CN106422463A - Pre-filter assembly capable of being back washed - Google Patents
Pre-filter assembly capable of being back washed Download PDFInfo
- Publication number
- CN106422463A CN106422463A CN201610948125.6A CN201610948125A CN106422463A CN 106422463 A CN106422463 A CN 106422463A CN 201610948125 A CN201610948125 A CN 201610948125A CN 106422463 A CN106422463 A CN 106422463A
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- China
- Prior art keywords
- filter
- filter screen
- reverse flushing
- backwash
- skeleton
- Prior art date
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Links
- 238000011045 prefiltration Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 238000011001 backwashing Methods 0.000 claims abstract description 15
- 238000011010 flushing procedure Methods 0.000 claims description 98
- 238000001914 filtration Methods 0.000 claims description 21
- 230000008676 import Effects 0.000 claims description 18
- 238000000429 assembly Methods 0.000 claims description 12
- 230000000712 assembly Effects 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- 210000000988 bone and bone Anatomy 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 2
- 238000002955 isolation Methods 0.000 claims 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 description 6
- 239000003651 drinking water Substances 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009288 screen filtration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to a pre-filter assembly capable of being back washed. The pre-filter assembly comprises a head with an inlet and an outlet and a filter flask, wherein a drainage structure capable of being opened and closed is arranged at the lower end of the filter flask; the pre-filter assembly further comprises a filter assembly coaxially arranged in the filter flask, the filter assembly comprises a filter element and a back washing element coaxial with the filter element, the filter element comprises a filter net body, a filter net framework as well as a water inlet end cover and a drainage end cover located at two ends of the filter net framework, the external dimensions of the water inlet end cover and the drainage end cover are adapted to the upper end and the lower end of the filter flask respectively, and the water inlet end cover communicates with the inlet of the head; the back washing element comprises a back washing filter net body, a back washing filter net framework, a sealing cover, a reset spring and a back washing filter net lower sealing body with a drainage channel. The pre-filter assembly is reasonable in design and convenient to use; when cleaning is required, back washing is realized by switching flowing channels, and water flow passing by a filter net in opposite directions is produced for cleaning the filter net again.
Description
Technical field
The present invention relates to a kind of can backwash prefilter device assembly, belong to water correction plant technical field.
Background technology
Fore filter of the prior art includes：The filter flask that head, upper end are connected with head is connected with filter flask lower end
Draining sealing member and the drainage ball valve being connected with draining sealing member, are provided with filtration network framework in filter flask, filter the outer of network framework
Wall is arranged with drainage screen.During use, water flows into the space between filter flask and drainage screen from the water inlet of head, passes through
The center for filtering network framework is flowed into after filter screen filtration, is then flow to the outlet of head by drainage screen frame center.
Using this fore filter, can filter from drinking water supply in drinking water before leading place is for use
Drinking water.The impurity gradually clog filter screens that accumulates in drainage screen.Thus, cause undesirable pressure drop.Affect preposition mistake
The service life of filter, disassembled by hand is cleared up, and cleaning efficiency is low, and fragile each component, accordingly, it would be desirable to design one kind can backwash
Prefilter device assembly, by switching runner, back flush, produce in the opposite direction by the current of drainage screen, again
Clean filtering net, the water for receiving impurity in back flush procedure is excluded by drainage ball valve.
