CN210367223U

CN210367223U - Compound filter element group spare and water purification system

Info

Publication number: CN210367223U
Application number: CN201921252288.6U
Authority: CN
Inventors: 李友铃; 申鸿海; 胡进华; 张玉莹; 周健; 詹婷; 李一然
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-04-21
Anticipated expiration: 2029-08-02

Abstract

The utility model provides a compound filter element group spare and water purification system, compound filter element group spare includes: the device comprises a bottle body (604) and more than five stages of filter elements arranged in the bottle body (604), wherein the filter elements comprise a first-stage pretreatment filter element (201), a second-stage pretreatment filter element (202), a fine filtration filter element (203) and a post-treatment filter element (204); and the second-stage pretreatment filter element (202) is of a cylindrical structure formed by activated carbon fiber materials, and a support framework (202b) of the cylindrical structure is further arranged on the radial inner side of the second-stage pretreatment filter element (202). Through the utility model discloses the filter core collects five levels of filtering capability integratively, can also make filter element group spare and even purifier volume miniaturization when can improving the filter effect, has matchd the life-span of each filter core during the design, can also solve the problem of frequently trading the core.

Description

Compound filter element group spare and water purification system

Technical Field

The utility model belongs to the technical field of the water purification, concretely relates to compound filter element group spare and water purification system.

Background

The core spare part of purifier is the filter core of performance filtering capability, and traditional purifier contains multistage filter core, and the bottle is in large quantity and causes the complete machine volume to be bigger than normal, and the filter core at different levels trades the core cycle inconsistent, increases and trades the core inconvenient nature. In recent years, the small volume of the water purifier becomes an industry development trend, and more multi-stage composite filter elements are used on products. However, most of the existing composite filter elements are two-stage composite and three-stage composite, and compared with the traditional water purifier containing a single-stage filter element, the volume of the composite filter element is obviously reduced. However, if the multi-stage filter element of the filter element composite water purifier can play a purifying role, the volume of the water purifier can be further reduced.

Because the purifier among the prior art exists and to add multistage filtration but lead to the volume great, and exist when each filter core exclusive use to trade the core cycle inconsistent and bring frequently technical problem such as core changing in order to guarantee the filter effect, consequently the utility model discloses study design a compound filter element group spare and water purification system.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that can also reduce the space volume when the purifier among the prior art exists the more excellent filter effect of unable assurance to a compound filter element group spare and water purification system are provided.

The utility model provides a compound filter element group spare, it includes:

the bottle body and more than five stages of filter elements arranged in the bottle body comprise a first stage pretreatment filter element, a second stage pretreatment filter element, a fine filtration filter element and a post-treatment filter element; the fluid sequentially passes through the first-stage pretreatment filter element, the second-stage pretreatment filter element, the fine filtration filter element and the post-treatment filter element along the flowing direction of the fluid to be filtered; and the second-stage pretreatment filter element is of a tubular structure formed by activated carbon fiber materials, and a support framework of the tubular structure is further arranged on the radial inner side of the second-stage pretreatment filter element.

Preferably, the first and second electrodes are formed of a metal,

the supporting framework is also provided with at least one water through hole in a mode of penetrating through the inner wall and the outer wall of the supporting framework; and/or a water inlet is arranged at the bottom or the top of the bottle body, and a pure water outlet and a concentrated water outlet are also arranged on the bottle body and at the same side of the water inlet; and/or the first-stage pretreatment filter element is made of folded paper PP and/or spray-melted PP; and/or the fine filtering filter element is a roll type reverse osmosis filter element or a roll type nanofiltration filter element; and/or the post-treatment filter element is a filter element made of a composite carbon material with a degerming function.

Preferably, the first and second electrodes are formed of a metal,

the first-stage pretreatment filter element and the second-stage pretreatment filter element are located at the same height and are arranged inside and outside, and the first-stage pretreatment filter element is sleeved outside the second-stage pretreatment filter element.

Preferably, the first and second electrodes are formed of a metal,

meticulous filter core is located first order preliminary treatment filter core or the below of second level preliminary treatment filter core, just aftertreatment filter core is located by the cover meticulous inside of filtering the filter core.

Preferably, the first and second electrodes are formed of a metal,

the fine filtering filter element is characterized in that a central tube is further arranged inside the fine filtering filter element and outside the stage post-treatment filter element, and a first guide groove is formed in the outer wall surface of the central tube, so that fluid penetrates into the first guide groove through the fine filtering filter element and is guided.

Preferably, the first and second electrodes are formed of a metal,

the interior of the central tube is provided with a sixth cavity, the aftertreatment filter element is arranged in the sixth cavity, the first guide groove extends along the axial direction of the central tube in a straight line or a curve, and the first guide groove is not communicated with the sixth cavity.

Preferably, the first and second electrodes are formed of a metal,

the upper end of the first guide groove is further communicated with a second guide groove, the second guide groove is arranged between the inner wall and the outer wall of the central tube, and the other end of the second guide groove is communicated with the upper end of the central tube to be communicated with the sixth cavity.

Preferably, the first and second electrodes are formed of a metal,

the interior of the aftertreatment cartridge has a seventh cavity, and fluid in the sixth cavity permeates through the aftertreatment cartridge into the seventh cavity.

Preferably, the first and second electrodes are formed of a metal,

the bottom of the bottle body is provided with a pure water outlet, and the seventh cavity in the post-treatment filter element downwards passes through the eighth cavity and is communicated with the pure water outlet.

Preferably, the first and second electrodes are formed of a metal,

the bottom of the bottle body is also provided with a concentrated water outlet, and the lower end of the fine filtering filter element can be communicated with the concentrated water outlet.

