CN105833588B - A kind of back purge system of filter - Google Patents
A kind of back purge system of filter Download PDFInfo
- Publication number
- CN105833588B CN105833588B CN201610373369.6A CN201610373369A CN105833588B CN 105833588 B CN105833588 B CN 105833588B CN 201610373369 A CN201610373369 A CN 201610373369A CN 105833588 B CN105833588 B CN 105833588B
- Authority
- CN
- China
- Prior art keywords
- water inlet
- skeleton
- disk
- cap
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000010926 purge Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 230000002459 sustained effect Effects 0.000 claims abstract description 8
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 43
- 210000000988 bone and bone Anatomy 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 15
- 239000012535 impurity Substances 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 7
- 238000011001 backwashing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000003657 drainage water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The present invention provides a kind of back purge systems of filter, including covering the backwash head that slide up and down skeleton can along it in skeleton upper end, the upper end of skeleton is provided with several water inlets one in sustained height, also there is outwardly extending disk on skeleton, the upper end of backwash head is provided with several water inlets two in sustained height, backwash head lower end has the cap of annular outstanding, cap is covered outside disk and can be contacted with seamless on the outside of disk, cap upper surface is provided with several water inlets three, backwash head lower end is equipped with the snap-gauge of several strips, several card holes for snap-gauge insertion are provided on disk, small strainer is additionally provided at water inlet one.Small strainer is set, can backwash when impurities outside skeleton, prevent impurity pour filtering rear end water route, cause secondary pollution.
Description
Technical field
The invention belongs to filter technology fields, are related to a kind of back purge system of filter.
Background technique
For filter in filtering, impurity little particle is easy the filter opening of blocking filter screen, needs to clean filter screen thus.
Such as the utility model patent CN201420630652.9 that China announces, a kind of backwash fore filter is announced, is wrapped
Backwash valve is included, the backwash valve is equipped with the water inlet port of horizontal direction opening and water outlet port, the backwash valve upper end are opened
Equipped with backwash valve body port, it is close that backwash spool, backwash valve are sequentially arranged at the backwash valve body port
Seal, backwash valve body top cover and backwash knob；The backwash valve lower end is connected with filtration barrel body, peace in the filtration barrel body
Equipped with filter core；The filtration barrel body lower end is connected with blowdown valve body.
The for another example patent application file that China announces, application number: 201510873259.1, a kind of fore filter is announced,
It is followed successively by interconnecting piece, filter house, blowdown valve from top to bottom, active water water inlet is arranged in the side of the interconnecting piece, therewith phase
The corresponding other side was provided with drainage water outlet, be provided at the lower end port of the interconnecting piece filter house interface and under
In end and the concentric filter core interface of filter house interface, the filter house are followed successively by filter house housing, filter core from outside to inside
And scraping and brushing apparatus, scraping and brushing apparatus one end is fixed in filter core interface and entirety is in filter core, and one end cap of filter core is in filter core interface
Outside and while rotating blowdown valve, the unitary rotation of filter core is driven, the opposite wiper fortune of screen surface and scraping and brushing apparatus is formed
It is dynamic, reach the impurity purpose for removing screen surface.
Above-mentioned two patent is all with backwashing function, but all without backwashing dedicated strainer, changing, water route is anti-
When flushing, it is easy to cause secondary pollution there is impurity to pour filtering rear end water route in pipeline.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of backwash dress of filter is proposed
It sets, the impurity back flush in filter screen can be come out, achieve the purpose that clean filter screen.
Object of the invention can be realized by the following technical scheme: a kind of back purge system of filter, filter packet
The cylindrical skeleton for including filter flask and being arranged in filter flask, skeleton periphery are equipped with filter screen, which is characterized in that this backwash dress
It sets including covering the backwash head that slide up and down skeleton can along it in skeleton upper end, if the upper end of skeleton is provided in sustained height
A dry water inlet one, also has outwardly extending disk on skeleton, the upper end of backwash head sustained height be provided with several into
The mouth of a river two, backwash head lower end have the cap of annular outstanding, and cap is covered outside disk and can be contacted with seamless on the outside of disk,
Cap upper surface is provided with several water inlets three, and backwash head lower end is equipped with the snap-gauge of several strips, is provided with several confessions on disk
The card hole of snap-gauge insertion, when skeleton moves down, the water inlet one can be backwashed head closure, and the water inlet two can be by skeleton
It blocks；When skeleton moves up, the water inlet one is connected to water inlet two, and cap with disk is seamless contacts, the water inlet
Small strainer is additionally provided at one.
