EP2877265A1 - Installation de filtration de gaz sortants - Google Patents

Installation de filtration de gaz sortants

Info

Publication number
EP2877265A1
EP2877265A1 EP13759428.9A EP13759428A EP2877265A1 EP 2877265 A1 EP2877265 A1 EP 2877265A1 EP 13759428 A EP13759428 A EP 13759428A EP 2877265 A1 EP2877265 A1 EP 2877265A1
Authority
EP
European Patent Office
Prior art keywords
filter device
filter
exhaust
exhaust gases
channel
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.)
Withdrawn
Application number
EP13759428.9A
Other languages
German (de)
English (en)
Inventor
Wigand Fitzner
Klaus DÖGE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FRITZMEIER UMWELTTECHNIK GMBH & CO. KG
Original Assignee
TZ Technisches Zentrum Entwicklungs- & Handelsgesellschaft mbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE102012111862.0A external-priority patent/DE102012111862B4/de
Application filed by TZ Technisches Zentrum Entwicklungs- & Handelsgesellschaft mbH filed Critical TZ Technisches Zentrum Entwicklungs- & Handelsgesellschaft mbH
Publication of EP2877265A1 publication Critical patent/EP2877265A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0038—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions with means for influencing the odor, e.g. deodorizing substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
    • B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
    • B01D46/0047—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for discharging the filtered gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/4263—Means for active heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/116—Molecular sieves other than zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40001—Methods relating to additional, e.g. intermediate, treatment of process gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications

Definitions

  • the invention relates to an exhaust filter apparatus for filtering out contaminants (e.g., odors) from exhaust gases, e.g. for use in the odor neutralization of waste gases produced in wastewater treatment or other processes.
  • contaminants e.g., odors
  • Exhaust gas filter devices generally comprise a filter unit, wherein exhaust gases to be filtered are passed through the filter unit and thereby filtered.
  • a filter unit can filter out solids from a gas flow, for example by means of mechanical action.
  • a filter unit can bind a significant amount of noxious gases by absorption or adsorption until its capacity is exhausted and breakdown of noxious gases occurs. It can be provided, for example, that in an absorption phase by means of a suitable liquid, the component to be removed from the gas stream "washed" or “stripped” (with steam instead of liquid) is.
  • the components of the component to be removed may be selectively bound - usually in granulate beds (eg, molecular sieves or activated charcoal) or by mats coated with adsorbents.
  • Physical and chemical binding forces are the determining parameters, whereby the effectiveness of the bonds depends eg on the gas temperature, the gas humidity and the pressure.
  • biological components eg microorganisms
  • this can lead to the extent that the biological components supply the determining forces and dominate the physical or chemical processes.
  • the filter unit can be embodied, for example, as a biological filter unit, wherein microorganisms (eg fungi or bacteria) use substances to be filtered out, which are contained in the exhaust gas stream, as nutrients - ie metabolise - and thereby degrade them.
  • the filter unit has a limited filter capacity. Since an exchange of the used filter unit is displayed against an unused filter unit as soon as the filter unit used has lost its filtering effect at one position (even if the filter effect is still present at other positions thereof), with a uniform distribution of the contaminants to be filtered out in the exhaust gases for As complete as possible utilization of this filter capacity over the filter unit across uniform load with the contaminants and over the filter unit of time uniform filter activity or filter rate advantageous.
  • the invention provides a versatile and compact executable exhaust filter device with a straightforward structure, by means of which an effective utilization of the filter capacity of a filter device of the exhaust gas filter device is made possible.
  • an exhaust gas filter device for filtering out contaminants, e.g. Odors, provided from exhaust gases, which has a filter device for filtering the exhaust gases.
  • the exhaust gas may e.g. Exhaust air laden with contaminants in the form of noxious gases.
  • the exhaust filter device is particularly intended for outdoor use.
  • the exhaust gas filter device is designed in such a way that the exhaust gases to be filtered enter the filter device at a filter entry surface of the filter device, flow through the filter device at a throughflow rate and thereby be filtered or cleaned, and the filtered exhaust gases exit at a filter exit surface of the filter device exit the filter device.
  • the exhaust filter device has a distribution channel for distributing the exhaust gases to be filtered along the filter entry surface and a collection channel for collecting the filtered exhaust gases exiting the filter exit surface.
  • the collecting channel is formed with a cross section increasing in the flow direction of the exhaust gases flowing through it (or along the longitudinal direction of the collecting channel), wherein the collecting channel can be formed, for example, with a continuous (eg uniform) or stepwise increasing cross-sectional area along its entire length.
  • the collecting channel is formed with a cross section that increases uniformly along its entire length in such a way that a (constant) opening angle between 2 ° and 10 ° is enclosed by the side walls of the collecting channel along the direction of flow.
  • the distribution channel is formed with a decreasing in the flow direction of the exhaust gas flowing through it (or along the longitudinal direction of the distribution channel), wherein the distribution channel, for example, with a continuous (eg evenly) or gradually decreasing over its entire length cross-sectional area can be trained.
  • the distribution channel with a uniformly decreasing in the flow direction along its entire length cross-section designed such that a (constant) opening angle between 2 ° and 10 ° is enclosed by the side walls of the distribution channel along the flow direction.
  • it can also be provided to form the distribution channel with the formation of the collection channel with a cross section increasing in the flow direction of the exhaust gases, with a constant or increasing cross-section in the flow direction of the exhaust gases flowing through it.
  • the collecting channel and / or the distribution channel With spatially varying cross-sections as described above, a homogenization of the throughflow velocities present across the filter inlet face (ie the flow velocity, ie the flow velocity) of the collecting channel and the distribution channel with a spatially constant cross section with which the exhaust gases flow through the filter device) achieved; wherein the flow characteristic (resulting from the geometry of these channels) of the exhaust gas filter device can be adjusted such that the exhaust gases flow through the filter device over the entire filter device or over the entire filter inlet surface at (substantially) the same flow rate.
  • the collecting channel and / or the distribution channel with a varying cross section as described above are even in training these channels with a small cross-sectional area a uniform flow rate can be realized, creating a compact (ie space-saving) and at the same time effective exhaust filter device is made possible.
  • the spatial equalization of the flow rate is achieved, for example, by increasing the volume of the collecting channel in the collecting channel with increasing volume of the collected filtered exhaust gases.
  • the variation of the cross section of the collecting channel and / or of the distribution channel can be effected, for example, by means of a shaped body arranged in the flow path of the exhaust gases.
  • the distribution channel and the collecting channel can be designed with a small cross-section while maintaining a small spatial variation of the throughflow velocity.
