlet and a water inlet;

a partition dividing the interior of the housing into a first chamber and a second chamber, the first chamber being in communication with the water inlet and the second chamber being in communication with the water outlet;

a hollow fiber membrane inserted through the separator, the inner side of the hollow fiber membrane communicating with the second chamber, and the outer side of the hollow fiber membrane communicating with the second chamber;

a cleaning mechanism comprising an agitation member disposed in the first chamber, the agitation member being rotatable to drive a flow of water to clean the hollow fiber membranes.

Preferably, both ends of the hollow fiber membrane penetrate through the separator, and the middle of the hollow fiber membrane hangs down.

Preferably, one end of the hollow fiber membrane penetrates through the separator, and the other end of the hollow fiber membrane is in a blocking state.

Preferably, the hollow fiber membranes hang down in a vertical direction.

Preferably, the stirring member is located on a side of the hollow fiber membranes facing away from the separator.

Preferably, the stirring member does not contact with the hollow fiber membrane.

Preferably, the cleaning mechanism further comprises: a motor disposed outside the housing; one end of the transmission shaft is in transmission connection with the motor, the other end of the transmission shaft is connected with the stirring piece, and the transmission shaft penetrates through the shell.

Preferably, the partition has an opening therein, and the transmission shaft is inserted through the openings of the housing, the second chamber and the partition.

Preferably, the transmission shaft overcoat is equipped with the separation sleeve, the separation sleeve is worn to establish the trompil of separator, the separation sleeve with relatively fixed between the separator.

Preferably, the transmission shaft penetrates through the housing forming the first chamber, and the position where the transmission shaft penetrates through the housing is located on one side of the hollow fiber membranes, which faces away from the partition.

Preferably, a radial seal is provided between the drive shaft and the housing.

Preferably, the cleaning mechanism further comprises: the magnetic force generating mechanism is arranged outside the shell, and the magnetic transmission mechanism is positioned on one side of the separator, which is far away from the hollow fiber membrane; the transmission shaft is connected with the stirring piece; the magnetic force generating mechanism is matched with the first magnet so that the magnetic force generating mechanism can drive the first magnet to rotate.

Preferably, the magnetic force generating mechanism includes: a motor: and the second magnet is connected to the motor and matched with the first magnet so as to enable the second magnet to drive the first magnet to rotate.

Preferably, the second magnet is circumferentially disposed in a circumferential direction of the first magnet.

Preferably, a limiting part protruding outwards is formed on the housing, the first magnet is arranged in the limiting part, the transmission shaft penetrates into the limiting part, and the motor is connected with the second magnet through a bracket.

Preferably, the partition has an opening therein, and the drive shaft is inserted through the second chamber and the opening of the partition.

Preferably, a radial seal is provided between the spacer sleeve and the housing.

Preferably, a sliding part is arranged on the transmission shaft, and the sliding part is located in the limiting part and clamped with the limiting part.

Preferably, the magnetic force generating mechanism includes: a fixed rotor, said rotor mating with said first magnet, said rotor and said first magnet rotating relative to each other when said rotor is energized.

Preferably, the cleaning mechanism further comprises: a magnetic force generating mechanism disposed outside the housing; the magnetic force generating mechanism is matched with the first magnetic part so as to drive the stirring part and the first magnetic part to rotate, and the magnetic force generating mechanism and the first magnetic part are positioned on one side of the hollow fiber membrane, which is deviated from the separator.

Preferably, the magnetic force generating mechanism includes: a motor; the support of connection on the motor, be provided with the second magnetism spare on the support, the second magnetism spare with first magnetism spare is pressed close to respectively the casing, the second magnetism spare with first magnetism spare matches so that the second magnetism spare can drive first magnetism spare rotates.

Preferably, a positioning piece for fixing the position of the stirring piece on the shell is arranged between the stirring piece and the shell.

Preferably, the thickness of the positioning piece and the shell is less than or equal to 5 mm.

Preferably, the magnetic force generating mechanism includes: the rotor is matched with the first magnetic piece, and when the rotor is electrified, the rotor and the first magnetic piece rotate relatively.

Preferably, the water purifying device further comprises a water inlet pipeline with a second opening and closing valve and a sewage pipeline with a third opening and closing valve, the water inlet pipeline is communicated with the water inlet, and the sewage pipeline is communicated with the water inlet.

Preferably, the housing has a water outlet therein, the water outlet being in communication with the first chamber;

the water purifier also comprises a water inlet pipeline with a second opening and closing valve and a sewage discharge pipeline with a third opening and closing valve, the water pipeline is communicated with the water inlet, and the sewage discharge pipeline is communicated with the water outlet.

Preferably, the separator is formed by a sealing glue.

A water purification system, the water purification system comprising:

a water purification apparatus as claimed in any one of the preceding claims;

and the inlet of the filtering device is communicated with the water outlet of the water purifying device, and the filtering device comprises an activated carbon fiber filter element.

A water purification apparatus comprising:

a shell with a water outlet, a water inlet and a water outlet;

a partition dividing the interior of the housing into a first chamber and a second chamber, the first chamber being in communication with the water inlet, the second chamber being in communication with the water outlet, the water outlet being in communication with the first chamber;

a filter element passing through the partition element, the water outlet side of the filter element communicating with the second chamber;

a purge mechanism, the purge mechanism comprising: a circulating pipeline of a pump is arranged, one end of the circulating pipeline is communicated with the water outlet, and the other end of the circulating pipeline is communicated with the water inlet; a first open/close valve communicating with the drain port.

A water purification method using the water purification apparatus as described in any one of the above, the water purification apparatus further comprising: the flow detection device is used for measuring the filtering water flow of the hollow fiber membrane;

the water purification method comprises the following steps:

measuring a filtered water flow rate of the hollow fiber membrane by the flow rate detection means;

when the filtered water flow of the hollow fiber membrane measured by the flow detection device is attenuated to a first preset condition, controlling the cleaning mechanism to clean the hollow fiber membrane;

after the hollow fiber membrane is cleaned, the flow detection device is used for measuring the filtering water flow of the hollow fiber membrane, and if the filtering water flow of the hollow fiber membrane measured by the flow detection device reaches a second preset condition, the water purification device can be used again; and if the filtering water flow of the hollow fiber membrane measured by the flow detection device does not reach a second preset condition, controlling the cleaning mechanism to re-clean the hollow fiber membrane.

