CN103328070A - Apparatus for purifying exhaust air - Google Patents
Apparatus for purifying exhaust air Download PDFInfo
- Publication number
- CN103328070A CN103328070A CN2011800541774A CN201180054177A CN103328070A CN 103328070 A CN103328070 A CN 103328070A CN 2011800541774 A CN2011800541774 A CN 2011800541774A CN 201180054177 A CN201180054177 A CN 201180054177A CN 103328070 A CN103328070 A CN 103328070A
- Authority
- CN
- China
- Prior art keywords
- liquid
- collection surface
- flow channel
- loose structure
- drop
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
- B01D45/10—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators which are wetted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/028—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by directing the gas through a wetted wire mesh or a perforated plate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Particles Using Liquids (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The present invention relates to an apparatus (2) for purifying exhaust air with a flow channel (4), through which an exhaust air flow (6) to be purified can be passed, with a liquid spraying apparatus (8) which is arranged in the flow channel (4) and with which a liquid can be sprayed into the exhaust air flow (6), with a particle separator (10) with a collecting surface (12) arranged at an angle for collecting the liquid falling as drops and/or as aerosol from the exhaust air flow (6) and with a liquid discharge apparatus (8) associated with the collecting surface (12). In order to improve the previously known apparatus for purifying the exhaust air to the extent that less water tends to exit from the apparatus at the bottom, it is proposed that the surface of the collecting surface (12) is provided entirely or partially with a material (14) with a porous structure.
Description
Technical field
The present invention relates to a kind of device of discharging air for cleaning, described device has flow channel, is arranged in liquid injection apparatus, particle separator and liquid let-off gear(stand) in the flow channel, need the discharge air stream of cleaning to pass through described flow channel by percolation, liquid can be injected in the discharge air stream by described liquid injection apparatus, described particle separator have be in tilted layout, be used for to collect with drop and/or the aerosol form collection surface from the liquid of discharging air stream and dropping out, described liquid let-off gear(stand) configures to collection surface.
Background technology
Be known that by in flow channel, spray divided gas flow, liquid or solid from discharge air stream to discharging air stream with one or more liquid by prior art.Described one or more liquid can be water or chemical substance, and gas, liquid and the solid-phase that described water or chemical substance are being transported in discharging air stream is combined (chemical reaction may occur) and can be used as subsequently larger aerosol or drop is separated more simply.The corresponding air cleaner of discharging is for example known by industrial technology, but also known by Building technology.
Described a kind of discharge air washer among the document DE202004017287U1, its role is to, discharge air venting in the extraneous air before, the discharge air that derives from mew equipment is cleaned.Be furnished with the liquid injection apparatus with nozzle in flow channel, this liquid injection apparatus is injected to liquid at discharge air cleaner run duration and discharges in the air stream.Liquid droplets and aerosol and the gas that in flow channel, transports, liquid and solids mixing and combination.So described drop and aerosol trend towards dropping out from discharge air stream for this reason.The liquid mist separator that is arranged in the liquid injection apparatus downstream can be supported the described trend that drops out, and the liquid of this place collection drips from described liquid mist separator subsequently.
In known discharge air washer, along the drippage direction away from liquid injection apparatus be furnished with particle separator.This particle separator has blade that the helical-blade sheet spirals and is used for collecting drop and aerocolloidal collection surface as what tilt, drop and aerosol at first strike on this collection surface and subsequently under Action of Gravity Field the surface via the blade of spiral discharge downwards.Therefore being in tilted layout for such purpose of this collection surface namely guaranteed the discharge of collected drop.The liquid let-off gear(stand) is positioned on the bottom of described collection surface, by this liquid let-off gear(stand), can be assembled by the liquid that collection surface is collected, and derives from discharge air washer, and flow to treating apparatus (Aufbereitung).In an illustrated embodiment, collection surface constitutes the helical blade drop current divider with planar striking face; But also possibility is designed to collection surface plastics grid or metal grate or is designed to cyclone separator.Importantly, exist on the one hand enough drops or aerosol can clash into thereon face; Also design so but then collection surface, namely still can have enough discharge passage of air to pass through flow channel.