  • the cross-sectional area (e.g., the average or maximum value of the cross-sectional area) of the distribution channel and / or the cross-sectional area (e.g., the average or maximum cross-sectional area) of the collection channel is less than 5% of the filter entry area.
  • the formation of the collecting channel and / or the distribution channel with an opening angle of 3 ° has proven to be particularly advantageous.
  • the exhaust filter device can (by means of a corresponding design of the collecting channel and / or of the distribution channel) e.g. be formed such that the flow rates at all positions of the filter entry surface have a maximum deviation of 30%, 20% or even 10% of the (average, obtained by averaging over the filter entrance surface away) average of this mean.
  • the exhaust gas filtering device may include a housing having an inlet for receiving the exhaust gases to be filtered and an outlet for discharging the filtered exhaust gases, the exhaust filter device further comprising an inflow channel extending from the inlet opening to the filter inlet surface for supplying the exhaust gases to be filtered to the filter device may have from the filter outlet surface to the outlet opening extending discharge channel for discharging the filtered exhaust gases from the filter device.
  • the distribution channel is that portion of the inflow channel along which the exhaust gases to be filtered are distributed across the filter entry surface and enter the filter device. wherein the filter entry surface in this section, for example, can define or form a (permeable) boundary surface of the inflow channel.
  • the distribution channel may be a partial section of the inflow channel or be identical to the inflow channel.
  • the collection channel is that portion of the outflow channel along which the filtered exhaust gases exiting the filter exit surface exit and collect from the filter device, wherein the filter exit surface in this section may define or form, for example, a (permeable) confinement surface of the outflow channel ,
  • the collecting channel may be a partial section of the outflow channel or be identical to the outflow channel.
  • the exhaust filtering device may include an air conveying device (e.g., a fan or a blower) for conveying the exhaust gases through the filter device.
  • the air conveying device may e.g. be arranged at the inlet opening of the housing, whereby the use of the heat loss of the air conveyor device for heating the exhaust gases is made possible.
  • the filter means is provided with microorganisms for decomposing the contaminants (e.g., filled).
  • the filter device may e.g. an activated carbon layer (e.g., in the form of an activated carbon mat) for receiving the contaminants to be filtered out, wherein the activated carbon layer may be filled with the microorganisms.
  • an activated carbon layer e.g., in the form of an activated carbon mat
  • the filter means may also comprise other filter materials or mats (e.g., microorganized), e.g.
  • the respective filter mats can also be arranged in multiple layers.
  • the component separation from the gas stream can also take place simultaneously in a complex, absorptive, adsorptive and biological manner.
  • the exhaust gas filter device also has a heating device for heating the exhaust gases to be filtered.
  • a heating device for heating the exhaust gases to be filtered.
  • the relative humidity can be measured without condensation.
  • ability of the exhaust gases are lowered before entering the same in the filter device, whereby, for example, a deposition of water or moisture can be effectively suppressed at the filter device.
  • the moisture present in the region of the microorganisms or microbes can also be regulated when the filter device is designed as a biological filter device with microorganisms.
  • the heating device can be designed, for example, such that it heats the exhaust gases to be filtered before they enter the filter device to a predetermined temperature, for example within the metabolization temperature range of the microorganisms (ie within the temperature range in which the microorganisms capable of metabolizing the contaminants).
  • the heating device may be designed such that it heats the exhaust gases to be filtered in such a way that the resulting (relative) humidity of the exhaust gases lies within the metabolisation moisture range of the microorganisms (ie within the moisture range in which the microorganisms for metabolizing - being capable of contaminants).
  • the exhaust gas filter device can in particular be configured without a cooling device for cooling the exhaust gases, for example, provided for condensing and separating liquid; whereby, for example, an energy-intensive reheating of the exhaust gases before entry into the filter device can be avoided.
  • Organisms on the filter device a correspondingly uniformed filter rate, whereby an effective use of the filter capacity of the filter device is additionally supported.
  • the heating device it can also be ensured that the microorganisms can always be kept within their metabolization temperature range independently of the ambient conditions or outside temperatures present outside the exhaust gas filter device, as a result of which the exhaust gas filter device can be used in a variety of ways largely independent of the external ambient conditions.
  • the heater may be an unregulated heater, i. a heating device with non-variable heating power (for example, when the temperature of the exhaust gases to be filtered and / or the outside temperature at the site have a sufficiently small fluctuation).
  • the heating device can also be an adjustable heating device, wherein the heating power (for example, based on the output value of a positioned in the flow path of the exhaust gases to be filtered temperature sensor and / or humidity sensor) is variably adjustable.
  • the heater may also be provided for direct heating of the filter means (e.g., in direct contact therewith).
  • the heating device is arranged in the flow path of the exhaust gases to be filtered, ie with respect to the flow direction in front of the filter device. According to this embodiment, only the exhaust gases to be filtered need to be tempered by the heater (and not for example the entire exhaust filter device).
  • the heating device may, for example, be arranged in the distribution channel and may, for example, be in contact with the filter device (in this case, direct heating of the filter device and thus eg the microorganisms is possible by means of the heating device). Alternatively or additionally, it may also be provided to arrange a heating element of the heating device at the outlet of the air conveying device (or at the inlet of the inflow channel).