Preferably, the water purification method further comprises:

and when the frequency of continuously re-cleaning the hollow fiber membrane by the cleaning mechanism reaches a preset value and the filtered water flow of the hollow fiber membrane measured by the flow detection device does not reach a second preset condition, sending a prompt that the hollow fiber membrane needs to be replaced.

A water purification method using the water purification apparatus as described in any one of the above, the water purification apparatus further comprising: a pressure drop test system for measuring the pressure drop across the hollow fiber membranes;

the water purification method comprises the following steps:

measuring the pressure drop before and after the hollow fiber membrane through the pressure drop test system;

when the pressure drop before and after the hollow fiber membrane measured by the pressure drop test system rises to a third preset condition, controlling the cleaning mechanism to clean the hollow fiber membrane;

after the hollow fiber membrane is cleaned, measuring the pressure drop before and after the hollow fiber membrane through the pressure drop test system, and if the pressure drop before and after the hollow fiber membrane measured by the pressure drop test system reaches a fourth preset condition, the water purifying device can be used again; and if the pressure drop before and after the hollow fiber membrane measured by the pressure drop test system does not reach a fourth preset condition, controlling the cleaning mechanism to clean the hollow fiber membrane again.

Preferably, the water purification method further comprises:

and when the number of times of continuously re-cleaning the hollow fiber membrane by the cleaning mechanism reaches a preset value and the pressure drop before and after the hollow fiber membrane measured by the pressure drop test system does not reach a fourth preset condition, sending a prompt that the hollow fiber membrane needs to be replaced.

Preferably, the time for cleaning the hollow fiber membrane by the cleaning mechanism is in the water non-use time period of the water purifying device.

Preferably, the water purification method further comprises:

when the preset fixed time or the preset interval time is reached, controlling the cleaning mechanism to clean the hollow fiber membrane;

when the service life of the hollow fiber membrane is up, a prompt that the hollow fiber membrane needs to be replaced is sent.

The technical scheme of the invention has the following remarkable beneficial effects:

the hollow fiber membrane in this application is a dirty filtration piece is received to non-, and it has huge surface area, consequently can carry out efficient filtration to water and purify to can satisfy purifier in the demand of large-traffic application occasion. However, when the water purifying device filters and purifies water, impurity pollutants and the like in the water are filtered by the hollow fiber membrane and stay near the surface of the hollow fiber membrane instead of entering the medium of the hollow fiber membrane, and after reaching a certain degree, the impurity pollutants staying on the surface of the hollow fiber membrane can form a dirt layer to further prevent water from further flowing into the hollow fiber membrane, so that the filtering and purifying efficiency of the water purifying device is greatly reduced, and further large flow cannot be realized. At this moment, can be through the high-speed flow of water in the first cavity of rotation drive of stirring piece among the wiper mechanism to let rivers erode the surface of hollow fiber membrane on the one hand, let the hollow fiber membrane rock on the other hand and collide the friction, thereby get rid of the dirty layer on hollow fiber membrane surface, make it resume efficient filtration purification performance again. Through the above process, the hollow fiber membrane is effectively cleaned, the service life of the hollow fiber membrane can be prolonged, and the filtering and purifying efficiency and effect of the hollow fiber membrane can be ensured.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the invention are not so limited in scope. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims. Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the invention as a matter of case.

FIG. 1 is a schematic structural diagram of a first embodiment of an example of the present invention;

FIG. 2 is a schematic structural view of a hollow fiber membrane and a separator according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a hollow fiber membrane in an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a second embodiment in an example of the present invention;

FIG. 5 is an enlarged schematic view of an upper portion of the housing of FIG. 4;

FIG. 6 is a schematic structural diagram of a third embodiment in an example of the present invention;

FIG. 7 is an enlarged schematic view of an upper portion of the housing of FIG. 6;

FIG. 8 is a schematic structural view of a fourth embodiment in example of the present invention;

FIG. 9 is a schematic view of the structure of the stirring member of FIG. 8;

FIG. 10 is a schematic view of the interior of the stirring member of FIG. 8;

FIG. 11 is a schematic structural diagram of a fifth embodiment in the example of the present invention;

FIG. 12 is a schematic structural diagram of a sixth embodiment in the example of the present invention;

FIG. 13 is a schematic structural diagram of a seventh embodiment in the example of the present invention;

FIG. 14 is a graph comparing the flow rate of a water purification device without a cleaning mechanism with that of the water purification device of the present application at different water discharge rates;

fig. 15 is a graph comparing the residual chlorine removal rates of activated carbon fiber filter elements and granular carbon filter elements.

Reference numerals of the above figures:

1. a separator; 11. opening a hole; 2. a housing; 21. a water outlet; 22. a water inlet; 23. a first chamber; 24. a second chamber; 25. a limiting part; 26. a water outlet; 27. a connecting pipe portion; 3. a filter member; 4. a cleaning mechanism; 41. a stirring member; 4101. a centering hole; 42. a motor; 43. a drive shaft; 44. an isolation sleeve; 45. a radial seal; 46. a second magnet; 47. a first magnet; 48. a support; 49. a slider; 410. a second magnetic member; 411. a first magnetic member; 412. a positioning member; 413. a limiting member; 5. a water inlet line; 51. a second opening/closing valve; 6. a waste line; 61. a third opening and closing valve; 7. a recycle line; 71. a pump; 72. a first opening/closing valve; 73. a one-way valve; 100. a water purification device; 200. and (4) a filtering device.

Detailed Description

The details of the present invention can be more clearly understood in conjunction with the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of illustration only and are not to be construed as limiting the invention in any way. Any possible variations based on the present invention may be conceived by the skilled person in the light of the teachings of the present invention, and these should be considered to fall within the scope of the present invention. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, indirect connections through intermediaries, and the like. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the embodiment of the present application, a water purifying apparatus is provided, fig. 1 is a schematic structural diagram of a first embodiment in the embodiment of the present invention, and as shown in fig. 1, the water purifying apparatus may include: a housing 2 having a water outlet 21 and a water inlet 22; a partition 1 dividing the interior of the housing 2 into a first chamber 23 and a second chamber 24, the first chamber 23 being in communication with the water inlet 22, the second chamber 24 being in communication with the water outlet 21; a hollow fiber membrane which is arranged on the separator 1 in a penetrating way, the inner side of the hollow fiber membrane is communicated with the second chamber 24, and the outer side of the hollow fiber membrane is communicated with the second chamber 24; and a cleaning mechanism 4 including a stirring member 41 provided in the first chamber 23, the stirring member 41 being capable of rotating to drive a water flow to clean the hollow fiber membranes.

