CN101254369B - Layer screen filter - Google Patents
Layer screen filter Download PDFInfo
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- CN101254369B CN101254369B CN2007101792135A CN200710179213A CN101254369B CN 101254369 B CN101254369 B CN 101254369B CN 2007101792135 A CN2007101792135 A CN 2007101792135A CN 200710179213 A CN200710179213 A CN 200710179213A CN 101254369 B CN101254369 B CN 101254369B
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- filter
- delivery port
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- screen
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Abstract
The invention discloses a layered screen filter, which belongs to the water-saving irrigation technology field. The invention has the technical proposal that the screen filter comprises an upper cover, a lower cover, a water inlet, a water outlet and a sewage outlet. The invention is characterized in that n components one which are provided with filter screens and n components two are alternatively and coaxially arranged between the upper cover and the lower cover, the filter screens are parallel with the upper cover and the lower cover, the water inlet and the sewage outlet are arranged on the side wall of the components one, and the water outlet is arranged on the side wall of the components two. The layered screen filter has the advantages of large filtering area, high filtering efficiency, simple manufacture, convenient usage, low maintenance cost, and so on.
Description
Technical field
The present invention relates to a kind of layer screen filter, belong to the water-saving irrigation technique field.
Technical background
The irrigation system middle filtrator is important critical component, and it filters impurity in the irrigation water and dirt, makes water quality meet the irrigation system requirement.Require it simple in structure, low price, filter therefore commonly used mainly contains several types such as well strainer, laminated filter, chiltern filter and water sand separator.Wherein well strainer is the most generally use a kind of.
The well strainer work principle of filter: a mesh-like filter core is arranged in the filter, and when addle was passed through filter core, the impurity in the water was trapped within on the screen cloth, and clear water flows in the irrigation conduit of downstream.When the booty on the screen cloth reaches a certain amount of, they are flushed to outside the system by cleaning process.
The filtering surface of general well strainer is the cylinder wall, and under certain cylindrical radius and the height, filter area is not that very big (if radius is r, highly be h, then filter area is S
1And the filter core on the face of cylinder manufactures also more complicated=2 π rh).In addition, if the breakage of fraction net is arranged, whole filter core must all be changed.
In the granular membrane of irrigation system, except the screen pack on the face of cylinder, yet there are no the structure of other types at present.
Summary of the invention
The objective of the invention is to provide that a kind of filter area is big, filter efficiency is high, layer screen filter simple in structure, easy to maintenance.
Comprise loam cake, lower cover, water inlet, delivery port, sewage draining exit in order to reach the technical scheme that purpose of the present invention takes, it is characterized in that, between described loam cake and lower cover, replace the coaxial n of being installed with assembly one and an assembly two that has filter screen, described filter screen is parallel with lower cover with loam cake, described water inlet and sewage draining exit are located on the sidewall of assembly one, described delivery port is located on the sidewall of assembly two, and the water by assembly one water inlet passes the delivery port that upper and lower filter screen enters assembly two.
In the above-mentioned layer screen filter, described assembly one and assembly two are cylindrical, and their external diameter equates, is provided with flange connector at their two ends.
In the above-mentioned layer screen filter, described water inlet and sewage draining exit are between the filter screen of assembly one and assembly two, and described delivery port is between the filter screen of this assembly two and coupled assembly one.
In the above-mentioned layer screen filter, described water inlet and sewage draining exit are located on the sidewall of assembly one at 90 degree that circumferentially stagger.
In the above-mentioned layer screen filter, a water inlet pipe is connected to form the filter water inlet with each water inlet of each assembly one respectively, and an outlet pipe is connected to form the delivery port of filter respectively with the delivery port of each assembly two.
A kind of layer screen filter, it is formed in parallel as above-mentioned layer screen filter by a cover is above.
In the above-mentioned layer screen filter, filter I that two covers are connected in parallel and the delivery port of filter II all lead to total delivery port, on total delivery port and pipeline that filter I delivery port communicates, establish valve I (23), on the pipeline between the delivery port of this valve I (23) and filter I, be provided with a threeway, the delivery port that a bye-pass leads to filter II is told in this threeway, is provided with a valve on this bye-pass; On total delivery port and pipeline that filter II delivery port communicates, establish valve II (25), on the pipeline between the delivery port of this valve II (25) and filter II, be provided with a threeway, the delivery port that a bye-pass leads to filter I is told in this threeway, is provided with a valve on this bye-pass.This circuits can realize that the filter that two covers are connected in parallel supplies water incessantly.