Preferably, the first and second electrodes are formed of a metal,

the top end of the bottle body is provided with a first connecting end cover so as to seal the upper end of the bottle body; and/or a second connecting end cover is arranged at the upper ends of the first-stage pretreatment filter element and the second-stage pretreatment filter element, and the second connecting end cover is fixedly arranged on the bottle body; and/or a third connecting end cover is arranged at the bottom end of the first-stage pretreatment filter element and the second-stage pretreatment filter element, and a water passing channel formed by ribs is arranged on the outer wall of the third connecting end cover;

when a center tube is also included:

and/or a fourth connecting end cover is arranged above the central pipe, and a gap is formed between the upper end of the central pipe and the fourth connecting end cover; and/or a sixth connecting end cover is further arranged below the post-treatment filter element, and a water passing channel formed by ribs is arranged on the outer wall of the sixth connecting end cover.

Preferably, the first and second electrodes are formed of a metal,

a first sealing element is arranged between the top end of the post-treatment filter element and the inner wall of the central tube; and/or the position where the upper part of the fine filtering filter element is connected with the third connecting end cover is wound on the outer walls of the third connecting end cover and the fine filtering filter element together through a first adhesive tape; and/or the position where the lower part of the fine filtering filter element is connected with the sixth connecting end cover is wound on the outer walls of the sixth connecting end cover and the fine filtering filter element together through a second adhesive tape; and/or a fourth sealing element is arranged between the lower peripheral wall of the post-treatment filter element and the inner peripheral wall of the central tube; and/or a fifth sealing element is further arranged between the periphery of the bottom end of the central tube and the sixth connecting end cover; and/or a sixth sealing piece is arranged on the peripheral wall of the lower end of the sixth connecting end cover.

Preferably, the first and second electrodes are formed of a metal,

a first cavity is formed between the bottom of the sixth connecting end cover and the bottle body; and/or a second cavity is formed between the periphery of the fine filtering filter element and the bottle body; and/or a third cavity is formed between the periphery of the first-stage pretreatment filter element and the bottle body; and/or the interior of the second-stage pretreatment filter element is provided with a fourth cavity extending in the vertical direction; and/or a fifth cavity is arranged between the third connecting end cover and the second sealing element; and/or an eighth cavity is formed between the bottom end of the post-treatment filter element and the central tube; and/or a ninth cavity is formed between the bottom of the central pipe and the sixth connecting end cover and is communicated with the concentrated water outlet; and/or a tenth cavity is formed between the bottom of the sixth connecting end cover and the concentrated water outlet.

The utility model also provides a water purification system, it includes preceding arbitrary compound filter element group spare.

The utility model provides a pair of compound filter element group spare and water purification system has following beneficial effect:

the utility model discloses a set up the filter core more than five grades in bottle, along the flow direction fluid pass through in proper order the first order preliminary treatment filter core, the second grade preliminary treatment filter core, meticulous filter core, the aftertreatment filter core is filtered, integral type composite filter core, it contains five grades of filter cores, can use the purification performance that exerts on the purifier alone, compare in current single-stage filter core or second grade, tertiary or even four-stage filter core, can realize five grades of filter effects in a bottle, can also make filter core subassembly and even purifier volume miniaturization when effectively improving filter effect, the filter core collects five grades of filter functions integratively, the life-span of each filter core has been matchd in the design, and the volume has been considered, so can not cause bulky, only can be than when independent filter core small; all water inlets such as a water inlet, a pure water outlet, a concentrated water outlet and the like are arranged at one end of the bottle body, so that the problem of large space occupation ratio caused by the distribution of two ends of the interface can be effectively avoided;

and set up the filter core in through a bottle, it is integrative that the five-stage filtering function of effective collection, the life-span of each filter core has been matchd during the design, compare in single-stage filter core or second grade, life-span between the bottle of tertiary even level four filter core does not match and leads to trading the inconsistent problem in core cycle, bring the frequent problem of trading the core, the life of the inside filter core of bottle is all unanimous basically when changing inside filter core, consequently, trade the core cycle unanimous, an organic whole trade the core, the frequent problem of trading that the inconsistent core cycle of trading that exists when effectively avoiding each filter core exclusive use brought.

Drawings

FIG. 1 is a schematic view of the three-dimensional internal structure (flow path direction) of the composite filter element assembly of the present invention and the structures of the filter element portion and the central tube, etc. are marked;

FIG. 2 is a schematic perspective internal view of the composite filter element assembly of FIG. 1 with the seal portion and cavity portion labeled;

fig. 3 is a partially enlarged structural view of a portion C in fig. 2;

FIG. 4 is a block diagram of the handle of the filter element assembly of the present invention;

FIG. 5 is a schematic structural view of the support frame of the present invention;

FIG. 6 is a schematic view of the external structure of the central tube of the composite filter element assembly of the present invention;

FIG. 7 is a schematic view of the external structure of the composite filter element assembly of the present invention;

fig. 8 is an assembly structure diagram of the sealing assembly of the fine filter cartridge of the present invention.

