KR20210005531A - Humidifying apparatus for transmitting water and/or water vapour, method for operating a humidifier and motor vehicle having such a humidifying apparatus - Google Patents

Abstract

The present invention relates to a humidifying device (1) for transmitting water and/or vapor from a first fluid flow (2) to a second fluid flow (3). To this end, the humidifying device comprises humidifier (4) which comprises: a plate laminate (7); each of two housing connectors (9, 10) arranged on front side of a plate laminated installation surface (8) of the plate laminate (7); and a fluid channel system (11). Basically, according to the present invention, the plate laminate (7) is arranged inside a fluid channel housing (12).

Description

A raid device for delivering water and/or steam, a method of operating a raid ambulance, and a vehicle having such a raid device BACKGROUND OF THE INVENTION 1.

The present invention relates to a raid device for delivering water vapor according to the preamble of claim 1. In addition, the present invention relates to a method of operating a ambulance and a vehicle having such a raid device.

Humidifiers for transferring water vapor from one fluid flow to another fluid flow have been known for a long time in the automotive field, and are particularly important in connection with the drive-related applications of fuel cells. At the same time, in order to be able to provide an optimum power yield with a relatively long service life/life, fuel cells used for automobile drives are generally operated at temperatures of up to 80°C.

As a result of the relatively high operating temperature, for example when the fuel cell is a proton exchange membrane (PEM) or a polymer electrolyte membrane, the fuel cell must remain relatively humid due to its function during operation of the motor vehicle drive. Otherwise, drying of the membrane employed in the fuel cell may occur. This drying has a particularly negative effect on the service life/life of the membrane employed and the efficiency of the fuel cell.

As is known, the fuel cell is kept moist in that the reaction gas guided through the fuel cell is enriched to an appropriate degree with moisture, which can be achieved, for example, by a humidifier integrated into the fuel cell. Typical raiders known from the prior art, for example raiders for fuel cell systems according to publication DE 11 2012 000 477 T5, incorporate a plate stack constructed of individual plates pierced by two or more fluid channels of a fluid channel system. Have. The fluid channels are routed within the plate stack so that water and/or water vapor can go from one fluid flow to another; A membrane plate substantially impermeable to air but permeable to water and water vapor is arranged between the fluid channels, through which a fluid flow that will raid one side of the membrane plate, for example, flows and a wet fluid flow flows through the other side. And/or water vapor may go from one fluid flow to another. The two fluid flows are fluidly separated from each other by a membrane plate such that no material mixing of the two fluid flows occurs.

The fact that the plate stack must be sealed against the periphery is considered disadvantageous to known solutions. Since the fluid flowing through the fluid channel is generally under a high operating pressure, e.g. up to 2.0 bar for an ambient pressure of 1013.25 hPa, all plates of the plate stack are to ensure or improve the sealing effect of the employed sealant. They must be additionally clamped together with each other with relatively large clamping forces. In known humidifiers, this leads to an increase in flow resistance and thus the efficiency of the flow deteriorates.

Accordingly, it is an object of the present invention to provide an improved or at least another embodiment for a raid device.

In the present invention, this object is solved in particular through the subject matter of the independent claims. Advantageous embodiments are the subject of the dependent claims and the detailed description.

The basic idea of the present invention is to reduce the clamping force for the mutually joint clamping of the plates to positively affect the flow resistance in the plate stack. Here, the present invention takes advantage of the innovative realization that the required clamping force is dependent on the amount of pressure gradient that occurs during the operation of the raiders. The rule is that the smaller the pressure gradient during the operation of the ambulance, the smaller the clamping force for the mutually joint clamping of the plate can be chosen.

Before this background, the present invention provides for a reduction of the pressure gradient in the raid device. For this purpose, the raiding device includes a raiding device. The air raid has a plate stack, two housing connectors each arranged on the front side of the plate stack, an installation surface of the plate stack, and a fluid channel system. Further, the plate stack forms a longitudinal axis along its main extension direction. The longitudinal axis may for example form a line-up direction, in which one or more or a plurality of plates or groups of plates are provided which are tangentially stacked on top of each other to form a plate stack. Further, in any case, the plate stack is arranged in the fluid channel housing of the air raid unit, in particular completely therein. The fluid channel housing is substantially pressurable or ventable, so that the pressure difference or pressure gradient between the fluid channel housing and the remaining fluid channel system can be freely adjusted. For example, a relatively small pressure difference or a relatively small pressure gradient can be adjusted thereby, and thus a small clamping force for clamping the plate stack together can be selected, resulting in a positive effect on the flow resistance in the plate stack. Can give. This has the advantage that the raid device as a whole can be operated more energy-efficiently and thus more cost-effectively and environmentally advantageously.

