CN106964183A - A kind of backwash filter - Google Patents
A kind of backwash filter Download PDFInfo
- Publication number
- CN106964183A CN106964183A CN201710360090.9A CN201710360090A CN106964183A CN 106964183 A CN106964183 A CN 106964183A CN 201710360090 A CN201710360090 A CN 201710360090A CN 106964183 A CN106964183 A CN 106964183A
- Authority
- CN
- China
- Prior art keywords
- cleaning rod
- filter core
- discharge tube
- sewage discharge
- backwash
- 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.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 claims abstract description 179
- 239000010865 sewage Substances 0.000 claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000005202 decontamination Methods 0.000 claims abstract description 23
- 230000003588 decontaminative effect Effects 0.000 claims abstract description 23
- 238000010276 construction Methods 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 17
- 239000002689 soil Substances 0.000 claims description 15
- 230000000903 blocking effect Effects 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 abstract description 2
- 235000015110 jellies Nutrition 0.000 description 17
- 239000008274 jelly Substances 0.000 description 17
- 239000012535 impurity Substances 0.000 description 16
- 238000001914 filtration Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 238000011010 flushing procedure Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000013019 agitation Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000037213 diet Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000013589 supplement 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
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward 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
-
- 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
-
- 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
- B01D29/688—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with backwash arms or shoes acting on the cake side
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention provides a kind of backwash filter, belong to field of mechanical technique.It solves the problem of existing filter developing result is not good.It includes body, there is water inlet on body, delivery port and the sewage draining exit that can be opened and closed, tubular filter core is provided with body, the water inlet of body is connected with delivery port by filter core, the cleaning rod with inner chamber is provided with filter core, the sewage discharge tube with the intracavity inter-connection of cleaning rod is offered on the sidepiece of cleaning rod, filter core bottom has the decontamination mouthful being connected with sewage draining exit, cleaning rod lower ending opening is simultaneously relative with decontamination mouthful, the outside of cleaning rod has forced section, impeller is provided with cleaning rod, and between the bottom wall of the lower end of cleaning rod and filter core inner chamber have when current pass through impeller when can support the supporting construction that cleaning rod is rotated.It has the advantages that dirt-absorbing ability is strong, developing result is good.
Description
Technical field
The invention belongs to field of mechanical technique, it is related to a kind of filter, more particularly to a kind of backwash filter.
Background technology
With the progress and the improvement of people's living standards of science and technology, people start to the use water and diet in daily life
Health has higher requirement.At present, increasing people starts using a kind of fore filter to carrying out primary purification with water,
To be filtered to impurity in pipe network etc..The operation principle of fore filter is generally：Running water is before water inlet is linked into
Put in the housing of filter, flowed out for users to use from delivery port again after the filter element filtering in housing.This is fore filter
Normal operating conditions, but many impurity and jelly, impurity and jelly can be remained on filter core in use for some time
Typically it is difficult to clean up, is all to connect blowoff valve, it is necessary to open blowoff valve when clearing up in the housing lower end of fore filter at present, makes
The blow-off pipe of blowdown is connected with water inlet, running water is flowed through from water inlet, be will be attached to during by cartridge surface on filter core
Impurity develop and be discharged to by blowoff valve in blow-off pipe.
It is only simple using cartridge surface is run water through however, for the jelly being bonded on filter core, often because
Not enough lead to not effectively clear up jelly from filter core for flow intensity.In order to solve this problem, China
Patent was once disclosed a kind of fore filter [application number：201520252203.X], it includes being connected water with exterior line
Connecting portion and the filter house communicated with connecting portion, filter house bottom are provided with the ball valve of draining, and filter house includes the screen pack of tubular,
Inside screen pack along its it is axially arranged have a siphon type flusher, siphon type flusher is included along the axially arranged length of screen pack
Drain outlet is additionally provided with inside the sewage discharge tube of strip, siphon type flusher, sewage discharge tube is connected with drain outlet, drain outlet end
End is connected with ball valve.Drain outlet in the sewage discharge tube and device of strip collectively forms siphon pipe, sewage discharge tube close to screen pack,
Negative pressure is produced at sewage discharge tube, the impurity on filter screen is continuously drawn into blow-off pipe by the suction produced by siphonage in a steady stream
It is interior, realize the convenient cleaning of the impurity on filter screen.