The reference numbers in the figures denote:

10. a composite filter element; 201. a first stage pretreatment filter element; 202. a second stage pre-treatment filter element; 202a, a water through hole; 202b, supporting the framework; 203. a fine filtration filter element; 204. post-treatment of the filter element; 301. a first seal member; 302. a first adhesive tape; 303. a second tape; 304. a fourth seal member; 305. a fifth seal member; 306. a sixth seal member; 307. a water inlet one-way valve; 308. a pure water stop valve; 309. a dense water stop valve; 401. a first connecting end cap; 402. a second connecting end cap; 403. a third connecting end cap; 4031. a third end cover diversion trench; 404. a fourth connecting end cap; 405. a fifth connecting end cover; 406. a sixth connecting end cover; 4061. a sixth end cover flume; 501. a first cavity; 502. a second cavity; 503. a third cavity; 504. a fourth cavity; 505. a fifth cavity; 506. a sixth cavity; 507. a seventh cavity; 508. an eighth cavity; 509. a ninth cavity; 510. a tenth cavity; 511. a gap; 600. a handle; 601. a handle fixing device; 602. a central tube; 604. a bottle body; 701. a water inlet; 702. a concentrated water outlet; 703. a pure water outlet; A. a first guide groove; B. a second guide groove; D. sealing the groove.

Detailed Description

As shown in fig. 1-8, the present invention provides a composite filter element assembly, comprising:

the device comprises a bottle body 604 and more than five stages of filter elements arranged in the bottle body 604, wherein the filter elements comprise a first-stage pretreatment filter element 201, a second-stage pretreatment filter element 202, a fine filtration filter element 203 and a post-treatment filter element 204; along the flowing direction of the fluid, the fluid passes through the first stage pretreatment filter element 201, the second stage pretreatment filter element 202, the fine filtration filter element 203 and the post-treatment filter element 204 in sequence to be filtered; (ii) a The second-stage pretreatment filter element 202 is of a cylindrical structure made of activated carbon fiber, a support framework 202b of the cylindrical structure is further arranged on the radial inner side of the second-stage pretreatment filter element 202, a water inlet 701 is arranged at the bottom or the top of the bottle body 604, and a pure water outlet 703 and a concentrated water outlet 702 are further arranged on the same side of the bottle body 604 as the water inlet 701.

The utility model discloses a set up the filter core more than five grades in bottle, along the flow direction fluid pass through in proper order the first order preliminary treatment filter core, the second grade preliminary treatment filter core, meticulous filter core, the aftertreatment filter core is filtered, integral type composite filter core, it contains five grades of filter cores, can use the purification performance that exerts on the purifier alone, compare in current single-stage filter core or second grade, tertiary or even four-stage filter core, can realize five grades of filter effects in a bottle, can also make filter core subassembly and even purifier volume miniaturization when effectively improving filter effect, the filter core collects five grades of filter functions integratively, the life-span of each filter core has been matchd in the design, and the volume has been considered, so can not cause bulky, only can be than when independent filter core small; the utility model discloses an active carbon fiber of first order preliminary treatment filter core is soft paper form, batching tube-shape, supports through the skeleton, and this composite filter core's advantage lies in that active carbon fiber gets rid of the ability reinforce of chlorine residue, compares in paper folding and carbon-point its paper folding quantity can increase on performance demand size matches, and it can be better to receive dirty volume.

And all mouths of a river such as a water inlet, a pure water outlet, a concentrated water outlet and the like are arranged at one end of the bottle body, so that the problem of large space occupation ratio caused by the distribution of the two ends of the interface can be effectively avoided.

Preferably, the first and second electrodes are formed of a metal,

the support framework 202b is also provided with at least one water through hole 202a in a form of penetrating through the inner wall and the outer wall of the support framework; and/or the first-stage pretreatment filter element 201 is made of folded paper PP and/or spray-melted PP; and/or the fine filtering filter element 203 is a roll type reverse osmosis filter element or a roll type nanofiltration filter element; and/or the post-treatment filter element 204 is a filter element made of a composite carbon material with a sterilization function, preferably a silver-loaded activated carbon filter element.

The support framework can effectively support the first-stage filter element of the activated carbon fiber, and water can enter the inner cavity of the filter element through the limber holes so as to enter the third-stage filter element; the first-stage pretreatment filter element 201 can be spray-melted PP cotton or folded PP cotton, and has the main function of performing first-stage filtration to remove large suspended matters, silt, rust and other pollutants in a water body; the second-stage pretreatment filter element 202 the active carbon fiber of the first-stage pretreatment filter element of the utility model is in a soft paper shape and is rolled into a cylinder shape, and is supported by the framework, the composite filter element has the advantages that the active carbon fiber has strong capacity of removing residual chlorine, compared with the folded paper and the carbon rod, the folded paper consumption can be increased when the performance requirement size is matched, and the dirt receiving capacity is better; the fine filtering filter element 203 can be a roll type reverse osmosis filter element or a roll type nanofiltration filter element, and has the function of fine filtering, so that heavy metal ions, micromolecular organic matters and the like in the water body can be removed, and the deep purification of the water body is realized; the post-treatment filter element 204 is a silver-loaded activated carbon filter element, and can remove bacteria (through silver) while improving the water production taste (through carbon), so that two-stage filtration is realized through one filter element, and the effect of five-stage filtration of the whole filter element assembly is achieved.

Preferably, the first and second electrodes are formed of a metal,

the first-stage pretreatment filter element 201 and the second-stage pretreatment filter element 202 are located at the same height and are arranged inside and outside, and the first-stage pretreatment filter element 201 is sleeved outside the second-stage pretreatment filter element 202. Therefore, water flow enters the internal second-stage pretreatment filter element for treatment after being purified by the external first-stage pretreatment filter element, and the pretreatment or rough filtration before fine filtration is realized.

Preferably, the first and second electrodes are formed of a metal,

the fine filter element 203 is located below the first stage pretreatment filter element 201 or the second stage pretreatment filter element 202, and the post-treatment filter element 204 is sleeved inside the fine filter element 203.