The present invention changes cylindrical filter core in the past into flat screen, by alternately being installed together of filter assemblies one and filter assemblies two, under identical cylinder, a plurality of flat screen can be installed, make filter area increase: if radius is r, highly be h, flat screen quantity is n, and then filter area is S
2=π r
2N; As long as flat screen quantity n＞2h/r, or flat screen separation delta H=h/n＜r/2, promptly the filter screen spacing is less than half of cylindrical radius, or diameter 1/4, its filter area just surpasses cylindrical radius and highly identical general well strainer.And a plurality of filter assemblies one alternately are connected with assembly two, can realize that oneself is assembled, and is easy to use by the quantity of actual irrigation flow system flow by the definite assembly of user oneself.
In addition, the flat screen manufacturing is simpler than cylinder filter core, and is easily manufactured.After handle component is made standard component, can change easily.When the part filter screen is damaged,, do not need to change all screen modules, so maintenance cost is low as long as change associated component.
Description of drawings
Fig. 1 is the cutaway view of the assembly one of this layer screen filter;
Fig. 2 is the vertical view of the assembly one of this layer screen filter;
Fig. 3 is the cutaway view of the assembly two of this layer screen filter;
Fig. 4 is the vertical view of the assembly two of this layer screen filter;
Fig. 5 is the normal filtration state diagram of this layer screen filter;
Fig. 6 is the cleaning state diagram of this layer screen filter;
Pipeline normal filtration state diagram when Fig. 7 is two cover layer screen filters parallel connections;
Fig. 8 is the work of filter I normal filtration, the pipeline condition diagram that filter II washes;
Fig. 9 is the work of filter II normal filtration, the pipeline condition diagram that filter I washes;
Normal filtration state diagram when Figure 10 is two cover layer screen filters parallel connections;
Figure 11 is the work of filter I normal filtration, the state diagram that filter II washes;
Figure 12 is the work of filter II normal filtration, the state diagram that filter I washes.
The specific embodiment
Among Fig. 1: the 1-water inlet, the 2-sewage draining exit, the 3-filter assemblies connects screw hole I, 4-filter screen, 5-filter housings.Water inlet 1 and sewage draining exit 2 are located on the sidewall of assembly one at 90 degree that circumferentially stagger.
Among Fig. 2: the 1-water inlet, the 2-sewage draining exit, the 3-filter assemblies connects screw hole I, 4-filter screen, 5-filter housings.
Among Fig. 3: the 6-delivery port, the 7-filter assemblies connects screw hole II, 4-filter screen, 5-filter housings.
Among Fig. 4: the 6-delivery port, the 7-filter assemblies connects screw hole II, 5-filter housings.
Among Fig. 5: 11-filter water inlet, 12-assembly one, 13-assembly two, the 14-loam cake, the 4-filter screen, the 16-seal washer, 17-filter delivery port, 18-set bolt assembly, it is used for the fixedly connected of adjacent two assemblies or upper and lower covers, 19-lower cover, 2-sewage draining exit.Filter among this embodiment comprises three assemblies one and three assemblies two, and assembly one and assembly two replace coaxial installation, and wherein the assembly one of bottom also has the function of lower cover.It shown in the figure filter normal filtration state.
Among Fig. 6: 11-filter water inlet, 12-assembly one, 13-assembly two, the 14-loam cake, the 4-filter screen, the 16-seal washer, 17-filter delivery port, 18-set bolt assembly, the 19-lower cover, 2---sewage draining exit.This embodiment is flushing state diagram embodiment illustrated in fig. 5.
