CN2706219Y - Gas filter having gas mixing function - Google Patents
Gas filter having gas mixing function Download PDFInfo
- Publication number
- CN2706219Y CN2706219Y CN 200420009077 CN200420009077U CN2706219Y CN 2706219 Y CN2706219 Y CN 2706219Y CN 200420009077 CN200420009077 CN 200420009077 CN 200420009077 U CN200420009077 U CN 200420009077U CN 2706219 Y CN2706219 Y CN 2706219Y
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- CN
- China
- Prior art keywords
- filter
- porous plate
- gas
- pneumatic filter
- air inlet
- 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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Abstract
The utility model belongs to the field of gas filter, in particular to a gas filter having gas mixing function, comprising a casing body, an air inlet pipe and a mixed gas air outlet pipe welded at the top cover of the casing, a perforated plate, a filtering medium, a bottom cap and a sealing ring or a cushion. An upper perforated plate and the casing body are welded as an integration and the upper perforated plate and the top cover leave space forming a gas mixed zone. A lower perforated plate is overlapped at the lobe plate of the bottom cap while the lower perforated plate and the lower face of the bottom cap leave a gas premixed zone, and an air inlet pipe in sequence passes through the circular hole of the upper perforated plate, the filtering medium zone and the circular hole of the lower perforated plate extending into a gas premixed chamber. The gas like air, CO2, O2, N2, etc can enter a filter with definite quantity, passing through the filtering zone after being mixed at the premixed chamber and then flowing out through a mixed chamber after being thoroughly mixed. The design simplifies the equipment and the connection pipeline, is convenient to disassembly and change the filtering medium, effectively prolonging the service life of a secondary filter.
Description
Technical field
The utility model belongs to the pneumatic filter field, particularly a kind of pneumatic filter that has the gas mixed function concurrently.
Background technology
Bioreactor is generally installed the two-stage gas filter when being used for cell and cultivating, the first order is a prefiltration, and main purpose is to remove bulky grain such as dust in air, part degerming simultaneously.Second level filter is selected the filter medium of certain pore size and thickness for use according to the needs of cultivating.Usually the filter medium of first order filter is more cheap, and partial filter medium is relatively more expensive.Certainly the situation that first order filter is not installed is also arranged, at this moment the life-span of cascade filtration medium can shorten, and causes cost to increase.
Existing pneumatic filter generally has only a gas access, gas vent and a discharge outlet (being used to discharge condensed water), therefore when using multiple gases, need to install separately a gas mixer, this can increase the binding of pipeline, also increase the workload of plant maintenance, and increased taking up room or volume of equipment.If at the place, gas access a plurality of imports are set simply, an end of considering filter will stay dismountable free end face (with flange or threaded connection) so that change filter medium, then a plurality of gas accesses generally will be along the circumferential distribution of filter, and this can make pipeline link complicated and inconvenient operation and maintenance.
The utility model content
The purpose of this utility model is that gas mixes and the installation and the binding of filtration system in order to simplify, and a kind of pneumatic filter that has the gas mixed function concurrently is provided.
The utility model is a kind of pneumatic filter that has the gas mixed function concurrently, and filter is provided with 2 gas mixer chambers and filter medium district, finishes primary filter when air and other gas are mixed, and sees accompanying drawing 1 for details.
The pneumatic filter that has the gas mixed function concurrently of the present utility model comprises cylindrical housings, is welded in air inlet pipe and gaseous mixture escape pipe, porous plate, filter medium, bottom and sealing ring (pad) on the outer casing upper cover;
One pneumatic filter is equipped with porous plate 3 below the loam cake in pneumatic filter, porous plate 6 down is installed above the bottom of pneumatic filter, and the filter medium district between last porous plate 3 and following porous plate 6 is filled with fiber filter media for 4 li; Cover the mouth of pipe that has air inlet pipe 5 and gaseous mixture escape pipe 1 on pneumatic filter, 1～6 air inlet pipe 5 and gaseous mixture escape pipe 1 are on same end face; The bottom 8 that the lower housing portion of pneumatic filter and a upper surface have a circle lobe plate 14 links; Described binding can be that screw thread, flange or clip link, to make things convenient for the replacing of filter medium.