The layout form of the filter element structure is as follows: the first-stage pretreatment filter element 201 is wrapped or nested on the outer surface of the second-stage pretreatment filter element 202 to form an inner and outer structural layout; the rear three-stage filter element and the front two-stage pretreatment filter element are in an up-and-down structural layout; a post-treatment filter element 204 (two-stage post-treatment) is filled in the filter element central tube of the fine filter element 203; such structural layout can save the interior tubular construction who adopts among the prior art effectively, realizes fixing the setting to above-mentioned two-stage preliminary treatment filter core through a plurality of connection end covers, realizes the fixed setting effect to the fixed setting of meticulous filtration filter core and two-stage aftertreatment filter core through arranging of a plurality of connection end covers and center tube, has reduced the volume effectively, has realized the volume miniaturization.

Preferably, the first and second electrodes are formed of a metal,

a central tube 602 is further disposed inside the fine filter element 203 and outside the aftertreatment filter element 204, and a first guide groove a is disposed on an outer wall surface of the central tube 602, so that the fluid penetrates through the fine filter element 203 into the first guide groove a and is guided. Can handle the supporting role that filter core and meticulous filter core realized the center pin through the setting of center tube to back two-stage, and can also collect and produce water, and can make the water that meticulous filter core came can not directly get into the center tube insidely through first guide way, but along the direction of first guide way at the center tube outer wall, further strengthened the further filterable length of meticulous filter core like this and increased the filter length of the inside two-stage aftertreatment filter core of center tube, further effectively improved the filter effect.

Preferably, the first and second electrodes are formed of a metal,

the center tube 602 has a sixth cavity 506 therein, the aftertreatment filter element 204 is disposed in the sixth cavity 506, the first guide groove a extends along a straight line or a curved line in the axial direction of the center tube 602, and the first guide groove a does not communicate with the sixth cavity 506. This is the utility model discloses a preferred structural style of center tube, through the mode that first guide way A extends along the axis direction and does not communicate with the sixth cavity for inside water that comes from meticulous filter core can not directly get into the center tube, but along the upper portion of first guide way at center tube outer wall direction to center tube, the further filterable length of meticulous filter core and the filtration length of having increased the inside two-stage aftertreatment filter core of center tube have been increased effectively like this, and make this filtration length maximize, the filter effect has further effectively been improved.

Preferably, the first and second electrodes are formed of a metal,

the upper end of the first guide groove A is further communicated with a second guide groove B, the second guide groove B is arranged between the inner wall and the outer wall of the central pipe 602, and the other end of the second guide groove B is communicated with the upper end of the central pipe 602 to be communicated with the sixth cavity 506. Through set up the second guide way rather than leading out the sixth cavity at first guide way lower extreme setting rather than communicating the second guide way that communicates with it and make the second guide way be located between the interior outer wall and the upper end intercommunication play center tube, can be through the upper portion of second guide way with the water direction that first guide way came to the center tube and with it leading-in to the sixth cavity, further increased filter length to prevent that rivers from outwards leaking.

Preferably, the first and second electrodes are formed of a metal,

the interior of the aftertreatment cartridge 204 has a seventh cavity 507, and fluid in the sixth cavity 506 permeates through the aftertreatment cartridge 204 into the seventh cavity 507. Through the inside seventh cavity that sets up of aftertreatment filter core for water in the sixth cavity gets into and is filtered purification reentrant seventh cavity behind the aftertreatment filter core, provides clean water, makes the filter effect better.

Preferably, the first and second electrodes are formed of a metal,

the bottom end of the bottle body 604 is provided with a pure water outlet 703, and the seventh cavity 507 inside the post-treatment filter element 204 passes through the eighth cavity 508 downward and is communicated with the pure water outlet 703. And the water after passing through the fine filtering filter element flows out through a post-treatment filter element with two-stage filtering, and is discharged from the bottom end to obtain pure water.

Preferably, the first and second electrodes are formed of a metal,

the bottom end of the bottle body 604 is also provided with a concentrated water outlet 702, and the lower end of the fine filtering filter element 203 can be communicated with the concentrated water outlet 702. The water filtered by the fine filter element without passing through the two subsequent stages of filter elements is discharged through the ninth cavity 509 and the concentrated water outlet to obtain concentrated water (which has high salt content and cannot be introduced).

Preferably, the first and second electrodes are formed of a metal,

the top end of the bottle body 604 is provided with a first connection end cap 401 to seal the upper end of the bottle body 604; and/or a second connecting end cover 402 is arranged at the upper end of the first-stage pretreatment filter element 201 and the upper end of the second-stage pretreatment filter element 202, and the second connecting end cover 402 is fixedly arranged on the bottle body 604; and/or a third connecting end cover 403 is further arranged at the bottom end of the first-stage pretreatment filter element 201 and the second-stage pretreatment filter element 202, and a water channel (i.e. a third end cover water guide groove 4031) formed by ribs is arranged on the outer wall of the third connecting end cover 403 to allow water to pass through (the ribs refer to a protruding strip-shaped structure protruding outwards on the outer wall);

when further comprising a center tube 602:

and/or a fourth connecting end cover 404 is further arranged above the central pipe 602, and a gap 511 is formed between the upper end of the central pipe 602 and the fourth connecting end cover 404; and/or a sixth connecting end cover 406 is further arranged below the post-treatment filter element 204, and a water channel (namely, a sixth end cover water guide groove 4061) formed by ribs is arranged on the outer wall of the sixth connecting end cover 406 to allow the fluid to flow through.

This is the utility model discloses a five connection end cover's preferred structural style can realize the effect of sealing and support to the bottle upper end through first connection end cover, forms to carry out the supporting role to first and second level preliminary treatment filter core upper end through second connection end cover, and the third connection end cover realizes supporting and sealing the lower extreme of first and second level preliminary treatment filter core, and the fourth connection end cover can carry out the supporting role to the center tube upper end, and the sixth connection end cover realizes supporting the aftertreatment filter core.

