CN106110728B - Flow direction changes control and backwash fore filter - Google Patents
Flow direction changes control and backwash fore filter Download PDFInfo
- Publication number
- CN106110728B CN106110728B CN201610724786.0A CN201610724786A CN106110728B CN 106110728 B CN106110728 B CN 106110728B CN 201610724786 A CN201610724786 A CN 201610724786A CN 106110728 B CN106110728 B CN 106110728B
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- connecting hole
- filter
- flow direction
- control
- filter element
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- 238000001914 filtration Methods 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- 230000008859 change Effects 0.000 claims abstract description 10
- 238000011001 backwashing Methods 0.000 claims description 24
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 10
- 230000003628 erosive effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 1
- 238000011010 flushing procedure Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000011045 prefiltration Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- -1 silt Inorganic materials 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000243686 Eisenia fetida Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003911 water pollution 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
- B01D29/31—Self-supporting filtering elements
- B01D29/33—Self-supporting filtering 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The present invention provides a kind of flow direction conversion control and backwash fore filter.Flow direction conversion control includes control body and revolving part.Control body is in spherical, the side wall of control body has the first connecting hole, the second connecting hole, the 3rd connecting hole and at least one apopore formed outside the side of the first connecting hole and the first connecting hole of connection and filter element, first connecting hole and the second connecting hole obstruct through control body interior, first connecting hole and the 3rd connecting hole obstruct through control body interior, and the second connecting hole and the 3rd connecting hole connect through control body interior.Revolving part is arranged at the top of control body and is connected with external switch, drives control body to rotate.By setting the single flow direction changed the direction of a stream of water to change control in backwash fore filter, so that backwash fore filter is opposite with the water (flow) direction that filter element is flowed through under flushing state under filtration condition, reach forward filter, the effect of back flush.
Description
Technical field
The present invention relates to the technical field of filtration device structure, and more particularly to a kind of flow direction conversion control and backwash
Fore filter.
Background technology
For a long time, caused iron rust, silt, asbestos fibre, red worm, moss algae etc. in civil running water course of conveying
Secondary pollution can not all solve.With the continuous improvement of living standard, the mankind also have strict hygienic requirements to drinking water,
Modern house water can all install a fore filter, avoid water pollution once again, while also extend tap, hot water
The service life of the drainage facilities such as device, closestool, water purifying direct drink device, booster pump.
Fore filter on current market mainly has stacked fore filter, along stamp fore filter, siphonic
The several types such as fore filter.In use for some time, the impurity such as gravel, iron rust can accumulate adhesion to these fore filters
On filter screen, blocking and the breed bacteria of filter screen are caused, while can also lower filter effect to a certain extent and slow down water outlet
Water velocity.And the impurity of such filter is cleared up in the prior art, typically carried out by dismantling the filter screen of filter
Cleaning, it is troublesome in poeration, it is cumbersome, it is also inconvenient.
The content of the invention
The present invention cleans out to overcome the impurity in existing fore filter on filter element to clear up inconvenient and difficulty
The problem of, there is provided a kind of flow direction conversion control and backwash fore filter.
To achieve these goals, the present invention provides a kind of flow direction conversion being arranged in backwash fore filter
Control, including control body and revolving part.Control body is in spherical, and there is the side wall of control body the first connecting hole, second to connect
Connect hole, the 3rd connecting hole and formed outside the side of the first connecting hole and the first connecting hole of connection and filter element at least
One apopore, the first connecting hole and the second connecting hole obstruct through control body interior, the first connecting hole and the 3rd connecting hole warp
Control body interior obstructs, and the second connecting hole and the 3rd connecting hole connect through control body interior.Revolving part is arranged at control sheet
The top of body is simultaneously connected with external switch, drives control body to rotate.
When backwash fore filter is in filtration condition, the first connecting hole is connected with flowing water water inlet, and second connects
Hole connection filter element is connect, the 3rd connecting hole is connected with delivery port；Flowing water through the first connecting hole and at least one apopore from
The outside flow direction of filter element is internal, and the water after filtering flow to delivery port through the second connecting hole and the 3rd connecting hole.
