CN204380367U - A kind of micropore metal filter core and filter - Google Patents
A kind of micropore metal filter core and filter Download PDFInfo
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- CN204380367U CN204380367U CN201420856139.1U CN201420856139U CN204380367U CN 204380367 U CN204380367 U CN 204380367U CN 201420856139 U CN201420856139 U CN 201420856139U CN 204380367 U CN204380367 U CN 204380367U
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Abstract
The utility model provides a kind of micropore metal filter core and filter.Described micropore metal filter core comprises inner filter screen and the outer filter of cylindrical structure; Described inner filter screen and described outer filter form by metal dust compacting; The particle diameter of described inner filter screen metal dust used is different from the particle diameter of described outer filter metal dust used, and on described inner filter screen, the aperture of eyelet is different from the aperture of eyelet on described outer filter.Described filter comprises above-mentioned micropore metal filter core.Micropore metal filter core provided by the utility model, has that backwash effect is good, flux is large, intensity advantages of higher, can repetitive cycling utilize.
Description
Technical field
The utility model relates to a kind of filter, specifically a kind of micropore metal filter core and filter.
Background technology
In water treatment procedure, typical filter device filters water.Filter core in filter is the parts of filtration in water treatment procedure.Conventional filter core has PP filter core, active carbon filter core, titanium rod filter core and stainless steel filter core etc.According to the difference of filter core material, the service life of filter core is also different.Along with the prolongation of service time, the impurity in water can block filter core, and active carbon filter core can adsorb saturated.So in general, PP filter core just needs to change for 3 months, and active carbon filter core 6 months needs are changed.Titanium rod filter core and stainless steel filter core all belong to metal material filter core, and the resistance to pressure of metal material filter core is better, therefore when the impurity of filter core outer surface attachment is more, can be rinsed, to extend the service life of filter core by the method for backwash to impurity.But existing metal material filter core poor effect after backwash, the impurity namely in filter core upper part eyelet cannot rinse away, thus makes the regeneration effect of filter core poor.
Utility model content
One of the purpose of this utility model is just to provide a kind of micropore metal filter core, to solve the problem that existing metal material filter-core back-flushing washes poor effect.
Two of the purpose of this utility model is just to provide a kind of filter, and the micropore metal filter core in it can be utilized by repetitive cycling.
One of the purpose of this utility model is achieved in that a kind of micropore metal filter core, comprises inner filter screen and the outer filter of cylindrical structure; Described inner filter screen and described outer filter form by metal dust compacting; The particle diameter of described inner filter screen metal dust used is different from the particle diameter of described outer filter metal dust used, and on described inner filter screen, the aperture of eyelet is different from the aperture of eyelet on described outer filter.
The particle diameter of described inner filter screen metal dust used is greater than the particle diameter of described outer filter metal dust used, and on described inner filter screen, the aperture of eyelet is greater than the aperture of eyelet on described outer filter.
The particle diameter of described inner filter screen metal dust used is less than the particle diameter of described outer filter metal dust used, and on described inner filter screen, the aperture of eyelet is less than the aperture of eyelet on described outer filter.
Described micropore metal filter core also comprises the middle level filter screen between described inner filter screen and described outer filter; Described middle level filter screen is suppressed by metal dust and is formed, and the particle diameter of described inner filter screen, described middle level filter screen and described outer filter three metal dust used sequentially increases gradually or reduces gradually; The aperture of the upper eyelet of described inner filter screen, described middle level filter screen and described outer filter three sequentially increases gradually or reduces gradually.
Two of the purpose of this utility model is achieved in that a kind of filter, comprises micropore metal filter core described above.
Micropore metal filter core in the utility model comprises inner filter screen and outer filter, and the particle diameter of inner filter screen metal dust used is different from the particle diameter of outer filter metal dust used, and on inner filter screen, the aperture of eyelet is also different with the aperture of eyelet on outer filter; In water filtration process, the impurity in water can be attached on outer filter or inner filter screen; When backwash, clear water acts on inner filter screen with certain pressure, in the process circulated from inner filter screen outer layers filter screen, the pressure of clear water and flow velocity increase, the foreign material be attached to like this on outer filter or inner filter screen can be easier to be rinsed, thus make backwash effect better, the service life of filter core can be extended.