To successfully prepare the composite filter element, it needs to include an end cap portion. Specifically, the bottle body sealing device comprises a first connecting end cover 401 which is a bottle body end cover and is connected with the bottle body in a spin-melting or threaded manner to seal the bottle body; a second connection end cap 402, which is the upper end cap of the first and second stage pretreatment filter elements, and is used for fixing and sealing; the third connecting end cover 403, specifically the lower end covers of the first and second-stage pretreatment filter elements, is used for limiting and fixing the first and second-stage filter elements, and is connected with the fine filtration filter element 203 to realize water path intercommunication, and in addition, the limiting strips on the side wall of the end cover simultaneously provide the function of a water passing channel; a fourth connection end cap 404, which is an upper end cap of the post-treatment filter element and is used for fixing; sixth connection end cover 406, it is the lower end cover of meticulous filtration filter core, and the effect is separately for realizing into water route and meticulous filtration filter core water route, simultaneously, has spacing on its end cover, plays water channel's effect.

Preferably, the first and second electrodes are formed of a metal,

a first sealing element 301 is arranged between the top end of the post-treatment filter element 204 and the inner wall of the central tube 602; and/or the position where the upper part of the fine filter element 203 is connected with the third connecting end cover 403 is jointly wound on the outer walls of the third connecting end cover 403 and the fine filter element 203 through the first adhesive tape 302; and/or the position where the lower part of the fine filter element 203 is connected with the sixth connecting end cover 406 is jointly wound on the outer walls of the sixth connecting end cover 406 and the fine filter element 203 through a second adhesive tape 303; and/or a fourth seal member 304 is disposed between the lower outer peripheral wall of the aftertreatment cartridge 204 and the inner peripheral wall of the center tube 602; (ii) a And/or a fifth sealing element 305 is further arranged between the lower part of the central tube 602 and the sixth connecting end cover; and/or a sixth sealing member 306 is arranged on the peripheral wall of the lower end of the sixth connecting end cover 406.

The sealing between the post-treatment filter element and the central tube can be realized through the first sealing element, so that the water flow is reduced; the upper part of the fine filtering filter element and the bottle body are sealed through the first adhesive tape, so that water can only flow out downwards through the fine filtering filter element, and the water is fully subjected to fine filtering treatment; the sealing between the lower part of the fine filtering filter element and the sixth connecting end cover is realized through the second adhesive tape, so that water from the fine filtering filter element cannot flow out through the gap and enters the post-treatment filter element through the diversion trench of the central tube to be filtered, and the filtering effect is improved; the sealing effect between the bottom end of the treatment filter element and the central tube is realized through the fourth sealing element, so that water from the post-treatment filter element can only enter the central tube from the seventh cavity downwards, leakage is prevented, and the filtering effect is improved; the sealing effect between the post-treatment filter element and the central tube is realized through the fifth sealing element, so that water can only flow downwards from the middle part of the post-treatment filter element, and the filtering effect is improved; the sealing effect between the sixth connecting end cover and the bottom end of the central pipe can be ensured through the sixth sealing element, so that water coming out of the fine filtering filter element cannot leak to the pure water outlet from the position between the sixth connecting end cover and the central pipe.

In order to successfully prepare the composite filter element, it needs to include a seal member portion. The first sealing element 301 is an O-ring which is close to the water inlet end of the central pipe and is used for sealing the cavity of the central pipe 602 by matching with the fourth connecting end cover 404; in this scheme, RO seals (meticulous filter core) for forming sealedly with two end covers, and its mode sealed with the end cover is the viscose, fixes the end cover at the filter core surface through the sticky tape, forms a seal chamber with two end covers. Meanwhile, the upper sealing end cover is also a manufactured end cover of the pretreatment filter element. The characteristic that an independent sealing cavity is not needed is that the space between the outer wall of the RO filter element and the inner wall of the bottle body is a water inlet channel of the pretreatment filter element (RO does not need an independent sealing cavity or a sealed cylinder body inside the composite filter element structure, so that the space occupation and the use of parts are reduced; 4) RO sealing is realized, a traditional brine sealing ring is not needed, and sealing is realized through the combined action of an end cover design and an adhesive tape); the fourth seal 304 is an O-ring; the fifth seal 305 is an O-ring; the sixth seal 306 is an O-ring that seals against the center tube 602. The sealing elements are used for preventing water leakage and realizing sealing.

Preferably, the first and second electrodes are formed of a metal,

a first cavity 501 is formed between the bottom end of the sixth connecting end cap 406 and the bottle body 604; and/or a second cavity 502 is formed between the fine filter cartridge 203 and the vial 604; and/or a third cavity 503 is arranged between the periphery of the first-stage pretreatment filter element 201 and the bottle body 604; and/or, the second-stage pretreatment cartridge 202 has a fourth cavity 504 extending vertically and upwardly therein; and/or a fifth cavity 505 is formed between the lower end of the third connecting end cover 403 and the fine filtering filter element 203; and/or, the center tube 602 has a sixth cavity 506 inside; and/or, the interior of the aftertreatment filter element 204 has a seventh cavity 507; and/or, the bottom end of the aftertreatment cartridge 204 and the interior of the center tube 602 form an eighth cavity 508; and/or a ninth cavity 509 is formed between the bottom end of the central tube 602 and the sixth connecting end cap 406; and/or a tenth cavity 510 is arranged at the bottom end of the sixth connecting end cover 406 and communicated with the concentrated water outlet 702.