The hollow fiber membrane in this application is a non-contaminated filter element 3, which has a large surface area, and thus can efficiently filter and purify water, thereby satisfying the demand of the water purification device 100 in a large flow application. However, when the water purifying device 100 filters and purifies water, the impurity pollutants and the like in the water are filtered by the hollow fiber membrane and stay near the surface of the hollow fiber membrane instead of entering the medium of the hollow fiber membrane, and after reaching a certain degree, the impurity pollutants staying on the surface of the hollow fiber membrane can form a dirt layer to further prevent the water from further flowing into the hollow fiber membrane, so that the filtering and purifying efficiency of the water purifying device 100 is greatly reduced, and further, the large flow cannot be realized. At this moment, can be through the high-speed flow of water in the first cavity 23 of rotation drive of stirring part 41 among wiper mechanism 4 to let rivers erode the surface of hollow fiber membrane on the one hand, let the hollow fiber membrane rock on the other hand and collide the friction, thereby get rid of the dirty layer on hollow fiber membrane surface, make its filtration purification performance of high efficiency of resuming. Through the above process, the hollow fiber membrane is effectively cleaned, the service life of the hollow fiber membrane can be prolonged, and the filtering and purifying efficiency and effect of the hollow fiber membrane can be ensured.

In order to better understand the water purification apparatus of the present application, it will be further explained and illustrated below. As shown in fig. 1, the housing 2 of the water purifying device 100 may have a water outlet 21 and a water inlet 22, the water inlet 22 is used for inputting water into the housing 2 for filtration and purification, and the water outlet 21 is used for outputting the water filtered and purified in the housing 2 for use by a user. The housing 2 may be composed of at least 2 parts, so that disassembly of the housing 2, installation and replacement of internal parts, etc. may be achieved.

As shown in fig. 1, a partition 1 may be provided in the case 2, the partition 1 partitioning the inside of the case 2 into a first chamber 23 and a second chamber 24, the first chamber 23 and the second chamber 24 being independent. The first chamber 23 is in communication with the water inlet 22. The second chamber 24 communicates with the water outlet 21.

As shown in fig. 1, a portion of the filter member 3 may be pierced through the partition member 1 so that the water outlet side of the filter member 3 communicates with the second chamber 24. After being filtered and purified by the filter element 3, the water flows out of the water outlet side of the filter element 3 and then flows into the second chamber 24.

In a possible embodiment, the filter element 3 may comprise a non-nanofiltration filter element 3, and the non-nanofiltration filter element 3 may comprise at least a hollow fiber filter element, a ceramic filter element, a reverse osmosis membrane, a nanofiltration membrane, and the like. By non-contaminated filter element 3 is meant that when the filter element 3 filters and purifies water, the contaminant impurities, etc. of the water are filtered by the filter element 3 and stay near the surface of the filter element 3, rather than entering the medium of the filter element 3 itself. The impurity pollutants on the surface of the non-pollutant-receiving filter piece 3 can be removed by a simple surface cleaning mode to remove most of the impurity pollutants, thereby achieving the aim of continuous use.

In a possible embodiment, fig. 2 is a schematic structural view of a hollow fiber membrane and a partition member in an embodiment of the present invention, fig. 3 is a cross-sectional view of the hollow fiber membrane in the embodiment of the present invention, and as shown in fig. 2 and fig. 3, the filter member 3 is a hollow fiber filter element, and the hollow fiber filter element is a plurality of hollow fiber membranes in a filament shape. The inside (i.e., the effluent side) of the hollow fiber membranes communicates with the second chamber 24, and the outside of the hollow fiber membranes communicates with the second chamber 24. Water flows into the inside of the hollow fiber membrane from the outer side wall of the hollow fiber membrane, and in the process, impurity contaminants in the water are trapped on the outer side wall of the hollow fiber membrane, and the filtered and purified water flowing out of the inside of the hollow fiber membrane flows into the second chamber 24. For example, both ends of the hollow fiber membrane can be respectively penetrated through the partition 1, the middle part of the hollow fiber membrane is drooping, so that both ends of the hollow fiber membrane are respectively communicated with the second chamber 24, the water filtered and purified by the hollow fiber membrane can conveniently flow out from both ends to enter the second chamber 24, and the filtering efficiency can be improved to a certain extent. For another example, one end of the hollow fiber membrane may penetrate through the partition 1, the other end of the hollow fiber membrane may be in a blocked state, the hollow fiber membrane may hang down in a vertical direction, and water filtered and purified by the hollow fiber membrane may flow out only from one end into the second chamber 24.

In order to facilitate the partition 1 to enable the plurality of filter members 3 to pass through, for example, hollow fiber membranes or the like, while serving to separate the first and second

independent chambers

23 and 24 and ensure the sealing effect, the partition 1 may be directly formed of a sealing glue.

In a possible embodiment, the cleaning means 4 may comprise an agitator member 41 arranged in the first chamber 23, the agitator member 41 being able to rotate to drive the water flow to clean the filter elements 3. As shown in fig. 1, stirring element 41 may be located on the side of filter element 3 facing away from partition element 1, for example, may be located below filter element 3. The stirring member 41 does not contact with the filter member 3, so as to prevent damage to the filter member 3 during rotation. Stirring member 41 can produce ascending vortex, stirs and to adhere to the impurity pollutant who filters 3 surfaces under the inside water-washed of casing 2, makes to filtering washing of 3 more efficient, and then reduces the flushing time, reduces and washes water. Secondly, because effectual washing will be attached to and wash the back at the impurity pollutant on filter 3 surface, can improve the life and the result of use of filtering piece 3 greatly.

In a possible implementation, fig. 4 is a schematic structural diagram of a second implementation in the embodiment of the present invention, and as shown in fig. 4, the cleaning mechanism 4 may include: a motor 42 disposed outside the housing 2; a transmission shaft 43 with one end in transmission connection with the motor 42, the other end of the transmission shaft 43 is connected with the stirring piece 41, and the transmission shaft 43 penetrates through the shell 2. The position where the transmission shaft 43 penetrates the housing 2 is located at the upper end of the housing 2. When the position where the transmission shaft 43 penetrates the housing 2 is located at the upper end of the housing 2, fig. 5 is an enlarged view of the upper part of the housing in fig. 4, and as shown in fig. 5, the partition 1 may have an opening 11 therein, and the transmission shaft 43 penetrates the housing 2, the second chamber 24 and the opening 11 of the partition 1, thereby entering the first chamber 23. The drive shaft 43 simultaneously passes through the filter element 3 in the first chamber 23 to the underside of the filter element 3, and the stirring element 41 is connected to the drive shaft 43 below the filter element 3. The stirring member 41 may have a stirring blade that is driven to rotate by a driving shaft 43 to generate a vortex toward the filter member 3. The upper end of the transmission shaft 43 penetrates through the housing 2 forming the first chamber 23, and the transmission shaft 43 penetrates through the housing 2 and is located on the side of the filter member 3 away from the partition member 1. A radial seal 45 may be provided between the transmission shaft 43 and the housing 2, so as to improve the sealing between the transmission shaft 43 and the housing 2 and prevent water in the housing 2 from leaking out of a gap between the transmission shaft 43 and the housing 2.