When backwash fore filter is in backwashing state, revolving part drives control body to rotate so that the second connection
Hole is connected with flowing water import, and the 3rd connecting hole is connected with filter element, and flowing water was reverse flowed to from the inside of filter element
The outside of filtering element, backward erosion filter element.
In one embodiment of the invention, the quantity of apopore is six, is symmetrically arranged at the upper and lower of the first connecting hole
Both sides, the area sum of six apopores are equal to the area of the first connecting hole.
In one embodiment of the invention, it is characterised in that the axis of each apopore is vertical with the axis of the first connecting hole.
In one embodiment of the invention, the first connecting hole and the 3rd connecting hole are coaxially disposed, the axis of the first connecting hole with
The axis perpendicular of second connecting hole.
In one embodiment of the invention, flow direction conversion control also includes positioning bolster, and positioning bolster is arranged at
The bottom of control body.
In one embodiment of the invention, positioning bolster is flexible seal ring.
There is the swivelling chute to match with external switch in one embodiment of the invention, on revolving part.
Another aspect of the present invention also provides a kind of backwash fore filter, including filter body, filter element, above-mentioned
Any one flow direction conversion control, universal joint, change-over switch and blowoff valve.Filter body has flowing water water inlet and gone out
The mouth of a river.Filter element is arranged in filter body.Flow direction conversion control is arranged in filter body, in filtration condition
Current are made to pass through filter element in a reverse direction during with backwashing state.Universal joint is arranged in filter body, is connected
Filtering element and flow direction conversion control.Change-over switch is connected with the revolving part in flow direction conversion control.Blowoff valve with
Filter element is connected, and when backwash fore filter is in filtration condition, blowoff valve is closed, when backwash fore filter
During in backwashing state, blowoff valve is opened.
Another aspect of the present invention also provides a kind of backwash fore filter, including filter body, filter element, above-mentioned
Any one flow direction conversion control, change-over switch and blowoff valve.Filter body has flowing water water inlet and delivery port.Cross
Filtering element is arranged in filter body.Flow direction conversion control is arranged in filter body and is connected with filter element
Connect, current is passed through filter element in a reverse direction in filtration condition and backwashing state.Change-over switch and flow direction
Revolving part in conversion control is connected.Blowoff valve is connected with filter element, when backwash fore filter is in filtering shape
During state, blowoff valve is closed, and when backwash fore filter is in backwashing state, blowoff valve is opened.
In summary, flow direction provided by the invention changes control and backwash fore filter compared with prior art
With advantages below：
The single flow direction changed the direction of a stream of water is set to change control in backwash fore filter so that recoil
It is opposite with the water (flow) direction that filter element is flowed through under flushing state under filtration condition to wash fore filter.The setting rushing
Wash under state, the impurity being trapped in when filtering on filter element outer surface is reversed by current to be washed away, can be real without dismounting
The thorough cleaning of existing filter element.Square impact filtering, recoil cleaning, user can indiscriminately ad. as one wishes switch over according to actual conditions,
It is swift to operate, conveniently, securely and reliably, and home-use house lead in main valve can be replaced, save the installation of the valve of a family one.
In flow direction conversion control, the change of water (flow) direction is then the first connection by being arranged on control body
Hole, the second connecting hole, the 3rd connecting hole and at least one apopore are realized.In filtration condition, due to the first connecting hole
It is to separate between the second connecting hole and the 3rd connecting hole, flowing water flow to the outer of filter element through the first connecting hole and apopore
Portion, flowed out after filtering through the second connecting hole and the 3rd connecting hole, the impurity in flowing water is trapped in the outer surface of filter element.Anti-
State is rushed, after control body is rotated second connecting hole is connected with flowing water water inlet, the 3rd connecting hole and filter element
It is connected, flowing water flows into the inside of filter element, then the outside to filter element through the second connecting hole and the 3rd connecting hole, reversely
Wash away the trapped substance for remaining in filter element outer surface.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly,
And coordinate accompanying drawing, it is described in detail below.
