CN103100246B - Negative pressure filter - Google Patents
Negative pressure filter Download PDFInfo
- Publication number
- CN103100246B CN103100246B CN201310073394.9A CN201310073394A CN103100246B CN 103100246 B CN103100246 B CN 103100246B CN 201310073394 A CN201310073394 A CN 201310073394A CN 103100246 B CN103100246 B CN 103100246B
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- CN
- China
- Prior art keywords
- mouth
- reservoir
- air pressure
- props
- pressure balance
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- 239000007788 liquid Substances 0.000 claims abstract description 41
- 239000012528 membrane Substances 0.000 claims abstract description 11
- 230000000740 bleeding effect Effects 0.000 claims description 27
- 229920006221 acetate fiber Polymers 0.000 claims description 10
- 238000010079 rubber tapping Methods 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract description 4
- 229920002301 cellulose acetate Polymers 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 2
- 239000000835 fiber Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 5
- 230000001954 sterilising effect Effects 0.000 description 5
- 238000011085 pressure filtration Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a negative pressure filter, relates to a pressure filter or a suction filter, and aims to provide the negative pressure filter which has the advantages that the structure is simple, the operation is simple and convenient, and the negative pressure filter is continuously used for many times. The negative pressure filter provided by the invention comprises a liquid inlet device and a reservoir, wherein the lower end of the liquid inlet device is provided with a liquid outlet, and the upper end of the reservoir is provided with a liquid inlet; the liquid outlet at the lower end of the liquid inlet device and the liquid inlet at the upper end of the reservoir are relatively fixedly arranged, and the upper end of the liquid inlet is provided with a supporting net; the upper surface of the supporting net is provided with a cellulose acetate fiber filter membrane, the side wall of the reservoir is provided with an extraction opening branch nozzle, and the extraction opening branch nozzle is communicated with a vacuum pump; the bottom of the reservoir is provided with a liquid discharging port, and the liquid discharging port is provided with a liquid discharging valve; and the side wall of the reservoir is provided with an air pressure balance port branch nozzle, and the air pressure balance port branch nozzle is internally provided with an air pressure balance switch.
Description
Technical field
The present invention relates to a kind of pressure filter or suction filter, particularly relate to a kind of negative pressure filter with discharge device.
Background technology
R&D institution laboratory, hospital etc. often need to carry out aseptic filtration to various liquid.This process generally divides positive press filtration and negative pressure filtration.On negative pressure filtration market common whole be glassware, carry out overall sterilizing after first will installing micropore cellulose acetate film to whole filter during negative pressure aseptic filtration, then will bacteria liquid be had to be filled under negative pressure in the aseptic reservoir of filter bottom.Whole device must be opened after reservoir is full, the sterile liquid in reservoir is carried out packing.But device is opened rear whole device and must be re-started autoclaving and could again filter, and high-pressure sterilizing course wastes a large amount of time and the energy, therefore research and develop one can continuous, nonexpondable negative pressure filter extremely important.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of structure simple, easy and simple to handle, can continuous several times use negative pressure filter.
Negative pressure filter of the present invention, include liquid device and reservoir, described enter liquid device lower end offer liquid outlet, described reservoir upper end offers inlet, described enter the liquid outlet of liquid device lower end is relative with the inlet of reservoir upper end fixedly mounts, described inlet upper end is provided with supporting network, described supporting network upper surface is provided with acetate fiber filter membrane, the sidewall of described reservoir is provided with bleeding point and props up mouth, described bleeding point props up mouth and is connected with vavuum pump, the bottom of wherein said reservoir offers tap hole, described tap hole is provided with tapping valve, the sidewall of described reservoir is provided with air pressure balance mouth and props up mouth, described air pressure balance mouth props up in mouth and is provided with air pressure balance switch.
Negative pressure filter of the present invention, wherein said air pressure balance mouth props up on mouth inwall and is provided with internal thread, described air pressure balance switch comprises air pressure balance screw, the front end of described air pressure balance screw is threaded connection props up in mouth at air pressure balance mouth, the rear end of air pressure balance screw is installed with spanner, and described spanner and air pressure balance mouth are provided with silica gel sealing ring before propping up the termination of mouth.
Negative pressure filter of the present invention, the middle part of wherein said air pressure balance screw reduces gradually to point diameter.
Negative pressure filter of the present invention, wherein said bleeding point props up mouth and tilts upward and be arranged on the sidewall of reservoir, and bleeding point props up mouth near the internal diameter of reservoir and is greater than the internal diameter that bleeding point props up mouth outer end.
Negative pressure filter of the present invention, the wherein said bleeding point inclination angle of propping up between mouth and horizontal plane is 5 °, and it is 10mm that bleeding point props up mouth near the internal diameter of reservoir, and the internal diameter that bleeding point props up mouth outer end is 5mm.
Negative pressure filter of the present invention, the outer wall that wherein said bleeding point props up mouth outer end is provided with two circle back-offs.
Negative pressure filter of the present invention, the container bottom of wherein said reservoir has downward inclination angle, and described tap hole is positioned at the lowest part of container bottom.
Negative pressure filter of the present invention, wherein said acetate fiber filter membrane is provided with heat resistant joint ring.
Negative pressure filter of the present invention, wherein said enter liquid device lower end and reservoir upper end be respectively arranged with adpting flange, be fixedly connected with by some locking nuts between two described adpting flanges.
Negative pressure filter of the present invention, the bottom of wherein said reservoir is installed with three legs, and three described legs tilt 15 ° laterally.
Negative pressure filter difference from prior art of the present invention is that negative pressure filter of the present invention is provided with tap hole and tapping valve bottom reservoir, reservoir sidewall is provided with air pressure balance mouth and props up mouth and air pressure balance switch, after the liquid after reservoir inner filtration fills with, can be discharged by the liquid opened in bleeder valve goalkeeper reservoir, open the air pressure in air pressure balance switch-mode regulation reservoir simultaneously, be convenient to liquid and discharge from reservoir.Liquid can directly filter after discharging, and reservoir need not be sterilized with entering after discharge liquid opened by liquid device again, continuous several times can carry out aseptic filtration, until acetate fiber filter membrane is blocked completely by impurity, negative pressure filter of the present invention improves 5 ~ 10 times than the filter efficiency of common sterilizing filter, saves man power and material greatly.
Below in conjunction with accompanying drawing, negative pressure filter of the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the front view of negative pressure filter of the present invention;
Fig. 2 is the decomposing schematic representation of negative pressure filter of the present invention.
Detailed description of the invention
As depicted in figs. 1 and 2, negative pressure filter of the present invention includes liquid device 1 and reservoir 2, and the bottom of reservoir 2 is installed with three legs, 13, three legs 13 and tilts 15 ° laterally, for the whole filter of firm support.Enter liquid device 1 lower end and offer liquid outlet, reservoir 2 upper end offers inlet 3, the liquid outlet entering liquid device 1 lower end is relative with the inlet 3 of reservoir 2 upper end to be fixedly mounted, inlet 3 upper end is provided with supporting network 4, supporting network 4 upper surface is provided with acetate fiber filter membrane 5, acetate fiber filter membrane 5 is provided with heat resistant joint ring 10.Enter liquid device 1 lower end and reservoir 2 upper end and be fixedly connected with adpting flange 11 respectively, be fixedly connected with by four locking nuts 12 between two adpting flanges 11.
The sidewall of reservoir 2 is installed with the bleeding point tilted upward and props up mouth 6, the bleeding point inclination angle of propping up between mouth 6 and horizontal plane is 5 °, it is 10mm that bleeding point props up mouth 6 near the internal diameter of reservoir 2, the internal diameter that bleeding point props up mouth 6 outer end is 5mm, and bleeding point props up mouth 6 near the internal diameter of reservoir 2 and is greater than the internal diameter that bleeding point props up mouth 6 outer end.The outer wall that bleeding point props up mouth 6 outer end is provided with two circle back-offs, for the fixing sebific duct be connected with vavuum pump, bleeding point is propped up the change of mouth 6 internal diameter and inclination angle and can prevent from being gone because low pressure that bleeding point props up mouth 6 place is pumped in vavuum pump by the liquid of acetate fiber filter membrane 5 whereabouts.
The container bottom of reservoir 2 has downward inclination angle, and the lowest part of the bottom of reservoir 2 offers tap hole, tap hole is provided with tapping valve 7.The sidewall of reservoir 2 is installed with air pressure balance mouth and props up mouth 8, air pressure balance mouth props up in mouth 8 and is provided with air pressure balance switch 9.Air pressure balance mouth props up on mouth 8 inwall and is provided with internal thread, air pressure balance switch 9 comprises air pressure balance screw, air pressure balance screw length is 10mm, the front end of air pressure balance screw is threaded connection props up in mouth 8 at air pressure balance mouth, air pressure balance screw from middle part to the diameter of outer end second half section be 5mm, reduce gradually to point diameter from middle part, just can carry out pressure balance so that need not be screwed down by air pressure balance screw completely, avoid screw to be backed out completely rear contaminated.The rear end of air pressure balance screw is installed with spanner, and spanner and air pressure balance mouth are provided with silica gel sealing ring before propping up the termination of mouth 8.
Negative pressure filter of the present invention in use, first supporting network 4, acetate fiber filter membrane 5 and heat resistant joint ring 10 are arranged on successively inlet 3 place of reservoir 2 upper end, then will enter liquid device 1 and reservoir 2 fixing and locking by locking nut 12, air pressure balance switch and tapping valve 7 be tightened simultaneously; After negative pressure filter high pressure sterilizing, filter in superclean bench, when filter liquide reaches 1 liter, close vavuum pump, open pressure balance switch, then open tapping valve 7, the liquid in reservoir 2 is carried out aseptic subpackaged; Again tapping valve 7 and air pressure balance switch are tightened after packing, again carry out negative pressure filtration, repeat according to said process, until acetate fiber filter membrane 5 is blocked completely by impurity.Negative pressure filter of the present invention improves 5 ~ 10 times than the filter efficiency of common sterilizing filter, saves man power and material greatly.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (7)
1. a negative pressure filter, include liquid device (1) and reservoir (2), described enter liquid device (1) lower end offer liquid outlet, described reservoir (2) upper end offers inlet (3), described enter the liquid outlet of liquid device (1) lower end is relative with the inlet (3) of reservoir (2) upper end fixedly mounts, described inlet (3) upper end is provided with supporting network (4), described supporting network (4) upper surface is provided with acetate fiber filter membrane (5), the sidewall of described reservoir (2) is provided with bleeding point and props up mouth (6), described bleeding point props up mouth (6) and is connected with vavuum pump, it is characterized in that: the bottom of described reservoir (2) offers tap hole, described tap hole is provided with tapping valve (7), the sidewall of described reservoir (2) is provided with air pressure balance mouth and props up mouth (8), described air pressure balance mouth props up in mouth (8) and is provided with air pressure balance switch (9), described air pressure balance mouth props up on mouth (8) inwall and is provided with internal thread, described air pressure balance switch (9) comprises air pressure balance screw, the front end of described air pressure balance screw is threaded connection props up in mouth (8) at air pressure balance mouth, the middle part of air pressure balance screw reduces gradually to point diameter, the rear end of air pressure balance screw is installed with spanner, described spanner and air pressure balance mouth are provided with silica gel sealing ring before propping up the termination of mouth (8), described bleeding point prop up mouth (6) tilt upward be arranged on reservoir (2) sidewall on, the internal diameter that bleeding point props up the close reservoir (2) of mouth (6) is greater than the internal diameter that bleeding point props up mouth (6) outer end.
2. negative pressure filter according to claim 1, it is characterized in that: the described bleeding point inclination angle of propping up between mouth (6) and horizontal plane is 5 °, it is 10mm that bleeding point props up mouth (6) near the internal diameter of reservoir (2), and the internal diameter that bleeding point props up mouth (6) outer end is 5mm.
3. negative pressure filter according to claim 2, is characterized in that: the outer wall that described bleeding point props up mouth (6) outer end is provided with two circle back-offs.
4. negative pressure filter according to claim 1, is characterized in that: the container bottom of described reservoir (2) has downward inclination angle, and described tap hole is positioned at the lowest part of container bottom.
5. negative pressure filter according to claim 1, is characterized in that: described acetate fiber filter membrane (5) is provided with heat resistant joint ring (10).
6. negative pressure filter according to claim 1, it is characterized in that: described in enter liquid device (1) lower end and reservoir (2) upper end and be respectively arranged with adpting flange (11), be fixedly connected with by some locking nuts (12) between two described adpting flanges (11).
7. negative pressure filter according to claim 1, is characterized in that: the bottom of described reservoir (2) is installed with three legs (13), and three described legs (13) are tilted 15 ° laterally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310073394.9A CN103100246B (en) | 2013-03-08 | 2013-03-08 | Negative pressure filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310073394.9A CN103100246B (en) | 2013-03-08 | 2013-03-08 | Negative pressure filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103100246A CN103100246A (en) | 2013-05-15 |
| CN103100246B true CN103100246B (en) | 2015-02-11 |
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ID=48308646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310073394.9A Active CN103100246B (en) | 2013-03-08 | 2013-03-08 | Negative pressure filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103100246B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109718584A (en) * | 2019-01-09 | 2019-05-07 | 中国科学院合肥物质科学研究院 | Auxiliary device is used in a kind of filtering of soil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2582719Y (en) * | 2002-11-19 | 2003-10-29 | 张文龙 | Bilayer double effect filtering device |
| US7661538B1 (en) * | 2001-05-31 | 2010-02-16 | Roush Life Science, LLC | Disposable vacuum filtration funnel with integral prefilter |
| CN201815162U (en) * | 2010-10-19 | 2011-05-04 | 江苏沿江化工资源开发研究院有限公司 | Continuous vacuum switching suction filtering device used for removing active carbon in levamisole hydrochloride production |
| CN102350109A (en) * | 2011-06-27 | 2012-02-15 | 豆远奎 | Filter-cone-type vacuum filtration waste oil device |
| CN203090565U (en) * | 2013-03-08 | 2013-07-31 | 王淑慧 | Negative pressure filter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3499326B2 (en) * | 1995-03-24 | 2004-02-23 | 東亜ディーケーケー株式会社 | Filter |
-
2013
- 2013-03-08 CN CN201310073394.9A patent/CN103100246B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7661538B1 (en) * | 2001-05-31 | 2010-02-16 | Roush Life Science, LLC | Disposable vacuum filtration funnel with integral prefilter |
| CN2582719Y (en) * | 2002-11-19 | 2003-10-29 | 张文龙 | Bilayer double effect filtering device |
| CN201815162U (en) * | 2010-10-19 | 2011-05-04 | 江苏沿江化工资源开发研究院有限公司 | Continuous vacuum switching suction filtering device used for removing active carbon in levamisole hydrochloride production |
| CN102350109A (en) * | 2011-06-27 | 2012-02-15 | 豆远奎 | Filter-cone-type vacuum filtration waste oil device |
| CN203090565U (en) * | 2013-03-08 | 2013-07-31 | 王淑慧 | Negative pressure filter |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-257318A 1996.10.08 * |
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| Publication number | Publication date |
|---|---|
| CN103100246A (en) | 2013-05-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170714 Address after: Three road 300450 Tianjin Haitai Binhai high tech Zone Branch Huayuan Industrial Area 1 building -1-1004 No. 3 Patentee after: Tianjin hui'er corn seeds Co. Ltd. Address before: 300380 Tianjin District of Xiqing city Taibi Hou Xuan garden 3-4-502 Patentee before: Wang Shuhui |
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| TR01 | Transfer of patent right |