CN203108445U - Foldable polyvinylidene fluoride membrane filter core - Google Patents
Foldable polyvinylidene fluoride membrane filter core Download PDFInfo
- Publication number
- CN203108445U CN203108445U CN 201220676811 CN201220676811U CN203108445U CN 203108445 U CN203108445 U CN 203108445U CN 201220676811 CN201220676811 CN 201220676811 CN 201220676811 U CN201220676811 U CN 201220676811U CN 203108445 U CN203108445 U CN 203108445U
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- Prior art keywords
- support tube
- filter core
- end cover
- pvdf membrane
- membrane filter
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Abstract
The utility model relates to a foldable polyvinylidene fluoride membrane filter core. The foldable polyvinylidene fluoride membrane filter core consists of a filter medium layer, an inner supporting drum and an outer supporting drum, wherein the filter medium layer is formed by a polyvinylidene fluoride membrane and two protecting layers, the two protecting layers are respectively arranged on two sides of the polyvinylidene fluoride membrane, every two adjacent fins are in welding connection with each other, the upper ends of the inner supporting drum and the outer supporting drum are provided with an upper end cover in a sealing way, the lower ends of the inner supporting drum and the outer supporting drum are provided with a lower end cover in a closing way, the upper end cover is provided with a ring-shaped positioning fin, and the lower side of the lower end cover is provided with an interface pipe fitting. The foldable filter core is provided with a layer of polyvinylidene fluoride membrane, and the filter membrane can be protected by utilizing long-fiber nonwoven fabrics on two sides, so that the pollutant storage quantity of the filter core can be increased, the filtering precision and efficiency of the filter core can be guaranteed, the service life of the filter core can be greatly prolonged, and the stability of the product quality of the filter liquid can be guaranteed.
Description
Technical field:
The utility model relates to the fluid purification technology, relates in particular to liquid except particulate, clarifier, particularly a kind of collapsible PVDF membrane filter core.
Background technology:
Filters are used in removing in micro particle filtering and the application of other liquid purifyings of the liquid of industries such as pharmacy fermentation, bioengineering, food and drink, modern chemical industry, electron trade, environmental protection in a large number.Early stage filter is the plate and frame device, adopts geotextiles as filter medium, the energy consumption height, and the occupied ground area is big, and filtering accuracy is poor, and filter efficiency is low, and service life is short, and labour intensity is big.Bag filter has appearred later on, bag filter still adopts geotextiles as filter medium, though overcome plate frame filter energy consumption height, the occupied ground area reaches problems such as labour intensity height greatly, but still exists filtering accuracy poor, filter efficiency is low, the problem that service life is short.In the prior art; in filter, extensively adopt folding type filter element; folding type filter element adopts three-decker; middle one deck is polypropylene thermal spray fiber membrane; upstream and downstream each use layer of non-woven fabric as protective layer, and filtered fluid quality instability, filter efficiency can't guarantee, filter core short problem in service life but exist.
Summary of the invention:
The purpose of this utility model is to provide a kind of collapsible PVDF membrane filter core, and filtered fluid quality instability, the filter efficiency that described this collapsible PVDF membrane filter core will solve folding type filter element existence in the prior art can't guarantee, filter core short technical problem in service life.
This collapsible PVDF membrane filter core of the present utility model; by filtering medium layer; interior support tube and outer support tube constitute; described filtering medium layer is folded into the fin back wall of two above numbers on the excircle of interior support tube; support tube was axial in the fold line of filtering medium layer was parallel to; described outer support tube is set in the cylinder outside that filtering medium layer constitutes; wherein; described filtering medium layer is by one deck PVDF membrane and two protective layers are superimposed constitutes; described protective layer is separately positioned on the both sides of PVDF membrane; two adjacent described fins all are welded to connect arbitrarily; the sealing of the upper end of support tube and outer support tube is provided with a upper end cover in described; the lower end sealing of interior support tube and outer support tube is provided with a bottom end cover; described upper end cover is provided with an annular location fin, and the downside of described bottom end cover is provided with an interface pipe fitting.
Further, the excircle of described interface pipe fitting is provided with the O RunddichtringO.
Further, any one described protective layer constitutes by nonwoven fabric of long fibers.
Further, described interface pipe fitting excircle is provided with a projecting block.
Further, the upper end of described interior support tube and outer support tube and the welding of described upper end cover.
Further, the lower end of described interior support tube and outer support tube and the welding of described bottom end cover.