Brief description of the drawings
Fig. 1 show the structural representation of flow direction conversion control provided by the invention.
Fig. 2 show structural representation of the flow direction conversion control under filtration condition shown in Fig. 1.
Fig. 3 show structural representation of the flow direction conversion control under recoil state shown in Fig. 1.
Fig. 4, which is shown in embodiment one, backwashes sectional view of the fore filter under filtration condition.
Fig. 5 show the sectional view for backwashing another angle of fore filter shown in Fig. 4.
Fig. 6, which is shown in embodiment one, backwashes sectional view of the fore filter under backwashing state.
Fig. 7 show the sectional view of backwash another angle of prefilter shown in Fig. 6.
Fig. 8, which is shown in embodiment two, backwashes sectional view of the fore filter under filtration condition.
Fig. 9 show the sectional view for backwashing another angle of fore filter shown in Fig. 8.
Figure 10, which is shown in embodiment two, backwashes sectional view of the fore filter under backwashing state.
Figure 11 show the sectional view of backwash another angle of prefilter shown in Figure 10.
Embodiment
Embodiment one
As shown in Figure 1 to Figure 3, the flow direction conversion control 300 that the present embodiment provides includes control body 1 and revolving part
2.Control body 1 in spherical, the side wall of control body 1 have the first connecting hole 11, the second connecting hole 12, the 3rd connecting hole 13 with
And at least one apopore formed outside the side of the first connecting hole 11 and the first connecting hole 11 of connection and filter element 200
14, the first connecting hole 11 and the second connecting hole 12 pass through through the inner barrier of control body 1, the first connecting hole 11 and the 3rd connecting hole 13
The inner barrier of control body 1, the second connecting hole 12 and the 3rd connecting hole 13 connect through the inside of control body 1.Revolving part 2 is arranged at
The top of control body 1 is simultaneously connected with external switch 400, drives control body 1 to rotate.
Corresponding, as shown in Figures 4 to 7, the present embodiment also provides a kind of recoil with flow direction conversion control 300
Wash fore filter.The backwash fore filter includes filter body 100, filter element 200, flow direction conversion control
300th, universal joint 600, change-over switch 400 and blowoff valve 500.Filter body 100 has flowing water water inlet 101 and delivery port
102.Filter element 200 is arranged in filter body 100.Flow direction conversion control 300 is arranged at filter body 100
It is interior, make current in a reverse direction by filter element 200 in filtration condition and backwashing state.Universal joint 600 is arranged at
In filter body 100, filter element 200 and flow direction conversion control 300 are connected.Change-over switch 400 turns with flow direction
The revolving part 2 changed in control 300 is connected.Blowoff valve 500 is connected with filter element 200, at backwash fore filter
When filtration condition, blowoff valve 500 is closed；When backwash fore filter is in backwashing state, blowoff valve 500 is opened.
Make in detail below with reference to Fig. 1 to Fig. 7 convection bodies direction conversion control and the operation principle for backwashing fore filter
Describe in detail bright.
As shown in Figure 4 and Figure 5, when backwash fore filter is in filtration condition, the first connecting hole 11 enters with flowing water
The mouth of a river 101 is connected, and the second connecting hole 12 connection filter element 200, the 3rd connecting hole 13 is connected with delivery port 102.Flowing water
Outside flow direction through the first connecting hole 11 and at least one apopore 14 from filter element 200 is internal.Impurity in water is trapped
In the outer surface of filter element 200, the water after filtering flow to delivery port 102 through the second connecting hole 12 and the 3rd connecting hole 13.When
Fore filter is backwashed using after a period of time, the impurity of the surface of filter element 200 retention is more and more, or even blocks filtering
The mesh of element so that filtering water outlet reduces.In that case, user can be by rotating change-over switch 400, change-over switch
400 drive control body 1 to rotate by revolving part 2 so that control body 1 is in backwashing state as shown in Figure 3.
