EP0006120B1 - Spray booth - Google Patents

Spray booth Download PDF

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Publication number
EP0006120B1
EP0006120B1 EP79101366A EP79101366A EP0006120B1 EP 0006120 B1 EP0006120 B1 EP 0006120B1 EP 79101366 A EP79101366 A EP 79101366A EP 79101366 A EP79101366 A EP 79101366A EP 0006120 B1 EP0006120 B1 EP 0006120B1
Authority
EP
European Patent Office
Prior art keywords
air
chamber
velocity
speed
fan
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
Application number
EP79101366A
Other languages
German (de)
French (fr)
Other versions
EP0006120A1 (en
Inventor
Robert Joret
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.)
Omia Dite Ste
Original Assignee
Omia Dite Ste
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 Omia Dite Ste filed Critical Omia Dite Ste
Priority to AT79101366T priority Critical patent/ATE71T1/en
Publication of EP0006120A1 publication Critical patent/EP0006120A1/en
Application granted granted Critical
Publication of EP0006120B1 publication Critical patent/EP0006120B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Nozzles (AREA)
  • Separation Of Particles Using Liquids (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
  • Air-Flow Control Members (AREA)
  • Catching Or Destruction (AREA)
  • Spray Control Apparatus (AREA)
  • Ventilation (AREA)

Abstract

A device for adjusting to a predetermined value the rate of flow of air introduced into an enclosed space having at least one inlet for introducing warm or cold air by means of a fan into the enclosed space includes structure for controlling the velocity of the air thus introduced into the enclosed space, structure for varying the velocity of rotation of the fan, at least one extractor for discharging the air from the enclosed space, and structure responsive to the pressure prevailing in the enclosed space for setting the extractor speed so that the removal of air from the enclosed space is adjusted automatically as a function of the predetermined volume of air introduced into the enclosed space.

Description

L'invention concerne une cabine de peinture pour réaliser la peinture de divers matériels, tels que, notamment, véhicules ou autres.The invention relates to a paint booth for painting various materials, such as, in particular, vehicles or the like.

On sait que de telles cabines de peinture comprennent une enceinte contenant le matériel à peindre, cette enceinte étant pourvue d'un système de ventilation, voir p.ex. DE-A-2 710 254.It is known that such paint booths include an enclosure containing the material to be painted, this enclosure being provided with a ventilation system, see eg DE-A-2 710 254.

Dans le's cabines de peinture munies de tels systèmes de ventilation connus, la sécurité de l'opérateur, qui est situé à l'intérieur de la cabine et qui est protégé par un masque, dépend de la possibilité plus ou moins grande d'évacuer les solvants nocifs contenus dans les peintures, et dont les vapeurs se dégagent dans la cabine. Pour répondre aux exigences de sécurité, il suffit en général de prévoir une vitesse d'air constante et suffisante dans la cabine.In the paint booths provided with such known ventilation systems, the safety of the operator, who is located inside the booth and who is protected by a mask, depends on the greater or lesser possibility of evacuating the harmful solvents contained in paints, and whose vapors are released in the cabin. To meet safety requirements, it is generally sufficient to provide a constant and sufficient air speed in the cabin.

On connaît déjà du document US-A-4 011 735 un système de ventilation qui comporte au moins une introduction d'air chaud ou froid pulsé par un ventilateur d'admission, des moyens assurant le contrôle de la vitesse de l'air délivré, des moyens pour faire varier le débit du ventilateur, un ventilateur d'extraction assurant l'évacuation de l'air, et des moyens réglant le débit du ventilateur d'extraction afin que l'extraction de l'air soit automatiquement réglée en fonction du volume d'air déterminé introduit dans l'enceinte, la vitesse de l'air introduit dans l'enceinte à ventiler étant réglée à une valeur désirée, en fonction des besoins.Document US-A-4,011,735 already knows a ventilation system which comprises at least one introduction of hot or cold air pulsed by an intake fan, means ensuring the control of the speed of the air delivered, means for varying the flow rate of the fan, an exhaust fan ensuring the evacuation of air, and means regulating the flow rate of the exhaust fan so that the extraction of air is automatically adjusted according to the determined volume of air introduced into the enclosure, the speed of the air introduced into the enclosure to be ventilated being adjusted to a desired value, as required.

