CN100335006C - Scrubber - Google Patents
Scrubber Download PDFInfo
- Publication number
- CN100335006C CN100335006C CNB038218569A CN03821856A CN100335006C CN 100335006 C CN100335006 C CN 100335006C CN B038218569 A CNB038218569 A CN B038218569A CN 03821856 A CN03821856 A CN 03821856A CN 100335006 C CN100335006 C CN 100335006C
- Authority
- CN
- China
- Prior art keywords
- outlet opening
- scrubber
- filtering material
- air
- housing
- 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 - Lifetime
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Abstract
A scrubber for eliminating NO from air flowing through the scrubber, comprising a housing (1) having at least one inlet hole (2) and an outlet hole (4) and which is comprising filtering material (6). A second outlet hole (9) is provided in the housing (1) at a position situated at a distance from the first outlet hole (4) and any inlet hole (2) so that the air leaving the second outlet hole (9) will have flown at least through a depth of the filtering material (6) substantially corresponding to the depth of the filtering material (6) for the air flowing from the inlet hole (2) to the first outlet hole (4).
Description
Technical field
The present invention relates to a kind of scrubber, be used for getting rid of a kind of composition from the air that flows through scrubber.
Background technology
Known scrubber comprises a housing, and described housing has at least one inlet hole and an outlet opening and comprises filtering material.Scrubber can for example be used in any needs for example not to be had in the equipment of nitric oxide air, and for example,, be used in and measure nitric oxide in air for scale, particularly in the air of breathing out, or in the device of the level in what its admixture of gas in office.In this case, the experimenter sucks air so that nitric oxide has been filtered away by scrubber from air.The flow velocity of air is for example in about 1-10 liter/second.
Preferably, there is reflux inlet to be positioned between the outlet of the outlet/inlet of device and scrubber, sucks/breathe out, make the air of breathing out just not arrive any test section of device by scrubber by described outlet/inlet experimenter.
When zero reference partly being provided for Device Testing or carrying out function control, with one little air flow that does not have certain composition, for example do not have the nitric oxide air flow, and it is joined between the outlet and reflux inlet of scrubber.A problem like this is to exist the backflow of leaking by reflux inlet and the zero blended probability of reference air.To jeopardize zero precision of measuring like this.
This certainly to any from air the filtration of a kind of composition of filtering all be real.Therefore, the purpose of this invention is to provide a kind of scrubber, it can make zero to flow out reliably from scrubber with reference to air-flow safely, and the air of this composition of filtering that sucks for the experimenter also is same.
Summary of the invention
This purpose can realize by a kind of scrubber provided by the invention.This scrubber is used for getting rid of a kind of composition from the air that flows through described scrubber, this scrubber comprises a housing, described housing has at least one inlet hole and an outlet opening to comprise filtering material, it is characterized in that: second outlet opening is arranged on the position that separates certain distance in the housing with first outlet opening and any inlet hole, the air that comes out from second outlet opening has passed through the thickness of a filtering material at least thus, this thickness at least corresponding to air from inlet hole flow to first outlet opening the thickness of filtering material of process; Be distributed on the terminal side of housing with some inlet holes, described terminal side is relative with terminal side, the first outlet opening place.
The advantage of this solution is that under the leakage or disruptive situation of reflux inlet, the thickness of filtering material still enough comes filtered air greatly, makes security of system.The reflux inlet that is also advantageous in that of this scheme can be the standard machinery device that is suitable for big flow velocity, and this device is cheap, rather than needs the electrically-controlled valve of the little flow velocity of control.
Another problem of the scrubber of knowing is that outlet is suitable for big flow velocity, this just means in outlet big " dead band ", should there be air to stagnate in " dead band ", must be before definite air has flow through scrubber as the air-flow of zero reference or operation control through for a long time.
According to embodiments of the invention, this second outlet goes out young than first, thus in second outlet " dead band " thus minimum form very effective system, in this system in order to confirm that zero reference stream only needs less air to flow through scrubber through scrubber safely.
Preferably scrubber is used for nitric oxide is filtered away from air.
