CN206168024U - But leading filter spare of back flush - Google Patents
But leading filter spare of back flush Download PDFInfo
- Publication number
- CN206168024U CN206168024U CN201621171276.7U CN201621171276U CN206168024U CN 206168024 U CN206168024 U CN 206168024U CN 201621171276 U CN201621171276 U CN 201621171276U CN 206168024 U CN206168024 U CN 206168024U
- Authority
- CN
- China
- Prior art keywords
- filter screen
- filter
- reverse flushing
- skeleton
- end cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The utility model relates to a but leading filter spare of back flush, include: bring into mouthful with aircraft nose, the filter flask of export, the filter flask lower extreme is equipped with the blowdown structure that can open and close, still includes the filtering component who sets up in the filter flask with the axle center, filtering component included filtration cell spare and the back flush component that sets up with the axle center, cross filtration cell spare and constitute by filter screen body, filter screen skeleton and the intake end cover and the drainage end cover that are located filter screen framework two ends, the external dimensions of intake end cover and drainage end cover respectively with the upper and lower tip adaptation of filter flask, the import intercommunication of intake end cover and aircraft nose, the back flush component includes back washing filter screen body, back washing filter screen skeleton, sealed cowling, reset spring and takes lower body of back washing filter screen of drainage channel. The utility model relates to a rationally, convenient to use, when needing to wash, through switching the runner, the counterflush produces through the rivers of filter screen on opposite direction, cleans the filter screen again.
Description
Technical field
The utility model is related to a kind of prefilter device assembly for backwashing, and belongs to water correction plant technical field.
Background technology
Fore filter of the prior art includes：What the filter flask of head, upper end and head connection and filter flask lower end connected
Draining seal and the drainage ball valve being connected with draining seal, are provided with filtering network framework, outside filtering network framework in filter flask
Wall is arranged with screen pack.During use, water flows into the space between filter flask and screen pack from the water inlet of head, passes through
The center of filtering network framework is flowed into after filter screen filtration, the delivery port of head is then flow to by screen pack frame center.
Using this fore filter, can filter and derive from drinking water supply before drinking water is at tap for use
Drinking water.The impurity gradually clog filter screens accumulated in screen pack.Thus, undesirable pressure drop is caused.Influence preposition mistake
The service life of filter, disassembled by hand cleaning, cleaning efficiency is low, fragile each component, accordingly, it would be desirable to design one kind can backwash
Prefilter device assembly, by switching runner, back flush is produced in the opposite direction by the current of screen pack, again
Cleaning screen pack, the water that impurity is received in back flush procedure is excluded by drainage ball valve.
Utility model content
The purpose of this utility model is to solve the deficiencies in the prior art, there is provided a kind of fore filter group for backwashing
Part is, it is necessary to when cleaning, by switching runner, back flush is produced in the opposite direction by the current of screen pack, cleaned again
Screen pack.
The utility model solves the technical scheme that its technical problem used：
A kind of prefilter device assembly for backwashing, 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 be opened and closed,
Also include the filter assemblies of concentric setting in filter flask；
The filter assemblies include the backwash element of filter element and concentric setting；
Intake end cover of the filter element by screen pack body, filtering network framework and positioned at filtering network framework two ends and
Draining end cap is constituted, the external dimensions of intake end cover and draining end cap respectively with the upper and lower end adapter of filter flask, intake end cover with
The inlet communication of head, forms cavity between screen pack body and filter flask, during filtration state, water passes through water inlet end from import
Lid enters internal via cavity from screen pack body exterior；
The backwash element includes reverse flushing filter screen body, reverse flushing filter screen skeleton, seal closure, back-moving spring and band row
The reverse flushing filter screen lower sealed body of aquaporin, reverse flushing filter screen body is socketed on reverse flushing filter screen skeleton upper end department of assembly and outer cover
Seal closure is connect, reverse flushing filter screen skeleton bottom is provided with positive stop lug boss, and back-moving spring upper end abuts with positive stop lug boss, lower end and draining
End cap is abutted, and reverse flushing filter screen lower sealed body is detachably connected through draining end cap with reverse flushing filter screen skeleton, reverse flushing filter screen bone
Frame can be synchronous with reverse flushing filter screen body relative to filter element axially activity, and seal closure is isolated with the import of head, seal closure
Top and the outlet of head, during backwash filter state, working face can close intake end cover under department of assembly, realize that runner is cut
Change.