In practice, the fluid channel housing is tangentially arranged on the two housing connectors in a detachable or non-separable manner. Here, the fluid channel housing can obviously be an integral part of the housing connector, that is to say it can be formed integrally with the housing connector, thus forming a fluid channel housing-housing connector component. However, it may also be provided substantially for the fluid channel housing to be formed as a separate part and arranged in each case on the housing connector, for example by means of fastening means such as fastening screws and/or adhesives. For example, the fluid channel housing can be disposed as an insert part between the housing connectors along the longitudinal axis and can be axially rigidly clamped between the housing connectors to permanently fix the fluid channel housing to the housing connector. This has the advantage that the humidifier can be produced more advantageously. In addition, the fluid channel housing is substantially capable of receiving fluid pressure by the fluid channel system of the raid device or the pressure supply device in order to affect the pressure difference in the fluid channel system. This has the advantage that the pressure difference or pressure gradient between the fluid channel housing and the rest of the fluid channel system can be adjusted.

Substantially, the fluid channel system comprises one or more fluid channels formed between the plate stack on one hand and the fluid channel housing on the other through which the first fluid flow or the second fluid flow flows. Because of this, a fluid, for example a compressible process gas filled with a liquid, can flow through the fluid channel housing. Further, substantially, a clear flow cross section of the fluid channels arranged transversely on the basis of the longitudinal axis is defined between the plate stack on one side and the fluid channel housing on the other side. In particular, the flow cross-section is designed to completely fram the plate stack toward all sides, ie transversely to the longitudinal axis throughout. This has the advantage that the plate stack can receive pressure evenly from all sides, and as a result, the energy efficiency of the raid device is further improved. In addition to this, it can be provided substantially that a constant gap is formed throughout in the transverse direction with respect to the longitudinal axis between the plate stack and the fluid channel housing. This has the advantage that the plate stack does not contact the fluid channel housing.

In practice, one or more drainage channels may be provided on the fluid channel housing, each of which serves to drain a fluid, for example a leaky fluid or other fluid originating from the plate stack. Here, the drainage channel can preferably extend along the fluid channel housing, for example along the longitudinal axis of the fluid channel housing. Here, the drainage channel may protrude transversely to the longitudinal axis over the fluid channel housing and form a drainage channel protrusion. In this connection, it may also be provided that the drainage channel forms a drainage channel longitudinal axis along its main extension direction, and that the drainage channel is arranged on the fluid channel housing at an angle. A drainage angle, for example from 0.1° to 5°, in particular 0.1°; 0.5°; 1.0°; 1.5°; 2.0°; 2.5°; 3.0°; 3.5°; 4.0°; 4.5°; A drainage angle of 5.0° is formed between the longitudinal axis and the longitudinal axis of the drainage channel. This has the advantage that the leaking fluid can automatically flow out of the humidifier, for example into a leaky fluid reservoir arranged on the fluid channel housing. Here, the entire housing is also at an angle to the direction of gravity, in particular 0.1°; 0.5°; 1.0°; 1.5°; 2.0°; 2.5°; 3.0°; 3.5°; 4.0°; 4.5°; It can be arranged at an angle of 5.0°. Further, on one or both housing connectors, there may be one or more drainage connections through which leakage fluid can be discharged. The drain connection allows the discharge of a fluid, for example a drain fluid, which may comprise, for example, a liquid or gas. It is conceivable that the drain connection part is, for example, in the form of a connector so that a hose or the like can be fixed thereto.

Alternatively, the drainage connection may be arranged directly on the housing, in particular contact-wise.

Substantially, the fluid channel housing has first and second fluid channel arrangements, both of which extend through the plate stack, in particular completely through the plate stack. Here, the first fluid channel arrangement and the second fluid channel arrangement are plated for transferring water and/or water vapor from the first fluid flow to the second fluid flow, for example via a membrane plate described below. They can be interconnected with each other in the stack. The first fluid channel arrangement, or alternatively the second fluid channel arrangement, is connected substantially in communication with the fluid channel to effect pressurization of the fluid channel housing.

In addition, the first fluid channel arrangement may include one or more first and second plate stack fluid channels extending in a direction of a longitudinal axis through the plate stack, and the first plate stack fluid channel includes at least one first plate stack fluid channel. It is inter-communicatively connected to the second plate stack fluid channel through one cross flow passage. In addition, it is substantial that the second fluid channel arrangement comprises one or more first and second functional fluid channels extending through the plate stack in the direction of the longitudinal axis, the first functional fluid channel being at least one second cross flow passage In communication with the second functional fluid channel. In this way, the first and/or second fluid flow can be guided through the humidifier. In addition, the first functional fluid channel is the fluid of the fluid channel system defined between the fluid channel housing and the plate stack through at least one inlet opening of the plate stack so that the fluid channel housing is subjected to pressure, in particular internal pressure. It can be interconnected individually or jointly to the channel.