Here naturally produced problem, namely in the medium situation of the size of collection surface, still always had liquid from device, to discharge, although and in the larger-size situation of collection surface less water discharge, the pressure loss is excessive.In the situation that continue to discharge air cleaning, described liquid can be accumulated to considerable amount, and assemble the undesirable position of this amount of liquid in building, and must be removed with significant cost individually.But owing in liquid, also comprising the material that from discharge air, remove by this liquid, for example dirt, pathogen, corrosive substance (for example ammonia or sulfur oxide) and analog, so the dirt load is born in ventilation equipment and mew place, described dirt load in no case should arrive in the mew place.For avoiding this situation, possible in theory be to lengthen particle separator, but except larger structure space demand and the infrastructure cost of raising, percolation also can increase by the pressure loss of the discharge air stream of flow channel, and this will cause the remarkable loss in efficiency of device and higher energy consumption.
Summary of the invention
Accordingly, task of the present invention is, the known device that is used for cleaning discharge air is carried out following improvement, namely trends towards so that water is still less discharged from device downwards.
Solve so described task for such device, that is, the surface by collection surface completely or partially arranges the material with loose structure.
The solution of this task is based on the recognition, namely according to the size of drop and weight and the stroke speed that has according to this drop, drop is not in the situation that possess according to design of the present invention can be forcibly just not be attached to collection surface fully when they contact first, but can spalling and consist of new drop in the mode of water spray, described new drop from collection surface throw off and under Action of Gravity Field towards the bottom motion of particle separator.If this particle separator is too short, or because the flow condition in the particle separator causes less drop no longer again to contact with collection surface, then described drop can not obtained by the liquid let-off gear(stand).By collection surface according to design of the present invention, will reduce to form the trend of splashing.
Material with loose structure refers to material closed pore or perforate, the cavity that material described closed pore or perforate has some at its cross section with distributing.Described cavity can be connected to each other at least in part and be in surrounding environment and be connected.When drop or aerosol struck on the loose structure, described drop or aerosol were no longer easily got back to from smooth surface bump and are discharged the air stream, but described drop or aerosol at first spread on the cavity of described loose structure and/or in the cavity.The formation of thus minimizing being splashed.The liquid that forms the collision drop can be expressed in the adjacent cavity by collision energy.Here, collision energy reduces at least in part, and described bump liquid is divided into each several part, and described each several part can be received by each cavity.Penetrating into each several part in each cavity no longer has enough kinetic energy and again throws off and turn back to like this from the surface of collection surface after coming in penetrating into each cavity and discharge the air stream.But by each cavity each other at least part of connection equally may, under Action of Gravity Field, discharge downwards lentamente and finally pass in the liquid let-off gear(stand) by the liquid that each cavity receives.Because drop receives and the liquid derivation preferably, it is preferred that the scheme of perforate is regarded as being worth.Like this, can avoid the saturation degree of cavity to increase because of liquid, and described cavity always become idle again, to be used for drop and the aerosol of new bump.
By this device according to design of the present invention and the liquid splash trend that reduces by following with it, the loss of liquid in the particle separator zone significantly reduces, and need not particle separator to be constructed longly or volume is larger for this reason.The pressure loss also remains on the acceptable level, and it is unwanted improving air blast power and therefore improving the energy consumption of discharging air cleaner.
According to a kind of design of the present invention, the elastic properties of materials ground with loose structure consists of." flexibly " this concept meaning herein is, this material designs like this, and namely it absorbs the impact strength that is included in the part of the kinetic energy in the droplet and relaxes thus droplet simultaneously because the energy that is contained in the collision drop is out of shape.Experiment shows, elastic plastic material especially is fit at this.Its top Compressive Strength when 40% compression
The material that is in (DIN EN ISO3386-1) in 1.5 to the 10kPa scopes is especially favourable.By the elasticity of this material, the collision of drop is weakened extraly, and the trend of splashing of bump drop reduces thus extraly.In addition, in the situation that constituent material is flexibly installed and also simplified, because elastomeric material also can very well adapt on the face of injustice, this for example needs in constituting the collection surface of helical blade.
According to a kind of design of the present invention, the material with loose structure is applied on the collection surface with the form of filling up.By this cushion material, installation is simple, described pad only need cut into hope shape and can after be connected with collection surface, for example by can be fast and generation bonding inexpensively.
According to a kind of design of the present invention, each cavity in the porous material has the hole count in 7 to 14 holes of per inch.Under this hole number, produce good in especially drop and aerocolloidal reception by described porous material.