Content of the invention
It is an object of the invention to solve the deficiencies in the prior art, provide a kind of can backwash prefilter device assembly,
When cleaning is needed, by switching runner, back flush, produce in the opposite direction by the current of drainage screen, cleaned again
Filter screen.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of can backwash prefilter device assembly, the prefilter device assembly includes：
Head with inlet and outlet；
Filter flask, filter flask upper end is detachably connected with head, and filter flask lower end is provided with the pollution discharge structure that can open and close,
Also include the filter assemblies of concentric setting in filter flask；
The filter assemblies include the backwash element of filter element and concentric setting；
The filter element is by drainage screen body, filtration network framework and positioned at the intake end cover for filtering network framework two ends and draining
End cap constitutes, the external dimensions of intake end cover and draining end cap upper and lower end adapter respectively with filter flask, intake end cover and head
Inlet communication, between drainage screen body and filter flask formed cavity, filter working condition when, water from import pass through intake end cover warp
Entered from drainage screen body exterior by cavity internal；
The backwash element includes that reverse flushing filter screen body, reverse flushing filter screen skeleton, seal closure, back-moving spring and band draining are led to
The reverse flushing filter screen lower sealed body in road, reverse flushing filter screen body is socketed on reverse flushing filter screen skeleton upper end department of assembly and outside socket is close
Sealing cover, reverse flushing filter screen skeleton bottom is provided with positive stop lug boss, and back-moving spring upper end is abutted with positive stop lug boss, lower end and draining end cap
Abut, reverse flushing filter screen lower sealed body is detachably connected through draining end cap with reverse flushing filter screen skeleton, reverse flushing filter screen skeleton energy
Synchronous with reverse flushing filter screen body axially movable with respect to filter element, seal closure is isolated with the import of head, seal closure top
With the outlet of head, during backwash filter state, under department of assembly, work surface can close intake end cover, realize runner switching.
Present configuration is reasonable in design, simple and convenient assembly, can realize back flush by switching runner.Filter working condition
When, water enters inside via cavity from drainage screen body exterior through intake end cover from the import of head, and impurity is by drainage screen sheet
Body is retained, and the water after purification inside entrance flow to head outlet via reverse flushing filter screen skeleton from seal closure top；Backwash
During working condition, pollution discharge structure is opened, water is flowed out from the drainage channel of reverse flushing filter screen lower sealed body, reverse flushing filter screen lower sealed body two
Side produces pressure differential due to the change of flow velocity, and the pressure drives reverse flushing filter screen lower sealed body toward bottom offset, overcomes back-moving spring
Tension force, and then pull whole reverse flushing filter screen skeleton to move downward, the lower work face closure in reverse flushing filter screen Skeleton assembly portion enters
Water end (W.E.) lid, reverse flushing filter screen is spilt from seal closure, and runner is switched, and the water of import is entered from interior after reverse flushing filter screen filtration
Portion flows out, and carries out backwash to filter screen, and the impure water of backwash is via the drainage channel stream of reverse flushing filter screen lower sealed body
Go out.
The present invention also has another implementation, to strengthen backwash effect, i.e., sets up one outside filter element
Element is scraped, is realized machinery and scrape, specific implementation is as follows：
A kind of can backwash prefilter device assembly, the prefilter device assembly includes：
Head with inlet and outlet；
Filter flask, filter flask upper end is detachably connected with head, and filter flask lower end is provided with the pollution discharge structure that can open and close,
Also include the filter assemblies of concentric setting in filter flask；
The filter assemblies include filter element, the backwash element of concentric setting and scrape unit outside filter element
Part, scraping element includes to scrape skeleton, is located at the actuator and at least for scraping that skeleton bottom scrapes skeleton rotation for driving
Bar along scrape skeleton outside axially arranged scrape bar, the external dimensions of actuator is adapted to filter flask lower end, actuator and blowdown
Mechanism connects；
Filter element is by drainage screen body, filtration network framework and positioned at the intake end cover for filtering network framework two ends and draining end cap
Composition, intake end cover external dimensions is adapted to the upper end of filter flask, and the external dimensions of draining end cap is adapted to actuator, water inlet end
Lid and the inlet communication of head, form cavity between drainage screen body and filter flask, when filtering working condition, water from import pass through into
Water end (W.E.) lid enters internal via cavity from drainage screen body exterior；
Backwash element includes reverse flushing filter screen body, reverse flushing filter screen skeleton, seal closure, back-moving spring and with drainage channel
Reverse flushing filter screen lower sealed body, reverse flushing filter screen body is socketed on reverse flushing filter screen skeleton upper end department of assembly outside socket sealing
Cover, reverse flushing filter screen skeleton bottom is provided with positive stop lug boss, and back-moving spring upper end is abutted with positive stop lug boss, and lower end is supported with draining end cap
Connect, reverse flushing filter screen lower sealed body is detachably connected through draining end cap with reverse flushing filter screen skeleton, reverse flushing filter screen skeleton can be with
Reverse flushing filter screen body is synchronous with respect to filter element axially activity, and seal closure isolate with the import of head, seal closure top and
The outlet of head, during backwash filter state, under department of assembly, work surface can close intake end cover, realize runner switching.
