CN110404314A - Fore filter with top control backwashing function - Google Patents
Fore filter with top control backwashing function Download PDFInfo
- Publication number
- CN110404314A CN110404314A CN201910597882.7A CN201910597882A CN110404314A CN 110404314 A CN110404314 A CN 110404314A CN 201910597882 A CN201910597882 A CN 201910597882A CN 110404314 A CN110404314 A CN 110404314A
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- CN
- China
- Prior art keywords
- filter screen
- reverse flushing
- drive shaft
- backwash
- flushing filter
- 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.)
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Links
- 238000011001 backwashing Methods 0.000 title claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000001914 filtration Methods 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000000746 purification Methods 0.000 claims abstract description 6
- 238000011010 flushing procedure Methods 0.000 claims description 100
- 230000002441 reversible effect Effects 0.000 claims description 93
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 239000003651 drinking water Substances 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 238000011045 prefiltration Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000009288 screen filtration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005406 washing Methods 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
- B01D29/17—Supported filter elements arranged for inward flow filtration open-ended the arrival of the mixture to be filtered and the discharge of the concentrated mixture are situated on both opposite sides of the filtering element
-
- 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
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
- B01D29/682—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with a rotary movement with respect to the filtering element
Abstract
The present invention relates to a kind of fore filters with top control backwashing function, comprising: have the head of inlet and outlet, with the filter flask with the closed blowdown part of energy of head cooperation, filtering and backwash mechanism are equipped in the filter flask, gap outside filtering and backwash mechanism between filter flask constitutes raw water chamber, filtering and backwash mechanism Inner Constitution purification water cavity and, the filtering and backwash mechanism include the backwash element of filter element and concentric setting, raw water chamber can be connected to the water inlet of filter element, purification water cavity is connected to water outlet, the backwash element can be with respect to filter element by the axial movement of outer power drive, the backwash element is fixed to be mechanically connected with external force output mechanism, and external force output mechanism is set to the top of head.Structure of the invention design is rationally, easy for assembly, can realize back flush by switching runner.
Description
Technical field
The present invention relates to a kind of fore filters with top control backwashing function, belong to water process cleaning equipment skill
Art field.
Background technique
Fore filter in the prior art include: head, upper end and head connection filter flask, connect with filter flask lower end
Draining sealing element and with the drainage ball valve that connect of draining sealing element, be provided with filtering network framework in filter flask, filter network framework outside
Wall is arranged with filter screen.During use, water flows into the gap between filter flask and filter screen from the water inlet of head, passes through
The center that filtering network framework is flowed into after filter screen filtration, is then flow to the water outlet of head by filter screen frame center.
Using this fore filter, it can filter at drinking water before leading place is for use and derive from drinking water supply
Drinking water.The impurity accumulated in filter screen gradually clog filter screens.Cause undesirable pressure drop as a result,.Influence preposition mistake
The service life of filter.Disassembled by hand is cleared up in the prior art, and cleaning efficiency is low, and each component easy to damage, therefore, it is necessary to design one
The prefilter device assembly that kind can backwash, by switching runner, back flush is generated in the opposite direction through filter screen
Water flow cleans filter screen again, and the water that impurity is received in back flush procedure is excluded by drainage ball valve.
Present invention seek to address that this technical problem, provides a kind of prefilter with top control backwashing function
Device.
Summary of the invention
It is an object of the present invention to solving the deficiencies in the prior art, provide a kind of with top control backwashing function
Fore filter.
The technical solution adopted by the present invention to solve the technical problems is:
Fore filter with top control backwashing function comprising: the head with inlet and outlet, with
The filter flask for having the closed blowdown part of energy of head cooperation, the filter flask is interior to be equipped with filtering and backwash mechanism, filters and recoils
Gap outside washing machine structure between filter flask constitutes raw water chamber, and filtering and backwash mechanism Inner Constitution purify water cavity, the mistake
Filter and backwash mechanism include the backwash element of filter element and concentric setting, the water inlet energy of raw water chamber and filter element
Enough connections, purification water cavity are connected to water outlet, and the backwash element can be transported with respect to filter element by the axial direction of outer power drive
Dynamic, to realize the switching of filtering function and backwashing function, the backwash element is fixed to be connected with external force output mechanism machinery
It connects, and external force output mechanism is set to the top of head.
