CN203090565U - Negative pressure filter - Google Patents
Negative pressure filter Download PDFInfo
- Publication number
- CN203090565U CN203090565U CN 201320105572 CN201320105572U CN203090565U CN 203090565 U CN203090565 U CN 203090565U CN 201320105572 CN201320105572 CN 201320105572 CN 201320105572 U CN201320105572 U CN 201320105572U CN 203090565 U CN203090565 U CN 203090565U
- Authority
- CN
- China
- Prior art keywords
- mouth
- reservoir
- props
- negative pressure
- air pressure
- 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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- 239000007788 liquid Substances 0.000 claims abstract description 36
- 239000012528 membrane Substances 0.000 claims abstract description 11
- 238000011085 pressure filtration Methods 0.000 claims description 37
- 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
- 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
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a press filter or a suction filter, and aims at providing a negative pressure filter which is simple in structure and simple and convenient to operate and which can be continuously used for multiple times. The negative pressure filter comprises a feeder and a reservoir, wherein a liquid outlet is formed in the lower end of the liquid feeder; a liquid inlet is formed in the upper end of the reservoir; the liquid outlet in the lower end of the feeder and the liquid inlet in the upper end of the reservoir are relatively and fixedly installed; a support net is installed at the upper end of the liquid feeder; a cellulose acetate fiber filter membrane is arranged on the upper surface of the support net; an extraction opening support nozzle is arranged on the side wall of the reservoir; the extraction opening support nozzle is communicated with a vacuum pump; a discharge port is formed in the bottom of the reservoir; a discharge valve is installed on the discharge port; a pressure balance port support nozzle is arranged on the side wall of the reservoir; and a pressure balance switch is installed inside the pressure balance port support nozzle.
Description
Technical field
The utility model relates to a kind of pressure filter or suction filter, particularly relates to a kind of negative pressure filtration device that has discharge device.
Background technology
R﹠D institution laboratory, hospital etc. often need carry out aseptic filtration to various liquid.General positive press filtration and the negative pressure filtration of dividing of this processing.On the negative pressure filtration market common whole be glassware, carry out the integral body sterilization after at first will installing the micropore cellulose acetate film during negative pressure aseptic filtration to whole filter, will have bacteria liquid under negative pressure, to be filled in the aseptic reservoir of filter bottom then.Must open whole device after reservoir is full, the sterile liquid in the reservoir is carried out packing.Whole device must carry out autoclaving again and could filter once more but device is opened the back, and therefore the time and the energy that the high-pressure sterilizing course waste is a large amount of are researched and developed a kind of can continuous, nonexpondable negative pressure filtration device extremely important.
The utility model content
The technical problems to be solved in the utility model provides a kind of simple in structure, easy and simple to handle, negative pressure filtration device of can continuous several times using.
The utility model negative pressure filtration device, include liquid device and reservoir, describedly go into liquid device lower end and offer liquid outlet, described reservoir upper end offers inlet, describedly go into the liquid outlet of liquid device lower end and the inlet relative fixed of reservoir upper end is installed, described inlet upper end is equipped with supporting network, described supporting network upper surface is provided with the 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, the tapping valve is installed on the described tap hole, the sidewall of described reservoir is provided with the air pressure balance mouth and props up mouth, and described air pressure balance mouth props up the air pressure balance switch is installed in the mouth.
The utility model negative pressure filtration device, wherein said air pressure balance mouth props up the mouth inwall and is provided with internal thread, described air pressure balance switch comprises the air pressure balance screw, the front end of described air pressure balance screw props up in the mouth by being threaded in the air pressure balance mouth, the rear end of air pressure balance screw is installed with spanner, and the termination that described spanner and air pressure balance mouth prop up mouth is provided with silica gel sealing ring before.
The utility model negative pressure filtration device, the middle part of wherein said air pressure balance screw to point diameter dwindles gradually.
The utility model negative pressure filtration device, wherein said bleeding point prop up mouth and are tilted on the sidewall that is installed in reservoir, and the internal diameter that bleeding point props up the close reservoir of mouth props up the internal diameter of mouth outer end greater than bleeding point.
The inclination angle that the utility model negative pressure filtration device, wherein said bleeding point prop up between mouth and the horizontal plane is 5 °, and the internal diameter that bleeding point props up the close reservoir of mouth is 10mm, and the internal diameter that bleeding point props up the mouth outer end is 5mm.
The outer wall that the utility model negative pressure filtration device, wherein said bleeding point prop up the mouth outer end is provided with two circle back-offs.
The utility model negative pressure filtration device, the container bottom of wherein said reservoir has downward inclination angle, and described tap hole is positioned at the lowest part of container bottom.