The utility model reasonable in design, simple and convenient assembly can realize back flush by switching runner.Filtration
During state, water enters internal via cavity through intake end cover from the import of head from screen pack body exterior, and impurity is filtered
Net body is retained, and into the water after internal purification via reverse flushing filter screen skeleton, head outlet is flow to from seal closure top；Instead
During flushing work state, pollution discharge structure is opened, water flows out from the drainage channel of reverse flushing filter screen lower sealed body, sealed under reverse flushing filter screen
Body both sides produce pressure differential due to the change of flow velocity, and the pressure drives reverse flushing filter screen lower sealed body toward bottom offset, overcomes reset bullet
The tension force of spring, and then pull whole reverse flushing filter screen skeleton to move downward, the lower working face envelope in reverse flushing filter screen Skeleton assembly portion
Intake end cover is closed, reverse flushing filter screen spills from seal closure, and runner is switched, the water of import enters after being filtered through reverse flushing filter screen
Flowed out from inside, filter screen is backwashed, the impure water of backwash leads to via the draining of reverse flushing filter screen lower sealed body
Flow out in road.
The utility model also has another implementation, to strengthen backwash effect, i.e., is set up outside filter element
One scrapes element, realizes that machinery is scraped, and specific implementation is as follows：
A kind of prefilter device assembly for backwashing, 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 be opened and closed,
Also include the filter assemblies of concentric setting in filter flask；
The filter assemblies include filter element, the backwash element of concentric setting and scraping outside filter element
Wash element, scrape element include scraping skeleton, located at scrape skeleton bottom for drive scrape the actuator and extremely that skeleton rotates
A few edge scrape skeleton outside it is axially arranged scrape bar, the external dimensions of actuator is adapted to filter flask lower end, actuator and
Pollution discharge mechanism is connected；
Filter element is by screen pack body, filtering network framework and the intake end cover positioned at filtering network framework two ends and draining
End cap is constituted, and 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, enters
Water end (W.E.) lid and the inlet communication of head, form cavity between screen pack body and filter flask, during filtration state, water is worn from import
Cross intake end cover and enter internal from screen pack body exterior via cavity；
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 abuts 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 relative to filter element, seal closure is isolated with the import of head, seal closure top
With the outlet of head, during backwash filter state, working face can close intake end cover under department of assembly, realize that runner switches.
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 fixed reverse flushing filter screen body, reverse flushing filter screen capping is provided with seal groove, sealing ring is provided with seal groove.
Preferably, the intake end cover is circumferentially provided with least one seal groove, and sealing ring, water inlet end are provided with seal groove
Lid is uniformly provided with some distribution holes, and for water inlet to be 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, the reverse flushing filter screen skeleton is provided with close for department of assembly at least one end of reverse flushing filter screen body assembling
Sealing groove, is provided with sealing ring in seal groove.
Preferably, the screen pack skeletal internal is additionally provided with backwashing water distribution mechanism, for backwashing water uniformly to be divided
It is distributed in screen pack 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 strengthen with
The sealing effectiveness of head exit perimeter.
Preferably, the pollution discharge structure includes blowdown seal and blowdown valve body, and blowdown seal is sealed with filter flask and rotated
Connection, actuator and the grafting of blowdown seal or clamping.When needing machinery to scrape, manual rotation blowdown seal, and then drive
Actuator is rotated, and driving scrapes skeleton rotation, realizes scraping.
Preferably, the filtering 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, it is described to scrape element integrated injection molding, at least one seal groove is provided with outside actuator, in seal groove
It is provided with sealing ring.