  • the heating device can be arranged and designed in such a way that it can be supplied by way of a complete flow cross-section. Cut the exhaust gases away - for example over a complete cross-sectional area of the inflow channel, in particular the distribution channel, away - a spatially uniform heat input per area is generated (ie the heating power is not varied locally).
  • the heating device is an electrically operated heating device.
  • it may be provided to form the heating device in the form of a metallic heating network or in the form of a capillary tube mat (the capillary tube mat can form a closed water cycle, for example, the water of the water cycle being electrically temperature-controlled).
  • the exhaust filter apparatus may further include a flow path of the filtered exhaust gases, i. with respect to the flow direction after the filter device (for example in the collecting channel) arranged heating element, said heating element may be formed analogous to the arranged with respect to the flow direction in front of the filter device Schuvorrich-.
  • the exhaust filter device has at least one support grid for holding the filter device, wherein the filter device or at least a portion of the filter device is releasably attached to the support grid to form a package and the package thus formed is pivotally mounted about a horizontal axis.
  • the filter device or a section of the filter device, for example a filter mat
  • the heating device or a heating element of the heating device
  • a support grid as a package may be provided, in particular when designing the filter device with a polygonal horizontal cross section this package (possibly after opening the housing of the exhaust filter device) is pivotable about a horizontally extending, arranged at the lower end portion of the package axis around.
  • the distribution channel is designed and arranged such that the exhaust gases to be filtered flow in the distribution channel along the filter entry surface prior to their entry into the filter device, i. the flow direction of the exhaust gases to be filtered extends (substantially) parallel to the filter entry surface.
  • the distribution channel may be arranged with its longitudinal direction running along (or substantially parallel to) the filter entry surface.
  • the collection channel may be configured and arranged such that the filtered exhaust gases, after exiting the filter device, flow in the collection channel along the filter exit surface, i. the flow direction of the filtered exhaust gases is (substantially) parallel to the filter exit surface.
  • the collection channel may be arranged with its longitudinal direction along (or substantially parallel to) the filter exit surface extending.
  • the filter device with a given total volume of the exhaust filter device, effective space utilization with a large filter area can be enabled.
  • a closed circumferential contour e.g., in the form of a hollow cylinder
  • an activated carbon mat is rolled up into a hollow cylinder, wherein the interior of the filter device acts as a distribution channel or collecting channel and connects to the outside of the filter device of the respective other channel.
  • the filter device, the distribution channel, the collecting channel and the heating device are arranged in a housing, wherein at least a part of the outer wall of the housing or the entire outer wall of the housing has a thermal insulation.
  • the exhaust filter device is thermally insulated to the outside, the temperature control of the exhaust gases by means of the heater (substantially) can be independent of the outside temperature, so that the heater can be configured as an unregulated heater, for example.
  • the heat insulation moreover, the freezing of moisture condensing on the wall of the housing can be prevented.
  • the thermal insulation helps to even out the temperature of the exhaust gases to be filtered by reducing the thermal coupling or heat losses to the outside environment.
  • the Abgasfiltervornchtung can also be isolated by means of a fluidic shield against external weather conditions.
  • the fluidic shielding can be realized, for example, by arranging the outlet opening, through which the filtered exhaust gases escape from the exhaust gas filter device (eg at such a height) and formed (eg with such a cross-sectional area), that the overpressure of the filtered exhaust gases at the outlet opening is greater than the wind pressure at the level of the outlet opening, and thus from the exiting through the outlet exhaust gases a fluidic shielding of the Abgasfiltervorrich- device is formed.
  • the housing can be closed at the top in such a way that the penetration of rainwater is reliably prevented.
  • the housing can be designed in such a way that any accumulating condensation on the outer jacket or the outer wall of the housing can run off (and escape from the housing through apertures provided for this purpose, for example).
  • the exhaust gas filter device can be designed as an independent, freestanding stand cell or filter cell. However, it can also be provided to integrate the exhaust filter device in a building, wherein parts of the exhaust filter device of the building or of components that are already present on or in the building, and the exhaust filter device and the building so at least partially integral with each other are formed. By integrating the exhaust filter device into a building by utilizing already existing building components, the exhaust filter apparatus can be realized and integrated into the building at a low cost (in particular at a lower cost than in the self-standing stand-alone configuration).
  • the same filtering means eg, microorganism-equipped filtering means / charcoal mats
  • supporting grilles and / or heaters may be used as in a freestanding standing cell; wherein, for example, the filter device, the support grid and a heating device with the formation of a filter pack or filter stack (releasably) can be interconnected.
  • These filter packages can advantageously be arranged in a building with distribution channel and collecting channel.
  • the functions of the housing, the roof hood, the inlet opening, the outlet opening, the air conveyor (where appropriate, the natural train, for example based on temperature or altitude differences natural air flow, can be exploited) and / or the thermal insulation layer of the exhaust filter device are wholly or partly taken over by appropriate components of a building.