The utility model can also by interior, in, outer three metafiltration nets form, and interior, in, the online eyelet of outer three metafiltration presents the change of the gradient type reducing gradually or increase gradually.The filter core of three metafiltration web frames is identical with the filter core of two-layer filter structure, has the advantage that backwash effect is good equally.
In the utility model, the particle diameter of the metal dust that different layers filter screen adopts is different, after being formed by pressing process, conjugation between adjacent two layers filter screen is better, the strength ratio of the filter core of final formation is higher, can increase by more than 50% (see figure 4) with the conventional metals powder filter element phase specific strength of same traffic, even if also be there will not be the phenomenon of separation between adjacent two layers filter screen by mechanical damage, even if so backwash time pressure very large, also can not damage.
Further, micropore metal filter core provided by the utility model, under equal filtering accuracy, the metal filtering core that filter efficiency is more traditional can increase by more than 1 times, and namely the utility model has the large advantage of flux.
Filter in the utility model contains the micropore metal filter core described by the utility model, because micropore metal filter core has the advantages such as backwash effect is good, intensity is high, flux is large, therefore filter also has that long service life, cost are low, efficiency advantages of higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of micropore metal filter core in the utility model embodiment 1.
Fig. 2 is the expansion schematic diagram of Fig. 1.
Fig. 3 is the flow curve figure of the permeability gained testing sample 1 ~ 6 in the utility model embodiment 2.
Fig. 4 is the compressive resistance curve map of sample 1 and sample 2 in the utility model embodiment 2.
Detailed description of the invention
Embodiment 1, a kind of micropore metal filter core.
As depicted in figs. 1 and 2, micropore metal filter core provided by the utility model comprises two-layer filter screen, namely inner filter screen 1 and outer filter 2 is comprised, inner filter screen 1 and all cylindrical structure of outer filter 2, outer filter 2 is coated on inner filter screen 1 outer surface, is closely seamlessly attached to together between the two.Inner filter screen 1 and outer filter 2 form by metal dust compacting; The particle diameter of inner filter screen 1 metal dust used is different from the particle diameter of outer filter 2 metal dust used.When the particle diameter of inner filter screen 1 metal dust used is greater than the particle diameter of outer filter 2 metal dust used, on inner filter screen 1, the aperture of eyelet is greater than the aperture of eyelet on outer filter 2; In such cases, in water filtration process, impurity can be attached on outer filter 2.When the particle diameter of inner filter screen 1 metal dust used is less than the particle diameter of outer filter 2 metal dust used, on inner filter screen 1, the aperture of eyelet is less than the aperture of eyelet on outer filter 2; In such cases, in water filtration process, impurity can be attached on outer filter 2 and/or inner filter screen 1.Generally, the thickness of inner filter screen 1 is greater than the thickness of outer filter 2.The thickness of outer filter 2 can be 0.4 ~ 3mm.Form inner filter screen 1 and outer filter 2 metal dust used can be titanium powder or powder of stainless steel etc.
Micropore metal filter core in the utility model can also be made up of three metafiltration nets, namely middle level filter screen can also be set between above-mentioned inner filter screen 1 and outer filter 2, also outermost layer filter screen can be set outside outer filter 2, or innermost layer filter screen is set in inner filter screen 1.For the micropore metal filter core of three metafiltration web frames, the particle diameter of three metafiltration nets metal dust used is from inside to outside in the change of the gradient type reduced gradually or increase gradually, accordingly, the aperture of the online eyelet of three metafiltration is from inside to outside also in the change of the gradient type reduced gradually or increase gradually.
Conventional metals filter core, mostly manufacture shaping with the metal dust of same specifications and models (powder diameter is substantially identical), bending duct on this kind of metal filtering core tube wall is longer, and aperture, duct is substantially identical from the beginning to the end, after filter core uses, backwash effect is not good, foreign material in Partial cells cannot develop, and regeneration effect is poor.And micropore metal filter core provided by the utility model is relative to conventional metals filter core, the bending duct of same apertures is shortened greatly, and therefore backwash effect is better, can repetitive cycling use; And filer element strength increases, flux increases.
Embodiment 2, a kind of filter.
Filter provided by the utility model, comprises housing, is provided with micropore metal filter core in housing, and the two ends of micropore metal filter core connect with the water inlet on housing and delivery port respectively.Micropore metal filter core comprises at least two-layer filter screen, and on different layers filter screen, the aperture of eyelet is different, and on different layers filter screen, the aperture of eyelet reduces successively from inside to outside or increases successively, distribution gradient.The structure of micropore metal filter core can see embodiment 1.