Preferably, the filter element by filter screen ontology, filtering network framework and positioned at filtering network framework both ends into
Water end (W.E.) lid and draining end cap composition, the external dimensions of intake end cover is adapted to the upper end of filter flask, intake end cover and head into
Mouth connection, forms raw water chamber between filter screen ontology and filter flask；
The backwash element includes reverse flushing filter screen ontology, reverse flushing filter screen skeleton and the recoil filter wash with drainage channel
Net lower sealed body, reverse flushing filter screen ontology are socketed on the department of assembly of reverse flushing filter screen skeleton, the reverse flushing filter screen sheet being placed in head
Body assembly cavity and both ends sealing, reverse flushing filter screen lower sealed body pass through draining end cap and are detachably connected with reverse flushing filter screen skeleton, arrange
Water end (W.E.) lid and reverse flushing filter screen skeleton lower end circumferential seal, reverse flushing filter screen skeleton can it is synchronous with reverse flushing filter screen ontology relative to
The axial activity of filter element；
After being axially moved certain stroke down, working face can close intake end cover, this body drain of reverse flushing filter screen under department of assembly
Out, runner switching is realized, into backwash operating mode；
After being up axially moved certain stroke, working face opens intake end cover under department of assembly, and reverse flushing filter screen ontology is closed,
Runner switching is realized, into filtration mode.
Preferably, the external force output mechanism includes: drive shaft and the manual actuation knob for being fixed on its end, head
Top is equipped with drive shaft assembly cavity, and drive shaft and head are spirally connected and can seal, and drive shaft extends in reverse flushing filter screen skeleton, with
The intraskeletal reverse flushing filter screen lower sealed body of reverse flushing filter screen abuts, and can drive reverse flushing filter screen skeleton and reverse flushing filter screen lower sealed body
It is common to be axially moved and rotate.
Preferably, the manual actuation knob includes knob body and locating piece, knob body be socketed on locating piece and with
Driveshaft end is detachably connected, and locating piece and drive shaft assembly cavity are spirally connected fixation.
Preferably, the external force output mechanism includes: drive shaft, the driving motor coupled with its end and axial stroke
Control mechanism, head top are equipped with drive shaft assembly cavity, and drive shaft and head are spirally connected and can seal, and drive shaft extends to backwash
It in strainer skeleton, is abutted with the intraskeletal reverse flushing filter screen lower sealed body of reverse flushing filter screen, reverse flushing filter screen skeleton and anti-can be driven
Flushing filtering net lower sealed body is axially moved and rotates jointly, and the positive and negative rotation of driving motor is controlled by axial stroke control mechanism, into
And the axial movement stroke of drive shaft is driven, the axial stroke control mechanism includes limit switch.
Preferably, the first locating part is equipped in the reverse flushing filter screen skeleton, drive shaft is equipped with the second limit of adaptation
Part controls drive shaft axial displacement stroke by the cooperation of the first and second locating part.
Preferably, the backwash moisture that bigger flow velocity is generated with smaller flow diameter is equipped in the backwash element
Cloth member, the backwashing water distribution part is sheathed on drive shaft and axial position is relatively fixed, and can rotate around drive shaft.
Preferably, the blowdown part of the filter flask is equipped with a mid diameter and gradually reduces, the type chamber that both ends diameter incrementally increases；
When filtration condition, the end outer rim of reverse flushing filter screen lower sealed body and diameter minimum portion cooperate, and realize the sealing of blowdown part, switch into
When backwashing state, reverse flushing filter screen lower sealed body moves down under the action of by outer power drive, incrementally increases into diameter
Part, constitutes drain outlet between reverse flushing filter screen lower sealed body and type chamber, blowdown part is opened；Reverse flushing filter screen lower sealed body is at least held
Portion's outer rim has elastic deformation and reset function.