Among Fig. 7: 21-filter I delivery port, 22,23,25, the 26-valve, the total delivery port of 24-, 27-filter II delivery port.Pipeline normal filtration working state figure when present embodiment is two cover filters parallel connections, at this moment, valve 23,25 is opened, and valve 22,26 is closed.Filter I that two covers are connected in parallel and the delivery port 21 and 27 of filter II all lead to total delivery port 24, on total delivery port 24 and pipeline that filter I delivery port communicates, establish valve I 23, on the pipeline between the delivery port of this valve I 23 and filter I, be provided with a threeway, the delivery port that a bye-pass leads to filter II is told in this threeway, is provided with valve 26 on this bye-pass; On total delivery port and pipeline that filter II delivery port communicates, establish valve II 25, on the pipeline between the delivery port of this valve II 25 and filter II, be provided with a threeway, the delivery port that a bye-pass leads to filter I is told in this threeway, is provided with valve 22 on this bye-pass.This circuits can realize that the filter that two covers are connected in parallel supplies water incessantly.
Among Fig. 8: 21-filter I delivery port, 22,23,25, the 26-valve, the total delivery port of 24-, 27-filter II delivery port.When present embodiment is two cover filters parallel connections, the work of filter I normal filtration, the pipeline condition diagram that filter II washes, at this moment, valve 23,26 is opened, and valve 25,22 is closed.
Among Fig. 9: 21-filter I delivery port, 22,23,25, the 26-valve, the total delivery port of 24-, 27-filter II delivery port.When present embodiment is two cover filters parallel connections, the work of filter II normal filtration, the pipeline condition diagram that filter I washes, at this moment, valve 23,26 is closed, and valve 25,22 is opened.
Among Figure 10: 31-filter water inlet, 32-filter water inlet connecting tube, the last filter water inlet valve of 33-, filter water inlet valve under the 34-, 18-set bolt assembly, 14-loam cake, the upper and lower filter barrier assembly of 37-, the 19-lower cover, 2-sewage draining exit, 12-assembly one, 13-assembly two, 42-filter delivery port connecting tube, the total delivery port of 24-, 22,23,25, the valve of 26-filter outlet.Different open and close are combined to form different duties.At this moment, valve 33,34,23,25 is opened, and valve 22,26 is closed, two cover layer screen filter normal filtration.In actual production, also can adopt the above filter parallel operation of two covers.
Among Figure 11: 31-filter water inlet, 32-filter water inlet connecting tube, the last filter of 33-(or claiming filter I) imported valve, filter under the 34-(or claiming filter II) imported valve, 18-set bolt assembly, 14-loam cake, the upper and lower filter barrier assembly of 37-, the 19-lower cover, 2-sewage draining exit, 12-assembly one, 13-assembly two, 42-filter delivery port connecting tube, the total delivery port of 24-, 22,23,25,26-filter outlet valve.In the present embodiment, valve 33,23,26 is opened, and valve 34,22,25 is closed, the work of filter I normal filtration, and filter II washes.
Among Figure 12: 31-filter water inlet, 32-filter water inlet connecting tube, the last filter inlet valve of 33-, filter inlet valve under the 34-, 18-set bolt assembly, 14-loam cake, the upper and lower filter barrier assembly of 37-, the 19-lower cover, 2-sewage draining exit, 12-assembly one, 13-assembly two, 42-filter delivery port connecting tube, the total delivery port of 24-, 22,23,26,25-filter outlet valve.In the present embodiment, valve 34,22,25 is opened, and valve 33,23,26 is closed, the work of filter II normal filtration, and filter I washes.
Arrow among above-mentioned all figure is represented water (flow) direction.
As seen from the figure, this filter is made up of loam cake, lower cover, water inlet, delivery port, sewage draining exit, a plurality of assembly one (as Fig. 1 and Fig. 2), a plurality of assembly two (as Fig. 3 and Fig. 4) etc.Assembly one and assembly two are cylindrical, and their external diameter equates, is provided with flange connector at their two ends, are convenient to connect and sealing.
Fig. 5, Fig. 6 have described the operation principle of this filter: have water inlet 1 and sewage draining exit 2 on the assembly one of filter, have delivery port 6 on the assembly two of filter.Assembly one and assembly two replace coaxial installation, and water inlet and sewage draining exit are between the filter screen of assembly one and assembly two, and delivery port is between the filter screen of this assembly two and coupled assembly one.By the water of assembly one water inlet 1, only pass its upper and lower flat screen, just can enter the delivery port 6 in the filter assemblies two, thereby reach the purpose of filtration.
