CN107812406A - Backwash filter device assembly - Google Patents
Backwash filter device assembly Download PDFInfo
- Publication number
- CN107812406A CN107812406A CN201610961882.7A CN201610961882A CN107812406A CN 107812406 A CN107812406 A CN 107812406A CN 201610961882 A CN201610961882 A CN 201610961882A CN 107812406 A CN107812406 A CN 107812406A
- Authority
- CN
- China
- Prior art keywords
- filter
- backwash
- filter element
- section
- water
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 230000033001 locomotion Effects 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims description 40
- 230000000694 effects Effects 0.000 claims description 5
- 239000003651 drinking water Substances 0.000 claims description 4
- 235000020188 drinking water Nutrition 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 15
- 238000007789 sealing Methods 0.000 description 11
- 239000002245 particle Substances 0.000 description 10
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000011001 backwashing Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
- B01D29/52—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 multiple filtering elements, characterised by their mutual disposition in parallel connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
- B01D29/56—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 multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—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 multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- 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
-
- 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
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/58—Power supply means for regenerating the filter
- B01D2201/583—Power supply means for regenerating the filter using the kinetic energy of the fluid circulating in the filtering device
Abstract
The present invention relates to backwash filter, backwash filter, which can be switched to from operating position in backwash position, to be used to backwash, in operating position, water is directed to output section from input unit by filter, in position is backwashed, water from input unit it is opposite it is anti-can be guided to discharge unit upwardly through filter, the backwash filter includes：Housing, strainer cup, filter element, annular protrusion, it is characterised in that the jam pot cover closure for closing discharge unit is fixed at filter element, and it follows the motion of filter element；And filter element is regularly connected with force transmission element, the axial movement of filter element is mechanically produced via force transmission element.
Description
Technical field
It is backwashed in order to backwash the present invention relates to a kind of backwash filter for filtering drinking water or raw water
Filter can be switched to from operating position in backwash position, and in operating position, water is directed from input unit by filter
To output section, in position is backwashed, water from input unit it is opposite it is anti-can be guided to discharge unit upwardly through filter, instead
Flush filter includes：
(a) housing with input unit and output section；
(b) strainer cup with closed discharge unit being arranged at housing；
(c) filter element that can be directed with axial motion between top and the stopper section of bottom, filter element carry upper mistake
Filter section and lower filtering section, filter element be arranged in strainer cup so that formed can be connected with input unit under
Filter the annular chamber of the outside between section and strainer cup；
(d) it is upper filtering section and it is lower filtering section between externally on filter element, for make outside annular chamber with
The annular protrusion of region disconnecting outside upper filtering section, wherein, annular protrusion and the shoulder on the inwall of strainer cup
Portion's collective effect into,
(i) opened in the position on the top of filter element from input unit to the connection of outside annular chamber and in filter element
The connection is blocked in the position of bottom, and
(ii) connection in the region that upper filtering section is surrounded from input unit to outside is blocked in the position on the top of filter element,
And the connection is opened in the position of the bottom of filter element.
Water filter is used for filtering drinking water or raw water.Here, dirt particle is remained hanging from filtering material.Filter material
Material blocks with the time.So, less water or even water can no longer pass through filter.So need periodic cleaning or updated
Filter.In the presence of the filter with the filtering material being replaced completely.In backwash filter, regularly make to flow through filter material
The flow inversion of material.So, the dirt particle in filtering material, which is flowed, takes away and removes backwashing water by discharge unit.
Background technology
The B1 of file EP 1 688 170 of applicant disclose a kind of backwash filter, wherein, set two mistakes
Filter.First filter is arranged for the filter water in operating position, and the second filter is arranged for filtering and is used for instead
The water of flushing.
The A1 of file DE 10 2,009 003 343 of applicant disclose a kind of anti-in strainer cup with being arranged in
The filter assemblies of flush filter.Filter has discharge unit in the lower end of strainer cup, and its profit is closed using ball valve.
If opening ball valve, pressure differential is produced, is hydraulically moved to by the pressure official post filter assemblies in backwash position.Remove
Outside ball valve, the component needs multiple annular chambers, and these annular chambers are only capable of realizing using the big diameter of strainer cup.