Preferably, backwashing water distribution part is equipped with several nozzles, can injection water along a tangential direction, it is preferred that
The nozzle of the backwashing water distribution part is in axial direction staggered.
Preferably, directional cleaning component, including conducting element and adjustment part, conducting element packet are additionally provided with outside the filter element
At least one is included to fix and can be adapted to filter element bottom shape along the axially extending diversion trench of filter element and with diversion trench
Assembling stand, assembling stand is equipped with pilot hole, is socketed on reverse flushing filter screen lower sealed body by pilot hole, assembling stand bottom be additionally provided with to
A few locating part；
The cavity that adjustment part is equipped with pilot hole and is adapted to assembling stand, is socketed under reverse flushing filter screen by pilot hole and is sealed
It body and can rotate synchronously, cavity edge is equipped at least one limiting slot, and cavity side is equipped at least one through-hole；
When reverse flushing filter screen lower sealed body axial direction downlink and rotation, adjustment part is driven, and then drive conducting element around filter element
It circumferentially rotates, backwashing water is discharged via through-hole and drain outlet, realizes large granular impurity backwash discharge；
Reverse flushing filter screen lower sealed body uplink rotates in reseting procedure, and adjustment part and conducting element dislocation, adjustment part through-hole are closed
It closes, gap of the backwashing water between conducting element and adjustment part enters drain outlet discharge, realizes negative pressure orientation backwash.
Preferably, the drive shaft uses split-type design, including upper drive shaft and lower drive shaft, upper drive shaft and head
It is spirally connected, lower drive shaft is detachably connected with upper drive shaft.
The beneficial effects of the present invention are: structure of the invention design is rationally, and it is easy for assembly, it can be realized anti-by switching runner
To flushing.When filtration state, water from the import of head pass through intake end cover via raw water chamber from filter screen body exterior into
Enter inside, impurity is retained by filter screen ontology, into internal purified water via reverse flushing filter screen skeleton, from seal closure top
Portion flow to head outlet；When backwashing working condition, by external force output mechanism, drive shaft downlink is driven, is backwashed under element
Row, reverse flushing filter screen ontology are leaked out from seal closure, and work face closure intake end cover under the department of assembly of reverse flushing filter screen skeleton, together
When open blowdown part, realize runner switching, the water of import after reverse flushing filter screen bulk filter from inside flow out, to filter screen sheet
Body is backwashed, and the impure water of backwash is flowed out via the drainage channel of reverse flushing filter screen lower sealed body, is arranged via blowdown part
Out.
Detailed description of the invention
Fig. 1 is the perspective view of fore filter of the present invention；
Fig. 2 is the exploded view of fore filter of the present invention；
Fig. 3 is the assembling schematic diagram of fore filter of the present invention；
Fig. 4 is the cross-sectional view under the filtration condition of fore filter of the present invention；
Fig. 5 is the cross-sectional view under the backwashing state of fore filter of the present invention；
Fig. 6 is the main view of 2 fore filter of the embodiment of the present invention；
Fig. 7 is the exploded view of 2 fore filter of the embodiment of the present invention；
Fig. 8 is the cross-sectional view of 2 fore filter of the embodiment of the present invention.
In figure: 1, head, 2, blowdown part, 3, filter flask, 4, filter element, 41, filter screen ontology, 42, filtering network framework,
43, intake end cover, 44, draining end cap, 5, backwash element, 51, reverse flushing filter screen ontology, 52, reverse flushing filter screen skeleton, 52a,
Department of assembly, 53, reverse flushing filter screen ontology assembly cavity, 54, reverse flushing filter screen lower sealed body, 6, drive shaft, 61, touch part, 6a, upper drive
Moving axis, 6b, lower drive shaft, 7, manual actuation knob, 7a, knob body, 7b, locating piece, 8, backwashing water distribution part, 8a, spray
Mouth, 9, type chamber, 10, directional cleaning component, 11, conducting element, 11a, diversion trench, 11b, assembling stand, 11c, locating part, 12, adjustment
Part, 12a, limiting slot, 12b, through-hole, 13, driving motor, 14, limit switch, 15, fixing seat, 16, protective cover.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, technical scheme of the present invention will be further explained in detail.