Water flows into filter chamber from filter inlet, current pass its upper and lower flat screen, impurity is retained down by its upper and lower flat screen, and the water that passes flat screen is exactly to meet the clear water that irrigation water quality requires, and flows into the irrigation conduit of downstream from filter outlet.
Impurity on flat screen need wash more for a long time.During flushing, the current in the filter chamber are with original opposite, and the dirt that the current handle is stayed on the flat screen rinses out together, goes out system from sewage draining exit.
The backwashing manner of filter has two kinds, first kind is straight flushing type, when the online dirt of each metafiltration more for a long time, open blowoff valve (magnetic valve) by pressure differential or timing controller, dirt is washed away by sewage draining exit, and this kind method can't realize the flushing of edge work limit; Second kind is parallel, and promptly two identical filters are together in parallel, and when a filter need clean, draws the part current by the delivery port of another filter and enters the filter delivery port of correcting one's mistakes, and opens blowoff valve simultaneously, and dirt is washed away by sewage draining exit.Pipeline between two filters connects shown in Fig. 7,8,9.This kind method can realize the flushing of edge work limit.
For second kind of parallel backwashing manner, also can make all-in-one-piece (as Figure 10, Figure 11 and Figure 12) to two filters, two filters separately by upper and lower filter barrier assembly.
Because the quantity of filter assemblies one and assembly two can be decided according to actual needs, can be applicable to the filtration requirement of different flow system.But filter assemblies one and assembly two standardized production make it easy to assembly.And this filter can realize bigger filter area, the filter efficiency height, and easily manufactured, cost is lower, than general well strainer more superiority is arranged.
It should be noted last that, above embodiment is only unrestricted in order to the explanation technical solution of the present invention, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. layer screen filter, comprise loam cake, lower cover, water inlet, delivery port, sewage draining exit, it is characterized in that, between described loam cake and lower cover, replace the coaxial n of being installed with assembly one and an assembly two that has filter screen, described filter screen is parallel with lower cover with loam cake, described water inlet and sewage draining exit are located on the sidewall of assembly one, and described delivery port is located on the sidewall of assembly two, and the water by assembly one water inlet passes the delivery port that upper and lower filter screen enters assembly two.
2. layer screen filter according to claim 1 is characterized in that, described water inlet and sewage draining exit are between the filter screen of assembly one and assembly two, and described delivery port is between the filter screen of this assembly two and coupled another assembly one.
3. layer screen filter according to claim 1 and 2 is characterized in that, described water inlet and sewage draining exit are located on the sidewall of assembly one at 90 degree that circumferentially stagger.
4. a layer screen filter is characterized in that, it is formed in parallel by the above layer screen filter as claimed in claim 1 or 2 of a cover.
5. layer screen filter according to claim 4, it is characterized in that, filter I that two covers are connected in parallel and the delivery port of filter II all lead to total delivery port, on total delivery port and pipeline that filter I delivery port communicates, establish valve I (23), on the pipeline between the delivery port of this valve I (23) and filter I, be provided with a threeway, the delivery port that a bye-pass leads to filter II is told in this threeway, is provided with a valve on this bye-pass; On total delivery port and pipeline that filter II delivery port communicates, establish valve II (25), on the pipeline between the delivery port of this valve II (25) and filter II, be provided with a threeway, the delivery port that a bye-pass leads to filter I is told in this threeway, is provided with a valve on this bye-pass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101792135A CN101254369B (en) | 2007-12-11 | 2007-12-11 | Layer screen filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101792135A CN101254369B (en) | 2007-12-11 | 2007-12-11 | Layer screen filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101254369A CN101254369A (en) | 2008-09-03 |
| CN101254369B true CN101254369B (en) | 2010-09-15 |
Family
ID=39889679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101792135A Expired - Fee Related CN101254369B (en) | 2007-12-11 | 2007-12-11 | Layer screen filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101254369B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100988635B1 (en) * | 2009-10-01 | 2010-10-18 | 주식회사 태명 | Water treatment system |
-
2007
- 2007-12-11 CN CN2007101792135A patent/CN101254369B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101254369A (en) | 2008-09-03 |
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Granted publication date: 20100915 Termination date: 20121211 |