WO1989003925A1 - Procede et agencement pour remplir de gaz des vitrages scelles hermetiquement - Google Patents

Procede et agencement pour remplir de gaz des vitrages scelles hermetiquement Download PDF

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Publication number
WO1989003925A1
WO1989003925A1 PCT/SE1988/000544 SE8800544W WO8903925A1 WO 1989003925 A1 WO1989003925 A1 WO 1989003925A1 SE 8800544 W SE8800544 W SE 8800544W WO 8903925 A1 WO8903925 A1 WO 8903925A1
Authority
WO
WIPO (PCT)
Prior art keywords
medium
opening
gas
space
filling
Prior art date
Application number
PCT/SE1988/000544
Other languages
English (en)
Inventor
Jan Karlsson
Ingemar Fasth
Original Assignee
Window Barrier Hb
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 Window Barrier Hb filed Critical Window Barrier Hb
Publication of WO1989003925A1 publication Critical patent/WO1989003925A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/677—Evacuating or filling the gap between the panes ; Equilibration of inside and outside pressure; Preventing condensation in the gap between the panes; Cleaning the gap between the panes
    • E06B3/6775—Evacuating or filling the gap during assembly

Definitions

  • the present invention relates to a method for gas-filling of sealed glazing units and an arrangement for carrying out the method.
  • Sealed glazing units or, as they are also called, insulating glass panels are generally used in windows for reducing energy transfer. This is achieved by the sealed glazing unit being made up of several panes, at least two panes mounted at a distance from each other and with the intermediate space filled with a gas. The space is thus hermetically sealed, and it is assumed that the gas, which is originally filled into the intermediate spaces, will be retained during the whole lifetime of the sealed glazing unit.
  • panes During assembly of the panes, the ambient air is enclosed between these, and many sealed glazing units are also supplied in this condition. However, better insulating values can be achieved with certain gases than with air.
  • Certain types of panes, which have been covered with a transparent radiation-reflecting metal layer additionally require filling with an inert gas, expediently a rare gas, in order to prevent the metal layer from being oxidized or undergoing any other change.
  • the invention relates to the filling of sealed glazing units with a gas which replaces the enclosed air.
  • the filling gas is injected in a considerably greater amount that is needed to fill the space.
  • a mixture with the air is initially created and, thereafter, the gas is used to force this mixture out.
  • a medium which is in the gaseous state at the use temperature of the sealed glazing unit and at atmospheric pressure, is converted to the liquid state by compression and/or cooling, and, while it is at least partially in its liquid state, it is introduced into the respective space through a first opening, while such a supply of heat is provided as is required for volatilizing the liquid medium, and during the volatilization process a second opening is kept open for emission of the air expelled during the volatilization process.
  • the medium constitutes the gas-filling of the glazing unit.
  • the present invention provides a method for gas-filling of sealed glazing units, which method results in a high degree of replacement of the enclosed air by the filling gas, with a very small degree of over-charging.
  • the invention also provides an arrangement for carrying out such a gas-filling process.
  • Fig. 1 shows a cutaway view of a sealed glazing unit with three panes and with a filling arrangement according to the invention, in its first and second embodiments, illustrated in the connected state, the cutaway extending along the line I-I in Fig. 2, which figure shows a partial view of the sealed glazing unit in Fig. 1, with part of the filling arrangement also shown; and Fig. 3 shows the filling arrangement in a third embodiment.
  • a sealed glazing unit of the type to which the invention applies, is designated by reference 1 «
  • Fig. 1 it comprises three panes 2, 3 and 4.
  • Two spaces 5 and 6 are formed between the panes.
  • the width of the spaces is determined by two frames 7 of tubular profiles, usually of aluminium. These profiles follow the edge of the panes 2-4 all round, so that the spaces 5 and 6 are completely closed.
  • Fixing between the frames 7 and the panes is effected by means of layers 8 of an elastomer which has low gas permeability with respect to the gases which are to be filled into the intermediate spaces 5, 6.
  • a hole 9 is made in each of the frames 7 and, for removal of the enclosed air during filling, a hole 10 is arranged in each frame essentially at a position opposite the hole 9.
  • a water-absorbing mass 11, for example silica gel, is expediently inserted in the hole area in the tubular profiles which form the frames 7, and the holes 9, 10 also extend through this mass.
  • Fig. 1 shows, by way of example, three panes and, thus, two intermediate spaces. However, there can also be two panes and a single intermediate space, or more than three intermediate spaces.
  • the frames do not need to have exactly the appearance shown, another profile form being possible.
  • the basic form namely that several panes are hermetically sealed with respect to each other (the holes 9 and 10 will be closed in the use state) and thus form one or more spaces, is a prerequisite of the invention.
  • the number and position of the holes 9 and 10 this can vary for different pane sizes, but it is assumed here, for the sake of simplicity, that there are only two holes and that they are in positions opposite each other.
  • Fig. 1 shows, partially in cutaway view, a gas-filling arrangement according to the invention.
  • connection bracket 15 An electromagnet 16
  • mass flow regulator 17 An electromagnet 17
  • processor 18 a control unit 19
  • heating arrangement 20 which is shown in Fig. 2.
  • the mass flow regulator 17 is designed for attachment of a connecting hose 21 to a gas bottle 22.
  • the bracket 15 comprises a connection nipple 25 with a gasket 26.
  • the nipple 25 is attached to a valve housing 27 in which a filling nozzle 28 is secured.