The content of the invention
It is an object of the present invention to realize a kind of thinner backwash filter, its can simply and cost-effective manufacture.
According to the present invention, the backwash filter that the target exploitation starts the type is realized, the backwash filter bag
Contain
(e) the jam pot cover closure for being used to close discharge unit is regularly fixed at filter element, and it follows the motion of filter element；
(f) filter element is regularly connected with force transmission element, and filter element is mechanically produced via force transmission element
It is axially moved.
Different from known arrangement, filter element is not hydraulically to move, but is mechanically moved.It is known
Arrangement is first turned on ball valve and hydrodynamic force.The hydraulic coupling causes the motion of filter element.In the present invention, made
Filtering element is moved and opens or close valve herein.Force transmission element, filter element and valve closure body are formed can associated movement
Component.So, if by machinery power be applied on force transmission element, make jam pot cover closure open or closing side axially upwardly
Motion.
The double of the valve of hydraulic operation in the ball valve at discharge unit and need not need not be carried according to the component of the present invention
Weight bottom.Thus, whole component can be more simply constructed, makes it thinner and more can manufacture cost-effective.
Force transmission element can be in particular with that be able to can be incited somebody to action manually by the adjustment handle collective effect of manual operating using handle is adjusted
The power of application is delivered on filter element.But motor is may also set up, it causes the motion of filter element.Adjustment handle can perform
The axial movement being passed on force transmission element.But also it is possible that using rotatable adjustment handle.
The present invention favourable design in be arranged to, force transmission element include non-rotatably be kept, can
The threaded collar of axial movement, threaded collar and the threaded rod collective effect rotatably supported, wherein, threaded rod can not be in axial side
Motion upwards.Threaded rod has external screw thread, and it is joined in the internal thread of threaded collar.If make to move in the axial direction
Threaded rod rotation, then non-rotatable threaded collar is moved in the axial direction.Filter element with jam pot cover closure follows
The axial movement.
It is arranged in the design of the present invention, threaded rod is connected with being arranged in outside housing, rotatable handle
Connect.
In the especially preferred embodiments, the propeller of smaller flow diameter is provided with filter element, is led to
Cross propeller can in position is backwashed by water guiding into so that water with higher flowing velocity and the flowing in operating position
Filter element is flowed through in the opposite direction.The dirt particle that can make to block using the higher flowing velocity is preferably from filter element
Separation.In the case of identical water, propeller is by reducing flow cross section or causing higher flowing velocity by pulse.
Preferably, propeller can rotatably support around guiding bar.By the rotation of propeller, water jet can first be subsequently pointed to
The different angle scope of filter element.
Preferably, guiding bar and propeller are kept immovable in the axial direction.So, only make to carry jam pot cover closure
Filter element motion.Guiding bar forms the guide portion fixed in the axial direction for propeller.Propeller for example can profit
It is fixed on retainer ring in its axial location.
Filter element is preferably by bottom lock, and bottom has the receiving portion for guiding bar.Bottom may be molded
It is screwed into, inserts or is caught in at filter element or from below.Receiving portion can be screwed into or be inserted in the hole in bottom or
Person is molded on bottom.
Preferably, jam pot cover closure is arranged at the bottom of filter element.But also it is possible that jam pot cover closure is via connecing
Piece, flank etc. are fixed at filter element.Jam pot cover closure can be fixedly connected or mould.
It is arranged in another design of the present invention, guiding bar is axially immovably maintained at spiral shell using upper end
In receiving portion in rasp bar.Thus, guiding bar is not only regularly kept in upper end but also in bottom.
Preferably, propeller has die gap, and it produces the jet of narrow long extension.Die gap and rotational symmetry
Nozzle is not both long extending and only attenuated in one direction.Die gap can completely or partially exist from the top down
Extend in the height of filter element.In particular, propeller can have two relative die gaps.So, compensate for by penetrating
Cross force caused by stream.
It is arranged in the particularly preferred design of the present invention, die gap is arranged with misplacing in the axial direction.
Thus, the compensation of cross force is realized in maximum fluidity speed, because each altitude range is always associated with only one nozzle seam
Gap.