In the present embodiment, the first connecting hole 11 and the 3rd connecting hole 13 are coaxially disposed, the axis of the first connecting hole 11 with
The axis perpendicular of second connecting hole 12.The setting causes change-over switch 400 to rotate 90 degree and flow direction can be changed into control
300 switch to backwashing state from filtration condition, or switch to filtration condition from backwashing state.However, the present invention to this not
It is limited in any way.In other embodiments, the axis of the first connecting hole 11, the second connecting hole 12 can be set according to actual conditions
Angle between the axis three of axis and the 3rd connecting hole 13.Revolving part 2, Yu Benshi is driven for more convenient change-over switch 400
Apply in example, there is the swivelling chute 21 to match with external switch 400 on revolving part 2.
As shown in Figure 6 and Figure 7, when backwash fore filter is in backwashing state, the second connecting hole 12 and flowing water
Import 101 is connected, and the 3rd connecting hole 13 is connected with filter element 200, and flowing water is through the second connecting hole 12 and the 3rd connecting hole
13 are reverse flowed to the outside of filter element 200 from the inside of filter element 200, and backward erosion remains in the outer of filter element 200
Trapped substance on surface, the sewage of backwash flow out from blowoff valve 500.
The backwash fore filter that the present embodiment provides, single flow direction need to be only set to change in filter body
Control can make current in a reverse direction by filter element, the reverse cleaning down of filter element be realized, without inciting somebody to action
Cleared up after filtering element dismounting, it is very easy to use and simple to operate.
Further, control body is spherical in shape in flow direction conversion control provided by the invention (is set on control body
After revolving part and buffering keeper, flow direction changes control similar to UFO-like), the setting causes the second connecting hole 12 and the 3rd
Connecting hole 13 is connected by the inside of spheroid, realizes that full-bore is connected, flow is greatly improved.In addition, by filter sheet
The size limitation of body 100 and the requirement for reducing cost, in the present embodiment, the quantity of apopore 14 is six, respectively symmetrically
The both sides up and down of the first connecting hole 11 are arranged on, the area sum of six apopores 14 is equal to the area of the first connecting hole 11.Should
Setting reduces the external diameter of control body 1 as far as possible, considerably reduces the volume of control body 1.However, the present invention is to water outlet
The quantity in hole 14 is not limited in any way.In other embodiments, the quantity of apopore 14 can be other numbers in addition to six.And work as
The quantity of apopore 14 is one and when keeping having same traffic with six apopores 14, and the external diameter need of control body 1 are extremely
Reduce and add 1.5 times, not only considerably increase cost, while the volume of filter body 100 will also increase.Further, it is reduction
The resistance of current, set the axis of each apopore 14 vertical with the axis of the first connecting hole 11.
Because the generally use metal of control body 1 is made and it is spherical, to make it can be accurate in state conversion process
Positioning and reduction abrasion, flow direction is set to change the positioning bolster 3 that control 300 also includes being arranged on the bottom of control body 1.
In the present embodiment, positioning bolster 3 is flexible seals, specially plastic seal ring.However, the present invention this is not made it is any
Limit.
The backwash fore filter that the present embodiment provides sets universal joint 600, i.e. universal type in filter body 100
Backwash fore filter.Universal joint 600 realize it is comprehensive turn to design, can different angle position install, improve biography
Unite through-type fore filter installation limitation, substantially increase backwash fore filter performance, family can be replaced
With house lead in main valve, the installation of the valve of a family one is saved.
Embodiment two
The present embodiment and embodiment one and its change are essentially identical, and difference is：The backwash that the present embodiment provides is preposition
Filter is that through type backwashes fore filter (universal joint is not provided with filter body).The back flush type of the present embodiment
Fore filter include filter body 100 ', filter element 200 ', flow direction conversion control 300 ', change-over switch 400 ' with
And blowoff valve 500 '.Filter body 100 ' has flowing water water inlet 101 ' and delivery port 102 '.Filter element 200 ' is arranged at
In filter body 100 '.Flow direction conversion control 300 ' be arranged in filter body 100 ' and with the phase of filter element 200 '
Connection, makes current in a reverse direction by filter element 200 ' in filtration condition and backwashing state.Change-over switch 400 '
It is connected with the swivelling chute 21 ' in flow direction conversion control 300 '.Blowoff valve 500 ' is connected with filter element 200 ', works as recoil
When washing fore filter and being in filtration condition, blowoff valve 500 ' is closed, when backwashing fore filter and being in backwashing state,
Blowoff valve 500 ' is opened.