  • the latter empties into a bore 29 in the valve housing 27, which is finished with a seat 30 for a valve needle 31, which runs in a guide 32. From the guide 32 there extends an angular bore 33 which forms the connection between the bracket 15 and the mass flow regulator 17.
  • valve needle 31 is actuated in the direction towards the seat 30 by a spring (not shown) and is attached to the armature of the electromagnet 16.
  • the armature can be moved in the customary manner by placing the magnet coil under tension.
  • the valve needle 31 is drawn outwards against the spring force and opens the passage from the bore 33 to the bore 29 by means of the valve needle 31 lifting from the seat 30.
  • This means that gas can flow from the mass flow regulator 17 and out through the end of the nozzle 28 provided with a hole. Only the housing of the electromagnet 16 is shown, since the construction of such an arrangement is already well known.
  • the mass flow regulator 17 is designed in such a way that, when it is placed under gas pressure from the connecting line 21, it allows a carefully regulated mass flow to pass through to the bore 33 per unit of time. Only the outside of the regulator is shown. Regulators of this type are, however, already well known and can be of many different designs. In a customary embodiment a regulator of this type is designed as a control valve whose opening area is controlled by the pressure on the intake side of the valve, such that an increasing pressure gives a smaller opening area, and vice versa. This can be achieved, for example, by a valve body, springloaded in the opening direction, being actuated in the closing direction by a diaphragm or a plunger, in turn actuated by the pressure in front of the valve.
  • the heating arrangement 20, as shown in Fig. 2, is designed for heating the frame 7 of the sealed glazing unit 1. It can be designed, as shown in Fig. 2, as a yoke 35 which is secured by the bracket 15 and is provided, at its ends, with electrical heating elements 36.
  • the filling arrangment 14 now described, or parts thereof, can be contained in an insulating shell in order to limit the effects of the ambient temperature and to avoid heating of the gas which is to flow through the arrangement.
  • the heating arrangement 20 can be insulated separately or lie outside the insulating shell.
  • the processor 18 is designed to provide current supply via lines 38 to the electromagnet 16 for lifting the valve needle 31 from the seat 30. It is further designed to provide current supply via lines 39 to the heating arrangement 22.
  • the control unit 19 is connected via lines 40 to the processor.
  • the control unit is provided with a keyboard 41, which is shown diagrammatically.
  • the processor is designed so as to provide, by means of receiving control impulses from the control arrangement 19, precise control impulses to the electromagnet 16 and the heating arrangement 20 by adapted ratings for these units. The control cycle, which will thereby be obtained, emerges from the following function description.
  • the second embodiment can also be said to be shown by Fig. 1.
  • the nipple 44 shown at the discharge hole 10 is intended to be an oxygen meter.
  • the latter is connected to the processor 19 for controlling the electromagnet 16 so that, when the oxygen content in the discharge air has been eliminated or reduced to a bottom limit value by the original air in the space 5 having been replaced by gas and the latter then beginning to flow out through the discharge hole 10, the valve for gas intake is closed.
  • Meters which can register the oxygen content in a gaseous mass are known and can be used in this context.
  • the processor 19 does not have to be designed for adjustable time measurement, as was described in connection with the first embodiment.
  • the second embodiment does not preclude the use of the two systems described, that is to say a time meas u r e m e n t adapted to the volume of the space 5 and an oxygen metering. In this way, greater safety is obtained against over-charging, as would occur, for example, if the oxygen meter were to become inoperable.
  • it is possible to create a standby situation by virtue of the fact that the processor determines the moment shortly before the flow of oxygen througn the discharge hole stops, by means of the fact that the space is filled.
  • a sensor reacting to oxygen it is possible to use a sensor reacting to nitrogen or a sensor which reacts to any component in the filled gas, so that the gas flow is shut down when this component begins to flow out through the discharge hole.
  • the third embodiment is shown in Fig. 3.
  • the sealed glazing unit is shown partially and has the same designations as before.
  • the gas-filling arrangement, here designated 45 has a housing 46 with a cylinder bore 47 and a long probe 48, which is intended to be introduced through the hole 9 and into the space 5.
  • the probe is tubular and is connected to the cylinder space 47 and has, at its part situated inside the space 5, a large number of slots 51 or other openings.
  • In the cylinder bore there is an inlet hole 49 which is in connection with a conduit 50 which leads to a source of liquid gas.
  • a plunger 52 which can be pressed into the cylinder bore by means of a rod 53 which runs through a cylinder head 54.
  • the aim is that the space in the cylinder bore 47 will be filled from the channel 49 with liquid gas by injection from the line 50 while the plunger 52 is withdrawn a certain distance.
  • the length of this distance is proportional to the volume which can be accommodated in the cylinder space.
  • the plunger can, by being inserted, convey this volume through the probe 48 and through its holes 51 out into the space 5.
  • valves may be required in the inlet channel 49 and in the brobe 48 for obtaining the described flow of the gas in the liquid state.
  • such arrangements are well known, for example from injection engine technology, and do not need to be described further.
  • the filling with gas takes place expediently when the sealed glazing unit 1 has reached the stage of preparation when its panes 2 and 4 have been joined together around the frames 7 by means of the sealing elastomer 8.
  • the holes 9 and 10 will be open at this time.
  • the filling can now begin and, in order to save time, this can be carried out while the sealed glazing unit is held pressed together in a press arrangement, while the elastomer is hardening.
  • the arrangement 14 according to the first embodiment should be connected to the glass bottle 22, and the latter should contain a sufficient amount of gas for the operation.
  • This gas should be stored in the gas bottle in liquid form. For certain gases this can be obtained, depending on the critical temperature of the gas used, at the working temperature (room temperature), while other gases must be maintained cold. In the latter case in particular the arrangement must be provided with insulation.
  • the aim is that the gas will be continuously injected in liquid form into the respective intermediate spaces 5, 6 and will be allowed to gasify there.
  • heating is required.
  • the nozzle 28 When the filling operation is to begin, the nozzle 28 is introduced through the hole 9, so that its open end is situated inside the space 5.
  • the hole 10 should be open at the same time.
  • a filling amount is chosen such that the amount of liquid gas injected is able, during its gasification, to completely fill the space, with expulsion of the existing air through the hole 10. This involves the valve needle 31 being lifted from the seat 30 for a certain time, the length of which is determined, on the one hand, by the amount required for filling the space, that is to say depending on the volume of the space, and, on the other hand, by the amount which the mass flow regulator 17 allows to pass per unit of time.
  • the processor 18 is designed to determine the time during which the electromagnet 16 is to be placed under tension, and the valve is thus to be open, on the basis of input values for the size of the window, which values are input via the keyboard 41 using clear designations, such as height and width, or determined type designations. These values are then converted in the processor 18 to open times for the valve. These open times are expediently produced by calibration on the basis of certain basic calculations. The calibration is expediently effected by measuring, by means of a gas analysis device, the discharge through the hole 10 with respect to air and gas content. It may also be necessary, during calibration, to take into consideration external circumstances such as the ambient temperature and air pressure. During use the values for such factors can then be input to the processor 18 for correcting the open times of the valve.
  • the reference 44 indicates a gas sensor or connection to such a sensor.
  • this sensor will record a component either in the outflowing air or in the gas which is to replace the air in the space 5.
  • the time at which the space is filled and all the air has flowed out can be determined in order to close down the inflow.
  • a basic idea behind the invention is, accordingly, that the gas will be introduced into the space in an at least partially liquid state and under such conditions that gasification will take place inside the space.
  • the gas is to be introduced into the space in at least partially liquid form, which means that the invention does not exclude the possibility that some of the gas stored in the liquid state already undergoes gasification in the filling apparatus before it has entered the space 5.
  • the mass flow regulator 17 can, in the case of a mixture of liquid phase and gaseous phase, have different designs.
  • mass flow regulators which operate only with liquid, that is to say a non-compressible medium, and others which operate with gases or aerosols.
  • the type used should of course be one which is adapted to the prevailing conditions in question.
  • Liquid gas is introduced in this case into the space in the cylinder bore 47 while the plunger 52 is withdrawn.
  • the gas is introduced through the channel 49 via the line 50 from a storage container.
  • the plunger 52 is introduced into the cylinder bore and the liquid gas flows through the probe 49 and out through its openings 51 in fine streams. Under suitable temperature conditions a slow gasification is obtained when the liquid emerges into the space 5 in the manner intended by the invention.
  • the pane When the pane is in use, the prevailing conditions in the surroundings are atmospheric pressure and temperatures between about -30°C and +50°C. After final sealing, any pressure in the panes which differs appreciably from the atmospheric pressure cannot be permitted, since, in the case of normal window sizes, the panes cannot tolerate any appreciable pressure differences.
  • the liquid gas when it has entered the space, should be gasified while it rises in the space and pushes the air ahead of it and out through the hole 10 without any essential whirling and mixing.
  • the gases which are used for filling windows are almost always heavier than air and therefore spread out below the air and, as gasification progresses, force the latter out. It is important that the Liquid gas should flow in smoothly. It is advantageous if the frame part, in which the injection hole is situated, is kept in a horizontal position so that the liquid gas can flow out to form an even shield over which the gasification can take place relatively uniformly, so that the air is also lifted uniformly and the formation of turbulence is avoided. In the case of large windows this can be further improved on if injection takes place at several positions simultaneously and emptying of the air can also take place at several points.
  • the holes 9 and 10 should be sealed. This is best achieved using the same type of elastomer as is used for holding the panes and the frames together.
  • the elastomer is injected as a mass which is able to harden. This has been carried out in the left space 6 in Fig. 1, where plugs 45 of sealing material are shown.
  • the filling is continued in the manner described until all the spaces are filled.
  • several arrangements 14 can be set up for simultaneous filling of all the spaces in windows with more than one space. For as smooth as possible a filling process, measures should be taken to prevent vibrations and other movements in the window.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)

Abstract

Un procédé permet de remplir de gaz des vitrages hermétiques comportant un certain nombre de vitres (2, 3, 4) scellées hermétiquement les unes par rapport aux autres et pourvues d'espaces intermédiaires (5, 6). Dans ce procédé, au moins une ouverture (9) est affectée à chaque espace (5, 6) pour l'introduction de gaz à l'état liquide, et au moins une ouverture (10) pour l'évacuation de l'air qui se trouve dans les espaces après assemblage des vitres. Le gaz, qui est à l'état gazeux à la température d'utilisation du vitrage hermétique (1) et à la pression atmosphérique, est converti à l'état liquide par compression et/ou refroidissement. Le gaz est introduit à l'état liquide dans l'espace respectif (5, 6) par la première ouverture (9). De la chaleur, laquelle est nécessaire à la volatilisation du gaz liquide, est fournie. Au cours du processus de volatilisation, la seconde ouverture est maintenue ouverte pour l'émission de l'air expulsé.
PCT/SE1988/000544 1987-10-19 1988-10-18 Procede et agencement pour remplir de gaz des vitrages scelles hermetiquement WO1989003925A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8704056-4 1987-10-19
SE8704056A SE459350B (sv) 1987-10-19 1987-10-19 Foerfarande och anordning foer gasfyllning av isolerrutor

Publications (1)

Publication Number Publication Date
WO1989003925A1 true WO1989003925A1 (fr) 1989-05-05

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PCT/SE1988/000544 WO1989003925A1 (fr) 1987-10-19 1988-10-18 Procede et agencement pour remplir de gaz des vitrages scelles hermetiquement

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WO (1) WO1989003925A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0733768A2 (fr) * 1995-03-21 1996-09-25 Peter Lisec Procédé et dispositif de dosage de gaz
WO2003040508A1 (fr) * 2001-11-06 2003-05-15 Truseal Technologies, Inc. Procede permettant de remplir de gaz inertes un espace interieur d'unites de verre isolantes
WO2010086831A1 (fr) * 2009-02-02 2010-08-05 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé et système de remplissage optimisé d'un contenant
WO2012110101A1 (fr) * 2011-02-18 2012-08-23 Southwall Technologies Inc. Procédé et dispositif servant à tendre une membrane et procédé de fabrication d'un élément à plusieurs vitres
US8595994B1 (en) 2012-05-30 2013-12-03 Cardinal Ig Company Insulating glass unit with asymmetrical between-pane spaces

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE501409C2 (sv) * 1992-01-15 1995-02-06 Rasmussen Kurt Hegelund Anordning för framställning av gasisolerade fönster

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442948A1 (fr) * 1978-12-01 1980-06-27 Saint Gobain Procede de remplissage par un gaz de l'espace delimite par les feuilles de verre d'un vitrage multiple
EP0046847A1 (fr) * 1980-08-30 1982-03-10 DCL GLASS CONSULT GmbH Dispositif pour remplir un vitrage isolant d'un gaz de remplissage
EP0056762A2 (fr) * 1981-01-17 1982-07-28 Saint Gobain Vitrage International Fabrication de vitrages multiples remplis de gaz
GB2099057A (en) * 1981-05-26 1982-12-01 Lisec Peter Apparatus for manufacture of double glazing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442948A1 (fr) * 1978-12-01 1980-06-27 Saint Gobain Procede de remplissage par un gaz de l'espace delimite par les feuilles de verre d'un vitrage multiple
EP0046847A1 (fr) * 1980-08-30 1982-03-10 DCL GLASS CONSULT GmbH Dispositif pour remplir un vitrage isolant d'un gaz de remplissage
EP0056762A2 (fr) * 1981-01-17 1982-07-28 Saint Gobain Vitrage International Fabrication de vitrages multiples remplis de gaz
GB2099057A (en) * 1981-05-26 1982-12-01 Lisec Peter Apparatus for manufacture of double glazing

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0733768A2 (fr) * 1995-03-21 1996-09-25 Peter Lisec Procédé et dispositif de dosage de gaz
EP0733768A3 (fr) * 1995-03-21 1998-05-13 Peter Lisec Procédé et dispositif de dosage de gaz
WO2003040508A1 (fr) * 2001-11-06 2003-05-15 Truseal Technologies, Inc. Procede permettant de remplir de gaz inertes un espace interieur d'unites de verre isolantes
WO2010086831A1 (fr) * 2009-02-02 2010-08-05 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé et système de remplissage optimisé d'un contenant
US8235076B2 (en) 2009-02-02 2012-08-07 American Air Liquide, Inc. Method and system for optimized filling of an enclosure
US8430133B2 (en) 2009-02-02 2013-04-30 American Air Liquide, Inc. Method and system for optimized filling of an enclosure
CN102365415B (zh) * 2009-02-02 2014-03-19 乔治洛德方法研究和开发液化空气有限公司 用于封罩的最佳充填的方法和系统
WO2012110101A1 (fr) * 2011-02-18 2012-08-23 Southwall Technologies Inc. Procédé et dispositif servant à tendre une membrane et procédé de fabrication d'un élément à plusieurs vitres
US8595994B1 (en) 2012-05-30 2013-12-03 Cardinal Ig Company Insulating glass unit with asymmetrical between-pane spaces

Also Published As

Publication number Publication date
SE8704056D0 (sv) 1987-10-19
SE8704056L (sv) 1989-04-20
SE459350B (sv) 1989-06-26

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