Preferably, the backwash element also includes that the reverse flushing filter screen located at reverse flushing filter screen skeleton top is covered, and uses
In fixing reverse flushing filter screen body, reverse flushing filter screen capping is provided with seal groove, is provided with sealing ring in seal groove.
Preferably, the intake end cover is circumferentially provided with least one seal groove, is provided with sealing ring, water inlet end in seal groove
Lid is uniformly provided with some distribution holes, and for water inlet is uniformly distributed in cavity, the discharge ends cover rim circumference is provided with least one
Bar seal groove, is provided with sealing ring in seal groove.
Preferably, department of assembly at least one end that the reverse flushing filter screen skeleton is assembled for reverse flushing filter screen body is provided with close
Sealing groove, is provided with sealing ring in seal groove.
Preferably, the drainage screen skeletal internal is additionally provided with backwashing water distribution mechanism, for uniformly dividing backwashing water
It is distributed in drainage screen body internal surface.
Preferably, the seal closure upper end is provided with sealing ring at least provided with a seal groove in seal groove, for reinforcing with
The sealing effectiveness of head exit perimeter.
Preferably, the pollution discharge structure includes blowdown sealing member and blowdown valve body, and blowdown sealing member is rotated with filter flask sealing
Connection, actuator and the grafting of blowdown sealing member or clamping.When needing machinery to scrape, blowdown sealing member is can be manually rotated, and then is driven
Actuator is rotated, and is driven and is scraped skeleton rotation, realizes scraping.
Preferably, the filtration network framework of the filter element, intake end cover and draining end cap integrated injection molding, backwash
The reverse flushing filter screen skeleton of element, positive stop lug boss and reverse flushing filter screen capping integrated injection molding.Integrated injection molding processing side
Just, reliable in quality.
Preferably, described scrape element integrated injection molding, be provided with least one seal groove outside actuator, in seal groove
It is provided with sealing ring.
The invention has the beneficial effects as follows：Present configuration is reasonable in design, simple and convenient assembly, can be realized anti-by switching runner
To flushing.When filtering working condition, water is entered from drainage screen body exterior via cavity from the import of head through intake end cover
Inside, impurity is retained by drainage screen body, enter inside purification after water via reverse flushing filter screen skeleton, from seal closure top
It flow to head outlet；During backwash working condition, pollution discharge structure is opened, water is from the drainage channel stream of reverse flushing filter screen lower sealed body
Go out, reverse flushing filter screen lower sealed body both sides produce pressure differential due to the change of flow velocity, the pressure drives reverse flushing filter screen lower sealed body past
Bottom offset, overcomes the tension force of back-moving spring, and then pulls whole reverse flushing filter screen skeleton to move downward, reverse flushing filter screen skeleton
The lower work face closure intake end cover of department of assembly, reverse flushing filter screen is spilt from seal closure, and runner is switched, and the water of import is through anti-
Flushing filtering net is entered after filtering and is flowed out from internal, carries out backwash to filter screen, and the impure water of backwash is via backwash
The drainage channel of filter screen lower sealed body flows out.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for technology description is had to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the sectional view of the present invention；
Fig. 2 is the exploded view of filter assemblies；
Fig. 3 is the structural representation for scraping element.
In figure：1st, head, 2, filter flask, 3, pollution discharge structure, 31, blowdown sealing member, 32, blowdown valve body, 4, filter element,
41st, drainage screen body, 42, filter network framework, 43, intake end cover, 44, draining end cap, 5, backwash element, 51, recoil filter wash
Net body, 52, reverse flushing filter screen skeleton, 52a, department of assembly, 53, seal closure, 54, back-moving spring, 55, seal under reverse flushing filter screen
Body, 56, positive stop lug boss, 57, reverse flushing filter screen capping, 6, scrape element, 61, scrape skeleton, 62, actuator, 63, scrape bar,
7th, backwashing water distribution mechanism.