In order to prevent leakage between the transmission shaft 43 and the partition 1, as shown in fig. 4 and 5, a spacer sleeve 44 may be sleeved outside the transmission shaft 43, the spacer sleeve 44 is inserted through the opening 11 of the partition 1, and the spacer sleeve 44 and the partition 1 are relatively fixed. Since relative rotation between the insulating sleeve 44 and the partitioning member 1 does not occur, sealing can be directly performed between the insulating sleeve 44 and the partitioning member 1. The distance sleeve 44 can extend to the position that the transmission shaft 43 is connected with the stirring part 41 all the time, and the distance sleeve 44 can guarantee the stability of the transmission shaft 43 when rotating on the one hand and prevent the transmission shaft 43 from shaking, and on the other hand, the distance sleeve 44 has enough length, can improve the leakproofness between the distance sleeve 44 and the transmission shaft 43 to a certain extent, and reduces the possibility that water continuously permeates into the upper end of the transmission shaft 43 between the distance sleeve 44 and the transmission shaft 43.

In another embodiment, the washing mechanism 4 may include: a motor 42 disposed outside the housing 2; the transmission shaft 43, the transmission shaft 43 is connected with the stirring piece 41; and a magnetic transmission mechanism for transmission between the motor 42 and the transmission shaft 43. Fig. 6 is a schematic structural diagram of a third embodiment in the embodiment of the present invention, and as shown in fig. 6, the magnetic transmission mechanism may include: the magnetic force generating mechanism is arranged outside the shell 2, and the magnetic transmission mechanism is positioned on one side of the separating piece 1, which is far away from the filter piece 3; the transmission shaft 43, the transmission shaft 43 is connected with the stirring piece 41; the first magnet 47 is connected to the end of the transmission shaft 43, the first magnet 47 and the transmission shaft 43 are located inside the housing 2, and the magnetic force generating mechanism is matched with the first magnet 47 so that the magnetic force generating mechanism can drive the first magnet 47 to rotate. When the magnetic force generating mechanism drives the first magnet 47 to rotate, due to the magnetic force, the magnetic force generating mechanism can drive the first magnet 47 to rotate under the condition of no physical contact, so that the first magnet 47 drives the transmission shaft 43 to rotate, and the stirring piece 41 is driven to rotate. Through the mode, the transmission shaft 43 is not required to penetrate through the shell 2, so that holes are prevented from being drilled in the shell 2, the sealing problem between the transmission shaft 43 and the shell 2 is not required to be considered, water in the shell 2 cannot leak out through a gap between the transmission shaft 43 and the shell 2, and the sealing performance of the shell 2 is effectively improved.

Specifically, fig. 7 is an enlarged schematic view of an upper portion of the housing in fig. 6, and as shown in fig. 7, in a possible embodiment, the magnetic force generating mechanism may include: the motor 42: the second magnet 46 is connected to the motor 42, and the second magnet 46 is matched with the first magnet 47 so that the second magnet 46 can drive the first magnet 47 to rotate, that is, the motor is powered on to rotate to drive the second magnet 46 to rotate, and then the second magnet 46 drives the first magnet 47 to rotate. The second magnet 46 may be circumferentially disposed in the circumferential direction of the first magnet 47, and the magnetic force therebetween may be increased by enlarging the area of the side surfaces of the second magnet 46 and the first magnet 47 in the above manner. Meanwhile, a limiting portion 25 protruding outward is formed on the housing 2, the first magnet 47 is disposed in the limiting portion 25, the transmission shaft 43 penetrates the limiting portion 25, and the motor 42 is connected to the second magnet 46 through a bracket 48. The first magnet 47 can be limited in the radial direction through the limiting part 25, so that shaking or deviation of the first magnet is prevented, and the side areas of the second magnet 46 and the first magnet 47 can be controlled according to the depth of the limiting part 25, so that the purpose of controlling the magnetic force between the second magnet 46 and the first magnet 47 is achieved. The fixed connection between the motor 42 and the second magnet 46 is realized through the bracket 48, and the stability of the motor 42 driving the second magnet 46 to rotate is ensured.

Also, in the above embodiment, as shown in fig. 6, the partitioning member 1 has the opening 11 therein, and the transmission shaft 43 is inserted through the second chamber 24 and the opening 11 of the partitioning member 1. The transmission shaft 43 can be sleeved with an isolation sleeve 44, the isolation sleeve 44 is arranged through the opening 11 of the separator 1, and the isolation sleeve 44 and the separator 1 are relatively fixed. The upper end of the isolation sleeve 44 can be sleeved with a downwardly extending connecting pipe part 27 formed in the housing 2, and the connecting pipe part 27 and the limiting part 25 are in the same straight line. A radial seal 45 may be provided between the spacer 44 and the connecting tube portion 27 of the housing 2 so as to ensure that water in the second chamber 24 is difficult to flow from between the spacer 44 and the connecting tube portion 27 of the housing 2 to the upper end of the drive shaft 43 to contact the first magnet 47, preventing the first magnet 47 from affecting the water quality in the second chamber 24 and preventing the first magnet 47 from rusting. As shown in fig. 7, the transmission shaft 43 may be sleeved with a sliding member 49, the sliding member 49 is located in the position-limiting portion 25 and is engaged with the position-limiting portion 25, and the sliding member 49 may support the first magnet 47, and at the same time, when the first magnet 47 rotates, the friction between the transmission shaft 43 and the position-limiting portion 25 of the housing 2 may be effectively reduced. The sliding member 49 may be a smooth plate-like member such as a graphite sheet or teflon, or may be a bearing.

In another possible embodiment, the magnetic force generating mechanism may include: a fixed rotor that mates with the first magnet 47. A motor-like driving structure is formed between the rotor and the first magnet 47, and when the rotor is energized, the rotor and the first magnet 47 rotate relatively. Since the rotor is fixed and cannot rotate, the first magnet 47 rotates, and the first magnet 47 drives the transmission shaft 43 and the stirring member 41 to rotate.