Above-mentioned fore filter although can solve the problem that cleaning jelly the problem of, but it there is also some shortcomings it
Place：Siphon pipe is manually operated and rotated by people, because the manually operated velocity of rotation for causing siphon pipe is limited,
Quick rotation can not be formed, thus while negative pressure can be formed at the sewage discharge tube of siphon pipe, but produced suction is but not
Can be very strong.And because the viscosity of jelly is very strong, if the suction produced is not enough, it is difficult that will be attached on filter core to be still
Jelly is to clearing up.For such case, the method that people most often take is to be used as driving by increasing a motor
Part come drive siphon pipe formation quick rotation, although this mode can effectively solve the problem that above mentioned problem, but can increase user again
Purchase cost, and motor-driven mode can also increase the use cost of user.
The content of the invention
The purpose of the present invention is in view of the above-mentioned problems existing in the prior art, it is proposed that a kind of backwash filter,
The technical problem of solution is how to improve developing result.
The purpose of the present invention can be realized by following technical proposal：
There is water inlet, delivery port and the blowdown that can be opened and closed on a kind of backwash filter, including body, body
Mouthful, tubular filter core is provided with described body, the water inlet of body is connected with delivery port by filter core, described filter core
It is interior to be provided with the cleaning rod with inner chamber, the sewage discharge tube with the intracavity inter-connection of cleaning rod, institute are offered on the sidepiece of cleaning rod
The filter core bottom stated has the decontamination that is connected with sewage draining exit mouthful, and described cleaning rod lower ending opening is simultaneously relative with decontamination mouthful, clearly
Washing the outside of rod has forced section, it is characterised in that impeller is provided with described cleaning rod, and in the lower end of cleaning rod and filter core
The supporting construction that cleaning rod is rotated can be supported when current pass through impeller by having between the bottom wall of inner chamber.
It is same as the prior art during the normal filtration of this backwash filter, all it is control of sewage disposal mouthful closing, then
Water is accessed from water inlet, by flowing ultimately into delivery port after filter element filtering for users to use.When needing filter cartridge flushing, control
Sewage draining exit, which is opened, makes sewage draining exit directly be connected with the decontamination mouthful of filter core bottom, so, water inlet is passed through filter in fact
The decontamination mouthful of the inner chamber of sewage discharge tube, cleaning rod on core, cleaning rod and filter core bottom and connected with sewage draining exit formation, then by
The water of water inlet access will be discharged directly from sewage draining exit.
Due to having supporting construction between the lower end of cleaning rod and the bottom wall of filter core inner chamber, then when water flows out of cleaning rod
Out-of-date, current can be acted on the impeller being arranged in cleaning rod, so that cleaning rod can be by fulcrum of supporting construction certainly
Dynamic formed rotates.The outside tool forced section of cleaning rod, during cleaning rod is rotated, forced section can be by cleaning rod outside and filter
Water agitation between in-core wall.Simultaneously because being provided with the sewage discharge tube with the intracavity inter-connection of cleaning rod on the outside of cleaning rod, clearly
Negative pressure will be produced during rotation at sewage discharge tube by washing rod, that is, is formed and entered cleaning through sewage discharge tube outside cleaning rod
Suction in rod.Under the collective effect of the agitation force produced by suction and forced section, adsorb impurity on filter core inwall and
Jelly is easy for be rinsed from filter core, and is entered in cleaning rod by sewage discharge tube and realized and rinse.
It is fast that this backwash filter enables cleaning rod to be automatically formed in flushing by the cooperation of impeller and supporting construction
The rotation of speed, and the impurity and jelly that be will be attached in rotation process by forced section and sewage discharge tube collective effect on filter core
It can be smoothly drawn into cleaning rod, the developing result of filter core improved well.
In above-mentioned backwash filter, described sewage discharge tube is arranged on the lateral surface of forced section, described soil pick-up
Mouthful quantity be at least two and axial direction arrangement of each sewage discharge tube along cleaning rod, described forced section two adjacent sewage discharge tubes it
Between form blocking section, and the lateral surface of blocking section and the lateral surface of forced section are flush.Forced section two adjacent sewage discharge tubes it
Between form blocking section, and the lateral surface of blocking section and the lateral surface of forced section are flush, and also meaning that the setting of each sewage discharge tube is
It is separate, non-interference, then the very first time will to be respectively formed negative pressure at each sewage discharge tube when cleaning rod is rotated.
Be the equal of to first pass through the straight trough that a whole piece is drawn in cleaning rod sidepiece in background technology, then using rib in straight trough
It is interior by straight trough lattice into for the mode of several sewage discharge tubes, then cleaning rod is that elder generation is formed by the notch of straight trough certainly when rotating
Negative pressure makes impurity and jelly be drawn into straight trough, is then allocated, is also meant that in background technology by each sewage discharge tube again
The negative pressure of fore filter be to be formed at the notch of straight trough, rather than formed at each sewage discharge tube, and a whole piece
Vacuum effect produced by straight trough is clearly weaker, and this is determined by the length of straight trough.So compared to background skill
For art, the negative pressure produced by each sewage discharge tube set-up mode in the application is substantially bigger, therefore is easier impurity
And jelly is inhaled from the inwall of filter core, so as to also just make acquired developing result more preferable.