The beneficial effects of the utility model are：The utility model reasonable in design, simple and convenient assembly can be flowed by switching
Road, realizes back flush.During filtration state, water is from the import of head through intake end cover via cavity from screen pack body
Outside enters internal, and impurity is retained by screen pack body, into the water after internal purification via reverse flushing filter screen skeleton, from close
Enclosure top flow to head outlet；During backwash working condition, pollution discharge structure, draining of the water from reverse flushing filter screen lower sealed body are opened
Passage is flowed out, and reverse flushing filter screen lower sealed body both sides produce pressure differential due to the change of flow velocity, and the pressure is driven under reverse flushing filter screen
Envelope body overcomes the tension force of back-moving spring toward bottom offset, and then pulls whole reverse flushing filter screen skeleton to move downward, and recoil filter wash
The lower work face closure intake end cover of network framework department of assembly, reverse flushing filter screen spills from seal closure, and runner is switched, import
Water enters after being filtered through reverse flushing filter screen and is flowed out from inside, and filter screen is backwashed, the impure water of backwash via
The drainage channel outflow of reverse flushing filter screen lower sealed body.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is sectional view of the present utility model；
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 seal, 32, blowdown valve body, 4, filter element,
41st, screen pack body, 42, filtering 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 with reference to accompanying drawing, the technical solution of the utility model is made further specifically
It is bright.
Embodiment 1：
A kind of prefilter device assembly for backwashing as illustrated in fig. 1 and 2, the prefilter device assembly includes：Band
The head 1 of inlet and outlet；
Filter flask 2, the upper end of filter flask 2 is spirally connected with head, and the lower end of filter flask 2 is provided with the pollution discharge structure 3 that can be opened and closed, the row
Dirty structure 3 includes blowdown seal 31 and blowdown valve body 32, and blowdown seal 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 screen pack body 41, filtering network framework 42 and entering positioned at the filtering two ends of network framework 42
Water end (W.E.) lid 43 and draining end cap 44 are constituted, the external dimensions of intake end cover 43 and draining end cap 44 respectively with the upper and lower end of filter flask 2
Portion is adapted to, the inlet communication of intake end cover 43 and head 1, and cavity, filtration shape are formed between screen pack body 41 and filter flask 2
During state, water enters internal via cavity through intake end cover 43 from import from the outside of screen pack body 41；
The backwash element 5 includes reverse flushing filter screen body 51, reverse flushing filter screen skeleton 52, seal closure 53, reset bullet
Spring 54 and the reverse flushing filter screen lower sealed body 55 with drainage channel, reverse flushing filter screen body 51 are socketed on reverse flushing filter screen skeleton 52
End department of assembly 52a and outside socket seal closure 53, the bottom of reverse flushing filter screen skeleton 52 is provided with positive stop lug boss 56, on back-moving spring 54
End abutted with positive stop lug boss 56, lower end abuts with draining end cap 44, reverse flushing filter screen lower sealed body 55 pass through draining end cap 44 with it is anti-
Flushing filtering net skeleton 52 is detachably connected by the cooperation of fastening screw and nut, and reverse flushing filter screen skeleton 52 can be with recoil filter wash
Net body 51 is synchronous relative to the axially activity of filter element 4, and seal closure 53 isolate with the import of head 1, at the top of seal closure 53 and
The outlet of head 1, during backwash filter state, working face can close intake end cover 43 under department of assembly 52a, realize that runner is cut
Change.
The utility model reasonable in design, simple and convenient assembly can realize back flush by switching runner.Filtration
During state, water enters internal via cavity through intake end cover 43 from the import of head 1 from the outside of screen pack body 41, impurity quilt
Screen pack body 41 is retained, and into the water after internal purification via reverse flushing filter screen skeleton 52, is flow to from the top of seal closure 53
Head 1 is exported；During backwash working condition, pollution discharge structure 3, drainage channel stream of the water from reverse flushing filter screen lower sealed body 55 are opened
Go out, the both sides of reverse flushing filter screen lower sealed body 55 produce pressure differential due to the change of flow velocity, are sealed under the pressure differential carry backwash filter screen
Body 55 overcomes the tension force of back-moving spring 54 toward bottom offset, and then pulls whole reverse flushing filter screen skeleton 52 to move downward, and recoils
The lower work face closure intake end cover 43 of the department of assembly 52a of filter wash network framework 52, reverse flushing filter screen 51 spills from seal closure 53, stream
Road is switched, and the water of import is flowed out after being filtered through reverse flushing filter screen 51 from inside, and screen pack body 41 is backwashed, and is recoiled
The impure water washed flows out via the drainage channel of reverse flushing filter screen lower sealed body 55.