It is arranged in the particularly preferred design of the present invention, die gap is pointed in filter element with acute angle
Side.So, propeller is hydraulically driven rotation.
The design of the present invention is the object of dependent claims.Embodiment is elaborated below with reference to accompanying drawing.
Definition
In specification and appended, all concepts all have known to those skilled in the art contain
Justice, it is by technical literature, standard, DIN EN 806-1 and DIN EN 1717, and related webpage and publication in particular,
The publication of dictionary form in particular, for example, www.Wikipedia.de, www.wissen.de or
Www.techniklexikon.net, rival (Wettbewerber), research institution, university and tissue, such as German gas
Body and water professional association or VDI illustrate.In particular, used concept does not have and people in the art
The opposite implication that member learns from above-mentioned publication.
In addition, based on concept following meanings used herein：
Block portion：The device of any type of block fluid stream completely or partially.Typical block portion is ball valve or valve.
Accessory：For installed in pipeline or other being used to block, adjust or influence in the fluid means of material stream or locating
Component.Accessory may be configured to single type or multi-piece type and be arranged in pipeline or locate at a position.Accessory is, for example, (and not
It is absolute)：Coupling arrangement, connecting accessory, it is main blocking accessory, safeguard accessory, throttling accessory, take out position, take out accessory, put
Gas accessory, standing finish, safety fittings and adjustment accessory.
Output section is the hole of discharge side in the housing, and material stream can flow out from the hole.The hole can be connected in particular
At pipeline or at another accessory or freely opened wide towards air.
It is axially component, the direction of such as rotation axis of pipe or the housing of long extension of complete or partial rotational symmetry.
It is axially the main flow direction in component section in the component of no rotational symmetry.
It is the connecting portion for realizing material stream by portion.
Input unit is the hole of inflow side in the housing, and material stream can be flowed into input unit.The hole can be connected in particular
At pipeline or at another accessory or freely opened wide towards air.
Filter is a kind of device, solid is retained from fluid using it.
Housing be for material, component, instrumentation and testing equipment outside limiting unit.Housing can construct single type or
Person is configured to multi-piece type by multiple housing parts being connected and is made up of one or more materials.
Handle is for holding or moving manually to overhanging component.
Radially it is perpendicular to axially direction.
The hollow body that pipe is made up of the section of cylinder.It is typically used as pipeline.
Backwash is to flow component or filtering material and outwards to blow out scouring media in the opposite direction.
Backwash filter is the filter by backwashing cleaning.
Shoulder is the transition part of the section of different-diameter or thickness.
Joint is the edge or transition piece at hole.
Valve is the component for blocking or adjusting fluid flow.
Jam pot cover closure is to be suitable for closing component of the valve by portion.
Brief description of the drawings
Fig. 1 is that the backwash with filter and the after-filter for filter back-flush water is passed through in operating position
The cross section of filter assemblies,
Fig. 2 corresponds to the diagram in Fig. 1 in backwashing position,
Fig. 3 is the cross section that the component in Fig. 1 is passed through along section line C-C,
Fig. 4 is the cross section that the component in Fig. 1 is passed through along section line F-F,
Fig. 5 is the exploded view of the upper part of the component in Fig. 1,
Fig. 6 is the exploded view of the lower part of the component in Fig. 1 with propeller,
Fig. 7 is the independent figure of the filter element for the component in Fig. 1,
Fig. 8 is the exploded view of the whole component shown in Fig. 1,
Fig. 9 shows the perspective of the diminution ring of the effective diameter for purposefully reducing strainer cup at selected region
Figure,
Figure 10 shows the installation site of the diminution ring of Fig. 9 in operating position,
Figure 11 shows the installation site of the diminution ring of Fig. 9 in position is backwashed.
Embodiment
Fig. 1 shows overall with 10 filter assemblies represented.Component 10 is used for filtering drinking water or raw water.Component 10 has
There is the connecting accessory 12 of known structure type.Connecting accessory 12 has input unit 14 and coaxial output section 16, connecting accessory
12 can be assemblied in pipeline (not shown) using output section 16.Output section 16 is connected with centre gangway 22.Input unit 14 and ring
Shape passage 18 is connected, and circular passage 18 is arranged co-axially around centre gangway 22.Centre gangway 22 and circular passage 18 are passed through
In connecting portion 24, housing 20 is connected using connecting portion 24 and the connection part of subordinate.It is understood as, in alternative embodiment, generation
For shown connection part is utilized, flat flange or straight using coaxial input unit and output section for example can also be used in housing 20
Connect and be installed in pipeline.