The problem of the nitric oxide scrubber of knowing is that they comprise that carbon filter gets rid of nitric oxide.Yet these scrubbers are not suitable for life-time service.Even, also can lose the nitric oxide production ability of getting rid of very soon when they are exposed to humidity in the following time of ambient humidity level that exists usually.Another shortcoming is that they need big volume could get rid of nitric oxide under high flow rate that urban environment runs into usually and concentration.
Therefore, the purpose of this invention is to provide a little scrubber, its suitable life-time service.What address this problem is a scrubber, and it comprises potassium permanganate KmnO
4Or with the bonded potassium permanganate of an amount of level carbon.The advantage of this material is that it and nitric oxide react and formation manganese dioxide.It keeps filter capacity at wet environment, in fact is better than under dry environment.
Description of drawings
Embodiment to scrubber of the present invention is described below in conjunction with accompanying drawing, wherein:
Fig. 1. show cross-sectional view according to scrubber embodiment of the present invention.
Fig. 2. the scrubber that shows Fig. 1 has the lateral view of terminal of inlet hole.
Fig. 3. show the perspective view of the scrubber of Fig. 1.
The specific embodiment
Scrubber of the present invention comprises housing 1, and described housing 1 has at least one inlet hole 2, be positioned at the terminal side 5 relative with import terminal side 3 on first outlet opening 4, some in an illustrated embodiment small inlets hole 2 is distributed on the terminal side 3.Filtering material 6 is arranged in shell 1.
Between housing 1 and filtering material 6, exist particulate filter 7 to leave scrubber by hole 2,4 with the microgranule that stops filtering material 6 at inlet hole 2 and first outlet opening, 4 places.
Scrubber among the shown embodiment has cylindrical wall 8 between terminal side 3,5, other shape also is conceivable certainly.Second outlet opening 9 is arranged on wall 8.This hole 9 also by particulate filter 7 protections, is left scrubber with the microgranule that stops filtering material 6 by second hole 9 in inside.In an illustrated embodiment, the air that comes from inlet hole 2 flow through filtering material 6 by path 10 to second outlet opening 9.
Preferably, to be designed to the air throughput be about 0.5-50 milliliters/second for about 1-10 liter/second second outlet opening 9 is designed to throughput to first outlet opening 4.
For the air that guarantees to leave second outlet opening 9 has passed through the filtering material 6 of adequate thickness, 3 contiguous second outlet openings, 9 places do not have inlet hole 2 in the terminal side.Air must be by the filtering material 6 of adequate thickness like this, for example this thickness air at least basically corresponding to air between the inlet hole 2 and first outlet opening 4 by the time process the thickness of filtering material, described thickness is guaranteed certain composition, and for example nitric oxide filters from air.
In order to guarantee that air flows to second outlet opening 9 rather than flows to that second outlet opening, 9, one reflux inlets 11 can be placed in first outlet opening 4 or in the outside of outlet opening 4 extensions from first outlet opening 4 from inlet hole 2.
As safety measure, under the situation that reflux inlet 11 leaks, second outlet opening 9 also should separate certain distance with first outlet opening 4 and be provided with.The filtering material 6 that air must be by adequate thickness like this, when this thickness flows through between the inlet hole 2 and first outlet opening 4 corresponding to air basically the thickness of process, this thickness is guaranteed composition, for example nitric oxide can filter from air.
If the composition of removing is a nitric oxide, filtering material 6 is preferably the potassium permanganate KMnO of particle form
4Or with the bonded potassium permanganate of carbon of an amount of level.This particulate size can be preferably the 1/32-1/64 inch for the 1/8-1/128 inch.Under common urban environment, preferably in the air that comes out from any outlet opening 4,9 nitric oxide production concentration less than 5ppb.
The invention is not restricted to the embodiment that shows and describe, but any changes and improvements are all in the protection domain of appended claims.
Claims (12)
1. scrubber, be used for getting rid of a kind of composition from the air that flows through described scrubber, comprise a housing (1), described housing has at least one inlet hole (2) and an outlet opening (4) and comprises filtering material (6), it is characterized in that: second outlet opening (9) is arranged on the position that separates certain distance in the housing (1) with first outlet opening (4) and any inlet hole (2), the air that comes out from second outlet opening (9) has passed through the thickness of a filtering material (6) at least thus, this thickness at least corresponding to air from inlet hole (2) flow to first outlet opening (4) the thickness of filtering material (6) of process; With
Some inlet holes (2) are distributed on the terminal side (3) of housing (1), and described terminal side (3) is relative with terminal side, first outlet opening (4) place (5).