In order to successfully prepare the composite filter element, it needs to include a cavity portion. The first cavity 501 is a raw water inlet cavity, and is formed by the water inlet, the sixth connecting end cover 406 and the bottle body 604; the second cavity 502 is formed by a sixth connecting end cover 406, the fine filtering element 203, a third connecting end cover 403 and a bottle body 604 and is a raw water inlet cavity; the third cavity 503 is composed of a second connecting end cover 402, a third connecting end cover 403, a bottle body 604, a first stage pretreatment filter element and a second stage pretreatment filter element, and is a raw water inlet cavity. Wherein, the first cavity 501, the second cavity 502 and the third cavity 503 are communicated. The fourth cavity 504 is a second pre-treatment filter element cavity and is a filtered water outlet cavity; the fifth cavity 505 is communicated with the fourth cavity 504 and is a fine filter element water inlet cavity; the sixth cavity 506 is the interior of the center tube and the water inlet cavity of the post-treatment filter element; the seventh cavity 507 is a post-treatment filter element water outlet cavity; the eighth cavity 508 is a cavity through which the post-treatment filter element treated water flows out; the ninth cavity 509 communicates with the tenth cavity 510 to allow the concentrate of the fine filter cartridge to flow out of the cavities.

The utility model also provides a water purification system, it includes preceding arbitrary compound filter element group spare. The utility model discloses a set up the filter core more than five grades in bottle, along the flow direction fluid pass through in proper order the first order preliminary treatment filter core, the second grade preliminary treatment filter core, meticulous filter core, the aftertreatment filter core is filtered, integral type composite filter core, it contains five grades of filter cores, can use the purification performance that exerts on the purifier alone, compare in current single-stage filter core or second grade, tertiary or even four-stage filter core, can realize five grades of filter effects in a bottle, can also make filter core subassembly and even purifier volume miniaturization when effectively improving filter effect, the filter core collects five grades of filter functions integratively, the life-span of each filter core has been matchd in the design, and the volume has been considered, so can not cause bulky, only can be than when independent filter core small;

The overall appearance of the composite filter element is shown in fig. 4, and the bottle body is provided with a handle, so that the composite filter element is convenient to take when the core is replaced. Expectable, the bottle only can realize business turn over water function, replacement function for the structure of matching compound filter element group spare, is not limited to the outward appearance that the drawing provided.

The utility model discloses a composite filter element, intake, pure water and dense mouth of a river one end overall arrangement are the utility model discloses a technical characterstic. The utility model discloses a traditional multistage filter core of composite filter core fungible uses alone one the utility model discloses a water purification equipment can be prepared to composite filter core. The utility model discloses a filter core upper and lower, interior outer structure to and the upper and lower, interior outer structure of subassembly realize this integrative composite filter core's mode for the cooperation.

The composite filter element structure simultaneously comprises an upper structure, a lower structure, an inner structure and an outer structure. The upper structure and the lower structure are separated by means of end covers, but the upper space and the lower space are communicated spaces, the side wall of the end cover of the communicated passage is provided with a water diversion groove, and the end cover is a shared end cover of a pretreatment filter element and a fine filtration filter element at the same time, so that the space is saved; its interior outer structure realizes that the basis is the center tube, and this center tube is different from traditional center tube, has big cavity characteristic, can be used to load aftertreatment filter core filter media, does not have the hole of permeating water on this center tube simultaneously, and its diversion structure is the leading flume of evenly distributed on the surface, and multiplicable product water is derived. One end of the water port is distributed and comprises a pressurized water inlet, a pure water outlet and a concentrated water outlet, the number of the interfaces is small, and the longitudinal space occupation caused by the distribution of the two ends of the interfaces can be effectively reduced. The system principle is water source-pump-pretreatment-fine filtering element-post-treatment filtering element, and the composite filtering element can be applied to table-board type water purifiers, water purifying drinking machines and the like.

In order to achieve the above purpose, the utility model discloses the following technical scheme of accessible realizes:

1) in order to successfully prepare the composite filter element, it needs to include a multi-stage filter element.

A first stage pretreatment filter element 201, a second stage pretreatment filter element 202, a fine filtration filter element 203 and a post-treatment filter element 204. The first-stage pretreatment filter element can be spray-melted PP cotton or folded paper PP cotton, and mainly plays a role in performing first-stage filtration to remove large suspended matters, silt, rust and other pollutants in a water body; the active carbon fiber of the first-stage pretreatment filter element of the utility model is soft paper-shaped and rolled into a cylinder shape, and supported by the framework, the composite filter element has the advantages that the active carbon fiber has strong capacity of removing residual chlorine, compared with the folded paper and the carbon rod, the folded paper consumption can be increased in the matching of performance required sizes, and the dirt receiving capacity is better; the fine filtering filter core can be a roll type reverse osmosis filter core or a roll type nanofiltration filter core, and has the function of fine filtering, so that heavy metal ions, micromolecular organic matters and the like in the water body can be removed, and the deep purification of the water body is realized; the post-treatment filter core is for carrying silver active carbon filter core, and its effect can also the degerming (through silver) in order to improve product water taste (through the charcoal), realizes the two-stage filtration through a filter core to reach the whole five-stage filterable effect of filter element group spare. Correspondingly, in order to successfully prepare the composite filter element, the layout form of the filter element structure is as follows: the first-stage pretreatment filter element 201 is wrapped or nested on the outer surface of the second-stage pretreatment filter element 202 to form an inner and outer structural layout; the rear three-stage filter element two-stage post-treatment filter element is filled in the central tube of the fine filter element.