Housing 20 has with internal thread 28 to downwardly extending external connecting joint 26.The filter made of transparent plastics
Cup 30 is screwed into internal thread 28.It is understood as, strainer cup 30 can also be made up of another material.It is coaxial with external connecting joint 26
Ground, housing 20 form interior connecting joint 32.Thus external connecting joint 26 is connected and with circular passage 34 within the casing 20
It is connected via circular passage 18 with input unit 14.The inner chamber 38 of interior connecting joint 32 and the phase of centre gangway 36 within the casing 20
Connect and be thus connected via centre gangway 22 with output section 16.
The filter element 44 for the substantial cylindrical being made of plastics axially moveably is drawn in a manner of next describing
Lead in strainer cup 30.Filter element 44 has four vertical stays 54.Stay 54 has the cross section of triangle, as
It can find out well in this cross section C-C in figure 3.Annular section 64 is stackedly molded between stay 54.Ring part
Section 64 is closely stacked and forms small gap.It is shaped as, and filter screen 124 is pulled on the filter element 44 of cylinder.This can
Find out in figure 3.Annular section 64 and filter screen 124 with stay 54 remain together the dirt particle in water, and water can be to
Inside flow through gap and filter screen 124.
Filter element 44 has two mistakes with annular section 64 and the distinctive screen portion of difference in the axial direction
Filter section：The larger filtering section 66 of bottom and the less filtering section 68 on top.This can see well in fig 1 and 2
Go out.Upper filtering section 68 forms after-filter.Lower filtering section 66 forms main filter.Between section 66 and 68 is filtered
It is region 70 very close to each other.Annular protrusion 72 is molded with outside in region 70.Annular protrusion 72 has with close
The annular groove in envelope portion 74.Another annular protrusion 42 is set on upper filtering section 68.Annular protrusion 42 has with close
The annular groove in envelope portion 40.In this embodiment, sealing 40 implements into grooved ring.
Sealing 40 is sealed in the annular formed between the stay 54 of filter element 44 and the connecting joint 32 of inside upwards
Chamber 46.Annular chamber 46 can be found out in figure 3.So, water can not pass externally over and flow upwardly into output area at filter element 44
In 38.When filter element 44 is hit using annular protrusion to be leaned against at connecting joint 32, the free end of the inside of connecting joint 32
Portion forms the stopper section of the motion for filter element 44.
Filter element 44 is axially movable.Fig. 1 shows the filter element 44 in the position on top.This is working position
Put.Fig. 2 shows the filter element 44 in the position of bottom.This is backwash position.Strainer cup 30 somewhat expands upwards.
Implement in outside into thinner and internally there is less diameter in the region 48 of bottom.Thus, in the inwall of strainer cup 30
Place forms shoulder 50.In position is backwashed, sealing 74 is abutted under shoulder 50 at the inwall of strainer cup 30.With this
Kind mode, makes annular chamber 46 be divided into annular chamber 58 and lower annular chamber 56.This can find out in fig. 2.In position is backwashed,
Water can not flow into upper annular chamber 58 from lower annular chamber 56.In operating position, sealing 74 is arranged on shoulder 50.That
, annular chamber 46 is continuous.This can find out in Fig. 1.
Bottom 52 is screwed into the bottom of filter element 44.Therefore, it is threaded 60 and sealing.Closed bottom 52
Filtering element 44.When bottom 52 is hit by bottom of a cup portion 84, the bottom 52 that moves downward through of filter element 44 is limited downwards.In
On axis, protuberance 76 is formed on bottom 52, and it is extended downwardly in the axial direction.Protuberance 76 is provided with the receiving portion of same axial direction
80, it is open upwards and accommodates guiding bar 78 wherein.In this embodiment, receiving portion 80 is provided with additional in upper end
Edge, the length of receiving portion is increased by the edge.