According to a kind of design of the present invention, the material with loose structure has the thickness of 5mm to 10mm.By this thickness, only need little possible constructions space for this porous material, drop is incorporated into cavity and the liquid that will assemble in each cavity flows to the liquid let-off gear(stand) yet this thickness enough has been used for clashing into.
According to a kind of design of the present invention, the material with loose structure constitutes foaming structure.In foaming structure, each cavity is limited by the wall of very thin film-form, and the cavity share on the structure space occupied by described material is very high thus.
According to a kind of design of the present invention, the material with loose structure is made of plastics.Plastics be with low cost, can easily process and corrosion resistant, it can be provided on the chemical substance that appears in the device chemically stable, this plastic material especially can be designed as to have until the pH value is 3 acid resistance.
According to a kind of design of the present invention, collection surface is arranged in before the liquid injection apparatus along the flow direction of discharging air stream in flow channel.
What need to explicitly point out is that above-mentioned preferred design can be distinguished independent combination, but also can be combined with the content of independent claims each other by selection.
Description of drawings
Other improvement projects of the present invention and design are drawn by follow-up specific description and accompanying drawing.Now, the present invention is described in detail by embodiment.
Illustrated among Fig. 1 and be used for the device 2 that cleaning is discharged air.
The specific embodiment
Different from the present embodiment, particle separator 10 also can be arranged in the downstream of liquid injection apparatus 8, and this is especially significant in the larger situation of the flow velocity of discharging air stream 6, and the drop of the liquid of at this moment being taken out of is discharged from air stream 6 and takes away.
In particle separator 10, can see collection surface 12, in the present embodiment, by this collection surface, section of flow channel cover flow channel 4 at least near whole cross section.Because the helical form of collection surface 12 structure also must have spiral helicine trend although discharge air stream, so that can be in collection surface 12 by-pass flows, this path under any circumstance all be feasible.For under Action of Gravity Field, dropping in for the drop on the collection surface from the direction of liquid injection apparatus, spiral helicine collection surface 12 does not allow the cross section of flow channel 4 the vacancy part to occur, and drop may be in the situation that do not contact collection surface 12 by the section of particle separator 10 by this vacancy part.Realized thus, the drop of liquid under any circumstance all must produce with contact-making surface 12 and contact.In the present embodiment, described spire also only has for the required length of cross section that covers flow channel 4.Thus, the cost of the pressure loss and structure is reduced to necessary degree.
In the present embodiment, unique spire only is shown as collection surface 12, but differently therewith is, also can be set other cut apart and/or the shape structure of a plurality of spires or collection surface 12.
For above-mentioned reasons, strike the lip-deep drop of the material 14 with loose structure or aerosol and cause hardly and splash, this is because loose structure absorbs and scattered the liquid of most formation bump drops.Because collection surface 12 downward spirals, can under Action of Gravity Field, discharge downwards so strike on the material 14 and penetrate into the drop that is arranged in cavity wherein, until described drop arrives liquid let-off gear(stand) 16 and derived from flow channel 4 by this liquid let-off gear(stand).In the present embodiment, liquid let-off gear(stand) 16 comprises groove, and this groove width across flow channel 4 below collection surface 12 extends.
The invention is not restricted to above-described embodiment.Those skilled in the art are not difficult to utilize its professional knowledge in its mode of thinking fit the present invention to be changed and mate concrete design objective at this, and he can not avoid using content of the present invention thus at this.
Claims (8)
1. be used for the device (2) that cleaning is discharged air, described device has flow channel (4), be arranged in the liquid injection apparatus (8) in the flow channel (4), particle separator (10) and liquid let-off gear(stand) (8), need the discharge air stream (6) of cleaning to pass through described flow channel by percolation, liquid can be injected in the discharge air stream (6) by described liquid injection apparatus, described particle separator has and is in tilted layout, be used for to collect with drop and/or the aerosol form collection surface (12) from the liquid of discharging air stream (6) and dropping out, described liquid let-off gear(stand) configures to collection surface (12), it is characterized in that, the surface of collection surface (12) completely or partially is provided with the material (14) with loose structure.
2. device according to claim 1 (2) is characterized in that, described material (14) with loose structure flexibly consists of.