Specific embodiment
Below by specific embodiment, and accompanying drawing is combined, technical scheme is described in further detail.
Embodiment 1：
As illustrated in fig. 1 and 2 a kind of can backwash prefilter device assembly, the prefilter device assembly includes：Band import
Head 1 with outlet；
Filter flask 2,2 upper end of filter flask is spirally connected with head, and 2 lower end of filter flask is provided with the pollution discharge structure 3 that can open and close, the blowdown knot
Structure 3 includes blowdown sealing member 31 and blowdown valve body 32, and blowdown sealing member 31 is rotated with the sealing of filter flask 2 and is connected；
Also include the filter assemblies of concentric setting in filter flask 2；
The filter assemblies include the backwash element 5 of filter element 4 and concentric setting；
The filter element 4 is by drainage screen body 41, filtration network framework 42 and positioned at the water inlet end for filtering 42 two ends of network framework
Lid 43 and draining end cap 44 constitute, and the external dimensions of intake end cover 43 and draining end cap 44 is fitted with the upper and lower end of filter flask 2 respectively
Join, the inlet communication of intake end cover 43 and head 1, between drainage screen body 41 and filter flask 2, cavity is formed, filter working condition
When, water enters inside via cavity from drainage screen body 41 is outside through intake end cover 43 from import；
The backwash element 5 includes reverse flushing filter screen body 51, reverse flushing filter screen skeleton 52, seal closure 53, back-moving spring 54
With the reverse flushing filter screen lower sealed body 55 with drainage channel, reverse flushing filter screen body 51 be socketed on 52 upper end of reverse flushing filter screen skeleton dress
Join portion 52a and outside socket seal closure 53,52 bottom of reverse flushing filter screen skeleton is provided with positive stop lug boss 56,54 upper end of back-moving spring with
Positive stop lug boss 56 is abutted, and lower end is abutted with draining end cap 44, and reverse flushing filter screen lower sealed body 55 is through draining end cap 44 and backwash
Filter screen skeleton 52 is detachably connected by the cooperation of fastening screw and nut, and reverse flushing filter screen skeleton 52 can be with reverse flushing filter screen sheet
Body 51 is synchronous with respect to the axially activity of filter element 4, and seal closure 53 is isolated with the import of head 1,53 top of seal closure and head 1
Outlet, during backwash filter state, under department of assembly 52a, work surface can close intake end cover 43, realize runner switching.
Present configuration is reasonable in design, simple and convenient assembly, can realize back flush by switching runner.Filter working condition
When, water enters inside via cavity from drainage screen body 41 is outside through intake end cover 43 from the import of head 1, and impurity is filtered
Net body 41 is retained, and the water after purification inside entrance flow to head 1 via reverse flushing filter screen skeleton 52 from 53 top of seal closure
Outlet；During backwash working condition, pollution discharge structure 3 is opened, water is flowed out from the drainage channel of reverse flushing filter screen lower sealed body 55, recoil
55 both sides of filter wash net lower sealed body produce pressure differential due to the change of flow velocity, and the pressure differential carry backwash filter screen lower sealed body 55 is down
Displacement, overcomes the tension force of back-moving spring 54, and then pulls whole reverse flushing filter screen skeleton 52 to move downward, reverse flushing filter screen bone
The lower work face closure intake end cover 43 of 52 department of assembly 52a of frame, reverse flushing filter screen 51 is spilt from seal closure 53, and runner is cut
Change, the water of import is flowed out from internal after the filtration of reverse flushing filter screen 51, carry out backwash to drainage screen body 41, the containing of backwash
Water impurity is flowed out via the drainage channel of reverse flushing filter screen lower sealed body 55.
Above-mentioned can the prefilter device assembly of backwash be only one kind in concrete scheme, but be not limited only to this, here
On the basis of can make and targetedly adjusting, obtain preferred version, specific as follows：
Used as a kind of preferred version, the backwash element 5 also includes the recoil filter wash located at 52 top of reverse flushing filter screen skeleton
Net capping 57, for fixing reverse flushing filter screen body 51, reverse flushing filter screen capping 57 is provided with seal groove, is provided with sealing in seal groove
Circle, to improve the sealing effectiveness with seal closure 53.