Jam pot cover closure 82 is inserted on the bottom of protuberance 76.Before strainer cup 30 is formed downwards under bottom of a cup portion 84
Convex ring 86.Ring 86 is provided with external screw thread 88.Discharge body (Ablaufkoerper) 90 is screwed onto on external screw thread 88.Bottom of a cup portion 84 is set
Have by portion 92.In operating position, filter element 44 figure 1 illustrates top position in.In the position, obturator
82 be enclosed in bottom of a cup portion 84 by portion 92.Ring 85 is reduced to be inserted into strainer cup 30.It is single again in fig.9 to reduce ring 85
Solely show.Ring is reduced using the first loop member 87 directly at the inwall of strainer cup 30 to be located in bottom of a cup portion 84.First ring element
Part 87 is connected with the second loop member 89 via contact pin 91.Thus, the second loop member 89 is maintained at regularly and immovably
In its position.Second loop member 89 is used for the interior diameter for reducing strainer cup 30.In the lower edge of filter element 44, externally
It is provided with the annular seal 93 in annular groove.It is close when in 44 superposed position of filter element in operating position
Envelope portion 93 is located just at reducing in the height of the second ring-type element 89 of ring 85.Thus, dirt particle can not arrive by sealing
Up to directly in the region before bottom of a cup portion.Thus it is moved downwardly to backwash in position without prejudice to filter element 44.
In position is backwashed, in the position of 44 bottom shown in figure 2 of filter element.In the position, valve closure
Body 82 is arranged in under the bottom of a cup portion 84 for passing through portion 92.Sealing 93 is located in the height of contact pin 91, so that carrying
The water of dirt particle can flow through sealing 93.Strainer cup 30 is downwardly discharged body 90 and opened wide.Discharge body 90 has tap
94, water can flow outwardly via the tap 94.
Become unnecessary by the additional ball valve of jam pot cover closure 82 and the dump valve formed by portion 92.Dump valve passed through
The motion of filtering element 44 is opened and closing.
Housing 20 is outwardly formed with the flange 96 by portion 98 in upper end.It can find out well in Figure 5.It is convex
Edge 96 and it is arranged to by portion 98 coaxial with filter element 44 and guiding bar 78.Threaded rod 100 is inserted through portion 98 from inside
In and using sealing 102 and 104 to external seal.Threaded rod 100 is not movable in the axial direction.Threaded rod 100 is convex
Edge 96 has external screw thread 106.External screw thread 106 is screwed into the internal thread 108 of threaded collar 110.Threaded collar 110 can be in axial direction
It is arranged on direction within the cavity formed by flange 96 to motion.
Fig. 4 is along the cross section of the sectional plane F-F in Fig. 1.Guiding bar 78 is arranged on axis.Retainer ring 112
It is joined in the annular groove in guiding bar 78 and is fixed in its axial location.Retainer ring 112 is blocked via recess 114
In threaded rod 100.
Threaded collar 110 is provided with four cannelures 116 in the axial direction in outside, and it is distributed evenly along periphery.This
A little cannelures extend in the whole height of threaded collar 110.Protuberance 118 on the inner side of flange 96 is joined to cannelure
In 116.By this way, threaded collar can move in the axial direction, but be to maintain non-rotatable.By this way, threaded rod
100 rotation causes the axial movement of threaded collar 110.
Threaded rod 100 extends up to outwards through the breach 98 in flange 96.Handle 120 is inserted on flange.Carry
The pin 122 of quadrangle is inserted into by the hole in handle 120 in the upper part of threaded rod 100.It is any other instead of quadrangle
Drivening piece and the connecting portion of any other form fit are also all suitable for.The rotation of handle 120 causes rotation and the spiral shell of threaded rod 100
The axial movement of line ring 110.Threaded rod 100 and the guiding bar 78 being held therein keep immovable in the axial direction, such as
It can find out well in fig. 2.
Stay 54 extends over filter element 44 upwards.Threaded collar 110 is regularly connected with stay 54.Threaded collar 110
Axially movable unit is formed with filter element 44, it especially shows (herein in the case of no filter screen 124) in the figure 7
Go out.Bottom 52 and jam pot cover closure 82 move in the axial direction together with the unit.It can be seen that in fig. 2, in bottom 52
Receiving portion 80 is moved along the guiding bar 78 being fixed at housing in the axial direction.