The mentioned plate stacks may in particular comprise a plurality of groups of stacks that are laminated in contact with each other in the line-up direction. Each of the stacks group comprises a plurality of plates substantially placed in contact with each other, i.e. at least one cross flow plate, at least one air or gas tight, water and water vapor permeable membrane plate and at least one inlet plate. Have. For example, during the operation of the raid device, the group of stacks is precisely a cross-flow plate, a membrane plate tangibly arranged on the cross-flow plate, an inlet plate tangentially arranged on the membrane plate, and on the inlet plate. It may be provided to include a membrane plate arranged in a contact manner. As such, a relatively efficient group of stacks is described, whereby the fluid channels can be relatively advantageously exposed to pressures and fluids guided through the plate stack.

The cross flow plate is formed, for example, by a flat body comprising a flat large front surface and a flat large rear surface oriented opposite it. The flat body includes a recess that defines a first cross flow passage starting from the large front surface and completely penetrating the flat body to the large rear surface, thus forming a flat body frame. Here, the flat body frame is substantially in each case arranged from a large front surface to a large rear surface, in particular a first and second passageway passing through the flat body frame while completely forming the first and second plate stack fluid channels. Have a sieve. In either case, the flat body frame comprises a third passageway arrangement which in each case completely penetrates the flat body frame from the large front surface to the large rear surface, forming a substantially first functional fluid channel. Here, the first and second passage arrangements are interconnected in communication through the first cross flow passage, so that during operation of the raid device the first or second fluid flow is from the first plate stack fluid channel to the second It may flow into the plate stack fluid channel or vice versa.

The inlet plate is formed by a substantially flat inlet body. It has a large anterior surface and a flat large posterior surface oriented opposite it. In addition, the flat inlet body may comprise a recess defining a second cross flow passage that particularly completely penetrates the flat inlet body starting from the large front surface to the large rear surface. For this reason, a flat inlet body frame is formed. In either case, the flat inlet body frame has first and second plate stack fluid channels completely penetrating in each case the flat inlet body frame, forming first and second plate stack fluid channels from the large front surface to the large rear surface in each case. It may include a second passage arrangement. The flat inlet body frame may include a third passage arrangement and at least one inlet opening. The third passage arrangement passes through the flat inlet body frame while forming a first functional fluid channel. That is, the inlet opening opens the flat inlet body frame toward at least one side surface while forming an opening into the fluid channel. Because of this, the first and second fluid flows can flow from the third passage arrangement to the fluid channel or vice versa.

Each of the first, second and third passage arrangements may be formed by at least one recess. Each individual recess has a circular, elliptical or rectangular clear flow cross section, so that fluid can flow through them.

Substantially, the housing connector has first and second fluid connections, respectively. The first fluid connection of the first housing connector and the first fluid connection of the second housing connector are substantially fluidly connected to the first fluid channel arrangement, the second fluid connection of the first housing connector and the second housing connector. The second fluid connection is fluidly connected to the second fluid channel arrangement.

Here, it is conceivable that the fluid channel housing is detachably or non-separably fastened to the housing connector by a fastening screw or an adhesive. Alternatively, one or both housing connectors may be integrally molded on the fluid channel housing. In either case, the fluid channel housing functions as a fixed stop, since the plate stack arranged in the fluid channel housing allows only predefined clamping by the fluid channel housing via the housing connector arranged on the fluid channel housing. You can take it.

The invention encompasses a further idea of providing a method for operating a ambulance, in particular a ambulance having the aforementioned features. Within the scope of the method, the steps of providing and introducing first and second fluid flows into the humidifier are initially provided. Subsequently, providing a first pressure level to the first fluid channel arrangement, providing a second pressure level to the second fluid channel arrangement, and providing a third pressure level within the fluid channel housing are provided, , The third pressure level lies between the standard atmospheric pressure of 1013.25 hPa and the first or second pressure level, the third pressure level lies between the first pressure level and the second pressure level, or the third pressure level is 1013.25 hPa It is provided to lie above the standard atmospheric pressure of and above the first and/or second pressure level. Thereby, in each case, it is achieved that the pressure difference between the first fluid channel arrangement and the second fluid channel arrangement and the fluid channel housing is minimized so that the humidifier can be operated relatively energy-efficiently. This results in the advantage that the pressure difference in the humidifier is lower compared to the humidifier known from the prior art.