The above-mentioned prefilter device assembly for backwashing one kind only in concrete scheme, but this is not limited only to, herein
On the basis of can make and targetedly adjusting, obtain preferred scheme, it is specific as follows：
Used as a kind of preferred scheme, the backwash element 5 also includes the recoil located at the top of reverse flushing filter screen skeleton 52
Filter wash 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 seal groove
Sealing ring, to improve the sealing effectiveness with seal closure 53.
In order to further optimize such scheme, the intake end cover 43 is circumferentially provided with least one seal groove, seal groove
Sealing ring is inside provided with, intake end cover 43 is uniformly provided with some distribution holes, for water inlet to be uniformly distributed in cavity, the draining
End cap 44 is circumferentially provided with least one seal groove, and sealing ring is provided with seal groove.
In order to further optimize such scheme, the reverse flushing filter screen skeleton 52 is used for the assembling of reverse flushing filter screen body 51
Working face is provided with seal groove under department of assembly 52a, and sealing ring is provided with seal groove.
In order to further optimize such scheme, backwashing water distribution mechanism 7 is additionally provided with inside the filtering network framework 42, used
In backwashing water is uniformly distributed in into the inner surface of screen pack body 41.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 being assembled with backwash element 5, intake tunnel lower end is provided with hollow assembling
Boss, mounting boss is provided with the locating slot for the assembling jump ring for positioning.It is logical that backwash element 5 inserts water inlet by installation opening
In road, the self-assembly portion 52a lower ends of whole reverse flushing filter screen skeleton 52 are entirely located in intake tunnel, and during backwash, recoil filter wash
The water of the outflow of network framework 52 is to enter intake tunnel, by exhalant canal spiral dispersing, washes away screen pack body 41, and moisture dissipates effect
It is really good, backwash efficiency high, intake tunnel lower end by mounting boss with filtering the lower end clamping of network framework 42, and by jump ring with
The cooperation positioning of locating slot, i.e. backwashing water distribution mechanism 7 are motionless relative to filtering network framework 42.
In order to further optimize such scheme, the upper end of the seal closure 53 sets at least provided with a seal groove in seal groove
There is sealing ring, for strengthening the sealing effectiveness with the exit perimeter of head 1.
In order to further optimize such scheme, in order to realize that processing is simple, reliable in quality, the filtering of the filter element 4
Network framework 42, intake end cover 43 and the integrated injection molding of draining end cap 44, backwash reverse flushing filter screen skeleton 52, the limit of element 5
Position boss 56 and reverse flushing filter screen cover 57 integrated injection moldings.
Embodiment 2：
In order to further improve the effect of backwash, the present embodiment 2 has done further excellent on the basis of embodiment 1
Change, with embodiment 1, difference is the prefilter device assembly basic structure for backwashing of the present embodiment 2：The filtering
Component including filter element 4, the backwash element 5 of concentric setting and scrapes element 6 outside filter element 4, such as Fig. 3
It is shown, scrape element 6 include scrape skeleton 61, located at scrape the bottom of skeleton 61 for drive scrape skeleton 61 rotate actuator
62 and at least one along scrape the outside of skeleton 61 it is axially arranged scrape bar 63, external dimensions and the lower end of filter flask 2 of actuator 62
Adaptation, actuator 62 is connected with pollution discharge mechanism 3；Filter element 4 is by screen pack body 41, filtering network framework 42 and positioned at filtering
The intake end cover 43 and draining end cap 44 at the two ends of network framework 42 are constituted, and the external dimensions of intake end cover 43 is fitted with the upper end of filter flask 2
Match somebody with somebody, the external dimensions of draining end cap 44 is adapted to actuator 62, the inlet communication of intake end cover 43 and head 1, screen pack body
Cavity is formed between 41 and filter flask 2, during filtration state, water is from import through intake end cover 43 via cavity from screen pack sheet
The outside of body 41 enters internal.