The utility model negative pressure filtration device, wherein said acetate fiber filter membrane is provided with heat resistant joint ring.
The utility model negative pressure filtration device is wherein saidly gone into liquid device lower end and the reservoir upper end is respectively arranged with adpting flange, and is fixedly connected by some locking nuts between two described adpting flanges.
The utility model negative pressure filtration device, the bottom of wherein said reservoir are installed with three legs, and three described legs tilt 15 ° laterally.
The utility model negative pressure filtration device difference from prior art is that the utility model negative pressure filtration device is provided with tap hole and tapping valve in the reservoir bottom, the reservoir sidewall is provided with the air pressure balance mouth and props up mouth and air pressure balance switch, after the liquid behind the reservoir inner filtration fills with, can discharge by the liquid of opening in the bleeder valve goalkeeper reservoir, open the air pressure balance switch simultaneously and regulate the interior air pressure of reservoir, be convenient to liquid and from reservoir, discharge.Liquid can directly filter after discharging, sterilize again after the liquid device is opened discharge liquid and need not and go into reservoir, can continuous several times carry out aseptic filtration, blocked fully by impurity until the acetate fiber filter membrane, negative pressure filtration device of the present utility model improves 5～10 times than the filter efficiency of common sterilizing filter, has saved the man power and material greatly.
Below in conjunction with accompanying drawing negative pressure filtration device of the present utility model is described further.
Description of drawings
Fig. 1 is the front view of the utility model negative pressure filtration device;
Fig. 2 is the decomposing schematic representation of the utility model negative pressure filtration device.
The specific embodiment
As depicted in figs. 1 and 2, the utility model negative pressure filtration device includes liquid device 1 and reservoir 2, and the bottom of reservoir 2 is installed with 13, three legs 13 of three legs and tilts 15 ° laterally, is used for the whole filter of firm support.Go into liquid device 1 lower end and offer liquid outlet, reservoir 2 upper ends offer inlet 3, going into the liquid outlet of liquid device 1 lower end and inlet 3 relative fixed of reservoir 2 upper ends installs, inlet 3 upper ends are equipped with supporting network 4, supporting network 4 upper surfaces are provided with acetate fiber filter membrane 5, and acetate fiber filter membrane 5 is provided with heat resistant joint ring 10.Going into liquid device 1 lower end and reservoir 2 upper ends is fixedly connected with between 11, two adpting flanges 11 of adpting flange fixedly connected by four locking nuts 12 respectively.
Be installed with the bleeding point that is tilted on the sidewall of reservoir 2 and prop up mouth 6, the inclination angle that bleeding point props up between mouth 6 and the horizontal plane is 5 °, the internal diameter that bleeding point props up mouth 6 close reservoirs 2 is 10mm, the internal diameter that bleeding point props up mouth 6 outer ends is 5mm, and the internal diameter that bleeding point props up mouth 6 close reservoirs 2 props up the internal diameter of mouth 6 outer ends greater than bleeding point.The outer wall that bleeding point props up mouth 6 outer ends is provided with two circle back-offs, be used for fixing the sebific duct that is connected with vavuum pump, bleeding point props up that the variation of mouth 6 internal diameters and inclination angle can prevent the liquid that falls by acetate fiber filter membrane 5 because bleeding point props up the low pressure at mouth 6 places is pumped in the vavuum pump and goes.
The container bottom of reservoir 2 has downward inclination angle, and the lowest part of the bottom of reservoir 2 offers tap hole, and tapping valve 7 is installed on the tap hole.Be installed with the air pressure balance mouth on the sidewall of reservoir 2 and prop up mouth 8, the air pressure balance mouth props up air pressure balance switch 9 is installed in the mouth 8.The air pressure balance mouth props up mouth 8 inwalls and is provided with internal thread, air pressure balance switch 9 comprises the air pressure balance screw, air pressure balance screw length is 10mm, the front end of air pressure balance screw props up in the mouth 8 by being threaded in the air pressure balance mouth, the air pressure balance screw is 5mm from the middle part to the diameter of outer end second half section, dwindle gradually from the middle part to point diameter, can carry out pressure balance so that need not fully the air pressure balance screw just be screwed down, it is contaminated to avoid screw to be backed out the back fully.The rear end of air pressure balance screw is installed with spanner, and the termination that spanner and air pressure balance mouth prop up mouth 8 is provided with silica gel sealing ring before.
