CN200980988Y - Disposable large-volume positive pressure aseptic filter - Google Patents
Disposable large-volume positive pressure aseptic filter Download PDFInfo
- Publication number
- CN200980988Y CN200980988Y CN 200520027434 CN200520027434U CN200980988Y CN 200980988 Y CN200980988 Y CN 200980988Y CN 200520027434 CN200520027434 CN 200520027434 CN 200520027434 U CN200520027434 U CN 200520027434U CN 200980988 Y CN200980988 Y CN 200980988Y
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- CN
- China
- Prior art keywords
- barrel
- cylindrical shell
- filter
- membranous layer
- filter layer
- 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.)
- Expired - Fee Related
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a one-time high capacity positive pressure bacterial filter, comprising a filter layer arranged in the barrel, a fluid inlet and a pressurizing air supply opening that are arranged on the upper portion of the barrel, a screw-type cork arranged on the fluid inlet, and a fluid outlet arranged on the lower portion of the barrel, wherein the filter layer comprises facing bars with screen holes respectively arranged on the upper surface and the lower surface of the microporous filtering film, a plurality of screen holes are distributed on each facing bar with screen holes, and the diameter of the screen holes is 20-45cm, the filter layer and the barrel are an unified structure and the barrel is divided by the filter layer into the upper portion of the barrel and the lower portion of the barrel, the barrel is made of transparent high-density polyethylene and scales are marked on the wall of the barrel, the pressurizing air supply opening is connected with one end of a duct and the other end of the duct is provided with a manual pressurization valve comprising an air release valve arranged on a pressurization glueball. The pressurization device of the utility model is simple in structure, convenient in operation and applicable to continuous filtration for bulk fluid sample, with a one-time filter capacity of 2000 ml, further, the employment of the one-time injection molding with polyethylene achieves high cost performance and convenient expansion use.
Description
Technical field
The utility model relates to a kind of membrane separation device at biology, chemical analysis, pharmaceutical field, and specifically a kind of disposable high-capacity positive is pressed sterile filters.
Background technology
Traditional filter has two types of drawing-in type (suction filtration formula) and adding pressure types.Suction filtration formula filter links to each other with bottle,suction, vavuum pump is bled, form negative pressure with filter liquide, because suction filtration causes the negative pressure suction, to prevent from when manipulating to flow backwards and cause pollution, and easily cause tearing to damage, can change microporous barrier ground performance filter membrane, influence it and filter the ground result, its efficient of aunt is not as adding pressure type suction filtration filter.Adding pressure type suction filtration ground container is a closed, mostly is metal material structures such as stainless steel, behind the adding ground to be filtered liquid, by gas (N commonly used
2, C
2, or CO
2) pressure that forms filters liquid, effect is better, but its manufacturing and experimental implementation ground cost are very high, complex process, preparation such as washing and sterilizing and complicated operating process are loaded down with trivial details, and use and should note very key of controlled pressure ground size especially, generally should not surpass 0.2kg/cm
2Otherwise puncture filter membrane because pressure is crossed conference, cause the pollution of liquid.The filter membrane of stainless steel filter is because frivolous, respectively has a groove to fix to place a silicone gasket at the corresponding site of filter levels, compresses filter membrane, because filter membrane is thin, and smoothly easily move, thus must not be excessive during installation, too quickly, in order to avoid cause breaking of filter membrane.If,, can reduce the possibility that pollutes leakage because of the error of installing so cylindrical shell and filtering layer are integral so whether thorough directly can being related to that the sterilization preparation of the assembling of filter before suction filtration is done increases the size of polluting the chance of leaking.The existing weak point of prior art filter is: installation, cleaning, sterilizing operation are loaded down with trivial details; the structure heaviness, weight is big, the plugging rate height; easily pollute; easily leak, bad to the filter membrane protection, easily puncture; and equipment cost is high; the package unit cost is more than several thousand yuan, and the cost that produces in each experimental implementation process should not be promoted the use of in R﹠D institution of basic unit about hundred yuan.