When filter is in normal filtration state, certain altitude is moved on on backwash head, at this point, water inlet one is backwashed
Head blocks, and water inlet two is blocked by skeleton, and water can only enter from water inlet three and disk does not contact with cap at this time, so
Water can enter in filter flask, then enter in skeleton from filter screen, then flow out from skeleton upper port, complete filtration operation.It crosses
When strainer needs to clean, backwash head is moved down, and makes two face of water inlet one and water inlet, and cap covers outside disk and and disk
Seamless contact, the water can not enter in filter flask from water inlet three, and water enters in skeleton from water inlet one and water inlet two, so
It is entered in filter flask from filter screen afterwards, the impurity in filter screen filter opening returns in filter flask together with reverse flow, then from filter flask
The discharge of bottom blow-down mouth.Snap-gauge is always positioned in card hole, is prevented backwash head from rotating and is led to water inlet one and water inlet two not
Alignment.Small strainer can prevent the impurity in backwash from entering in skeleton from water inlet one.
Further, skeleton upper end is provided with the groove of annular, and sealing ring one is equipped on the upside of groove, is equipped with sealing on the downside of groove
Circle two, backwash head moves up rearward recess and two face of water inlet.Sealing ring one and two mating groove of sealing ring are for blocking water inlet
Mouth two.
Further, the lower section of the water inlet one is cased with the sealing ring three of annular, and sealing ring two is located at water inlet one
Upside.Sealing ring two and sealing ring three are used to block the two sides up and down of water inlet one, prevent water from about one two effluent of water inlet
Into the space between filter flask and filter screen.
Further, water inlet one is identical with two quantity of water inlet, and position is identical.Water inlet one and two quantity of water inlet and
Position all corresponds.
Further, there are four the tools of water inlet one and circumferential uniformly distributed.
Further, sealing ring four is cased on the outside of the disk, sealing ring four can lean with cap inside.Sealing ring
Sealing effect when four increase disks and cap contact.
Further, there is the step of annular on disk, the baffle ring of annular is equipped on the inside of cap, baffle ring is in backwash head
It leans when moving down with step, snap-gauge is located on the inside of baffle ring, and water inlet two is located at baffle ring outside.When disk closely connects with cap
When touching, step is also in close contact with baffle ring, and when preventing backwash, the sewage in filter flask is flowed out from card hole.
Further, it is cased with sealing ring five on the outside of step, leans on the inside of sealing ring five and baffle ring.Sealing ring five increases platform
Sealing effect when rank and baffle ring contact.
Compared with prior art, the back purge system of this filter is easy to operate, only need to be by outer power drive skeleton above and below
It is mobile, the switching of filtering and backwash can be reached.By changing the flow path of water, making water is outside filter screen in filtering
It flows in skeleton, in backwash is flowed to outside filter screen out of skeleton, can effectively make to be attached in filter screen wall and filter opening
Impurity fall off discharge, flushing process is arranged small strainer, can recoil without configuring power, free of demolition or replacement filter screen
When washing impurities outside skeleton, prevents impurity from pouring filtering rear end water route, cause secondary pollution.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the back purge system in backwashing state of this filter.
Fig. 2 is the structural schematic diagram of this filter normal filtration state.
Fig. 3 is the cooperation schematic diagram in backwashing state of skeleton and backwash head.
Fig. 4 is the cooperation schematic diagram at another visual angle in backwashing state of skeleton and backwash head.
Fig. 5 is the cooperation schematic diagram that skeleton and backwash head are in normal filtration state.
Fig. 6 is the structural schematic diagram of backwash head.
Fig. 7 is the structural schematic diagram of skeleton.
1, filter flask in figure；2, skeleton；3, filter screen；4, backwash head；5, water inlet one；6, disk；7, water inlet two；8,
Cap；9, water inlet three；10, snap-gauge；11, card hole；12, groove；13, sealing ring one；14, sealing ring two；15, sealing ring three；
16, sealing ring four；17, step；18, baffle ring；19, sealing ring five；20, small strainer.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1, filter includes filter flask 1 and the cylindrical skeleton 2 that is arranged in filter flask 1,2 periphery of skeleton is set
There is filter screen 3, head is arranged with outside backwash formed punch, head left port is water inlet, and head right output port is water outlet.