Backwash as shown in Figs. 8 to 11, that the backwash fore filter that the present embodiment provides provides with embodiment one
The principle of formula fore filter is identical, is not repeated explanation herein, and both differs only in fluid in the present embodiment
Direction is changed to be directly connected between control 300 ' and filter element 200 '.
In summary, the single flow direction changed the direction of a stream of water is set to change control in backwash fore filter
Part so that backwash fore filter is opposite with the water (flow) direction that filter element is flowed through under flushing state under filtration condition.Should
Set and cause under flushing state, the impurity being trapped in when filtering on filter element outer surface is reversed by current to be washed away, nothing
The thorough cleaning that filter element can be achieved need to be dismantled.Square impact filtering, recoil cleaning, user can follow one's bent according to actual conditions
Ground switches over, swift to operate, conveniently, securely and reliably, and can replace home-use house lead in main valve, saves the peace of the valve of a family one
Dress.
In flow direction conversion control, the change of water (flow) direction is then the first connection by being arranged on control body
Hole, the second connecting hole, the 3rd connecting hole and at least one apopore are realized.In filtration condition, due to the first connecting hole
It is to separate between the second connecting hole and the 3rd connecting hole, flowing water flow to the outer of filter element through the first connecting hole and apopore
Portion, flowed out after filtering through the second connecting hole and the 3rd connecting hole, the impurity in flowing water is trapped in the outer surface of filter element.Anti-
State is rushed, after control body is rotated second connecting hole is connected with flowing water water inlet, the 3rd connecting hole and filter element
It is connected, flowing water flows into the inside of filter element, then the outside to filter element through the second connecting hole and the 3rd connecting hole, reversely
Wash away the trapped substance for remaining in filter element outer surface.
Although the present invention is disclosed above by preferred embodiment, but is not limited to the present invention, this any known skill
Skill person, without departing from the spirit and scope of the present invention, a little change and retouching can be made, therefore protection scope of the present invention is worked as
It is defined depending on claims scope claimed.
Claims (9)
1. a kind of flow direction changes control, it is characterised in that it is arranged in backwash fore filter, including：
Control body, in spherical, the side wall of control body has the first connecting hole, the second connecting hole, the 3rd connecting hole and shape
Into at least one apopore outside the side of the first connecting hole and the first connecting hole of connection and filter element, the first connecting hole
Being obstructed with the second connecting hole through control body interior, the first connecting hole and the 3rd connecting hole obstruct through control body interior, and second
Connecting hole and the 3rd connecting hole connect through control body interior；
Revolving part, it is arranged at the top of the control body and is connected with external switch, drives control body to rotate；
When backwash fore filter is in filtration condition, the first connecting hole is connected with flowing water water inlet, the second connecting hole
Filter element is connected, the 3rd connecting hole is connected with delivery port；Flowing water is through the first connecting hole and at least one apopore from filtering
The outside flow direction of element is internal, and the water after filtering flow to delivery port through the second connecting hole and the 3rd connecting hole；
When fore filter is in backwashing state, revolving part drives control body to rotate so that the second connecting hole enters with flowing water
Mouth is connected, and the 3rd connecting hole is connected with filter element, and flowing water is reverse flowed to the outer of filter element from the inside of filter element
Portion, backward erosion filter element.
2. flow direction according to claim 1 changes control, it is characterised in that the quantity of the apopore is six,
The both sides up and down of the first connecting hole are symmetrically arranged at, the area sum of six apopores is equal to the area of the first connecting hole.
3. flow direction according to claim 1 or 2 changes control, it is characterised in that the axis of each apopore and the
The axis of one connecting hole is vertical.