On connait également du DE-U-1 893 694 un dispositif de ventilation dans lequel les vitesses de l'air délivré et de l'air évacué sont réglées par variation du débit des ventilateurs respectifs de façon à maintenir une pression constante dans l'enceinte à ventiler.DE-U-1 893 694 also discloses a ventilation device in which the speeds of the supplied air and the exhausted air are regulated by varying the flow rate of the respective fans so as to maintain a constant pressure in the enclosure to ventilate.

Cependant, aucune cabine de peinture actuellement réalisée n'a été pourvue de moyens permettant de respecter la vitesse nécessaire selon des normes définies par les service de sécurité, compte tenu du volume du matériel à peindre introduit dans la cabine.However, no painting booth currently carried out has been provided with means making it possible to respect the speed required according to standards defined by the security services, taking into account the volume of the material to be painted introduced into the booth.

L'invention concerne une cabine de peinture pour réaliser la peinture de divers matériels, tels que, notamment, véhicules ou autres, comportant au moins une introduction d'air chaud ou froid pulsé par un ventilateur, des moyens assurant le contrôle de la vitesse de l'air introduit, des moyens pour faire varier la vitesse de rotation du ventilateur, au moins un extracteur assurant l'évacuation de l'air, et des moyens contrôlant la pression régnant dans la cabine et réglant la vitesse de l'extracteur, afin que l'extraction de l'air soit automatiquement réglée en fonction du volume d'air déterminé introduit dans l'enceinte, cette cabine étant caractérisée en ce que les moyens assurant le contrôle de la vitesse de l'air introduit dans ladite cabine sont réglés de façon que cette vitesse présente une valeur constante, fonction du volume du matériel à peindre introduit dans la cabine.The invention relates to a paint booth for painting various materials, such as, in particular, vehicles or the like, comprising at least one introduction of hot or cold air pulsed by a fan, means ensuring the control of the speed of the air introduced, means for varying the speed of rotation of the fan, at least one extractor ensuring the evacuation of air, and means controlling the pressure prevailing in the cabin and regulating the speed of the extractor, so that the air extraction is automatically adjusted as a function of the determined volume of air introduced into the enclosure, this cabin being characterized in that the means ensuring the control of the speed of the air introduced into said cabin are regulated so that this speed has a constant value, a function of the volume of the material to be painted introduced into the cabin.

Selon une particularité de cette invention, les moyens assurant le contrôle de la vitesse de l'air délivré dans l'enceinte sont positionnés dans le circuit de passage de l'air, la vitesse étant affichée sur un cadran indicateur pourvu d'un préréglage, fonction de la vitesse désirée.According to a feature of this invention, the means ensuring the control of the speed of the air supplied to the enclosure are positioned in the air passage circuit, the speed being displayed on an indicator dial provided with a preset, depending on the desired speed.

Selon une autre particularité de l'invention, ledit indicateur de vitesse à pré-affichage commande directement et automatiquement un variateur assurant le réglage de la vitesse du ventilateur d'admission à la valeur voulue.According to another feature of the invention, said speedometer with pre-display directly and automatically controls a variator ensuring the adjustment of the speed of the intake fan to the desired value.

D'autres caractéristiques et avantages de cette invention ressortiront de la description faite ci-après, en référence au dessin annexé, qui en illustre un exemple de réalisation non limitatif.Other characteristics and advantages of this invention will emerge from the description given below, with reference to the appended drawing, which illustrates a nonlimiting exemplary embodiment thereof.

La Figure unique du dessin représente, de façon très schématique, une cabine de peinture selon l'invenion.The single Figure of the drawing represents, very schematically, a paint booth according to the invention.