In order to optimize such scheme further, the intake end cover 43 is circumferentially provided with least one seal groove, seal groove
Sealing ring is inside provided with, and intake end cover 43 is uniformly provided with some distribution holes, for water inlet is uniformly distributed in cavity, the draining
End cap 44 is circumferentially provided with least one seal groove, is provided with sealing ring in seal groove.
In order to optimize such scheme further, the reverse flushing filter screen skeleton 52 is used for the assembling of reverse flushing filter screen body 51
Under department of assembly 52a, work surface is provided with seal groove, is provided with sealing ring in seal groove.
In order to optimize such scheme further, backwashing water distribution mechanism 7 inside the filtration network framework 42, is additionally provided with, uses
In backwashing water is uniformly distributed in 41 inner surface of drainage screen body.The backwashing water distribution mechanism 7 includes that a water inlet is logical
Road, the intake tunnel is circumferentially provided with some exhalant canals, the water outlet direction of the exhalant canal and the circumference of intake tunnel
Tangent, intake tunnel upper end is provided with installation opening, and for assembling with backwash element 5, intake tunnel lower end is provided with hollow assembling
Boss, mounting boss is provided with the locating slot of the assembling jump ring for positioning.Backwash element 5 is logical by installation opening insertion water inlet
In road, 52 self-assembly portion 52a lower end of whole reverse flushing filter screen skeleton is entirely located in intake tunnel, and during backwash, recoil filter wash
The water that network framework 52 flows out enters intake tunnel, by exhalant canal spiral dispersing, washes away drainage screen body 41, and moisture dissipates effect
Really good, backwash efficiency high, intake tunnel lower end by mounting boss and filter 42 lower end clamping of network framework, and by jump ring with
Cooperation positioning, i.e. the backwashing water distribution mechanism 7 of locating slot is motionless with respect to network framework 42 is filtered.
In order to optimize such scheme further, 53 upper end of the seal closure is set in seal groove at least provided with a seal groove
There is sealing ring, for reinforcing and the sealing effectiveness of 1 exit perimeter of head.
In order to optimize such scheme further, in order to realize processing simply, reliable in quality, the filtration of the filter element 4
Network framework 42, intake end cover 43 and 44 integrated injection molding of draining end cap, the reverse flushing filter screen skeleton 52 of backwash element 5, limit
Position boss 56 and reverse flushing filter screen cover 57 integrated injection moldings.
Embodiment 2：
In order to improve the effect of backwash further, the present embodiment 2 has done further optimization on the basis of embodiment 1, this
Embodiment 2 can backwash prefilter device assembly basic structure with embodiment 1, difference is：The filter assemblies
Element 6 is scraped including filter element 4, the backwash element 5 of concentric setting and outside filter element 4, as Fig. 3 institute
Show, scraping element 6 includes to scrape skeleton 61, is located at the actuator 62 for scraping that 61 bottom of skeleton scrapes the rotation of skeleton 61 for driving
With at least one along scrape skeleton 61 outside axially arranged scrape bar 63, the external dimensions of actuator 62 is suitable with 2 lower end of filter flask
Join, actuator 62 is connected with pollution discharge mechanism 3；Filter element 4 by drainage screen body 41, filtration network framework 42 and is located at drainage screen
The intake end cover 43 at 42 two ends of skeleton and draining end cap 44 constitute, and 43 external dimensions of intake end cover is adapted to the upper end of filter flask 2,
The external dimensions of draining end cap 44 is adapted to actuator 62, the inlet communication of intake end cover 43 and head 1, drainage screen body 41 with
Cavity is formed between filter flask 2, when working condition is filtered, water is from import through intake end cover 43 via cavity from drainage screen body 41
Outside entrance is internal.
In technical scheme, the pollution discharge structure 3 includes blowdown sealing member 31 and blowdown valve body 32, and blowdown is sealed
The sealing of part 31 and filter flask 2 is rotated and be connected, actuator 62 and 31 clamping of blowdown sealing member；When needing machinery to scrape, the row of can be manually rotated
Dirty sealing member 31, and then drive actuator 62 to rotate, driving scrapes skeleton 61 and rotates, and realizes scraping.