The utility model negative pressure filtration device in use, at first supporting network 4, acetate fiber filter membrane 5 and heat resistant joint ring 10 are installed in successively inlet 3 places of reservoir 2 upper ends, to go into liquid device 1 and reservoir 2 fixing and lockings by locking nut 12 then, simultaneously air pressure balance switch and tapping valve 7 be tightened; After the sterilization of negative pressure filtration device integral high pressure, in superclean bench, filter, when filter liquide reaches 1 liter, close vavuum pump, open the pressure balance switch, open tapping valve 7 then, carry out the liquid in the reservoir 2 aseptic subpackaged; Again tapping valve 7 and air pressure balance switch are tightened after packing finishes, carried out negative pressure filtration once more,, blocked fully by impurity until acetate fiber filter membrane 5 according to the said process repetitive operation.Negative pressure filtration device of the present utility model improves 5～10 times than the filter efficiency of common sterilizing filter, has saved the man power and material greatly.
Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (10)
1. negative pressure filtration device, include liquid device (1) and reservoir (2), describedly go into liquid device (1) lower end and offer liquid outlet, described reservoir (2) upper end offers inlet (3), describedly go into the liquid outlet of liquid device (1) lower end and inlet (3) relative fixed of reservoir (2) upper end is installed, described inlet (3) upper end is equipped 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, tapping valve (7) is installed on the described tap hole, the sidewall of described reservoir (2) is provided with the air pressure balance mouth and props up mouth (8), and described air pressure balance mouth props up air pressure balance switch (9) is installed in the mouth (8).
2. negative pressure filtration device according to claim 1, it is characterized in that: described air pressure balance mouth props up mouth (8) inwall and is provided with internal thread, described air pressure balance switch (9) comprises the air pressure balance screw, the front end of described air pressure balance screw props up in the mouth (8) by being threaded in the air pressure balance mouth, the rear end of air pressure balance screw is installed with spanner, and the termination that described spanner and air pressure balance mouth prop up mouth (8) is provided with silica gel sealing ring before.
3. negative pressure filtration device according to claim 2 is characterized in that: the middle part of described air pressure balance screw to point diameter dwindles gradually.
4. negative pressure filtration device according to claim 1, it is characterized in that: described bleeding point props up mouth (6) and is tilted on the sidewall that is installed in reservoir (2), and the internal diameter that bleeding point props up the close reservoir (2) of mouth (6) props up the internal diameter of mouth (6) outer end greater than bleeding point.
5. negative pressure filtration device according to claim 4, it is characterized in that: the inclination angle that described bleeding point props up between mouth (6) and the horizontal plane is 5 °, the internal diameter that bleeding point props up the close reservoir (2) of mouth (6) is 10mm, and the internal diameter that bleeding point props up mouth (6) outer end is 5mm.
6. negative pressure filtration device according to claim 5 is characterized in that: the outer wall that described bleeding point props up mouth (6) outer end is provided with two circle back-offs.
7. negative pressure filtration device 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.
8. negative pressure filtration device according to claim 1 is characterized in that: described acetate fiber filter membrane (5) is provided with heat resistant joint ring (10).
9. negative pressure filtration device according to claim 1, it is characterized in that: describedly go into liquid device (1) lower end and reservoir (2) upper end is respectively arranged with adpting flange (11), fixedly connected between two described adpting flanges (11) by some locking nuts (12).
10. negative pressure filtration device 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) tilt 15 ° laterally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320105572 CN203090565U (en) | 2013-03-08 | 2013-03-08 | Negative pressure filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320105572 CN203090565U (en) | 2013-03-08 | 2013-03-08 | Negative pressure filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203090565U true CN203090565U (en) | 2013-07-31 |
Family
ID=48842011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320105572 Expired - Fee Related CN203090565U (en) | 2013-03-08 | 2013-03-08 | Negative pressure filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203090565U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103100246A (en) * | 2013-03-08 | 2013-05-15 | 王淑慧 | Negative pressure filter |
| CN103611344A (en) * | 2013-11-05 | 2014-03-05 | 无锡凯夫制药有限公司 | Material filtering apparatus |
| CN106267949A (en) * | 2016-08-12 | 2017-01-04 | 上海北裕分析仪器股份有限公司 | Can the Quick suction filtration device of in line liquid |
-
2013
- 2013-03-08 CN CN 201320105572 patent/CN203090565U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103100246A (en) * | 2013-03-08 | 2013-05-15 | 王淑慧 | Negative pressure filter |
| CN103100246B (en) * | 2013-03-08 | 2015-02-11 | 王淑慧 | Negative pressure filter |
| CN103611344A (en) * | 2013-11-05 | 2014-03-05 | 无锡凯夫制药有限公司 | Material filtering apparatus |
| CN106267949A (en) * | 2016-08-12 | 2017-01-04 | 上海北裕分析仪器股份有限公司 | Can the Quick suction filtration device of in line liquid |
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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 |
Granted publication date: 20130731 Termination date: 20140308 |