In above-mentioned backwash filter, the quantity of described forced section is at least two, and one of forced section
On position and each sewage discharge tube remaining forced section on of each sewage discharge tube along cleaning rod axial direction it is mutual along the axial position of cleaning rod
Stagger.
Because filter core is tubular, by the way that the quantity of forced section is set at least two, and in processing by it
In position of each sewage discharge tube along cleaning rod axial direction on a forced section be set to each sewage discharge tube on remaining forced section along clear
Wash mandrel to position mutually stagger, in such event equivalent to making each sewage discharge tube face relative with filter core not phases in rotation
Together, this is also implied that when cleaning rod is rotated by each sewage discharge tube as cleaning rod rotates that the whole inwall of filter core can be entered
Row soil pick-up, soil pick-up area reaches maximum, acquired soil pick-up best results.
There are two inclined planes in above-mentioned backwash filter, on described forced section and by two inclined plane phases
The soil pick-up face of connection, the distance between two inclined planes are gradually reduced along the protrusion direction of forced section, and described sewage discharge tube, which is located at, to be inhaled
In soiled surface, and the lateral surface of blocking section is located on soil pick-up face.
There is the protrusion direction of the distance between two inclined planes extended forward, and two inclined planes along forced section on forced section
It is gradually reduced, the flat for making the thickness of forced section formation forced section be gradually reduced along its protrusion direction, this shape is conducive to
The rotation of cleaning rod.Soil pick-up face is located between two inclined planes, also means that soil pick-up face is located on forced section near in filter core
Wall but do not fitted with the inwall of filter core, on the one hand can so shorten the distance between sewage discharge tube and filter core inwall, make filter core
On impurity and jelly be easier to be drawn into cleaning rod, improve developing result, on the other hand again can prevent in forced section
The phenomenon for being in contact with filter core inwall and causing cleaning rod to be stuck.
In above-mentioned backwash filter, described cleaning rod is made of plastic material, and cleaning rod is with impeller
Integral structure.
It is well known that working of plastics is all one-time formed by mould, therefore cleaning rod is molded using plastic material, can
To be molded according to the structure for the cleaning rod for being fixed with impeller, the cleaning rod so come out by mould molding will come with
Impeller.Die sinking is related to the production cost of enterprise, although also relevant with the purchase cost of user, but enterprise is weight after mould molding
Use again, therefore to be far smaller than configuration driven motor institute increased for the purchase cost on actually increased to unique user
Purchase cost, almost can be ignored.
In above-mentioned backwash filter, described filter core has dowel, at least one end and the decontamination mouthful of dowel
Inwall be fixedly connected with, described impeller includes the blade of supporting table and some circumferential connections along supporting table, described support
Structure includes positioning plush copper raised from dowel, and the positioning plush copper described in backwash is resisted against in supporting table lower end
At the heart.Rotated if directly the lower end of cleaning rod is resisted against on the bottom wall of filter core inner chamber, then be easy for silt occur
Snap onto between cleaning rod lower end and filter core bottom wall of inner cavity and cause the problem of cleaning rod is stuck.
This backwash filter on filter core by setting dowel, at least one end of dowel and the inwall phase of decontamination mouthful
Be connected, on dowel have upward positioning plush copper, backwash when water from sewage discharge tube enter the inner chamber of cleaning rod in and make
With in the supporting table of impeller, supporting table stress and drive cleaning rod to move down and positioning plush copper is resisted against supporting table lower end
Center so that cleaning rod can be rotated using positioning plush copper as the center of circle.The presence for positioning plush copper simultaneously causes cleaning
Certain gap is formed between the bottom of rod and the bottom wall of filter core inner chamber, this structure can prevent silt to be stuck in cleaning rod bottom
Between the bottom wall of filter core inner chamber, smoothness when cleaning rod is rotated is improved, so as to ensure that cleaning rod to a certain extent
Rotate brought developing result.
In above-mentioned backwash filter, the lower surface of described supporting table is the circular conical surface of indent.
The lower surface of supporting table is set to the circular conical surface of indent, then when the lower end that positioning plush copper is resisted against supporting table is come
When rotating cleaning rod, the convex crown would not scoot about in the position of supporting table lower end because of the rotation of cleaning rod,
Cleaning rod is more stably rotated, so can just make each sewage discharge tube stably by impurity during cleaning rod is rotated
And jelly is drawn into cleaning rod to lift effect during backwash.