In order to optimize such scheme further, in order to realize processing simply, reliable in quality, 6 one of element that scrapes is noted
Molded, at least one seal groove is provided with outside actuator 32, is provided with sealing ring in seal groove.
Embodiment described above is one kind preferably scheme of the present invention, not the present invention is made any pro forma
Limit, also have other variants and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (10)
1. can backwash prefilter device assembly, the prefilter device assembly includes：
Head with inlet and outlet（1）；
Filter flask（2）, filter flask（2）Upper end and head（1）It is detachably connected, filter flask（2）Lower end is provided with the blowdown that can open and close
Structure（3）, it is characterised in that：
Also include filter flask（2）In concentric setting filter assemblies；
The filter assemblies include filter element（4）Backwash element with concentric setting（5）；
The filter element（4）By drainage screen body（41）, filter network framework（42）And it is located at filtration network framework（42）Two ends
Intake end cover（43）With draining end cap（44）Composition, intake end cover（43）With draining end cap（44）External dimensions respectively with filter
Bottle（2）Upper and lower end adapter, intake end cover（41）With head（1）Inlet communication, drainage screen body（42）With filter flask（2）
Between formed cavity, filter working condition when, water from import pass through intake end cover（43）Via cavity from drainage screen body（41）
Outside entrance is internal；
The backwash element（5）Including reverse flushing filter screen body（51）, reverse flushing filter screen skeleton（52）, seal closure（53）, multiple
Position spring（54）With the reverse flushing filter screen lower sealed body with drainage channel（55）, reverse flushing filter screen body（51）It is socketed on recoil filter wash
Network framework（52）Department of assembly（52a）And outside socket seal closure（53）, reverse flushing filter screen skeleton（52）Bottom is provided with positive stop lug boss
（56）, back-moving spring（54）Upper end and positive stop lug boss（56）Abutting, lower end and draining end cap（44）Abut, seal under reverse flushing filter screen
Body（55）Through draining end cap（44）With reverse flushing filter screen skeleton（52）It is detachably connected, reverse flushing filter screen skeleton（52）Can with anti-
Flushing filtering net body（51）Synchronously with respect to filter element（4）Axially activity, seal closure（53）With head（1）Import isolation,
Seal closure（53）Top and head（1）Outlet, during backwash filter state, department of assembly（52a）Lower work surface can be closed
Intake end cover（43）, realize runner switching.
2. can backwash prefilter device assembly, the prefilter device assembly includes：
Head with inlet and outlet（1）；
Filter flask（2）, filter flask（2）Upper end and head（1）It is detachably connected, filter flask（2）Lower end is provided with the blowdown that can open and close
Structure（3）, it is characterised in that：
Also include filter flask（2）In concentric setting filter assemblies；
The filter assemblies include filter element（4）, concentric setting backwash element（5）Be located at filter element（4）Outward
Portion scrapes element（6）, scrape element（6）Including scraping skeleton（61）, located at scraping skeleton（61）Bottom is scraped for driving
Skeleton（61）The actuator of rotation（62）Skeleton is scraped with least one edge（61）What outside was axially arranged scrapes bar（63）, drive
Part（62）External dimensions and filter flask（2）Lower end is adapted to, actuator（62）With pollution discharge mechanism（3）Connection；
Filter element（4）By drainage screen body（41）, filter network framework（42）And it is located at filtration network framework（42）The entering of two ends
Water end (W.E.) lid（43）With draining end cap（44）Composition, intake end cover（43）External dimensions and filter flask（2）Upper end adaptation, discharge ends
Lid（44）External dimensions and actuator（62）Adaptation, intake end cover（43）With head（1）Inlet communication, drainage screen body
（41）With filter flask（2）Between formed cavity, filter working condition when, water from import pass through intake end cover（43）Via cavity from mistake
Filter screen body（41）Outside entrance is internal；
Backwash element（5）Including reverse flushing filter screen body（51）, reverse flushing filter screen skeleton（52）, seal closure（53）, reset bullet
Spring（54）With the reverse flushing filter screen lower sealed body with drainage channel（55）, reverse flushing filter screen body（51）It is socketed on reverse flushing filter screen bone
Frame（52）Upper end department of assembly outside socket seal closure（53）, reverse flushing filter screen skeleton（52）Bottom is provided with positive stop lug boss（56）,
Back-moving spring（54）Upper end and positive stop lug boss（56）Abutting, lower end and draining end cap（44）Abut, reverse flushing filter screen lower sealed body
（55）Through draining end cap（44）With reverse flushing filter screen skeleton（52）It is detachably connected, reverse flushing filter screen skeleton（52）Can be with recoil
Filter wash net body（51）Synchronously with respect to filter element（4）Axially activity, seal closure（53）With head（1）Import isolation, close
Sealing cover（53）Top and head（1）Outlet, during backwash filter state, department of assembly（52a）Lower work surface can close into
Water end (W.E.) lid（43）, realize runner switching.