It is disposed with the inner chamber of lower filtering section 66 overall with 126 propellers represented.Propeller 126 can in Fig. 3 and
Find out well in Fig. 6.Internally office has tubular guide portion 128 to propeller 126, and it prolongs around axis in the axial direction
Stretch.Guiding bar 78 is loosely conducted through guide portion 128.The cylinder ring 130 of coaxial outside is via radial direction contact pin 132 and pipe
The guide portion 128 of shape is connected.In this embodiment, two relative radial direction contact pin 132 are set.It is understood as, may also set up one
Individual or multiple radial direction contact pin 132.Annular chamber 134 is formed between cylinder ring 130 and tubular guide portion 128.Water is in annular chamber
Flowed in 134.
About 90 ° of ground of cylinder ring 130 and the angular misalignment of radial direction contact pin 132 form two relative die gaps 136.In Fig. 6
In can be seen that, die gap 136 extends in about half of the height of propeller 126 in the axial direction.Here, die gap
In one be arranged in the region on top and in die gap be arranged in the region of bottom (not shown).Nozzle stitches
Gap 136 points to the inner side of filter element 44 and filter screen 124 with acute angle.So, from longitudinal nozzle 136 in the case of backwash
The water jet left in hole has the shape of extension long in the axial direction and obliquely hits filter element 44 and filter screen 124
On.The water-driven propeller of die gap 136 is forced through around axis rotary motion.So, water continuously hit filtering element
In the different zones of the inner side of part.Retainer ring 170 fixes propeller to prevent being axially moved.Propeller is retained in its axial location
In.
Cap 140, which is matched somebody with somebody, to be sitting on propeller 126.Cap 140 is configured to so that the upside of die gap 136 is closed.Phase
Instead, the region of the annular chamber 134 within propeller 126 keeps up unlimited.
Next illustrate, how the operating position reclaimed water shown in Fig. 1 flows through accessory.Here, arrow shows flowing side
To.
In the operating position shown in Fig. 1, filter element 44 and jam pot cover closure 82 are in the position on top.Water is from defeated
Enter in portion 14 to reach by circular passage 18 and connecting portion 24 in circular passage 34 within the casing 20.This is shown by arrow 142
Go out.Circular passage 34 is connected with the inner chamber of strainer cup 30.This is shown by arrow 144.Filter element 44, which is matched somebody with somebody, is sitting in filtering
In the inner chamber of device cup 30.Annular chamber 150 is formed between strainer cup 30 and filter element 44.Water is on the direction of arrow 146
Flow into annular chamber 150.Water is flowed into filter element 44 from annular chamber 150.Here, water flows through filter element 44 from outside to inside
Lower filtering section 66.This is shown by arrow 148.Dirt particle externally remains hanging from filtering in lower filtering section 66
At element 44.The water filtered flows upwardly through lower filtering section 66 and upper filtering section 68 in annular chamber 46.This passes through arrow
152 show.Afterwards, water flows to output section 16 by centre gangway 36 and 22 in the directions of the arrow 154.Herein, there is provided water with
For further using.
Filter is mixed into dirt particle over time.Afterwards, it is necessary to backwash filter.Figure 2 illustrates recoil
Wash position.In order to reach backwash position, rotate handle 120 and thus rotate threaded rod 100.As described above that
Sample, threaded collar 110, filter element 44 and jam pot cover closure 82 are moved downward using rotation.By the mechanical movement, open and filtering
Pass through portion 92 in the bottom of a cup portion 84 of device cup 30.Water flows downward out.
In position is backwashed, the region that is sealed in downwards on sealing 74.Water can be no longer flowed into around lower filtering area
In the annular chamber 150 of section 66.Water inwardly flows in the side of arrow 156 upwardly through upper filtering section 68.Cap 140 is partly beaten
Open.By the hole being thusly-formed, water flows into the annular chamber 134 within propeller 126 from the top down.Water passes through spray at this
Mouth gap 136 is forced through lower filtering section 66 and the filter screen 124 of subordinate from inside to outside.Here, the dirt particle quilt of outside attachment
Take away.The loosening of the particle blocked is also achieved by flowing velocity higher caused by propeller 126.By flowing obliquely
Impact, rotates propeller 126.So, it is inswept and backwash whole angular range.Segmentation on two die gaps is kept away
Cross force is exempted from.