The present invention encompasses the further idea of installing a raid device in a motor vehicle to transfer water and/or water vapor from a first fluid flow to a second fluid flow. For this purpose, a humidifier is proposed comprising a plate stack, two housing connectors each arranged on the front side of the plate stack mounting surface of the plate stack, and a fluid channel system. The plate stack includes a plurality of stack plates that are laminated in a contact manner over each other in a line-up direction forming a longitudinal axis. The fluid channel system includes at least two fluid channel arrangements, and the first fluid channel arrangement includes a plate stack fluid channel extending through the stack plate along a direction of a longitudinal axis. The second fluid channel arrangement has a functional fluid channel including a functional fluid channel plate stack passage extending through the stack plate along a direction of the longitudinal axis and a functional fluid channel housing passage connected to the functional fluid channel plate stack passage. . Here, the functional fluid channel plate stack passages and the plate stack fluid channels are interconnected in communication with each other within the stack plate to convey water and/or water vapor. Now, the laminate plate is arranged in or completely within the functional fluid channel housing passage, and the at least one laminate plate is the functional fluid channel plate to create a fluid connection between the functional fluid channel plate laminate passage and the functional fluid channel housing passage. Essentially it opens towards the housing passage.

In practice, the membrane plate is formed from a flat membrane body, in particular air-tight, water and water vapor permeability and/or circular, elliptical or polygonal. The flat membrane body has a flat large front surface and a flat large rear surface arranged opposite it. For example, the membrane plate may, during operation of the raid device, between the cross flow passage and the inlet cross flow passage, the second fluid channel from the first fluid flow through which water and/or water vapor flows through the first fluid channel arrangement. Arranged to convey a second fluid flow flowing through the arrangement.

In summary, it should be noted that the present invention relates to a raid device for transferring water and/or water vapor from a first fluid flow to a second fluid flow. To this end, the raid device comprises a plate stack forming a longitudinal axis along the main extension direction, in each case two housing connectors arranged on the front side of the plate stack mounting surface of the plate stack, and a fluid channel system. Includes raiders. In the present invention, it is essential that the plate stack is arranged within the fluid channel housing.

Further important features and advantages of the invention are obtained from the subclaims, from the drawings, and from the associated drawing description by means of the drawings.

It is to be understood that the features mentioned above and continuing to be described below may be used in each combination described within the scope of the present invention, as well as in other combinations or as such.

Preferred exemplary embodiments of the present invention are shown in the drawings and described in more detail in the following description, wherein the same reference numerals refer to the same or similar or functionally identical components.

The drawings schematically show in each case:
1 is a perspective view of a raid device,
Fig. 2 is the raid device from Fig. 1, wherein the fluid channel housing has been removed so that the plate stack clamped between the two housing connectors can be seen better,
FIG. 3 is a cross-sectional view of the raiding device from FIG. 1 according to section line III-III from FIG. 1, showing the plate of the plate stack of the raiding device, i.e. the inlet plate,
FIG. 4 shows in plan view an additional plate of the plate stack of the raid device from FIG. 1, i.e. the cross flow plate,
FIG. 5 shows in plan view an additional plate, ie a membrane plate, of the plate stack of the raid device from FIG. 1;

Briefly, FIGS. 1 to 5 show a raid device 1 serving to transfer water and/or steam from the first fluid flow 2 to the second fluid flow 3. To this end, the raid device 1 comprises a raid unit 4 and a fluid supply device for supplying a fluid to the raid unit 4, which is connectable to the ambulance unit 4 and is not shown in the drawing. In the automotive field, the raid device 1 serves, for example, to keep the fluid guided through the fuel cell relatively humid. In the following, reference is made to the individual drawings.

In FIG. 1, one can see a raid device 1 substantially comprising a raid unit 4. The humidifier 4 illustratively includes two housing connectors 9, which are respectively arranged on the front side of the plate stack 7 shown in Fig. 2 and the plate stack mounting surface 8 of the plate stack 7 10), and the fluid channel system 11 shown in FIG. 2. The humidifier 4 extends along the main extension direction 5, along which a longitudinal axis 6 and a transverse axis 55 oriented transversely to the longitudinal axis 6 are formed. The vertical axis 6 and the horizontal axis 55 are indicated in FIGS. 1 and 2 by dotted lines, respectively. The humidifier 4 has a fluid channel housing 12 that completely surrounds the plate stack 7. The fluid channel housing 12 is preferably a thin-walled component that can be embodied as one part or as a number of parts. The fluid channel housing 12 is preferably made of a plastic material or alternatively of a metallic material or of a composite material.

Further, in FIG. 1, it can be seen that on the plate stack mounting surface 8 of the plate stack 7 a first housing connector 9 and a second housing connector 10 are arranged. Each of the housing connectors 9, 10 has an exemplary cubic basic body and is preferably made of a plastic material or alternatively of a metal material or of a composite material. In addition, in each housing connector 9, 10, in particular, by connecting means for connecting the respective main body to the fluid channel housing 12 and/or another main body and a connection for connecting the fluid guide fluid line, respectively. Reinforcement material is installed to reinforce the basic body of the unit. The first housing connector 9 and the second housing connector 10 according to FIG. 1 are denoted as first and second fluid connections 53, 54, and the first fluid flow 2 and the second fluid flow 3 Each includes two connecting portions serving to introduce or discharge. In Fig. 1, the fluid flows 2 and 3 are indicated by arrows respectively; The flow direction shown may be realized so as to be oriented clearly opposite or identically.

Further, in FIG. 1, a drainage channel protrusion 17 arranged on the fluid channel housing 12 can be seen, through which drainage fluid or leakage fluid can be discharged from the raid device 1. The drain channel 16 defined by the drain channel protrusion 17 or the drain channel protrusion 17 as seen in FIG. 3 forms a drain channel longitudinal axis 18 along its main extension direction. In Fig. 1, the longitudinal axis of the drainage channel 18 is indicated by a dotted line. A drainage angle 19 is defined between the drainage channel longitudinal axis 18 and the longitudinal axis 6, so that the drainage channel protrusion 17 is arranged at an angle on the fluid channel housing 12, so to speak. The drainage angle 19 reaches, for example, 1° or any other acute angle. This means that the drainage fluid or leakage fluid is automatically drained from the drainage channel protrusion 17, and is pumped or drained through the drainage connection 56 arranged on the first and/or second housing connectors 9, 10. Has an effect that can be

In FIG. 2, the fluid channel housing 12 has been removed so that the plate stack 7 of the humidifier 4 can be seen. The plate stack 7 extends along the longitudinal axis 6, and the plate stack is contacted in the line-up direction 29 oriented parallel to the longitudinal axis 6 and, for example, a seal and /Or have a plurality of plates 31 stacked on top of each other by receiving intermediate connections of the sealing pool. As mentioned, the plate stack 7 forms a total of two plate stack mounting surfaces 8 on its free front end on which the described housing connectors 9 and 10 are arranged. The plates 31 of the plate stack 7 can form a plurality of stack groups 30 each constructed of different plate types 31, for example. Illustratively, one or more groups of stacks 30 each constructed of a cross flow plate 32, a membrane plate 33, an inlet plate 34 and/or another plate described in more detail below Is provided.

In any case, in FIG. 2 a fluid channel system 11 passing through the plate stack 7 is further shown. The fluid channel system 11 illustratively includes first and second fluid channel arrangements 20 and 21 serving to guide fluid from the fluid connections 53 and 54 to the respective other fluid connections 53 and 54. ). The first fluid channel arrangement 20 comprises one or more plate stack fluid channels 22, 23 extending through the plate stack, for example in the direction of the longitudinal axis 6. The second fluid channel arrangement 21 has one or more functional fluid channels 25 which likewise extend through the plate stack 7 in the direction of the longitudinal axis 6 for example. The plate stack fluid channels 22, 23 and the functional fluid channels 25 are arranged in the plate stack 7 relatively close together and separated from each other only by the membrane plate 33, so that water and/or water vapor It can be transferred from the first fluid flow 2 to the second fluid flow 3 through the plate 33.

In FIG. 3, a cross-sectional view of the raid device 1 or the ambulance 4 from FIG. 1 is shown along the section line III-III. The cross-sectional view shows the mentioned drainage defined by two plates 31, namely the inlet plate 34 of the stack group 30 and the membrane plate 33 of the same stack group 30 and the fluid channel housing 12 Channel 16 is shown. Further, the horizontal axis 55 introduced in FIG. 1 and the vertical axis 52 oriented orthogonal thereto are shown. On the fluid channel housing 12, a drainage channel protrusion 17 can be seen that projects away from the plate stack 7 in the direction of the transverse axis 55 and forms a drainage channel 16. The fluid channel 13 of the fluid channel system 11 through which the first fluid flow 2 or the second fluid flow 3 can flow is confined between the plate 31 and the fluid channel housing 12, clearing A flow cross section 14 is formed. The flow section 14 is configured to frame the plate 31 completely like an island in the direction of the transverse axis 55 and the vertical axis 57, ie towards all sides. Here, a constant gap 15 is formed over the entirety between the plate 31 and the fluid channel housing 12, so that the fluid channel housing 12 is not placed in contact with the plate 31 or the raid device ( During the operation of 1), it does not hit the plate by vibration.