3. according to claim 1 and 2 can backwash prefilter device assembly, it is characterised in that：The backwash unit
Part（5）Also include located at reverse flushing filter screen skeleton（52）The reverse flushing filter screen capping on top（57）, for fixing reverse flushing filter screen
Body（41）, reverse flushing filter screen capping（57）Seal groove is provided with, in seal groove, is provided with sealing ring.
4. according to claim 1 and 2 can backwash prefilter device assembly, it is characterised in that：The intake end cover
（43）At least one seal groove is circumferentially provided with, in seal groove, is provided with sealing ring, intake end cover（43）It is uniformly provided with some distributions
Hole, for water inlet is uniformly distributed in cavity, the draining end cap（44）At least one seal groove, seal groove are circumferentially provided with
Sealing ring is inside provided with.
5. according to claim 1 and 2 can backwash prefilter device assembly, it is characterised in that：The recoil filter wash
Network framework（52）For reverse flushing filter screen body（51）Under the department of assembly (52a) of assembling, work surface is provided with seal groove, in seal groove
It is provided with sealing ring.
6. according to claim 1 and 2 can backwash prefilter device assembly, it is characterised in that：The drainage screen bone
Frame（42）Inside is additionally provided with backwashing water distribution mechanism（7）, for backwashing water is uniformly distributed in drainage screen body（41）Interior
Surface.
7. according to claim 1 and 2 can backwash prefilter device assembly, it is characterised in that：The seal closure
（53）Upper end is provided with sealing ring at least provided with a seal groove in seal groove, for reinforcing and head（1）The sealing of exit perimeter
Effect.
8. according to claim 2 can backwash prefilter device assembly, it is characterised in that：The pollution discharge structure（3）
Including blowdown sealing member（31）With blowdown valve body（32）, blowdown sealing member（31）With filter flask（2）Sealing rotates connection, actuator
（62）With blowdown sealing member（31）Grafting or clamping.
9. according to described in claim 3 can backwash prefilter device assembly, it is characterised in that：The filter element（4）'s
Filter network framework（42）, intake end cover（43）With draining end cap（44）Integrated injection molding, backwash element（5）Recoil filter wash
Network framework（52）, positive stop lug boss（56）Cover with reverse flushing filter screen（57）Integrated injection molding.
10. according to described in claim 2 can backwash prefilter device assembly, it is characterised in that：Described scrape element（6）One
Body injection mo(u)lding, actuator（62）Outside is provided with least one seal groove, is provided with sealing ring in seal groove.