3. device according to claim 1 and 2 (2) is characterized in that, described material (14) with loose structure is applied on the collection surface (12) with the form of filling up.
4. according to each or multinomial described device (2) in the claims, it is characterized in that, each cavity in the described material (14) with loose structure has the hole count in 7 to 14 holes of per inch.
5. according to each or multinomial described device (2) in the claims, it is characterized in that, described material (14) with loose structure has the thickness of 5mm to 10mm.
6. according to each or multinomial described device (2) in the claims, it is characterized in that, described material (14) with loose structure constitutes foaming structure.
7. according to each or multinomial described device (2) in the claims, it is characterized in that, described material (14) with loose structure is made of plastics.
8. according to each or multinomial described device (2) in the claims, it is characterized in that, collection surface (12) is arranged in liquid injection apparatus (8) before along the flow direction of discharging air stream (6) in flow channel (4).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202010015267U DE202010015267U1 (en) | 2010-11-11 | 2010-11-11 | Device for cleaning exhaust air |
| DE202010015267.4 | 2010-11-11 | ||
| PCT/EP2011/005632 WO2012062465A1 (en) | 2010-11-11 | 2011-11-09 | Apparatus for purifying exhaust air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103328070A true CN103328070A (en) | 2013-09-25 |
Family
ID=43706007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800541774A Pending CN103328070A (en) | 2010-11-11 | 2011-11-09 | Apparatus for purifying exhaust air |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2637762A1 (en) |
| JP (1) | JP2014500790A (en) |
| KR (1) | KR20130110188A (en) |
| CN (1) | CN103328070A (en) |
| DE (1) | DE202010015267U1 (en) |
| WO (1) | WO2012062465A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566720B (en) * | 2012-07-20 | 2015-06-10 | 中国石油化工股份有限公司 | Ammonia method flue gas desulfurization apparatus |
| CN104083977B (en) * | 2014-07-01 | 2016-06-15 | 安徽清溪环保科技有限公司 | A kind of environmental protection and energy saving spraying and dedusting degraded equipment |
| CN110318849A (en) * | 2019-06-21 | 2019-10-11 | 东莞理工学院城市学院 | The particle separator of water jet absorption diesel engine vent gas in a kind of helix tube |
| CN114867545A (en) * | 2020-07-21 | 2022-08-05 | 富士电机株式会社 | Exhaust gas treatment device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3444670A (en) * | 1965-06-21 | 1969-05-20 | Ernest C Hungate | Apparatus for treating gas |
| WO2003011429A1 (en) * | 2001-07-27 | 2003-02-13 | Arben Vrapi | The filtration of industrial fumes |
| DE102008004144A1 (en) * | 2007-01-15 | 2008-07-17 | Anemos Co. Ltd. | Gas-liquid contact system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3522692A (en) * | 1968-01-23 | 1970-08-04 | Dustex Corp | Gas scrubber |
| DE202004017287U1 (en) | 2004-11-05 | 2005-01-20 | Big Dutchman International Gmbh | Device for treating at least one guided through a flow channel gaseous medium |
-
2010
- 2010-11-11 DE DE202010015267U patent/DE202010015267U1/en not_active Expired - Lifetime
-
2011
- 2011-11-09 KR KR1020137013864A patent/KR20130110188A/en not_active Application Discontinuation
- 2011-11-09 JP JP2013538103A patent/JP2014500790A/en active Pending
- 2011-11-09 CN CN2011800541774A patent/CN103328070A/en active Pending
- 2011-11-09 EP EP11790725.3A patent/EP2637762A1/en not_active Withdrawn
- 2011-11-09 WO PCT/EP2011/005632 patent/WO2012062465A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3444670A (en) * | 1965-06-21 | 1969-05-20 | Ernest C Hungate | Apparatus for treating gas |
| WO2003011429A1 (en) * | 2001-07-27 | 2003-02-13 | Arben Vrapi | The filtration of industrial fumes |
| DE102008004144A1 (en) * | 2007-01-15 | 2008-07-17 | Anemos Co. Ltd. | Gas-liquid contact system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012062465A1 (en) | 2012-05-18 |
| DE202010015267U1 (en) | 2011-03-03 |
| KR20130110188A (en) | 2013-10-08 |
| EP2637762A1 (en) | 2013-09-18 |
| JP2014500790A (en) | 2014-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130925 |