In another embodiment, fig. 8 is a schematic structural diagram of a fourth embodiment in the embodiment of the present invention, and as shown in fig. 8, the cleaning mechanism 4 may include: a magnetic force generating mechanism disposed outside the housing; the first magnetic part 411 arranged on the stirring part 41, the magnetic force generating mechanism and the first magnetic part 411 are matched so that the magnetic force generating mechanism can drive the stirring part 41 and the first magnetic part 411 to rotate, the magnetic force generating mechanism and the first magnetic part 411 are positioned on one side of the filtering part 3 deviating from the separating part 1, namely the magnetic transmission mechanism is positioned at the bottom of the lower end of the shell 2. In this embodiment, the motor 42 and the stirring member 41 do not need to be driven by a slender transmission shaft 43 which needs to pass through the partition 1 and the filter member 3, so that the structural complexity of the cleaning mechanism 4 is effectively simplified, the opening 11 on the partition 1 is avoided, the sealing problem between the transmission shaft 43 and the partition 1 does not need to be considered, and components such as a spacer 44 are further not needed.

In one possible embodiment, as shown in fig. 8, the magnetic force generating mechanism includes: a motor 42; the bracket 48 is connected to the motor 42, the bracket 48 is provided with a second magnetic member 410, the second magnetic member 410 can be distributed circumferentially or symmetrically, the second magnetic member 410 and the first magnetic member 411 are respectively close to the housing 2, the distance between the second magnetic member 410 and the first magnetic member 411 is close to each other enough to generate enough magnetic force to drive the first magnetic member 411 and the second magnetic member 410 to rotate, and the second magnetic member 410 is matched with the first magnetic member 411 to drive the first magnetic member 411 to rotate. The stirring member 41 may be designed in various shapes, for example, a columnar shape or a blade shape, a multi-leaf structure in a straight shape or a cross shape in a plan view, or the like. In a specific embodiment, the upward end of the stirring member 41 has a stirring blade, and when the second magnetic member 410 drives the first magnetic member 411 to rotate, the stirring blade on the stirring member 41 can generate a vortex upward toward the filtering member 3.

Fig. 9 is a schematic structural diagram of the stirring part in fig. 8, and as shown in fig. 8 and 9, a positioning part 412 for fixing the position of the stirring part 41 on the housing 2 is disposed between the stirring part 41 and the housing 2. The positioning member 412 is fixedly connected to the stirring member 41, and the positioning member 412 can be inserted into a recess on the housing 2 to keep the stirring member 41 at a certain position on the housing 2. The area of the horizontal cross section of the positioning part 412 is smaller, and a certain gap is formed between the stirring part 41 and the shell 2, so that the friction resistance of the shell 2 to the stirring part 41 can be effectively reduced, and the rotation of the stirring part 41 is facilitated. In order to ensure that sufficient magnetic force can be generated between the first magnetic element 411 and the second magnetic element 410 to drive them to rotate, the thickness of the positioning element 412 and the housing 2 is preferably less than or equal to 5 mm. As shown in fig. 9, in order to prevent the stirring bar 41 from separating from the positioning member 412, a centering hole 4101 is formed in the middle of the stirring bar 41, a rod body at the upper end of the positioning member 412 is inserted into the centering hole 4101, and the stirring bar 41 can rotate around the rod body of the positioning member 412. The upper end of the rod body of the positioning member 412 is further connected with a limiting member 413 through threads, buckles and the like, and the diameter of the upper end of the limiting member 413 is larger than the centering hole 4101, so that the stirring member 41 is limited, and the stirring member 41 cannot move upwards to separate from the positioning member 412. A certain gap is formed between the end of the upper end of the limiting piece 413 and the upper end face of the stirring piece 41, so that the end of the upper end of the limiting piece 413 is prevented from contacting with the upper end face of the stirring piece 41, and friction is prevented from increasing.

In a possible embodiment, fig. 10 is a schematic structural view of the inside of the stirring member in fig. 8, as shown in fig. 10, the first magnetic member 411 may be disposed at an end portion of the stirring member 41, and a portion between the end portions of the stirring member 41 may have a hollow structure. Since the price of the magnet is increased by several times with the size, the amount of the first magnetic member 411 can be reduced, and the cost can be reduced. Meanwhile, the self weight of the stirring member 41 is reduced, thereby effectively improving the stirring efficiency.

In another possible embodiment, the magnetic force generating mechanism may include: and a fixed rotor, which is matched with the first magnetic member 411, and when the rotor is electrified, the rotor and the first magnetic member 411 rotate relatively. A driving structure similar to a motor is formed between the rotor and the first magnetic member 411, and when the rotor is powered on, the rotor and the first magnetic member 411 rotate relatively. Since the rotor is fixed and cannot rotate, the first magnetic member 411 rotates, and the first magnetic member 411 drives the stirring member 41 to rotate. In a possible embodiment, fig. 11 is a schematic structural diagram of a fifth embodiment in the embodiment of the present invention, and as shown in fig. 11, the water purifying apparatus 100 may include a water inlet line 5 having a second opening and closing valve 51 and a sewage line 6 having a third opening and closing valve 61, wherein the water inlet line 5 is communicated with the water inlet 22, and the sewage line 6 is communicated with the water inlet 22. The water supply of the clean water line to the first chamber 23 can be controlled by opening the second open/close valve 51 and closing the third open/close valve 61, and when the cleaning mechanism 4 drives the water flow to clean the filter elements 3, the water with impurities and pollutants in the first chamber 23 can be discharged from the water inlet 22 to the sewage line 6 by closing the second open/close valve 51 and opening the third open/close valve 61. In this embodiment, the water inlet 22 needs to be located at the lower end of the housing 2 for the discharge of the cleaned water in the first chamber 23. In this embodiment, the water inlet 22 is used for both the inflow and the discharge of the sewage, which effectively reduces the number of the water inlets and outlets 21 formed on the housing 2.