4. flow direction according to claim 1 changes control, it is characterised in that the first connecting hole and the 3rd connecting hole are same
Axle is set, the axis perpendicular of the axis of the first connecting hole and the second connecting hole.
5. flow direction according to claim 1 changes control, it is characterised in that the flow direction conversion control also wraps
Positioning bolster is included, the positioning bolster is arranged at the bottom of the control body.
6. flow direction according to claim 5 changes control, it is characterised in that the positioning bolster is flexible sealing
Circle.
7. flow direction according to claim 1 changes control, it is characterised in that has on the revolving part and turns with outside
Change the swivelling chute that switch matches.
8. one kind backwash fore filter, it is characterised in that including：
Filter body, there is flowing water water inlet and delivery port；
Filter element, it is arranged in the filter body；
Flow direction conversion control described in any one of claim 1 to 7, is arranged in the filter body, in filtering shape
Current are made to pass through filter element in a reverse direction when state and backwashing state；
Universal joint, it is arranged in the filter body, connects filter element and flow direction conversion control；
Change-over switch, it is connected with the revolving part in flow direction conversion control；
Blowoff valve, it is connected with the filter element, when backwash fore filter is in filtration condition, blowoff valve is closed,
When backwash fore filter is in backwashing state, blowoff valve is opened.
9. one kind backwash fore filter, it is characterised in that including：
Filter body, there is flowing water water inlet and delivery port；
Filter element, it is arranged in the filter body；
Flow direction conversion control described in any one of claim 1 to 7, be arranged in the filter body and with the mistake
Filtering element is connected, and current is passed through filter element in a reverse direction in filtration condition and backwashing state；
Change-over switch, it is connected with the revolving part in flow direction conversion control；
Blowoff valve, it is connected with the filter element, when backwash fore filter is in filtration condition, blowoff valve is closed,
When backwash fore filter is in backwashing state, blowoff valve is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610724786.0A CN106110728B (en) | 2016-08-24 | 2016-08-24 | Flow direction changes control and backwash fore filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610724786.0A CN106110728B (en) | 2016-08-24 | 2016-08-24 | Flow direction changes control and backwash fore filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106110728A CN106110728A (en) | 2016-11-16 |
| CN106110728B true CN106110728B (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610724786.0A Active CN106110728B (en) | 2016-08-24 | 2016-08-24 | Flow direction changes control and backwash fore filter |
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| CN (1) | CN106110728B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107551646A (en) * | 2017-10-19 | 2018-01-09 | 陈英傲 | Anti-leakage type intelligence backwash filter and control method |
| CN107998719A (en) * | 2018-01-17 | 2018-05-08 | 吴伟锋 | The conversion control and fore filter of fore filter |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2611705Y (en) * | 2003-02-28 | 2004-04-14 | 林国彰 | Switch valve of water purifier |
| US7000782B2 (en) * | 2003-12-05 | 2006-02-21 | Dosmatic Usa, Inc. | Backwash flushing filter |
| CN201271534Y (en) * | 2008-09-01 | 2009-07-15 | 李哲远 | Frontend preprocessor |
| TWI405602B (en) * | 2011-01-28 | 2013-08-21 | Arcadia Filter Ltd | Backwash uninterrupted water filter |
| CN102512865B (en) * | 2011-12-20 | 2013-11-20 | 自贡科创液压有限公司 | Backflushing blowdown oil filter able to switch without flow break |
| CN104707383B (en) * | 2015-02-15 | 2016-04-13 | 鲁柏鑫 | Water filter and method of work thereof |
| CN205965194U (en) * | 2016-08-24 | 2017-02-22 | 吴伟锋 | Flow directn conversion controlling part and leading filter of back flush |
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Effective date of registration: 20200927 Address after: 310000 1 / F, building 1, Fangshan 318, YUELIAN village, evolution Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Jiazhi Technology Co., Ltd Address before: 311800, Shaoxing, Zhejiang Province, Zhuji City, East Lake Town, No. 20 South Village Road Patentee before: Wu Weifeng |