Embodiment 1
As shown in figures 1 and 3, the fore filter with top control backwashing function comprising: with water inlet and
The head 1 of water outlet, the filter flask 3 with the closed blowdown part 2 of energy cooperated with head 1, the filter flask 3 are interior equipped with filtering and anti-
Flushing machine, filtering and backwash mechanism outside and filter flask 3 between gap constitute raw water chamber, filtering and backwash mechanism inside
Purification water cavity is constituted, the filtering and backwash mechanism include the backwash element 5 of filter element 4 and concentric setting, raw water
Chamber can be connected to the water inlet of filter element 4, and purification water cavity is connected to water outlet, and the backwash element 5 can be with respect to mistake
By the axial movement of outer power drive, the backwash element 5 is fixed to be mechanically connected filtering element 4 with external force output mechanism, and outer
Power output mechanism is set to the top of head 1.
Specific to the present invention, as shown in Fig. 2, the filter element 4 is by filter screen ontology 41, filtering network framework 42 and position
Intake end cover 43 and draining end cap 44 in filtering 42 both ends of network framework form, external dimensions and the filter flask 3 of intake end cover 43
The position adaptation that upper end matches, the inlet communication of intake end cover 43 and head 1, shape between filter screen ontology 41 and filter flask 3
At raw water chamber；
The backwash element 5 is including reverse flushing filter screen ontology 51, reverse flushing filter screen skeleton 52 and with the anti-of drainage channel
Flushing filtering net lower sealed body 54, reverse flushing filter screen ontology 51 are socketed on 52 department of assembly 52a of backwash net skeleton, are placed in head 1
Reverse flushing filter screen ontology assembly cavity 53 and both ends sealing, reverse flushing filter screen lower sealed body 54, which passes through, drains end cap 44 and reverse flushing filter screen
Skeleton 52 is detachably connected (socket or abutting), draining end cap 44 and 52 lower end circumferential seal of reverse flushing filter screen skeleton, backwash
Strainer skeleton 52 can be synchronous with reverse flushing filter screen ontology 51 relative to the axial activity of filter element 4；
When being axially moved down, backwash filter state, working face can close intake end cover 43 under department of assembly 52a, recoil
Filter wash net ontology 51 leaks out, and the water energy of 1 water inlet of head passes through reverse flushing filter screen ontology 51, runner switching is realized, into recoil
Wash operating mode.
After being up axially moved certain stroke, working face opens intake end cover 43, reverse flushing filter screen ontology under department of assembly 52a
51 closings realize runner switching, into filtration mode.
Specific to the present invention, as shown in Fig. 2, the external force output mechanism includes: drive shaft 6 and is fixed on its end
Manual actuation knob 7 is equipped with 6 assembly cavity of drive shaft at the top of head 1, and drive shaft 6 and head 1 are spirally connected and can seal, and drive shaft 6 is prolonged
It extends in reverse flushing filter screen skeleton 52, is abutted with the reverse flushing filter screen lower sealed body 54 in reverse flushing filter screen skeleton 52, can be driven anti-
Flushing filtering net skeleton 52 and reverse flushing filter screen lower sealed body 54 are axially moved and rotate jointly.
In order to avoid drive shaft 6 and 1 accidental separation of head, the manual actuation knob 7 includes knob body 7a and positioning
Part 7b, knob body 7a are socketed on locating piece 7b and are detachably connected that (clamping of polygon limit is a kind of with 6 end of drive shaft
Realization rate), locating piece 7b is spirally connected with drive shaft assembly cavity.
More specifically, it is equipped with the first locating part 52c in the reverse flushing filter screen skeleton 52, drive shaft 6 is equipped with
Second locating part 6a of adaptation controls 6 axial displacement stroke of drive shaft by the cooperation of the first and second locating part.
For better backwash effect, it is equipped in the backwash element 5 bigger with the generation of smaller flow diameter
The backwashing water of flow velocity is distributed part 8, and the backwashing water distribution part 8 is sheathed on drive shaft 6 and axial position is relatively fixed, and energy
It is rotated around drive shaft 6.