  • Such buildings can be, for example, production halls, remodeling facilities producing waste gas, animal houses, etc. Some of these buildings already have fans, air conditioners, heat sources, sufficient heat insulation, etc., which already meet the applicable regulations (eg TA Lärm). The not yet fulfilled by the building functions of the exhaust filter device must be supplemented appropriately.
  • the collecting channel between a wall -. a vertical wall (e.g., an outer wall or partition wall) or roofing of the building and the filter exit surface, and / or the distribution channel is formed between a wall of the building and the filter entry surface.
  • the distribution channel becomes a (relatively large) space or is formed by a space of the building from which the exhaust air to be filtered flows directly into the filtering device (e.g., provided with microorganisms).
  • FIG. 1 schematically shows a sectional illustration of an exhaust gas filter device with a distribution channel and a collecting channel with a constant cross section, a sectional illustration of a further exhaust gas filter device with a distribution channel and a collecting channel with a constant cross section, a sectional illustration of an exhaust gas filter device according to an embodiment
  • FIG. 3b shows a sectional view of an exhaust gas filter device according to a further embodiment
  • Figure 4a is a sectional view of an exhaust filter device according to another
  • Figure 4b is a sectional view of an exhaust filter device according to another
  • Figure 4c is a sectional view of an exhaust filter device according to another
  • FIG. 4d is a sectional view of an exhaust gas filter device according to another
  • FIG. 4e is a sectional view of an exhaust gas filter device according to another
  • FIG. 5 is a sectional view of an exhaust filter device integrated inside a building according to an embodiment
  • FIG. 6 shows a sectional illustration of an exhaust gas filter device integrated inside a building according to a further embodiment
  • FIG. 7 is a sectional view of an exhaust filter device integrated externally on a building according to an embodiment
  • FIG. 8 is a sectional view of an exhaust filter device integrated with a building according to a further embodiment.
  • FIGS. 1a and 1b illustrate, for comparison purposes, an exhaust gas filter device 1 with a distribution channel and a collecting channel, wherein the distribution channel and the collecting channel each have a constant, spatially uniform cross section.
  • Figures 2 to 8 each illustrate different embodiments of an exhaust filter device 1 according to the invention, wherein the distribution channel and / or the collecting channel are formed with a spatially varying cross-section.
  • the exhaust gas filter device 1 has a housing 3 with an inlet opening 5 for receiving exhaust gases to be filtered and an outlet opening 7 for emitting filtered exhaust gases, the outlet opening 7 being provided with an outlet grille as an example (eg for protection against the exhaust gas) Penetration of impurities).
  • FIGS. 1a housing 3 with an inlet opening 5 for receiving exhaust gases to be filtered and an outlet opening 7 for emitting filtered exhaust gases, the outlet opening 7 being provided with an outlet grille as an example (eg for protection against the exhaust gas) Penetration of impurities).
  • FIGS. 1a housing 3 with an inlet opening
  • the exhaust gas filter device 1 is formed by means of a corresponding design of the housing 3 as a rain-proof standing cell and provided for outdoor use; the housing eg a Has roof section or a roof cap 4, which is designed such that the penetration of rainwater is reliably prevented.
  • the vertical direction or the perpendicular direction runs along the z-direction of the xz-coordinate system shown by way of example in FIGS. 1a, 2.
  • the exhaust gas filter device 1 is integrated in each case in a building 45.
  • the exhaust gas filter device 1 in each case has a filter device 9 for filtering out contaminants in the form of odor substances from the exhaust gases, wherein the exhaust gases to be cleaned enter the filter device 9 at a filter inlet surface 11 of the filter device 9, flow through the filter device 9 and on a filter exit surface 13 from the filter device 9 exit.
  • the filter device 9 consists of one or more activated carbon mats 9, which are filled with microorganisms for degrading the contaminants.
  • the exhaust gas filter device 1 has a distribution channel 15 for distributing the exhaust gases to be filtered along the filter entry surface 11 and a collection channel 17 for collecting the filtered exhaust gases exiting at the filter exit surface 13.
  • the flow path of the exhaust gases is illustrated partially schematically in the figures by means of a flow arrow 19.
  • the exhaust gases are conveyed into the housing 3 and through the filter device 9 by means of an air conveying device 21 arranged at the inlet opening 5 in the form of a ventilator 21.
  • the activated carbon mats 9 are fastened to a support grid 23 (eg a wire grid), wherein the support grid 23 according to FIGS. 1 a to 4 e is arranged downstream of the filter device 9 in the flow direction.
  • a support grid 23 eg a wire grid
  • the filter device 9 is pressed by the flow pressure of the exhaust gases against the support grid 23 and thus reliably held on the same.
  • the activated carbon mat 9 is fastened to the support grid 23.
  • one of the activated carbon mat 9 with respect to the flow direction upstream support grid may be provided, which is arranged in the flow direction in front of the activated carbon mat 9 (eg such that the activated carbon mat 9 is clamped between the upstream and downstream support grids).
  • the exhaust filter device 1 also has a heater 25 for heating the exhaust gases to be filtered.
  • the heating device 25 is arranged in the flow path of the exhaust gases to be filtered with respect to the flow direction in front of the filter device 9 in the distribution channel 15, for example on the filter entry surface 11 in direct contact with the filter device 9.
  • the heating device 25 is designed such that it a uniform heating power is provided over its entire surface, wherein the heater 25 spans as an example the entire filter inlet surface 11 and thus allows a temperature control of the entering into the filter device 9 exhaust gases on a spatially over the entire filter inlet surface 11 away uniform temperature.
  • the heating device 25 is designed as an electric heater, here as an example in the form of a metallic heating network with heating wires.