In the technical solution of the utility model, the pollution discharge structure 3 includes blowdown seal 31 and blowdown valve body 32, blowdown
The sealing of seal 31 and filter flask 2 is rotated and be connected, actuator 62 and the clamping of blowdown seal 31；When needing machinery to scrape, rotation manually
Turn blowdown seal 31, and then drive actuator 62 to rotate, driving scrapes skeleton 61 and rotates, and realizes scraping.
In order to further optimize such scheme, in order to realize that processing is simple, reliable in quality, the one of element 6 that scrapes is noted
Type is moulded, at least one seal groove is provided with outside actuator 32, sealing ring is provided with seal groove.
Embodiment described above is a kind of preferably scheme of the present utility model, not makees any to the utility model
Formal limitation, also has other variants and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (10)
1. the prefilter device assembly that can be backwashed, 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 be opened and closed
Structure（3）, it is characterised in that：
Also include filter flask（2）In concentric setting filter assemblies；
The filter assemblies include filter element（4）With the backwash element of concentric setting（5）；
The filter element（4）By screen pack body（41）, filtering network framework（42）And positioned at filtering 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, screen pack body（42）With filter flask（2）
Between form cavity, during filtration state, water from import pass through intake end cover（43）Via cavity from screen pack body（41）
Outside enters internal；
The backwash element（5）Including reverse flushing filter screen body（51）, reverse flushing filter screen skeleton（52）, seal closure（53）, it is 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, sealed 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 it is anti-
Flushing filtering net body（51）Synchronously relative 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 working face can be closed
Intake end cover（43）, realize that runner switches.
2. the prefilter device assembly that can be backwashed, 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 be opened and closed
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）With located at filter element（4）Outward
Portion scrapes element（6）, scrape element（6）Including scraping skeleton（61）, located at scraping skeleton（61）Bottom scrapes for driving
Skeleton（61）The actuator of rotation（62）Skeleton is scraped with least one edge（61）It is outside axially arranged to scrape 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 screen pack body（41）, filtering network framework（42）And positioned at filtering network framework（42）Two ends are entered
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, screen pack body
（41）With filter flask（2）Between form cavity, during filtration state, water from import pass through intake end cover（43）Via cavity from mistake
Filter screen body（41）Outside enters 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 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, 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 relative to filter element（4）Axially activity, seal closure（53）With head（1）Import isolation, it is close
Sealing cover（53）Top and head（1）Outlet, during backwash filter state, department of assembly（52a）Lower working face can close into
Water end (W.E.) lid（43）, realize that runner switches.
3. the prefilter device assembly for backwashing according to claim 1 and 2, it is characterised in that：The backwash unit
Part（5）Also include being 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, sealing ring is provided with seal groove.
4. the prefilter device assembly for backwashing according to claim 1 and 2, it is characterised in that：The intake end cover
（43）At least one seal groove is circumferentially provided with, sealing ring, intake end cover are provided with seal groove（43）It is uniformly provided with some distributions
Hole, for water inlet to be uniformly distributed in cavity, the draining end cap（44）Circumferentially it is provided with least one seal groove, seal groove
Inside it is provided with sealing ring.
5. the prefilter device assembly for backwashing according to claim 1 and 2, it is characterised in that：The recoil filter wash
Network framework（52）For reverse flushing filter screen body（51）Working face is provided with seal groove under the department of assembly (52a) of assembling, in seal groove
It is provided with sealing ring.
6. the prefilter device assembly for backwashing according to claim 1 and 2, it is characterised in that：The screen pack bone
Frame（42）Inside is additionally provided with backwashing water distribution mechanism（7）, for backwashing water to be uniformly distributed in into screen pack body（41）It is interior
Surface.
7. the prefilter device assembly for backwashing according to claim 1 and 2, 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. the prefilter device assembly for backwashing according to claim 2, it is characterised in that：The pollution discharge structure（3）
Including blowdown seal（31）With blowdown valve body（32）, blowdown seal（31）With filter flask（2）Sealing rotates connection, actuator
（62）With blowdown seal（31）Grafting or clamping.