In the present invention, as shown in Figure 4 and Figure 5, the blowdown part 2 of the filter flask 3 is equipped with a mid diameter and gradually reduces, both ends
The type chamber 9 that diameter incrementally increases；When filtration condition, the end outer rim of reverse flushing filter screen lower sealed body 54 and diameter minimum portion cooperate,
Realize blowdown part 2 seal, when switching into backwashing state, reverse flushing filter screen lower sealed body 54 under the action of by outer power drive,
It moves down, the part incrementally increased into diameter constitutes drain outlet between reverse flushing filter screen lower sealed body 54 and type chamber 9, row
Dirty part 2 is opened；At least end outer rim of reverse flushing filter screen lower sealed body 54 has elastic deformation and reset function, by elastic deformation and
It resets, that is, is able to achieve closed function, is also able to achieve open function.
In the present invention, in order to realize the better effect of backwashing water distribution, the backwashing water distribution part 8 is equipped with several sprays
Mouth 8a, can injection water along a tangential direction, it is preferred that the nozzle 8a of the backwashing water distribution part 8 in axial direction interlocks
Setting.
In order to further realize negative pressure orientation backwash, backwash effect is improved, is additionally provided with outside the filter element 4
Directional cleaning component 10, including conducting element 11 and adjustment part 12, conducting element 11 include that at least one is axially extending along filter element 4
Diversion trench 11a and the assembling stand 11b, assembling stand 11b that fix and can be adapted to 4 bottom shape of filter element with diversion trench 11a
Equipped with pilot hole, reverse flushing filter screen lower sealed body 54 is socketed on by pilot hole, the bottom assembling stand 11b is additionally provided at least one limit
Part 11c；
The cavity that adjustment part 12 is equipped with pilot hole and is adapted to assembling stand 11b, is socketed on recoil filter wash by pilot hole
It net lower sealed body 54 and can rotate synchronously, cavity edge is equipped at least one limiting slot 12a, and cavity side is equipped at least one through-hole
12b；
When the axial downlink of reverse flushing filter screen lower sealed body 54 and rotation, adjustment part 12 is driven, and then conducting element 11 is driven to bypass
Filtering element 4 circumferentially rotates, and backwashing water is discharged via through-hole 12b and drain outlet, realizes large granular impurity backwash discharge；
54 uplink of reverse flushing filter screen lower sealed body rotates in reseting procedure, and adjustment part 12 and conducting element 11 misplace, adjustment part 12
Through-hole 12b is closed, and gap of the backwashing water between conducting element 11 and adjustment part 12 enters drain outlet discharge, realizes negative pressure
Orientation backwash.
Specific to the present invention, drive shaft 6 is in order to easy to process, and preferably adaptation, and the drive shaft 6 is using split type
Design, including upper drive shaft 6a and lower drive shaft 6b, upper drive shaft 6a are spirally connected with head 1, lower drive shaft 6b and upper drive shaft 6a
It is detachably connected and (is such as clamped or is spirally connected), split-type design has the further advantage that drive shaft 6a can cooperate the ruler of head 1
Larger size that is very little, doing, lower drive shaft 6b can do lesser size, to guarantee that the space in backwash element 5 is not excessive
Occupancy.
