EP3638956A1 - Ventilating device - Google Patents
Ventilating deviceInfo
- Publication number
- EP3638956A1 EP3638956A1 EP18817005.4A EP18817005A EP3638956A1 EP 3638956 A1 EP3638956 A1 EP 3638956A1 EP 18817005 A EP18817005 A EP 18817005A EP 3638956 A1 EP3638956 A1 EP 3638956A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- holder
- filter
- ventilating device
- ventilation housing
- inspection cover
- 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
Links
- 238000009423 ventilation Methods 0.000 claims abstract description 59
- 230000033001 locomotion Effects 0.000 claims abstract description 34
- 238000004140 cleaning Methods 0.000 claims abstract description 28
- 238000007689 inspection Methods 0.000 claims description 53
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 6
- 238000013016 damping Methods 0.000 description 4
- 238000011045 prefiltration Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2035—Arrangement or mounting of filters
-
- 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
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/14—Filtering means
-
- 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
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/15—Supporting means, e.g. stands, hooks, holes for hanging
-
- 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
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/16—Connections to a HVAC unit
-
- 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
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
Definitions
- the present invention relates to ventilating devices, especially in kitchen environment and in particular in industrial kitchen environment.
- the method of purifying air by means of UV light is known by, for instance, the publication WO 03/61717, which discloses a ventilating device for this purpose where inflowing air to the device passes a number of UV lamps in order to be subjected to ozone action and thereby be purified so as to subsequently flow out from the device.
- the necessity to clean these UV lamps regularly is in addition demonstrated by the publication WO 2007/008164.
- the UV lamps both have to be cleaned as well as be replaced according to fixed time intervals for the air cleaning to be held on an acceptable level.
- WO 2005/084722 discloses a ventilating system for the purification of contaminated air by using UV lamps of specific wavelength.
- the ventilating system is combined with detachable particle-separating filters.
- WO 2014/191225 discloses a filter unit, its application, and a method for the purification of contaminated air.
- the document discloses a main flow passing the UV lamps to purify this air flow.
- the document discloses a secondary air flow with the purpose of cooling the electrical
- the filter unit embraces a housing inside which one or more UV lamps are placed.
- the housing is provided with a pull-out hatch for opening which allows access to the inside of the housing and thereby the UV lamps.
- WO 01/56624 discloses an air treatment apparatus which is placed above a source of contaminated air.
- the apparatus is provided with a removable filter surrounded by protective barriers to eliminate escape of UV light against a filter replacement operator.
- WO 95/17634 discloses a cleaning arrangement for room air in which an air flow passes a number of UV lamps and is purified from microorganisms and the like. Even if prior art affords possibility of opening and cleaning and replacing filter units of the ventilating devices, this will entail great difficulties since the devices are placed high up on ceiling level, for instance, in catering kitchen environments. For the cleaning of and replacement of filters, several persons are most often required and ladders and tools. The difficulty makes that the important intervals for cleaning and filter replacement are not kept with the result that the air is not sufficiently cleaned.
- the object of the present invention is to provide a ventilating device having
- UV lamps which both are faster and easier to clean than what previously has been the case.
- the object of the invention is furthermore that also filters of such a ventilating device should be possible to be replaced faster and easier than earlier.
- the object is furthermore that easier and thereby more frequently clean the
- UV lamps since the filters easily can be removed.
- the object is to be able to carry out said cleaning and filter replacement operations from floor level without needing to use ladders.
- a number of ultraviolet light sources is used by which one or more UV lamps single-sided connected or UV tubes single- sided or double-sided connected should be appreciated and which are capable of emitting UV light.
- the present invention concerns a ventilating device comprising a ventilation housing having an air inlet and an air outlet for a principal air flow passing through. Between the air inlet and the air outlet, there is placed at least one ultraviolet light source, for the emission of UV light, in a UV holder.
- the UV holder is movably connected to the ventilation housing for movement out from or through the air inlet of the ventilation housing, for cleaning purposes.
- the parts of the ventilating device that are situated in the air flow and that by the same will be polluted are, by being possible to be turned out from the ventilation housing, possible to clean and particularly said turning-out movement is intended to be effected through the air inlet, which is extraordinarily advantageous since the polluting effect takes place at the air inlet.
- the UV holder is
- the UV holder according to the invention is not limited to any particular orientation of the UV sources but these may have an optional orientation in relation to the UV holder. In the embodiments shown, an essentially horizontal and an essentially vertical orientation are shown but also angled orientations are feasible within the scope of the invention.
