EP1314484A1 - Spritzkabine - Google Patents

Spritzkabine Download PDF

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Publication number
EP1314484A1
EP1314484A1 EP01830723A EP01830723A EP1314484A1 EP 1314484 A1 EP1314484 A1 EP 1314484A1 EP 01830723 A EP01830723 A EP 01830723A EP 01830723 A EP01830723 A EP 01830723A EP 1314484 A1 EP1314484 A1 EP 1314484A1
Authority
EP
European Patent Office
Prior art keywords
booth
operator
airflow
spray booth
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.)
Granted
Application number
EP01830723A
Other languages
English (en)
French (fr)
Other versions
EP1314484B1 (de
Inventor
Antonio Di Battista
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.)
Technoplants SRL
Original Assignee
Technoplants SRL
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
Application filed by Technoplants SRL filed Critical Technoplants SRL
Priority to ES01830723T priority Critical patent/ES2320628T3/es
Priority to DE60137237T priority patent/DE60137237D1/de
Priority to EP01830723A priority patent/EP1314484B1/de
Priority to AT01830723T priority patent/ATE419074T1/de
Publication of EP1314484A1 publication Critical patent/EP1314484A1/de
Application granted granted Critical
Publication of EP1314484B1 publication Critical patent/EP1314484B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F24F3/163—Clean air work stations, i.e. selected areas within a space which filtered air is passed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy
    • F24F2120/12—Position of occupants

Definitions

  • the present invention concerns a spray booth. More particularly, 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 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.
  • the invention is based on the assumption that it is not necessary to ventilate the whole of the booth at the above mentioned speed, but only those areas inside the booth where the operators are present. Indeed, harmful substance emission, being related with the working cycle, is concentrated only where the operators are present. Moreover, a quick and effective exhaust of said substances is required only where the operators are present.
  • the spray booth according to the invention is characterised by the use of a set of independent aeration systems, each capable of effectively ventilating a portion of reduced volume of the booth itself.
  • the invention entails the use of means capable of detecting at any instant the position(s) of the operator(s) present inside the spray booth. In such manner, it is possible to actuate only those ventilation systems corresponding to the sections where the operators are present.
  • the operator can safely work, since the necessary airflow is ensured in the section he occupies in any working phase.
  • a spray booth generally denoted by reference numeral 1 and comprising a base 1a, side walls 1b to 1e and a ceiling if.
  • Such parts define a substantially free room for housing one or more articles to be processed.
  • the floor of spray booth 1 is divided into a set of platforms (P1, P2...Pn) that notionally divide said booth 1 into a set of adjacent regions Z1, Z2...Zn.
  • Each region Z1, Z2...Zn is equipped with an independent ventilation system, comprising at least one blower and one aspirator, disclosed in more detail hereinafter.
  • platforms P1, P2...Pn are connected to pressure sensitive detectors. In this manner, thanks to the pressure exerted by the weight of operator 3 onto the various platforms, it is always possible to locate operator 3 himself within spray booth 1 and to suitably actuate the ventilation system.
  • the ventilation system when operator 3 is on platform Pi, the ventilation system is actuated only for region Zi and for adjacent region Zj, i. e. for the regions where removal of harmful volatile substances by means of the airflow is actually necessary.
  • the ventilation systems associated with the other regions keep inactive, thereby allowing a considerable energy saving.
  • Fig. 2 schematically shows the ventilation system of spray booth 1.
  • Each region Zi of spray booth 1 may be subdivided into a central portion Ci, which is used for spray operations, an upper portion Mi, called “plenum”, and a lower portion Fi, devoted to the system filtering the air used for ventilation.
  • Ducts 5 located at both sides of central portion Ci are connected to blowers, not shown in the drawing. Said blowers send an airflow at a temperature and a speed suitable for meeting the present regulations through plenum Mi and into central portion Ci, so as to reach the operator and the surrounding environment.
  • lower portion Fi is devoted to a wet filtering system 13.
  • the contaminated airflow is made to pass through water supplied by taps 15 and is collected at the bottom of filtering system 13. In this way, most of the harmful substances carried by the airflow are deposited into water, where they can more easily be confined.
  • the partly decontaminated air is then sucked into ducts 19 thanks to the action of aspirators, not shown in the drawing, provided in the same ducts 19.
  • the aspirators force the airflow along a fixed path. Air is then sent to suitable decontaminating equipment (comprising e.g. a set of carbon filters) before being exhausted into the external environment.
  • suitable decontaminating equipment comprising e.g. a set of carbon filters
  • blowers and the aspirators are so sized that they ensure effective ventilation of the volume of the only central portion Ci of region Zi.
  • Fig. 2 diagrammatically shows also the operation of platforms Pi, on which the selective ventilation of spray booth 1 is based.
  • Platforms Pi consist of movable grids, linked to a stationary floor 8 through a set of resilient joints 11. Thanks to the deformation of joints 11 because of the weight of operator 3, it is possible to detect on which platform Pi operator 3 is and, consequently, to actuate or to stop the ventilation system of region Zi.
  • Fig. 3 diagrammatically shows a second preferred embodiment of the invention. Said embodiment differs from the previous one in respect of the means used for selectively ventilating the region of booth 1 where operator 3 is.
  • Plenum M is separated from the underlying room by a set of partitions or shutters S1u, S2u... Snu in register with the underlying platforms P1, P2...Pn. Similarly, second partitions or shutters S1d, S2d ... Snd are present beneath platforms P1, P2...Pn.
  • the system of platforms connected to pressure detectors arranged to detect the operator's position is typical of the illustrated embodiment.
  • the spray booth of the invention can use any means for detecting the operator's position inside it. For instance, use can be made of photocells or portable transmitters worn by the operators and associated with a receiver connected to the ventilation system.
  • blowers and aspirators are typical of the illustrated embodiment. Similar results could be achieved for instance by using a single, centralised ventilation system for the whole booth, jointly with a set of valves or partitions arranged to direct the airflow to the desired sections only,
  • ventilation systems creating a downward vertical airflow have been used.
  • spray booth of the invention can suitably use ventilation systems creating an upward vertical airflow or a laterally directed airflow,
  • Said booth has a volume of 525 m 3 and its base has a surface area of 105 m 2 .
  • the spray booth of the invention If the spray booth of the invention is used, let us assume that the booth length is divided into sections 2 m long and that only the two sections adjacent to the operator are ventilated. In this case, the volume to be ventilated decreases from 525 m 3 to 140 m 3 . Under these assumptions, an airflow rate of 50,400 m 3 per hour and 151,200 Kcal per hour to heat said air are sufficient.
  • the spray booth of the invention affords an energy saving of 415,800 Kcal per hour. If a period of 100 workdays is considered, during which the booth is used 24 hours a day, said energy saving corresponds to about 199,584 Kg fuel.
  • the volume of air to be exhausted will be 189,000 m 3 .
  • the actual cost for setting up a decontaminating system meeting the existing regulations for the above air amount is about 2 to 2.5 Millions Euros.
  • the volume of air to be decontaminated will be 50,400 m 3 only, with a cost for setting up the decontaminating and recovery system of about 1 to 1.25 Millions Euros.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Ventilation (AREA)
  • Separation Of Particles Using Liquids (AREA)
EP01830723A 2001-11-23 2001-11-23 Spritzkabine Expired - Lifetime EP1314484B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES01830723T ES2320628T3 (es) 2001-11-23 2001-11-23 Cabina de pulverizacion.
DE60137237T DE60137237D1 (de) 2001-11-23 2001-11-23 Spritzkabine
EP01830723A EP1314484B1 (de) 2001-11-23 2001-11-23 Spritzkabine
AT01830723T ATE419074T1 (de) 2001-11-23 2001-11-23 Spritzkabine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01830723A EP1314484B1 (de) 2001-11-23 2001-11-23 Spritzkabine