2. scrubber according to claim 1 is characterized in that: wherein said second outlet opening (9) is designed to have the little air throughput than first outlet opening (4).
3. scrubber according to claim 1 and 2 is characterized in that: second outlet opening (9) is arranged on the wall (8) of housing (1), and described wall (8) is between two terminal sides (3,5).
4. scrubber according to claim 1 and 2, it is characterized in that: the place of vicinity second outlet opening (9) on the terminal side (3) of housing does not have inlet hole, air has passed through the thickness of a filtering material (6) at least like this, filtering material (6) thickness that this thickness flows through during by first outlet opening (4) corresponding to air basically.
5. scrubber according to claim 1 and 2 is characterized in that: wherein reflux inlet (11) is arranged on first outlet opening (4) lining.
6. scrubber according to claim 1 and 2 is characterized in that: wherein scrubber be used to filter nitric oxide production.
7. scrubber according to claim 6 is characterized in that: wherein filtering material (6) is potassium permanganate KMnO
4Or with the bonded potassium permanganate of an amount of level carbon.
8. scrubber according to claim 6 is characterized in that: wherein scrubber is filled into nitric oxide production concentration less than 5ppb.
9. scrubber according to claim 1 and 2 is characterized in that: wherein particulate filter (7) is arranged in housing (1) in inlet hole (2) and first and second outlet openings (4,9) at least, spills from scrubber to stop filtering material (6).
10. scrubber according to claim 1 and 2 is characterized in that: wherein the flow velocity by first outlet opening (4) is that 1-10 liter/second and the flow velocity by second outlet opening (9) are the 0.5-50 milliliters/second.
11. scrubber according to claim 1 and 2 is characterized in that: wherein the particulate size of filtering material is in 1/8-1/128 inch scope.
12. scrubber according to claim 11 is characterized in that: the particulate size of described filtering material is in 1/32-1/64 inch scope.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE02027415 | 2002-09-16 | ||
| SE0202741A SE0202741D0 (en) | 2002-09-16 | 2002-09-16 | scrubber |
| SE02029056 | 2002-10-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1688251A CN1688251A (en) | 2005-10-26 |
| CN100335006C true CN100335006C (en) | 2007-09-05 |
Family
ID=20289002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038218569A Expired - Lifetime CN100335006C (en) | 2002-09-16 | 2003-08-21 | Scrubber |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100335006C (en) |
| SE (1) | SE0202741D0 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104257384B (en) * | 2014-09-29 | 2017-02-15 | 无锡市尚沃医疗电子股份有限公司 | Handheld suction and filtration device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2096404U (en) * | 1991-07-04 | 1992-02-19 | 邸爱亭 | Self excitation deflection scrubber |
| EP0707827A1 (en) * | 1994-10-04 | 1996-04-24 | Irad Technologies Ltd. | Fluid filtering device utilizable with gas monitors |
| WO1999057560A1 (en) * | 1998-04-30 | 1999-11-11 | Aerocrine Ab | Device for the collection, storage and/or transport of gas samples |
| EP1062909A2 (en) * | 1992-06-16 | 2000-12-27 | Natus Medical, Inc. | Filter unit for end tidal carbon monoxide concentration apparatus and method |
-
2002
- 2002-09-16 SE SE0202741A patent/SE0202741D0/en unknown
-
2003
- 2003-08-21 CN CNB038218569A patent/CN100335006C/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2096404U (en) * | 1991-07-04 | 1992-02-19 | 邸爱亭 | Self excitation deflection scrubber |
| EP1062909A2 (en) * | 1992-06-16 | 2000-12-27 | Natus Medical, Inc. | Filter unit for end tidal carbon monoxide concentration apparatus and method |
| EP0707827A1 (en) * | 1994-10-04 | 1996-04-24 | Irad Technologies Ltd. | Fluid filtering device utilizable with gas monitors |
| WO1999057560A1 (en) * | 1998-04-30 | 1999-11-11 | Aerocrine Ab | Device for the collection, storage and/or transport of gas samples |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1688251A (en) | 2005-10-26 |
| SE0202741D0 (en) | 2002-09-16 |
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