In above-mentioned backwash filter, as another technical scheme, described filter core has dowel, dowel
At least one end and the inwall of decontamination mouthful be fixedly connected with, described supporting construction includes thimble raised from dowel, described
Thimble sidepiece has convex shoulder, and the thimble described in backwash passes through the centre bore of impeller, and the lower end of impeller is resisted against convex shoulder
Go up and make to form gap between cleaning rod bottom and the bottom wall of inner cavity of filter core.
Due to have on dowel with the connecting hole of the center of impeller just to thimble, then make when sewage draining exit is opened
After cleaning rod is moved down, thimble can pass through the centre bore of impeller, simultaneously because having convex shoulder on thimble, then the lower end of impeller
It will be resisted against on convex shoulder, so that cleaning rod is rotated by the center of circle of thimble, while the presence of convex shoulder causes cleaning rod
Form certain gap between the bottom wall of bottom and filter core inner chamber, this structure can also prevent silt be stuck in cleaning rod bottom with
Between the bottom wall of filter core inner chamber, improved while being rotated automatically to improve developing result by cleaning rod when cleaning rod is rotated
Smoothness.
Be provided with above-mentioned backwash filter, between described cleaning rod and filter core makes cleaning when sewage draining exit is closed
The location structure that rod stops operating.
Although sewage draining exit is closed in normal filtration, cleaning rod in this process may also can be by
The effect of water inlet and produce rotation, this is also to realize a technological difficulties for having to overcome when cleaning rod is rotated automatically.
Therefore this backwash filter sets location structure between cleaning rod and filter core, can be made clearly by location structure
Wash rod to stop operating when sewage draining exit is closed, so as to while realizing that cleaning rod is rotated to improve developing result automatically can again
Realize unnecessary rotation of the cleaning rod in normal filtration.
In above-mentioned backwash filter, ball float that described location structure includes being arranged in cleaning rod, it is arranged at
Butting section on the outside of ball float upper end and the stopper section being arranged on the inside of filter core upper end, when sewage draining exit is closed, cleaning rod is in ball float
Buoyancy float downward and the sidepiece of butting section and the sidepiece of stopper section is leant.
When sewage draining exit is closed, the external and internal pressure of body is in poised state, now cleaning rod only by ball float buoyancy this
One external force effect.So the buoyancy of ball float will drive cleaning rod to float, and make on the butting section and filter core on the outside of cleaning rod
Stopper section on the inside of end leans, so that circumferentially rotating for cleaning rod is prevented by stopper section, to ensure cleaning rod just
Often remained stationary as during filtering.
In above-mentioned backwash filter, described filter core upper surface has on the inside of the baffle plate of annular, baffle plate
With in cross stop tab, described stopper section is the flange bent downwards from stop tab.
Filter core is cylindrical in shape, and is difficult directly to process stopper section in the inwall of filter core in production, therefore first on baffle plate
To set one in annular and inner side to have be in cross stop tab, and one is then processed in stop tab and is bent downwards
Flange can ensure not interfering with the normal water inlet in filter core as stopper section, the stop tab of cross shape.
In above-mentioned backwash filter, as another technical scheme, described location structure includes being fixed on clearly
The magnet washed the iron plate in rod upper end and be arranged in filter core upper end, when sewage draining exit is closed, cleaning rod is inhaled under magneticaction
It is attached on magnet.
When sewage draining exit is closed, the external and internal pressure of body is in poised state, and now cleaning rod is only by the inside of filter core upper end
Magnet to the suction of iron plate.Cleaning rod can float under the magneticaction of magnet, and the upper end of cleaning rod is adsorbed in magnet
On, so that cleaning rod can be remained stationary as in normal filtration.
Compared with prior art, this backwash filter makes cleaning rod in flushing by the cooperation of impeller and supporting construction
Quick rotation is automatically formed, and is drawn into cleaning rod to realize punching by the impurity and jelly on filter core in rotation process
Wash, the agitation force produced in flushing process by forced section and the powerful negative pressure collective effect produced in each sewage discharge tube, therefore
The dirt-absorbing ability formed is stronger, so that developing result more preferably, is rinsed also more thorough.
Brief description of the drawings
Fig. 1 is the schematic diagram of this backwash filter.
Fig. 2 is schematic diagram when this backwash filter embodiment one is backwashed.
Fig. 3 is the schematic diagram of cleaning rod in this backwash filter embodiment one.
Fig. 4 is that another angles of Fig. 3 are schematic diagrames.