The utility model content
The purpose of this utility model is exactly in order to overcome the defective that above-mentioned prior art exists, but provides a kind of disposable high-capacity positive of continuous filtration simple in structure to press sterile filters,
The technical scheme that the disposable high-capacity positive of the utility model presses sterile filters to be achieved is: comprise the filter membranous layer that is arranged in the cylindrical shell, the top of described cylindrical shell is provided with inlet and pressurization air inlet, described inlet is provided with the screw socket plug, the bottom of described cylindrical shell is provided with liquid outlet, described filter membranous layer is made of the sieve aperture gripper shoe that is separately positioned on the miillpore filter above and below, be distributed with a plurality of sieve apertures on described each sieve aperture gripper shoe, its aperture is 20-45cm; Described filter membranous layer and cylindrical shell are structure as a whole, and described filter membranous layer is divided into cylindrical shell top and cylindrical shell bottom two parts with cylindrical shell; Described pressurization air inlet is connected with conduit, and the other end of described conduit is provided with the manual pressure valve.
The disposable high-capacity positive of the utility model is pressed sterile filters, and wherein, described cylindrical shell is that transparent high-density polyethylene material constitutes, and barrel wall is marked with scale.Described manual pressure valve is made of the venting valve that is arranged on the Pressurized inflating ball.Described filter overall structure once injection moulding.
Compared with prior art, the beneficial effect that the utility model had is: (1) is because the utility model adopts the positive press filtration of manual pressure valve, pressue device operation simple in structure; (2) because cylindrical shell and filter membranous layer adopt the polythene material once injection moulding, the filter cylinder volume is big, the continuous filtration of suitable large volume fluid sample, designed capacity is that a filter liquide can reach 2000ml, overcome in the prior art can not continuous filtration for the large volume fluid sample shortcoming; (3) the utility model filter is made of the polythene material of withstand voltage transparent acid and alkali-resistance, with the product of original stainless steel relatively, having overcome filter that original stainless steel material makes, to have a cost low, characteristics such as cleans, sterilizing operation is easy, its cost performance height is easy to promote the use of.
Description of drawings
Accompanying drawing is the utility model structural representation.
Be the explanation of Reference numeral in the utility model Figure of description below:
1---screw socket plug 2---inlet 3---pressurization air inlet
4---conduit 5---manual pressure valve 6---cylindrical shell tops
7---sieve aperture upper backup pad 8---miillpore filter 9---sieve aperture lower supporting plates
10---cylindrical shell bottom 11---liquid outlet
The specific embodiment
The utility model will be further described below in conjunction with the drawings and specific embodiments.
The disposable high-capacity positive of the utility model presses the structure and the operation principle of sterile filters to be as can be seen from accompanying drawing: comprise the filter membranous layer that is arranged in the cylindrical shell, the top of described cylindrical shell is provided with inlet 2 and pressurization air inlet 3, described inlet 2 is provided with screw socket plug 1, the bottom of described cylindrical shell is provided with liquid outlet 11, described filter membranous layer is made of sieve aperture upper backup pad 7 that is separately positioned on miillpore filter 8 above and below and sieve aperture lower supporting plate 9, three parts constitute one, be distributed with a plurality of sieve apertures on described each sieve aperture gripper shoe, its screen-aperture is 20-45cm; Described filter membranous layer and cylindrical shell are structure as a whole, and described filter membranous layer is divided into cylindrical shell top 6 and cylindrical shell bottom 10 two parts with cylindrical shell, and cylindrical shell top 6, filter membranous layer and cylindrical shell bottom 10 disposable thermal die casts are an integral body, and integral material and casting technology cost are extremely low; Air inlet 3 is connected with conduit 4, the other end of described conduit 4 is provided with manual pressure valve 5, described manual pressure valve 5 is the Pressurized inflating ball part of similar sphygmomanometer, on have one the venting valve, the decompression of can arbitrarily pressurizeing, convenient and easy, by adopting positive pressure operation, can replace heavy loaded down with trivial details operating process such as gas pressurized such as original positive pressure pump or employing nitrogen pot, thereby reach the purpose of press filtration.In addition, described cylindrical shell is that transparent high-density polyethylene material constitutes, and tool acid-alkali-corrosive-resisting, to hot and cold characteristics such as good stability because it is with low cost, can be used as medical disposable material and uses.The wall of described cylindrical shell is marked with scale, and it is strong that staving has a transparent pressure-resistant stopping property,
When using the disposable high-capacity positive of the utility model to press sterile filters, in aseptic super-clean bench that the sterile filters opening installation is good, pack into to carry disease germs by inlet 2 and tighten screw socket plug 1 behind the liquid, the liquid outlet 11 of filter bottom is connected in the aseptic container, in order to collecting the sterile liquid after filtering, give airtight filter pressure filtration by manual pressure valve 5, pressure generally can not surpass 0.2kg/cm
2, sterile liquid cognition leaches under the effect of pressure, thereby finishes the process of whole filtrates.