Described housing weldering of going up porous plate and pneumatic filter is one, leaves the space between last porous plate and loam cake and forms a gas mixing zone 2.Circular hole is left, the aperture that the uniform diameter of other parts is 2～10 millimeters in the position of the corresponding air inlet pipe of last porous plate.
Described porous plate down rides on the lobe plate of bottom, and leaves gas pre-mixed district 7 between the bottom lower surface, and circular hole is left, 2～10 millimeters apertures of the uniform diameter of other parts in the position of the corresponding air inlet pipe of following porous plate.Following porous plate drops out naturally after taking bottom apart, is convenient to change filter medium.
Described gaseous mixture mouth of pipe place is equipped with gaseous mixture escape pipe 1.
Described air inlet mouth of pipe place is equipped with air inlet pipe, and air inlet pipe is passed the circular hole, filter medium district of porous plate successively, the circular hole of porous plate extend in the gas pre-mixed chamber down.
Described going up on porous plate and the following porous plate has aperture.
Multiple gases is passed filter medium district and last porous plate, is descended the uniform aperture on the porous plate behind the premix in the premixer, enter mixing chamber and further mix the back from the gas outlet outflow, removes next unit (secondary filter).So a plurality of air inlets and gas outlet are located at same end face, as the upper surface of filter housing, another end face (lower bottom cover) need not to be provided with interface.
Last porous plate of this pneumatic filter and shell weldering are one, leave the space between last porous plate and outer casing upper cover and form a mixed zone, and following porous plate drops on the lobe plate of bottom naturally, and forms pre-confounding between the bottom lower surface.The projected position of last porous plate and the corresponding air inlet pipe of following porous plate leaves circular hole, the aperture that the uniform diameter of other parts is 2～10 millimeters.Following porous plate drops out naturally after taking bottom apart, is convenient to change filter medium.Between bottom and housing isolating construction, and with O shape rubber ring or rubber gasket 13 sealings.Can link or the clip binding by threaded connection, flange between bottom and filter housing.
Except filter medium with natural or synthetic fibers be advisable, sealed material is advisable with silicon rubber or fluorubber, the material of other parts is advisable with stainless steel, and will meet requirement of withstand voltage.Air, CO
2, O
2, N
2Can quantitatively enter filter Deng gas, mix the back in the premixer, fully mix the back through mixing chamber again and flow out by the filter medium district.
Fixing of this filter: when being used for the gas prefiltration of small-sized bioreactor, can reserve blind screwhole 10, oppositely pass fixed head 11 backs fixing (accompanying drawing 2) with bolt 9 at the reverse side (lower surface) of bottom 8; Also the periphery of bottom can be strengthened, through hole 12 is set on outer shroud, be fixed on (accompanying drawing 3) on the fixed head 11 with bolt 9.When being used for the gas prefiltration of macro-organism reactor, 3～4 ear framves can be set on the shell of filter, support whole filter.
Filter of the present utility model can be removed dust in air and part microorganism after having filled the thick fibrous filter media of 50mm, effectively prolonged the service life of secondary filter.Simultaneously design simplification of the present utility model equipment and link pipeline, for convenience detach and change filter medium, also effectively prolonged the service life of secondary filter.
Description of drawings
Fig. 1. the utility model pneumatic filter structural representation.
Fig. 2. the utility model pneumatic filter bottom is schematic diagram fixedly.
Fig. 3. the utility model pneumatic filter bottom is schematic diagram fixedly.
Reference numeral
1. porous plate 4. filter medium districts on escape pipe 2. mixing chambers 3.
5. 6. times porous plates of air inlet pipe gas pre-mixed chambers 7., 8. bottoms
9. bolt 10. blind screwholes 11. fixed heads 12. through holes
13. sealing ring (pad) 14. lobe plates
The specific embodiment
Embodiment.