Fig. 5 is the schematic diagram of filter core in this backwash filter embodiment one.
Fiting relation figure when Fig. 6 is this backwash filter one normal filtration of embodiment between cleaning rod and baffle plate.
Fig. 7 is the schematic diagram of another angle of filter core in this backwash filter embodiment one.
In figure, 1, body；1a, housing；1a1, sewage draining exit；1b, top cover；1b1, water inlet；1b2, delivery port；2nd, filter core；
2a, apopore；2b, decontamination mouthful；2c, dowel；2d, baffle plate；2d1, stop tab；2d11, stopper section；2e, positioning plush copper；3、
Tubular screen pack；4th, cleaning rod；4a, forced section；4a1, soil pick-up face；4a11, sewage discharge tube；4a12, blocking section；4a2, inclined plane；
4b, butting section；5th, impeller；5a, supporting table；5b, blade；6th, ball float；7th, cover plate；8th, Blowoff ball valve；9th, sealing ring.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
Embodiment one
As depicted in figs. 1 and 2, a kind of backwash filter, including the body being made up of housing 1a and top cover 1b, housing
1a upper end opens and top cover 1b are connected to housing 1a upper ends, and housing 1a inner chamber is to have water inlet 1b1 on sky, top cover 1b and go out
Filter core 2, housing 1a are provided with the intracavity inter-connection of mouth of a river 1b2, water inlet 1b1 and delivery port 1b2 respectively with housing 1a, housing 1a
Lower end there is sewage draining exit 1a1 with housing 1a intracavity inter-connection, and be threaded with sewage draining exit 1a1 Blowoff ball valve 8,
When in use, water inlet 1b1 taps into water pipe, and delivery port 1b2 connected water outlet pipes, blowoff valve connects blow-off pipe.
As shown in Fig. 2 filter core 2 is cylindrical, and it is arranged with outside filter core 2 tubular screen pack 3, the upper end open of filter core 2,
Top cover 1b inner side has a ring-type shoulder block, and ring-type shoulder block is resisted against the upper end of filter core 2, the upper end of ring-type shoulder block and filter core 2 it
Between be provided with sealing ring 9, top cover 1b water inlet 1b1 and the intracavity inter-connection of filter core 2.The sidepiece of filter core 2 has circumferentially provided some
Apopore 2a, housing 1a inner chamber are connected with the inner chamber of filter core 2 by apopore 2a, sewage draining exit 1a1 be located at filter core 2 just under
Side, is provided with sealing ring 9 between the lower end outside of filter core 2 and housing 1a inwall.
As shown in Figure 2, Figure 3 and Figure 4, provided with the cleaning rod 4 that can be rotated relative to filter core 2 in filter core 2, cleaning rod 4 is in
Hollow form, the lower ending opening of cleaning rod 4, and in the outside of cleaning rod 4 with least two forced section 4a protruded in flat,
There are two inclined plane 4a2 and soil pick-up face 4a1 that two inclined plane 4a2 are connected on forced section 4a, two inclined plane 4a2 it
Between protrusion direction of the distance along forced section 4a be gradually reduced, and provided at least along the axial direction of cleaning rod 4 on the 4a1 of soil pick-up face
Two sewage discharge tubes 4a11, each sewage discharge tube 4a11 are in thin strip, forced section 4a shapes between two adjacent sewage discharge tube 4a11
Lateral surface into blocking section 4a12, and blocking section 4a12 lateral surface and forced section 4a is flush, in the present embodiment, blocking section
4a12 lateral surface is located on the 4a1 of soil pick-up face, and each sewage discharge tube 4a11 on one of forced section 4a is along the axial direction of cleaning rod 4
Mutually stagger position of the position with each sewage discharge tube 4a11 on remaining forced section 4a along the axial direction of cleaning rod 4.The bottom wall of the inner chamber of filter core 2
On provide the decontamination that is connected with sewage draining exit 1a1 mouthful 2b.Impeller 5 is fixed with the lower end of cleaning rod 4, and cleaning rod 4 is used
Plastic material is made, and impeller 5 is integral type structure with cleaning rod 4.