Water can not flow upwardly through sealing 74.Correspondingly, all backwashing waters pass downwardly through open now by portion 92
Outflow.Different from known arrangement, filter element is not hydraulically to be moved downwardly to backwash position after opening
In, but mechanically by the maneuvering motion of handle 120 into backwash position.Ball valve or diaphragm is not needed to carry out booster action and arrive
Hydraulic coupling on filter element.Thus, in the case of identical filter area, the component is thinner and with smaller straight
Footpath.Need less component.
Embodiments discussed above is used to illustrate claimed invention in the claims.It is public with together with further feature
The feature opened generally also can individually either with it is other in text or accompanying drawing it is public clearly or impliedly in embodiment
The combinations of features opened uses.Size and size provide merely illustratively.To those skilled in the art, can be from its specialty
Suitable scope is drawn in knowledge, therefore need not be elaborated herein.The disclosure of the specific design scheme of feature is not
Mean that the present invention should be limited in these specific designs.On the contrary, this feature can be by a variety of other for this
Well known design is realized for art personnel.Therefore, the design that can not only be illustrated of the present invention realize and
And it can be realized by the design that all protection domains by appended claims cover.In this way, for example it is possible that
Change connecting accessory and its connection scheme with housing in the case of without departing from inventive idea in many ways.
Concept " on ", " under ", " right side " and " left side " is only for accompanying drawing.It will be appreciated that claimed device can be adopted also
Take other orientations.Concept "comprising" and concept " comprising " are it is meant that can be set other NM components.Concept " substantially ",
" main " and " most " refer to it is all with the attribute to occupy the majority and content, that is than mentioned all other component
Or the more features of attribute of feature, i.e. be more than 50% in the case of two components.
Claims (14)
1. a kind of backwash filter for filtering drinking water or raw water, in order to backwash, the backwash filter can be from
It is switched in operating position in backwash position, in the operating position, water is directed to defeated from input unit by filter
Go out portion, in the backwash position, water anti-can be directed into from the input unit opposite upwardly through the filter
Discharge unit, the backwash filter include：
(a) housing (12,20) with input unit (14) and output section (16)；
(b) it is arranged on the strainer cup (30) with the discharge unit (94) that can be closed at the housing (12,20) place；
(c) filter element (44) that can be directed with axial motion between top and the stopper section of bottom, the filter element
(44) with upper filtering section (68) and lower filtering section (66), the filter element (44) cloth in the strainer cup (30)
Be set to so that formed can be connected with the input unit it is described it is lower filtering section (66) and the strainer cup (30) between
Outside annular chamber (150)；
(d) section (68) is filtered on described lower to filter between section (66) externally on the filter element (44) with described
, annular protrusion for making the region disconnecting outside the annular chamber (150) of the outside and the filtering section (68) on top
(72), wherein, the annular protrusion with the inwall of the strainer cup shoulder collective effect into,
(i) opened in the position on the top of the filter element (44) from the input unit to the annular chamber of the outside
(150) connect and the connection is blocked in the position of the bottom of the filter element, and
(ii) blocked in the position on the top of the filter element (44) from the input unit to outside around the top
The connection in the region of section (68) is filtered, and the connection is opened in the position of the bottom of the filter element (44)；
Characterized in that,
(e) the jam pot cover closure (82) for being used to close the discharge unit (92,94) is regularly fixed on the filter element (44)
Place, it follows the motion of the filter element (44)；
(f) filter element (44) is regularly connected with force transmission element (110), via the force transmission element (110)
The axial movement of the filter element (44) can mechanically be produced.
2. backwash filter according to claim 1, it is characterised in that the force transmission element (110) with can be by hand
Adjustment handle (120) collective effect of manipulation, the power applied manually can be delivered to the filtering element excessively using the adjustment handle
On part (44).
3. backwash filter according to claim 2, it is characterised in that the force transmission element is included not revolvably
Threaded collar (110) being kept, being axially moved, the threaded collar and the threaded rod (100) revolvably supported are made jointly
With, wherein, the threaded rod (100) can not be moved in the axial direction.