Publications (2)

Publication Number Publication Date
EP1314484A1 true EP1314484A1 (de) 2003-05-28
EP1314484B1 EP1314484B1 (de) 2008-12-31

Family

ID=8184787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01830723A Expired - Lifetime EP1314484B1 (de) 2001-11-23 2001-11-23 Spritzkabine

Country Status (4)

Country Link
EP (1) EP1314484B1 (de)
AT (1) ATE419074T1 (de)
DE (1) DE60137237D1 (de)
ES (1) ES2320628T3 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007138558A2 (en) * 2006-06-01 2007-12-06 Usi Italia S.R.L. Ventilation system for spray booths, preparation areas and similar
EP2181774A1 (de) 2008-10-30 2010-05-05 Walusa, Sarl Verfahren zur Verwaltung vom Energieverbrauch in einem Arbeitsraum und Vorrichtung zum Ausführen dieses Verfahrens
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
CN109780672A (zh) * 2019-03-15 2019-05-21 广东环葆嘉节能科技有限公司 用于汽车钣喷线的通风机构、通风装置及汽车钣喷线系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH644282A5 (en) * 1979-08-09 1984-07-31 Lamab Maskin Ab Spray booth for paint-spraying or varnishing which is provided with a ventilation device
US4926746A (en) * 1988-01-05 1990-05-22 Smith Clyde M Work chamber with shifting ventilation zone
US6264547B1 (en) * 1996-12-20 2001-07-24 WäLTI ROBERT Spraying booth and circulation system for a working chamber

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH644282A5 (en) * 1979-08-09 1984-07-31 Lamab Maskin Ab Spray booth for paint-spraying or varnishing which is provided with a ventilation device
US4926746A (en) * 1988-01-05 1990-05-22 Smith Clyde M Work chamber with shifting ventilation zone
US6264547B1 (en) * 1996-12-20 2001-07-24 WäLTI ROBERT Spraying booth and circulation system for a working chamber

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007138558A2 (en) * 2006-06-01 2007-12-06 Usi Italia S.R.L. Ventilation system for spray booths, preparation areas and similar
WO2007138558A3 (en) * 2006-06-01 2008-02-07 Usi Italia S R L Ventilation system for spray booths, preparation areas and similar
EP2181774A1 (de) 2008-10-30 2010-05-05 Walusa, Sarl Verfahren zur Verwaltung vom Energieverbrauch in einem Arbeitsraum und Vorrichtung zum Ausführen dieses Verfahrens
FR2938084A1 (fr) * 2008-10-30 2010-05-07 Walusa Procede de gestion de la consommation de l'energie dans un local professionnel et dispositif mettant en oeuvre ledit procede
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
CN109780672A (zh) * 2019-03-15 2019-05-21 广东环葆嘉节能科技有限公司 用于汽车钣喷线的通风机构、通风装置及汽车钣喷线系统

Also Published As

Publication number Publication date
DE60137237D1 (de) 2009-02-12
EP1314484B1 (de) 2008-12-31
ES2320628T3 (es) 2009-05-27
ATE419074T1 (de) 2009-01-15

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