  • the heating device 25 may also be provided to carry out the heating device 25 as a capillary tube heating element.
  • one or more (e.g., electric) heating elements may be disposed at the inlet 5 and at the outlet of the fan 21, e.g. to be in it; However, this is - at least when using only such a heating element - a good homogenization of the air temperature required.
  • uniform heating of the entire exhaust gas flow to be filtered is possible in such a way that the living conditions and metabolizing conditions (temperature and relative humidity) necessary for the microbes or microorganisms are maintained.
  • a support grid 23 and a heating element of the heater 25 are formed as a package, said package in the embodiments of Figures 2 to 4e after opening the housing 3 about a horizontally extending, at the lower end portion of Package arranged axis (not shown) is pivotable around, whereby an easy replacement of the filter device 9 can be done by the package is pivoted from a vertical orientation in a horizontal orientation or folded outwards and then the filter device 9 is replaced ,
  • the housing 3 has a thermal insulation or thermal insulating layer 27 on its outer wall.
  • the heat insulation 27 prevents the freezing of condensate on the outer wall of the housing 3 and thus the formation of ice in the interior of the exhaust filter device 1.
  • the exhaust gas filter device 1 is formed (by means of a corresponding design of the air conveying device 21 and the heat insulation 27) in such a way that the activated carbon mats 9 are largely thermally decoupled from the outside environment.
  • the shielding of the filter device 9 against the (usually too low) outside temperatures except on the isolati- on 27 by a fluidic shield by the outlet opening 7 is formed with such an outlet cross-section that the pressure of the exhaust gases at the outlet opening 7 is greater than the wind pressure at the level of the outlet opening 7.
  • the housing 3 is designed such that on the inside of the outer wall of the housing 3 accumulating condensate can escape from the housing 3 by means of a condensate drain, for example, flow down and through designated drain holes through from the housing 3 can be discharged.
  • the heat insulation 27 may limit or prevent the use of solar heat acting on the housing 3 (eg in summer) to heat the exhaust gases, so that it may also be provided to form the exhaust filter device 1 without heat insulation - in this case the exhaust filter device 1 may have one or more Whirl generators (not shown), by means of which warmer and colder gas components mixed together and so the heat transfer can be improved, so that a uniform temperature can be ensured within the exhaust gases.
  • the exhaust gas filter device 1 has an inlet channel 29 running from the inlet opening 5 to the filter inlet surface 11 for supplying the exhaust gases to be filtered to the activated carbon mat 9 and a discharge channel 31 extending from the filter outlet surface 13 to the outlet opening 7 for discharging the filtered exhaust gases from the Activated carbon mat 9 on.
  • the distribution channel 15 is that portion of the inflow channel 29, along which the exhaust gases to be filtered are distributed over the filter entry surface 11 (and along which the filter entry surface 11 forms a boundary surface of the inflow channel 29).
  • the collecting channel 17 is that portion of the outflow channel 31, along which the filtered exhaust gases emerging at the filter exit surface 13 are collected (and along which the filter exit surface 13 forms a boundary surface of the discharge passage 31).
  • the distribution channel 15 is identical to the inflow channel 29 and the collecting channel 17 is a partial section of the outflow channel 31;
  • the distribution channel 15 is a partial section of the inflow channel 29 and the collecting channel 17 is a partial section of the outflow channel 31.
  • the exhaust-gas filter device 1 according to the embodiments according to FIGS. 1 a to 4 e can be arranged in the horizontal plane perpendicular to the z-axis or height direction with a, e.g. may be formed rectangular or round cross-section, may e.g. be rotationally symmetric with respect to their height direction.
  • a round design of the exhaust filter device 1 the activated carbon mat or the activated carbon mats 9 can be laid with their long side in the circumferential direction with staggered joints.
  • the distribution channel 15 is designed such that the exhaust gases to be cleaned each flow along at least part of the filter inlet surface 11 prior to their entry into the filter device 9; moreover, the collecting channel 17 is designed such that the cleaned exhaust gases after emerging from the filter device 9 along at least a portion of the filter outlet surface 13 to flow.
  • a large part of the total volume of the exhaust filter device 1 can be filled by the filter elements or activated carbon mats 9 and thus a - as far as the total volume of the exhaust filter device - the largest possible active filter area are provided.
  • the exhaust gas filter device 1 is designed in such a way that the exit speed with which the filtered exhaust gases exit from the outlet opening 7 is sufficiently large (but not too large, since otherwise excessive noise generation may occur).
  • the exhaust gas filter devices 1 according to FIGS. 1 a and 1 b are designed such that the flow of current through the filter device or activated charcoal mat 9 takes place from the inside to the outside, the distribution channel 15 being arranged between two activated carbon mat strips. 9 (or between two sections of the filter inlet surface 11) and the collecting channel 17 between the filter outlet surface 13 and a portion of the outer wall or peripheral wall of the housing 3 is formed. According to FIGS. 1 a and 1 b, both the distribution channel 15 and the collecting channel 17 are formed with a constant cross-section along the flow direction of the exhaust gases (or along their longitudinal direction parallel to the z-direction).
  • the exhaust gas filter devices according to FIGS. 1 a and 1 b differ in that in the exhaust gas filter device 1 according to FIG.
  • the outlet opening 7 is arranged in the upper end section or roof area whereas the outlet opening 7 is arranged in the lower end section or bottom area according to FIG is and thus in these two exhaust filter devices a different flow guidance and thus also a different mixing of the filtered exhaust gases with the ambient air (with dilution of the residues) is present.
  • a greater flow velocity can be made possible, but the lance emerging at the outlet opening 7 is more at the level of the human nose.