4. backwash filter according to claim 3, it is characterised in that the threaded rod (100) is described with being arranged in
Outside housing (20), revolvable handle (120) is connected.
5. backwash filter according to any one of the preceding claims, it is characterised in that in the filter element
(44) propeller (126) of smaller flow diameter is provided with, can be in the backwash position by the propeller
It is middle water guiding is flowed through on the contrary into so that water with higher flowing velocity with the flow direction in the operating position it is described
Filter element (44).
6. backwash filter according to claim 5, it is characterised in that the propeller (126) is revolvably around drawing
Guide rod (78) supports.
7. backwash filter according to claim 6, it is characterised in that the guiding bar (78) and the propeller
(126) by immovable keep in the axial direction.
8. backwash filter according to claim 7, it is characterised in that the filter element (44) utilizes bottom (52)
Closing, and the bottom (52) have the receiving portion (84) for the guiding bar (78).
9. backwash filter according to claim 8, it is characterised in that the jam pot cover closure (82) is arranged on the mistake
Bottom (52) place of filtering element (44).
10. the backwash filter according to any one of claim 6 to 9, it is characterised in that guiding bar (78) profit
With end axially can not be dynamic be maintained in the receiving portion in the threaded rod (100).
11. the backwash filter according to any one of claim 5 to 10, it is characterised in that the propeller (126)
With die gap (136), it produces the jet of narrow long extension.
12. backwash filter according to claim 11, it is characterised in that the propeller (126) has two phases
To die gap (136).
13. backwash filter according to claim 12, it is characterised in that the die gap (136) is in axial side
Dislocation ground arrangement upwards.
14. the backwash filter according to any one of claim 11 to 13, it is characterised in that the die gap
(136) inner side of the filter element (44) is pointed to acute angle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202016105070.7U DE202016105070U1 (en) | 2016-09-13 | 2016-09-13 | Backwash filter arrangement |
| DE202016105070.7 | 2016-09-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107812406A true CN107812406A (en) | 2018-03-20 |
| CN107812406B CN107812406B (en) | 2022-01-28 |
Family
ID=60889736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610961882.7A Active CN107812406B (en) | 2016-09-13 | 2016-10-28 | Backwash filter assembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107812406B (en) |
| DE (1) | DE202016105070U1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202017107783U1 (en) * | 2017-12-20 | 2019-03-25 | Hans Sasserath Gmbh & Co. Kg | Backwash filter arrangement |
| CN110393965A (en) * | 2019-07-03 | 2019-11-01 | 曹开军 | Fore filter with strainer self-cleaning function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518501A (en) * | 1982-09-25 | 1985-05-21 | Firma Boll & Kirch, Filterbau Gmbh | Flush-back filter |
| WO2015083168A1 (en) * | 2013-12-04 | 2015-06-11 | Amiad Water Systems Ltd. | Filtration system and filter assembly associated therewith |
| CN105833588A (en) * | 2016-05-30 | 2016-08-10 | 海宁市倍世环保科技有限公司 | Backwashing device of filter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005000009A1 (en) | 2005-02-08 | 2006-08-17 | Hans Sasserath & Co. Kg | Filter fitting with flow meter |
| DE102009003343B4 (en) | 2009-01-13 | 2013-01-03 | Hans Sasserath & Co. Kg | A filter assembly |
-
2016
- 2016-09-13 DE DE202016105070.7U patent/DE202016105070U1/en active Active
- 2016-10-28 CN CN201610961882.7A patent/CN107812406B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518501A (en) * | 1982-09-25 | 1985-05-21 | Firma Boll & Kirch, Filterbau Gmbh | Flush-back filter |
| WO2015083168A1 (en) * | 2013-12-04 | 2015-06-11 | Amiad Water Systems Ltd. | Filtration system and filter assembly associated therewith |
| CN105833588A (en) * | 2016-05-30 | 2016-08-10 | 海宁市倍世环保科技有限公司 | Backwashing device of filter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202016105070U1 (en) | 2017-12-14 |
| CN107812406B (en) | 2022-01-28 |
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