- the UV holder is turnably arranged in relation to the ventilation housing.
- the turnability is designed to be effected on a rotation shaft, which is oriented preferably essentially horizontally or essentially vertically in the ventilation housing.
- the rotation shaft is placed in the ventilation housing and adjacent to the edge portion of the UV holder.
- the rotation shaft may be oriented in a suitable way with regard to the selected design, however, an essentially horizontal or an essentially vertical orientation is preferable.
- the UV holder is turnably movable on an essentially horizontal rotation shaft in the ventilation housing, to allow an angling out and down of the UV holder and the ultraviolet light source connected to the UV holder from the ventilation housing.
- the essentially horizontal rotation shaft is placed in the lower part of the ventilation housing, the opposite edge portion of the UV holder being disengageably connected to an upper part of the ventilation housing.
- An alternative location of said rotation shaft is that it is placed in the upper part of the ventilation housing, the opposite edge portion of the UV holder being disengageably connected to a lower part of the ventilation housing.
- the ventilation housing is provided with an inspection cover inside which the UV holder is fitted.
- the UV holder is fitted on a
- the movement away from said ventilation housing means that the movement takes place toward the maintenance staff standing on the floor to easier be able to clean the ventilating device since the ventilating device usually is placed high or even at ceiling height, which in restaurant kitchens may mean a height of several metres.
- said filter is fitted on a telescopically displaceable movement device so that said filter after its movement is translatory displaceable in a direction away from said ventilation housing.
- said ultraviolet light source is
- a covering tube having good transmissivity for UV radiation e.g. a tube of quartz glass, which covering tube is fitted withdrawably from said ultraviolet light source, for cleaning purposes.
- the covering tubes which may be quartz tubes, may be individual but preferably fitted on a common holder. The holder is formed with the same size as the filter considering that these light units should be possible to be cleaned in the same way as the filters.
- filter and the corresponding covering tube, quartz tube are assembled and are disassembled as one unit for cleaning.
- the filters are washed up regularly, which means that if the covering tubes are connected to the filters, also the covering tubes will be cleaned relatively often.
- Staff most often knows that filter has to be cleaned relatively often but UV lamps, however, more rarely. It is hard to know when and therefore there are in a control system signals which communicate when cleaning should be effected.
- the cleaning of the UV lamps is often the weak link of this air purification process.
- a ventilating device comprises a ventilation housing having an air inlet and an air outlet for a principal air flow passing through. Between the air inlet and the air outlet, there are placed a number of ultraviolet light sources in a UV holder.
- the ventilation housing is furthermore provided with an inspection cover. Said UV holder is adjacent to its edge portion rotatably movable on an essentially horizontal rotation shaft in the lower part of the ventilation housing, the opposite edge portion of the UV holder being
- the UV holder is either a part of the inspection cover or is fitted on the inspection cover of the ventilation housing.
- the inspection cover is journalled on said rotation shaft.
- the UV holder is fitted on a
- the inspection cover is essentially flat.
- the displacement of the UV holder is arranged to be effected essentially in a plane parallel to the plane of the inspection cover.
- At least one filter unit is placed upstream of the UV holder and its ultraviolet light source.
- the embodiment comprises at least one filter but also a plurality of filters placed side by side or after each other with regard to the direction of flow is feasible.
- filters placed one after the other may be given different properties for the filtering of different particles.
- these filters are in principle impermeable to UV light.
- a filter unit is placed between the ultraviolet light source and an inspection cover.
- the UV holder is rectangularly shaped.
- said filter unit is fitted on said inspection cover and/or on said UV holder.
- the inspection cover or the UV holder may be carrier of the filter.
- both the filter and the UV holder may be fitted on the inspection cover.
- said filter or filter unit is fitted in a filter frame or in a filter cassette.
- a ventilating device is formed with a frame having one or more pre-filters which frame also is provided with UV lamps, preferably four to six but the number may be adapted according to needs.
- the frame is fitted to the chassis of the ventilating device in its lower edge with essentially horizontally arranged hinges. In the upper edge of the frame, there is a locking device. When this locking device is released, the frame can be folded down.
- the frame is furthermore provided with two connected gas springs such as damping cylinders, one on each side of the frame, to entirely or partly neutralize the weight of the frame with its UV lamps and its filters.