In one possible embodiment, as shown in fig. 1, the housing 2 may have a separate drain opening 26, the drain opening 26 communicating with the first chamber 23. The drain 26 is arranged as far as possible at the lower end of the housing 2 to facilitate the draining of the cleaned water in the first chamber 23. The water purification apparatus 100 may include a water inlet line 5 having a second opening and closing valve 51 and a soil discharge line 6 having a third opening and closing valve 61, the water line communicating with the water inlet 22, the soil discharge line 6 communicating with the water discharge port 26. In this embodiment, the housing 2 is provided with the independent water inlet 22 and the independent water outlet 26, in this way, the water purifying device 100 can continuously input water and continuously discharge sewage at the same time when the cleaning mechanism 4 drives the water flow to clean the filter member 3, so that the cleaning speed can be effectively increased.

In this application, a water purifying apparatus 100 is further provided, where fig. 12 is a schematic structural diagram of a sixth embodiment in an example of the present invention, and fig. 13 is a schematic structural diagram of a seventh embodiment in an example of the present invention, and as shown in fig. 12 and 13, the water purifying apparatus 100 may include: a housing 2 having a water outlet 21, a water inlet 22 and a water outlet 26; a partition 1 dividing the interior of the housing 2 into a first chamber 23 and a second chamber 24, the first chamber 23 communicating with the water inlet 22, the second chamber 24 communicating with the water outlet 21, and the water discharge port 26 communicating with the first chamber 23; the filtering piece 3 is arranged on the separator 1 in a penetrating way, and the water outlet side of the filtering piece 3 is communicated with the second chamber 24; wiper mechanism 4, wiper mechanism 4 includes: a circulation line 7 provided with a pump 71, one end of the circulation line 7 being communicated with the water outlet 26, the other end of the circulation line 7 being communicated with the water inlet 22; the first opening/closing valve 72, the first opening/closing valve 72 communicates with the drain port 26.

In the present embodiment, specific embodiments of the housing 2, the partition 1, the filter member 3, and the like can be referred to in the above description. When it is desired to clean the filter element 3 in the housing 2, the first on-off valve 72 is closed, and the water in the housing 2 can be pumped out from the water outlet 26 and fed into the housing 2 from the water inlet 22 by the pump 71, so that the water in the housing 2 circulates to flush out the impurity contaminants on the filter element 3. After the washing is completed, the first opening/closing valve 72 is opened to discharge the sewage in the housing 2 to the housing 2.

In order to prevent the water in the circulation line 7 from flowing backwards, in a possible embodiment, as shown in fig. 12 and 13, a check valve 73 may be provided on the circulation line 7 to communicate from the drain port 26 to the inlet port 22. As shown in fig. 13, the pump 71 may be located at a position where the incoming water passes through the pump 71 and enters the water inlet 22 of the housing 2, in this way, the pressure of the input water can be increased by the pump 71 during normal operation of the water purifying device 100, so as to increase the water output flow rate of the water purifying device 100. Of course, the pump 71 may not be located between the inlet 22 of the incoming water to the housing 2, as shown in fig. 12.

In the present application, a water purifying method using the water purifying apparatus 100 as described above is also provided, and the water purifying apparatus 100 may include: a flow rate detecting means for measuring the flow rate of water filtered by the filter member 3, the flow rate detecting means may be provided at the water inlet 22 or the water outlet 21 of the housing 2, or the like. The water purification method may include the steps of:

the flow rate of the filtered water of the filter member 3 can be measured by the flow rate detecting means when the water purifying apparatus 100 is in normal use.

When the flow rate of the filtered water of the filter member 3 measured by the flow detection device is attenuated to a first preset condition, the cleaning mechanism 4 is controlled to clean the filter member 3. The first predetermined condition may be a predetermined filtered water flow rate compared to the filtered water flow rate of the new filter member 3, for example, the filtered water flow rate is reduced to 40%, 50%, 60% or the like of the new filter member 3, the filtered water flow rate is at a lower level, that is, the filter member 3 is considered to be required to be cleaned, the outer side wall thereof is already adhered with a large amount of impurity contaminants, and the filtering efficiency and effect cannot be guaranteed.

After the filter member 3 is cleaned, the flow detection device measures the filtering water flow of the filter member 3, and if the filtering water flow of the filter member 3 measured by the flow detection device reaches a second preset condition, the water purifying device 100 can be used again; if the filtering water flow of the filtering piece 3 measured by the flow detection device does not reach the second preset condition, the cleaning mechanism 4 is controlled to clean the filtering piece 3 again. The second predetermined condition may be another predetermined filtered water flow rate compared to the filtered water flow rate of the new filter member 3. The preset filtering water flow under the second preset condition is higher than the preset filtering water flow under the first preset condition. For example, the preset filtered water flow rate under the second preset condition may be 80% or 85%, 90% or so of the new filter member 3. After cleaning, after the filtering water flow reaches the second preset condition, the filtering piece 3 is considered to be basically cleaned, the filtering efficiency and the filtering effect are recovered to a greater degree, and the normal use requirement can be met. After the filtering member 3 is cleaned once, the filtered water flow does not reach the second preset condition, and the filtering member is considered not to be cleaned, so that the requirement of continuous normal use cannot be met. This requires the cleaning mechanism 4 to be controlled to re-clean the filter elements 3.

When the number of times of continuous re-cleaning of the filter member 3 by the cleaning mechanism 4 reaches a preset value and the flow rate of the filtered water of the filter member 3 measured by the flow rate detection device does not reach the second preset condition, a prompt that the filter member 3 needs to be replaced is sent. The preset value may be a number of times set manually, such as 4 times, 5 times, 6 times, and so on. In the above situation, it can be considered that the filtering element 3 cannot be cleaned by the cleaning mechanism 4, so that the filtering efficiency and the filtering effect can be recovered to the normal use level, which indicates that the filtering element 3 cannot be used continuously, and the service life is reached, therefore, the filtering element 3 in the water purifying device 100 needs to be replaced, so that the water purifying device 100 can give an indication that the filtering element 3 needs to be replaced.

Of course, other cleaning rules for the filter elements 3 may be provided in the water purifying device 100, for example, when the preset fixed time or the preset interval time is reached, the cleaning mechanism 4 is controlled to clean the filter elements 3. Specifically, the preset fixed time may be a certain time in the evening or a certain time in the morning, etc., and the preset interval time may be a time interval of several days in which the cleaning mechanism 4 is controlled to clean the filter member 3. As another example, when the filter element 3 has reached the end of its life, an indication is given that the filter element 3 needs to be replaced. For example, when the filter member 3 is used for 3 years, even if the flow rate of the filtered water is up to the requirement, the life of the filter member 3 is actually reached, and the filter member needs to be replaced, the water purifying apparatus 100 will give an indication that the filter member 3 needs to be replaced.