Please refer to Fig. 1～3.One pneumatic filter comprises cylindrical housings, is welded in air inlet pipe and gaseous mixture escape pipe, porous plate, filter medium, bottom and sealing ring (pad) on the outer casing upper cover, and structure as mentioned above.The internal diameter of shell is 30～600 millimeters, and inner height is 1～20 with the ratio of diameter, and the volume of filter medium accounts for 30%～90% of shell inner volume.In the filter medium district, filled thick common commercially available cotton or the glass fiber shape filter medium of 50mm; The premixer is of a size of φ 39 * high by 20 (millimeter), mixing chamber is of a size of φ 51 * high by 28 (millimeter), air inlet is air, oxygen, nitrogen, carbon dioxide gas, be used for the cultivation of little algae, total gas couette is in 0.2～20 liter/minute scope, can effectively remove dust in air and part microorganism, make two rank filters the obstruction or the pollution that are caused by dust etc. not take place in the life-span at effective sterilizing.
Claims (8)
1. pneumatic filter that has the gas mixed function concurrently comprises the pneumatic filter housing, is welded in air inlet pipe and gaseous mixture escape pipe, porous plate, filter medium, bottom and sealing ring or the pad of outer casing upper cover, it is characterized in that:
One pneumatic filter, porous plate (3) is installed below the loam cake in pneumatic filter, porous plate (6) down is installed above the bottom of pneumatic filter, and the lining, filter medium district (4) between last porous plate (3) and following porous plate (6) is filled with fiber filter media; Cover the mouth of pipe that has air inlet pipe (5) and gaseous mixture escape pipe (1) on pneumatic filter, air inlet pipe and escape pipe are on same end face; The bottom that the lower case of pneumatic filter and a upper surface have a circle lobe plate (14) links;
Described gaseous mixture mouth of pipe place is equipped with gaseous mixture escape pipe (1);
Described air inlet mouth of pipe place is equipped with air inlet pipe (5), and air inlet pipe is passed the hole, filter medium of porous plate successively, the hole of porous plate extend in the gas pre-mixed chamber (7) down;
Described going up on porous plate and the following porous plate has aperture.
2. pneumatic filter as claimed in claim 1 is characterized in that: the described diameter of going up aperture on porous plate and the following porous plate is 2～10 millimeters.
3. pneumatic filter as claimed in claim 1 is characterized in that: described loam cake below is equipped with porous plate, is that last porous plate is welded on the housing of pneumatic filter, and goes up between porous plate and the loam cake and leave the space.
4. pneumatic filter as claimed in claim 1 is characterized in that: described bottom top is equipped with down porous plate, is that following porous plate is ridden on the lobe plate of bottom.
5. pneumatic filter as claimed in claim 1 is characterized in that: described air inlet pipe is 1～6.
6. pneumatic filter as claimed in claim 1 is characterized in that: it is that screw thread, flange or clip link that the lower housing portion of described pneumatic filter and bottom link.
7. pneumatic filter as claimed in claim 1 is characterized in that: the sealing of O shape rubber ring or rubber gasket is further arranged between described bottom and housing.
8. pneumatic filter as claimed in claim 1 is characterized in that: the volume of described filter medium accounts for 30%～90% of pneumatic filter volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420009077 CN2706219Y (en) | 2004-05-31 | 2004-05-31 | Gas filter having gas mixing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420009077 CN2706219Y (en) | 2004-05-31 | 2004-05-31 | Gas filter having gas mixing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2706219Y true CN2706219Y (en) | 2005-06-29 |
Family
ID=34848516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420009077 Expired - Fee Related CN2706219Y (en) | 2004-05-31 | 2004-05-31 | Gas filter having gas mixing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2706219Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143211A (en) * | 2013-03-19 | 2013-06-12 | 沈阳兴工铜业有限公司 | Pollutant recovery and purification device in metal material vacuum casting process |
| CN112816620A (en) * | 2020-12-31 | 2021-05-18 | 杭州谱育科技发展有限公司 | Gas concentration adjusting device and method |
-
2004
- 2004-05-31 CN CN 200420009077 patent/CN2706219Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143211A (en) * | 2013-03-19 | 2013-06-12 | 沈阳兴工铜业有限公司 | Pollutant recovery and purification device in metal material vacuum casting process |
| CN103143211B (en) * | 2013-03-19 | 2016-09-28 | 沈阳兴工铜业有限公司 | Pollutant reclaiming clean device during metal material vacuum casting |
| CN112816620A (en) * | 2020-12-31 | 2021-05-18 | 杭州谱育科技发展有限公司 | Gas concentration adjusting device and method |
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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: 20050629 Termination date: 20130531 |