2) To successfully prepare the composite filter element, it needs to include an end cap portion.

3) In order to successfully prepare the composite filter element, it needs to include a seal member portion.

The first sealing element 301 is an O-ring which is close to the water inlet end of the central pipe and is used for sealing the cavity of the central pipe 602 by matching with the fourth connecting end cover 404; the upper part of the fine filter element 203 is connected with the third connecting end cover 403, and the position of the upper part of the fine filter element is wound on the outer walls of the third connecting end cover 403 and the fine filter element 203 together through a first adhesive tape 302; and/or the position where the lower part of the fine filter element 203 is connected with the sixth connecting end cover 406 is jointly wound on the outer walls of the sixth connecting end cover 406 and the fine filter element 203 through a second adhesive tape 303; the fourth seal 304 is an O-ring; the fifth seal 305 is an O-ring; the sixth seal 306 is an O-ring that seals against the center tube 602. The sealing elements are used for preventing water leakage and realizing sealing.

4) In order to successfully prepare the composite filter element, it needs to include a cavity portion.

The first cavity 501 is a raw water inlet cavity, and is formed by the water inlet, the sixth connecting end cover 406 and the bottle body 604; the second cavity 502 is formed by a sixth connecting end cover 406, the fine filtering element 203, a third connecting end cover 403 and a bottle body 604 and is a raw water inlet cavity; the third cavity 503 is composed of a second connecting end cover 402, a third connecting end cover 403, a bottle body 604, a first stage pretreatment filter element and a second stage pretreatment filter element, and is a raw water inlet cavity. Wherein, the first cavity 501, the second cavity 502 and the third cavity 503 are communicated. The fourth cavity 504 is a second pre-treatment filter element cavity and is a filtered water outlet cavity; the fifth cavity 505 is communicated with the fourth cavity 504 and is a fine filter element water inlet cavity; the sixth cavity 506 is the interior of the center tube and the water inlet cavity of the post-treatment filter element; the seventh cavity 507 is a post-treatment filter element water outlet cavity; the eighth cavity 508 is a cavity through which the post-treatment filter element treated water flows out; the ninth cavity 509 communicates with the tenth cavity 510 to allow the concentrate of the fine filter cartridge to flow out of the cavities.

5) In order to successfully prepare the composite filter element, the composite filter element also needs to comprise the parts shown in figures 1-2.

A bottle body 604, which is an outer bottle body of the whole composite filter element; the sealing rubber plug has the sealing function when the filter element is not used. A central tube 602, which is provided with no through water diversion hole, and is different from the traditional central tube structure, the surface of the central tube has a water diversion groove for exerting the water diversion function, a first guide groove a is arranged on the surface of the central tube and used for collecting the water produced by the fine filter element, and a second guide groove a is arranged on the side wall of the tail end of the central tube 602 and used for guiding the water collected by the first guide groove a out and guiding the water produced to the sixth cavity 506 under the action of the fourth connecting end cover 404; in addition, the space in the cavity of the central tube can be used for placing filter materials. The limiting device is used for limiting the first limiting position, is integrally prepared with the third connecting end cover 403 and is used for positioning the fine filtering filter element 203; the second limit is integral with the center tube 602 and functions to position the aftertreatment filter element 204.

6) In order to successfully prepare the composite filter element, a water gap is required to be contained, and one end of the water gap is arranged.

The first water inlet is a raw water inlet 701, and the inlet water of the first water inlet sequentially passes through the first cavity 501, the second cavity 502 and the third cavity 503 and then enters the first-stage pretreatment filter element 201; the second water inlet is a pure water outlet 703, and the preceding-stage inlet water of the second water inlet enters the pure water outlet 703 through the sixth cavity 506, the seventh cavity 507 and the eighth cavity 508 in sequence; the third water outlet is a concentrated water outlet 702, and the front-stage inlet water of the third water outlet enters the concentrated water outlet 702 after passing through the fourth cavity 504, the fifth cavity 505, the sixth cavity 506, the ninth cavity 509 and the tenth cavity 510 in sequence.

7) The composite filter element has the overall appearance shown in fig. 4-7, and the bottle body is provided with a handle (not shown) for convenient taking when the core is replaced. Expectable, the bottle only can realize business turn over water function, replacement function for the structure of matching compound filter element group spare, is not limited to the outward appearance that the drawing provided.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A composite filter element assembly, comprising: the method comprises the following steps:

the device comprises a bottle body (604) and more than five stages of filter elements arranged in the bottle body (604), wherein the filter elements comprise a first-stage pretreatment filter element (201), a second-stage pretreatment filter element (202), a fine filtration filter element (203) and a post-treatment filter element (204); the fluid sequentially passes through the first-stage pretreatment filter element (201), the second-stage pretreatment filter element (202), the fine filtration filter element (203) and the post-treatment filter element (204); and the second-stage pretreatment filter element (202) is of a cylindrical structure formed by activated carbon fiber materials, and a support framework (202b) of the cylindrical structure is further arranged on the radial inner side of the second-stage pretreatment filter element (202).

2. The composite filter element assembly of claim 1, wherein:

the supporting framework (202b) is also provided with at least one water through hole (202a) in a mode of penetrating through the inner wall and the outer wall of the supporting framework; and/or a water inlet (701) is arranged at the bottom or the top of the bottle body (604), and a pure water outlet (703) and a concentrated water outlet (702) are also arranged on the bottle body (604) and at the same side position as the water inlet (701); and/or the material of the first-stage pretreatment filter element (201) is folded paper PP and/or spray-melted PP; and/or the fine filtering filter element (203) is a roll type reverse osmosis filter element or a roll type nanofiltration filter element; and/or the post-treatment filter element (204) is a filter element made of composite carbon material with a sterilization function.