In a preferred embodiment, the time for cleaning the filter element 3 by the cleaning mechanism 4 can be in the period of non-water use of the water purifying device 100, so as to avoid affecting the use of the user.

In the present application, a water purifying method using the water purifying apparatus 100 as described above is also provided, and the water purifying apparatus 100 may include: and the pressure drop test system is used for measuring the pressure drop before and after the filter element 3. For example, the pressure drop test system may measure the pressure drop between the inlet 22 and the outlet 21 of the housing 2 to generally determine the pressure drop across the filter element 3. The water purification method may include the steps of:

when the water purifying device 100 is in normal use, the pressure drop before and after the filter member 3 is measured by the pressure drop test system.

And when the front and back pressure drops of the filter member 3 measured by the pressure drop test system rise to a third preset condition, controlling the cleaning mechanism 4 to clean the filter member 3. The third predetermined condition may be a predetermined pressure drop value compared to the pressure drop before and after the new filter element 3, for example, a pressure drop which is increased by a factor of 1.2, 1.3, 1.4, etc. under the new filter element 3. The more impurity contaminants adhere to the outer side wall of the filter member 3, the larger the value of the pressure drop across the filter member 3. Therefore, when the pressure drop rises to a high value, it is considered that the filter member 3 needs to be cleaned, and the filtering efficiency and effect cannot be ensured.

After the filter member 3 is cleaned, the pressure drop before and after the filter member 3 is measured by the pressure drop test system, and if the pressure drop before and after the filter member 3 measured by the pressure drop test system reaches a fourth preset condition, the water purifying device 100 can be used again; and if the pressure drop before and after the filter member 3 measured by the pressure drop test system does not reach the fourth preset condition, controlling the cleaning mechanism 4 to clean the filter member 3 again. The fourth preset condition may be another preset pressure drop value compared to the pressure drop before and after the new filter member 3. The pressure drop value under the fourth preset condition is lower than the pressure drop data under the third preset condition. For example, the pressure drop at the fourth predetermined condition may be 1.05, 1.1, 1.15 times, etc. that at the new filter element 3. After cleaning, after the pressure drop before and after the filtering piece 3 reaches the fourth preset condition, the filtering piece 3 is considered to be basically cleaned, the filtering efficiency and the filtering effect are recovered to a greater degree, and the normal use requirement can be met. After the filter element 3 is cleaned once, the pressure drop before and after the filter element 3 does not reach the fourth preset condition, and then the filter element 3 is considered not to be cleaned, so that the requirement of continuous normal use cannot be met. This requires the cleaning mechanism 4 to be controlled to re-clean the filter elements 3.

Similarly, when the number of times that the cleaning mechanism 4 continuously cleans the filtering member 3 again reaches a preset value, and the pressure drop of the filtering member 3 obtained by the pressure drop test system through measurement still does not reach a fourth preset condition, a prompt that the filtering member 3 needs to be replaced is sent. Of course, the water purification apparatus 100 of the present water purification method may be provided with other rules for cleaning the filter member 3 in the above-described water purification method.

Fig. 14 is a comparison graph of the flow rates of the water purifying device without the cleaning mechanism and the water purifying device of the present application under different water flow rates, as shown in fig. 14, when the water purifying device 100 is in normal use, the instantaneous flow rate thereof will decrease at a high speed along with the increase of the water flow rate, and when the water flow rate reaches a certain level, the flow rate will decrease to a point where the water purifying device cannot be used any more. If the performance of the filter member 3 is recovered without cleaning the filter member 3 in the water purifying apparatus 100, the filter member 3 needs to be directly replaced, which greatly increases the use cost of the water purifying apparatus 100. And purifier 100 in this application falls to a certain extent after the water capacity, directly washs filtering piece 3 through wiper mechanism 4, can see that after the washing is accomplished, purifier 100's the flow in the twinkling of an eye obtains effectual recovery, and the effect is obvious, and purifier 100 can normal use under the prerequisite that need not to change filtering piece 3. The water passing amount in the water purifying device 100 can reach several times of the water passing amount of the conventional water purifying device 100 without the cleaning function.

Still proposed in this application is a water purification system, which can include: the water purification apparatus 100 as described above; and the inlet of the filtering device 200 is communicated with the water outlet 21 of the water purifying device 100, and the filtering device 200 comprises an activated carbon fiber filter element. The activated carbon fiber filter element can effectively adsorb harmful substances in water, such as volatile phenol, trichloromethane, carbon tetroxide, peculiar smell and residual chlorine, and can also effectively adsorb heavy metals.

In the water purification system, the activated carbon fiber filter element is adopted to replace a granular activated carbon filter element in the prior art, and although both the granular activated carbon filter element and the activated carbon fiber filter element have the residual chlorine removal effect, experiments show that fig. 15 is a comparison graph of the residual chlorine removal rates of the activated carbon fiber filter element and the granular carbon filter element, as shown in fig. 15, along with the increase of the water passing amount in the water purification system, the residual chlorine removal rate of the granular activated carbon filter element is greatly reduced immediately at the initial stage, and then the residual chlorine removal rate is stabilized at the level of about 40% all the time. The active carbon fiber filter element has a slow reduction range of the residual chlorine removal rate in the initial stage and is then stabilized at a level of about 60 percent all the time. Under the condition of the same water passing amount, the residual chlorine removal rate of the activated carbon fiber filter element is higher than that of the granular activated carbon filter element by more than 20 percent.

In a preferred embodiment, the filter device 200 may be a hollow fiber filter cartridge, which is used in combination with an activated carbon fiber filter cartridge to achieve a better filtering effect. The hollow fiber filter element has the characteristic of high flow, and can be preferentially applied to a central water purifier with high filtration flow to meet the use requirement. In the above embodiment, the filtration precision of the water purification system can reach between 0.01um to 0.1um, and the sediment, colloid, spores, bacteria, macromolecular organic matters and the like in water can be effectively removed, so that the basic use requirement is met. Meanwhile, the hollow fiber filter element can be cleaned through the cleaning mechanism 4, the filtering effect and the efficiency of the cleaned hollow fiber filter element are better, the service life of the whole hollow fiber filter element is greatly prolonged to about 3 years, the replacement problem of the hollow fiber filter element is not needed to be considered in the period, the service life of the activated carbon fiber filter element can also reach 1-2 years, and the activated carbon fiber filter element can be conveniently replaced.