Operation principle of the present utility model is: the both sides of PVDF membrane utilize nonwoven fabric of long fibers protection filter membrane; increased the pollutant holding capability of filter core; guarantee filtering accuracy and the efficient of filter core, thereby prolonged the service life of filter core greatly, and guaranteed the stable of filter liquide product quality.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model is provided with one deck PVDF membrane in folding type filter element; and utilize nonwoven fabric of long fibers protection filter membrane in both sides; increased the pollutant holding capability of filter core; filtering accuracy and the efficient of filter core have been guaranteed; thereby prolonged the service life of filter core greatly, and guaranteed the stable of filter liquide product quality.
Description of drawings:
Fig. 1 is the structural representation of collapsible PVDF membrane filter core of the present utility model.
The specific embodiment:
Embodiment 1:
As shown in Figure 1; collapsible PVDF membrane filter core of the present utility model; by filtering medium layer; interior support tube 6 and outer support tube 7 constitute; described filtering medium layer is folded into the fin back wall of two above numbers on the excircle of interior support tube 6; support tube was axial in the fold line of filtering medium layer was parallel to; described outer support tube 7 is set in the cylinder outside that filtering medium layer constitutes; wherein; described filtering medium layer is by one deck PVDF membrane 4 and protective layer 5; protective layer 3 superimposed formations; described protective layer 5 and protective layer 3 are separately positioned on inboard and the outside of PVDF membrane 4; two adjacent described fins all are welded to connect arbitrarily; the upper end of support tube 6 and outer support tube 7 is provided with a upper end cover 2 hermetically in described; the lower end of interior support tube and outer support tube is provided with a bottom end cover 8 hermetically; described upper end cover 2 is provided with an annular location fin 1; diametric(al) along annular location fin 1 offers a groove, and the downside of described bottom end cover 8 is provided with an interface pipe fitting 9.
Further, the excircle of described interface pipe fitting 9 is provided with the O RunddichtringO.
Further, any one described protective layer 5 and protective layer 3 constitute by nonwoven fabric of long fibers.
Further, the excircle of described interface pipe fitting 9 is provided with a projecting block.
Claims (6)
1. collapsible PVDF membrane filter core; by filtering medium layer; interior support tube and outer support tube constitute; described filtering medium layer is folded into the fin back wall of two above numbers on the excircle of interior support tube; support tube was axial in the fold line of filtering medium layer was parallel to; described outer support tube is set in the cylinder outside that filtering medium layer constitutes; it is characterized in that: described filtering medium layer is by one deck PVDF membrane and two protective layers are superimposed constitutes; described protective layer is separately positioned on the both sides of PVDF membrane; two adjacent described fins all are welded to connect arbitrarily; the sealing of the upper end of support tube and outer support tube is provided with a upper end cover in described; the lower end sealing of interior support tube and outer support tube is provided with a bottom end cover; described upper end cover is provided with an annular location fin, and the downside of described bottom end cover is provided with an interface pipe fitting.
2. collapsible PVDF membrane filter core as claimed in claim 1, it is characterized in that: the excircle of described interface pipe fitting is provided with the O RunddichtringO.
3. collapsible PVDF membrane filter core as claimed in claim 1, it is characterized in that: any one described protective layer constitutes by nonwoven fabric of long fibers.
4. collapsible PVDF membrane filter core as claimed in claim 1, it is characterized in that: the excircle of described interface pipe fitting is provided with a projecting block.
5. collapsible PVDF membrane filter core as claimed in claim 1 is characterized in that: the upper end of support tube and outer support tube and described upper end cover welding in described.
6. collapsible PVDF membrane filter core as claimed in claim 1 is characterized in that: the lower end of support tube and outer support tube and described bottom end cover welding in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220676811 CN203108445U (en) | 2012-12-10 | 2012-12-10 | Foldable polyvinylidene fluoride membrane filter core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220676811 CN203108445U (en) | 2012-12-10 | 2012-12-10 | Foldable polyvinylidene fluoride membrane filter core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203108445U true CN203108445U (en) | 2013-08-07 |
Family
ID=48888824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220676811 Expired - Fee Related CN203108445U (en) | 2012-12-10 | 2012-12-10 | Foldable polyvinylidene fluoride membrane filter core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203108445U (en) |
-
2012
- 2012-12-10 CN CN 201220676811 patent/CN203108445U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20211210 |