The inlet plate 34 according to FIG. 3 has a flat inlet body 43 comprising a flat large front surface 44 and a flat large rear surface 45 oriented opposite thereto. In addition, the flat inlet body 43 is a so-called second cross flow passage that completely penetrates the flat inlet body 43 from the large front surface 44 to the large rear surface 45 while forming the flat inlet body frame 46. It has a central, in particular, large-area recess 38 forming 27. Illustratively, the flat inlet body frame 46 has a base portion 60 and two leg portions 58, 59 arranged thereon. In addition, the flat inlet body frame 46 includes first and second passage arrangements 47 that completely penetrate the flat inlet body frame 46 while forming the first and second plate stack fluid channels 22 and 23. , 48). In addition to the first and second passage arrangements 47, 48, the flat inlet body frame 46 further comprises a third passage arrangement 49 and at least one inlet opening 28, wherein the first passage arrangement The sieve 49 completely penetrates the flat inlet body frame 46 forming the first functional fluid channel 25. The inlet opening 28 opens the flat inlet body frame 46 toward at least one side while forming an opening 51 into the fluid channel 13, so that the first or second fluid flow 2, 3 It may flow from the three passage arrangement 49 through the second cross flow passage 27 to the fluid channel 13 or vice versa. When flowing through the second cross flow passage 27, for example water and/or water vapor can be transmitted through the membrane plate 33. The passage arrangements 47, 48, 49 or plate stack fluid channels 22, 23 and the functional fluid channels 25 each have a clear flow cross section 52.

The orientation of the channels shown in Fig. 3 does not correspond to the actual installation position in each case. Preferably, the drainage channel 16 is directed downwards, in particular in the direction of gravity, so that any fluid separated therein, in particular water, can be collected and drained therein. In addition to this, the raid device 1 can also be installed particularly at an angle to the direction of gravity, so that water can be drained in the direction of gravity.

In FIG. 4 two plates 31 are shown, namely a cross flow plate 32 and a membrane plate 33 arranged behind it. The membrane plate 33 rests in contact with the cross flow plate 32. In practice, the cross-flow plate 32 is formed by a flat body 35 having a flat large front surface 36, such as the inlet plate 34, and a flat large rear surface 37 oriented opposite it. The flat body 35 also completely penetrates the flat body 37 from the large front surface 36 to the large rear surface 37, forming a flat body frame 39, the so-called first cross flow passage 24 It has a central, in particular, a relatively large-area recess 38 forming. The flat body frame 39 is likewise penetrated by the first and second passage arrangements 47, 48, so the flat body frame 39 comprises two plate stack fluid channels 22, 23. The flat body frame also has a third passage arrangement 49 passing through the flat body frame 39 while forming a functional fluid channel 25. In either case, the first and second passage arrangements 47, 48 can communicate with each other via the first cross flow passage 24, so that the fluid flows from one plate stack fluid channel 22 to another plate. It can flow into the stack fluid channel 23. When flowing through the first cross-flow passage 24, for example water and/or water vapor can be transmitted through the membrane plate 33.

According to FIG. 5 an additional plate 31, ie a membrane plate 33, can be seen. It is in particular formed by air tightness, water and water vapor permeability and/or a flat membrane body 61 of circular, elliptical or polygonal shape. The flat membrane body 61 has a flat large front surface 62 and a flat large rear surface 63 arranged opposite it. For example, the membrane plate 33 may transfer water and/or water vapor between the cross-flow plate 33 and the inlet plate 34 during operation of the raid device 1 to the first fluid channel arrangement 20. Arranged to transfer from a first fluid flow 2 flowing through to a second fluid flow 3 flowing through the second fluid channel arrangement 21, the membrane plate being the first and second cross flow passages 24 , 27) are separated from each other. In addition, the membrane plate 33 comprises three passage arrangements 47, 48, 49.

During the operation of the raid device 1, the plates 31 described are arranged in contact with each other and in particular coincidentally, so that they form a plate stack 7. The passage arrangements 47, 48, 49 of each plate 31 lie on top of each other, so they are the plate stack fluid channels 22, 23 of the first fluid channel arrangement 20 and Together they form the functional fluid channels 25 of the second fluid channel arrangement 21.