Embodiment 2
As shown in figs 6-8, as an alternative, other structures are substantially with embodiment 1, the difference is that external force is defeated
Mechanism out, the external force output mechanism include: drive shaft 6, the driving motor coupled with its end 13 and axial stroke control
Mechanism is equipped with drive shaft assembly cavity at the top of head 1, and drive shaft 6 and head 1 are spirally connected and can seal, and drive shaft 6 extends to backwash
In strainer skeleton 52, is abutted with the reverse flushing filter screen lower sealed body 54 in reverse flushing filter screen skeleton 52, reverse flushing filter screen bone can be driven
Frame 52 and reverse flushing filter screen lower sealed body 54 are axially moved and rotate jointly, pass through axial stroke control mechanism (such as limit switch 14)
The positive and negative rotation of driving motor 13 is controlled, and then drives the axial movement stroke of drive shaft 6.Specifically limit switch 14 is equipped with 2
A, respectively upper limit switch and lower position switch, wherein upper and lower limit bit switch is assemblied in fixing seat 15, driving motor 13
Outside is also detachably connected and (is spirally connected or is clamped) and has protective cover 16, and the assembly building of upper and lower limit bit switch is away from meeting axial stroke need
It asks.The work of upper and lower limit bit switch 14 is controlled by the touch part 61 being arranged in drive shaft 6.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (10)
1. the fore filter with top control backwashing function comprising: the head with inlet and outlet, with machine
The filter flask for having the closed blowdown part of energy of head cooperation, the filter flask is interior to be equipped with filtering and backwash mechanism, filters and backwashes
Gap outside mechanism between filter flask constitutes raw water chamber, and filtering and backwash mechanism Inner Constitution purify water cavity, the filtering
And backwash mechanism includes the backwash element of filter element and concentric setting, the water inlet of raw water chamber and filter element can
Connection, purification water cavity are connected to water outlet, which is characterized in that the backwash element can be with respect to filter element by outer power drive
Axial movement, to realize the switching of filtering function and backwashing function, the backwash element it is fixed export machine with external force
Structure mechanical connection, and external force output mechanism is set to the top of head.
2. the fore filter according to claim 1 with top control backwashing function, which is characterized in that the filtering
Element is formed by filter screen ontology, filtering network framework and positioned at the intake end cover and draining end cap for filtering network framework both ends, into
The external dimensions of water end (W.E.) lid is adapted to the upper end of filter flask, the inlet communication of intake end cover and head, filter screen ontology and filter flask
Between formed raw water chamber；
The backwash element includes under reverse flushing filter screen ontology, reverse flushing filter screen skeleton and reverse flushing filter screen with drainage channel
Feng Ti, reverse flushing filter screen ontology are socketed on the department of assembly of reverse flushing filter screen skeleton, the reverse flushing filter screen ontology dress being placed in head
With chamber and both ends seal, and reverse flushing filter screen lower sealed body passes through draining end cap and is detachably connected with reverse flushing filter screen skeleton, discharge ends
Lid and reverse flushing filter screen skeleton lower end circumferential seal, reverse flushing filter screen skeleton can be synchronous with reverse flushing filter screen ontology relative to filtering
The axial activity of element；
After being axially moved certain stroke down, working face can close intake end cover under department of assembly, and reverse flushing filter screen ontology leaks out, real
Existing runner switching, into backwash operating mode；
After being up axially moved certain stroke, working face opens intake end cover under department of assembly, and the closing of reverse flushing filter screen ontology is realized
Runner switching, into filtration mode.
3. the fore filter according to claim 1 with top control backwashing function, which is characterized in that the external force
Output mechanism includes: drive shaft and the manual actuation knob for being fixed on its end, is equipped with drive shaft assembly cavity at the top of head, drives
Moving axis and head are spirally connected and can seal, and drive shaft extends in reverse flushing filter screen skeleton, with the intraskeletal recoil of reverse flushing filter screen
Filter wash net lower sealed body abuts, and reverse flushing filter screen skeleton and reverse flushing filter screen lower sealed body can be driven to be axially moved and rotate jointly.
4. the fore filter according to claim 1 with top control backwashing function, which is characterized in that described manual
Drive knob includes knob body and locating piece, and knob body is socketed on locating piece and is detachably connected with driveshaft end, fixed
Position part and drive shaft assembly cavity are spirally connected fixation.
5. the fore filter according to claim 1 with top control backwashing function, which is characterized in that the external force
Output mechanism includes: drive shaft, the driving motor coupled with its end and axial stroke control mechanism, is equipped with and drives at the top of head
Moving axis assembly cavity, drive shaft and head are spirally connected and can seal, and drive shaft extends in reverse flushing filter screen skeleton, with reverse flushing filter screen
Intraskeletal reverse flushing filter screen lower sealed body abuts, and reverse flushing filter screen skeleton and reverse flushing filter screen lower sealed body can be driven axially to transport jointly
Dynamic and rotation is controlled the positive and negative rotation of driving motor by axial stroke control mechanism, and then drives the axial movement row of drive shaft
Journey, the axial stroke control mechanism includes limit switch.