- the ventilating device is also provided with two foldable supporting arms which stabilize the frame in the lower position, preferably by a small "overbend" from its straight folded-down position. This "overbend" is advantageous since the folded-down frame will be subjected to a change of weight when its pre-filters are removed.
- the ventilating device is also provided with an essentially horizontal rod in the front edge of the frame which upon manual pressure breaks back "the overbend" wherein the frame is possible to close.
- the angle of the frame in folded-up position is in the embodiments shown approximately 45° in relation to a horizontal plane but may in other embodiments be both greater alternatively smaller.
- the frame of the ventilating device has a movement angle of approx. 90° upon folding down, which angle in other embodiments may assume other angles.
- On the frame there is an upturned fold, for instance, of 10 mm, which fold constitutes an edge which acts so that a filter does not slide out when the frame is folded down.
- the filter is lifted somewhat and is then pulled out for external cleaning.
- the filter is inserted and is laid down against the fold in order not to slide out during the handling of the frame.
- the attachment of the UV lamps is attaching either in the longitudinal direction of the frame or in the lateral direction of the frame.
- the locking device consists of a handle in the form of a rod which is loosened and folded forward, which movement operation releases the locking and the frame can be folded down.
- the ventilating device is furthermore provided with safety devices such as a power switch system which physically breaks the power cables when an inspection cover with or without the frame is turned out.
- the ventilating device is provided with a pressure sensor, which senses that there is negative pressure in the casing. If the negative pressure for some reason disappears, input current to the ventilating device is broken.
- the inspection cover also has the function of sealing movable parts against the ventilation housing so that UV light does not escape. With regard to this function, it is suitable that a negative pressure can be produced in the ventilation housing.
- These functions may in addition be integrated in the other movable components, for instance in filter holder and UV holder.
- the ventilating device is essentially formed so that the current traverses via the switch at a cover lock further to a pressure sensing device and then to ballasts which drive the UV lamps and which are located in a long box behind the UV lamps. Next, the current traverses to the different UV lamps.
- An alternative location of the ballasts is outside the exhaust unit to get better cooling.
- a fresh air flow is utilized past the ballasts by means of the pressure difference inside and outside the hood. In the present invention, it is the difference of pressure between the supply air pressure and the negative pressure before the purifying system that provides the cooling.
- Figure 1 shows an air flow through a ventilating device according to an embodiment of the invention.
- Figure 2 shows the ventilating device according to Figure 1 in an exploded diagram.
- Figure 3 shows an embodiment of the invention in a turned-out position.
- Figure 4 shows a further embodiment of the invention in a turned-out position.
- FIG. 5 shows the air flow through the ventilating device from the side.
- Figure 6 shows the ventilating device from the side in half turned-out
- Figure 7 shows the ventilating device from the side in entirely turned-out position.
- Figure 8 shows the ventilating device according to Figure 4 from the side.
- Figure 9 shows a side view according to a further embodiment of the
- Figure 10 shows the embodiment in Figure 9 with pulled-out filters.
- Figure 1 1 shows in an alternative embodiment with filters and UV unit pulled out.
- Figure 12 shows an alternative embodiment with only UV unit pulled out.
- Figure 13 shows in side view a further embodiment of the invention with filters and covering tubes partly pulled out.
- Figure 14 shows the embodiment according to Figure 13 in perspective view.
- Figure 15 shows a side view of an alternative embodiment with entirely pulled-out filters and covering tubes.
- Figure 16 shows a section A-A according to Figure 15.
- FIG. 1 shows an embodiment of a ventilating device 10 according to the invention.
- the arrows in the figure show the flow of the air into ventilating device 10 and out through the same via a ventilation duct 1 1 , shown by dashed lines, by the upwardly directed arrow.
- the inflow passes two co-lateral filter units 12, 13, which are situated on the same plane but separately detachable.
- the filter units 12, 13 are fitted in a filter frame 14 or in a filter cassette, which is mounted in the lower part of the ventilating device and which can be turned out via a locking device having a handle 15 for access to the interior of the ventilating device.
- the filter units are also designated as pre-filters since they are placed at the air inflow to the ventilating device and additional filters may be placed downstream of the air current.
- FIG. 2 shows the ventilating device 10 according to Figure 1 in an exploded diagram.
- the ventilating device comprises a ventilation housing 21 having an air inlet 22 and an air outlet 23 for a principal air flow passing through. Between the air inlet 22 and the air outlet 23, there are placed a number of ultraviolet light sources 24, 25, 26, UV lamps, in a UV holder 27.
- a number of ultraviolet light sources 24, 25, 26, UV lamps in a UV holder 27.
- At least one filter unit 12, 13 is placed upstream of the UV holder 27 and its ultraviolet light sources. Furthermore, there is fitted a ballast 28 in the UV holder 27 for the driving of the UV lamps.
- the UV holder 27 together with the filter frame 14 and the filter units 12, 13 are fitted on an inspection cover IS, all these parts being turned out when the inspection cover is opened. As seen in the embodiment, the inspection cover is provided with passing-through openings 200.
- the UV holder 27 is adjacent to its edge portion KPi rotatably movably suspended on an essentially horizontal rotation shaft 29 in the lower part of the ventilation housing 21.
- the opposite edge portion KP2 of the UV holder 27 is disengageably connected to an upper part of the ventilation housing 21 , so as to after opening of the inspection cover IS allow an angling out and down of the UV holder 27 and the ultraviolet light sources 24, 25, 26 connected to the UV holder 27 from the ventilation housing 21 , for cleaning purposes.
- the UV holder 27 with the ultraviolet light sources 24, 25, 26, together with the ballast 28 are designated as a UV unit, UV.
- FIG 3 shows an embodiment of the ventilating device 10 in a turned-out position.
- the UV holder 27 for the UV lamps is fitted on the inspection cover IS of the ventilation housing 21 .
- the filter frame 14 is fitted between the inspection cover IS and the UV holder 27 but fastened to the inspection cover.
- the two filter units 12, 13 are pulled out from their respective filter holder in the filter frame 14 by the filter units having been lifted by means of filter handles 32, 33 in the handle end and after that having been pulled out over a fold of the filter frame.
- the embodiment shows that both the filter frame 14 and the UV holder 27 are fitted on a respective plane which two planes are essentially parallel to the flat inspection cover IS.
- the two-way arrows show the directions of the displacement of the filter units 12, 13 outward and inward of their respective filter frames 14.
- At least one damping cylinder 34 is connected between the inspection cover IS and the ventilation housing 21 to balance the weight of the cover when the filter units 12, 13 are in place and furthermore, toggle links 35, 36 are connected between the cover and the ventilation housing 21 to hold the cover in its turned-out position during the period the UV lamps and the filter units are cleaned.
- the toggle links 35, 36 are interconnected via a handle 37 by which the toggle links can be inactivated and thereby allow a closure of the cover.
- Figure 4 shows a further embodiment of the invention in a turned-out position.
- This embodiment comprises all parts shown in the previous embodiment but comprises in addition a telescopically displaceable movement device 41 , which is provided with a fixed base part 42 fitted to the inspection cover IS and at least one holder part 43 telescopically displaceable in relation to the base part 42 on which the UV holder 27 and/or the filter frame 14 are/is fitted.
- the figure shows two such displaceable holder parts on each side of the inspection cover.
- the UV holder 27 and/or the filter frame 14 after angling out/down of the inspection cover IS are/is translatorily displaceable in a direction away from the essentially horizontal rotation shaft 29.
- this displacement of the holder part 43 is essentially parallel to the plane of the inspection cover IS.
- Figures 5-8 show side views where Figures 5-7 concern both the described embodiments while Figure 8 concerns only the telescopically arranged embodiment.
- FIG. 5 shows the ventilating device 10 with its inspection cover IS closed, the air current through the device being shown by the arrows.
- a locking device 51 is manoeuvred.
- the locking device 51 comprises the handle 15 placed on a rod 52 which is loosened and folded forward which movement operation releases the locking and the inspection cover and/or the frame can be folded down.
- Figure 6 shows the ventilating device 10 with its inspection cover IS in half turned-out position wherein the UV holder 27 with the ultraviolet light sources together with the filter frame 14 and its filter will become accessible for cleaning.
- the toggle links 36 fixing the turned-out inspection cover IS are not yet entirely turned out wherein a damping cylinder 34 works with a damping of the opening movement.
- the figure can also be seen in a position for an opposite movement where the handle 37 of the toggle links 36 have been manoeuvred to fold the links wherein a closure of cover is possible.
- Figure 7 shows the ventilating device 10 with its inspection cover IS in entirely turned-out position, the toggle links 36 limiting the movement and locking the same in the turned-out position.
- the figure shows the simplicity of the invention of providing a good accessibility for the cleaning of UV lamps and filters by the fact that the UV holder 27 and the filter frame 14 easily can be reached. The filters can in this connection be lifted and pulled over an upturned fold 73 to be removed from the filter frame 14.
- Figure 8 shows a side view according to Figure 4 of the invention with the ventilating device 40 and its inspection cover IS in entirely turned-out position.
- the telescopically displaceable movement device 41 is shown in entirely pulled-out position, a first telescopic part 81 and a second telescopic part 82 being entirely pulled out in relation to each other and in relation to the base part 42 fixedly fitted on the inspection cover IS.
- the figure clearly shows the further improved accessibility for the cleaning of UV lamps and filters by the fact that the UV holder 27 and the filter frame 14 can telescopically be displaced down toward an operator for cleaning.
- the filters can correspondingly in this embodiment be lifted and pulled over an upturned fold 83 to be removed from the filter frame 14.
- FIG 9 shows a further embodiment of the ventilating device 90 according to the invention having the UV holder 27 fitted rotatably movably suspended on an essentially horizontal rotation shaft 29 in the upper part of the ventilation housing 21 .
- the UV holder 27 is with the light sources and filters 13 thereof fitted on the inspection cover IS wherein all these parts are turnable on the rotation shaft 29 when the inspection cover IS is turned out to the position shown in the figure.
- FIG 10 shows the ventilating device 90 according to Figure 9 in a perspective view having the inspection cover IS turned out and with two filters 12, 13 partly pulled out while the UV holder 27 with the light sources 24, 25, 26 thereof not pulled out and visible through the openings of the inspection cover which in active state of the ventilating device are covered by filters.
- the filters can be entirely removed for separate cleaning or filter replacement.
- the filter movements are shown by the two-way arrows in the figure. These marked filter movements concern either the separate filters or the holders in which the filters are fitted.
- FIG 1 1 shows an alternative embodiment of the embodiment shown in Figure 10.
- the UV holder 27 is telescopically translatorily pulled out from the inspection cover IS in a direction away from said ventilation housing 21 after an turning motion on the rotation shaft 29 of the UV holder in the ventilation housing 21 .
- the filters 12, 13 are simultaneously pulled out in a direction away from said ventilation housing 21 .
- the movement of the UV holder away from the ventilation housing 21 is arranged to be effected at the same time as the pulling-out of the filters in a co-ordinated movement by the fact that filter holders and the UV holder are interconnected.
- these translatory motions may be separate for the respective filter holder and UV holder by filter holders and UV holder, respectively, being fitted on separate telescoping devices.
- Figure 12 shows a further embodiment where the UV holder 27 with its ultraviolet light sources 24, 25, 26 is fitted in a separate telescoping device in order to be possible to be pulled out from the inspection cover IS in a direction away from the ventilation housing 21 and in such a way facilitate cleaning of the light sources.
- the filters 12, 13 may in this embodiment keep their location in the inspection cover IS.
- Figures 13-16 show further embodiments to facilitate cleaning.
- at least one covering tube is used having good transmissivity for UV radiation, e.g. a tube of quartz glass, which covering tube is fitted withdrawably from the ultraviolet light source and in such a withdrawable position, the covering tube is distanced in the direction away from the ventilation housing for cleaning purposes.
- the light sources are oriented perpendicular to the rotation shaft in the ventilation housing and one- sidedly connected to a ballast for driving.
- Figure 13 shows a ventilating device 130 from the side according to a further embodiment of the invention. As has been shown in previous
- the ventilating device 130 is provided with a ventilation housing 21 provided with a rotation shaft 29 on which a UV holder 131 is rotatably movable.
- the UV holder 131 is provided with a number of light sources for the emission of ultraviolet light. Each such light source is surrounded by a covering tube 132 n which covering tube in the figure is shown partly pulled away from the light source.
- the figure also shows a filter 13 pulled out from its filter frame 14 for cleaning purposes. The pull direction of the movements is shown by the arrow in the figure.
- FIG 14 shows the ventilating device 130 according to Figure 13 in perspective with the turned-down UV holder 131 , possibly connected to an inspection cover IS, which UV holder is fitted for rotation on the rotation shaft 29.
- the UV holder 131 is provided with a number of ultraviolet light sources 124', 125', 126' which are surrounded by a corresponding number of covering tubes 132i, 1322, 1323, which in the figure are partly pulled away from the respective light source.
- the covering tubes can easier be cleaned since these have been moved in a direction away from the ventilation housing 21 .
- the covering tubes are collectively fitted on a covering tube holder so that the tubes together should be pulled away and be pushed on, respectively, the light sources.
- the covering tube holder may be separately connected to a telescoping device or be connected to a filter holder for collective translatory movement with the filters.
- Figure 15 shows an alternative ventilating device 130 wherein the covering tube holder 151 for the covering tubes 132 n is connected to the filters 13 for collective movement according to the double arrow in the figure.
- Figure 16 shows a section A-A according to Figure 15 with the entirely pulled-out covering tube holder 151 for the covering tubes 132i, 1322, 1323 from the ultraviolet light sources 124', 125', 126'.
- the covering tube holder 151 may be separately fitted on a telescoping device for independent movement in relation to the filters.
- the six light sources in the figure are connected in one end to a common ballast 161 for the driving of the light sources.
- the ballast is connected to the UV holder so as to be placed in the ventilation flow for cooling as well as be possible to be pulled out together with the UV holder for cleaning purposes.
- non-contaminated fresh air may be conveyed into the ventilating device and past the ballasts.
- ballasts are outside the ventilating device to be able cool the same beside the ventilation flow through the ventilating device.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1750769A SE542720C2 (en) | 2017-06-16 | 2017-06-16 | Ventilation device |
PCT/SE2018/050528 WO2018231119A1 (en) | 2017-06-16 | 2018-05-24 | Ventilating device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3638956A1 true EP3638956A1 (en) | 2020-04-22 |
EP3638956A4 EP3638956A4 (en) | 2021-03-17 |
Family
ID=64661028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18817005.4A Pending EP3638956A4 (en) | 2017-06-16 | 2018-05-24 | Ventilating device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3638956A4 (en) |
SE (1) | SE542720C2 (en) |
WO (1) | WO2018231119A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018201046A1 (en) * | 2018-01-24 | 2019-07-25 | BSH Hausgeräte GmbH | Hood |
IT201900010836A1 (en) * | 2019-07-04 | 2021-01-04 | Zeffiro | AIR DIFFUSION DEVICE |
CN110701658A (en) * | 2019-11-22 | 2020-01-17 | 河海大学常州校区 | Air purification lampblack absorber device with UV lamp |
IT202000012718A1 (en) * | 2020-05-28 | 2021-11-28 | Iso Italia Group S R L | AN ENVIRONMENT DISINFECTION DEVICE |
KR102309140B1 (en) * | 2021-01-07 | 2021-10-06 | 김승준 | Filter for kitchen hood |
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WO2003061717A1 (en) | 2002-01-16 | 2003-07-31 | Vent Master (Europe) Limited | Ultraviolet lamp ventilation apparatus and method |
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US20060000360A1 (en) * | 2004-06-30 | 2006-01-05 | Ming-Hwa Shou | Indoor air circulation sterilizing device |
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GB2478531A (en) * | 2010-03-08 | 2011-09-14 | David Alexander Shaw | A ventilation hood with a movable detachable filter |
GB2487544A (en) | 2011-01-25 | 2012-08-01 | Sirius Products Ltd | Odour removal unit comprising UV lamp controlled in response to ozone levels |
DE202011000465U1 (en) * | 2011-03-02 | 2012-06-04 | Bhg Die Edelstahl Profis Gmbh | UV light module for a commercial kitchen air cleaning system |
NO3004746T3 (en) | 2013-05-31 | 2018-04-21 | ||
DE202015008747U1 (en) * | 2015-12-21 | 2016-02-15 | Babett Kadvány | Retrofit UV filter for a commercial kitchen exhaust hood |
CN205536041U (en) * | 2016-04-01 | 2016-08-31 | 南京吉麦克环保科技发展有限公司 | Light -concentrating ultraviolet photolysis constitutional unit and photodissociation oil smoke clarifier |
CN106839040B (en) | 2017-03-29 | 2018-07-27 | 弗兰卡餐饮设备安装技术服务(中国)有限公司 | A kind of UV petticoat pipes easy to clean of band overturning structure |
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2017
- 2017-06-16 SE SE1750769A patent/SE542720C2/en unknown
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2018
- 2018-05-24 WO PCT/SE2018/050528 patent/WO2018231119A1/en active Search and Examination
- 2018-05-24 EP EP18817005.4A patent/EP3638956A4/en active Pending
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SE542720C2 (en) | 2020-06-30 |
WO2018231119A1 (en) | 2018-12-20 |
EP3638956A4 (en) | 2021-03-17 |
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