Claims (13)

A raid device (1) for transferring water and/or water vapor from a first fluid flow (2) to a second fluid flow (3),
-Two housing connectors 9, each arranged on the front side of the plate stack 7 forming the longitudinal axis 6 along the main extension direction, the plate stack mounting surface 8 of the plate stack 7 10), And in the raid device (1), having a humidifier (4) comprising a fluid channel system (11),
-Raid device (1), characterized in that the plate stack (7) is completely arranged in the fluid channel housing (12). The method of claim 1,
The fluid channel housing 12 is arranged in a contact manner on the two housing connectors 9, 10 in a detachable or non-separable manner, in order to influence the pressure difference in the fluid channel system 11, the raid device ( Raid device (1), characterized in that it can receive fluid pressure by means of a fluid channel system (11) or a pressure supply device of 4). The method according to claim 1 or 2,
The fluid channel system 11 is a fluid channel 13 formed between the plate stack 7 and the fluid channel housing 12 through which the first fluid flow 2 or the second fluid flow 3 can flow. ), and/or
-Between the plate stack 7 on one side and the fluid channel housing 12 on the other side, a clear flow cross section 14 of the fluid channels 13 arranged in the transverse direction based on the longitudinal axis 6 is defined, And/or
The flow section 14 completely frames the plate stack 7 in the transverse direction with respect to the longitudinal axis 6 towards all sides, and/or
-Between the plate stack (7) and the fluid channel housing (12), in a direction transverse to the longitudinal axis (6), a raid device (1), characterized in that a certain gap is formed throughout. The method according to any one of claims 1 to 3,
-On the fluid channel housing 12, a drain channel 16 for discharging the leaking fluid from the humidifier 4 is arranged, and/or
The drainage channel 16 extends on the fluid channel housing 12 along the longitudinal axis 15, forming a drainage channel protrusion 17, and is attached to the fluid channel housing 12 transversely to the longitudinal axis 6 Protrudes over, and/or
-The drainage channel 16 forms a drainage channel longitudinal axis 18 along its main extension direction, and the drainage channel 16 has a longitudinal axis 6 and a drainage channel in order to discharge the leaked fluid from the humidifier 4 It is arranged at an angle on the fluid channel housing 12 so that a drainage angle 19 of in particular 0.1° to 5° is formed between the longitudinal axes 18, and/or
-Raid device (1), characterized in that on one or both housing connectors (9, 10) there is at least one drain connection through which leakage fluid can be discharged. The method according to any one of claims 1 to 4,
The fluid channel system 11 also comprises first and second fluid channel arrangements 20 and 21 extending through the plate stack 7 respectively,
-The first fluid channel arrangement 20 and the second fluid channel arrangement 21 in the plate stack 7 transfer water and/or water vapor from the first fluid flow 2 to the second fluid flow 3 Are connected in communication with each other to convey,
-Characterized in that the first fluid channel arrangement (20) or the second fluid channel arrangement (21) are interconnected with each other for pressurization of the fluid channel housing (12) by the fluid channel (13). Raid device (1). The method of claim 5,
-The first fluid channel arrangement 20 comprises at least one first plate stack fluid channel 22 extending through the plate stack 7 in the direction of the longitudinal axis 6,
-The first fluid channel arrangement 20 also comprises at least one second plate stack fluid channel 23 extending through the plate stack 7 in the direction of the longitudinal axis 6,
-The first plate stack fluid channel 22 is interconnected in communication with the second plate stack fluid channel 23 via at least one first cross flow passage 24,
-The second fluid channel arrangement 21 comprises one or more functional fluid channels 25 extending through the plate stack 7 in the direction of the longitudinal axis 6,
-At least one inlet opening 28 to the fluid channel 13 of the fluid channel system 11, wherein the functional fluid channel 25 is each or jointly defined between the fluid channel housing 12 and the plate stack 7 Raid device (1), characterized in that the interconnection is connected to each other through communication. The method according to any one of claims 1 to 6,
-The plate stack 7 includes a plurality of stack groups 30 stacked in a contact manner on top of each other in the line-up direction 29,
-Each stack group 30 has a plurality of plates 31 placed in contact with each other, i.e. at least one cross flow plate 32, at least one air tight, water and water vapor permeable membrane plate 33 ) And at least one inlet plate 34, and/or
-The plate stack 7 is, in the direction of the line-up direction 29, a cross flow plate 32, a membrane plate 33 arranged in a contact manner on the cross flow plate 32, a membrane plate 33 ), and at least one laminate group 30 comprising an inlet plate 34 arranged in a contact manner on the inlet plate 34, and a membrane plate 33 arranged in a contact manner on the inlet plate 34. Raid device (1). The method according to claim 6 and 7,
The cross-flow plate 32 is formed by a flat body 35 comprising a flat large front surface 36 and a flat large rear surface 37 oriented opposite thereto,
-The flat body 35 defines a first cross flow passage 24 through the flat body 35 starting from the large front surface 36 to the large rear surface 37 while forming the flat body frame 39. It comprises a recess 38 forming,