The reason why the effect of the cleaning mechanism 4 on the hollow fiber filter element after cleaning is particularly obvious is that the filtering element 3 in the central water purifier in the prior art usually uses a microfiltration membrane, the aperture of the microfiltration membrane is large, and part of colloid in water is easily clamped into the hole of the microfiltration membrane and cannot be cleaned out through the cleaning mechanism 4 at a later stage. And the aperture of the hollow fiber filter core that adopts in this application can reach 0.01um, and the colloid can only stop on the surface of hollow fiber filter core in can't getting into the aperture of hollow fiber filter core, consequently directly washes except through wiper mechanism 4 easily.

All articles and references disclosed, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional. A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A water purification device, characterized by comprising:

a housing having a water outlet and a water inlet;

2. The water purifying apparatus of claim 1, wherein both ends of the hollow fiber membrane are inserted through the partition, and a middle portion of the hollow fiber membrane is drooped down.

3. The water purifying apparatus according to claim 2, wherein one end of the hollow fiber membrane passes through the partition member, and the other end of the hollow fiber membrane is in a blocked state.

4. The water purification apparatus of claim 3, wherein the hollow fiber membrane is vertically drooped.

5. The water purification apparatus of claim 1, wherein the stirring member is located on a side of the hollow fiber membrane facing away from the partition.

6. The water purifying apparatus of claim 1, wherein the stirring member does not contact the hollow fiber membrane.

7. The water purification unit of claim 1, wherein the cleaning mechanism further comprises: a motor disposed outside the housing; one end of the transmission shaft is in transmission connection with the motor, the other end of the transmission shaft is connected with the stirring piece, and the transmission shaft penetrates through the shell.

8. The water purification apparatus of claim 7, wherein the partition has an opening therein, and the drive shaft extends through the openings of the housing, the second chamber and the partition.

9. The water purifying device of claim 8, wherein the transmission shaft is sleeved with a spacer sleeve, the spacer sleeve passes through the opening of the partition, and the spacer sleeve and the partition are relatively fixed.

10. The water purification apparatus of claim 7, wherein the transmission shaft is inserted through the housing forming the first chamber, and the transmission shaft is inserted through the housing at a position on a side of the hollow fiber membrane facing away from the partition.

11. The water purification apparatus of claim 7, wherein a radial seal is disposed between the drive shaft and the housing.

12. The water purification unit of claim 1, wherein the cleaning mechanism further comprises: the magnetic force generating mechanism is arranged outside the shell, and the magnetic transmission mechanism is positioned on one side of the separator, which is far away from the hollow fiber membrane; the transmission shaft is connected with the stirring piece; the magnetic force generating mechanism is matched with the first magnet so that the magnetic force generating mechanism can drive the first magnet to rotate.

13. The water purification apparatus of claim 12, wherein the magnetic force generating mechanism comprises: a motor: and the second magnet is connected to the motor and matched with the first magnet so as to enable the second magnet to drive the first magnet to rotate.

14. The water purifying apparatus of claim 13, wherein the second magnet is circumferentially disposed in a circumferential direction of the first magnet.

15. The water purifying device of claim 14, wherein a limiting portion protruding outward is formed on the housing, the first magnet is disposed in the limiting portion, the transmission shaft penetrates into the limiting portion, and the motor and the second magnet are connected by a bracket.

16. The water purification apparatus of claim 14, wherein the partition has an opening therein, and the drive shaft extends through the openings of the second chamber and the partition.

17. The water purifying device of claim 16, wherein the transmission shaft is sleeved with a spacer sleeve, the spacer sleeve passes through the opening of the partition, and the spacer sleeve and the partition are relatively fixed.

18. The water purification apparatus of claim 17, wherein a radial seal is disposed between the spacer sleeve and the housing.

19. The water purifying device of claim 15, wherein the transmission shaft is provided with a sliding member, and the sliding member is located in the limiting portion and is clamped with the limiting portion.

20. The water purification apparatus of claim 12, wherein the magnetic force generating mechanism comprises: a fixed rotor, said rotor mating with said first magnet, said rotor and said first magnet rotating relative to each other when said rotor is energized.

21. The water purification unit of claim 1, wherein the cleaning mechanism further comprises: a magnetic force generating mechanism disposed outside the housing; the magnetic force generating mechanism is matched with the first magnetic part so as to drive the stirring part and the first magnetic part to rotate, and the magnetic force generating mechanism and the first magnetic part are positioned on one side of the hollow fiber membrane, which is deviated from the separator.

22. The water purification apparatus of claim 21, wherein the magnetic force generating mechanism comprises: a motor; the support of connection on the motor, be provided with the second magnetism spare on the support, the second magnetism spare with first magnetism spare is pressed close to respectively the casing, the second magnetism spare with first magnetism spare matches so that the second magnetism spare can drive first magnetism spare rotates.

23. The water purifying device of claim 22, wherein a positioning member is disposed between the stirring member and the housing for fixing the stirring member at a position on the housing.

24. The water purification apparatus of claim 23, wherein the thickness of the positioning member plus the housing is less than or equal to 5 mm.

25. The water purification apparatus of claim 21, wherein the magnetic force generating mechanism comprises: the rotor is matched with the first magnetic piece, and when the rotor is electrified, the rotor and the first magnetic piece rotate relatively.

26. The water purification apparatus of claim 1, further comprising a water inlet line having a second open-close valve and a sewage line having a third open-close valve, the water inlet line being in communication with the water inlet, the sewage line being in communication with the water inlet.

27. The water purification apparatus of claim 1, wherein the housing has a drain opening therein, the drain opening communicating with the first chamber;

28. The water purification apparatus of claim 2, wherein the partition is formed of a sealing glue.

29. A water purification system, its characterized in that, water purification system includes:

a water purification apparatus as claimed in any one of claims 1 to 28;

30. A water purification device, characterized by comprising:

a shell with a water outlet, a water inlet and a water outlet;

31. A water purification method using the water purification apparatus as claimed in any one of claims 1 to 28, wherein the water purification apparatus further comprises: the flow detection device is used for measuring the filtering water flow of the hollow fiber membrane;

the water purification method comprises the following steps:

32. The water purification method of claim 31, further comprising:

33. A water purification method using the water purification apparatus as claimed in any one of claims 1 to 28, wherein the water purification apparatus further comprises: a pressure drop test system for measuring the pressure drop across the hollow fiber membranes;

the water purification method comprises the following steps:

34. The water purification method of claim 33, further comprising:

35. The water purification method of claim 31 or 33, wherein the cleaning mechanism cleans the hollow fiber membrane at a time when the water purification apparatus is not using water.

36. The water purification method of claim 31 or 33, further comprising: