EP1493495B1 - Cabine de pulvérisation - Google Patents
Cabine de pulvérisation Download PDFInfo
- Publication number
- EP1493495B1 EP1493495B1 EP04015576A EP04015576A EP1493495B1 EP 1493495 B1 EP1493495 B1 EP 1493495B1 EP 04015576 A EP04015576 A EP 04015576A EP 04015576 A EP04015576 A EP 04015576A EP 1493495 B1 EP1493495 B1 EP 1493495B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- booth
- room
- spray booth
- partitions
- spray
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000007921 spray Substances 0.000 title claims abstract description 30
- 238000005192 partition Methods 0.000 claims description 15
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 8
- 238000009423 ventilation Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 6
- 238000005507 spraying Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229940098458 powder spray Drugs 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/60—Ventilation arrangements specially adapted therefor
Definitions
- the present invention concerns a spray booth.
- the invention concerns a spray booth of the kind equipped with means for generating a forced airflow capable of avoiding inhalation of harmful volatile products by the operator.
- Spray booths of the above kind are widely used for painting vehicle bodyworks, frames, aircraft parts and so on, but they can also be used for other processes, such as applying lutes and other protective materials involving volatile product exhalation.
- the present regulations require that a forced airflow is generated in the booth, with a suitable speed to quickly and constantly evacuate harmful substances.
- the air introduced into the booth is to be heated or cooled to reach a comfortable temperature for the operator.
- a further problem related with the use of spray booths of the described kind is the need to decontaminate the exhausted air before discharging it again into the outer environment.
- booths In order to limit the consumption of energy, while guaranteeing at the same time the respect of the present regulations in terms of operator safety, booths have been conceived wherein only the portion of booth occupied by the user is ventilated. An example of realisation of such booths is shown in the European patent application EP 1314484 in the name of the Applicant.
- Said document describes a spray booth the floor and the ceiling of which are divided into a plurality of regions, each of said regions being provided with an independent ventilation system.
- Each region of the floor comprises a pressure sensor for detecting the presence of the operator in said region, so that only the ventilation systems relative to that region and to the adjacent regions are actuated.
- said solution can be applied only when vertical airflows are used, as the control of the ventilation systems is based on the detection of the weight of operator.
- EP 480,664 discloses a powder spray booth according to the preamble of claim 1, which is delimited by a ceiling, a floor and a plurality of side walls which define an interior room in which powder coating material is applied onto objects moved by a conveyor through the booth.
- the interior of the spray booth is subdivided in a plurality of zones, namely coating zones and transition zones and of the coating or transition zones is provided with a dedicated system for introducing air therein through the ceiling of the booth and for withdrawing air from the bottom of the booth, thus generating an independent vertical flow of air in each zone.
- a further object of the present invention is to provide a spray booth the ventilation system of which can be effectively used for processing articles having any shape and size.
- the invention is based on the assumption that it is not necessary to ventilate the whole of the spray booth at the above mentioned speed, but only those regions inside the booth where the emission of harmful substance is present.
- said control device comprises a processing unit provided with a file wherein the size features of all the articles that could be sprayed and the corresponding instructions for the control system of the spraying system are stored.
- control device is based on the shape and on the position of the article to be sprayed and not on the position of operator moving inside the booth, the selection of the regions to be ventilated is set only once at the beginning of the spraying operation and is not modified during the processing.
- a spray booth according to the invention, generally denoted by reference numeral 1 and comprising a base 1a, side walls 1b to 1e and a ceiling 1f. Inside booth 1 it is defined a substantially free room for housing one or more articles 101,103 to be processed.
- Each region Z i can be independently ventilated, as it will be described more in detail in the following.
- each region Z i is controlled by a control system on the basis of the data concerning the shape and the position of the article 101, 103 to be sprayed or to be processed, so that the region Z i is ventilated only if occupied by said article 101,103.
- said control system is provided with a processing unit comprising a processing file, wherein the data concerning the geometric shape of the articles to be sprayed are stored.
- the ventilation system will be actuated only in the regions Z 4 , Z 7 , Z 11 , Z 16 .
- Said ventilation system is housed inside a room 3 adjacent to the side wall 1c and 1e of the spray booth 1 and comprises one or more vertical ducts 5 from which the air respectively blown and sucked comes.
- Said vertical ducts 5 are provided with a plurality of side openings 7 through which the air flow is introduced into a so called compensation "plenum" 9, that, if necessary, is divided by means of vertical 12 and horizontal 13 baffles.
- Said "plenum" 9 are separated from the room inside the spray booth by a series of partitions S 1 ,S 2 ,..,S i ,..S 16 , respectively obtained in the wall 1c and in the wall 1e of the booth 1, one partition for each area P 1 ,P 2 ,..,P i ,..P 16 of each wall.
- Said partitions comprise some fins 15 that can be rotated thanks to leverages or gears so that said partitions can pass from an open to a closed position and vice versa.
- the opening of said partitions S 1 ,S 2 ,..,S i ,..S 16 is actuated by the control system on the basis of the information stored in the processing file and concerning the article to be processed and occurs through actuators acting on said leverages or gears which set into motion said fins.
- the air sucked through the areas of the wall 1e is then conveyed to suitable decontaminating equipment (comprising e.g. a set of carbon filters) before being exhausted into the outer environment.
- suitable decontaminating equipment comprising e.g. a set of carbon filters
- control device opens or respectively closes, for each partition S i present on said wall 1c, the partition aligned with it and arranged on the opposed wall 1e.
- blowers and the aspirators are so sized that they ensure effective ventilation of each region Z i , in the respect of the present regulations.
- filters 11 are mounted for preventing that impurities existing in the airflow coming from the blower penetrate inside booth 1. Similar filters are advantageously mounted on the opposed wall 1e for preventing that the volatile substances used in the spraying process contaminate the outer environment.
- Said filters 11 are preferably inserted into frames hinged to said wall(s) so that they can pivot and can be easily inspected from the inside of booth 1.
- anemometers are arranged in suitably selected points inside said booth. Said anemometers provide to the control device the measurement of the airflow present in the booth 1; if said airflow is considered to be insufficient for ensuring the safety of operators inside the booth, the control device actuates the opening of further partitions S i for increasing said airflow until optimal conditions for the operators are obtained.
- each area P i on the wall 1c is equipped with its own blower and, correspondingly, that each area in the wall 1e is equipped with its own aspirator.
- the control device can be directly act on the control members of each blower and of each aspirator, for forcing the airflow in the desired region, according to the geometrical features of the article to be processed.
Landscapes
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Ventilation (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Road Signs Or Road Markings (AREA)
- Separation Of Particles Using Liquids (AREA)
Claims (8)
- Cabine de pulvérisation (1) dans laquelle est défini un compartiment essentiellement libre destiné à recevoir un ou plusieurs articles (101, 103) à traiter, ledit compartiment étant délimité par une série de parois, ladite cabine (1) étant équipée de moyens servant à générer à l'intérieur dudit compartiment un flux d'air à circulation forcée capable de modifier rapidement l'air qui est contenu, ladite cabine étant divisée en zones adjacentes (Z1, Z2 ..., 2n), chacune étant dotée de moyens correspondants permettant de générer ledit flux d'air à circulation forcée, lesdits moyens de production d'air étant actionnés de façon à confiner ledit flux dans les zones occupées par ledit (lesdits) article(s) (101, 103),
caractérisée en ce que deux au moins des parois latérales dudit compartiment sont subdivisées en une pluralité de zones (P1, P2 ..., Pn), chacune d'entre elles étant pourvue de cloisons indépendantes correspondantes (S1, S2, ..., Sn), dont l'ouverture peut être commandée, permettant de raccorder le compartiment à l'intérieur de ladite cabine (1) avec la pièce extérieure. - Cabine de pulvérisation (1) selon la revendication 1, caractérisée en ce que lesdites zones (P1, P2, ..., Pn) sont organisées sous la forme d'une matrice.