-The flat body frame 39 completely covers the flat body frame 39 from the large front surface 36 to the large rear surface 37, respectively, forming the first and second plate stack fluid channels 22, 23. Comprising first and second passage arrangements (47, 48) passing through,
The flat body frame 39 is in each case a third passage arrangement completely penetrating the flat body frame 39, forming a functional fluid channel 25 from the large front surface 36 to the large rear surface 37 Including a sieve 49,
-The first and second plate stack fluid channels 22, 23 are interconnected with each other through a first cross flow passage 24, and thus during operation of the raid device 1, the first or second Raid device (1), characterized in that the two fluid flow (2, 3) can flow from the first plate stack fluid channel (22) to the second plate stack fluid channel (23) or vice versa. . The method according to claim 6 and 7 or 8,
The inlet plate 34 is formed by a flat inlet body 43 comprising a flat large front surface 44 and a flat large rear surface 45 oriented opposite thereto,
-The flat inlet body 43 is a second cross flow passage that completely penetrates the flat inlet body 43 from the large front surface 44 to the large rear surface 45 while forming the flat inlet body frame 46 Comprising a recess 38 forming 27,
The flat inlet body frame 46 is a flat inlet body frame 46, forming first and second plate stack fluid channels 22 and 23 from the large front surface 44 to the large rear surface 45, respectively. First and second passage arrangements (47, 48) completely penetrating through,
-The flat inlet body frame 46 comprises a third passage arrangement 49 and at least one inlet opening 28, the third passage arrangement 49 from a large front surface 44 to a large rear surface ( It fully penetrates the flat inlet body frame 46, forming a functional fluid channel 25 up to 45), and the inlet opening 28 is flat toward at least one side while forming an opening 51 up to the fluid channel 13 Opens the inlet body frame 46, so that the first or second fluid flow 2, 3 can flow from the third passage arrangement 49 to the fluid channel 13 or vice versa. Raid device (1), characterized in that. The method according to claim 8 or 9,
-Raid device, characterized in that the first, second and third passage arrangements 47, 48, 49 are each formed by at least one recess having a circular, elliptical or rectangular clear flow cross section 52 (One). The method according to any one of claims 1 to 10,
-The housing connector (9, 10) comprises first and second fluid connection (53, 54), respectively,
-The first fluid connection 53 of the first housing connector 9 and the first fluid connection 53 of the second housing connector 10 are fluidly connected to the first fluid channel arrangement 20, Characterized in that the second fluid connection 54 of the 1 housing connector 9 and the second fluid connection 54 of the second housing connector 10 are fluidly connected to the second fluid channel arrangement 21 Raid device (1). It is a method of operating the humidifier 4 formed according to claims 1 to 11,
1) providing and introducing first and second fluid flows (2, 3) into the humidifier (4);
2) providing a first pressure level to the first fluid channel arrangement (20), providing a second pressure level to the second fluid channel arrangement (21), and providing a third pressure level within the fluid channel housing (12). Including the step of providing,
-The third pressure level is:
-Lies between the standard atmospheric pressure of 1013.25 hPa and the first or second pressure level, or
-Lies between the first pressure level and the second pressure level, or
-Above the standard atmospheric pressure of 1013.25 hPa and the first and/or second pressure level so that the pressure difference between the first fluid channel arrangement 20 and the second fluid channel arrangement 21 and the fluid channel housing 12 is minimal. How to operate the overlying ambulance (4). A motor vehicle having a raid device (1) for transferring water and/or water vapor from a first fluid flow (2) to a second fluid flow (3),
-Including a plate stack 7, two housing connectors 9, 10, and a fluid channel system 11 respectively arranged on the front side of the plate stack mounting surface 8 of the plate stack 7 Having a ambulance (4),
-The plate stack 7 includes a plurality of plates 31 stacked in a contact manner on top of each other in the line-up direction 29 forming the longitudinal axis 6,
-The fluid channel system 11 comprises at least two fluid channel arrangements 20, 21,
-The first fluid channel arrangement 20 comprises a plate stack fluid channel extending through the plate 31 along the direction of the longitudinal axis 6,
-The second fluid channel arrangement 21 has a functional fluid channel plate stack passage extending through the plate 31 in the direction of the longitudinal axis 6 and a functional fluid channel housing passage connected to the functional fluid channel plate stack passage. Comprising a functional fluid channel 25 comprising,
-In a motor vehicle, the functional fluid channel plate stack passage and the plate stack fluid channel are interconnected in communication with each other within the plate 31 for transferring water and/or water vapor,
-The plate 31 is fully arranged within the functional fluid channel housing passage, and at least one plate 31 is a functional fluid channel housing passage to create a fluid connection between the functional fluid channel plate stack passage and the functional fluid channel housing passage. Vehicle, characterized in that the opening toward.

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