Claims (4)
1. a disposable high-capacity positive is pressed sterile filters, comprise the filter membranous layer that is arranged in the cylindrical shell, the top of described cylindrical shell is provided with inlet (2) and pressurization air inlet (3), described inlet (2) is provided with screw socket plug (1), the bottom of described cylindrical shell is provided with liquid outlet (11), it is characterized in that: described filter membranous layer is made of the sieve aperture gripper shoe that is separately positioned on miillpore filter (8) above and below (7,9), is distributed with a plurality of sieve apertures on described each sieve aperture gripper shoe, and its aperture is 20-45cm; Described filter membranous layer and cylindrical shell are structure as a whole, and described filter membranous layer is divided into cylindrical shell top (6) and cylindrical shell bottom (10) two parts with cylindrical shell; Described pressurization air inlet (3) is connected with conduit (4), and the other end of described conduit (4) is provided with manual pressure valve (5).
2. disposable high-capacity positive according to claim 1 is pressed sterile filters, it is characterized in that: described cylindrical shell is that transparent high-density polyethylene material constitutes, and barrel wall is marked with scale.
3. disposable high-capacity positive according to claim 1 is pressed sterile filters, and it is characterized in that: described manual pressure valve (5) is made of the venting valve that is arranged on the Pressurized inflating ball.
4. press sterile filters according to claim 1,2 or 3 described disposable high-capacity positives, it is characterized in that: described filter overall structure once injection moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520027434 CN200980988Y (en) | 2005-09-21 | 2005-09-21 | Disposable large-volume positive pressure aseptic filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520027434 CN200980988Y (en) | 2005-09-21 | 2005-09-21 | Disposable large-volume positive pressure aseptic filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200980988Y true CN200980988Y (en) | 2007-11-28 |
Family
ID=38908152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520027434 Expired - Fee Related CN200980988Y (en) | 2005-09-21 | 2005-09-21 | Disposable large-volume positive pressure aseptic filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200980988Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107774138A (en) * | 2016-08-30 | 2018-03-09 | 新疆农业科学院农业质量标准与检测技术研究所 | Just press through membrane device |
| CN108730516A (en) * | 2018-05-25 | 2018-11-02 | 南京佳乐净膜科技有限公司 | The method of ink storing-purifying device and ink deep purifying freshization |
| CN114939345A (en) * | 2022-06-21 | 2022-08-26 | 浙江保尔曼生物科技有限公司 | Platelet-rich plasma preparation device and operation method thereof |
-
2005
- 2005-09-21 CN CN 200520027434 patent/CN200980988Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107774138A (en) * | 2016-08-30 | 2018-03-09 | 新疆农业科学院农业质量标准与检测技术研究所 | Just press through membrane device |
| CN108730516A (en) * | 2018-05-25 | 2018-11-02 | 南京佳乐净膜科技有限公司 | The method of ink storing-purifying device and ink deep purifying freshization |
| CN114939345A (en) * | 2022-06-21 | 2022-08-26 | 浙江保尔曼生物科技有限公司 | Platelet-rich plasma preparation device and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20091021 |