6. the fore filter with top control backwashing function according to claim 3 or 4 or 5, which is characterized in that institute
It states and is equipped with the first locating part in reverse flushing filter screen skeleton, drive shaft is equipped with the second locating part of adaptation, passes through the first and second limit
The cooperation of part controls drive shaft axial displacement stroke.
7. the fore filter with top control backwashing function according to claim 3 or 4 or 5, which is characterized in that institute
It states and is equipped with the backwashing water distribution part for generating bigger flow velocity with smaller flow diameter, the backwashing water in backwash element
Distribution part is sheathed on drive shaft and axial position is relatively fixed, and can rotate around drive shaft, and the backwashing water distribution part is equipped with
Several nozzles, can injection water along a tangential direction, it is preferred that the nozzle of the backwashing water distribution part in axial direction interlocks
Setting.
8. the fore filter with top control backwashing function according to claim 3 or 4 or 5, which is characterized in that institute
The blowdown part for stating filter flask is equipped with a mid diameter and gradually reduces, the type chamber that both ends diameter incrementally increases；When filtration condition, backwash
The end outer rim of strainer lower sealed body and diameter minimum portion cooperate, and realize the sealing of blowdown part, when switching into backwashing state, recoil
Filter wash net lower sealed body moves down under the action of by outer power drive, the part incrementally increased into diameter, under reverse flushing filter screen
Drain outlet is constituted between Feng Tiyu type chamber, blowdown part is opened；Reverse flushing filter screen lower sealed body at least end outer rim has elastic shape
Change and reset function.
9. the fore filter according to claim 1 with top control backwashing function, which is characterized in that the filtering
Element-external is additionally provided with directional cleaning component, including conducting element and adjustment part, and conducting element includes at least one along filter element axis
The assembling stand fixed and can be adapted to filter element bottom shape to the diversion trench of extension and with diversion trench, assembling stand are equipped with assembly
Hole is socketed on reverse flushing filter screen lower sealed body by pilot hole, and assembling stand bottom is additionally provided at least one locating part；
Adjustment part is equipped with pilot hole and the cavity that is adapted to assembling stand, by pilot hole be socketed on reverse flushing filter screen lower sealed body and
It can rotate synchronously, cavity edge is equipped at least one limiting slot, and cavity side is equipped at least one through-hole；
When reverse flushing filter screen lower sealed body axial direction downlink and rotation, adjustment part is driven, and then drives conducting element around filter element circumferential direction
Rotation, backwashing water are discharged via through-hole and drain outlet, realize large granular impurity backwash discharge；
Reverse flushing filter screen lower sealed body uplink rotates in reseting procedure, and adjustment part and conducting element dislocation, adjustment part through-hole are closed, instead
Gap of the flushing water between conducting element and adjustment part enters drain outlet discharge, realizes negative pressure orientation backwash.
10. the fore filter with top control backwashing function according to claim 3 or 4, which is characterized in that described
Drive shaft uses split-type design, including upper drive shaft and lower drive shaft, upper drive shaft to be spirally connected with head, lower drive shaft and upper drive
Moving axis is detachably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910597882.7A CN110404314A (en) | 2019-07-04 | 2019-07-04 | Fore filter with top control backwashing function |
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| CN111318067A (en) * | 2020-03-30 | 2020-06-23 | 福建西河卫浴科技有限公司 | Water inlet filter screen pollution discharge structure and shower |
| CN113975873A (en) * | 2021-11-30 | 2022-01-28 | 江苏纯悦环境科技有限公司 | Back flush filter |
| CN114632365A (en) * | 2022-02-25 | 2022-06-17 | 宁波方太厨具有限公司 | Filter element flushing device and working method |
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| CN114632365B (en) * | 2022-02-25 | 2022-11-15 | 宁波方太厨具有限公司 | Filter element flushing device and working method |
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