In order to verify the excellent properties of filter in the utility model, spy makes following contrast test.
Comparative example 1
1), make sample 1 filter, in sample 1, contained metal filtering core is the titanium filter core of traditional simple layer filter screen, and filtering accuracy is 1 μm;
2), make sample 2 filter, in sample 2, contained metal filtering core is the titanium filter core in the utility model with inner filter screen and outer filter, and filtering accuracy is 1 μm;
3), under a nitrogen atmosphere, GB/T5250 method is adopted to carry out permeability test respectively to sample 1 and sample 2, the curve 1 in gained flow curve difference corresponding diagram 3 and curve 2.The compressive resistance of test sample product 1 and sample 2, the curve 1 in curve obtained difference corresponding diagram 4 and curve 2.
Comparative example 2
1), make sample 3 filter, in sample 3, contained metal filtering core is the titanium filter core of traditional simple layer filter screen, and filtering accuracy is 3 μm;
2), make sample 4 filter, in sample 4, contained metal filtering core is the titanium filter core in the utility model with inner filter screen and outer filter, and filtering accuracy is 3 μm;
3), under a nitrogen atmosphere, GB/T5250 method is adopted to carry out permeability test respectively to sample 3 and sample 4, the curve 3 in gained flow curve difference corresponding diagram 3 and curve 4.
Comparative example 3
1), make sample 5 filter, in sample 5, contained metal filtering core is the titanium filter core of traditional simple layer filter screen, and filtering accuracy is 5 μm;
2), make sample 6 filter, in sample 6, contained metal filtering core is the titanium filter core in the utility model with inner filter screen and outer filter, and filtering accuracy is 5 μm;
3), under a nitrogen atmosphere, GB/T5250 method is adopted to carry out permeability test respectively to sample 5 and sample 6, the curve 5 in gained flow curve difference corresponding diagram 3 and curve 6.
By above-mentioned 3 comparative examples, each curve in composition graphs 3 and Fig. 4 can be found out, when identical filtering accuracy and same pressure drop, the filter with double-layer leaching net is more much bigger than the flow (or claiming flux) of the filter with individual layer filter screen; When identical filtering accuracy and same traffic, the filter with double-layer leaching net is more much bigger than the intensity of the filter with individual layer filter screen.
Claims (5)
1. a micropore metal filter core, is characterized in that, comprises inner filter screen and the outer filter of cylindrical structure; Described inner filter screen and described outer filter form by metal dust compacting; The particle diameter of described inner filter screen metal dust used is different from the particle diameter of described outer filter metal dust used, and on described inner filter screen, the aperture of eyelet is different from the aperture of eyelet on described outer filter.
2. micropore metal filter core according to claim 1, it is characterized in that, the particle diameter of described inner filter screen metal dust used is greater than the particle diameter of described outer filter metal dust used, and on described inner filter screen, the aperture of eyelet is greater than the aperture of eyelet on described outer filter.
3. micropore metal filter core according to claim 1, it is characterized in that, the particle diameter of described inner filter screen metal dust used is less than the particle diameter of described outer filter metal dust used, and on described inner filter screen, the aperture of eyelet is less than the aperture of eyelet on described outer filter.
4. micropore metal filter core according to claim 1, is characterized in that, described micropore metal filter core also comprises the middle level filter screen between described inner filter screen and described outer filter; Described middle level filter screen is suppressed by metal dust and is formed, and the particle diameter of described inner filter screen, described middle level filter screen and described outer filter three metal dust used sequentially increases gradually or reduces gradually; The aperture of the upper eyelet of described inner filter screen, described middle level filter screen and described outer filter three sequentially increases gradually or reduces gradually.
5. a filter, is characterized in that, comprises the micropore metal filter core described in any one of claim 1 ~ 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420856139.1U CN204380367U (en) | 2014-12-30 | 2014-12-30 | A kind of micropore metal filter core and filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420856139.1U CN204380367U (en) | 2014-12-30 | 2014-12-30 | A kind of micropore metal filter core and filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204380367U true CN204380367U (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420856139.1U Active CN204380367U (en) | 2014-12-30 | 2014-12-30 | A kind of micropore metal filter core and filter |
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| Country | Link |
|---|---|
| CN (1) | CN204380367U (en) |
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- 2014-12-30 CN CN201420856139.1U patent/CN204380367U/en active Active
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