As shown in Figure 2 and Figure 7, in addition, in the present embodiment, having between the lower end of cleaning rod 4 and the bottom wall of the inner chamber of filter core 2
There is the supporting construction that can rotate cleaning rod 4.Filter core 2 have be in cross dowel 2c, dowel 2c each end with
Decontamination mouthful 2b inwall is connected, and impeller 5 includes the supporting table 5a and blade 5b of some circumferential connections along supporting table 5a, support
Structure includes raised positioning plush copper 2e from dowel 2c, and in backwash, positioning plush copper 2e is resisted against supporting table 5a lower ends
Center, supporting table 5a lower surface is inner conical surface.When rinsing, moved down by cleaning rod 4 and impeller 5 is resisted against convex
On head 2e, cleaning rod 4 can be made to be rotated to position plush copper 2e as the center of circle, while the presence for positioning plush copper 2e causes cleaning rod
Gap is formed between 4 bottom and the bottom wall of the inner chamber of filter core 2, this structure can prevent silt to be stuck in the bottom of cleaning rod 4 and filter
Between the bottom wall of the inner chamber of core 2, it is ensured that the normal rotation of cleaning rod 4.
As shown in Figure 5 and Figure 6, be provided between cleaning rod 4 and filter core 2 makes cleaning rod 4 stop turning when sewage draining exit 1a1 is closed
Dynamic location structure.Location structure includes the ball float 6 being arranged in cleaning rod 4, the butting section being arranged on the outside of the upper end of cleaning rod 4
The 4b and stopper section 2d11 being arranged on the inside of the upper end of filter core 2.In the present embodiment, the upper end of cleaning rod 4 is connected with cover plate 7,
It is in cross stop tab 2d1, stopper section that the upper surface of filter core 2, which has on the inside of the baffle plate 2d of annular, baffle plate 2d and had,
2d11 is the flange that is bent downwards from stop tab 2d1, ball float 6 driven in the case where being acted on without external force cleaning rod 4 float and make against
The sidepiece of portion 4b sidepiece and stopper section 2d11 leans.
This backwash filter is in normal filtration, and blowoff valve is closed.Upper end and top cover 1b due to filter core 2
Between be can only enter provided with the water in sealing ring 9, therefore top cover 1b water inlet 1b1 in filter core 2.Then water passes through filter core 2
On apopore 2a and the tubular screen pack 3 that is set in outside filter core 2 filtered and entered in housing 1a inner chamber, due to
Sealing ring 9 is provided between the lower end outside of filter core 2 and housing 1a inwall so that the water entered in housing 1a inner chamber is final
It can only flow outwardly to come for users to use from the delivery port 1b2 on top cover 1b.
In normal filter process, because Blowoff ball valve 8 is closed, therefore blow-off pipe and the bottom of filter core 2
Decontamination mouthful 2b is separated, although water can be entered in cleaning rod 4 from the sewage discharge tube 4a11 on cleaning rod 4, but can not be through the bottom of filter core 2
The decontamination in portion mouthful 2b and be flowed into blow-off pipe.This also means that now housing 1a inside and outside differential pressure is in poised state, cleaning
Rod 4 only by this external force of the buoyancy of ball float 6, and cleaning rod 4 is maintained at floating state under the buoyancy of ball float 6,
Under the state, the sidepiece of the sidepiece of the butting section 4b on the outside of the upper end of cleaning rod 4 and the stopper section 2d11 on filter core 2 leans, only
Thus stopper 2d11 forms backstop to circumferentially rotating for cleaning rod 4, cleaning rod 4 is kept not during normal filtration
It is dynamic.
Between when operating it is longer and, it is necessary to open blowoff valve when causing to be attached with more impurity and jelly on filter core 2
Filter core 2 is rinsed, to prevent filter effect to be affected.The detailed process of filter cartridge flushing 2 is such：Open blowdown
Valve, the decontamination mouthful 2b of blow-off pipe and the bottom of filter core 2 is connected, then when water from the sewage discharge tube 4a11 on cleaning rod 4 enters cleaning
Directly it will be discharged to after in rod 4 by the decontamination mouthful 2b of the bottom of filter core 2 in blow-off pipe.Water is entered in cleaning rod 4 and passed through
During impeller 5, current can be impacted on the supporting table 5a of impeller 5, so that impeller 5 is forced downwards and with cleaning rod 4 one
With moving down, thus cleaning rod 4 overcomes the buoyancy of ball float 6 and sinks, the butting section 4b on cleaning rod 4 and stopping on filter core 2
Stopper 2d11 is separated.
Cleaning rod 4 move down and make positioning plush copper 2e upper end be resisted against impeller 5 supporting table 5a lower end center, so
One, when current again by impeller 5 when cleaning rod 4 will be made to form quick rotation to position plush copper 2e as the center of circle.Due to clear
Washing the outside of rod 4 has the forced section 4a protruded in flat, and during cleaning rod 4 is rotated, forced section 4a will can be cleaned
Water between the outside of rod 4 and the inwall of filter core 2 is stirred.It is connected simultaneously because the outside of cleaning rod 4 is provided with the inner chamber of cleaning rod 4
Logical sewage discharge tube 4a11, cleaning rod 4 will produce negative pressure during rotation at each sewage discharge tube 4a11, that is, be formed by clear
Wash the outer suction entered through sewage discharge tube 4a11 in cleaning rod 4 of rod 4.In being total to for the agitation force produced by suction and forced section 4a
Under same-action, adsorb impurity and jelly on the inwall of filter core 2 and be easy for be rinsed from filter core 2, and by inhaling
Dirty mouth 4a11 is entered in cleaning rod 4, and final entered through decontamination mouthful 2b and Blowoff ball valve 8 realizes flushing in blow-off pipe.