  • the exhaust gas filter device 1 is formed by means of the formation of the distribution channel 15 and / or the collecting channel 17 with a spatially varying cross section such that a very uniform velocity distribution of the flow velocity (ie the flow velocity with which the exhaust gases flow through the filter device) is present over the entire surface of the activated carbon mat 9 or over the entire filter inlet surface 11.
  • the distribution channel 15 is formed with a constant cross section, whereas the cross section of the collecting channel 17 along the flow direction of the exhaust gases flowing through it is varied such that the collecting channel along this direction has an opening angle of 3 °.
  • the collecting channel 17 is formed with a uniformly increasing cross section along its entire length (in the flow direction of the exhaust gases flowing through it), the variation of the cross section of the collecting channel 17 being effected by means of a shaped body 33 arranged in the flow path of the exhaust gases.
  • the shaped body 33 has a triangular cross-section in a vertical section (ie, parallel to the xz plane according to the coordinate system illustrated in FIG. 2). cut and can be formed, for example, as a pyramid, prism, cone or truncated cone.
  • the shaped body 33 may be formed, for example, as a pyramid with a triangular, square, rectangular or generally polygonal base surface; wherein the formation is advantageous as a pyramid with a polygonal base, in particular in cases in which the filter elements or activated carbon mats 9 - for example, for weight reasons - are divided.
  • the current flow through the activated carbon mat 9 extends from the outside in, the distribution channel 15 being formed between the filter inlet surface 11 and a section of the wall of the housing 3, and the collecting channel 17 between the filter outlet surface 13 and a side surface of the molded body 33 is formed.
  • the ventilator 21 has a vertical axis and is designed without a volute casing (in which condensate could collect).
  • the fan 21 has a radial impeller and a downstream bladed or unbladed diffuser, wherein the bladed diffuser acts as a stator.
  • the bladed diffuser acts as a stator and the diffuser adjoining the diffuser, the flow entering the fan 21 is retarded and evened out.
  • a condensate drain 39 is illustrated in FIG.
  • the distribution channel 15 is designed with a cross-section decreasing in the flow direction of the exhaust gases flowing through it, the collecting channel 17 having a cross-section increasing along the flow direction of the exhaust gases flowing through it; wherein the cross-sectional variation of these two channels is realized by arranging the filter means in the form of the activated carbon mat 9 at an angle (i.e., not parallel) to the peripheral wall of the housing 3.
  • FIG. 3b illustrates an exhaust gas filter device 1 with an outwardly-extending flow guide, wherein the collection channel 17 is formed with a step-increasing cross-section by means of a shaped body 35, which is rectangular in the illustrated vertical section.
  • FIGS. 4a to 4e illustrate further possibilities of forming the sam- melkanals 17 with a cross-sectional along the direction of flow by means of a design of the housing 3 (Fig. 4a, 4d, 4e) and the heat insulation 27 (Fig. 4c) with a corresponding shape and / or by means arranged in the flow path of the exhaust body molding 33 with a corresponding shape ( Figure 4b);
  • the distribution channel 15 is also formed by means of a shaped body 33 with a decreasing cross section.
  • a heating element 37 arranged at the entrance of the distribution channel 15 is provided.
  • the (maximum) cross section of the collecting channel and the (maximum) cross section of the distribution channel are smaller than 5% of the surface of the activated carbon mat 9 or of the filter inlet surface 11.
  • FIGS. 5 to 8 illustrate embodiments according to which the exhaust filter device 1 is integrated into a building 45, wherein for the exhaust filter device 1 in particular no separate housing is required and realized the functions of thermal insulation, temperature control and air delivery at least partially by means of the building 45 are.
  • the building 45 has inter alia a roof 41 with a thermal insulating layer and a building wall 42, wherein the roof 41 and the building wall 42 form a building space 44.
  • a filter device 9 a heating device 25 and a support grid 23 are connected together to form a filter pack 40.
  • the collecting channel 17 is in each case formed with an increasing cross-section in the flow direction of the exhaust gases flowing through it.
  • the filter packs 40 are mounted by means of a bracket 43 on the roof 41 of the building 45, that the collecting channel 17 between the inside of the roof 41 and the filter outlet surface 13 is formed.
  • the filter packs 40 are attached to the wall 42 by means of a holder 43 such that the collecting channel 17 is formed between the inside of the wall 42 and the filter outlet surface 13.
  • the filter pack 40 is attached to the wall 42 such that the distribution channel 15 is formed between the outside of the wall 42 and the filter entry surface 11.
  • the filter packs 40 are arranged under a roof hood 4 of the building 45 such that the collecting duct 17 is formed between the roof hood 4 and the filter outlet surface 13.
  • the distribution channel 15 is formed by the space 44 of the building 45.
  • the cross-section of the collecting channel in the flow direction increases suitably, it is possible to achieve a very uniform velocity distribution over the filter surface. Therefore, the arrangement of the filter packs 40 in the interior of the building 45 (in particular according to FIG. 6) is significantly more advantageous. In addition, the filter packs 40 are secured against wanton damage.
  • the filter pack 40 is attached to the outside of the building 45 (as for example in accordance with FIG. 7), greater expenditures for achieving a uniform speed distribution over the width result. If the heat in the building is large, the natural draft may be sufficient and no fan must be installed ( Figures 7, 8). In Figure 8, the filter packs are integrated directly into the roof 41. Depending on the task with regard to the exhaust gas volume flow, the service life of the filter packs or filter cells, etc., one, two or more filter packs can be arranged.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Treating Waste Gases (AREA)
  • Separation Of Gases By Adsorption (AREA)

Abstract

L'invention concerne une installation de filtration de gaz sortants pour éliminer les polluants contenus dans lesdits gaz sortants, comportant : un dispositif de filtration pour la filtration des gaz sortants, les gaz sortants pénétrant dans le dispositif de filtration par une surface d'entrée de filtre, traversant le dispositif de filtration et sortant du dispositif de filtration par une surface de sortie de filtre ; et un canal distributeur pour la distribution des gaz sortants à filtrer le long de la surface d'entrée du filtre et un canal collecteur pour collecter les gaz sortants filtrés à la surface de sortie du filtre. Dans la direction de l'écoulement des gaz sortants, la section du canal collecteur augmente et/ou la section du canal distributeur diminue.
EP13759428.9A 2012-07-26 2013-07-26 Installation de filtration de gaz sortants Withdrawn EP2877265A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102012106799 2012-07-26
DE102012111862.0A DE102012111862B4 (de) 2012-07-26 2012-12-06 Abgasfiltervorrichtung
DE102013107907 2013-07-24
PCT/DE2013/100276 WO2014015862A1 (fr) 2012-07-26 2013-07-26 Installation de filtration de gaz sortants

Publications (1)

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EP2877265A1 true EP2877265A1 (fr) 2015-06-03

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EP13759428.9A Withdrawn EP2877265A1 (fr) 2012-07-26 2013-07-26 Installation de filtration de gaz sortants

Country Status (7)

Country Link
US (1) US9629938B2 (fr)
EP (1) EP2877265A1 (fr)
CN (1) CN104661724A (fr)
AU (1) AU2013295456B2 (fr)
CA (1) CA2881071A1 (fr)
DE (2) DE202013012690U1 (fr)
WO (1) WO2014015862A1 (fr)

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BR112018071685A2 (pt) * 2016-04-22 2019-02-19 Pure Dragon Environmental Ltd. dispositivo e método para remoção de poluentes de fluxos de gás
TWI629070B (zh) * 2016-06-30 2018-07-11 林信湧 氣體產生器
CN109068547B (zh) * 2018-09-26 2020-06-26 郑州科技学院 一种小型机电设备用除潮装置
CN109908747A (zh) * 2019-02-18 2019-06-21 中国舰船研究设计中心 一种附壁式一体化过滤通风装置
CN110013729B (zh) * 2019-03-14 2020-06-12 深圳市金迈能科技有限公司 废气处理系统
DE102019112992A1 (de) * 2019-05-16 2020-11-19 Keller Lufttechnik Gmbh + Co. Kg Filtereinheit
CN113957682B (zh) * 2020-07-21 2023-11-28 重庆海尔滚筒洗衣机有限公司 一种冷凝装置及具有该冷凝装置的衣物处理设备
CN114849426A (zh) * 2022-05-25 2022-08-05 漳州市龙文翰苑化工有限公司 一种新型甲醛废气处理系统
DE102022124690A1 (de) 2022-09-26 2024-03-28 Fritzmeier Umwelttechnik Gmbh & Co. Kg Gasfilter

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Also Published As

Publication number Publication date
DE202013012690U1 (de) 2018-08-10
CN104661724A (zh) 2015-05-27
WO2014015862A1 (fr) 2014-01-30
CA2881071A1 (fr) 2014-01-30
AU2013295456A1 (en) 2015-03-12
AU2013295456B2 (en) 2017-05-18
US20150165083A1 (en) 2015-06-18
WO2014015862A4 (fr) 2014-03-13
US9629938B2 (en) 2017-04-25
DE202013012679U1 (de) 2018-08-10

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