On voit que cette cabine de peinture se présente sous la forme d'une enceinte close dans laquelle est introduit le matériel à peindre, par exemple un véhicule ou similaire. Dans cet exemple de réalisation, le toit de cette cabine est muni d'un caisson 2 ouvert sur l'enceinte, et dans lequel est envoyé de l'air chaud ou froid pulsé par un ventilateur 1 d'admission. Bien entendu, le caisson 2 peut être placé en n'importe quel endroit de la cabine. Selon l'invention, on place dans le circuit de l'air un appareil de contrôle de vitesse d'air 3, du type actuellement disponible dans le commerce, et qui transmet les valeurs des vitesses qu'il détecte à un cadran indicateur 4 ayant été réglé préalablement (pré-affichage) en fonction de la vitesse désirée, laquelle, dans cette application particulière, est fonction du volume du matériel à peindre introduit dans la cabine.We see that this paint booth is in the form of a closed enclosure into which is introduced the material to be painted, for example a vehicle or the like. In this exemplary embodiment, the roof of this cabin is provided with a box 2 open on the enclosure, and into which hot or cold air is sent pulsed by an intake fan 1. Of course, the box 2 can be placed anywhere in the cabin. According to the invention, an air speed control device 3, of the type currently commercially available, is placed in the air circuit and which transmits the values of the speeds which it detects to an indicator dial 4 having been set beforehand (pre-display) according to the desired speed, which, in this particular application, depends on the volume of the material to be painted introduced into the cabin.

Le ventilateur d'admission 1 est entraîné par une moteur 7, par l'intermédiaire d'un variateur 6. Dans cet exemple de réalisation, non limitatif, on prévoit un levier de réglage 5 permettant de modifier manuellement la vitesse de rotation du ventilateur, afin de régler cette dernière à une valeur correspondant à la valeur de la vitesse pré-affichée (valeur de consigne) sur le cadran 4.The intake fan 1 is driven by a motor 7, by means of a variator 6. In this nonlimiting embodiment, an adjustment lever 5 is provided, allowing manual rotation of the fan speed, in order to set the latter to a value corresponding to the value of the speed pre-displayed (setpoint) on dial 4.

On peut bien entendu, sans sortir du cadre de cette invention, réaliser un système automatique de réglage de la vitesse de rotation du ventilateur 1 en dérivant du cadran 4 vers le tableau électrique 8 un fil qui commandera automatiquement le variateur 6, pour entraîner le ventilateur 1 à la vitesse voulue.It is of course, without departing from the scope of this invention, to realize an automatic system for adjusting the speed of rotation of the fan 1 by deriving from the dial 4 towards the electrical panel 8 a wire which will automatically control the variator 6, to drive the fan 1 at the desired speed.

On notera que ce résultat peut être obtenu avec n'importe quelles enceintes, quelles que soient leurs dimensions; il suffit de prévoir un ou plusieurs ventilateurs, ainsi qu'un ou plusieurs moyens de contrôle de vitesse de l'air admis dans l'enceinte.Note that this result can be obtained with any speakers, whatever their dimensions; it suffices to provide one or more fans, as well as one or more means for controlling the speed of the air admitted into the enclosure.

On conçoit, de la lecture de la description qui précède, que le dispositif permet de régler avec précision la vitesse de l'air introduit dans l'enceinte. Il est en outre indispensable que cette vitesse soit stable, et, à cet effet, l'invention prévoit des moyens permettant de contrôler l'extraction de l'air admis par l'intermédiaire du ventilateur 1.It will be understood, from reading the above description, that the device makes it possible to precisely regulate the speed of the air introduced into the enclosure. It is also essential that this speed be stable, and for this purpose, the invention provides means making it possible to control the extraction of the air admitted via the fan 1.

L'invention prévoit donc, dans ce but, un ventilateur d'extracteur 10, entraîné par un moteur 11 par l'intermédiaire d'un variateur 12, et prélevant l'air de l'enceinte (dans cet exemple d'application, cet air est chargé en vapeurs de solvants), pour l'évacuer vers une cheminée 9. Le dispositif comprend en outre un appareil 13 assurant le contrôle de la pression régnant dans l'enceinte. Cet appareil 13 est conçu et réalisé de façon à régler automatiquement la vitesse du ventilateur 10 en commandant le variateur 12, ou tout autre moyen équivalent.The invention therefore provides, for this purpose, an extractor fan 10, driven by a motor 11 via a variator 12, and taking air from the enclosure (in this application example, this air is loaded with solvent vapors), to evacuate it to a chimney 9. The device further comprises an apparatus 13 ensuring the control of the pressure prevailing in the enclosure. This device 13 is designed and produced so as to automatically regulate the speed of the fan 10 by controlling the variator 12, or any other equivalent means.

On peut ainsi régler l'extraction de l'air de l'enceinte en fonction du volume d'air introduit dans l'enceinte. Bien entendu, le variateur 12 peut être commandé manuellement, par tous moyens connus.It is thus possible to adjust the extraction of air from the enclosure as a function of the volume of air introduced into the enclosure. Of course, the variator 12 can be controlled manually, by any known means.

Le résultat indiqué ci-dessus peut être obtenu avec n'importe quelles enceintes, quelles que soient leurs dimensions; il suffit, en effet, de monter sur l'enceinte un ou plusieurs systèmes d'extraction, analogues à celui décrit plus haut, en fonction des dimensions de l'enceinte.The result indicated above can be obtained with any speakers, whatever their dimensions; it suffices, in fact, to mount one or more extraction systems on the enclosure, similar to that described above, depending on the dimensions of the enclosure.

Claims (3)

1. Paint spray chamber which comprises at least one means (2) for introducing warm or cold air by means of an input fan (1), means (3) for controlling the velocity of the air introduced into the chamber; means (6) for varying the rotational speed of said input fan, at least one extractor fan (10) for removing air from said chamber, and means (13) for controlling the pressure in said chamber and adjusting the extractor fan speed in such a way that the extraction of air from said chamber be set automatically as a function of the predetermined volume of air introduced into said chamber, said chamber being characterized in that the means (3) for controlling the velocity of the air introduced into said chamber are set so that said velocity has a constant value, dependent upon the volume of the items to be painted and contained in said chamber.
2. Paint spray chamber according to Claim 1, characterized in that said means (3) for controlling the velocity of the air introduced into said chamber are inserted in the air passage circuit, the value of the velocity being displayed on the dial of an indicator (4) provided with preadjustment means operating as a function of the desired velocity. _
3. Paint spray chamber according to Claim 1, characterized in that said indicator (4) for the pre-displayed velocity controls directly and automatically a variable speed gear (6) for setting the input fan (1) at the desired speed value.
EP79101366A 1978-06-09 1979-05-04 Spray booth Expired EP0006120B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79101366T ATE71T1 (en) 1978-06-09 1979-05-04 PAINT SPRAY BOOTH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7817267A FR2432144A1 (en) 1978-06-09 1978-06-09 AIR FLOW ADJUSTMENT DEVICE, PARTICULARLY FOR PAINTING CABINS
FR7817267 1978-06-09

Publications (2)

Publication Number Publication Date
EP0006120A1 EP0006120A1 (en) 1980-01-09
EP0006120B1 true EP0006120B1 (en) 1981-05-20

Family

ID=9209288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79101366A Expired EP0006120B1 (en) 1978-06-09 1979-05-04 Spray booth

Country Status (9)

Country Link
US (1) US4261256A (en)
EP (1) EP0006120B1 (en)
AT (1) ATE71T1 (en)
AU (1) AU4659979A (en)
DE (1) DE2960367D1 (en)
DK (1) DK239679A (en)
ES (1) ES481171A1 (en)
FR (1) FR2432144A1 (en)
NO (1) NO791927L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634708A1 (en) * 1996-08-28 1998-03-05 Rimu Lueftungstechnik Philipp Stall ventilation process

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FR2465961A2 (en) * 1979-09-26 1981-03-27 Omia AIR FLOW ADJUSTMENT DEVICE, PARTICULARLY FOR PAINTING CABINS
CA1161140A (en) * 1979-11-09 1984-01-24 Graeme J. Lowe Control of the atmosphere in an enclosure
US4363236A (en) * 1980-04-28 1982-12-14 Meyers Harry W Method and apparatus for detecting leaks in a structure
US4515072A (en) * 1981-12-14 1985-05-07 Spraybake Limited Spraybooth
US4497242A (en) * 1982-02-11 1985-02-05 Barber-Colman Company Ventilation control system
US4637301A (en) * 1984-02-06 1987-01-20 Environmental Air Control, Inc. Contamination control work station
US4552059A (en) * 1984-09-18 1985-11-12 Cambridge Engineering, Inc. Flow measurement for exhaust-type canopy and ventilating hood
US4741257A (en) * 1985-01-09 1988-05-03 Air Monitor Corporation Fume hood air flow control
US4653387A (en) * 1985-03-29 1987-03-31 Trinity Industrial Corporation Method of operating an air-feed type spray booth
JPS62152567A (en) * 1985-12-27 1987-07-07 Trinity Ind Corp Method for operating painting booth with air supply mechanism
CA1290992C (en) * 1985-12-27 1991-10-22 Michiaki Osawa Method of operating an air-supplied type coating booth
JPS62152569A (en) * 1985-12-27 1987-07-07 Trinity Ind Corp Method for operating painting booth with air supply mechanism
CA1296941C (en) * 1986-12-01 1992-03-10 Edward F. Wright, Jr. Static pressure control in variable air volume delivery systems
JPS63171663A (en) * 1987-01-10 1988-07-15 Toyota Motor Corp Painting booth
US4926746A (en) * 1988-01-05 1990-05-22 Smith Clyde M Work chamber with shifting ventilation zone
US4905579A (en) * 1988-03-11 1990-03-06 Dame Richard E Radon gas ventilation pump system and method
AU630068B3 (en) * 1991-06-24 1992-10-15 Spray 'n' Bake Spray Booths Aust. Pty. Ltd. Improved spray booth
US5820456A (en) * 1996-10-24 1998-10-13 Sandy J. Pangle Paint spray booth
US5922130A (en) * 1997-03-31 1999-07-13 Sermatech International, Inc. Spray booth for applying coatings to substrate
US6533654B2 (en) 2001-02-26 2003-03-18 Garmat Usa Inc. Integrated air flow booth and methods
US6736016B1 (en) 2003-06-11 2004-05-18 Ford Motor Company Paint booth air detection system
US7066091B2 (en) * 2003-06-16 2006-06-27 R.R. Donnelley & Sons Company Methods and apparatus for controlling impurity levels in an enclosed printing press environment
US7045013B2 (en) 2003-12-03 2006-05-16 Garmat Usa Spray booth systems and methods for accelerating curing times
US9681587B2 (en) * 2007-08-30 2017-06-13 Pce, Inc. System and method for cooling electronic equipment
US9395771B1 (en) 2007-10-26 2016-07-19 Pce, Inc. Plenum pressure control system

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US2297495A (en) * 1939-05-15 1942-09-29 Pfau Hans Ventilation of altitude cabins, in particular for aircraft
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DE1427897C3 (en) * 1961-12-22 1975-03-20 Hoestemberghe & Kluetsch Gmbh, 6630 Saarlouis Cooling bed for square rolled material
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634708A1 (en) * 1996-08-28 1998-03-05 Rimu Lueftungstechnik Philipp Stall ventilation process
DE19634708C2 (en) * 1996-08-28 2001-02-15 Rimu Lueftungstechnik Philipp Method for ventilating a barn and ventilation system for carrying out the method

Also Published As

Publication number Publication date
DE2960367D1 (en) 1981-08-27
ES481171A1 (en) 1979-11-16
NO791927L (en) 1979-12-11
US4261256A (en) 1981-04-14
FR2432144A1 (en) 1980-02-22
DK239679A (en) 1979-12-10
ATE71T1 (en) 1981-06-15
EP0006120A1 (en) 1980-01-09
AU4659979A (en) 1979-12-13

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