After blowdown terminates, again closing Blowoff ball valve 8 separates blow-off pipe and the decontamination mouthful 2b of the bottom of filter core 2, decontamination
No longer produce outside draft at mouthful 2b, cleaning rod 4 floats and makes butting section 4b sidepiece again under the buoyancy of ball float 6
Sidepiece with stopper section 2d11 is again against thus cleaning rod 4 stops rotation.
This backwash filter passes through impeller 5 and the cooperation of the lower surface of the supporting table 5a on positioning plush copper 2e and impeller 5
Cleaning rod 4 is set to automatically form quick rotation in flushing, and by forced section 4a and sewage discharge tube 4a11 in rotation process
Collective effect and will be attached to the impurity on filter core 2 and jelly can be smoothly drawn into cleaning rod 4, improve well
The developing result of filter core 2.Cleaning rod 4 just can rotate completion automatically without operation and rinse in flushing process, therefore with operation more
Plus convenient advantage.And for manually operated drive cleaning rod 4 is rotated, 4 turns of the cleaning rod in this backwash filter
Faster, the dirt-absorbing ability formed is stronger for dynamic speed, rinses more thorough, acquired developing result is also more preferable.
Embodiment two
The structure and principle of the present embodiment be the same as Example one are essentially identical, and difference is：In the present embodiment, position
Structure includes the iron plate being fixed in the upper end of cleaning rod 4 and the magnet being arranged in the upper end of filter core 2, is closed in sewage draining exit 1a1
When cleaning rod 4 adsorbed under magneticaction on magnet.When sewage draining exit 1a1 is closed, the external and internal pressure of body is in poised state,
Now cleaning rod 4 is only by suction of the magnet on the inside of the upper end of filter core 2 to iron plate.The meeting of cleaning rod 4 under the magneticaction of magnet
Float, and the upper end of cleaning rod 4 is adsorbed on magnet, so that cleaning rod 4 can be remained stationary as in normal filtration.
Embodiment three
The structure and principle of the present embodiment be the same as Example one are essentially identical, and difference is：In the present embodiment, support
Structure includes raised thimble from dowel 2c, and thimble sidepiece has convex shoulder, and in backwash, thimble passes through the center of impeller 5
Hole, and the lower end of impeller 5 is resisted against on convex shoulder and makes to form gap between the bottom wall of inner cavity of the bottom of cleaning rod 4 and filter core 2.
Due to have on dowel with the connecting hole of the center of impeller 5 just to thimble, then when sewage draining exit 1a1 is opened
And make after cleaning rod 4 moves down, thimble can pass through connecting hole, simultaneously because having convex shoulder on thimble, then the bottom of impeller 5
It will be resisted against on convex shoulder, so that cleaning rod 4 is rotated by the center of circle of thimble, while the presence of convex shoulder causes cleaning rod 4
Bottom and the inner chamber of filter core 2 bottom wall between form certain gap, this structure can also prevent silt to be stuck in the bottom of cleaning rod 4
Between the bottom wall of portion and the inner chamber of filter core 2, cleaning rod 4 is improved while being rotated automatically to realize auto-flushing by cleaning rod 4
Smoothness during rotation.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (10)
1. there is water inlet (1b1), delivery port (1b2) and energy on a kind of backwash filter, including body (1), body (1)
Be provided with tubular filter core (2) in the sewage draining exit (1a1) enough opened and closed, described body (1), the water inlet (1b1) of body (1) with
Delivery port (1b2) is connected by filter core (2), the cleaning rod (4) with inner chamber is provided with described filter core (2), in cleaning rod
(4) offer the sewage discharge tube (4a11) connected with the inner chamber of cleaning rod (4) on sidepiece, described filter core (2) bottom have with
Decontamination that sewage draining exit (1a1) is connected mouthful (2b), described cleaning rod (4) lower ending opening and with decontamination mouthful (2b) relatively, cleaning
The outside of rod (4) has forced section (4a), it is characterised in that impeller (5) is provided with described cleaning rod (4), and in cleaning rod
(4) cleaning rod (4) progress can be supported when current pass through impeller (5) by having between lower end and the bottom wall of filter core (2) inner chamber
The supporting construction of rotation.