- Cabine de pulvérisation (1) selon la revendication 2, caractérisée en ce que lesdites cloisons (S1, S2, ..., Sn) raccordent le compartiment situé à l'intérieur de ladite cabine avec la pièce extérieure ou "collecteur" de compensation (9) dans laquelle circule l'air provenant d'un ou de plusieurs compresseur(s) d'air et dirigé vers le compartiment à l'intérieur de ladite cabine ou provenant dudit compartiment et dirigé vers un ou plusieurs aspirateur(s) d'air.
- Cabine de pulvérisation (1) selon la revendication 3, caractérisée en ce que ledit "collecteur" (9) comporte un ou plusieurs conduit(s) vertical (verticaux) (5) doté(s) d'une pluralité d'ouvertures latérales (7) à travers lesquelles le flux d'air généré par lesdits compresseurs d'air ou aspirés par lesdits aspirateurs d'air est introduit respectivement dans ledit collecteur ou évacué à partir de celui-ci.
- Cabine de pulvérisation (1) selon la revendication 4, caractérisée en ce que des filtres (11) sont fournis entre ledit "collecteur" (9) et ladite cabine (1) pour décontaminer l'air entrant dans ladite cabine ou sortant de ladite cabine.
- Cabine de pulvérisation (1) selon la revendication 2, caractérisée en ce que l'ouverture ou la fermeture de chacune desdites cloisons (S1, S2, ..., Sn) est actionnée par un dispositif de commande comprenant un fichier de traitement dans lequel les caractéristiques géométriques des dits articles (101, 103) à traiter sont enregistrées.
- Cabine de pulvérisation (1) selon la revendication 6, caractérisée en ce que lesdites au moins deux parois sont deux parois latérales parallèles (1c, 1e) et en ce que des paires de cloisons qui sont opposées l'une à l'autre sont actionnées de sorte qu'elles soient, soit ouvertes toutes les deux, soit fermées toutes les deux.
- Cabine de pulvérisation (1) selon la revendication 6, caractérisée en ce que ledit dispositif de commande comporte des moyens pour mesurer le flux de l'air à l'intérieur de ladite cabine (1) et en ce qu'il peut agir sur une ou sur plusieurs cloison(s) (Si), provoquant de ce fait son (leur) ouverture lorsque ledit flux d'air est insuffisant pour garantir des conditions de sécurité pour les opérateurs se trouvant à l'intérieur de ladite cabine (1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO20030508 | 2003-07-02 | ||
IT000508A ITTO20030508A1 (it) | 2003-07-02 | 2003-07-02 | Cabina di verniciatura |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1493495A2 EP1493495A2 (fr) | 2005-01-05 |
EP1493495A3 EP1493495A3 (fr) | 2007-10-31 |
EP1493495B1 true EP1493495B1 (fr) | 2010-04-28 |
Family
ID=33428327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04015576A Expired - Lifetime EP1493495B1 (fr) | 2003-07-02 | 2004-07-02 | Cabine de pulvérisation |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1493495B1 (fr) |
AT (1) | ATE465818T1 (fr) |
DE (1) | DE602004026806D1 (fr) |
IT (1) | ITTO20030508A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101433894A (zh) * | 2008-12-19 | 2009-05-20 | 孙新艾 | 新型节能减排型喷漆烤漆房 |
CN103736619A (zh) * | 2014-01-23 | 2014-04-23 | 机械工业第六设计研究院有限公司 | 智能喷漆室 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5095811A (en) | 1990-10-09 | 1992-03-17 | Nordson Corporation | Automotive powder coating booth with modulated air flow |
-
2003
- 2003-07-02 IT IT000508A patent/ITTO20030508A1/it unknown
-
2004
- 2004-07-02 AT AT04015576T patent/ATE465818T1/de not_active IP Right Cessation
- 2004-07-02 DE DE602004026806T patent/DE602004026806D1/de not_active Expired - Fee Related
- 2004-07-02 EP EP04015576A patent/EP1493495B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1493495A3 (fr) | 2007-10-31 |
ATE465818T1 (de) | 2010-05-15 |
EP1493495A2 (fr) | 2005-01-05 |
DE602004026806D1 (de) | 2010-06-10 |
ITTO20030508A1 (it) | 2005-01-03 |
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