As shown in figure 1, figure 2, figure 3, figure 4 and figure 5, the back purge system of this filter includes skeleton 2 and backwash head 4, bone
Frame 2 is slided up and down along backwash head 4, and the upper end of skeleton 2 is provided with several water inlets 1 in sustained height, is also had on skeleton 2
There is outwardly extending disk 6, the upper end of backwash head 4 is provided with several water inlets 27,4 lower end of backwash head in sustained height
Cap 8 with annular outstanding, 8 sets of cap it is outer in disk 6 and can with 6 outside of disk is seamless contact, 8 upper surface of cap is provided with
Several water inlets 39,4 lower end of backwash head are equipped with the snap-gauge 10 of several strips, are provided on disk 6 several for the insertion of snap-gauge 10
Card hole 11, when skeleton 2 moves down, the water inlet 1 can be backwashed it is first 4 block, the water inlet 27 can be by skeleton 2
It blocks；When skeleton 2 moves up, the water inlet 1 is connected to water inlet 27, and cap 8 with disk 6 is seamless contacts.
2 upper end of skeleton is provided with the groove 12 of annular, and sealing ring 1 is equipped on the upside of groove 12, is equipped with sealing on the downside of groove 12
2 14 are enclosed, backwash head 4 moves up rearward recess 12 and 27 face of water inlet.2 14 mating groove 12 of sealing ring 1 and sealing ring
For blocking water inlet 27.
The lower section of water inlet 1 is cased with the sealing ring 3 15 of annular, and sealing ring 2 14 is located at the upside of water inlet 1.It is close
Seal 2 14 and sealing ring 3 15 are used to block the two sides up and down of water inlet 1, prevent water from flowing to from about one 5 two sides of water inlet
In space between filter flask 1 and filter screen 3.
The outside of disk 6 is cased with sealing ring 4 16, sealing ring 4 16 can with lean on the inside of cap 8.Sealing ring 4 16 increases
Sealing effect when disk 6 and cap 8 being added to contact.There is the step 17 of annular, as shown in fig. 6, in 8 inside of cap on disk 6
Baffle ring 18 equipped with annular, baffle ring 18 lean when backwash head 4 is moved down with step 17, and snap-gauge 10 is located in baffle ring 18
Side, water inlet 27 are located at 18 outside of baffle ring.When disk 6 and cap 8 are in close contact, step 17 is also in close contact with baffle ring 18,
When preventing backwash, the sewage in filter flask 1 is flowed out from card hole 11.Sealing ring 5 19, sealing ring 5 19 are cased on the outside of step 17
It leans on the inside of baffle ring 18.Sealing ring 5 19 increases sealing effect when step 17 is contacted with baffle ring 18.
Water inlet 1 is identical with 27 quantity of water inlet, and position is identical.Water inlet 1 and water inlet 27 correspond, this
There are four the tools of water inlet 1 described in embodiment and circumferential uniformly distributed.As shown in fig. 7, being additionally provided with small strainer 20 at water inlet 1.
Small strainer 20 can prevent the impurity in backwash from entering in skeleton 2 from water inlet 1.
Working principle: skeleton 2 is driven by the ball valve of 1 lower end of filter flask, can be moved up and down with respect to backwash head 4.Filter
When in normal filtration state, after skeleton 2 moves down into certain altitude, blocked at this point, water inlet 1 is backwashed first 4, water inlet
27 are blocked by the groove 12 of skeleton 2, and water can only enter from water inlet 39 and disk 6 does not contact with cap 8 at this time, so
Water can enter in filter flask 1, then enter in skeleton 2 from filter screen 3, then flow out from 2 upper port of skeleton, complete filtering and make
Industry.When filter screen 3 needs to clean, skeleton 2 is moved up, and makes 27 face of water inlet 1 and water inlet, and 8 sets of cap outside disk 6
And with disk 6 is seamless contacts, the water can not enter in filter flask 1 from water inlet 39, water from water inlet 1 and water inlet 27 into
Enter into skeleton 2, then entered in filter flask 1 from filter screen 3, the impurity in 3 filter opening of filter screen returns together with reverse flow
It is discharged into filter flask 1, then from 1 bottom blow-down mouth of filter flask.Snap-gauge 10 is always positioned in card hole 11, prevent backwash head 4 rotate and
Water inlet 1 is caused to be misaligned with water inlet 27.