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| CN201610948125.6A CN106422463B (en) | 2016-10-26 | 2016-10-26 | The prefilter device assembly that can be backwashed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610948125.6A CN106422463B (en) | 2016-10-26 | 2016-10-26 | The prefilter device assembly that can be backwashed |
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| Publication Number | Publication Date |
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| CN106422463A true CN106422463A (en) | 2017-02-22 |
| CN106422463B CN106422463B (en) | 2018-08-28 |
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| CN201610948125.6A Active CN106422463B (en) | 2016-10-26 | 2016-10-26 | The prefilter device assembly that can be backwashed |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106731107A (en) * | 2017-03-15 | 2017-05-31 | 南京谷牛智能科技有限公司 | A kind of pressure difference automatic flushing filtering system |
| CN107754420A (en) * | 2017-09-26 | 2018-03-06 | 海宁市水享净水设备有限公司 | A kind of new fore filter |
| CN107857404A (en) * | 2017-12-10 | 2018-03-30 | 李渊 | A kind of water treatment facilities |
| CN108159758A (en) * | 2018-01-18 | 2018-06-15 | 海宁市倍世环保科技有限公司 | The positive inner pressed fore filter rinsed with backwashing function of band |
| CN108187396A (en) * | 2018-01-18 | 2018-06-22 | 海宁市倍世环保科技有限公司 | For the draining runner transformational structure of fore filter |
| CN108905338A (en) * | 2018-09-10 | 2018-11-30 | 诸暨市来诺环境科技有限公司 | Universal directional multifunctional fore filter |
| CN109603249A (en) * | 2019-01-03 | 2019-04-12 | 浙江朗诗德健康饮水设备股份有限公司 | A kind of water purifier fore filter |
| CN110393965A (en) * | 2019-07-03 | 2019-11-01 | 曹开军 | Fore filter with strainer self-cleaning function |
| CN110538501A (en) * | 2019-09-26 | 2019-12-06 | 海宁市水享净水设备有限公司 | back-flushing prefilter and water purifier with same |
| CN112691426A (en) * | 2021-01-08 | 2021-04-23 | 本源万物(南京)环境设备有限公司 | Internal and external member filter equipment |
| CN113218904A (en) * | 2021-07-08 | 2021-08-06 | 北京矿冶研究总院 | Sampling assembly, pH detection device and pH detection method |
| CN113262540A (en) * | 2021-06-17 | 2021-08-17 | 陕西金禹科技发展有限公司 | Automatic backwashing surface filtering device for dilute phosphoric acid mixed liquid and using method thereof |
| CN113264606A (en) * | 2021-05-10 | 2021-08-17 | 陕西金禹科技发展有限公司 | Softening treatment method and equipment for cooling circulating water |
| CN113617097A (en) * | 2021-09-09 | 2021-11-09 | 广东省水利电力勘测设计研究院有限公司 | Filter equipment for irrigation |
| CN113975873A (en) * | 2021-11-30 | 2022-01-28 | 江苏纯悦环境科技有限公司 | Back flush filter |
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| CN106731107A (en) * | 2017-03-15 | 2017-05-31 | 南京谷牛智能科技有限公司 | A kind of pressure difference automatic flushing filtering system |
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| CN108905338A (en) * | 2018-09-10 | 2018-11-30 | 诸暨市来诺环境科技有限公司 | Universal directional multifunctional fore filter |
| CN109603249A (en) * | 2019-01-03 | 2019-04-12 | 浙江朗诗德健康饮水设备股份有限公司 | A kind of water purifier fore filter |
| CN110393965A (en) * | 2019-07-03 | 2019-11-01 | 曹开军 | Fore filter with strainer self-cleaning function |
| CN110538501A (en) * | 2019-09-26 | 2019-12-06 | 海宁市水享净水设备有限公司 | back-flushing prefilter and water purifier with same |
| CN112691426A (en) * | 2021-01-08 | 2021-04-23 | 本源万物(南京)环境设备有限公司 | Internal and external member filter equipment |
| CN113264606A (en) * | 2021-05-10 | 2021-08-17 | 陕西金禹科技发展有限公司 | Softening treatment method and equipment for cooling circulating water |
| CN113262540A (en) * | 2021-06-17 | 2021-08-17 | 陕西金禹科技发展有限公司 | Automatic backwashing surface filtering device for dilute phosphoric acid mixed liquid and using method thereof |
| CN113218904A (en) * | 2021-07-08 | 2021-08-06 | 北京矿冶研究总院 | Sampling assembly, pH detection device and pH detection method |
| CN113617097A (en) * | 2021-09-09 | 2021-11-09 | 广东省水利电力勘测设计研究院有限公司 | Filter equipment for irrigation |
| CN113975873A (en) * | 2021-11-30 | 2022-01-28 | 江苏纯悦环境科技有限公司 | Back flush filter |
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