3. The composite filter element assembly of claim 1 or 2, wherein:

the first-stage pretreatment filter element (201) and the second-stage pretreatment filter element (202) are located at the same height and are arranged inside and outside, and the first-stage pretreatment filter element (201) is sleeved outside the second-stage pretreatment filter element (202).

4. The composite filter element assembly according to any one of claims 1-2, wherein:

the fine filtering filter element (203) is positioned below the first-stage pretreatment filter element (201) or the second-stage pretreatment filter element (202), and the post-treatment filter element (204) is sleeved inside the fine filtering filter element (203).

5. The composite filter element assembly according to any one of claims 1-2, wherein:

a central pipe (602) is further arranged inside the fine filtering filter element (203) and outside the post-treatment filter element (204), and a first guide groove (A) is formed in the outer wall surface of the central pipe (602), so that fluid penetrates into the first guide groove (A) through the fine filtering filter element (203) and is guided.

6. The composite filter element assembly of claim 5, wherein:

the center pipe (602) is internally provided with a sixth cavity (506), the aftertreatment filter element (204) is arranged in the sixth cavity (506), the first guide groove (A) extends along the axial direction of the center pipe (602) in a straight line or a curve, and the first guide groove (A) is not communicated with the sixth cavity (506).

7. The composite filter element assembly of claim 6, wherein:

the upper end of the first guide groove (A) is further communicated with a second guide groove (B), the second guide groove (B) is arranged between the inner wall and the outer wall of the central pipe (602), and the other end of the second guide groove (B) is communicated with the upper end of the central pipe (602) to be communicated with the sixth cavity (506).

8. The composite filter element assembly of claim 6, wherein:

the interior of the aftertreatment cartridge (204) has a seventh cavity (507), and fluid in the sixth cavity (506) permeates through the aftertreatment cartridge (204) into the seventh cavity (507).

9. The composite filter element assembly of claim 8, wherein:

the pure water outlet (703) is arranged at the bottom end of the bottle body (604), and the seventh cavity (507) in the post-treatment filter element (204) downwards passes through the eighth cavity (508) and is communicated with the pure water outlet (703).

10. The composite filter element assembly of any of claims 1-2, 6-9, wherein:

when the fine filtering device comprises a concentrated water outlet (702), the concentrated water outlet (702) is arranged at the bottom end of the bottle body (604), and the lower end of the fine filtering filter element (203) can be communicated with the concentrated water outlet (702).

11. The composite filter element assembly of any of claims 1-2, 6-9, wherein:

the top end of the bottle body (604) is provided with a first connecting end cover (401) to seal the upper end of the bottle body (604); and/or a second connecting end cover (402) is arranged at the upper end of the first-stage pretreatment filter element (201) and the upper end of the second-stage pretreatment filter element (202), and the second connecting end cover (402) is fixedly arranged on the bottle body (604); and/or a third connecting end cover (403) is arranged at the bottom end of the first-stage pretreatment filter element (201) and the second-stage pretreatment filter element (202), and a water passing channel formed by ribs is arranged on the outer wall of the third connecting end cover (403);

when further comprising a center tube (602):

and/or a fourth connecting end cover (404) is arranged above the central pipe (602), and a gap is formed between the upper end of the central pipe (602) and the fourth connecting end cover (404); and/or a sixth connecting end cover (406) is further arranged below the post-treatment filter element (204), and a water passing channel formed by ribs is arranged on the outer wall of the sixth connecting end cover (406).

12. The composite filter element assembly of claim 11, wherein:

a first sealing element (301) is arranged between the top end of the post-treatment filter element (204) and the inner wall of the central pipe (602); and/or the position where the upper part of the fine filter element (203) is connected with the third connecting end cover (403) is wound on the outer walls of the third connecting end cover (403) and the fine filter element (203) together through a first adhesive tape (302); and/or the position where the lower part of the fine filter element (203) is connected with the sixth connecting end cover (406) is wound on the outer walls of the sixth connecting end cover (406) and the fine filter element (203) together through a second adhesive tape (303); and/or a fourth seal member (304) is arranged between the lower outer peripheral wall of the aftertreatment filter element (204) and the inner peripheral wall of the central tube (602); and/or a fifth sealing element (305) is further arranged between the periphery of the bottom end of the central pipe (602) and the sixth connecting end cover (406); and/or a sixth sealing member (306) is arranged on the peripheral wall of the lower end of the sixth connecting end cover (406).

13. The composite filter element assembly of claim 12, wherein:

a first cavity (501) is formed between the bottom of the sixth connecting end cover (406) and the bottle body (604); and/or a second cavity (502) is arranged between the periphery of the fine filtering filter element (203) and the bottle body (604); and/or a third cavity (503) is formed between the periphery of the first-stage pretreatment filter element (201) and the bottle body (604); and/or the interior of the second-stage pretreatment filter element (202) is provided with a fourth cavity (504) extending in the vertical direction; and/or a fifth cavity (505) is arranged between the lower end of the third connecting end cover (403) and the fine filtering filter element (203); and/or an eighth cavity (508) is formed between the bottom end of the aftertreatment cartridge (205) and the center tube (602); and/or a ninth cavity (509) is formed between the bottom of the central pipe (602) and the sixth connecting end cover (406), and the ninth cavity (509) is communicated with the concentrated water outlet (702); and/or a tenth cavity (510) is formed between the bottom of the sixth connecting end cover (406) and the concentrated water outlet (702).

14. A water purification system, its characterized in that: comprising the composite filter element assembly of any one of claims 1-13.