9. according to the prefilter device assembly for backwashing described in claim 3, it is characterised in that：The filter element（4）'s
Filtering network framework（42）, intake end cover（43）With draining end cap（44）Integrated injection molding, backwashes element（5）Recoil filter wash
Network framework（52）, positive stop lug boss（56）Covered with reverse flushing filter screen（57）Integrated injection molding.
10. according to the prefilter device assembly for backwashing described in claim 2, it is characterised in that：It is described to scrape element（6）One
Body injection moulding, actuator（62）Outside is provided with least one seal groove, and sealing ring is provided with seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621171276.7U CN206168024U (en) | 2016-10-26 | 2016-10-26 | But leading filter spare of back flush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621171276.7U CN206168024U (en) | 2016-10-26 | 2016-10-26 | But leading filter spare of back flush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206168024U true CN206168024U (en) | 2017-05-17 |
Family
ID=58680993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621171276.7U Expired - Fee Related CN206168024U (en) | 2016-10-26 | 2016-10-26 | But leading filter spare of back flush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206168024U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422463A (en) * | 2016-10-26 | 2017-02-22 | 海宁市倍世环保科技有限公司 | Pre-filter assembly capable of being back washed |
| CN109939480A (en) * | 2017-12-20 | 2019-06-28 | 汉斯萨塞拉思有限责任两合公司 | Backwash filter device assembly |
| WO2024099355A1 (en) * | 2022-11-11 | 2024-05-16 | 海宁市倍世环保科技有限公司 | Stacked disc combined vertical pre-filter with backwashing function |
-
2016
- 2016-10-26 CN CN201621171276.7U patent/CN206168024U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422463A (en) * | 2016-10-26 | 2017-02-22 | 海宁市倍世环保科技有限公司 | Pre-filter assembly capable of being back washed |
| CN106422463B (en) * | 2016-10-26 | 2018-08-28 | 海宁市倍世环保科技有限公司 | The prefilter device assembly that can be backwashed |
| CN109939480A (en) * | 2017-12-20 | 2019-06-28 | 汉斯萨塞拉思有限责任两合公司 | Backwash filter device assembly |
| CN109939480B (en) * | 2017-12-20 | 2021-09-14 | 汉斯萨塞拉思有限责任两合公司 | Back flush filter |
| WO2024099355A1 (en) * | 2022-11-11 | 2024-05-16 | 海宁市倍世环保科技有限公司 | Stacked disc combined vertical pre-filter with backwashing function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106422463B (en) | The prefilter device assembly that can be backwashed | |
| CN206168024U (en) | But leading filter spare of back flush | |
| CN217909268U (en) | Back-washing pre-filter with improved structure | |
| CN206168025U (en) | A moisture cloth mechanism for but, leading filtering component of back flush | |
| CN208839154U (en) | It is a kind of to concentrate rotary backwash filter | |
| CN211799169U (en) | Spiral water inlet pre-filter with backwashing function | |
| CN203640995U (en) | Pump inlet automatic back flush filter screen | |
| CN110404314A (en) | Fore filter with top control backwashing function | |
| CN219744113U (en) | Water purifier with self-cleaning filter element | |
| CN201776008U (en) | Back wash structure of filter element | |
| CN208526018U (en) | A kind of glass reinforced plastic water purifier | |
| CN214485796U (en) | Novel sand filter | |
| CN206139023U (en) | Purifier and ultrafiltration membrane group spare thereof | |
| CN214158784U (en) | Faucet water purifying device with replaceable and cleanable filter element | |
| CN214971995U (en) | Shallow sand filter that backwash efficiency is high | |
| CN206823297U (en) | Self-cleaning filter | |
| CN107362598A (en) | A kind of self-cleaning filter | |
| CN209646249U (en) | Ultra-filtration membrane device | |
| CN210543687U (en) | Reverse sewage treatment plant of return water formula | |
| CN201059376Y (en) | Adjustable flushing valve and water clarifier | |
| CN206103469U (en) | Backwashing filter | |
| CN218954091U (en) | Ball valve mechanism convenient to open and close | |
| CN214158783U (en) | Water purifier for tap | |
| CN219290762U (en) | Front filter | |
| CN220758242U (en) | Water cap with anti-blocking structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20201026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |