EP3494353A1 - Dispositif de conditionnement et procédé de conditionnement d'un milieu gazeux et installation et procédé de traitement de pièces - Google Patents

Dispositif de conditionnement et procédé de conditionnement d'un milieu gazeux et installation et procédé de traitement de pièces

Info

Publication number
EP3494353A1
EP3494353A1 EP17749434.1A EP17749434A EP3494353A1 EP 3494353 A1 EP3494353 A1 EP 3494353A1 EP 17749434 A EP17749434 A EP 17749434A EP 3494353 A1 EP3494353 A1 EP 3494353A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
conditioning
conditioning device
gaseous medium
protective gas
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.)
Withdrawn
Application number
EP17749434.1A
Other languages
German (de)
English (en)
Inventor
Mathias Moll
Harald Sonner
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.)
Eisenmann SE
Original Assignee
Eisenmann SE
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 Eisenmann SE filed Critical Eisenmann SE
Publication of EP3494353A1 publication Critical patent/EP3494353A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • 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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction

Definitions

  • the invention relates to a conditioning device for conditioning a gaseous medium to form a conditioned gaseous process medium, comprising a) an input connection unit and an output connection unit, between which a flow path for gaseous medium is formed with one or more conditioning stages, of which at least one a heat exchanger comprises; b) the heat exchanger has a heat exchanger chamber, in which a heat exchanger element is at least partially accommodated and which can be supplied to be conditioned gaseous medium, wherein there are sensitive material areas in the heat exchanger, which can be damaged by the gaseous medium.
  • the invention relates to a method for conditioning a gaseous medium and a system and a method for treating workpieces.
  • Conditioning devices of the type mentioned above are used, for example, in the automotive industry in systems for treating vehicle bodies and, in particular, in treatment booths in which coated vehicle bodies are treated as part of a painting process.
  • These include in particular paint booths, but also, for example, evaporative booths, cooling cabins and dryers, each with a treatment tunnel.
  • the tunnel air is circulated and discharged for this purpose as gaseous medium to be conditioned from the treatment tunnel and fed back to the treatment tunnel as a conditioned process medium after conditioning in a conditioning device.
  • the tunnel air contains aggressive components that are released when treating the vehicle bodies.
  • the extracted tunnel air passes through different conditioning stages in which, inter alia, aggressive components are removed and the humidity and temperature of the tunnel air are adjusted. The latter is done via heat exchangers.
  • Heat exchangers however, have sensitive areas that can be damaged by the aggressive components of the tunnel air before they are removed from the tunnel air. Such sensitive areas are present in particular at pipe joints of the heat exchanger, which are usually soldered.
  • the invention is based on the recognition that an effective protection of such sensitive areas of a heat exchanger can be achieved thereby.
  • all gases which are economically acceptable and have no undesired properties are suitable as protective gas.
  • gases which are economically acceptable and have no undesired properties are suitable as protective gas.
  • inert gases such as nitrogen or carbon dioxide can be used.
  • the existing resources are well used when gas is used from the conditioning device; this will be discussed below.
  • the protective gas could be blown directly over, for example, one or more nozzles on sensitive areas of the heat exchanger. It is more effective However, if the heat exchanger protection system comprises at least one protective housing, which surrounds one or more sensitive areas of the heat exchanger and which protective gas can be supplied via a protective gas line.
  • inert gas line is connected to the flow path or downstream of the last conditioning stage, that serving as inert gas partially conditioned gas or process medium from the Konditioniervornchtung in the protective housing can be conveyed.
  • the protective housing has at least one protective gas outlet, through which protective gas can flow into the heat exchanger chamber after flowing through the protective housing.
  • Such a heat exchanger protection system can be used particularly effectively when sensitive areas of the heat exchanger are formed by pipe joints, at which pipes or pipe sections of the heat exchanger are fluid-tightly interconnected.
  • the protective gas is particularly effective when pipes or pipe sections of the heat exchanger are welded together at pipe junctions or brazed together by soldering or brazing.
  • a connection can also be made by gluing or the like. Such joints can be effectively protected.
  • the above object is achieved in a method of conditioning a gaseous medium by using a conditioning apparatus with some or all of the features discussed.
  • a conditioning apparatus with some or all of the features discussed.
  • the above-mentioned object is achieved in that it comprises a conditioning device with some or all of the features explained.
  • the above-mentioned object is achieved by treating the workpieces in a plant with some or all of the features explained above on the plant.
  • Figure 1 shows a longitudinal section of a treatment device for treating vehicle bodies with a treatment tunnel, which is supplied by means of an air supply device conditioned process air, which was conditioned by means of a conditioning, wherein the conditioning device comprises at least one heat exchanger with a heat exchanger coil;
  • FIG. 2 shows a longitudinal section of a modified conditioning device
  • FIG 3 is a detail view of part of a heat exchanger protection system according to Figures 8 to 1 1 using the example of a heat exchanger, wherein also a control device is shown;
  • Figure 4 shows the heat exchanger of Figure 3 in a plan view
  • Figure 5 is a perspective view of a modified heat exchanger.
  • Figure 6 is a detail view of a section of the heat exchanger of Figure 5;
  • FIG. 7 is a detail view of a plate heat exchanger with a heat exchanger protection system
  • FIG. 8 shows a longitudinal section of the conditioning device according to FIG. 1 with a flow layout of the heat exchanger protection system according to a first exemplary embodiment
  • FIG. 9 shows a longitudinal section of the conditioning device according to FIG. 1 with flow layout of the heat exchanger protection system according to a second exemplary embodiment
  • FIG. 10 shows a longitudinal section of the conditioning device according to FIG. 2 with flow layout of the heat exchanger protection system according to a third exemplary embodiment
  • Figure 1 1 is a longitudinal section of the conditioning device of Figure 2 with a flow layout of the heat exchanger protection system according to a fourth embodiment
  • FIG. 12 shows a system concept for treating vehicle bodies with two treatment tunnels arranged in parallel, each with a conditioning device, which are connected to one another;
  • FIG. 13 shows a modified plant concept for treating vehicle bodies with two treatment tunnels arranged in parallel, each with a conditioning device, which are connected to one another.
  • FIGS. 1 and 2 show two differently designed conditioning devices 10.1 and 10.2 for conditioning a gaseous medium 12 into a conditioned gaseous process medium 14.
  • a conditioning device 10 will be discussed below.
  • Such a gaseous medium 12 may, for example, contain an exhaust gas, which arises during a working process.
  • the gaseous medium 12 is, for example, at least partially exhaust air 16, which is produced in a treatment device 18 with a treatment cabin 20 of a plant designated as 22 for treating workpieces 24.
  • workpieces 24 vehicle bodies are shown.
  • the workpieces 24 may also be other workpieces and in particular cultivation or Body parts of vehicle bodies such as bumpers, side mirrors or the like act. Smaller workpieces 24 may optionally be placed on a workpiece carrier not specifically shown.
  • the treatment cabin 20 of the treatment device 18 defines a working space in the form of a treatment tunnel 26 with a tunnel entrance 26a and a tunnel exit 26b, through which the workpieces 24 to be treated are conveyed by means of a conveyor system 28, as it is known per se and not must be received further.
  • the treatment tunnel 26 has an air outlet 30 and an air inlet 32, between which the conditioning device 10 is arranged, so that exhaust air 16 sucked out of the treatment tunnel 26, promoted by the conditioning device 10 and after conditioning the treatment tunnel 26 again as process air 34 in a circuit can be supplied.
  • the returned process air 34 is guided in a manner known per se via nozzles not specifically shown on the workpieces 24 to be treated.
  • the treatment tunnel 26 may also be divided into a plurality of tunnel sections, each having a separate air outlet and air inlet, which are connected to the conditioning device 10.
  • each existing tunnel section can be assigned its own conditioning device 10, so that different temperatures and treatment conditions can be set in each tunnel section, as is the most favorable for the treatment process.
  • the conditioning device 10 comprises an input connection unit 36 and an output connection unit 38, between which a flow path for gaseous medium 12 having a plurality of conditioning stages 40 is formed, and a plurality of flow chambers 42 arranged between the conditioning stages 40.
  • six conditioning stages 40 are exemplified, which include a preheating 40.1, a first filter device 40.2, a cooling device 40.3, a Nachloom worn 40.4, a humidifier 40.5 and a second filter device 40.6.
  • the conditioning device 10 comprises a supply line 48 for gaseous medium 12 to be conditioned, which opens into the input connection unit 36 and is connected on the inlet side to the air outlet 30 of the treatment device 18.
  • a valve 50 is arranged, so that the volume flow of the exhaust air 16 to the input terminal unit 36 can be adjusted.
  • the exhaust air 16 initially flows in the input connection unit 36 into an input chamber 52.
  • the input connection unit 36 of the conditioning device 10 is also connected to a fresh air line 54, via which fresh air 56 can be conducted from a fresh air source 58 into the input chamber 52.
  • a valve 56 is arranged in the fresh air line 54, so that the volume flow of the fresh air 56 to the inlet connection unit 36 can also be adjusted.
  • the exhaust air 16 from the treatment tunnel 26 also counts that the gaseous medium 12 is admixed with a proportion of admixing gas, in the present case a proportion of fresh air 56.
  • the conditioning device 10 is therefore always flowed through by a mixture of the gaseous medium 12 and fresh air 56; for the sake of simplicity, however, only the gaseous medium 12 will be discussed below.
  • a process medium line 62 with a valve 64 leads to the air inlet 32 of the treatment device 18.
  • a secondary process medium line 66 with a valve 68 leads from the outlet connection unit 38.
  • the conditioning stages 40 are arranged in the flow direction in the sequence preheating device 40.1, first filter device 40.2, cooling device 40.3, afterheating device 40.4, humidifying device 40.5 and second filter device 40.6 the blower 46 is located between the humidifier 40.5 and the second filter 40.6.
  • the blower 46 is arranged on the output side of the conditioning device 10; In the case of a modification not specifically shown, it may also be arranged downstream of the last conditioning stage 40, ie in the present case downstream of the second filter device 40.6. All conditioning stages are arranged there in series, so that they are successively flowed through by the entire gaseous medium 12.
  • the blower 46 is arranged in the inlet chamber 52.
  • the blower 46 is arranged on the inlet side of the conditioning device 10; it may also be arranged upstream of the input chamber 52 in a modification not specifically shown. This is followed by the preheating device 40.1, the first filter device 40.2, the afterheating device 40.4 in series, so that the gaseous medium 12 completely flows through these conditioning stages 40.
  • the cooling device 40.3 and the moistening device 40.5 are arranged in the flow direction behind the afterheating device 40.4, but there in parallel, so that the flow of the gaseous medium 12 is divided after the afterheating device 40.4 and a partial flow 70.1 of the gaseous medium 12 through the cooling device 40.3 and a partial flow 70.2 of the gaseous medium 12 flows through the humidifying device 40.5. Thereafter, the partial flows 70.1, 70.2 are again combined in a mixing flow chamber 42a and the gaseous medium 12 flows through the second filter device 40.6 to the outlet connection unit 38 of the conditioning device 10.2. Upstream and downstream of the afterheating device 40.4 in the partial flow 70.2, a flow chamber 42 is provided in each case.
  • the preheating device 40.1, the cooling device 40.3 and the afterheating device 40.4 are used for tempering the gaseous medium 12 and are designed as a heat exchanger 72, as exemplified in Figures 3 and 4.
  • the heat exchanger 72 comprises a housing 76 limited by a heat exchanger chamber 76, in which a heat exchanger element is housed in the form of a total of 78 designated heat exchanger coil.
  • the heat exchanger coil 78 comprises an inflow pipe 80 and an outflow pipe 82, which can only be seen in FIG. 4, for a heat exchanger medium 84, which can be gaseous or liquid.
  • the inflow pipe 80 and the outflow pipe 82 are interconnected by a plurality of heat exchanger tubes 86 which are spaced from each other.
  • a heat exchanger element is a component of a heat exchanger, which can be flowed through by heat exchanger medium 84.
  • the heat exchanger tubes 86 have a meander-shaped course and for this purpose comprise tube sections 88 running parallel to one another in a common plane, of which two adjacent ends are alternately connected to one another by a connecting tube in the form of a U-tube 90.
  • each heat exchanger tube 86 includes four parallel tube sections 88 and three U-tubes 90.
  • the heat exchange medium 84 is supplied to the inlet tube 80 and flows from there through the heat exchanger tubes 86 into the outlet tube 82, via which the heat exchange medium 84 is then removed and its own conditioning is supplied.
  • the inflow pipe 80, the outflow pipe 82, the pipe sections 88 and the U-pipes 90 are usually made of copper and at the respective pipe joints, of which only some are designated 92, connected in a fluid-tight manner in and of itself.
  • the tubes can be soldered, for example, by soldering or brazing, with correspondingly known soft solders or brazes being used accordingly.
  • the tube junctions 92 may also be formed by welding, for example, when the tubes of the heat exchanger 72 are made of stainless steel.
  • the housing 74 has an inlet 94 and an outlet 96 for the gaseous medium 12, which are designated only in FIG. 4, so that the gaseous medium 12 to be tempered can flow through the heat exchanger chamber 76 and thereby flow over the heat exchanger tubes 86, so that it flows in usual way to the desired temperature exchange on the gaseous medium 12 can come.
  • a modified heat exchanger 72 is shown, in which the inflow pipe 80 and the outflow pipe 82 not over a plurality, but via a respective connecting pipe in Form of a 90 ° arc tube 98 are connected to each other at pipe junctions 92 via a single heat exchanger tube 86 which defines a larger number of parallel pipe sections 88 than the heat exchanger tubes 86 of the heat exchanger 72 of Figures 3 and 4.
  • the flow direction of the gaseous medium 12 perpendicular to The plane defined by the tube sections 88 is illustrated in FIG. 5 by a plurality of arrows.
  • the pipe junctions 92 define sensitive material regions in heat exchanger coils 78 which can be damaged by the gaseous medium 12.
  • the exhaust air 16 from the treatment tunnel 26, which flows through the conditioning device 10, carries aggressive components with it, which attack the pipe joints 92 of the heat exchanger coil 78 and endanger the tightness of the system.
  • a heat exchanger protection system 100 is provided.
  • This includes one or more protective housings 102, each defining a protective chamber 104 and having one or more such sensitive areas, i. in the present embodiment, one or more of the pipe joints 92, surrounded.
  • Each protective housing 102 has a protective gas inlet 106.
  • the protective gas inlet 106 is connected to an outlet connection 108a of a protective gas conduit 108, which is not shown in all figures and via which a protective gas 110 can be supplied to the protective chamber 104.
  • the protective gas line 108 At its end remote from the protective gas inlet 106, the protective gas line 108 has an input connection 108b.
  • each protective housing 102 may be connected to a separate inert gas line 108 or the inert gas line 108 may be branched into a number of distribution arms 108c, each leading to a protective housing 102; The latter is shown in FIG. 3 by the example of two protective housings 102 and two distribution arms 108c of the protective gas conduit 108.
  • sensitive areas of the heat exchanger 72 can be subjected to the protective gas 110 by means of the heat exchanger protection system 100.
  • a contact of the sensitive areas with other media can be prevented.
  • the protective housing 102 has a plurality of through holes 12 through which the pipe sections 88 of the heat exchanger coil 78 extend, so that their connecting pipes, i. in the present case, the U-tubes 90 and / or the 90 ° arc tube 98 and especially the pipe junctions 92 are arranged inside the protective housing.
  • FIG. 6 illustrates this concept using the example of the heat exchanger 72 according to FIG. 5.
  • through holes 1 12 are not sealed against the pipe sections 88 or rigidly connected thereto. This takes into account possible thermal expansions of the components, which could otherwise lead to material tensions. Rather, between the through holes 1 12 and the pipe sections 88 remains an annular gap 1 14 through which the protective gas 1 10 can flow into the heat exchanger chamber 76 of the heat exchanger 72 after flowing through the protective housing 102, where it mixes with the flowing there gaseous medium 12. If a sealing connection or at least largely sealing connection between the protective housing 102 and the pipe sections 88 is possible, the protective gas housing 102 has one or more openings 12 of the protective housing 102 or annular gaps 14 several separate shielding gas outlets. Alternatively, a static pressure in the protective housing 102 can be maintained even without further outlets.
  • a modified heat exchanger 72 is again shown, which is designed as a plate heat exchanger 1 16 and as heat exchanger elements comprises a plurality of heat exchanger medium 84 Wegströmbare heat exchanger plates 1 18 fluidly via connecting pipes 120 together and on the input side with the inflow pipe 80 and the output side with the outflow pipe 82 are connected.
  • a protective housing 102 with a protective gas inlet 106 for each connecting tube 120, with a passage opening 12 of the protective housing 102 being provided next to each connecting point 92. is present, through which a respective connecting tube 120 exits at both ends of the protective housing 102 from the associated protective housing 102.
  • this embodiment remains between a heat exchanger plate 1 18, the connecting pipe 120 connected thereto and the protective housing 102 an annular gap 122, through which protective gas 1 10 can flow out of the protective housing 102 and into the heat exchanger chamber 76 inside.
  • the protective gas 1 10 acts as a barrier gas, in the case of air as sealing air, against the gaseous medium 12 in the heat exchanger chamber 76.
  • a protective gas 1 10 of the heat exchanger protection system 100 serves conditioned process medium 14 or teilkonditio- nêts gas from the conditioning device 10th Part-conditioned gas is gas taken from the conditioning device 10 before flowing into the process medium line 62, which gas is conditioned so that it can not damage sensitive areas of the heat exchanger 72, or at least less than the gaseous medium 12.
  • FIGS. 8 to 10 show various exemplary embodiments for a flow layout of the heat exchanger protection system 100, wherein in FIGS. 8 to 10 only the basic components and components bear a reference number.
  • the input connection 108 b of the protective gas line 108 is connected to the conditioning device 10. 1 downstream of the blower 46 so that protective gas 1 10 is conveyed into the protective gas line 108 by means of the blower 46.
  • the inert gas line 108 is connected to the flow chamber 42 between the blower 46 and the second filter device 40.6.
  • the inert gas line 108 may also be connected downstream of the last conditioning stage 40, eg to the output connection unit 38 or to the process medium line 62.
  • conditioned gas ie the conditioned, gaseous process medium 14 serves as protective gas 1 10.
  • an adjustment valve 124 can be arranged in the protective gas line 108, so that the proportion of the gas flowing through the conditioning device 10.1, which is taken off as inert gas 110, can be adjusted.
  • the protective gas line 1 10 leads to the preheater 40.1, where it is connected to the local protective housings 102 of the heat exchanger protection system 100; this is not visible in FIG.
  • the inert gas line 108 is connected to the heat exchanger 72 of the input-side conditioning stage 40, regardless of whether it is cooled or heated there.
  • the gaseous medium 12 to be conditioned has the strongest aggressive and corrosive action at the entrance of the conditioning device 10, since there has not yet been any treatment of the gaseous medium 12, apart from the possible addition of fresh gas.
  • the heat exchangers 72 in subsequent conditioning stages 40 need not be integrated into the heat exchanger protection system 100; Protective housing 102 are then not provided there accordingly.
  • one or more further conditioning stages 40 in which a heat exchanger 72 is present, may also be integrated into the heat exchanger protection system 100, and the protective housings 102 there connected to the protective gas conduit 108, for which purpose the latter then branches into a corresponding number of side arms , which in turn optionally aufgabeln again in required distribution arms 108c.
  • a separate protective gas line 108 can also lead to each possible conditioning stage 40.
  • all existing conditioning stages 40 of the conditioning apparatus 10. which have heat exchangers 72, are integrated into the heat exchanger protection system 100.
  • these are the preheating device 40.1, the cooling device 40.3 and the afterheating device 40.4.
  • the side arms of the inert gas line 108 which have just been discussed above, are designated 108d.
  • the input connection 108b of the protective gas line 108 is connected to the conditioning device 10 upstream of the blower 46.
  • the inert gas line 108 is connected there to the flow chamber 42 between the afterheating device 40.4 and the humidifier 40.5.
  • a separate inert gas blower 126 is arranged in the protective line 108 so that protective gas 1 10 can be withdrawn from the conditioning device 10.2 and conveyed to the connected conditioning stages 40.
  • the inert gas blower 126 is also shown in FIG.
  • the protective gas line 108 extends between the flow chamber 42 which is arranged upstream of the afterheating device 40.4 and humidifier 40.5 and the first conditioning stage 40 in the flow direction, in this case the preheating device 40.1.
  • the exemplary embodiment according to FIG. 11 shows a variant in the conditioning device 10.2, in which the inlet connection 108b of the protective gas line 108 is connected to the flow chamber 42, which is located between the afterheating device 40.4 and the local mixed flow chamber 42a.
  • the inert gas line 108 leads from there via side arms 108d to the first two conditioning stages 40, which comprise a heat exchanger 72; these are the preheating device 40.1 and the cooling device 40.3.
  • FIG. 3 additionally illustrates a control device 128 of the heat exchanger protection system 100.
  • This comprises a control unit 130, by means of which the adjustment valve 124 and / or the inert gas blower 126 can be controlled, if present.
  • the control device 128 includes sensors 132, with which predetermined properties of the protective gas 1 10 can be detected. In practice, these are moisture sensors. Data and control lines are dash-dotted lines in Figure 3 and shown without its own reference number.
  • Figures 12 and 13 show a modified system 22, which have two treatment devices 18.1 and 18.2, which can be operated in parallel. Each treatment device 18.1, 18.2 comprises its own conditioning device 10.
  • a further adjusting valve 138 may be provided upstream of the branching point, as well as in the secondary line 136.
  • the protective gas line 108 of the conditioning device 10 of the treatment device 18.1 can also branch into a plurality of such secondary lines 136, to which the conditioning device 10 of the treatment device 18.2 is connected.
  • the protective gas lines 108 of the two conditioning devices 10 of the treatment devices 18. 1 and 18. 2 have a common line section 140, so that a kind of crossover guidance of the protective gas lines 108 is established.
  • the inert gas blower 126 is arranged in this common line section 140. In this way, the protective gas 110 can be distributed from both conditioning devices 10 to the respective heat exchangers 72 or the protective housings 102 present there.
  • protective gas conditioning unit 142 may additionally be provided in protective gas line 108, with which protective gas 110 may optionally be additionally conditioned for its intended purpose.
  • the shielding gas conditioning unit 142 may be designed as a dehumidifier if the protective gas 110 of the conditioning device 10 would be removed only after the moistening device 40.5. Too moist inert gas 1 10 could unnecessarily stress the pipe joints 92. But also heating or cooling units or combinations with different acting units can be provided.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Ventilation (AREA)

Abstract

L'invention concerne un appareil de conditionnement, destiné à conditionner un milieu gazeux (12) dans un milieu de traitement gazeux conditionné (14), qui comprend une unité de raccordement d'entrée (36) et une unité de raccordement de sortie (38) entre lesquelles est formé un chemin d'écoulement, destiné à un flux gazeux (12), qui comprend un ou plusieurs étages de conditionnement (40) dont au moins un comprend un échangeur de chaleur (72). L'échangeur de chaleur (72) comporte une chambre d'échangeur de chaleur (76) dans laquelle un élément échangeur de chaleur (78 ; 118) est au moins partiellement logé et qui doit être alimentée en milieu gazeux (12) à conditionner. Des zones de matière sensibles sont prévues dans l'échangeur de chaleur (72), lesquelles peuvent être endommagées par le milieu gazeux (12). Un système de protection d'échangeur de chaleur (100) est prévu au moyen duquel ces zones sensibles de l'échangeur de chaleur (72) peuvent être sollicitées par un gaz de protection (110). De plus, l'invention concerne un procédé de conditionnement d'un milieu gazeux ainsi qu'une installation et un procédé de traitement de pièces.
EP17749434.1A 2016-08-04 2017-08-03 Dispositif de conditionnement et procédé de conditionnement d'un milieu gazeux et installation et procédé de traitement de pièces Withdrawn EP3494353A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016114466.5A DE102016114466A1 (de) 2016-08-04 2016-08-04 Konditioniervorrichtung und Verfahren zum Konditionieren eines gasförmigen Mediums sowie Anlage und Verfahren zum Behandeln von Werkstücken
PCT/EP2017/069735 WO2018024853A1 (fr) 2016-08-04 2017-08-03 Dispositif de conditionnement et procédé de conditionnement d'un milieu gazeux et installation et procédé de traitement de pièces

Publications (1)

Publication Number Publication Date
EP3494353A1 true EP3494353A1 (fr) 2019-06-12

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EP17749434.1A Withdrawn EP3494353A1 (fr) 2016-08-04 2017-08-03 Dispositif de conditionnement et procédé de conditionnement d'un milieu gazeux et installation et procédé de traitement de pièces

Country Status (5)

Country Link
US (1) US20190186836A1 (fr)
EP (1) EP3494353A1 (fr)
CN (1) CN109416232A (fr)
DE (1) DE102016114466A1 (fr)
WO (1) WO2018024853A1 (fr)

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JP7341779B2 (ja) * 2019-08-05 2023-09-11 株式会社大気社 塗装ブース用の空調装置
CN112374722B (zh) * 2020-10-30 2021-11-02 上海市政工程设计研究总院（集团）有限公司 一种污泥流化床干化机

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US20190186836A1 (en) 2019-06-20
DE102016114466A1 (de) 2018-02-08
CN109416232A (zh) 2019-03-01

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