2. backwash filter according to claim 1, it is characterised in that described sewage discharge tube (4a11) is arranged at stress
On the lateral surface in portion (4a), the quantity of described sewage discharge tube (4a11) at least two and each sewage discharge tube (4a11) along cleaning rod
(4) axial direction arrangement, described forced section (4a) forms blocking section (4a12), and resistance between adjacent two sewage discharge tubes (4a11)
The lateral surface of the lateral surface of compartment (4a12) and forced section (4a) is flush.
3. backwash filter according to claim 2, it is characterised in that the quantity of described forced section (4a) is at least
Position and remaining forced section of each sewage discharge tube (4a11) along cleaning rod (4) axial direction on two, and one of forced section (4a)
Mutually stagger position of each sewage discharge tube (4a11) along cleaning rod (4) axial direction on (4a).
4. the backwash filter according to Claims 2 or 3, it is characterised in that have two on described forced section (4a)
The distance between individual inclined plane (4a2) and the soil pick-up face (4a1) that two inclined planes (4a2) are connected, two inclined planes (4a2)
It is gradually reduced along the protrusion direction of forced section (4a), described sewage discharge tube (4a11) is located on soil pick-up face (4a1), and blocking section
The lateral surface of (4a12) is located on soil pick-up face (4a1).
5. backwash filter according to claim 1, it is characterised in that described cleaning rod (4) uses plastic material
It is made, and cleaning rod (4) and impeller (5) they are integral type structure.
6. backwash filter according to claim 1, it is characterised in that described filter core (2) has dowel (2c),
The inwall of at least one end of dowel (2c) and decontamination mouthful (2b) is fixedly connected with, described impeller (5) include supporting table (5a) and
The blade (5b) of some circumferential connections along supporting table (5a), described supporting construction is determined including raised from dowel (2c)
Position plush copper (2e), the positioning plush copper (2e) described in backwash is resisted against the center of supporting table (5a) lower end.
7. backwash filter according to claim 1, it is characterised in that described filter core (2) has dowel (2c),
At least one end of dowel (2c) and the inwall of decontamination mouthful (2b) are fixedly connected with, and described supporting construction is included from dowel (2c)
Raised thimble, described thimble sidepiece has convex shoulder, and the thimble described in backwash passes through the centre bore of impeller (5), and
The lower end of impeller (5) is resisted against on convex shoulder and makes to form gap between the bottom wall of inner cavity of cleaning rod (4) bottom and filter core (2).
8. backwash filter according to claim 1, it is characterised in that between described cleaning rod (4) and filter core (2)
Provided with making the location structure that cleaning rod (4) stops operating when sewage draining exit (1a1) is closed.
9. backwash filter according to claim 8, it is characterised in that described location structure includes being arranged at cleaning
Ball float (6) in rod (4), the butting section (4b) being arranged on the outside of cleaning rod (4) upper end and it is arranged on the inside of filter core (2) upper end
Stopper section (2d11), when sewage draining exit (1a1) is closed cleaning rod (4) ball float (6) buoyancy float downward and make against
The sidepiece of the sidepiece in portion (4b) and stopper section (2d11) leans.
10. backwash filter according to claim 9, it is characterised in that described filter core (2) upper surface has annulus
The baffle plate (2d) of shape, it is in cross stop tab (2d1) to have on the inside of baffle plate (2d), described stopper section (2d11) be from
The flange bent downwards in stop tab (2d1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710360090.9A CN106964183B (en) | 2017-05-20 | 2017-05-20 | Back flush filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710360090.9A CN106964183B (en) | 2017-05-20 | 2017-05-20 | Back flush filter |
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| CN106964183A true CN106964183A (en) | 2017-07-21 |
| CN106964183B CN106964183B (en) | 2022-10-25 |
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| CN201710360090.9A Active CN106964183B (en) | 2017-05-20 | 2017-05-20 | Back flush filter |
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| CN108825560A (en) * | 2018-07-27 | 2018-11-16 | 上海长征泵阀（集团）有限公司 | A kind of energy-saving pump with backwash filter function |
| CN109499138A (en) * | 2018-11-19 | 2019-03-22 | 朱瑶洁 | A kind of filter lamination that reverse direction flow blocking-proof expels |
| CN119499741A (en) * | 2024-11-19 | 2025-02-25 | 佛山市顺德区美的饮水机制造有限公司 | Impeller assembly, pre-filter and water system |
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| CN106964183B (en) | 2022-10-25 |
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