Claims (1)
1. a kind of back purge system of filter, filter includes filter flask and the cylindrical skeleton that is arranged in filter flask, bone
Frame periphery is equipped with filter screen, which is characterized in that this back purge system includes covering to make skeleton can be along gliding thereon in skeleton upper end
The upper end of dynamic backwash head, skeleton is provided with several water inlets one in sustained height, also has outwardly extending circle on skeleton
The upper end of disk, backwash head is provided with several water inlets two in sustained height, and backwash head lower end has the cover of annular outstanding
Cap, cap are covered outside disk and can be contacted with seamless on the outside of disk, and cap upper surface is provided with several water inlets three, under backwash head
End is equipped with the snap-gauge of several strips, and several card holes for snap-gauge insertion, when skeleton moves down, the water inlet are provided on disk
One can be backwashed head closure, and the water inlet two can be blocked by skeleton；When skeleton moves up, the water inlet one and water inlet
Two connections, and cap with disk is seamless contacts, be additionally provided with small strainer at the water inlet one, skeleton upper end is provided with annular recessed
Slot, groove upside are equipped with sealing ring one, sealing ring two are equipped on the downside of groove, and backwash head is moving up rearward recess and water inlet two just
Right, the lower section of the water inlet one is cased with the sealing ring three of annular, and sealing ring two is located at the upside of water inlet one, one He of water inlet
Two quantity of water inlet is identical, and position is identical, and there are four the tools of water inlet one and circumferential uniformly distributed, is cased on the outside of the disk close
Seal four, sealing ring four can lean with cap inside, have the step of annular on disk, the gear of annular is equipped on the inside of cap
Ring, baffle ring lean when backwash head is moved down with step, and snap-gauge is located on the inside of baffle ring, and water inlet two is located at baffle ring outside,
It is cased with sealing ring five on the outside of step, leans on the inside of sealing ring five and baffle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373369.6A CN105833588B (en) | 2016-05-30 | 2016-05-30 | A kind of back purge system of filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373369.6A CN105833588B (en) | 2016-05-30 | 2016-05-30 | A kind of back purge system of filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105833588A CN105833588A (en) | 2016-08-10 |
| CN105833588B true CN105833588B (en) | 2019-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610373369.6A Active CN105833588B (en) | 2016-05-30 | 2016-05-30 | A kind of back purge system of filter |
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| Country | Link |
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| CN (1) | CN105833588B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202016105070U1 (en) * | 2016-09-13 | 2017-12-14 | Hans Sasserath Gmbh & Co Kg | Backwash filter arrangement |
| CN108187396A (en) * | 2018-01-18 | 2018-06-22 | 海宁市倍世环保科技有限公司 | For the draining runner transformational structure of fore filter |
| CN108392879A (en) * | 2018-04-26 | 2018-08-14 | 宁波灏钻科技有限公司 | A kind of multi-functional fore filter and its application method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0517945B1 (en) * | 1990-01-26 | 1995-11-08 | Valentron Ag | Back-wash filter apparatus |
| CN2875557Y (en) * | 2006-03-23 | 2007-03-07 | 中外合资宁波埃美柯铜阀门有限公司 | Back flushing filter |
| JP2012157799A (en) * | 2011-01-31 | 2012-08-23 | Asuka Kogyo Kk | Backwashing strainer |
| CN102824773A (en) * | 2011-06-16 | 2012-12-19 | 海宁市水享净水设备有限公司 | Prefilter |
| CN205627264U (en) * | 2016-05-30 | 2016-10-12 | 海宁市倍世环保科技有限公司 | Filter backwash device |
-
2016
- 2016-05-30 CN CN201610373369.6A patent/CN105833588B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0517945B1 (en) * | 1990-01-26 | 1995-11-08 | Valentron Ag | Back-wash filter apparatus |
| CN2875557Y (en) * | 2006-03-23 | 2007-03-07 | 中外合资宁波埃美柯铜阀门有限公司 | Back flushing filter |
| JP2012157799A (en) * | 2011-01-31 | 2012-08-23 | Asuka Kogyo Kk | Backwashing strainer |
| CN102824773A (en) * | 2011-06-16 | 2012-12-19 | 海宁市水享净水设备有限公司 | Prefilter |
| CN205627264U (en) * | 2016-05-30 | 2016-10-12 | 海宁市倍世环保科技有限公司 | Filter backwash device |
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| Publication number | Publication date |
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| CN105833588A (en) | 2016-08-10 |
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